宋彦蓉,刘洪静,丁福根,钟锟
SONG Yanrong,LIU Hongjing,DING Fugen,ZHONG Kun

• 1:贵州医科大学口腔医学院

摘要(Abstract)：

目的 评价激光微创牙冠延长术修复牙体缺损的效果。方法 将48例需行牙冠延长术患者随机均分为观察组(微创牙冠延长术)与对照组(传统冠延长术),比较2组患者的临床疗效及术后第1～7天的疼痛评分(VAS);于术后第2、4、8及12周时记录龈缘位置(PGM),于术后第1、2、4及8周时探查菌斑指数(PLI)和出血指数(BI),术后12周时检查牙齿松动度及咀嚼功能。结果 2组患者治疗效果比较，差异无统计学意义(P>0.05);观察组患者术后第1～6天时的疼痛VAS评分明显低于对照组，差异有统计学意义(P<0.05);观察组患者术后2周时PGM基本趋于稳定，而对照组患者术后4周时PGM才基本趋于稳定，观察组患者术后2周的PGM开始大于对照组，差异有统计学意义(P<0.05);术后4周、8周及12周PGM比较，差异无统计学意义(P>0.05);观察组患者术后1周及2周时PLI、BI指数低于对照组，差异有统计学意义(P<0.05);观察组患者术后12周时牙齿松动度小于对照组(P<0.05),术后12周时2组咀嚼功能比较差异无统计学意义(P>0.05)。结论 激光微创牙冠延长术较传统冠延长术术后反应更小、获得龈缘位置稳定时间更短、牙齿松动度更小。
Objective To evaluate the therapeutic effectiveness of laser minimally invasive crown lengthening for the restoration of dental defects. Methods Fourty-eight patients(48 teeth) requiring crown lengthening were randomly divided into an observation group(laser minimally invasive crown lengthening) and a control group(conventional crown lengthening). The clinical outcomes, pain scores(VAS) on postoperative days 1-7, position of gingival margin(PGM) at postoperative weeks 2, 4, 8, and 12, plaque index(PLI) and bleeding index(BI) at postoperative weeks 1, 2, 4, and 8, and tooth looseness and masticatory function at postoperative week 12 were compared.Results The difference between the two groups was not statistically significant(P>0.05); the pain VAS scores of the observation group were significantly lower than those of the control group from day 1 to 6 after surgery, and the difference was statistically significant(P<0.05), while the difference was not statistically significant(P>0.05) when comparing the two groups on day 7; the PGM of the observation group basically stabilized 2 weeks after surgery, while the PGM of the control group basically stabilized 4 weeks after surgery. The difference was statistically significant(P<0.05); the difference was not statistically significant(P>0.05) when comparing the PGM at 4 weeks, 8 weeks, and 12 weeks after surgery; the PLI and BI indices were lower in the observation group than in the control group at 1 week and 2 weeks after surgery, and the difference was statistically significant(P<0.05); 12 weeks after surgery in the observation group Tooth loosening in the observation group was less than that in the control group(P<0.05), and the difference in masticatory function between the two groups at 12 weeks after surgery was not statistically significant(P>0.05).Conclusion Laser in crown lengthening surgery is less reactive than conventional crown lengthening, with less time to achieve gingival margin stability and less tooth loosening.

关键词(KeyWords)： 残根残冠;微创牙冠延长术;咀嚼功能;牙周情况;疼痛评分
residual root and crown;minimally invasive crown lengthening;masticatory function;periodontal condition;pain score

Abstract:

Keywords:

基金项目(Foundation): 贵州省卫生健康委科学技术基金项目(gzwjkj2020-1-164)

作者(Author): 宋彦蓉,刘洪静,丁福根,钟锟
SONG Yanrong,LIU Hongjing,DING Fugen,ZHONG Kun

DOI: 10.19367/j.cnki.2096-8388.2023.06.015

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