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http://dx.doi.org/10.5395/JKACD.2007.32.2.087

A STUDY ON TRANSPORTATION OF APICAL FORAMEN AFTER OVERINSTRUMENTATION BY PROFILE® ;PROTAPERTM AND K3TM IN SIMULATED CANALS WITH DIFFERENT CURVATURES  

Yang, Hyun (Department of Conservative Dentistry, Shool of Dentistry, Chonnam National University)
Yang, In-Seok (Department of Conservative Dentistry, Shool of Dentistry, Chonnam National University)
Hwang, Yun-Chann (Department of Conservative Dentistry, Shool of Dentistry, Chonnam National University)
Hwang, In-Man (Department of Conservative Dentistry, Shool of Dentistry, Chonnam National University)
Yoon, Suk-Ja (Department of Oral and Maxillofacial Radiology, School of Dentistry, Chonnam National University)
Kim, Won-Jae (Department of Oral Physiology, DSRI, 2nd stage of BK21, School of Dentistry, Chonnam National University)
Oh, Won-Mann (Department of Conservative Dentistry, School of Dentistry, Chonnam National University)
Publication Information
Restorative Dentistry and Endodontics / v.32, no.2, 2007 , pp. 87-94 More about this Journal
Abstract
This study was done to evaluate transportation of the apical foramen after 0.5 mm overinstrumentation by ProFile, ProTaper and $K^3$ in simulated resin root canal. Sixty simulated resin root canal with a curvature of J and S-shape were divided into two groups. Each group consisted of three subgroups with 10 blocks according to the instruments used: $ProFile^{(R)},\;ProTaper^{TM},\;and\;K^{3TM}$. Simulated resin root canal was prepared by ProFile, ProTaper and $K^3$ with 300 rpm by the crown-down preparation technique. Pre- and post-instrumentation apical foramen images were overlapped and recorded with Image-analyzing microscope 100X (Camcope, Sometech Inc, Korea). The amounts of difference in width and dimension on overlapped images were measured after reference points were determined by Image Analysis program ($Image-Pro^{(R)}$ Express, Media Cybernetic, USA). Data were analyzed using Kruskal-Wallis and Mann-Whitney U-test. The results suggest that ProFile showed significantly less canal transportation and maintained original apical foramen shape better than $K^3$ and ProTaper.
Keywords
ProFile; ProTaper; $K^3$; Simulated J and S-shape canal;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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