【摘要】 目的:测试人颞下颌关节(Temporomandibular Joint,TMJ)软骨不同解剖区域的弹性模量,分析颢下颌关节病的力学致病机理。方法:通过生物力学的研究手段,测量了8个TMJ软骨的弹性模量(E)及厚度(H),用SPCC/PC+软件进行统计分析。结果:关节软骨各区域中关节窝前斜面弹性模量最大、厚度最薄(E=23.94±9.95Mpa,H=0.543±0.140mm);而髁突后斜面弹性模量最小、软骨最厚(E=16.90±9.86Mpa,H=0.936±0.325mm)。未发现弹性模量与厚度之间有明显的相关关系。结论:认为TMJ软骨各区弹性模量的差异足后天功能刺激所致,其抗力能力不仅依赖厚度因素。更多还原

【Abstract】 The initial purposes were to detect Elastic Modulus (E) and thickness of normal TMJ cartilage ofcadaver material and analyse the biomechanics mechanism of TMJ diseases. Methods: Eight TMJ cadavers were measured using the Indentation Test. Results: Its show that the highest E appears in the anterrior slope of glenoid fossa with thethinnest cartilage, while the lowest E in the posterior region of condyle with the thickest cartilage (E=23.94± 9.95Mpa,H=0.543± 0.140mm, E=16.90±9.86Mpa, H=0.936±0.325mm). No correlation was found between E and cartilagethickness. Conclusion: It suggestey that the E discrepancies of the different regions in the TMJ cartilage was acquired from the functional stimulation after birth.更多还原