四种不同氢氧化钙制剂对畸形中央尖患牙的根尖诱导

背景：氢氧化钙制剂在诱导畸形中央尖患牙根尖封闭中取得了较满意的临床效果。目的：对比4种不同氢氧化钙制剂诱导畸形中央尖患牙根尖封闭的临床效果。方法：选择因畸形中央尖引起的根尖周病变患者127例,分别采用Vitapex糊剂(n=31)、Metapex糊剂(n=32)、氢氧化钙糊剂(n=34)及氢氧化钙粉剂(n=30)行根尖诱导,术后第1,3,6,12,24个月拍摄X射线片观察根尖状况。结果与结论：①诱导周期：除Vitapex糊剂组和Metapex糊剂组差异无显著性意义外,其余每两组诱导周期之间差异均有非常显著性意义(P < 0.001)。②诱导效果：Vitapex糊剂组、Metapex糊剂组、氢氧化钙糊剂组诱导成功率均高于氢氧化钙粉剂组(P < 0.05),但前3组组间比较差异无显著性意义。表明Vitapex糊剂、Metapex糊剂和氢氧化钙糊剂具有良好的根尖诱导作用,且Vitapex糊剂和Metapex糊剂的诱导周期较短。

Apexification of abnormal central cusp teeth with four kinds of calcium hydroxide preparations

BACKGROUND:Great achievements of calcium hydroxide which is used to induce the apical seal have been reported.OBJECTIVE:To evaluate the differences in clinical efficacy of apexification with four kinds of calcium hydroxide preparations.METHODS:Totally 127 patients with periapical lesions for abnormal central cusp were selected and underwent the apexification respectively with the Vitapex (n=31), the Metapex (n=32), the calcium hydroxide cataplasm (n=34) and the calcium hydroxide powder (n=30). X-ray observation of the tooth apex was made at 1, 3, 6, 12 and 24 months after operation.RESULTS AND CONCLUSION:(1) Induction cycle: There was a significant difference between groups (P < 0.001), except for the Vitapex group and Metapex group. (2) Induction effect: The success rates in three groups of Vitapex, Metapex and calcium hydroxide cataplasm were higher than that in the group of calcium hydroxide powder (P < 0.05), but there was no significant difference between the first three groups. There was a good root induction in three groups of Vitapex, Metapex and calcium hydroxide cataplasm, and the induction cycle was shorter in Vitapex and Metapex groups.