Teng S, Xu Y, Cheng M, Li Y
Department of Oral Anatomy and Physiology, West China University of Medical Sciences, Chengdu.
J Craniomandib Disord. 1991 Spring;5(2):107-14.
The tensile properties of TMJ discs in dogs were investigated using soft-tissue tensile and stress-relaxation tests. The data obtained suggested that (1) the mediolateral tensile stiffness (199.7 and 234.0 MPa), tensile strength (46.73 and 69.99 MPa), and equilibrium moduli (30.0 and 30.1 MPa) of anterior and posterior bands of the disc, respectively, were much greater than those of the middle part (46.6, 14.71, and 18.4 MPa, respectively); (2) the difference in fracture strain of various parts was not significant; (3) the physiologic strain region of the discs was about 4%; and (4) the properties of low stress/relaxation rate and nonlinear relationship of the instantaneous elastic response to various strains may represent lower permeability of TMJ discs.
采用软组织拉伸和应力松弛试验研究了犬颞下颌关节盘的拉伸性能。获得的数据表明：(1) 关节盘前带和后带的内外侧拉伸刚度（分别为199.7和234.0兆帕）、拉伸强度（分别为46.73和69.99兆帕）以及平衡模量（分别为30.0和30.1兆帕）远大于中间部分（分别为46.6、14.71和18.4兆帕）；(2) 各部分的断裂应变差异不显著；(3) 关节盘的生理应变区域约为4%；(4) 低应力/松弛率以及瞬时弹性响应与各种应变的非线性关系特性可能代表颞下颌关节盘的低渗透性。
