根管消毒药物缓解乳磨牙根尖周炎临床症状的疗效分析

目的：对比四种临床常用的根管消毒药物缓解乳磨牙根尖周炎临床症状的效果。方法 选择根尖周炎乳磨牙160颗，随机分为四组，每组40颗，根管预备超声荡洗后，A组封入抗生素糊剂，B组封入Vitapex糊剂，C组封入氢氧化钙糊剂，D组封入樟脑酚棉球，10 d后复诊，对四种根管消毒药物缓解乳牙根尖周炎临床症状的效果进行评价。结果 在10d后脓肿消除方面抗生素糊剂组效果优于其他三组（P=0.005），Vitapex组与氢氧化钙组效果，均优于樟脑酚组（P＜0.05）。术后24h内疼痛的发生率抗生素糊剂组术后24 h内疼痛发生率低于Vitapex组（P=0.014）和氢氧化钙组（P=0.045）。10 d后疼痛的比例各组之间无统计学差异。结论 抗生素糊剂能够有效缓解乳牙根尖周炎的临床症状。

Efficacy evaluation of root canal disinfectant alleviating clinical symptoms of periapical periodontitis of primary molar teeth

Objective Comparison the effect of four root cancal disinfectants alleviating clinical symptoms of periapical periodontitis primary molar teeth. Methods To divide 160 primary molar tooth having apical periodontitis randomly into four groups. All the tooth opened and prepared conventionally and then ultrasonic irrigation. Antibiotic paste was given in group A, vitapex paste was given in group B,calcium hydroxide paste in group C and cotton ball of camphor phend in group D for root canal disinfection．The effects was observed ten days after medication placement．Results The cure rate of abscess after 10 days is significant difference between antibiotic paste and other three groups(P=0.005),vitapex paste and calcium hydroxide are similarity (P=0.284),but camphor phend showed poor effect (P=0.026)．Antibiotic paste is similar with camphor phend(P=0.499)in incidence of postoperation pain within 24 hours,but better than vitapex paste(P=0.014）and calcium hydroxide(P=0.045). There are no significant difference between all the groups in percussion pain(P=0.417)．Conclusion Antibiotic paste could alleviate clinical symptoms of periapical periodontitis primary molar teeth effectively.