摘要
目的:探究改良负压充填技术的根管充填效果,评估该技术的临床可行性。方法:收集新鲜离体牙,根管预备后随机分4组,A:改良负压组;B:单尖组;C:冷牙胶侧方加压组;D:热牙胶垂直加压组。根充后拍摄X线片,对根充长度、密度和锥度进行评分。拍摄锥形束计算机断层扫描(cone beam computed tomography,CBCT),测量根充材料末端至影像学根尖孔的距离并评分;筛选各组牙齿及其根管内气泡,计算气泡比例,并测量根管内最大气泡直径。结果:X线片结果显示不同充填技术在长度、密度和锥度临床评分比较无统计学差异(P>0.05)。CBCT结果显示不同充填技术在根充材料末端至影像学根尖孔的距离比较无统计学差异(P>0.05),不同充填技术对牙齿及根管内气泡比例比较均有统计学差异(P<0.001)。结论:在影像学检测中,改良负压充填技术可与其他根管充填技术达到相同的根充效果,可以作为常规根管充填技术的非劣性替代治疗方案。
Objective:To explore the root canal filling effect of the innovative negative pressure obturation technique and assess its clinical practicability.Methods:Freshly extracted teeth were collected and randomly allocated into 4 groups after root canal preparation:(A)the innovative negative pressure obturation group,(B)the singlecone filling group,(C)the cold lateral compaction group,and(D)the warm vertical compaction group.X-rays were taken after the operation,and scored the length,density,and taper of the root fillings.Cone beam computed tomography(CBCT)scans were conducted to measure and score the distance from the end of the root filling material to the radiographic apical foramen;teeth and root canals were screened to calculate the proportion of root filling bubbles and measure the maximum bubble diameter.Results:The X-ray outcomes indicated no statistically significant differences in the clinical scores of length,density,and taper among different filling techniques(P>0.05).The CBCT results demonstrated no significant difference in the distance from the end of the root filling material to the radiographic apical foramen among different filling methods(P>0.05),while different filling procedures had a significant impact on the proportion of bubbles in teeth and root canals(P<0.001).Conclusion:Based on imaging examinations,the innovative negative pressure obturation technique can achieve the same root canal filling effect as other root canal filling techniques and can serve as a non-inferior alternative treatment option for conventional root canal filling techniques.
作者
马利沙
何新宇
吉胡克的
胡昕
赵继志
MA Lisha;HE Xinyu;JIHU Kedi;HU Xin;ZHAO Jizhi(Department of Stomatology,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100730,China)
出处
《口腔医学研究》
北大核心
2025年第6期477-481,共5页
Journal of Oral Science Research
基金
中国医学科学院临床与转化医学研究专项(编号:2024-I2M-C&T-B-031)
北京协和医院中央高水平医院临床科研专项(编号:2022-PUMCH-A-014,2022-PUMCH-B-037)。
作者简介
马利沙(1992~),女,河南许昌人,硕士,医师,研究方向:牙体牙髓病学;通信作者:赵继志,E-mail:zhaojizhi@126.com。
