王洪云+董亮
摘 要 目的:观察1%次氯酸钠联合EDTA凝胶在根管治疗中的应用效果。方法:选择确诊为牙髓炎并拟行根管治疗的100例患者,患牙共100颗,随机分为观察组与对照组各50例(50颗患牙)。两组均使用裂钻、球钻等进行开髓并髓腔修整,对照组给予3%双氧水和生理盐水交替冲洗根管,观察组给予EDTA凝胶和1%次氯酸钠冲洗根管。根据两组患者根管预备后的疼痛发生率、出现疼痛的時间对疗效进行评价。结果:观察组疼痛发生率明显低于对照组(38% vs 74%, P<0.01)。根管预备后观察组和对照组在出现疼痛时间方面存在明显差异(8% vs 40%,≤24 h; 30% vs 34%,>24 h; P<0.05)。结论:1%次氯酸钠联合EDTA凝胶用于根管治疗中能显著减轻术后急性炎症反应,减少疼痛发生,是较为理想的根管清理及根管预备辅助材料。
关键词 次氯酸钠 EDTA凝胶 根管清理 根管预备
中图分类号:R782.32 文献标识码:B 文章编号:1006-1533(2018)01-0025-02
Effects of 1% sodium hypochlorite plus EDTA gel on 50 cases of root canal therapy
WANG Hongyun, DONG Liang
(Department of Stomatology, the Peoples Hospital of Haibin, Tianjin 300280, China)
ABSTRACT Objective: To explore the effects of 1% sodium hypochlorite plus EDTA gel on root canal therapy. Methods: One hundred cases (100 teeth) with root canal therapy were selected and randomly divided into an observation group(n=50, 50 teeth) and a control group (n=50, 50 teeth). All the cases were treated with open dental pulp and the root canal was alternatively irrigated with 3% hydrogen peroxide and saline in the control group and 1% sodium hypochlorite plus EDTA gel in the observation group. The efficacy was assessed based on the incidence of pain and the time for pain onset. Results: The incidence of pain was significantly lower in the observation group than in the control group (38% vs 74%, P<0.01 ). There existed significantly differences between the observation group and the control group in the time for pain onset after root canal preparation (8% vs 40%, ≤24 h; 30% vs 34%, >24 h; P<0.05). Conclusion: Sodium hypochlorite (1% concentration) plus EDTA gel can relieve postoperative acute inflammatory reaction and reduce pain occurrence and are some ideal auxiliary materials for the cleaning and preparation of root canal.
KEY WORDS sodium hypochlorite; EDTA gel; root canal cleaning; root canal preparation
根管治疗包括根管预备、清洗、成形、化学消毒、根管充填等多个环节,任一环节的不完善将会引起根管治疗失败的必然后果[1],其中,根管清洗是关键环节之一,由于机械预备不足以完全对根管壁进行清洁,因此采用化学试剂辅助根管的预备和冲洗是很有必要的。本文主要探讨了1%次氯酸钠联合EDTA凝胶用于辅助根管预备和冲洗的效果,并与常规3%双氧水和生理盐水交替冲洗进行对照分析,报告如下。
1 资料与方法
1.1 一般资料
选择2016年—2017年在我门诊确诊为牙髓炎并拟行根管治疗的100例患者,患牙共100颗。所有患者均无牙周炎、创伤史、急性炎症、血液系统疾病或其他系统性疾病,且均未接受过根管治疗,无根管闭锁、根尖孔破坏等情况的病例。100例患者随机分为观察组与对照组各50例(50颗患牙)。观察组患者年龄18~71岁,平均年龄(39.57±6.21)岁,其中男27例,女23例;前牙11颗,后牙39颗。对照组患者年龄19~74岁,平均年龄(40.22±6.05)岁,其中男28例,女22例;前牙13颗,后牙37颗。两组患者一般情况对比,无统计学差异(P>0.05)。
1.2 方法
两组均使用裂钻、球钻等进行开髓并髓腔修整,观察组在给患牙开髓之后,使用K锉预弯并行根管探查,探查过程中沾取乙二胺四乙酸(EDTA)凝胶导入根管,对根管疏通之后测量工作长度,1%次氯酸钠溶液对根管进行冲洗,不锈钢K锉步退法预备根管,在此过程中交替使用1%次氯酸钠和EDTA凝胶,直到根管清洁预备完成,之后置入纸捻干燥后,根管内置入樟脑酚CP棉捻,以氧化锌进行暂封。对照组除了是给予3%双氧水和生理盐水交替冲洗根管之外,其他操作均与观察组一致。endprint