%0 Journal Article
%T First Maxillary Molar Position Alteration in Class II Division 1 Malocclusion Treatment with Maxillary Premolar Extraction
%A Elih Sayuti
%A Bergman Thahar
%A Eky S. Soeria Soemantri
%A Hermawan Nagar Rasyid
%J Open Access Library Journal
%V 3
%N 9
%P 1-7
%@ 2333-9721
%D 2016
%I Open Access Library
%R 10.4236/oalib.1102936
%X <div style="text-align:justify;">
	<span style="line-height:1.5;">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 </span><span style="line-height:1.5;">using Edgewise
technique. Cephalometric measurement conducted included S vertical-M1 and
FHP-M1. Statistic
test used was pairing T-test, showing that p &lt; 0.05 for
paired data showed non-significant alteration in S vertical-M1 and FHP-M1 measurement prior to and after treatment. It can be concluded that mesial
drifting of maxillary first molars did not occur in orthodontic treatment for
Class II division 1.</span>
</div>
%K Anchorage Loss
%K Mesial Drift
%K Anterior Retraction
%K Class II Division 1 Malocclusion
%U http://www.oalib.com/paper/5271653