Oxytalan fibres in the periodontal ligament of equine molar cheek teeth
Oxytalan fibres in the periodontal ligament of equine molar cheek teeth
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DOI：
10.1111/j.1439-0264.2004.00503.x
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发表时间：
2004-02-01
期刊：
影响因子：
--
通讯作者：
Gasse, H
中科院分区：
文献类型：
--
作者：
Staszyk, C;Gasse, H
本文观察了7匹马颊牙牙周组织中Oxytalan纤维的分布和排列。氧化之前，醛品红曝光允许选择性染色的oxytalan纤维，这是一个独特的组成部分的弹性纤维系统。在牙周组织的三个水平--（a）牙龈下，（B）中三分之一和（c）顶端--组织学上显示了两组Oxytalan纤维：“血管相关”和“独立”Oxytalan纤维。在水平a和B中，两组均沿储备冠沿着以典型的咬合-根尖对线排列。单oxytalan纤维偏离其一般路线，以连接到牙骨质。在这些牙骨质附着点中，oxytalan纤维平行于胶原纤维束。这种形态学特征的解释强调了在咀嚼运动过程中，oxytalan纤维改善牙周血管壁稳定性的能力。c层，特别是在持续存在的上皮根鞘附近的区域，是产生oxytalan纤维的部位。这是牙齿生长和萌出过程中促进牙周再生和重组的先决条件。
The distribution and arrangement of oxytalan fibres were examined in periodontal specimens of cheek teeth from seven horses. Oxidation prior to aldehyde fuchsin exposition permitted a selective staining of the oxytalan fibres, which are a distinct component of the elastic fibre system. On three horizontal levels of the periodontium - (a) subgingival, (b) middle third and (c) apical - two oxytalan fibre groups were shown histologically: 'blood vessel-related' and 'independent' oxytalan fibres. In levels a and b, both groups were arranged in a typical occluso-apical alignment along the reserve crown. Single oxytalan fibres deviated from their general course in order to attach to the cementum. In these cemental entheses the oxytalan fibres ran parallel to collagen fibre bundles. The interpretation of such morphological features emphasized the oxytalan fibres' capacity to improve the stability of periodontal blood vessel walls during masticatory movements. Level c, especially in regions next to the persisting epithelial root sheath, is the site of oxytalan fibre generation. This is a prerequisite for the facilitation of periodontal regeneration and reorganization during dental growth and eruption.