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目的比较冷牙胶侧方加压技术和热牙胶垂直加压技术充填弯曲或复杂根管的临床效果。方法选择2010年7月至2011年7月收治的132例(132颗下颌磨牙)存在弯曲或复杂解剖结构根管的根尖周炎或牙髓炎患者,按随机数字表法分为A、B两组,每组各66例(66颗下颌磨牙)。全部患者均予以冠向下法预备根管。在根管充填方法的选择中,A组采取冷牙胶侧方加压技术,B组采取热牙胶垂直加压技术。对两组患者充填后的根管充填情况、疼痛发生率、糊剂存留量、牙胶尖稀疏及根尖暗影的消退情况进行观察,比较两组患牙的疗效。结果经治疗1年后复查评价,B组患者的恰填率显著高于A组(P<0.01),而超填及欠填率显著低于A组(P<0.01,P<0.05),且治疗后B组患者发生疼痛、糊剂存留量多及牙胶尖稀疏发生率显著低于A组(P均<0.05)。B组总有效率显著高于A组(98.5%vs 77.3%,P<0.01)。结论热牙胶垂直加压技术填充弯曲或复杂根管的临床效果显著优于冷牙胶侧方加压技术。
Objective To compare the clinical effects of lateral compression of cold teethers and vertical compression of thermal teethes with curved or complex root canal. Methods From July 2010 to July 2011, 132 patients (132 mandibular molars) with periapical periodontitis or pulpitis with curved or complicated anatomical root canal were randomly divided into A, B Two groups, 66 cases in each group (66 mandibular molars). All patients were given crown-down method of preparation of root canal. In the choice of root canal filling method, A group to take cold side of the lateral pressure of toothpaste technology, B group to take the vertical pressure of hot tooth glue technology. The filling of the root canal, the incidence of pain, the storage of the paste, the sparse gingivitis and the regression of the apical shadow of the two groups were observed. The curative effect was compared between the two groups. Results After 1 year of treatment, the correct filling rate was significantly higher in group B than that in group A (P <0.01), while the filling and underfilling rates in group B were significantly lower than those in group A (P <0.01, P <0.05) After treatment, the patients in group B had more pain, more pooled paste and less gingivitis than those in group A (all P <0.05). The total effective rate in group B was significantly higher than that in group A (98.5% vs 77.3%, P <0.01). Conclusion The clinical effect of using hot teethers vertical compression technology to fill curved or complex root canal is significantly better than that of cold teethe lateral compression technique.