Reciproc与Mtwo镍钛器械在下颌第一磨牙根管预备中的临床疗效评价

发布时间：2019-04-27 06:05

【摘要】：目的:比较单支锉Reciproc与全序列锉Mtwo镍钛器械预备下颌第一磨牙的临床疗效是否相同,为临床医师选择合适的器械提供参考。方法:依据病人就诊先后次序收集下颌第一磨牙72颗(共计256个根管,4个根管牙数40颗,3个根管牙数32颗),随机分成Reciproc组(R组)和Mtwo组(M组),分别用Reciproc和Mtwo镍钛器械预备根管;前者采用冠向下预备技术预备根管,后者采用全长预备技术预备根管,两组均选用热牙胶连续波垂直加压技术充填根管。分别记录根管预备时间、根管预备后两天内的疼痛及术后根充效果。结果:R组单颗牙齿预备平均时间和单个根管预备平均时间都少于M组(P0.O5)。根管预备术后两天内两组均未出现诊间疼痛(P0.05)。R组8个根管超充(远中根管),4个根管欠充(远中根管),116个根管恰填;M组4个根管超充(近中舌根管),124个根管恰填,两组充填效果无统计学意义(P0.05)。结论:本次实验中,按照规范的流程使用Reciproc镍钛单支锉,可以较高质量的完成根管预备,减少根管预备时间;同时根管预备后无诊间疼痛发生,且与Mtwo镍钛器械预备后的根充效果无差异。
[Abstract]:Aim: to compare the clinical efficacy of single file Reciproc and full sequence file Mtwo nickel titanium instrument in the preparation of mandibular first molar, and to provide a reference for clinicians to select appropriate instruments. Methods: 72 mandibular first molars were randomly divided into two groups: Reciproc group (R group) and Mtwo group (M group), according to the order of visit, 72 mandibular first molars (total 256 root canals, 4 root canal teeth 40 teeth, 3 root canal teeth 32 teeth) were randomly divided into two groups: group R (group R) and group M (group M). Reciproc and Mtwo instruments were used to prepare root canals. The former used crown-down preparation technique to prepare root canal, and the latter used full-length preparation technique to prepare root canal. Hot gutta continuous wave vertical compression technique was used to fill root canal in both groups. The time of root canal preparation, pain within two days after root canal preparation and the effect of root filling after root canal preparation were recorded. Results: the average time of single tooth preparation and single root canal preparation in group R was shorter than that in group M (P0.O5). Two days after root canal preparation, no pain occurred in the two groups (P0.05:). R group, 8 root canals were superfilled (distal root canal), 4 root canals were underfilled (distal root canal), and 116 root canals were filled properly. In M group, 4 root canals were superfilled (near-middle tongue root canal) and 124 root canals were filled properly. There was no significant difference in filling effect between the two groups (P0.05). Conclusion: in this experiment, according to the standard procedure, using Reciproc Ni-Ti single file can complete root canal preparation with high quality and reduce root canal preparation time. At the same time, no pain occurred after root canal preparation, and there was no difference in root filling effect between root canal preparation and Mtwo Ni-Ti instrument.
【学位授予单位】：遵义医学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R781.05

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