First Maxillary Molar Position Alteration in Class II Division 1 Malocclusion Treatment with Maxillary Premolar Extraction
| Autor: | Elih Sayuti, Eky Setiawan Soeria Soemantri, Bergman Thahar, Hermawan Nagar Rasyid |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Orthodontics
Molar business.industry Dentistry 030206 dentistry 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure stomatognathic system Premolar Medicine Class II division 1 malocclusion Maxillary molar In patient 030212 general & internal medicine business Anterior teeth After treatment |
| Zdroj: | OALib. :1-7 |
| ISSN: | 2333-9705 2333-9721 |
| DOI: | 10.4236/oalib.1102936 |
| Popis: | 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 < 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. |
| Databáze: | OpenAIRE |
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