Relationship of Nasolabial Angle with Maxillary Incisor Proclination and Upper Lip Thickness in North Indian Population.

Aim: The aim of the study was to evaluate the relationship between nasolabial angle (NLA) with maxillary incisor proclination (U1-NA) and upper lip thickness (ULT). Materials and methods: Pretreatment lateral cephalometric radiographs of 120 patients were taken, and NLA, U1-NA, and basic ULT measurements were obtained for each patient. Descriptive statistics were calculated for all the variables involved in the study. The correlation was found using the Pearson correlation coefficient (r) test. p < 0.01 was considered statistically significant. Results: The mean values of NLA, upper incisor proclination, and ULT were found to be 91.38° ± 7.10°, 34.21° + 5.17°, and 15.38 ± 1.76 mm, respectively. r (r = -0.583) was found between NLA and upper incisor proclination and (r = -0.040) for NLA and ULT. Conclusion: There is a statistically significant relationship between NLA and U1-NA. How to cite this article: Garg H, Khundrakpam D, Saini V, et al. Relationship of Nasolabial Angle with Maxillary Incisor Proclination and Upper Lip Thickness in North Indian Population. Int J Clin Pediatr Dent 2022;15(5):489-492.

Intermolar and Intercanine width Changes among Class I and Class II Malocclusions Following Orthodontic Treatment.

INTRODUCTION: Arch width discrepancy is important to predict treatment outcome as it affects the space availability and stability of dentition. Negligence to maintain arch form has been recognized as a prime cause of relapse. AIM AND OBJECTIVE: To assess the differences in intermolar and intercanine distances among class I, class II division 1, and class II division 2 malocclusion following orthodontic treatment. MATERIALS AND METHODS: The study was performed on models of pre- and posttreatment from records of 100 patients visiting the Department of Orthodontics, MMCDSR using a digital Vernier caliper to measure intermolar and intercuspid distance. The sample comprised of both male and female patients of age group 14-25 years divided into three different groups, group I-class I malocclusion, group II-class II division 1 malocclusion, and group III-class II division 2 malocclusion. The results obtained were subjected to statistical analysis. Group II showed higher pretreatment intercanine width than group I whereas group III had lower pretreatment intercanine width than both group I and group II. Group I showed higher pretreatment intermolar width than group II. Pretreatment intercanine width was higher in group II compared with group I whereas it was lower for group III when compared with group I for the mandible. HOW TO CITE THIS ARTICLE: Garg H, Khatria H, Kaldhari K, et al. Intermolar and Intercanine width Changes among Class I and Class II Malocclusions Following Orthodontic Treatment. Int J Clin Pediatr Dent 2021;14(S-1):S4-S9.