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Background. Bonding is an important step in fixed orthodontic therapy and evaluation of bracket bond failures while using different bonding systems is required. The aim of the present study was to evaluate and compare bracket failure rates of a novel no primer adhesive with conventional primer-based orthodontic adhesives. Methods. This split mouth study was conducted among fifteen patients who underwent therapy with fixed orthodontic appliances using metal brackets. Total of 300 brackets were bonded and the bracket bond failure rates were assessed at the end of 3 months. The difference in bond failure rates between the two groups were assessed in different teeth. Descriptive statistics and chi-square test was performed. Results. Evaluation of bracket bond failure rates showed a higher incidence of bond failures in the group bonded with the primerless adhesive (6.3%) compared to conventional adhesive (2.3%) but there was no statistically significant difference (P>0.05). No intergroup difference was found in the bracket failure rates of individual teeth (P>0.05). Conclusion. Higher incidence of bond failures were noted with brackets bonded with primerless adhesive when compared to primer-based adhesive but no significant difference was noted over a period of 3 months. Mandibular canine and premolars had a higher bracket failure rate with no significant difference between the adhesives.

Objectives: Landmark identification is of utmost importance in cephalometric analysis but it turns out to be the main source of error. With modern inventions in the field of artificial intelligence (AI), it becomes essential to assess the reliability of computer-automated programs. A greater deal of time can be conserved with fully automated programs such as WebCeph, which uses an AI-based algorithm that performs automated and immediate cephalometric analysis. This study aimed to evaluate the accuracy, reliability, and duration of tracing cephalometric radiographs with WebCeph, an AI-based software in comparison to digital tracing with FACAD and manual tracing. The null hypothesis proposed is that there is no statistically significant difference among the three methods with regard to accuracy of cephalometric analysis. Material and Methods: Pre-treatment cephalometric radiographs of 25 patients (14 males and 11 females, mean age of 18 ± 3.2 years) were selected randomly from the dental information archiving software of Saveetha University, Department of Orthodontics, Chennai. Composite analysis with skeletal, dental and soft-tissue parameters was selected and cephalometric analysis was done with all three methods – Manual tracing (Group 1), digital tracing using FACAD (Group 2), and fully automated AI-based software WebCeph (Group 3). The timing for each method of analysis was calculated using a stopwatch in seconds. Values were tabulated in an Excel sheet and statistical analysis including one-way analysis of variance and post hoc Tukey test were performed. Results: No statistically significant difference was found between the three methods for cephalometric analysis, P > 0.05. The time taken for measurement using the three different methods was the least while using WebCeph (30.2 ± 6.4 s) and the maximum while manual tracing (472 ± 40.4 s). Conclusion: WebCeph is a reliable, faster and practical tool for analyzing cephalometric analysis in comparison to digital tracing using FACAD and manual tracing.

Introduction: White Spot Lesions (WSLs), also known as “white opacity,” are the result of the demineralisation occurring on tooth surfaces in patients undergoing fixed orthodontic treatment. In addition to the various other factors, development of WSLs can also be influenced by the type of brackets and ligation employed. Aim: Evaluating the prevalence of WSL among patients who underwent fixed orthodontic treatment with passive self-ligation mechanotherapy. Materials and Methods: This retrospective study was conducted using photographic records of patients who received orthodontic treatment using a passive self-ligation system at Saveetha Dental College in Chennai, Tamil Nadu, India. The records of 97 patients in the age range of 10 to 30 years who received orthodontic treatment using the Damon self-ligating system regardless of gender were obtained from April 2016 to April 2021. The presence of WSL was investigated retrospectively before and after treatment. Modified Gorelick’s scale was used for scoring the lesions. Statistical analysis was carried out using Statistical Package for Social Sciences (SPSS) software version 17.0 and paired t-tests were done. Results: Data of total of 97 subjects (45 females (46.39%) and 52 males (54.63%), mean age: 17.70±5.72 years) undergoing orthodontic treatment with self-ligation brackets was included in the study. The overall prevalence percent of WSLs in the study was 71.13%. The prevalence of WSLs among females was 70.5% and in males, it was 73%. There was no statistical significance for association between gender and severity of WSLs and there was a statistical significance for association of age group and severity of WSLs in upper lateral incisors and canines (p

Chronological age conveys only a rough approximation of the maturational status of a person whereas skeletal maturity indicators give a more accurate estimation. Therefore, it is of interest to document the correlation between chronological and skeletal age using CVMI and modified MP3 methods. A total of 39 subjects between the age ranges of 9-16 years were selected for this study. Pre-treatment lateral cephalograms and hand-wrist radiographs of the subjects were used. The skeletal age was analyzed by the Cervical Vertebrae Maturity Index (CVMI) and modified MP3 methods. The data was analyzed with SPSS software version 23.00. Kendall’s Tau correlation test was performed to estimate the correlation between chronological age and skeletal age among the subjects and a linear regression test was also performed. Positive correlation was found between chronological age and skeletal age assessed by CVMI method (r= 0.398) and modified MP3 method (r=0.382) with p value

The present study aims to assess the correlation between maturation stages of the middle phalanx of the third finger and calcification stages mandibular of the third molar in 9-16 years old children in the South Indian population. A total of 39 subjects between the age of 9-16 years were included for this study. Their pretreatment digital panoramic and hand-wrist radiographs were retrieved from the DIAS software provided by Saveetha Dental College and Hospital, Chennai, TamilNadu, India. These records were analyzed with the help of Demirjian index, used for mandibular third molar maturation stage, and Modified MP3 method, used for Middle phalanx maturation stage. Pearson's Chi-Square tests were done to analyze the association between Mp3 stages and mandibular third molar calcification stages. The statistical tests were performed in SPSS software. The results of this study showed that there is a statistically significant association between Demirjian index and modified MP3 stages in both females (p

Introduction: Trajectories of force determines the trabecular pattern of bone. In transverse malocclusions, force trajectories are altered which can affect the trabecular pattern. Hence, it is important to study the trabecular pattern associated with transverse malocclusions. Aim: Assessment of trabecular pattern changes on Intraoral Periapical Radiographs (IOPA) in subjects with dental crossbites using fractal analysis. Materials and Methods: This cross-sectional study was conducted in Department of Orthodontics at Saveetha Institute of Medical and Technical Science, Chennai, Tamil Nadu, India, from October 2021 to December 2021. The study involved 30 IOPAs in 15 patients with unilateral first mandibular molar teeth in crossbite. The sample was divided into two groups. Group A has 15 IOPAs of mandibular molars in crossbite side, group B has 15 IOPAs of mandibular molars not in crossbite. A region of interest (ROI) of 256×256 pixels were selected between the roots of the premolar and mandibular molars and converted into an 8-bit image with image J software. Fractal dimensional analysis with box counting was used to assess trabecular perimeter and the trabecular number. Normality of the data was assessed by Shapiro-Wilk test and an Independent t-test was carried out to find intergroup differences. Results: Shapiro-wilk tests p-values were not significant (p-value >0.05) for both groups ensuring normality of data. The mean fractal dimensions measured were 0.867 (group A) and 1.213 (group B). The mean trabecular perimeter in group A was 86.37±29.31 whereas in group B it was 194.62±43.26 and the intergroup difference was significant (p-value