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Objective: To determine the prevalence of cheiloscopic patterns in Pakistani population. Study Design: Cross-sectional study. Place and Duration of Study: The study was conducted at Post Graduate Medical Institute (PGMI), Lahore, Capital diagnostic Centre CDC Islamabad, HITEC Taxilla for a duration of 12 months from 1 September 2021 to 31 August 2022. Materials and Methods: The lip prints of 320 males and females were taken by applying lip shades and then cellophane tapes (2 inches). They were transferred to an A4 sheet (white A4 ROCO Premium 80g copy papers) and then observed with magnifying hand lenses Deluxe magnifier (70mm diameter). The data was analyzed by IBM SPSS statistics 27.0. Chi square test was applied and a p value of ≤ 0.05 was considered statistically significant. Results: The results showed differences in all individuals in both lip prints. The predominant lip pattern was type III, observed in 159 (99.4%) male participants while it was observed in all the female participants. Type I' observed in 37 (23.1%) female participants and IV are greater in females 160(100%) than males. Type II (was) greater in males 152 (95.0%) than females. Conclusion: Lip prints are useful tool that can be used as biometric markers in dentistry and forensic odontology.

Lip print analysis has been proposed as a new human identification technique that allows the estimation of various individual parameters, such as population affinity. However, more consensus among the scientific community regarding this topic is needed. This study aimed to conduct a systematic review to gather evidence that might clarify whether cheiloscopy can be used in population affinity estimation. The systematic review was performed following the PRISMA guidelines. A bibliographic survey was conducted in PubMed, Scopus, and Web of Science databases, restricted to articles published between 2010 and 2022. Studies were selected according to eligibility criteria, and the study data were collected. The risk of bias in each study was assessed and applied as additional inclusion or exclusion criteria. A descriptive approach synthesized the results of the articles eligible for analysis. Out of seven included studies, six demonstrated differences in lip patterns between different population groups, and one obtained inconclusive results. Several methodological flaws in the studies and variations in the collection and analysis methodology applied, which may have conditioned the results obtained, were identified. The data gathered allowed us to conclude that no solid scientific evidence supports the use of cheiloscopy in population affinity estimation. [ABSTRACT FROM AUTHOR]

Although almost all studies exclude lip conditions because they would affect furrow patterns, some authors maintain that they should be considered temporary or permanent disabilities, all of which require further research in this context.We present a study in which we associate lip conditions with lip print patterns to associate both morphological elements for fieldwork purposes. Fifty-seven women and 48 men aged between 19 and 38 years who resided in Temuco (Chile) were included. The lip conditions and their prints were recorded, and an analysis, comparison, evaluation, and verification protocol (ACE-V) for lip prints was applied. Of the participants, 27.4 % had healthy lips, while 71.7 % had some type of condition. Although patterns related to temporary and permanent lip conditions were recognized in the lip prints in a non-significant way, the diagnosis of "healthy" or "altered" lip status could be made significantly by a calibrated examiner. Although these conditions do not represent identifying variables without empirical studies to validate them, they can affect the quality of the evaluated lip print; therefore, they should be recognized during the analyses considering the prevalence of these conditions. [ABSTRACT FROM AUTHOR]

Background: It is necessary to identify human individuals for personal, social, and legal reasons. The use of conventional methods such as use of fingerprints and lip prints is of paramount importance since personal identification by other means such as DNA analysis is sophisticated and not available in rural areas and developing countries. Lip Prints are the Wrinkles and grooves imprints visible on the lips They have been named by Tsuchihashi as 'Sulci labiorum rubrorum'. 19 major groups have been identified in humans by Karl Landsteiner (1971). Among these only "ABO" and "Rhesus" groups are used most of the time. Studies of the association between lip prints, blood groups and gender are scanty in the literature. There are other reference data available on various forms of personal identification such as fingerprints, lip prints, etc. which are of paramount importance. Aim and Objectives: The present study aims to determine and investigate the percentage distribution and the association of lip print, right and left thumbprints, blood groups, and gender among the north Indian population. Materials and Methods: For the study, we enrolled 200 north Indian students aged between 18 years to 25 years as a subject after obtaining ethical clearance from the ethical committee. Written informed consent was obtained from the study subjects. A single calibrated trained interviewer described the purpose and process of the study to the participants and recorded lip print, thumbprint, and blood groups. The examination was done on a simple chair and in abundant daylight conditions. Results: Among the total of 200 north Indian students aged between 18 years to 25 years, lip print in various quadrants was compared with gender, blood groups, and thumbprints were compared, and interpretation was made. Conclusion: The present study concluded that the Reticular pattern was the most predominant lip print pattern followed by Intersected and Branched Patterns in both genders. B+ve blood group was predominant among subjects. Loop pattern was the most predominant thumbprint. There was a significant correlation between left and right thumbprints. The present study did not show any statistical correlation of lip print pattern with gender (P value 0.65), thumbprint pattern (P value 0.56), and ABO blood groups (P value 0.841). [ABSTRACT FROM AUTHOR]

Objectives: This study aimed to assess the lip prints of Indian twins and non-twin siblings to evaluate the existence of heredity in the lip prints of these individuals. Materials and Methods: The study employed a blind, cross-sectional, quantitative approach with an inductive method and extensive direct observation. The sample consisted of 30 twins and 30 non-twin siblings, divided into three groups based on gender with 10 subjects in each subgroup. All participants were aged between 10 and 30 years and were instructed on the methods and techniques involved in the study. Results: The lip prints of participants were recorded using dark-colored lipstick, bond paper, cellophane tape, and a brush, and were examined for lip thickness measurement (in mm), classification of lip commissures, and assessment of groove patterns. The findings were then analyzed to determine the pattern of lip prints among twins and non-twin siblings. Conclusion: Cheiloscopy, the forensic investigation technique based on lip trace identification, could benefit from this study’s findings as it explores the existence of heredity in lip prints of Indian twins and non-twin siblings.

