pH changes in dental tissues after root canal filling with calcium hydroxide.
pH changes in dental tissues after root canal filling with calcium hydroxide.
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DOI：
10.1016/s0099-2399(81)80262-2
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发表时间：
1981-01-01
影响因子：
4.2
通讯作者：
Riis, I
中科院分区：
文献类型：
--
作者：
Tronstad, L;Andreasen, J O;Riis, I
用pH指示剂研究了氢氧化钙根管治疗后恒河猴牙体组织的pH变化。有牙髓坏死的未治疗牙，牙髓、牙本质、牙骨质和牙周膜的pH值为6.0~7.4。经氢氧化钙处理后，牙根形成完全的再植和未再植的牙本质周围牙本质的pH值为8.0~11.1，周边牙本质的pH值为7.4~9.6。在牙根形成不完全的牙齿中，整个牙本质的pH值为8至10。牙骨质的pH值不受氢氧化钙的影响。然而，在吸收区域，暴露的牙本质表面也观察到碱性pH。
The pH changes in dental tissues of monkeys were studied by means of pH indicators after endodontic treatment with calcium hydroxide. Untreated teeth with pulpal necrosis showed a pH of 6.0 to 7.4 in pulp, dentin, cementum, and periodontal ligament. Replanted and nonreplanted teeth with completed root formation and treated with calcium hydroxide showed pH values in the circumpulpal dentin of 8.0 to 11.1, and in the more peripheral dentin of 7.4 to 9.6. In teeth with incomplete root formation, the entire dentin showed a pH of 8 to 10. The pH of the cementum was not influenced by the calcium hydroxide. However, in resorption areas, an alkaline pH was also observed at the exposed dentinal surfaces.