Kleier Donald J, Averbach Robert E, Mehdipour Omid
School of Dental Medicine, University of Colorado Denver, Aurora, CO.
School of Dental Medicine, University of Colorado Denver, Aurora, CO.
J Endod. 2008 Nov;34(11):1346-1350. doi: 10.1016/j.joen.2008.07.021. Epub 2008 Aug 30.
To better understand the etiology associated with sodium hypochlorite accidents, we surveyed diplomates of the American Board of Endodontics. Of the 314 diplomates who responded, 132 reported experiencing a sodium hypochlorite accident. Questions were asked about the age and sex of the patient as well as the tooth being treated, preoperative signs, symptoms, diagnosis, and radiographic appearance. Data were analyzed by chi-square tests. Significantly more women experienced sodium hypochlorite accidents compared with men (p < 0.0001). More maxillary teeth than mandibular teeth (p < 0.0001) and more posterior than anterior teeth (p < 0.0001) were involved. A diagnosis of pulp necrosis with radiographic findings of periradicular radiolucency were positively associated with such accidents (p < 0.0001). Most respondents reported that patient signs and symptoms completely resolved within a month. The occurrence of an accident, by itself, did not adversely affect the endodontic prognosis of the involved tooth. Anatomic variations may contribute significantly to the occurrence of a sodium hypochlorite accident.
为了更好地了解与次氯酸钠事故相关的病因，我们对美国牙髓病学委员会的专科医师进行了调查。在314名做出回应的专科医师中，有132人报告曾经历过次氯酸钠事故。我们询问了患者的年龄、性别、正在治疗的牙齿、术前体征、症状、诊断以及影像学表现等问题。数据采用卡方检验进行分析。与男性相比，经历次氯酸钠事故的女性明显更多（p < 0.0001）。受累的上颌牙比下颌牙更多（p < 0.0001），后牙比前牙更多（p < 0.0001）。牙髓坏死的诊断以及根尖周透射影的影像学表现与此类事故呈正相关（p < 0.0001）。大多数受访者报告称患者的体征和症状在一个月内完全缓解。事故的发生本身并未对受累牙齿的牙髓治疗预后产生不利影响。解剖变异可能在很大程度上导致次氯酸钠事故的发生。
