Sari S, Sonmez H
Department of Pedodontics, Faculty of Dentistry, University of Ankara, Besevelr-Ankara, Turkey.
J Oral Rehabil. 2002 Jan;29(1):108-12. doi: 10.1046/j.1365-2842.2002.00781.x.
The purpose of this study was to investigate the relationship between temporomandibular joint (TMJ) dysfunction, bruxism and oral parafunctions in the permanent and mixed dentition of Turkish children. Examinations were performed on 59 children (26 girls and 33 boys) without TMJ dysfunction and 123 children (54 boys and 69 girls) with TMJ dysfunction in the mixed dentition. In the permanent dentition 89 children without TMJ dysfunction (45 girls and 44 boys) and 123 children with TMJ dysfunction (69 girls and 54 boys) were inducted into this study. The children with oral parafunctions (bruxism, nail biting and thumb/finger sucking) were determined through questionnaires. The Z-test was used for the analyses of the correlation between variables and differences between the groups. Generally a significant correlation was found between finger/thumb sucking and nail biting and TMJ dysfunction in the mixed dentition and bruxism was observed significantly to be associated with TMJ dysfunction in the permanent dentition (P < 0.05). The evaluation of the results showed that in the mixed dentition groups nail biting was significantly higher in the girls with TMJ dysfunction and finger or thumb sucking was significantly higher in the boys with TMJ dysfunction compared with those without TMJ dysfunction (P < 0.01). In the permanent dentition; bruxism and thumb/finger sucking were significantly higher in girls with TMJ dysfunction higher than those without TMJ dysfunction (P < 0.05). However, thumb/finger sucking was significantly higher in boys without TMJ dysfunction than with TMJ dysfunction (P < 0.05). The results of this study showed that the association of parafunctions and TMJ dysfunction is present in the mixed (thumb/finger sucking and nail biting) and the permanent dentitions (bruxism).
本研究旨在调查土耳其儿童恒牙列和混合牙列中颞下颌关节（TMJ）功能紊乱、磨牙症及口腔副功能之间的关系。对59名无TMJ功能紊乱的儿童（26名女孩和33名男孩）以及123名混合牙列中有TMJ功能紊乱的儿童（54名男孩和69名女孩）进行了检查。在恒牙列中，89名无TMJ功能紊乱的儿童（45名女孩和44名男孩）和123名有TMJ功能紊乱的儿童（69名女孩和54名男孩）纳入本研究。通过问卷调查确定有口腔副功能（磨牙症、咬指甲和吮拇指/手指）的儿童。采用Z检验分析变量之间的相关性以及组间差异。总体而言，在混合牙列中发现吮拇指/手指和咬指甲与TMJ功能紊乱之间存在显著相关性，且在恒牙列中观察到磨牙症与TMJ功能紊乱显著相关（P<0.05）。结果评估显示，在混合牙列组中，与无TMJ功能紊乱的儿童相比，有TMJ功能紊乱的女孩咬指甲情况显著更多，有TMJ功能紊乱的男孩吮手指或拇指情况显著更多（P<0.01）。在恒牙列中，有TMJ功能紊乱的女孩磨牙症和吮拇指/手指情况显著高于无TMJ功能紊乱的女孩（P<0.05）。然而，无TMJ功能紊乱的男孩吮拇指/手指情况显著高于有TMJ功能紊乱的男孩（P<0.05）。本研究结果表明，副功能与TMJ功能紊乱之间的关联存在于混合牙列（吮拇指/手指和咬指甲）和恒牙列（磨牙症）中。
