Evaluation of the Effect of Stainless Steel and Nickel-Titanium Spreaders Penetration Depth on Apical Microleakage Using Lateral Compaction Method

Tabrizizadeh, Mahdi and Mokhtari, Masoud and Mohammedi, Zahed and Mahmodizadeh, Hosein (2014) Evaluation of the Effect of Stainless Steel and Nickel-Titanium Spreaders Penetration Depth on Apical Microleakage Using Lateral Compaction Method. Journal of Mashhad Dental School, 38 (4). pp. 313-320.

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Abstract

Introduction: The purpose of this study was to evaluate the effect of spreader penetration depth and its alloy on apical microleakage using lateral compaction method. Materials & Methods: For conducting this in vitro lab study, 68 extracted maxillary central incisors were instrumented using the step-back method, and randomly divided into the following four experimental groups: A) stainless steel (S.S) spreader with penetration to the working length B) Nickel-titanium (Ni-Ti) spreader with penetration to the working length C) S. S spreader with penetration 1mm short of working length D) Ni-Ti sprader with penetration 1mm short of working length. Microleakage evaluation was conducted using dye penetration method. Data were statistically analysed by Two-Way ANOVA test. Results:The data showed that the least dye penetration happened in group D. There were significant differences in mean microleakage among the groups (P=0.002). Conclucsion:According the results of this study, it seems that spreader alloyand its penetration may have a role in the amount of apical microleakage. However, before recommending Ni-Ti spreaders, further in vivo and in vitro studies should be carried out.

Item Type: Article
Subjects: WU Dentistry. Oral surgery
Divisions: Journals > Journal of Mashhad Dental School
Depositing User: jmds jmds
Date Deposited: 21 Sep 2017 12:26
Last Modified: 21 Sep 2017 12:26
URI: http://eprints.mums.ac.ir/id/eprint/1960

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