Effect of different root canal preparation instruments on curved root canal preparation(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2021年第8期
- Page:
- 1028-1032
- Research Field:
- 生物材料与力学
- Publishing date:
Info
- Title:
- Effect of different root canal preparation instruments on curved root canal preparation
- Author(s):
- GU Dawei1; GUO Jincai2
- 1. Department of Stomatology, Chenzhou No.1?eoples Hospital, Chenzhou 423000, China 2. Department of Medical Technology, Changsha Stomatological Hospital, Changsha 410006, China
- Keywords:
- Keywords: root canal preparation Protaper nickel titanium instrument Mtwo nickel titanium instrument stainless steel K file curved root canal root canal obturation
- PACS:
- R783
- DOI:
- DOI:10.3969/j.issn.1005-202X.2021.08.021
- Abstract:
- Abstract: Objective To explore the effect of different root canal preparation instruments on the preparation of curved root canals. Methods Ninety-six patients with pulpitis or apical periodontitis were enrolled in this study, with a total of 148 affected teeth, and then the patients were randomly divided into observation group A, observation group B and control group, with 32 cases in each group. Protaper nickel titanium instrument was used for root canal preparation in observation group A, Mtwo nickel titanium instrument in observation group B, and stainless steel K file in control group. The root canal preparation time, curvature, pain response, root canal conical degree fluency and obturation quality were compared. Results The preparation time of observation groups A and B was significantly shorter than that of control group, and there was no statistical difference between observation groups A and B (P>0.05). After preparation, the curvatures of the root canals in all 3 groups were significantly lower those before preparation, and there was trivial difference among 3 groups (P>0.05). The pain responses of observation groups A and B were significantly better than that of control group (P<0.05) and moreover, observation groups A and B were significantly superior to control group in the conical degree and fluency of premolars and posterior molars (P<0.05). The obturation quality in observation groups A (90.63%) and B (88.89%) were significantly better than that in control group (80.00%) (P<0.05). Conclusion Using nickel-titanium root canal instruments for curved root canal preparation is fast and effective, and it can maintain the shape of the root canal and improve the quality of root canal obturation.
Last Update: 2021-07-31