Galvão Thales, Camargo Bernardo, Armada Luciana, Alves Flávio
MSc, Department of Endodontics, Faculty of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil.
PhD, Department of Endodontics, Faculty of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil.
J Clin Exp Dent. 2017 Jun 1;9(6):e762-e766. doi: 10.4317/jced.53818. eCollection 2017 Jun.
To compare the quality of calcium hydroxide paste fillings performed by three different techniques.
Sixty extracted maxillary central incisors, with previous root canal treatment, were decoronated and the gutta-percha was completely removed from the root canals. Subsequently, the canals were filled with a calcium hydroxide-based paste composed of calcium hydroxide, bismuth carbonate, and glycerin. The study samples were divided into the following three groups on the basis of three insertion techniques (n = 20, each): conventional technique using a hand instrument (MAN), rotary Lentulo spiral (LEN) technique, and a combined technique combining conventional hand files with sonic activation through the EndoActivator device (EA). The quality of fillings was evaluated radiographically by two examiners on the basis of the amount of voids and the apical limit.
The canals filled with LEN or MAN had less void volume compared to the EA technique ( >0.01), with no significant differences between them. Considering the apical limits, the three tested techniques showed comparable results ( >0.05).
A combined approach utilizing hand files with sonic activation showed no enhancements over the LEN or MAN techniques on the quality of intracanal placement of calcium hydroxide paste. Calcium hydroxide placement, EndoActivator, Lentulo spirals, intracanal medication, root canal treatment.
比较三种不同技术进行氢氧化钙糊剂充填的质量。
选取60颗已进行过根管治疗的上颌中切牙，截冠并将根管内的牙胶完全去除。随后，用由氢氧化钙、碳酸铋和甘油组成的氢氧化钙基糊剂充填根管。根据三种充填技术将研究样本分为以下三组（每组n = 20）：使用手动器械的传统技术（MAN）、旋转Lentulo螺旋技术（LEN）以及将传统手动锉与通过EndoActivator设备进行超声激活相结合的联合技术（EA）。由两名检查者根据空隙量和根尖界限通过影像学方法评估充填质量。
与EA技术相比，LEN或MAN充填的根管空隙体积更小（>0.01），二者之间无显著差异。考虑根尖界限，三种测试技术显示出可比的结果（>0.05）。
在氢氧化钙糊剂根管内充填质量方面，使用手动锉并结合超声激活的联合方法并未比LEN或MAN技术有更好的效果。氢氧化钙充填、EndoActivator、Lentulo螺旋、根管内用药、根管治疗。
