幼龄犬再植牙和自体移植牙髓中的氧化还原酶活性。

Oxidoreductase activity in the pulp of replanted and autotransplanted teeth in young dogs.

作者信息

Skoglund A, Hasselgren G, Tronstad L

出版信息

Oral Surg Oral Med Oral Pathol. 1981 Aug;52(2):205-9. doi: 10.1016/0030-4220(81)90320-0.

Abstract

The purpose of the present investigation was to assess the vitality of the pulp of the replanted and autotransplanted teeth with incomplete root formation by means of histochemical demonstrated of oxidoreductase activity during a 180-day period. Staining for enzyme was seen in the whole pulp during the first postoperative days. After 10 days, staining was observed only in the foraminal area of the pulp and in blood vessels in apparently necrotic tissue. Thirty days postoperatively staining was observed in the whole pulp; 180 days after replantation or autotransplantation six out of eight teeth exhibited enzyme activity in the entire pulp. Thus, it appeared that the pulp of the replanted and autotransplanted teeth with partly formed roots underwent necrosis and that the dead tissue was replaced by new tissue.

摘要

本研究的目的是通过组织化学方法显示氧化还原酶活性，在180天的时间里评估牙根未完全形成的再植牙和自体移植牙髓的活力。术后最初几天，整个牙髓均可见酶染色。10天后，仅在牙髓的根尖孔区域以及明显坏死组织中的血管内观察到染色。术后30天，整个牙髓均观察到染色；再植或自体移植180天后，8颗牙齿中有6颗在整个牙髓中表现出酶活性。因此，似乎牙根部分形成的再植牙和自体移植牙的牙髓会发生坏死，并且坏死组织会被新组织取代。