机用镍钛通畅锉用于S形根管成形能力的体外研究

doi:10.13701/j.cnki.kqyxyj.2020.08.018

口腔医学研究 ›› 2020, Vol. 36 ›› Issue (8): 781-785.DOI: 10.13701/j.cnki.kqyxyj.2020.08.018

机用镍钛通畅锉用于S形根管成形能力的体外研究

于江利, 谭瑶, 侯晓玫^*, 韩怡

北京大学口腔医院第二门诊部北京 100101

收稿日期:2019-12-13 出版日期:2020-08-28 发布日期:2020-08-18
通讯作者: 侯晓玫,E-mail:houxiaomei1108@163.com
作者简介:于江利(1988~ ),女,河南平顶山人,硕士,住院医师,研究方向:根管镍钛锉的特性和成型能力。
基金资助:
北京大学口腔医院临床新技术新疗法项目(编号:PKUSSNCT-17B12);北京市首都健康保障研究项目(编号:Z181100001618018)

Shaping Ability of Instrumental Nickel-titanium Endodontic Files in S-shaped Resin Simulated Root Canal

YU Jiangli, TAN Yao, HOU Xiaomei^*, HAN Yi

The Second Dental Center, School of Stomatology, Peking University, Beijing 100101, China

Received:2019-12-13 Online:2020-08-28 Published:2020-08-18

摘要/Abstract

摘要： 目的: 比较R-Pilot(RP)、One G(OG)、ProGlider (Pr)、PathFile(Pa)、HyFlex EDM Glidepath File(EDM)以及手动不锈钢K锉(K锉)在S形树脂模拟根管制备通畅通道的成形能力。方法: 48个S形树脂模拟根管,随机分为6组(n=8),分别使用6种器械制备通畅通道,记录制备时间;扫描仪获取制备前后根管图像,使用Photoshop和ImageJ软件进行图像重叠,并从根尖止点开始,每隔1 mm测量根管内、外侧壁树脂去除量;外弯量减去内弯量,表示中心定位能力。单因素方差分析进行统计学检验,显著水平为0.05。结果: 制备时间方面,RP与OG最短,显著小于其他各组(P＜0.05)。树脂去除量方面,根方弯曲段(距根尖0~3 mm),RP、OG、Pr、Pa均显著小于EDM和K锉(P＜0.05);冠方弯曲段(距根尖4~6 mm),RP、OG、K锉均显著小于EDM(P＜0.05),显著多于Pr和Pa(P＜0.05)。中心定位能力方面,根方弯曲段,RP、OG显著优于其他组(P＜0.05);冠方弯曲段,Pr、Pa组最佳(P＜0.05),RP、OG、K锉次之(P＜0.05)。结论: S形根管制备通畅通道宜选用.03~.04锥度镍钛通畅锉,制备时间短、顺应性好、形成中上段开敞。

关键词: 往复运动, 镍钛根管锉, 通畅通道, S形树脂根管, 根管成形能力

Abstract: Objective: To compare the shaping ability of R-Pilot (RP), One G (OG), ProGlider (Pr), PathFile (Pa), HyFlex EDM Glidepath File (EDM), and manual stainless steel K-file (K file) in S-shaped resin simulated root canal. Methods: A total of 48 S-shaped resin simulated root canal blocks were divided randomly into six groups (n=8). Each group was prepared with each instrument, respectively. Preparation time was recorded. Pre- and post-operative images were obtained using a scanner and superimposed using Photoshop. The material removal was measured using ImageJ from the inner and outer canal walls beginning from 0 mm at the end point of the root canal. Centering ability was determined, accordingly. The data were analyzed using the One-Way ANOVA at a significance level of P<0.05. Results: In the term of preparation time, RP and OG were significantly shorter than the others (P<0.05). In the term of the material removal of resin, at the apical curve (0-3 mm from the apical foramen), RP, OG, Pr, and Pa were significantly less than EDM and K file (P<0.05). At the coronal curve (4-6 mm from the apical foramen),RP, OG, and K file were significantly less than EDM (P＜0.05), and were significantly more than Pr and Pa (P＜0.05). As far as the centering ability was concerned, at the apical curve, RP and OG were the optimum (P＜0.05). At the coronal curve,Pr and Pa were the optimum (P＜0.05),followed by RP, OG, and K file (P＜0.05). Conclusion: For glide path preparation of S-shaped root canal, the 03-04 tapered nickel-titanium files were suitable, which had shorter preparation time, better centering ability, and the flare of the canal.

Key words: reciprocating motion, nickel-titanium endodontic file, glide path, S-shaped resin simulated root canal, root canal shaping ability

于江利, 谭瑶, 侯晓玫, 韩怡. 机用镍钛通畅锉用于S形根管成形能力的体外研究[J]. 口腔医学研究, 2020, 36(8): 781-785.

YU Jiangli, TAN Yao, HOU Xiaomei, HAN Yi. Shaping Ability of Instrumental Nickel-titanium Endodontic Files in S-shaped Resin Simulated Root Canal[J]. Journal of Oral Science Research, 2020, 36(8): 781-785.

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机用镍钛通畅锉用于S形根管成形能力的体外研究

Shaping Ability of Instrumental Nickel-titanium Endodontic Files in S-shaped Resin Simulated Root Canal

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