Abstract
The purpose of this study was to investigate the micro-shear bond strength of SE Bond to Er:YAG laser irradiated or bur-cut dentin after immersion in water for 24 h, 7 d and 6 months, respectively. Forty dentin slices obtained from twenty extracted human molars were prepared and divided into two groups: twenty specimens for laser group and twenty specimens for bur group. The surfaces of dentin slices of twenty specimens were exposed to pulsed-laser-irradiation. The other twenty specimens were polished by 600-grit silicone paper. Applying SE Bond system, each prepared dentin surface was adhered to eight resin cylinders. The micro-shear bond strength tests were performed after the slices had been immersed in deionized water for 24 h, 7 d and 6 months, respectively. The bond strength results were statistically analyzed using one-way ANOVA and t-test at a significance level of 0.05. The bond strength results of lased dentin after 6-month immersion were significantly lower than those in other groups. The bond strength of SE Bond to Er:YAG lased dentin was significantly decreased in the long term. The conclusion can be used for the improvement in the method of lased dentin adhesive restorations.
| Original language | English |
|---|---|
| Pages (from-to) | 1-7 |
| Number of pages | 7 |
| Journal | Shenzhen Daxue Xuebao (Ligong Ban)/Journal of Shenzhen University Science and Engineering |
| Volume | 34 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 30 2017 |
| Externally published | Yes |
Keywords
- 2-step self-etching adhesive
- Bonding
- Dentin
- Er:YAG laser
- Laser application
- Micro-shear bond strength
- Resin
ASJC Scopus subject areas
- Computer Science (miscellaneous)
- Engineering (miscellaneous)