Chumakov A A, Komnov D V
Stomatologiia (Mosk). 1990 Sep-Oct(5):4-6.
Pulp stump and periapical tissue reaction to root canal filling with material containing calcium hydroxide and potassium nitrate after subtotal vital extirpation of the pulp was studied in 12 teeth of 6 green monkeys. Use of the material containing potassium nitrate was found to result on the 90th day of the experiment in the formation of a biologic barrier of secondary cement at the dental root apex. Such result was not achieved with calcium hydroxide-containing material. Other advantages of potassium nitrate-containing material were detected, consisting in a more rapid recovery of structural shifts in the pulp stump and periapical tissues.
在6只绿猴的12颗牙齿上，研究了牙髓大部分活髓摘除后，用含氢氧化钙和硝酸钾的材料进行根管充填时牙髓残端和根尖周组织的反应。实验第90天时发现，使用含硝酸钾的材料可在牙根尖形成次生牙骨质的生物屏障。而含氢氧化钙的材料未取得这样的结果。还检测到含硝酸钾材料的其他优点，包括牙髓残端和根尖周组织结构变化恢复更快。
