[正畸治疗后牙髓形态的光镜研究]。

M Kukletová, O Jedlicková, M Pokorná, J Papousek
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引用次数: 0

摘要

作者研究了正畸治疗牙体中酸性和中性粘多糖的牙髓形态和分布。用固定矫治器用60-200克的力移动牙齿。治疗后牙髓的组织结构发生改变。胶原纤维数量增加;它们被密密麻麻地捆成一捆。还观察到一定程度的透明化。牙髓腔因沿根管壁堆积的硬组织而变窄。髓质结石和弥漫性钙化常被发现。发现酸性粘多糖的反应很弱,有时甚至是阴性的。中性粘多糖的反应不受明显影响。结果表明,固定矫治器对牙髓的影响是不可逆的,与老化的影响相对应。这些过早的变化加上快速的硬组织形成,可能会对未来的根管治疗产生负面影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
[Light microscopic studies of pulp morphology following orthodontic therapy].

The authors studied the dental pulp morphology and distribution of acid and neutral mucopolysaccharides in teeth subjected to orthodontic therapy. The teeth were moved with a fixed appliance using forces of 60-200 g. Changes in the histological structure of the dental pulp followed the therapy. The number of collagen fibres increased; they were densely packed and formed thick bundles. A certain degree of hyalinization was also observed. The dental pulp cavity was narrowed by apposition of hard tissue deposits along the canal wall. Pulp stones and diffuse calcification were often encountered. The reaction of acid mucopolysaccharides was found to be very weak, sometimes even negative. The reaction of neutral mucopolysaccharides was not affected so markedly. The results of the paper suggest that changes induced in the dental pulp with fixed orthodontic appliances are irreversible and correspond to those of aging. These premature changes together with rapid hard tissue formation, may negatively influence endodontic treatment in the future.

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