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EVALUATION OF THE QUALITY OF FOUR ROOT CANAL OBTURATION TECHNIQUES USING MICRO-COMPUTED TOMOGRAPHY
اندودانتیکس
Endodontics
پژوهشي
Research
<p> <strong>Introduction:</strong></p><p> One of the key factors in successful endodontic therapy is to adequately fill the root canals. The aim of this in vitro study was to compare the quality of four different root canal obturation techniques: cold lateral condensation (CLC), warm vertical condensation (WVC), Obtura II (OII) and Gutta Flow (GF) by using micro-computed tomography (micro CT). </p><p> <strong>Materials and Methods</strong>:</p><p> A total of 20 extracted maxillary first molars prepared with ProTaper files, were randomly divided into four groups. Micro CT was used to measure the internal volume of root canals. Following application of AH26 sealer to canal obturation, new micro-CT images were taken and the volume percentage (VP) of voids, gutta-percha and sealer at different levels were calculated with CT software. Data was statistically analyzed using Kruskal-Wallis and Mann-Whitney U tests. </p><p> <strong>Results:</strong> </p><p> The highest percentage of filling material was observed in GF group followed by OII with no statistically significant difference (P>0.05). These two groups had a significantly more acceptable filling than WVC and CLC groups (P<0.05). Voids were detected in all samples. There was a significant difference between the highest and the lowest percentage of voids in CLC (19.6%) and GF groups (6.7%), respectively. In the apical third, CLC and OII showed the highest and the lowest percentage of voids (5.5% and 2.6%) and the lowest and highest percentage of gutta-percha (76.52% and 94.26%), respectively. These differences were statistically significant (P<0.05). </p><p> <strong>Conclusion:</strong></p><p> None of the root canal filled teeth were gap-free. GF and CLC techniques showed the highest and lowest VP of obturation materials, respectively. </p><hr><p></p><p> <strong>Source: </strong>Iranian Endodontic Journal </p><p> <a href="http://journals.sbmu.ac.ir/index.php/iej/article/view/3642" target="_blank"><font color="#0000ff">Full Text</font></a></p>
Computed Tomography; Micro-Computed Tomography; Root Canal Filling Materials; Root Canal Obturation
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http://idai.ir/browse.php?a_code=A-10-32-2079&slc_lang=fa&sid=1
Mandana
Naseri
10031947532846009739
10031947532846009739
No
Iranian Center for Endodontic Research, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran/Department of Endodontics, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Ali
Kangarlou
10031947532846009740
10031947532846009740
No
Iranian Center for Endodontic Research, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran/Department of Endodontics, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Atefeh
Khavid
atefehkhavid@gmail.com
10031947532846009741
10031947532846009741
Yes
Students Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
Mostafa
Goodini
10031947532846009742
10031947532846009742
No
Students Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran