Development of Horizontal Tooth Wear in Maxillary Anterior Teeth from Five to 18 Years of Age
Development of Horizontal Tooth Wear in Maxillary Anterior Teeth from Five to 18 Years of Age
复制标题
5~18岁上颌前牙水平磨损的发展
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
J. Vartiovaara
中科院分区：
文献类型：
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作者：
Marjatta Nyström;Mauno Könönen;Satu Alaluusua;M. Evälahti;J. Vartiovaara
对5岁乳牙期至18岁青年期上颌前牙水平磨耗面的大小进行了纵向研究。通过平面测量法，我们计算了39名健康的、未接受过正畸治疗的、具有良好形态学咬合的受试者在5岁、10岁、14岁和18岁时牙模上的磨损面积。对于年轻人，我们还研究了磨损量与报告的功能异常、最大咬合力、唾液缓冲能力、唾液流速和一些头影测量变量之间的相关性。所有前牙磨损面的大小随年龄的增长而增加。六个前乳牙在5岁时的总磨损面积与其永久继承者在14岁（r = 0.44）和18岁（r = 0.39）时的总磨损面积之间存在显著相关性。然而，对于一个人来说，5岁时的牙齿磨损对年轻人的牙齿磨损具有较低的预测价值，而14岁时的牙齿磨损则可以很好地预测（r = 0.89）。在18岁时，牙齿磨损和背景因素之间的相关性最高的是最大前牙咬合力（r = 0.44）和下颌角的大小（r = -0.31）。前牙的磨损与报告的功能异常在年轻的成年人。
Sizes of horizontal wear facets of maxillary anterior teeth were studied longitudinally from the primary dentition at age five to the young adult dentition at the age of 18 years. By a planimetric method, we calculated the wear areas on dental casts taken at the ages of five, ten, 14, and 18 years from the dentition of 39 healthy, orthodontically untreated subjects with good morphological occlusion. For young adults, we also studied the association between the amount of wear and reported parafunctions, maximal bite force, salivary buffer capacity, salivary flow rate, and some cephalometric variables. Size of wear facets on all anterior teeth increased with age. Significant correlations were found between the total wear areas of the six anterior primary teeth at five years of age and those of their permanent successors at age 14 (r = 0.44) and 18 (r = 0.39). For an individual, tooth wear at five years of age was, however, of low predictive value for tooth wear in young adulthood, whereas tooth wear at 14 years of age predicted it well (r = 0.89). Highest correlations between tooth wear and background factors at 18 years of age were found for maximal anterior bite force (r = 0.44) and for the size of the gonial angle (r = -0.31). Wear of anterior teeth was not associated with reported parafunctions in young adulthood.