Occlusal interference during mastication can cause pathological tooth mobility
Occlusal interference during mastication can cause pathological tooth mobility
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DOI：
10.1111/j.1600-0765.2005.00856.x
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发表时间：
2006-06-01
影响因子：
3.5
通讯作者：
Yatani, H
中科院分区：
文献类型：
--
作者：
Ishigaki, S;Kurozumi, T;Yatani, H
尽管关于牙齿活动度和非工作接触之间的关系的证据很少，但咬合的评价主要是通过检测攻丝运动和侧向偏移期间的过早和/或非工作接触来进行的。本研究假设咀嚼时咬合接触对牙周组织有潜在的损伤。受试者包括73名成年人，年龄20-29岁（39名男性和34名女性），牙齿完整，无正畸治疗或牙周病史。每名受试者的闭合咀嚼模式被分为三组的咀嚼偏离指数，它描述了偏离正常咀嚼模式在5 mm内的牙尖交错位置。结果表明，咀嚼运动偏离正常咀嚼运动，可增加特定类型牙齿的活动度，提示咀嚼运动与牙齿活动度之间存在一定的关系，并提示牙周组织检查需要进行咬合功能评价。咬合评估与边界和轻敲运动可能是不够的，和功能性咬合评估在咀嚼运动可以在临床上有用的用于评估牙周组织。
Despite little evidence regarding the relationship between tooth mobility and nonworking contact, the evaluation of occlusion is performed mainly by the detection of premature and/or nonworking contacts during tapping movements and lateral excursion. The hypothesis of this study is that occlusal contact during mastication is potentially traumatic to periodontal tissue. It clarifies the relationship between chewing patterns and the status of periodontal tissue.Subjects included 73 adults, 20-29 years of age (39 men and 34 women), with complete sets of teeth and no history of orthodontic treatment or periodontal disease. The closing chewing patterns of each subject were classified into three groups by the Masticatory Deviation Index, which depicts the deviation from the normal chewing patterns within 5 mm from the intercuspal position. Periotest (R) was used to diagnose teeth mobility and the values were compared among the three groups.The present study indicates that the chewing movements which deviated from the normal chewing movements increased the mobility of specific types of teeth.The results of this study imply a relationship between chewing movements and tooth mobility and indicate that functional evaluation of occlusion is necessary for the examination of periodontal tissue. Occlusal evaluation with border and tapping movements might be insufficient, and functional occlusal evaluation during chewing movements can be clinically useful for using to evaluate periodontal tissue.