Soares J A, César C A
Disciplina de Endodontia da Faculdade Federal de Odontologia de Diamantina, Minas Gerais.
Pesqui Odontol Bras. 2001 Apr-Jun;15(2):138-44. doi: 10.1590/s1517-74912001000200010.
The aim of this study was to evaluate the incidence of postoperative pain and the type of periapical repair, after one-appointment endodontic treatment in asymptomatic patients who presented with pulpal necrosis and radiographically visible chronic periapical lesions. For that, after biomechanical preparation through the step down followed by the step back technique, aided by copious irrigation with 5.0% sodium hypochlorite solution, the filling of the root canals was carried out through the conventional technique, with gutta-percha cones and zinc oxide-eugenol cement. In the immediate postoperative period, 16.6% of all patients presented with spontaneous pain, although the incidence of severe pain--flare-ups--was 3.3%. After twelve months, all patients were asymptomatic and free of fistula, nevertheless only 46.4% exhibited complete resolution of the radiolucent periapical areas. Therefore, in a medium term, the one-appointment endodontic treatment showed 100% of clinical success, but showed a reduced rate of radiographic success.
本研究的目的是评估在无症状、出现牙髓坏死且根尖周有影像学可见慢性病变的患者中，一次就诊根管治疗术后疼痛的发生率以及根尖周修复的类型。为此，在采用逐步深入法随后再采用逐步后退法进行生物力学预备，并辅以大量5.0%次氯酸钠溶液冲洗后，通过传统技术用牙胶尖和氧化锌丁香酚水门汀进行根管充填。术后即刻，所有患者中有16.6%出现自发痛，尽管剧痛（疼痛发作）的发生率为3.3%。十二个月后，所有患者均无症状且无瘘管，然而仅有46.4%的患者根尖周透射区完全消失。因此，中期来看，一次就诊根管治疗显示出100%的临床成功率，但影像学成功率较低。