Objectives: This study aimed to assess the lip prints of Indian twins and non‑twin siblings to evaluate the existence of heredity in the lip prints of these individuals. Materials and Methods: The study employed a blind, cross‑sectional, quantitative approach with an inductive method and extensive direct observation. The sample consisted of 30 twins and 30 non‑twin siblings, divided into three groups based on gender with 10 subjects in each subgroup. All participants were aged between 10 and 30 years and were instructed on the methods and techniques involved in the study. Results: The lip prints of participants were recorded using dark‑colored lipstick, bond paper, cellophane tape, and a brush, and were examined for lip thickness measurement (in mm), classification of lip commissures, and assessment of groove patterns. The findings were then analyzed to determine the pattern of lip prints among twins and non‑twin siblings. Conclusion: Cheiloscopy, the forensic investigation technique based on lip trace identification, could benefit from this study’s findings as it explores the existence of heredity in lip prints of Indian twins and non‑twin siblings. [ABSTRACT FROM AUTHOR]

This study aimed to conduct a systematic review to gather evidence to clarify if cheiloscopy can be used in sex estimation and identify the reasons behind the lack of consensus in the scientific community. The systematic review was performed following the PRISMA guidelines. A bibliographic survey was conducted in PubMed, Scopus, and Web of Science databases, restricted to articles published between 2010 and 2020. Studies were selected according to eligibility criteria, and then the study data were collected. The risk of bias in each study was assessed and applied as additional inclusion or exclusion criteria. The results of the articles eligible for analysis were synthesized using a descriptive approach. In the 41 included studies, several methodological flaws and variations between studies that contribute to the discrepancy in results were identified. The data gathered allowed us to conclude that there is no strong scientific evidence to support the use of cheiloscopy in sex estimation, as there is no specific pattern for each sex, which reduces the criminalistic interest of cheiloscopy in estimating this parameter. [ABSTRACT FROM AUTHOR]

Cheiloscopic examinations have long been conducted, and many scientists have reported the usefulness of cheiloscopy for personal identification with a characteristic and individual pattern of furrows on the vermilion lip. For almost 40 years, research conducted in Poland has determined the patterns of these furrows and the separation and development of their individual features. This was the basis for forming expert opinions and presenting them in court as evidence. In Poland, cheiloscopic expertise is performed and the results of precise procedures that are accredited and assessed serve as evidence. Although the legal system in Poland (continental system) is completely different from the American system, cheiloscopic expertise was also assessed in detail according to the American standards of evidence. This narrative review presents the problem of cheiloscopic expertise as a scientific and practical issue and provides a brief historical overview of this field and the foundations of the Polish cheiloscopic identification method. We conclude that Poland has sufficient historical background and a robust development of cheiloscopy in the field on a scientific and legal basis; however, due to its reports being in the Polish language, its absence from the most relevant specialized literature, or simply a lack of cooperation between countries and experts, the country has unfairly been left out of the discussion. We believe that a new look at the Polish contribution to lip print identification is necessary to reinsert this topic into the current discussion of a new identification paradigm. [ABSTRACT FROM AUTHOR]

Background: Cheiloscopy (lip-print studies) is an important tool for the identification of human bodies in social and criminal issues. Lip prints present the labial mucosa with characteristic grooves and lines specific to every person. The purpose of this study was to analyze the lip prints among an adolescent sample of the Albanian population in Kosovo, to determine the most prevalent lip-print pattern in both genders, and to determine if there are any differences between male and female lip prints. Methods and Results: A total of 100 adolescents aged from 12 to 18 were randomly selected from schools in southeastern Kosovo. The lip prints were classified according to Suzuki and Tsuchihashi's classification (1970). For the analysis, the lips were divided into four quadrants: right upper quadrant, left upper quadrant, right lower quadrant, and left lower quadrant. The analysis was done using a magnifying glass. In the present study, the slightly prevalent lip-print pattern among all subjects was Type II (25.0%), followed by Type I (20.0%), Type III (17.0%), Type IV (16.0%), Type I′ (16.0%), and Type V (6.0%). The lip prints of Type IV were slightly more common in female subjects (24.0%), followed by Type II (20.0%), Type I (18.0%), Type III (18.0%), Type I′ (12.0%), and Type V (8.0%). Type II was slightly more common in male subjects (30.0%), followed by Type I (22.0%), Type I′ (20/0%), Type III (16.0%), Type IV (8.0%), and Type V (8.0%). However, some differences between the sexes, with a tendency toward the predominance of Type IV in women and Type II in men, were not statistically significant, and there was no significant difference between the lip patterns by quadrants in women and men.

