| Full text | |
| Author(s): |
Almeida Ayres, Ana Paula
[1, 2]
;
Pongprueksa, Pong
[3]
;
De Munck, Jan
[1, 4]
;
Gre, Cristina Parise
[1, 4]
;
Nascimento, Fabio Dupart
[5]
;
Giannini, Marcelo
[6]
;
Van Meerbeek, Bart
[1, 4]
Total Authors: 7
|
| Affiliation: | [1] Univ Leuven, KU Leuven, BIOMAT, Dept Oral Hlth Sci, Kapucijnenvoer 7, Blok A, Box 7001, B-3000 Leuven - Belgium
[2] Piracicaba Dent Sch, Dept Dent Mat, Piracicaba, SP - Brazil
[3] Mahidol Univ, Dept Operat Dent & Endodont, Bangkok - Thailand
[4] Univ Hosp Leuven, Dent, Leuven - Belgium
[5] Univ Mogi das Cruzes, Ctr Interdisciplinary Biochem Res, Mogi Das Cruzes, SP - Brazil
[6] State Univ Campinas UNICAMP, Piracicaba Dent Sch, Dept Restorat Dent, Piracicaba, SP - Brazil
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | Journal of Adhesive Dentistry; v. 19, n. 5, p. 409-416, 2017. |
| Web of Science Citations: | 2 |
| Abstract | |
Purpose: To investigate the bonding efficacy of a multimode adhesive to plasma-treated and -untreated (control) dentin using a mini-interfacial fracture toughness (mini-iFT) test. Materials and Methods: Twenty human molars were used in a split-tooth design (n = 10). The adhesive Scotch-bond Universal (SBU; 3M ESPE) was applied in etch-and-rinse (E\&R) and self-etch (SE) modes. Mid-coronal dentin was exposed and covered with a standardized smear layer ground to 320 grit. One half of each dentin surface received 15 s of non-thermal atmospheric plasma (NTAP), while the other half was covered with a metallic barrier and kept untreated. Following the E\&R mode, dentin was plasma treated immediately after phosphoric acid etching. SBU and a resin-based composite were applied to dentin following the manufacturer's instructions. Six mini-iFT specimens were prepared per tooth (1.5 x 2.0 x 16 to 18 mm), and a single notch was prepared at the adhesive-dentin interface using a 150-mu m diamond blade under water cooling. Half of the mini-iFT specimens were immediately loaded until failure in a 4-point bending test, while the other half were first stored in distilled water for 6 months. After testing, the exact dimensions of the notch were measured with a measuring optical microscope, from which K-lc was determined. Results: Three-way ANOVA revealed higher mini-iFT for SBU applied in E\&R than SE mode for both storage times, irrespective of NTAP treatment. Conclusion: Overall, mini-iFT did not decrease for any of the experimental groups upon 6-month aging, while plasma treatment did not show a direct beneficial effect on mini-iFT of SBU applied in either E\&R or SE mode. (AU) | |
| FAPESP's process: | 15/05939-9 - Influence of non-thermal atmospheric pressure plasma on resin-dentin interface |
| Grantee: | Ana Paula Almeida Ayres |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |