臼齿
撞击
医学
牙周组织
牙科
闭塞
口腔正畸科
咀嚼力
牙弓
下颌弓
下颌第二磨牙
下颌骨(节肢动物口器)
拱门
外科
属
土木工程
工程类
生物
植物
作者
Po-Sung Fu,Jen–Chyan Wang,Cheng-Hwei Chen,Ta‐Ko Huang,Chin-Huang Tseng,Chun-Cheng Hung
出处
期刊:Angle Orthodontist
[The Angle Orthodontist]
日期:2012-05-01
卷期号:82 (3): 565-571
被引量:14
摘要
Simultaneous impactions of first, second, and third permanent molars comprises a very rare clinical situation with diverse therapeutic approaches and is a difficult challenge for dentists. Early diagnosis and treatment of eruption disturbances contributes to optimal outcomes. This article reports the treatment of a teenager with severe impaction of right mandibular first, second, and third molars, which hinders the masticatory function and dental arch integrity. A decision-making process and a simple orthodontic technique are described. To shorten the treatment time and simplify the procedures, the impacted right mandibular third and second molars were orthodontically uprighted with an innovative tip-back cantilever. Subsequently, the deeply impacted right mandibular first molar was extracted with minimal obstacles. The combined surgical-orthodontic approach resolved a challenging clinical problem and eliminated the need for prosthetic or dental implant replacement of the impacted molars. Good occlusion, normal function, and a healthy periodontium of the patient were also achieved.
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