Dentistry

Effect of class II extractions and functional appliance treatment on smile esthetics

25^th Global Dentists and Pediatric Dentistry Annual Meeting

April 25-26, 2019 | Rome, Italy

Umair Shoukat

Aga Khan University and Hospital, Pakistan

Scientific Tracks Abstracts: Dentistry

Abstract:

Introduction: Class II malocclusion treatment may involve functional appliance therapy or extractions of teeth. The objectives of this study were to compare smile esthetics between these groups by measuring various smile variables and the esthetic perceptions by three panels of raters.

Materials & Methods: A cross sectional study was performed with 66 patients equally divided into functional appliance (FA) and upper first premolars extraction (PME) groups. Eight smile variables were measured on posttreatment photographs using photoshop software (Adobe Systems, San Jose, Calif). 10 laypersons, general dentists and orthodontic residents performed subjective evaluations of smiles using visual analog scale. Mann-Whitney U test was applied to compare smile variables between groups. Kruskal-Wallis test was used to compare esthetic scores (ES) among raters. Multiple linear regression analysis was applied to determine smile variables associated with ES.

Results: Statistically significant results found for arch form index (AFI) (p < 0.001), buccal corridor ratio (BCR) (p = 0.046) and visible dentition width ratio (VDWR) (p = 0.019) between PME and FA groups. Kruskal-Wallis test showed significant differences in ES among raters for PME (p = 0.004) and FA (p < 0.001) groups. Simple linear regression showed significant associations of ES with age (p = 0.002), VDW (p = 0.023), and BCR (p = 0.006). Multiple linear regression analysis showed age (p = 0.008) and VDWR (p = 0.021) were significantly associated with ES.

Conclusions: AFI, BCR and VDWR were higher in PME group. Panel of raters gave greater ES for the FA group.

Biography :

Umair Shoukat is a designated Post Graduate Trainee in the Department of Orthodontics at Aga Khan University Hospital Karachi Pakistan. He has done his Bachelors in Dentistry from Fatima Jinnah Dental College in 2015. He has received distinctions in different subjects and honored with five gold medals from University of Karachi. He is currently working on various research projects including a randomized controlled trial targeting various motivational methods in orthodontic patients to improve their compliance which is been funded by the university research grant. His research work is under review of various international journals. He is interested to work in the area of orthodontics.

E-mail: g10g11g27@gmail.com