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首页> 外文期刊>Journal of Clinical and Diagnostic Research >Influence of Working Length on Post-operative Pain after Single or Two-visit Endodontic Treatment: A Randomised Clinical Trial
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Influence of Working Length on Post-operative Pain after Single or Two-visit Endodontic Treatment: A Randomised Clinical Trial

机译：工作时间对单次或两次牙髓治疗后术后疼痛的影响：一项随机临床试验

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Microorganisms in the cemental canal can lead to the development of periapical lesions and its mechanical removal by means of overinstrumentation may be more favourable for the success of endodontic treatment. However, instrumentation of the apical foramen remains a controversial issue because it can be a traumatic procedure to the periapical tissues.Aim: Considering that post-operative pain is an essential feature of symptomatic periradicular inflammation, this clinical trial evaluated the influence of two different foraminal working lengths on post-operative pain and mechanical allodynia after endodontic treatment completed in single-visit or two-visit.Materials and Methods: Forty eight adult patients indicated for primary endodontic treatment of tooth with asymptomatic apical periodontitis were randomly assigned to 4 groups (n = 12): SV0 ? single-visit and instrumentation up to the apical foramen; SV+1 ? single-visit and instrumentation 1 mm beyond the apical foramen; TV0 ? two-visit and instrumentation up to the apical foramen; TV+1 ? two-visit and instrumentation 1 mm beyond the apical foramen. All participants received a visual analog scale to record their assessment of pain at 3 hours to 7 days and data were analysed statistically by Kruskal-Wallis test (a = 5%). For mechanical allodynia evaluation, bite force measurement was performed using a digital gnathodynamometer just before and 7 days after treatment and data were analysed statistically by ANOVA and Tukey?s test (a = 5%).Results: No statistically significant difference was found among the 4 groups in relation to post-operative pain at all time points assessed. Bite force values were significantly higher 7 days after endodontic treatment, indicating that there was a significant reduction of mechanical pain in all groups, with no significant difference among them.Conclusion: All groups exhibited the same rate of post-operative pain at the time points assessed and endodontic treatment effectively increased the mechanical pain thresholds.
机译：牙髓管中的微生物可导致根尖周病变的发展，并且通过过度器械将其机械去除可能更有利于牙髓治疗的成功。然而，根尖孔的器械仍然是一个有争议的问题，因为它可能是对根尖周组织的创伤性手术。目的：考虑到术后疼痛是症状性根尖周炎的基本特征，该临床试验评估了根尖周炎的影响。一次或两次就诊完成牙髓治疗后两种不同的椎间孔工作长度，分别用于术后疼痛和机械性异常性疼痛。材料与方法：四十八例接受无症状性根尖性牙周炎的初次牙髓牙髓治疗的成人患者分配给4组（n = 12）：SV0？单次检查和器械检查直至根尖孔; SV + 1？一次就诊和器械，距根尖孔1毫米; TV0？两次访问和器械检查直至根尖孔;电视+1？两次就诊，距离根尖孔1毫米。所有参与者均接受视觉模拟量表记录其在3小时至7天的疼痛评估，并通过Kruskal-Wallis检验对数据进行统计分析（a = 5％）。对于机械性异常性疼痛的评估，在治疗前和治疗后7天使用数字式测功机进行咬合力测量，并通过ANOVA和Tukey's检验对数据进行统计学分析（a = 5％）。结果：无统计学差异。在评估的所有时间点均与术后疼痛相关的4组患者中发现。牙髓治疗后7天的咬合力值显着较高，表明所有组的机械疼痛均明显减轻，但两组之间无显着差异。结论：所有组在术后7个月的疼痛发生率均相同在评估的时间点和牙髓治疗有效地增加了机械性疼痛阈值。

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