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Background: The subject's inherent growth pattern can be an effective factor in characteristics of smile. More vertical growth in the posterior maxilla than in the anterior maxilla could result in a changed relationship between the occlusal plane and the curvature of the lower lip upon smile. In order to broaden the understanding of how smile gets affected by growth pattern and the underlying hard tissues, the present study was undertaken to compare smile in various growth patterns, to determine sexual dimorphism, if any; as well as to correlate smile with underlying hard tissues., Methods: One hundred and fifty subjects were selected amongst the students in the Dental Institute and from the outpatient department of Department Orthodontics and Dentofacial Orthopedics. Sample selected for the study ranged in the age group of 17 to 25 years. Selected individuals were subjected to lateral head cephalometric radiography in the Department of Oral Medicine and Radiology and videography. Cephalograms were traced and the subjects were divided into horizontal, average, and vertical growth pattern on the basis of GoGn-SN, lower anterior facial height, and Jaraback's ratio. The video clip was downloaded to obtain frame of posed smile. Cephalometric and photographic measurements were recorded and subjected to statistical analysis., Results: The mean values of smile parameters were significantly higher in males as compared to females irrespective of the growth pattern. The mean incisal display, interlabial gap, lower lip to incisal edge distance, upper vertical lip length, and occlusal plane angle was highest in both males and females of vertical facial growth pattern group; whereas, the smile index, posterior corridor (left and right) were less in vertical facial growth pattern group in both males and females. Thus, the parameters in vertical dimension were increased in vertical growers whereas, the parameters in transverse dimension decreased., Conclusions: The facial growth pattern has significant influence on the parameters of smile along with definite sexual dimorphism. The angular and linear parameters, except saddle angle and lower incisor to NB (linear and angular), influenced smile.

Background: Accurate diagnosis of dental maturation help in diagnosis, treatment planning, and timing in orthodontics and dentofacial orthopedics., Aim and Objective: The present study is undertaken to compare and correlate chronological age and dental age of patients with average, vertical, and horizontal facial types, and to find out any sex difference in dental age in different growth patterns and to evaluated the reliability of Willem's method in Indian population., Materials and Methods: Subjects in the age group of 8-10 years were screened from Out Patients Department of Orthodontics and Dentofacial Orthopedics and from the various school of the City, were subjected to cephalometric radiography and orthopentomograms. Angular and linear measurements used included;-SN Go-Gn angle, J.R. (Jarabak ratio) and LAFH (lower anterior facial height), to group total sample of 150 children. Group 1 (average grower), Group 2 (vertical grower), and Group 3 (horizontal grower). Then dental age for each child in different group was calculated from OPG of each subject and compared with chronological age using Student t-test., Results: The results suggest a difference in dental age in subject with vertical and horizontal growers. Vertical grower showed earlier maturation compared to horizontal growth patterns. There was insignificant difference present when vertical grower and horizontal grower were compared with average growth pattern. Insignificant difference was found in dental age between males and females when compared to same growth pattern., Conclusion: Subjects with vertical growth pattern matured early than having the horizontal growth pattern in the same chronological age.