Purpose: Lip prints are unique and have potential for use as a human identifier. The purpose of this study was to observe possible cheiloscopy differences of individuals with and without parafunctional oral habits such as smoking, vaping, playing a wind instrument or using an asthma inhaler. Methods: This IRB approved blinded cross‐sectional observation pilot study collected lip prints from 66 individuals, three of which were excluded. Participants cleansed their lips, then lipstick was applied to the vermillion zones of the upper and lower lips. Adhesive tape was applied to the lips and prints were transferred to white bond paper for viewing purposes. Each set of included lip prints was divided into quadrants and dichotomized into a group of those with an oral parafunctional habit or with no such habits. Each quadrant sample was then manually analysed and classed according to the gold standard Suzuki and Tsuchihashi system. Results: A total of 252 dichotomized lip print quadrants (with habits n = 76, 30.2%, and without habits n = 176, 69.8%) were analysed. Type II patterns were the most common for examined quadrant samples; however, no statistically significant differences (Pearson's chi‐squared test, p = 0.366) were observed between pattern classifications of samples with and without parafunctional oral habits. Conclusions: There is no statistically significant difference of lip print patterns between individuals with and without parafunctional oral habits. Further research on populational variations is needed for cheiloscopy to aid in human identifications. [ABSTRACT FROM AUTHOR]

Purpose Lip prints are unique and have potential for use as a human identifier. The purpose of this study was to observe possible cheiloscopy differences of individuals with and without parafunctional oral habits such as smoking, vaping, playing a wind instrument or using an asthma inhaler. Methods This IRB approved blinded cross-sectional observation pilot study collected lip prints from sixty-six individuals, three of which were excluded. Participants cleansed their lips, then lipstick was applied to the vermillion zones of the upper and lower lips. Adhesive tape was applied to the lips and prints were transferred to white bond paper for viewing purposes. Each set of included lip prints was divided into quadrants and dichotomized into a group of those with an oral parafunctional habit or with no such habits. Each quadrant sample was then manually analyzed and classed according to the gold standard Suzuki and Tsuchihashi system. Results A total of 252 dichotomized lip print quadrants (with habits n=76, 30.2%, and without habits n=176, 69.8%) were analyzed. Type II patterns were the most common for examined quadrant samples; however, no statistically significant differences (Pearson's chi-squared test, p=0.366) were observed between pattern classifications of samples with and without parafunctional oral habits. Conclusion There is no statistically significant difference of lip print patterns between individuals with and without parafunctional oral habits. Further research on populational variations is needed for cheiloscopy to aid in human identifications. [ABSTRACT FROM AUTHOR]

Introduction: In criminal investigations and court cases, as well as in civil identification and civil litigation, forensic dentistry is essential. The analysis of lip prints is among the least invasive and cost effective way of human identification. Lip prints like blood groups can add as an adjunct in the investigations where in situations of mass disasters.The aim of the study was to assess and corelate lip pattern and blood groups in 100 study participants. Materials and Methods: A total of 100 participants, 50 male and 50 female were included in the study. The method followed was according to Costa and Caldas Technique, and the classification method followed was according to Suzuki and Tsuchihashi Y et al. Result: Type 1 and Type 4 showed correlation with O positive blood group. Type III was seen with a predilection with B positive blood group. It was further observed that type 1 lip print type was seen more in males when compared to females. Females showed both Type 1 and Type 4 lip print. Discussion: The present study showed a trail of association with Type 1 and 4 in O positive blood group subjects. The Type 1 was seen in males and females, but females were more associated with Type 4 lip print. This study was in accordance with the results found by Kersarwani et al. in 2021. Conclusion: Though the present study showed no statistical significance it can be carried out with a larger sample size. [ABSTRACT FROM AUTHOR]

Hereditary lip prints have been studied by several researchers. However, the literature shows no consensus among the scientific community regarding this topic. Therefore, the aim of this study was to conduct a systematic review to gather evidence to clarify whether the surface structure of lip prints is hereditary and, consequently, if a familial relationship between individuals can be established through the analysis of lip prints. The systematic review was performed following the PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analyses) guidelines. A bibliographic survey was conducted in PubMed, Scopus, and Web of Science databases, restricted to articles published between 2010 and 2020. Studies were selected according to eligibility criteria, and then the study data were collected. The risk of bias of each study was assessed and applied as additional inclusion or exclusion criteria. The results of the articles eligible for analysis were synthesized by a descriptive approach. In the seven included studies, methodological variations, including the definition of similarity, that contribute to the heterogeneity of results were identified. The data gathered allowed to conclude that there is no strong scientific evidence to support the hypothesis of the existence of heredity in the surface structure of lip prints, since it was not proven that similarities between parents and children occur systematically in all families. [ABSTRACT FROM AUTHOR]

Lip traces and teeth marks can play an important role in identifying people, as forensic sciences based on new technologies are constantly evolving. As for lips, the pattern of wrinkles on them has individual characteristics like fingerprints, so lip print studies have come to attract the attention of scientists as a new tool for human identification. Coming into contact with the body or clothing of other people, with smoking items and various kitchen utensils, the lips, through cosmetic deposits, saliva deposits and food, form traces that are suitable for use in criminal investigation activity. Scientific research undertaken by specialists in the field demonstrates that lip traces can reproduce characteristic elements of shape, size and relief (disposition of the papillae, the vertical groove of the upper lip, and the dimple of the lower lip) which, under certain conditions, can ensure the identification of the author. In their turn, teeth marks have an important value in identifying people, they can be found especially in the case of crimes of violence, rape, robbery (both on the body of the victim and the aggressor), but also in the case of other non-violent crimes, when such traces are left on the crime scene in various bitten food products (cheeses, fruits, such as apples, pears, etc.), capable of delicately preserving the details of the teeth pattern. In both cases, through this study we aimed to highlight the most important aspects related to the forensic research of lip traces and teeth marks, their expertise, as well as the limits and challenges related to the probative value of the expertise carried out in the case. [ABSTRACT FROM AUTHOR]

