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[摘要] 目的：Vitapex 根管糊剂对年轻恒牙根尖诱导成形的临床疗效。方法：选择8～13岁儿童46例55颗牙，均为牙根发育尚未完成的年轻恒牙进行根管治疗，用Vitapex糊剂行根尖诱导。结果：经临床观察3年，Vitapex诱导根尖形成的总有效率92.7%。结论：Vitapex根管糊剂在年轻恒牙根尖诱导成形中疗效满意，可作为首选。

[关键词] VITAPEX；根尖诱导成形术；年轻恒牙

[中图分类号] R783.4 [文献标识码]C [文章编号]1674-4721（2009）02（a）-082-02

Clinical Study on the Effect of Vitapex Paste in Apexification

ZHENG Fang

（The Children Hospital of Wuhan，Wuhan 430016,china）

[Abstract] Objective: The purpose of this article was to observe the effect of Vitapex Paste in apexification. Methods: 46 younger permament teeth with under developed apex and necrotic pulp were randomly selected. After root canals were prepared and sterilized, Vitapex paste was used in the apexification. All the teeth were observed for three years. Results: 24 teeth(43.60%) were successful, 27 teeth (49.10%) were progressive, 4 teeth (7.27%) were failed. Altogether 51 teeth were effective, the effective rate was 92.7%. Conclusion: Vitapes paste was effective for the younger permanent teeth in the apexification.

[Key words] Vitapex paste；Apexification；Young permanent

年轻恒牙通常在萌出后如出现牙髓感染、坏死或根尖周感染，牙就会停止发育，根尖孔不再发生闭合，从而无法进行常规的根管治疗，因而诱导年轻恒牙继续发育、根尖孔闭合具有重要的临床意义。氢氧化钙制剂作为目前传统根尖诱导的首选药物，其成功率在74 %～100 %之间 。但该方法存在一定的局限性。因此，人们不断探索更为理想的诱导材料和方法，并尝试一次就诊完成根尖诱导。Vitapex 糊剂是一可加压注射型根管充填材料，具有良好的组织相容性和诱导成骨性，但也存在传统根尖诱导剂的局限性。本研究选取2005 年9 月～2008 年3 月在武汉市儿童医院儿口腔科门诊就诊的46例患儿共55颗牙，采用Vitapex 进行根尖诱导，以评价Vitapex药物的临床疗效[1，2]。

1 资料和方法

1.1 一般资料

实验组46例55颗年轻恒牙，男27例31颗牙，女19例24颗牙；年龄8～13岁；前牙32颗，前磨牙18颗，磨牙5颗。均因外伤、龋齿、畸形中央尖导致牙髓炎、根尖周炎，使牙根发育停止。对照组38例46颗恒牙， 男18例27颗牙，女20例19颗牙；年龄8～13岁；前牙28颗，前磨牙14颗，磨牙4颗。X线片示所有患牙根尖未发育完成，根尖孔呈开放状。……