Microtensile bond strength of self-adhesive resin composite to dentin

Authors

Suparit Chantchaimongkol
Sirivimol Srisawasdi

Publication Date

2015-01-01

Abstract

Objective To evaluate the effect of pretreatment and aging process, by means of water storage, on microtensile bond strength (μTBS) of a self-adhesive resin composite to dentin. Materials and methods 72 extracted human molars were selected. μTBS was evaluated using mid-coronal dentin. According to pretreatment methods, type of materials and water storage time, teeth were randomly divided into 4 groups: control group: dentin pretreatment with Single BondTM Universal followed by FiltekTM Z350 XT Flowable; group without pretreatment followed by Vertise® FlowTM.group with pretreatment with 37.5% phosphoric acid followed by Vertise® FlowTM; and group with pretreatment with 37.5% phosphoric acid and Optibond® Solo PlusTM followed by Vertise® FlowTM. Each group was further randomly divided into 2 subgroups, total of 8 groups to be tested for 24 hours or 3 months. The specimens were tested for μTBS after water storage, and failure modes were recorded. Data were analyzed using two-way ANOVA and Bonferroni post hoc test (p = 0.05). Results The μTBS revealed the highest in group of dentin pretreatment with 37.5% phosphoric acid and Optibond® Solo PlusTM followed by Vertise® FlowTM at 24 hours (42.63 ± 4.57 MPa) and the lowest in group without pretreatment followed by Vertise® FlowTM at 3 months (23.39 ± 3.88 MPa). Considering the effect of pretreatment, groups with pretreatment showed significantly higher μTBS than groups without pretreatment. In terms of influence of aging process, μTBS were significantly decreased by water storage. Conclusion Dentin pretreatment and water storage had effect on μTBS of self-adhesive resin composite to dentin.

DOI

10.58837/CHULA.CUDJ.38.1.3

First Page

21

Last Page

34

Recommended Citation

Chantchaimongkol, Suparit and Srisawasdi, Sirivimol (2015) "Microtensile bond strength of self-adhesive resin composite to dentin," Chulalongkorn University Dental Journal: Vol. 38: Iss. 1, Article 3.
DOI: 10.58837/CHULA.CUDJ.38.1.3
Available at: https://digital.car.chula.ac.th/cudj/vol38/iss1/3