In-ul Abideen M Zain, Saba Habib, Fizza Hafeez, Sohail Fareed.
Evaluation of Vertical Skeletal Changes Consequent to Maxillary Molars Distalization with Distal Jet Appliance.
Ophthalmol Update Jan ;16(4):908-11.

Objective: to evaluate the mean increase in vertical skeletal pattern that occurs after Distalization by using distal jet appliance in class-II malocclusion patients. It was a Quasi experimental trial At the Department of Orthodontics, Nishtar Institute of Dentistry, de`Montmorency College of Dentistry and Punjab Dental Hospital. Study duration was from June 2014 to January 2017. Methodology: A total of 40 patients were enrolled in this study from multiple centers of Punjab. The recorded data was entered and analyzed using SPSS version 23. Quantitative data like age and baseline measurements (P1) of vertical skeletal pattern (i.e. FMAº , SN.Gnº , SN.MPº ) and after Distalization measurements (P2) were presented in the form of mean ±S.D. qualitative variables like gender were presented in the form of frequency and percentage. A P-value of less than 0.05 will be considered significant. Results: A total of 40 patients with Angle`s class II malocclusion with mean age of 13.15±0.60 years were included in this study. The minimum age was 12 years while maximum age was 14 years. The mean decrease in PTVMax. 1st Molar Centroid was 3.63±0.81mm. The figure showing that maximum number of patients showed decreased at 38mm. The mean increase in PPMax. 1st Molar Centroid was 0.69±0.36mm. The figure showing that maximum number of patients showed an increase of 0.5- 0.75mm. The mean increase in FMA was 1.13±0.81o . The figure showing that maximum number of patients showed an increase of 0.5-1.5 degrees. Conclusion: Our study was focused only on the skeletal changes occurred in vertical pattern of patients who were with low to normal vertical proportions at the start of treatment.

PakMediNet -Pakistan's largest Database of Pakistani Medical Journals - http://www.pakmedinet.com