TITLE:
First Maxillary Molar Position Alteration in Class II Division 1 Malocclusion Treatment with Maxillary Premolar Extraction
AUTHORS:
Elih Sayuti, Bergman Thahar, Eky S. Soeria Soemantri, Hermawan Nagar Rasyid
KEYWORDS:
Anchorage Loss, Mesial Drift, Anterior Retraction, Class II Division 1 Malocclusion
JOURNAL NAME:
Open Access Library Journal,
Vol.3 No.9,
September
20,
2016
ABSTRACT: Treatment of Class II division 1 malocclusion mostly required two maxillary first premolars in order to provide spaces for maxillary anterior teeth retraction. Anterior teeth retraction may cause loss of anchorage. This study aimed at evaluating the effects of anterior teeth retraction towards first maxillary molar loss of anchorage. It was conducted by observing any mesial drifting of first maxillary molar occurred in patients with Class II division 1 malocclusion undergoing treatment with two first maxillary premolar extractions. Material consists of 25 cephalometric films of patients prior to and after orthodontic treatment using Edgewise technique. Cephalometric measurement conducted included S vertical-M1 and FHP-M1. Statistic test used was pairing T-test, showing that p