Background: Identification of human beings forms the basis of any criminal investigation. Lip print study, also known as cheiloscopy is the study of patterns formed by the ridges and grooves on the external surface of lips. This study aims to classify lip prints and study its correlation to sex. Methodology: 205 student participants who volunteered were included in this study of which females were 123 and males were 82. A food safe pigment was applied to the lips. Over this pigment, the glued portion of the cellophane tape strip was placed and the subject was asked to make a lip impression in the normal rest position of the lips by dabbing it in the centre first and then pressing it uniformly toward the corners of the lips. The cellophane strip was then stuck to the white chart paper for permanent record purpose, then visualized by magnifying lens and analysed quadrant wise. Conclusion The most common lip print in the upper lip was found to be type 3 and in the lower lip was found to be type 4. Statistically significant difference with respect to sex was observed in first quadrant only (p = 0.01) and not in others. [ABSTRACT FROM AUTHOR]

Background: The concept of lip prints is clear from previous literature review that this evidence can be used for forensic purpose. While accepting that a body of data existed regarding the individuality of lip pattern, there is no credible research on the stability of the lip detail over time. The timescale in question could be measured in weeks and months or years. The former would be used in police investigations and the latter can be used by geneticist. [ABSTRACT FROM AUTHOR]

Abstract Background The wrinkles and grooves present on the sulci labiorum of human lips form characteristic patterns. As previous authors claimed, these can be used for personal identification in forensic cases because they are unique, permanent, and classifiable. Many scientists had devised different systems to classify the lip prints (Suzuki and Tsuchihashi, Martin Santos, Renaud, Afchar Bayar, and Jose Maria Dominguez). These systems were based solely on the shape of patterns present on the whole lip. However, sometimes, lip prints affected by either habitual smoking or any other pathological conditions are encountered. The investigator may have to form an opinion on partial lip print to identify the culprit. Therefore, in the present study, an alternative comprehensive system to classify even the partial prints has been proposed. Lip print samples were collected from 500 individuals (400 females and 100 males, respectively) using the tape lifting method. The whole lip print (Klein’s zone) was divided into 10 quadrants (five each on upper and lower lips) to study the whole pattern area thoroughly. The sample-wise and quadrant-wise frequency of all the patterns was statistically calculated. Sexual dimorphism of the lip print patterns was also assessed statistically. Results The method used emphasizes the consistency of patterns, which have been divided into Basic and Combination Patterns. Detailed examination of lip prints revealed that all the quadrants tend to have 7 types of Basic Patterns and 43 types of Combination Patterns despite similar appearance. These patterns can be further categorized into various subtypes based on the direction and orientation of wrinkle lines constituting the original pattern. Most of the Basic and Combination Patterns were widely distributed in all the analysed lip print samples and showed significant dependence on the sex of the subject. Conclusions The lip print patterns examined in the present study can be useful as an alternative to the existing systems to classify even partial lip marks recovered at the crime scene.

Introduction: India is one of the largest countries which is inhabited by diverse populations of different tribes, castes, religious, and migrant groups. In forensic investigation, personal identification plays the greatest importance. Lip prints are considered as one such tool for personal identification. Study of lip prints is referred to as cheiloscopy and they are considered as unique in every individual just like fingerprints. Materials and Methods: Three hundred randomly selected specimens were taken in our study comprising of both the genders and of various regions from Odisha, West Bengal (WB) and Bihar was considered in the study. The age selected in our study ranged from 18 to 25 years comprising of 151 males and 149 females. Lip impression was made and viewed for different lip prints pattern under a magnifying glass of 10X. Results: There was a total of six lip print type identified in the present study. The type of lip print pattern found more in males was Type 2 and in females was Type 1. The type of lip print pattern found more in Bihar and WB was Type 2 and Odisha was Type 1. Conclusion: As the lip print is unique for every individual, Cheiloscopy is considered as a useful method of identification in forensic odontology. The study showed statistically significant difference in gender with a variation in geographical location. [ABSTRACT FROM AUTHOR]

Objective: To assess for any peculiar lip prints in relation to the lip shapes of individual, and determine the most common lip print type among the members of biological families. Study Design: Descriptive study. Setting: Department of Forensic Medicine & Toxicology, Women Medical & Dental College, Abbottabad. Period: January 2018 to June 2018. Material & Methods: A total of 216 individuals (father, mother, both children's), who underwent descriptive study of lip impression collection without any anesthesia or drug, were enrolled into the present study. Father, mother and two babies of each family were selected. Lip prints of Father, mother and both babies of each family were recorded. Each lip of 54 offspring's was compared with the corresponding lip of his/her father mother and other baby. The segments of each lip of the offspring's that matched/ resembled with either of father mother and biological babies were recorded. Results: Out of 54-total families, biological babies of 19(35.18%) families observed resemblance with father, whereas biological babies of 35(64.81%) families observed resemblance with mother. There was no definite identical lip print observed in any of the children. Furthermore, the prevalence of Type II lip prints was higher type present in males and in females. We observed that lip shape 7 was the most frequent lip shape type in most of individuals. Conclusion: Lip prints of study participants did not clearly match with each other, evenly distributed in both genders and distinctive similar to finger prints. The data did not show any specific association of the lip print type with lip shape. It is considered feasible to apply lip prints features in personal identification. [ABSTRACT FROM AUTHOR]

