两种根充糊剂用于根管充填后的疗效比较

背景：理想的根管充填材料应具有良好的生物相容性及根尖封闭性，根充后有持续的消毒作用、与根管壁密合充填后体积不收缩、能促进根尖组织的愈合等特性。目的：对比观察AH plus糊剂和氧化锌丁香油糊剂用于根管充填后的疗效。设计、时间及地点：临床病例观察，病例来自于2007-09/2008-04桂林市口腔医院。对象：选取需行根管治疗的患者308例，随机分为观察组152例，对照组156例。方法：观察组以AH plus根管糊剂为根管封闭剂，对照组使用氧化锌丁香油糊剂为封闭剂，分别加牙胶尖进行根管充填。在术后1周、6个月、12个月进行追踪观察，对结果进行统计学分析。主要观察指标：两组患者的根管充填情况、术后疼痛程度、术后6个月及12个月的疗效。结果：术后1周AH plus糊剂组疼痛发生率及疼痛程度明显低于氧化锌丁香油糊剂组(P < 0.05)，术后6个月及12个月的成功率差异无显著性意义(P > 0.05)。结论：AH plus糊剂术后疼痛反应小，远期疗效较好，生物相容性较好，是理想的根管充填材料。

Clinical evaluation of effectiveness of two root sealers in root canal therapy

BACKGROUND: Ideal root canal filling materials should possess good biocompatibility and root tip occlusion, continuous degermation, contracting volume after attached to the root canal wall and could promote root tissue healing.OBJECTIVE: To investigate the biocompatibility of AH plusTM and Zinc Oxide engenol. DESIGN, TIME AND SETTING: Clinical case observation. The study was performed at the Guilin Stomatological Hospital from September 2007 to April 2008.PARTICIPANTS: A total of 308 patients requiring root canal therapy were randomly divided into trial (n=152) and control groups (n=156).METHODS: The trial group was treated using AH plusTM sealer, and the control group using Zinc Oxide engenol. The gutta percha point was used to fill the canal. The clinical effects were observed 1 week, 6 months and 12 months postoperatively. The results were analyzed using statistical software. MAIN OUTCOME MEASURES: Canal obturation, pain degree, and treatment effects at 6 and 12 months postoperatively.RESULTS: The pain incidence and pain severity of AH plusTM sealer group were significantly lower than Zinc Oxide engenol group (P < 0.05). No difference was found between 6 and 12 months efficiency rate (P > 0.05). CONCLUSION: The root canal therapy using AH plusTM sealer can significantly reduce pain, with good long-term effect and biocompatibility. It is an ideal material.