| 不同前牙合型者咀嚼运动时关节与切点轨迹的特征 |
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| 引用本文： | 周崇阳,冯海兰.不同前牙合型者咀嚼运动时关节与切点轨迹的特征[J].北京大学学报(医学版),1996(4). |
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| 作者姓名： | 周崇阳 冯海兰 |
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| 作者单位： | 北京医科大学口腔医学院修复科 |
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| 摘 要： | 目的：研究不同前型者下颌关节点和切点轨迹的特征。方法：用新型下颌三维运动轨迹描记仪ＭＴ－１６０２测量了５５名不同前牙覆覆盖者下颌咀嚼运动关节与切点的轨迹，并进行了比较分析。结果：下颌双侧关节咀嚼轨迹与切点轨迹之间具有普遍的正相关性；深覆者关节与切点轨迹的侧向幅度均小于正常（Ｐ＜０．０１）；额状面轨迹窄于正常（Ｐ＜０．０１）；前牙深覆盖者的轨迹与正常者无差别（Ｐ＞０.０５）。结论：深覆是影响下颌咀嚼运动形态的主要因素，修复时应尽量避免前牙深覆的出现。
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| 关 键 词： | 咀嚼， 颞下颌关节／生理学，运动范围，关节，错 |
THE CHARACTERISTICS OF CHEWING TRACES OF CONDYLES AND INCISIVE POINTS OF PERSONS VARIED ANTRIOR OCCLUSAL PATTERNS |
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| ZNOU Chongyang, FENG Haila.THE CHARACTERISTICS OF CHEWING TRACES OF CONDYLES AND INCISIVE POINTS OF PERSONS VARIED ANTRIOR OCCLUSAL PATTERNS[J].Journal of Peking University:Health Sciences,1996(4). |
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| Authors: | ZNOU Chongyang FENG Haila |
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| Abstract: | Objective:To determine the characteristic chewing patterns of persons with different oc- clusal patterns;Methods:The supersonic run-time mandibular movement recorder MT-1602 was used and 55 volunteer students with normaI occlusion,deep overbite or deep overjet were tested.Results:The persons with deep overbite had more shallow and vertical chewing patterns than normal ones(P< 0.01),while the chewing patterns of deep overjet persons had no differences with that of the normal (P> 0.05).The chewing traces of both condylar points had a significant correlation with that of incisive point.Conclusion:Deep overbite of anterior teeth is the rnain factor affecting the mandibular chewing movements,Therefore,the deep overbite of anterior teeth should be avoided in prosthodontic treat- ments to prevent from TMJDS. |
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| Keywords: | Headings Mastication Temporomandibular joint/physiol Range of motion articular Malocclusion |
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