* Influence of laser etching on enamel and dentin bond strength of Silorane System Adhesive.
- The aim of this in vitro study was to evaluate the shear bond strength (SBS) of Silorane System Adhesive to enamel and dentin surfaces that had been etched with different procedures. Ninety freshly extracted human third molars were used for the study. After the teeth were embedded with buccal surfaces facing up, they were randomly divided into two groups. In group I, specimens were polished with a 600-grit silicon carbide (SiC) paper to obtain flat exposed enamel. In group II, the overlying enamel layer was removed and exposed dentin surfaces were polished with a 600-grit SiC paper. Then, the teeth in each group were randomly divided into three subgroups according to etching procedures: etched with erbium, chromium:yttrium-scandium-gallium-garnet laser (a), etched with 35% phosphoric acid (b), and non-etched (c, control). Silorane System Adhesive was used to bond silorane restorative to both enamel and dentin. After 24-h storage in distilled water at room temperature, a SBS test was performed using a universal testing machine at a crosshead speed of 1 mm/min. The data were analyzed using two-way ANOVA and Bonferroni tests (p < 0.05). The highest SBS was found after additional phosphoric acid treatment in dentin groups (p < 0.05). There were no statistically significant differences between the laser-etched and non-etched groups in enamel and dentin (p > 0.05). The SBS of self-etch adhesive to dentin was not statistically different from enamel (p > 0.05). Phosphoric acid treatment seems the most promising surface treatment for increasing the enamel and dentin bond strength of Silorane System Adhesive.
=>意義深い, 重大な, 意味のある, 意味ありげな, 重要な
Overview of adj significant
The adj significant has 4 senses (first 4 from tagged texts)
1. (18) significant, important -- (important in effect or meaning; "a significant change in tax
laws"; "a significant change in the Constitution"; "a significant contribution"; "significant
details"; "statistically significant")
2. (9) significant, substantial -- (fairly large; "won by a substantial margin")
3. (3) significant -- (too closely correlated to be attributed to chance and therefore indicating a
systematic relation; "the interaction effect is significant at the .01 level"; "no significant
difference was found")
4. (2) meaning, pregnant, significant -- (rich in significance or implication; "a meaning look")
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PubMed database: last updated on 2020-08-05 (c)sirasawa 2019