Background: The wrinkles and grooves visible on the lips form the characteristic pattern of an individual and imprints produced is termed as "lip print." The study of these prints is known as "cheiloscopy." Variations in patterns among males and females could help in sex determination. Lip prints, therefore, can constitute material evidence left at a crime spot, equivalent to fingerprints. These patterns are heritable and are believed to be unique and permanent. The lip prints of parents and children and those of siblings have been shown to have some similarities. The influence of inherited lip print patterns among family members is still a new concept and studies are scanty in literature. Objectives: The objectives are to determine the most common patterns and gender-wise distribution among the study population and to analyze the inherited lip print patterns from parents to their offspring. Materials and Methods: Lip prints of 30 families were obtained using lipstick and cellophane tape. Based on criteria given by Suzuki and Tsuchihashi, patterns were recorded and analyzed from four quadrants of the lips using a magnifying lens. Results: The positive resemblance of lip print patterns from parents to their offsprings showed statistically significant resemblance in one quadrant and rest of the three quadrants showed no significant association between parents and offspring. Conclusion: Positive resemblance among the family members can be attributed to the genetics and inheritance. Lip print can be considered as an auxiliary method of identification. [ABSTRACT FROM AUTHOR]

Background: The wrinkles and grooves present on the sulci labiorum of human lips form characteristic patterns. As previous authors claimed, these can be used for personal identification in forensic cases because they are unique, permanent, and classifiable. Many scientists had devised different systems to classify the lip prints (Suzuki and Tsuchihashi, Martin Santos, Renaud, Afchar Bayar, and Jose Maria Dominguez). These systems were based solely on the shape of patterns present on the whole lip. However, sometimes, lip prints affected by either habitual smoking or any other pathological conditions are encountered. The investigator may have to form an opinion on partial lip print to identify the culprit. Therefore, in the present study, an alternative comprehensive system to classify even the partial prints has been proposed. Lip print samples were collected from 500 individuals (400 females and 100 males, respectively) using the tape lifting method. The whole lip print (Klein's zone) was divided into 10 quadrants (five each on upper and lower lips) to study the whole pattern area thoroughly. The sample-wise and quadrant-wise frequency of all the patterns was statistically calculated. Sexual dimorphism of the lip print patterns was also assessed statistically. Results: The method used emphasizes the consistency of patterns, which have been divided into Basic and Combination Patterns. Detailed examination of lip prints revealed that all the quadrants tend to have 7 types of Basic Patterns and 43 types of Combination Patterns despite similar appearance. These patterns can be further categorized into various subtypes based on the direction and orientation of wrinkle lines constituting the original pattern. Most of the Basic and Combination Patterns were widely distributed in all the analysed lip print samples and showed significant dependence on the sex of the subject. Conclusions: The lip print patterns examined in the present study can be useful as an alternative to the existing systems to classify even partial lip marks recovered at the crime scene. [ABSTRACT FROM AUTHOR]

Aim The present study was conducted to assess gender identification and this can be used as a reliable tool in the identification of an individual at any judicial process. Materials and Methods This study comprised of 82 dental students (42 females and 40 males) with age ranging from 19 to 21 years. Lip prints were recorded with the help of a cellophane tape strip and analysed according to Suzuki and Tsuchihashi classification criteria. Results The mean age distribution among males was 20.07 ± 0.81 where as in females it was 19.78 ± 0.73. Distribution of different patterns in upper lip vertical patterns was very prominent when compared with reticular, branched and intersecting. Distribution of different patterns in lower lip branched patterns was very prominent when compared with reticular and verticals. Comparing between upper lip with lower lip pattern wise there was no statistically significant. Compared different patterns in relation with lower lip the values showing stastically significant (p≤0.05). Summary and Conclusions Lip prints or Cheiloscopy can be used an individual identification. The results obtained in our study do not show any evidence that cheiloscopy can be used as gender identification. This could be because of smaller sample size, we need larger sample to give consolidated evidence related with gender identification. [ABSTRACT FROM AUTHOR]

Cheiloscopy (quiloscopy) is a method of identification of a person based on characteristic arrangement of lines appearing on the red part of lips. Lip prints are unique to an individual, and persist in their characteristics over a period of years. They are like fingerprints reliable method for identification. The aim of the study was to find out various patterns of lip prints and the commonest pattern observed in both males and females. Materials and method: The study was carried out on 200 individuals residing in suburban area in Dakshina Kannada District, of ages ranging from 12-60yrs of both sexes after taking consent. The present study was carried out from 2013 to 2015.The materials used were dark colour lipstick, bond paper, cello tape. Results: The common pattern of lip print observed was Type I in the entire study population in both males and females. In Dakshina Kannada however it was not statistically proved significant. There was no significance between patterns and gender. [ABSTRACT FROM AUTHOR]

