超声锉和K锉清除单根管内Vitapex糊剂的比较  

Evaluation of vitapex paste removal by K file and ultrasonic techniques from single rooted teeth

作　　者：杨剑珍[1,2] 梁以明[1,2] 徐学良[1,2] 刘成霞[1,2] 

机构地区：[1]广东省口腔医院 [2]南方医科大学附属口腔医院番禺分院牙体牙髓病科,广东广州511400

出　　处：《广东牙病防治》2014年第12期628-631,共4页Journal of Dental Prevention and Treatment

摘　　要：目的比较超声锉和常规K锉清除单根管离体牙内Vitapex糊剂的效果。方法收集单根管离体牙32颗,常规开髓、根备后,封入Vitapex糊剂,拍术前X线片,暂封后置于人工唾液中2周。离体牙随机分为超声1 min组、超声2 min组、超声3 min组和对照的常规K锉组,每组8颗。超声1 min组:超声锉荡洗根管1 min配合冲洗;超声2 min组:超声锉荡洗根管2 min配合冲洗;超声3 min组:超声锉荡洗根管3 min配合冲洗;常规K锉组:K锉配合冲洗去除根管内Vitapex糊剂。拍术后X线片。使用Image-J图像分析软件分析Vitapex糊剂的残留量,计算清除率。结果 4组均无法完全清除根管内的Vitapex糊剂,超声2 min组、超声3 min组较超声1 min组和常规K锉组的Vitapex糊剂残留量少,清除效果更好,差异具有统计学意义(P<0.05)。结论超声锉清除单根管离体牙内Vitapex糊剂效果优于常规K锉,超声锉荡洗根管2 min和3 min能有效地清除根管内的Vitapex糊剂。Objective This study aimed to evaluate the amount of remaining Vitapex paste in root canals after mechanical removal by two techniques quantitatively. Methods Thirty-two extracted single-rooted teeth were collected and used for all four groups：test group A, B, C and control group D, 8 for each group. After pulp exposing,the samples were firstly prepared by ProTaper rotary instruments, and then filled with Vitapex paste, followed by taking X-ray. After filled temporarily, The tooth were kept in the artificial saliva for 2 weeks. The removal procedure began with Ultrasonic file （ group A, B and C） and K file （group D） , group A： ultrasonic irrigation for 1 minute and syringe irrigation; group B： ultrasonic irrigation for 2 minutes and syringe irrigation ; anti group C ： ultrasonic irrigation for 3 minutes and syringe lrrigation; group D（ control group） ： remove the Vitapex paste with K file and syringe irrigation. The tooth were then taken X-ray. The ratio of Vitapex paste coated surface area was calc, ulated by a image analysis software called hnage-J. The data were statistically analyzed by one-way ANOVA using post-hoc Tukey test. Results It showed that none of the two techniques were able to remove all Vitapex paste, group A and group B have better removal effects than group C and group D, and significant difference was found between group A, group B and group C, group D （ α = 0.05 ）. Conclusion The ultrasonic techniques were more effective in removing intracanal medicaments than the K file when the activation time is 2 min and 3 min.

关 键 词：根管充填材料 超声处理 牙髓腔 Vitapex清除 超声锉 根管冲洗 

分 类 号：R781.05[医药卫生—口腔医学]