Miller V J, Smidt A
Department of Prosthodontics, Hebrew University Hadassah School of Dental Medicine, Jerusalem, Israel.
J Oral Rehabil. 1996 Oct;23(10):712-5.
The relationship of age to condylar asymmetry varies for different groups of patients with temporomandibular disorders. Those with a problem of myogenous origin show a parabolic curve, while those with an arthrogenous problem show a linear relation. A group of control subjects with no signs or symptoms of temporomandibular disorders showed no correlation between age and asymmetry index. A group of 17 patients with no signs or symptoms of temporomandibular disorders but with Angle's Class II Division 2 malocclusions and deep overbite, was studied for an age-condylar asymmetry relationship. Only patients with a maximum of one missing tooth, other than third molars, were included. As a control, a group of 22 individuals with an Angle's Class I occlusion was considered. The same exclusion criteria as above was applied to this group. Age-asymmetry indicies were plotted for both groups. No correlation between age and asymmetry index was found in either group (coefficients of determination 0.054 and 0.002, respectively). This may support the conclusion that Angle's Class II Division 2 malocclusion with deep overbite is not a major factor in the aetiology of these disorders.
在不同组颞下颌关节紊乱病患者中，年龄与髁突不对称性的关系有所不同。肌源性问题患者呈现抛物线形曲线，而关节源性问题患者呈现线性关系。一组无颞下颌关节紊乱病体征或症状的对照受试者，其年龄与不对称指数之间无相关性。对一组17例无颞下颌关节紊乱病体征或症状，但患有安氏II类2分类错牙合及深覆牙合的患者进行了年龄与髁突不对称关系的研究。仅纳入除第三磨牙外最多缺失一颗牙齿的患者。作为对照，考虑了一组22例安氏I类牙合的个体。该组应用与上述相同的排除标准。绘制了两组的年龄不对称指数图。两组均未发现年龄与不对称指数之间存在相关性（决定系数分别为0.054和0.002）。这可能支持以下结论：伴有深覆牙合的安氏II类2分类错牙合不是这些疾病病因中的主要因素。