Like fingerprints, lip prints are considered distinctive to an individual. A lip print found at the crime scene can help reveal the identity of the persons involved. The present study focuses on the differentiation of lip prints according to sex and studies the distribution of lip print patterns in various communities of the Bundelkhand region of Uttar Pradesh, India. A total of 400 samples of lip prints were collected from males and females of age group 18-24 years, belonging to Brahmins and Yadavs from the Bundelkhand region of Uttar Pradesh. The most prevalent was Type I lip print in Brahmin males and Type II in Brahmin females, whereas Type III pattern was the most common in Yadav males and females. When Lip patterns were statistically evaluated based on the sex differences in Brahmins, Type II and I patterns may help in sex determination. Whereas, when the data is compared between males and females of Yadavs, Type III lip print had high predominance in comparison to other patterns but may not help in sex determination.

Personal identification is of vital importance in forensic odontology for ethical, humanitarian and criminal enquiries. The applicability of Cheiloscopy ( study of pattern of lip print), one of the easiest tools available in individual and medicolegal identification, is an area of extensive research in recent years. With the objective to investigate the uniqueness of lip patterns in relation to gender and blood groups, this study was conducted on 100 subjects, which included 50 males and 50 females. The lip prints obtained were studied by applying Suzuki and Tsuchihashi’s classification.Type 2 (37%) was the most common lip print type in males and Type 3 (38.5%) was the most common lip print type in females. The Lower lip print can help in gender determination. No significant statistical correlation was found between the lip print patterns and blood group. Along with the traditional methods of identification like fingerprint analysis,Cheiloscopy can also be helpful in the identification of a person.However, the utility of the same in forensic medicine still remains largely untapped and unacknowledged. Similar studies with larger sample sizes are required to obtain statistically significant reports thereby allowing a more impactful emergence of lip print patterns usage in forensic analysis. [ABSTRACT FROM AUTHOR]

Background: The prevalence of obesity has been steadily increasing worldwide. Reliable and noninvasive tools that can be used to diagnose such conditions may help us in mass screening and prevention. Finger prints and lip prints have been used as the genetic markers in some diseases such as diabetes mellitus. Studies to correlate a possible association of such markers among obese individuals have not been reported in India to date. The present study was conducted to determine and compare the lip print and finger print patterns in normal and obese individuals and also to evaluate any possible correlation between the lip prints and finger prints in both the study groups. Methodology: Lip and finger print patterns of 100 obese and equal number of age- and sex-matched healthy individuals were analyzed. Right thumb, right index, left thumb and left index finger prints were evaluated. Gender-wise comparison was also made. Results: Lip prints revealed no significant difference between obese and nonobese individuals. Predominant Type I lip print was observed in both the study groups. Comparison of finger prints between obese and nonobese individuals revealed a highly significant results for all the fingers. Predominant finger print patterns in the right thumb, right index, left thumb and left index among obese individuals were whorl (51%), loop (83%), whorl (79%) and arch (74%), respectively. No correlation between the lip prints and finger prints was noted. Conclusion: Finger prints in the obese individuals showed significant differences when compared to the normal controls while lip prints failed to reveal any significant difference. Lip prints did not correlate with the finger prints. Right thumb revealed a significant gender difference among obese individuals. [ABSTRACT FROM AUTHOR]

The objective of the study was to specify the method with the highest probability of correct sex identification based on lip furrow pattern. Three methods were verified: Vahanwala’s method, identification based on the mid-section of lower lip print and our own method. The examined group included 242 persons aged 15-30 years, 68.6% females and 31.4% males. Cheilograms were taken with the method proposed by Vanahwala, modified in such a way that the prints of lower and upper lips were taken separately. The lip furrow patterns were classified according to Suzuki and Tsuchihashi, modified to include horizontal furrows which were considered by Renaud. In all the quadrants patterns II, III and VI prevailed among males and patterns I, I’ and II among females. Females were more frequently diagnosed correctly than males. Our method in which all the lip print was analysed without division into quadrants was the most effective, while Vahanwala’s method was the least so.

Lip print is an anatomical character of the human lips. In forensic identification, lip print patterns can lead us to important information and helps in person's identification. The grooves present on human lips (Sulci labiorum) are unique to each person and can be used to determine identity. Fingerprints, post-mortem reports and of late, DNA fingerprinting, have been successful in person identification in the field of forensic science. Just as in these method, lip prints can be instrumental in identifying a person positively and can be used to verify the presence or absence of a person at the scene of crime. Cheiloscopic techniques have an equal value in relation to other types of forensic evidences for personal identification. Material and Method: The study was conducted on 100 students of age group 18-25 yrs. Lip stick was applied on each individual and the lip-print was obtained on a paper. The lip impression patterns were studied, classified and recorded using magnifying lens with light. Result: Lip patterns are unique for the individual and no two patterns are identical to each other. In study population,Type III pattern was most common in male while In females predominant pattern was type I. Thus in medico legal case, due to clear differentiation in sexes it is easy to identify person and gender. Conclusion: Cheiloscopy can be reliable method for personal identification and gender dimorphism. [ABSTRACT FROM AUTHOR]

