伊朗人群中成人Ⅲ类错牙合畸形的组成部分。
Components of Adult Class III Malocclusion in an Iranian Population.
作者信息
Koodaryan Roodabeh, Rafighi Ali, Hafezeqoran Ali
机构信息
Post-graduate student, Department of Prosthodontics, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
出版信息
J Dent Res Dent Clin Dent Prospects. 2009 Winter;3(1):20-3. doi: 10.5681/joddd.2009.006. Epub 2009 Mar 16.
BACKGROUND AND AIMS
Class III malocclusions are considered complex and difficult orthodontic problems to diagnose and treat. The purpose of this study was to investigate the morphologic characteristics of the craniofacial complex of adults with Class III malocclusion in an Iranian population.
MATERIALS AND METHODS
Lateral cephalometric radiographs of 50 patients with Class III malocclusion (20 males and 30 females; age range of 18-27 years) were selected on the basis of molar relationship, concave profile and an overjet of ≤ 0 mm. The standard values of 19 soft tissue measurements were determined using McNamara, Burstone and Viazis methods.
RESULTS
Adults with Class III malocclusion exhibited distinct craniofacial morphologic characteristics manifested by a com-bination of retrusion of maxilla and protrusion of mandible.
CONCLUSION
The most prevalent component was mandibular prognathism, normal maxilla and LAFH on the basis of the component analysis.
背景与目的
Ⅲ类错颌畸形被认为是诊断和治疗复杂且困难的正畸问题。本研究的目的是调查伊朗人群中成年Ⅲ类错颌畸形患者颅面复合体的形态特征。
材料与方法
根据磨牙关系、凹面型和覆盖≤0毫米，选取50例Ⅲ类错颌畸形患者（20例男性和30例女性；年龄范围18 - 27岁）的头颅侧位X线片。采用麦克纳马拉、伯斯顿和维亚齐斯方法确定19项软组织测量的标准值。
结果
成年Ⅲ类错颌畸形患者表现出明显的颅面形态特征，表现为上颌后缩和下颌前突的组合。
结论
基于成分分析，最常见的成分是下颌前突、正常上颌和低角面型。
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