The effect of vertical facial height changes in position and angulation of condyles for class i malocclusion after orthodontic treatment

Muslim Yusuf; Hilda Fitria Lubis; Hanifa Maryani Ahmad

Volume : IX, Issue : VII, July - 2020

The effect of vertical facial height changes in position and angulation of condyles for class i malocclusion after orthodontic treatment

Muslim Yusuf, Hilda Fitria Lubis, Hanifa Maryani Ahmad

Abstract :

Introduction: Ortodontic treatment in Class I malocclusion can change the position of molar, occusal plane and mandibular rotation that can lead to the change in vertical facial height. The changes in vertical facial height may have an effect to the changes in condyles position and its angulation. However, the changes in vertical facial height after orthodontic treatment often trigger controversies. The objective of this study is to understand if the change in vertical facial height can affect the position and the angulation of condyle. Methods: this research used a cross sectional methods with 30 sampel from a cephalometry radiograph before and after treatment with and without extraction. Changes in vertical height measured from MP-SN angle, position of condyles measured from distance Co-TC and distance Co-T vertikal. Angulation of condyles measured from Co-T-Tvertikal angle. Result and Discussion : Significant changes were found in vertical facial height without extraction sample (p<0.05). however, there were no significant changes found in vertical facial height with extraction sample (p>0.05) . No significant changes were found in position and angulation of condyle with or without extraction (p>0.05). there were no significant correlation found between the changes in vertical facial height and changes in position and angulation of condyle with or without extraction (r<0.5). Conclusion : Changes in vertical facial height will not give any significant effect in the changes of position and angulation of condyles in Class I malocclusion.