Lip print patterns are referred to as unique to each individual, but controversy exists surrounding twins. In this study, the lip prints of 19 pairs of monozygotic and 47 pairs of dizygotic twins were studied. The left lower lip was photographed and the furrows were classified using Renaud's classification. Results showed the same lip pattern was found only in one monozygotic pair (5.3%) and in 4 dizygotic pairs (8.5%), and no significant statistical differences were found between groups (p>0.05). In monozygotic twins only type C furrows presence displayed statistical significant differences (p=0.034). As for dizygotic twins, there were statistical significant differences in the frequency of type A (p=0.005) and type G furrows (p=0.018). As for the most common types, both groups displayed a higher prevalence of vertical furrows (type B: 97.4% and 96.8%, type A: 86.8% and 87.2%, in monozygotic and dizygotic, respectively). The least frequent furrow type was type I and type E in monozygotic (2.6% and 5.3%, respectively) and types E, F and I, in dizygotic (6.4%, 7.4%. and 7.4%, respectively). Our results seem to point out that lip print patterns should be useful carefully in twins' identification. [ABSTRACT FROM AUTHOR]

Cheiloscopy is a forensic investigation technique that deals with the identification based on lip traces. Based upon the research, it was established that the arrangement of lines on the red part of human lips is unique for each human being. The present study is an attempt to determine the pattern of lip prints and evaluate its uniqueness in a sample of Naga population and also their association with print in the four quadrants of the lip. A total of 100 (15-40) years individuals were randomly selected. With the help of brush a layer of lipstick was applied on the lips of the subject. Following the basis of Tsuchihashi's classification the lip prints collected were studied. It was found that Type I' pattern was predominant among the studied subjects followed by Type I and Type III pattern while Type V pattern was the least frequent Lip pattern distribution in (all four quadrants) in both males and females of Nagas. It is found that no two or more persons had similar features of lip grooves. The frequency of repetition of the lip print pattern in successive quadrant is found to be high. Lip print pattern can be used as an additional tool for personal identification. [ABSTRACT FROM AUTHOR]

Background: The study of lip prints, is commonly applied in forensic odontology and it is known as cheiloscopy. The term cheiloscopy was derived from Greek words, in which "cheilos" means lip and "scopy" means to examine. In general, cheiloscopy is define as a method of identifying an individual based on the arrangement of lines seen on the red part of the lips or a science dealing with the various line appearing on the red part of the lips. The pattern of wrinkles and grooves that are present on the lips has distinct characteristic features of an individual which are almost similar to the fingerprints. It also will not change throughout the life. Therefore, it can be used for personal identification and sex determination. Aim: To investigate lip print pattern in males and females and to evaluate them between Malaysian and Indian population. Materials and Method: There were 40 participants of both gender. 20 of them are from the Malaysian population and another 20 people are from the Indian population. Each participant was instructed to clean their lips with a clean white cloth, before taking the lip print. This was followed by the application of dark coloured lip stick on lips by using the lip stick applicator. Cellophane tape was used to take the negative impression of the lip pattern. The glued portion of the cellophane tape was placed on the lips by giving a light pressure beginning from the centre of the lips till the corner of the mouth. Then, the impression was transferred to a clean white paper and seen under the magnifying glass. Results: Type I lip pattern was commonly seen in Indian population, followed by type III, II and IV. Whereas for Malaysian population, type III was most common followed by type I, II and IV. There was significant difference between both population. In this study, it showed that type I was the most common lip print pattern seen in both Indian and Malaysian population for females. Whereas for male, type III was more common in Malaysian population, and both type III and IV were more common in Indian population. Conclusion: There was no significant difference in both population according the general distribution of lip print pattern. There was no correlation or similarity of lip print patterns between each participants in both population. Thus, cheiloscopy can be used for sex determination and also personal identification. [ABSTRACT FROM AUTHOR]

Context (Background): Lips prints are unique and are a tool for personal identification. Aims: Indian population can be divided into different ethno-racial groups. In this study, we aimed at finding the most and the least prevalent lip print patterns in these groups and also to observe any similarities or differences that may exist in these groups in terms of lip print patterns. Settings and Design: Lip prints in 755 individuals categorized into different ethno-racial groups were studied. Materials and Methods: Brown- and pink-colored lipsticks, cellophane tape, and magnifying lens were used to record and study the lip prints. Results: Among all the three ethno-racial groups, Type I was the most prevalent lip print pattern observed. The least prevalent lip print pattern in all the three groups was Type IV. Inference/Conclusion: Lip prints hold potential as supplementary tools for identification where they can be recorded with ease. The observation and classification of lip print patterns in different ethno-racial groups not only provide some useful data but also open a new window to a field that can contribute extensively to criminal investigation and identification.

Aims: The present study was conducted with the aim to explore the authenticity and evidentiary value of imprints of the lips for any peculiar pattern regarding specific gender so that it could be used as a reliable tool in the identification of an individual at the crime scene. Materials and Methods: This study comprised 500 (248 females and 252 males) randomly selected dental students with age ranging from 18 to 30 years. Lip prints were recorded with the help of a cellophane tape strip and analyzed according to Suzuki and Tsuchihashi classification. Results: The most predominant pattern in the entire study population was found to be Type I in females and Type III in males with highly significant statistical values. It was also demonstrated that no two lip prints were found to match each other which proves that every individual has unique lip prints. This uniqueness can further help in personal identification. Conclusion: Cheiloscopy or lip print analysis can be used to identify an individual and place him/her at the crime scene. It is an important antemortem tool which may aid in justice to the victim.

