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激光实时全息法测量前磨牙受力研究

任贤云,刘文康,熊秉衡,王正荣,许昭永,王崇真,李黎静,张永安,谢静,何红

ACTA ACADEMIAE MEDICINAE MILITARIS TERTIAE（2004）

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Abstract
目的探讨前磨牙在咀嚼功能作用下的受力状态.方法按照天然前磨牙尖的大小,放大10倍,测试的模型用甲基丙烯甲脂(0号造牙粉)翻制而成.把测试的模型放在激光实时测量系统上进行测量.结果在前磨牙牙尖部位及牙颈部位有明显的应力集中.牙尖部位受力较大,牙颈部位次之.折裂大多从两牙尖的正中裂开,折裂方式与临床观察相吻合.并对此进行了相应的分析.结论当前磨牙和磨耗成两个牙尖的磨牙时,功能咀嚼容易折裂.
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