大鼠体内超充聚乙烯管骨内植入物的效应

The effects of overfilled polyethylene tube intraosseous implants in rats.

作者信息

Deemer J P, Tsaknis P J

出版信息

Oral Surg Oral Med Oral Pathol. 1979 Oct;48(4):358-73. doi: 10.1016/0030-4220(79)90037-9.

Abstract

Polyethylene tubes obturated flush at one end overfilled 2 mm. at the opposite end with unset Grossman's cement and gutta-percha were implanted in rat tibias. Microscopic evaluation of the specimens revealed that (1) the gutta-percha, Grossman's sealer, and polyethylene tubing are well tolerated by rat intraosseous tissue and (2) a canal overextended 2 mm. beyond the apex with Grossman's cement and gutta-percha produces an early mild to moderate inflammatory response which resolves by the end of 30 day's. The overfillings did not significantly compromise the healing of rat intraosseous tissue.

摘要

将一端齐平封闭、另一端用未凝固的格罗斯曼粘固剂和牙胶超填2毫米的聚乙烯管植入大鼠胫骨。对标本的显微镜评估显示：（1）大鼠骨内组织对牙胶、格罗斯曼封闭剂和聚乙烯管耐受性良好；（2）用格罗斯曼粘固剂和牙胶超出根尖2毫米进行根管超填会产生早期轻度至中度炎症反应，该反应在30天结束时消退。超填并未显著影响大鼠骨内组织的愈合。