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成人患者Ⅲ类错颌治疗中下颌第一磨牙的两步法拔除

Two-Step Extraction of the Lower First Molar for Class III Treatment in Adult Patient.

作者信息

Almeida Kélei Cristina de Mathias, Paulin Ricardo Fabris, Raveli Taísa Barnabé, Raveli Dirceu Barnabé, Santos-Pinto Ary

机构信息

Department of Orthodontics and Pediatric Dentistry, Araraquara School of Dentistry, Universidade Estadual Paulista (UNESP), Rua Humaitá 1680, 14801-903 Araraquara, SP, Brazil.

Discipline de Occlusion and Orthodontics, Paulista University (UNIP), SGAS 913, Asa Sul, 71918-000 Brasília, DF, Brazil.

出版信息

Case Rep Dent. 2016;2016:1580313. doi: 10.1155/2016/1580313. Epub 2016 Sep 6.

DOI:10.1155/2016/1580313
PMID:27699072
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5028823/
Abstract

The aim of this article is to describe a case report of Class III malocclusion treatment with lower first molar extraction. The 27-year-old Caucasian male patient presented a symmetric face with a straight profile, hyperdivergent growth pattern, molar and cuspid Class III relation, and an anterior crossbite as well as a mild crowding on cuspids area, in both upper and lower arches and a tendency to posterior crossbite. The treatment was performed by the use of Haas expansion appliance followed by an initial alignment and leveling of the upper and lower arches with a fixed edgewise appliance, extraction of lower teeth aiming the correction of the incisors proclination and end the treatment with a Class I molar relationship. It resulted in a significant change in the patient's profile, dentoalveolar Class III correction, upper arch expansion, leveling and alignment of the upper and lower arches, and improvement of tipping of the upper and lowers incisors. In cases of a dentoalveolar compensation in well positioned bone bases the treatment with fixed appliances is an alternative and extraction of lower teeth is considered.

摘要

本文旨在描述一例采用拔除下颌第一磨牙治疗安氏III类错牙合的病例报告。该27岁的白种男性患者面部对称，侧面轮廓较直，生长型为高度分散型，磨牙及尖牙为安氏III类关系，存在前牙反牙合以及上下牙弓尖牙区轻度拥挤，并有后牙反牙合倾向。治疗过程为使用哈斯扩弓矫治器，随后用固定直丝弓矫治器对上下牙弓进行初步排齐整平，拔除下颌牙齿以矫正前牙前倾，最终建立磨牙I类关系结束治疗。治疗使患者的侧面轮廓有显著改变，牙-牙槽骨安氏III类错牙合得以矫正，上牙弓扩弓，上下牙弓排齐整平，上下前牙倾斜度改善。在牙槽骨位置良好的牙-牙槽骨代偿病例中，固定矫治器治疗是一种选择，且可考虑拔除下颌牙齿。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/3f42253d4be7/CRID2016-1580313.008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/53060491dbd6/CRID2016-1580313.001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/cc54d438a5c5/CRID2016-1580313.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/61e1026ccc65/CRID2016-1580313.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/f82633209a08/CRID2016-1580313.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/3f42253d4be7/CRID2016-1580313.008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/53060491dbd6/CRID2016-1580313.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/75786dcff100/CRID2016-1580313.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/be27982a159a/CRID2016-1580313.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/07468cbe15d7/CRID2016-1580313.004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/cc54d438a5c5/CRID2016-1580313.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/61e1026ccc65/CRID2016-1580313.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/f82633209a08/CRID2016-1580313.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5f0b/5028823/3f42253d4be7/CRID2016-1580313.008.jpg

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Angle Class III malocclusion treated with mandibular first molar extractions.Angle 类 III 错颌畸形，采用下颌第一磨牙拔牙矫治。
Am J Orthod Dentofacial Orthop. 2012 Sep;142(3):384-92. doi: 10.1016/j.ajodo.2011.01.025.
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Am J Orthod Dentofacial Orthop. 2010 Jan;137(1):9.e1-9.e13; discussion 9-11. doi: 10.1016/j.ajodo.2009.05.017.
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Lip morphology changes following orthognathic surgery for Class III malocclusion.正颌手术后 III 类错牙合的唇形态变化。
Angle Orthod. 2010 Mar;80(2):344-53. doi: 10.2319/031209-143.1.
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