Comparison of bond strength of a fiber post cemented with various resin cements

Hyun-A Lee; Young-Gon Cho

doi:10.5395/JKACD.2008.33.6.499

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Original Article Comparison of bond strength of a fiber post cemented with various resin cements: Hyun-A Lee, Young-Gon Cho; Journal of Korean Academy of Conservative Dentistry 2008;33(6):499-506.
DOI: https://doi.org/10.5395/JKACD.2008.33.6.499
Published online: November 30, 2008

Department of Conservative Dentistry, College of Dentistry, Chosun University, Korea.

Corresponding Author: Young-Gon Cho. Department of Conservative Dentistry, Chosun University, 421 Seosuk-dong, Dong-gu, Gwangju 501-825, Korea. Tel: 82-62-220-3840, Fax: 82-62-232-9064, ygcho@chosun.ac.kr

• Received: March 19, 2007 • Revised: August 27, 2008 • Accepted: August 27, 2008

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Abstract
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Abstract

The purpose of this study was to compare the push-out strength of a fiber post cemented with various resin cements. Newly extracted 36 human mandibular premolars which had single root canal were selected and their crown portions were removed. The root canal was instrumented using PROTAPER™ system and obturated using continuous wave technique. In each root, a 9-mm deep post space was prepared. #2 translucent fiber post (DT Light post, Bisco Inc., Schaumburg, IL, U.S.A.) was cemented using injection technique with Uni-dose needle tip (Bisco) and six different resin cements. The tested resin cements were Duo-Link (Bisco Inc., Schaumburg, IL, U.S.A.), Variolink II (Ivoclar-Vivadent AG, Schann, Liechtenstein), Panavia F (Kuraray Medical Inc., Okayama, Japan), Multilink Automix (Ivoclar-Vivadent AG, Schann, Liechtenstein), RelyX Unicem (3M ESPE Dental Products, St. Paul, MN, U.S.A.), and Maxcem (Kerr Co., CA, U.S.A.). After storage in distilled water for 24 hours, each root was transversally sectioned into approximately 1-mm thick sections. This procedure resulted in 6 serial sections per root. Push-out test was performed using a universal testing machine (EZ Test, Shimadzu Co.) with a crosshead speed of 1 mm/min. The data were analyzed with one-way ANOVA and Tukey HSD (p=0.05).

The push-out strength of the groups which cemented fiber post with Panavia F and Multilink Automix were lower than those of the other groups. But, there were no statistically significant difference among groups at a probability level of 0.05.
Keywords: Fiber post; Resin cement; Root dentin; Push-out test; Injection technique

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Figure 1

Device designed for push-out test and universal testing machine

Table 1

Resin cements tested in this study

Table 2

Push-out strength for each group

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