Journal article
Influence of methyl mercaptan on the repair bond strength of composites fabricated using self‐etch adhesives
European journal of oral sciences, Vol.123(1), pp.46-52
02/2015
DOI: 10.1111/eos.12164
PMID: 25545663
Abstract
The influence of methyl mercaptan on the repair bond strength of composites fabricated using self‐etch adhesives was investigated. The surface free‐energies were determined by measuring the contact angles of test liquids placed on composites that had been immersed in different concentrations of methyl mercaptan (0.01, 0.1, and 1.0 M). To determine the repair bond strength, self‐etch adhesives were applied to the aged composite, and then newly added composites were condensed. Ten samples of each specimen were subjected to shear testing at a crosshead speed of 1.0 mm min−1. Samples were analyzed using two‐way anova followed by Tukey's honestly significant difference (HSD) test. Although the dispersion force of the composites remained relatively constant, their polar force increased slightly as the concentration of methyl mercaptan increased. The hydrogen‐bonding forces were significantly higher after immersion in 1.0 M methyl mercaptan, leading to higher surface‐free energies. However, the repair bond strengths for the repair restorations prepared from composites immersed in 1.0 M methyl mercaptan were significantly lower than for those immersed in 0.01 and 0.10 M methyl mercaptan. Considering the results of this study, it can be concluded that the repair bond strengths of both the aged and newly added composites were affected by immersion in methyl mercaptan solutions.
Details
- Title: Subtitle
- Influence of methyl mercaptan on the repair bond strength of composites fabricated using self‐etch adhesives
- Creators
- Miho Yokokawa - Nihon UniversityAkitomo Rikuta - Nihon UniversityAkimasa Tsujimoto - Nihon UniversityKenji Tsuchiya - Nihon UniversitySyo Shibasaki - Nihon UniversitySaki Matsuyoshi - Nihon UniversityMasashi Miyazaki - Nihon University
- Resource Type
- Journal article
- Publication Details
- European journal of oral sciences, Vol.123(1), pp.46-52
- DOI
- 10.1111/eos.12164
- PMID
- 25545663
- ISSN
- 0909-8836
- eISSN
- 1600-0722
- Number of pages
- 7
- Grant note
- Sato Fund Japan Society for the Promotion of Science (23592810; 23792186) Dental Research Center of the Nihon University School of Dentistry, Japan
- Language
- English
- Date published
- 02/2015
- Academic Unit
- Operative Dentistry
- Record Identifier
- 9984177007402771
Metrics
12 Record Views