Johnson R B, Low F N
Scan Electron Microsc. 1983(Pt 2):643-8.
Transalveolar fibers have been described by many authors using techniques of light microscopy. However, a study of these fibers using techniques of scanning electron microscopy has not been reported. In the present study, scanning electron microscopic techniques revealed that transalveolar fibers were composed of a bundle of smaller fibers. This fiber bundle passed through channels in bone and was attached to the bone by anchoring fibers. Transalveolar fibers branched within bone. Near points of branching, channels were often dilated. Channels were continuous with the connective tissue space of the periodontal ligament at the bone margin. The results presented herein suggested a revised concept for the anchorage of fibers of the periodontal ligament to bone.
许多作者运用光学显微镜技术对穿牙槽纤维进行了描述。然而，尚未见有使用扫描电子显微镜技术对这些纤维进行研究的报道。在本研究中，扫描电子显微镜技术显示穿牙槽纤维由一束较细的纤维组成。这束纤维穿过骨内的通道，并通过锚定纤维附着于骨。穿牙槽纤维在骨内分支。在分支点附近，通道常呈扩张状。通道与牙槽嵴处牙周膜的结缔组织间隙相连。本文给出的结果提示了牙周膜纤维与骨附着的一个修正概念。
