Masticatory performance in children and adolescents with Class I and II malocclusions
Masticatory performance in children and adolescents with Class I and II malocclusions
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DOI：
10.1093/ejo/cji080
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发表时间：
2006-04-01
影响因子：
2.6
通讯作者：
Roldán, S
中科院分区：
文献类型：
--
作者：
Toro, A;Buschang, PH;Roldán, S
目前还不完全清楚咀嚼性能是否会损害更常见的形式的错（即I类和II类）的个人。这项前瞻性研究的目的是建立儿童和青少年咀嚼性能，错（类型和严重程度），年龄，体型和性别之间的关系。共有335人接受了检查，平均年龄为6岁，9岁，12岁和15岁。每个受试者的咬合状态被描述的角度分类和同行评价比率（PAR）指数。咀嚼性能通过使用人造食物的中值粒度（MPS）和粒度分布的宽度来量化。咀嚼性能随着年龄的增长而显著提高。6岁儿童分解食物颗粒的能力（MPS 4.20 mm（2））低于15岁奥尔兹（MPS 3.24 mm（2））。协方差分析表明，年龄差异的性能与身体尺寸的增加。有统计学显着性差异，咀嚼性能之间的儿童与正常？和那些与I类错？之间没有发现差异？正常？和II类错？。性别差异并不能解释咀嚼效能的差异，因此咬合指数并不是咀嚼效能的可靠预测指标。传统的错牙合类型和严重程度的描述显然不能解释大多数儿童和青少年咀嚼性能的变化。
It is not fully understood whether masticatory performance is compromised in individuals with the more common forms of malocclusion (i.e. Class I and Class II). The aim of this prospective investigation was to establish the relationships between masticatory performance, malocclusion (type and severity), age, body size and gender, in children and adolescents. A total of 335 individuals were examined at the average ages of 6, 9, 12 and 15 years. Each subject's occlusal status was described by Angle classification and by the Peer Assessment Ratio (PAR) index. Masticatory performance was quantified by the median particle size (MPS) and the broadness of particle distribution using artificial food.Masticatory performance improved significantly with age. The 6-year-old children were less able to break down the food particles (MPS 4.20 mm(2)) than the 15 year olds (MPS 3.24 mm(2)). Analysis of covariance showed that age differences in performance are related to an increase in body size. There were statistically significant differences in masticatory performance between children with normal occlusion and those with a Class I malocclusion; no differences were found between normal occlusion and Class II malocclusion. Gender differences did not explain the variation in masticatory performance.It is concluded that occlusal indices are not reliable predictors of masticatory performance. Traditional descriptors of malocclusion type and severity apparently cannot explain most of the variation in masticatory performance in children and adolescents.