Introduction: Lip prints, due to their unique patterns are typical to an individual, hence, used for personal identification. They vary in predominance, gender and race among different populations. The objective is to study their distribution among medical students and identify the predominant type. Methods: The descriptive cross-sectional study was conducted on the medical students of Nepalese Army Institute of Health Sciences, from April 2019 to May 2019 after the ethical approval. Convenience sampling was used. The prints were classified according to Suzuki and Tsuchihashi. The collected data was entered in SPSS to determine the frequency and percentage. Sub group analysis was done on basis of gender and types of lip print. Results: Out of 205 participants, prevalence of type I lip print among medical students is 70 (34.1%). Type I lip print was found to be most common followed by Type II in 57 (27.8%) and Type V in 6 (2.9%). One hundred forty one (68.8%) were male and 64 (31.2%) were female. The predominating pattern in RUQ; LUQ; LLQ; RLQ among male and female is Type I 46 (32.6%) and Type I 39 (27.7%); Type II 39 (27.7%) and Type II 44 (31.2%); Type I 19 (29.7%) and Type II 19 (29.7%); Type I 31 (48.4%)and Type I 27 (42.2%) respectively. Conclusions: Type I was the most common while Type V was the least common lip print. However, there was variation in its frequency and distribution according to the quadrant and sex.

Background: The wrinkles and grooves on the labial mucosa called sulci labiorum forms a characteristic pattern called as lip prints. The study of lip print is cheiloscopy it is used as an identification tool in the forensic department these days since lip prints are unique as fingerprints in each individual’s. Aim: The aim of the study was to compare the lip prints of North Indians and South Indians and to analyze its uniqueness. Materials and Methods: The study group consists of 100 people, which included both 50 North Indians and 50 South Indians. The subjects had no lesions on their lips and they were not sensitive to lipsticks. A single coat of lipstick was applied on the subject’s lips evenly, not too thick. The subjects were asked to keep their lips in a closed and resting state, and a strip of cellophane tape was used to take the lip print impression. The grooves and furrows in the impression were clearly examined using a magnifying glass, and the type of lip print was identified. The number of lines and furrows, length, branching, and combination was noted and recorded. Then, the lip prints were compiled, analyzed, and interpreted. Results: Lip prints are unique like our thumbprint and in correlation of lip prints among North Indians and South Indian, Type 2 was dominant in North Indian upper right lip; Type 1a was dominant in South Indian. Type 1a was dominant in both North Indian and South Indian upper left lip. Type 2 was dominant in both North Indian and South Indian lower right lip Type 2 was dominant in North Indian lower left lip; Type 1a was dominant in South Indian lower left lip. Conclusion: Lip prints are unique and it can be used for identification purposes. Among North Indians and South Indians, Type 2 and Type 1a were most predominant in both the population. [ABSTRACT FROM AUTHOR]

Personal identity is an attribute of a mankind which makes him or her unique. Cheiloscopy is one of the sciences which is used to study and examine the lip prints pattern in order to establish the personal identity in Forensic Medicine. Objective: To categorize lip patterns in female population of different divisions of Punjab, Pakistan according to Suzuki and Tsuchihashi's classification. Study Design: Descriptive, Cross-sectional study. Setting: The present study was conducted on 357 female medical students of 1st, 2nd and 3rd year of University Medical and Dental College, Faisalabad in the department of Forensic Medicine and Toxicology. Period: March-June, 2018. Materials and Methods: After obtaining informed consent students were asked to stand erect and their lip prints were taken on the glass slide. Next carbon black powder was dispensed on the slide and the latent lip print pattern was obtained. The slide was preserved by using cellophane tape and lip print patterns were scanned. These patterns were then categorized according to Suzuki and Tsuchihashi's classification by using Software Adobe Photoshop version 6.0. Results: The results showed that most participants were from central Punjab (70%) followed by Southern Punjab (19%), Western Punjab (9.6%) and Northern Punjab (1.4%). The most common lip print pattern was Type I (66%), second was Type II (17.3%), then Type IV (7.1%), after that Type III (5.1%), Type I'(2.5%) & last was Type V (1.7%). Conclusion: The most common lip print pattern in females of Punjab, Pakistan is Type I while the least common is Type V. [ABSTRACT FROM AUTHOR]

Purpose: Cheiloscopy deals with the study of elevations and depressions which form a characteristic pattern on the external surface of the lips. Lip grooves are considered to be unique and analogous to the fingerprint. The aim of the research was to determine the type of grooves on healthy lips of men and women using lip prints in a sample of Croatian population, to determine whether there is a statistically significant difference between men and women in the types of grooves and to determine whether there are any differences between male and female lip prints. Material and methods: A randomly selected sample of Croatian population consisted of 40 male and 50 female subjects. The samples of lip grooves were classified according to Tsuchihashi classification. Results: The research has shown that most women in Croatia belong to Type 2 (40.0%), followed by Type 1 (34.0%), Type 3 (12.0%), Type 4 (8.0%), and Type 5 (6.0%) which is of less importance. Most Croatian men belong to Type 3 (35.0%) and Type 2 (25.0%). A small number of men belong to Type 4 (15.0%), Type 5 (12.5%) and Type1 (12.5%). Conclusion: There was a statistically significant difference between men and women regarding the types of lip grooves.