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首页> 外文期刊>Journal of Clinical and Diagnostic Research >Digital Evaluation of Functional Occlusion Parameters and their Association with Temporomandibular Disorders
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Digital Evaluation of Functional Occlusion Parameters and their Association with Temporomandibular Disorders

机译：功能闭塞参数的数字评估及其与颞下颌疾病的关系

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Context: Dental researchers are contradictory in their opinion on the role of occlusion in TMD. Occlusal evaluation of both conventional and digital methods in TMD patients will provide the accurate information about the factors accountable for occlusal instability. Identifying the factors responsible will facilitate precise diagnosis and treatment for TMD.Aim: The Aim of the study was to determine the dynamic occlusal parameters strongly associated with the etiology of Temporomandibular disorders.Material and Methods: Study group consisted of 100 patients; it included 50 patients with normal TMJ(Group I) and remaining 50 patients had a minimum of one positive sign or symptom of Temporomandibular disorder (GroupII). The patient?s dynamic occlusal contacts were evaluated by both conventional and digital methods. The Articulating paper was utilized for conventional occlusion analysis. During conventional analysis centric, lateral and protrusive interferences were evaluated along with loss of vertical dimension. Digital occlusal analysis was performed with T-Scan III. Clusion time, disclusion times were recorded for both groups. Chi-square and Student?t? statistical analyses were performed to ascertain the association and statistically significant difference between the groups using SPSS19.Results: Group II patients predominantly (66%)had Group-function occlusion compared to Group I subject. Centric slide more than 2 mm found to have strong influence (P value 0.008) on the etiology of TMD. Among the occlusal interferences evaluated balanced side interferences had a strong correlation with TMD with P-value of 0.003. Working side interferences, protrusive interferences had a p-value of 0.157, 0.826 respectively, indicating weak association. T-Scan analysis showed Group I had 0.689, 0.9136, 0.7952, 0.9794 seconds of clusion, left, right, protrusive disclusion time respectively compared to corresponding 1.862, 1.7995, 1.6978, 1.9296 seconds for Group II. Statistically significant difference (p=0.05) was found between the mean values of both groups.Conclusion: Among the dynamic occlusal parameters evaluated centric slide and balancing side interferences were found to be highly influential in TMD etiology. TMD patients had prolonged clusion and disclusion times compared to healthy TMJ patients.
机译：上下文：牙科研究人员在阻塞在TMD中的作用方面存在矛盾。在TMD患者中对传统方法和数字方法进行的咬合评估将提供有关造成咬合不稳定的因素的准确信息。目的：本研究的目的是确定与颞下颌疾病的病因密切相关的动态咬合参数。其中包括50例TMJ正常的患者（第I组），其余50例至少有一个颞下颌疾病阳性症状或症状（第II组）。通过常规方法和数字方法评估患者的动态咬合接触。咬合纸用于常规咬合分析。在常规分析过程中，评估了中心，横向和突出干扰以及垂直尺寸的损失。使用T-Scan III进行数字咬合分析。记录两组的聚集时间，消散时间。卡方和学生？使用SPSS19进行统计分析以确定各组之间的关联和统计学上的显着差异。结果：与I组受试者相比，II组患者中主要（66％）具有组功能闭塞。发现超过2 mm的中心滑动对TMD的病因有很强的影响（P值0.008）。在所评估的咬合干扰中，平衡的侧向干扰与TMD密切相关，P值为0.003。工作侧干扰和突出干扰的p值分别为0.157和0.826，表明关联较弱。 T-扫描分析显示，与第二组相应的1.862、1.7995、1.6978、1.9296秒相比，第一组分别具有0.689、0.9136、0.7952、0.9794秒的包容，左，右，突出性消散时间。两组平均值之间存在统计学差异（p = 0.05）。结论：在评估的动态咬合参数中，中心滑动和平衡侧向干扰对TMD病因学有很大影响。与健康的TMJ患者相比，TMD患者的入选时间延长。

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