乳牙一次性与多次性根管治疗效果比较

目的探讨乳牙一次性与多次性根管治疗的临床疗效。方法随机选取于该院就诊的慢性牙髓炎或慢性根尖周炎的乳牙患者124例,随机分为一次性根管治疗组（65例）和多次性根管治疗组（59例）,术后随访评价2组的疼痛反应及临床疗效。结果一次法和多次法根管治疗组术后疼痛发生率分别为16.9%和13.6%,两者比较差异无统计学意义（P=0.604）。一次性根管治疗组半年和1年的总有效率分别为86.1%和83.1%;多次法根管治疗组半年及1年的总有效率为91.5%和86.4%,总有效率差异均无统计学意义（P=0.628,P=0.800）。结论一次性根管治疗术与传统多次法根管治疗术在治疗乳牙慢性牙髓炎和根尖周炎方面差异无统计学意义（P〉0.05）,但能够减少就诊次数,缩短疗程。

Clinical study on efficacy of one-visit and multi-visit root canal therapy for primary teeth

Objective To compare the clinical efficacy of one-visit and multi-visit root canal therapy for prima-ry teeth .Methods 124 primary teeth with chronic endodontitis and chronic apical perodontitis were randomly divided into one-visit group（n= 65） and multi-visit group（n= 59） .The postoperative pain levels and clinical efficacy of 2 groups were analyzed .Results The rate of postoperative pain incidence of one-visit group and multi-visit group was 16 .9% and 13 .6% ,respectively（P=0 .604） .In addition ,the effective rate of one-visit group was 86 .1% and 83 .1%after 6 months ,1 years ,while the effective rate of multi-visit group was 91 .5% and 86 .4% ,there were not signifi-cantly difference between 2 groups（P=0 .628 ,P=0 .800） .Conclusion One-visit root canal therapy is effective as multi-visit therapy to treat the chronic endodontitis and chronic apical periodontitis of primary ,furthermore （ P〉0 .05） .The visiting time was reduced and the course of treatment was shortend for one-visit root canal therapy .