PDF(Pubmed)
Abstract：
To determine the level of dental attrition and its relation to signs of TMJ dysfunction adding to condylar alterations analyzed by conventional TMJ Tomography and to propose the correlation between dental attrition and signs of TMJ dysfunction and condylar changes. Patients for the study were selected from the regular outpatient Department of Oral Medicine, Diagnosis and Radiology, Rajah Muthiah Dental College and Hospital, Annamalai University, Chidambaram, with performed criteria. The radiographic examination of TMJ is performed by the PLANMECA OPG machine using the tomographic program. Statistical analysis was performed using a Chi-square test to determine the relation between attrition and temporomandidular disorders [TMD] signs and symptoms. The study group comprises 60 subjects who are having dental attrition, and they are divided into three groups according to their age: Group I, 20-40 age; Group II, 41-60 age; Group III, more than 60 age 80% of the samples had one or more tooth with significant attrition with grades of two or more on a 0-4 scale The prevalence of changes in condylar morphology was more in individuals above 40 yrs (33.33%) as compared to those below the age of 40 with a total prevalence of 41.67%. The most common symptom reported is tooth sensitivity, joint sounds, and muscle tenderness. The last reported are scalloped tongue, buccal mucosa ridging, referred pain, and limitation of mouth opening. Out of the 25 subjects who showed condylar changes, 10 subjects had symptoms of TMD. The symptoms reported are strain in the mouth opening, tenderness in jaw movements, and TMJ clicking sounds. Attrition is not a predictable sign of TMJ dysfunction, yet a finite association was defined between attrition and signs and symptoms of TMJ dysfunction. Studies involving larger samples compared with additional radiographic modalities are recommended.
摘要：
确定牙齿磨损的水平及其与TMJ功能障碍体征的关系，再加上通过常规TMJ断层摄影术分析的髁突改变，并提出牙齿磨损与TMJ功能障碍和髁突变化体征之间的相关性。本研究的患者从口腔内科的常规门诊中选择，诊断和放射学，RajahMuthiah牙科学院和医院，Annamalai大学,奇丹巴拉姆,与执行的标准。TMJ的射线照相检查由PLANMECAOPG机使用断层摄影程序进行。使用卡方检验进行统计分析，以确定减员与颞叶紊乱[TMD]体征和症状之间的关系。研究组由60名患有牙齿磨损的受试者组成，他们根据年龄分为三组：第一组，20-40岁；第二组，41-60岁；第三组，60岁以上的样本中有80％的牙齿有一个或多个牙齿，其磨损程度在0-4级上为2级或更高。与40岁以上的个体相比，髁突形态变化的患病率更高（33.33％）。小于40岁的年龄，总患病率为41.67％。报告的最常见症状是牙齿敏感，联合声音，肌肉压痛.最后报告的是扇形舌头，颊粘膜起皱，提到疼痛，和张嘴的限制。在25名表现出髁突变化的受试者中，10名受试者有TMD症状。报告的症状是张口劳损，下颌运动中的压痛，和TMJ点击声音。磨耗不是颞下颌关节功能障碍的可预测标志，然而，减员与TMJ功能障碍的体征和症状之间存在有限的关联。建议与其他射线照相方式相比，涉及较大样本的研究。
