Evaluation of apically extruded debris during root canal retreatment with two different rotary systems followed by a self-adjusting file

被引:3
|
作者
Cakici, Fatih [1 ]
Cakici, Elif B. [1 ]
Kucukekenci, Funda Fundaoglu [1 ]
机构
[1] Ordu Univ, Fac Dent, Dept Endodont, TR-52000 Ordu, Turkey
来源
INTERNATIONAL JOURNAL OF ARTIFICIAL ORGANS | 2016年 / 39卷 / 02期
关键词
Apical debris; Mtwo retreatment system; Protaper retreatment system; Retreatment; Self-Adjusting File; GUTTA-PERCHA; ENDODONTIC RETREATMENT; FILLING MATERIAL; D-RACE; REMOVAL; INSTRUMENTS; EXTRUSION; PROTAPER;
D O I
10.5301/ijao.5000467
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Purpose: To compare the amount of apically extruded debris during root canal retreatment using ProTaper retreatment system (Dentsply Maillefer, Ballaigues, Switzerland), ProTaper retreatment system with Self-Adjusting File (SAF) system (ReDent-Nova, Ra'anana, Israel), Mtwo retreatment system (VDW, Munich, Germany), Mtwo retreatment system with SAF instruments. Methods: In total, 72 extracted human mandibular incisor teeth were used. All root canals were prepared with ProTaper universal (Dentsply Maillefer) up to F2 file and filled with gutta percha and AH plus sealer using cold lateral condensation before being assembled randomly into 4 groups (n = 18 each). Root canal filling materials were removed using the ProTaper retreatment system, the ProTaper retreatment system followed by SAF system, Mtwo retreatment system and Mtwo retreatment system followed by SAF system. Debris extruded apically during the removal of canal filling material was collected into preweighed Eppendorf tubes. The tubes were then stored in an incubator at 70 degrees C for 5 days. The weight of the dry extruded debris was established by subtracting the preretreatment and postretreatment weight of the Eppendorf tubes for each group. The data obtained were analyzed using Kruskal-Wallis test. Results: All retreatment techniques caused the apical extrusion of debris. There was no significant difference between the groups statistically (p>0.05). Conclusions: The results of this study showed that SAF system after Mtwo retreatment system and ProTaper retreatment system for improving retreatment has no significant effect on the amount of debris extruded apically.
引用
收藏
页码:68 / 71
页数:4
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