Effectiveness of Final lrrigant Protocols for Debris Removal from Simulated Canal Irregularities

被引:22
作者
Justo, Aline Martins [1 ]
da Rosa, Ricardo Abreu [1 ]
Santini, Manuela Favarin [1 ]
Cardoso Ferreira, Maria Beatriz [2 ]
Pereira, Jefferson Ricardo [3 ]
Hungaro Duarte, Marco Antonio [4 ]
Reis So, Marcus Vinicius [1 ]
机构
[1] Univ Fed Rio Grande do Sul, Dept Conservat Dent, BR-90035003 Porto Alegre, RS, Brazil
[2] Univ Fed Rio Grande do Sul, Inst Basic Hlth Sci, Dept Pharmacol, BR-90035003 Porto Alegre, RS, Brazil
[3] Univ Southern Santa Catarina, Sch Dent, Dept Prosthodont, Tubarao, SC, Brazil
[4] Univ Sao Paulo, Bauru Sch Dent, Dept Endodont, Bauru, SP, Brazil
关键词
Dentin debris; endodontics; irrigation systems; passive ultrasonic irrigation; root canal irrigation; PASSIVE ULTRASONIC IRRIGATION; PLACED DENTIN DEBRIS; ELECTRON-MICROSCOPIC EVALUATION; SMEAR LAYER REMOVAL; ROOT CANALS; HAND INSTRUMENTATION; ROTARY INSTRUMENTS; CLEANING EFFICACY; K-FILE; ACTIVATION;
D O I
10.1016/j.joen.2014.08.006
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Introduction: The aim of this in vitro study was to compare the effectiveness of saline, 25% sodium hypochlorite, and 2% chlorhexidine, with or without passive ultrasonic irrigation (PUI), in debris removal from simulated canal irregularities within prepared root canals. Methods: Ninety bovine lateral incisors were randomly divided into 3 main groups (n = 30) based on the irrigant and prepared with hand files attached to an oscillating handpiece (NSK, Tokyo, Japan) up to a size #80 K-file. Next, the teeth were split longitudinally, and a standardized groove was prepared into the apical third and filled with dentin debris. After the halves were reassembled, they were placed in a muffle. Each main group was randomly subdivided into 2 groups (n = 14) and was treated with different final irrigation protocols. In the sodium hypochlorite/PUI, chlorhexidine/PUI, and saline/PUI groups, the solution was ultrasonically activated 3 times for 20 seconds. In the remaining groups, PUI was not performed. Specimens were scored for debris removal and analyzed under a scanning electron microscope. Results: An association was observed between the score of debris removal and protocols using PUI (P < .05). No association was observed between the scores of debris removal and the irrigants (P = .87). Conclusions: Final irrigation protocols that used PUI were more effective in removing debris from simulated canal irregularities into the apical third than those that did not use it.
引用
收藏
页码:2009 / 2014
页数:6
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