Effect of dentin and fiber post surface treatments with fumaric acid on the bonding ability of fiber posts

Microscopy Research and Technique - Tập 83 Số 10 - Trang 1290-1296 - 2020
Esma Sarıçam1, Merve Arslan2
1Department of Endodontics, Faculty of Dentistry, Ankara Yildirim Beyazit University, Ankara, Turkey
2Vocational School of Health Services, Kırıkkale University, Kırıkkale, Turkey

Tóm tắt

AbstractThis study investigated the effects of fumaric acid on push‐out bond strength when applied to dentin surfaces and fiber posts. The root canals of 60 mandibular premolar teeth were instrumented and obturated. After removing two thirds of filling material, teeth were prepared according to six randomized groups (n = 10/group) defined by two fiber post surface treatments (0.7% fumaric acid or 9% hydrofluoric acid) and three dentin conditioning treatments [control (no conditioning); 17% ethylenediamine tetraacetic acid (EDTA); or 0.7% fumaric acid]. After fiber post‐cementation, three 1‐mm thick discs were obtained from each tooth by transverse sectioning, and each disc underwent push‐out bond strength testing. Data were analyzed with a one‐way analyses of variance (anova) and t tests; p < .05 was considered statistically significant. Failure modes were determined by stereomicroscopy, and the surface characteristics of dentin and fiber posts were observed by scanning electron microscopy. Push‐out bond strength was greater for the group in which the post surface treated with hydrofluoric acid and the dentin surface treated with fumaric acid than the nontreated dentin and hydrofluoric acid‐treated post group (p < .05). There were no significant differences between other comparison pairs (p > .05). A combination of fumaric acid dentin conditioning and hydrofluoric acid fiber post treatment strengthened the bonding ability of fiber posts.

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Thông tin xuất bản

Microscopy Research and Technique

Tập 83 Số 10

1290-1296

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