作者：赵晓一 董青 王世明 张成飞

Author：ZHAO Xiao-yi1, DONG Qing2, WANG Shi-ming1, ZHANG Cheng-fei3

收稿日期：2008-10-25          年卷（期）页码：2008,26(05):505-

期刊名称：华西口腔医学杂志

Journal Name：West China Journal of Stomatology

关键字：牙胶尖,热垂直加压法,根管充填,

Key words：gutta-percha,warm vertical condensation,root canal filling,

基金项目：

中文摘要

目的研究采用不同锥度牙胶尖热垂直加压法行根管充填的临床X线片评价及术后1年的临床疗效。方法选择上颌前牙单、直根管患牙40颗为研究对象，采用Hero 642机用镍钛锉预备至0.06锥度30号锉，随机分为2组，每组20颗患牙。分别使用0.02锥度和0.06锥度牙胶尖采用热垂直加压法充填根管。对术后即刻X线片进行2组患牙根管充填质量、侧支根管充填及超填情况的比较；并比较2组患牙术后1年的临床疗效。结果0.02锥度组与0.06锥度组根管充填质量、侧支根管充填及超填情况没有明显差异。术后1年复查，0.02锥度组与0.06锥度组的治疗成功率一致，但0.06锥度组病变愈合趋势快于0.02锥度组。结论对于镍钛旋转器械预备的较大锥度单、直根管，采用热牙胶垂直加压法行根管充填，使用与根管预备锥度相一致的大锥度牙胶尖能够提高根管治疗的临床疗效。

英文摘要

Objective To compare the clinical effect of different tapered gutta-percha root filling by warm vertical condensation with immediate postoperative radiographs and one year follow-up. Methods 40 maxillary anterior teeth with single, straight canals were divided into two equal groups. The teeth were instrumented with Hero 642 rotary nickel-titanium files to a master file 0.06 taper No. 30. Group 1 was obturated with 0.02 tapered gutta-percha using System B for downpack and Obtura Ⅱ for backfilling. Group 2 was the same but 0.06 tapered gutta-percha. Every tooth′s X-ray radiographs of immediate postoperative and one year follow-up were taken. In order to compare the quality of root canal filling, the rate of filling material extrusion, and the rate of obturation of lateral canals in each group were evaluated by X-ray radiographs. The clinical effect of one year follow-up′s radiographs of the two groups was compared too. Results There was no significant difference in two groups on the quality of the root canal filling, obturation of lateral canals, and filling material extrusion. The success of the therapy was similar. But the 0.06 tapered gutta-percha group showed more quickly healing trend on apical periodontitis. Conclusion When single, straight root canals were obturated using warm vertical condensation, adaptively tapered gutta-percha showed better clinical effect.

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