CLINICAL STUDY |
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Year : 2011 | Volume
: 1
| Issue : 5 | Page : 255-259 |
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Effect of surface treatments on push-out strength of three glass fiber posts: An in vitro study
AVK Narene1, P Shankar2, R Indira2
1 Senior Lecturer, Dept. of Conservative and Endodontics, Sree Balaji Dental College and Hospital, Chennai, India 2 Professor, Dept. of Conservative and Endodontics, Ragas Dental College and Hospital, Chennai, India
Correspondence Address:
Dr. AVK Narene 8/4, East Tank Street, Thiruvottiyur, Chennai - 600 019 India
Source of Support: None, Conflict of Interest: None | Check |
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This in vitro study evaluated whether surface treatment for glass fiber posts has an effect on the push-out strength bonded to human root dentin. Fifty freshly extracted maxillary central incisors were endodontically-treated and post space preparation was done. A total of 50 FRC Postec, randomly divided into five groups (10 teeth each) were subjected to four different surface treatments: Silane only (II), Cojet and Silane (III), 10% sodium ethoxide and silane (IV) and 10% hydrogen peroxide (V). The control group (I) did not receive any surface treatment. The root canals were treated with 37% phosphoric acid and Excite DSC and all the posts were luted with Variolink II dual cure resin. A push-out test was done to measure bond strength at different levels of the root. Data were analyzed with one-way ANOVA and post-hoc Tukey HSD test. The results showed no significant differences between control group and silane treatment. Cojet and Silane (III) showed the highest bond strength of 15.50 4.2 MPa, which was statistically significant than all the other group (p < 0.001). The coronal segment showed the highest mean bond strength of 13.74 6.1 MPa (p < 0.001). |
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