ARTICULAR REMODELING IN ADULT HUMAN TEMPOROMANDIBULAR JOINT
ARTICULAR REMODELING IN ADULT HUMAN TEMPOROMANDIBULAR JOINT
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DOI：
10.1002/aja.1001150108
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发表时间：
1964-01-01
影响因子：
--
通讯作者：
JOHNSON, LC
中科院分区：
文献类型：
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作者：
MOFFETT, BC;ASKEW, HC;JOHNSON, LC
关节软骨可以充分增殖，改变关节的轮廓，使其在形态上适应各种机械应力。根据组织学标准，这种重塑被分为三种类型，然后应用于颞颌关节。这个关节有一种纤维型的关节组织，在受荷区在出生后转化为纤维软骨。软骨下骨组织的厚度和细胞密度以及内部重建量因关节的不同而不同。这些变化似乎与接头中的机械应力分布有关。结论：颞下颌关节呈现以下改建趋势：前部、结节内侧和下颌窝顶呈进行性改建，后部和结节外侧部呈退行性改建。椎间盘穿孔导致穿孔部位的髁突进行性改建和结节退行性改建。随着关节组织的分解，关节重塑逐渐合并成骨性关节炎。失代偿或病理性重塑的最终结果是：髁突变平变大，结节吸收，椎间盘穿孔，关节面不平整。如果不修复或替换牙列，就会发生高比率的颞下颌骨改建，这种改建很可能会持续到骨关节炎。
Articular cartilage can proliferate sufficiently to alter the contours of joints, allowing them to adapt morphologically to various mechanical stresses. This remodeling has been classified into three types based on histologic criteria which were then applied to the temporomandibular joint. This joint has a fibrous type of articular tissue which is converted postnatally into fibrocartilage in the loaded areas. The thickness and cell population of this tissue, and the amount of internal reconstruction in the subchondral bone vary from one part of the joint to another. These changes appear related to the distribution of mechanical stresses in the joint. Conclusions drawn are The temporomandibular joint shows the following remodeling trends: progressive remodeling on the anterior part of the condyle, medial part of the tubercle and roof of the mandibular fossa; regressive remodeling on the posterior part of the condyle and on the lateral part of the tubercle. A perforation in the disc causes progressive remodeling on the condyle and regressive remodeling on the tubercle at the perforation site. Articular remodeling merges gradually into osteoarthritis as the articular tissue breaks down. The net effect of remodeling that has become uncompensated or pathologic is: condyle flattened and enlarged, tubercle resorbed, disc perforated and articular surfaces uneven. If the dentition is not restored or replaced, a high rate of temporomandibular remodeling occurs which will probably continue into osteoarthritis.