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

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.

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.

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.

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.