Influence of environmental conditions on dentin bond strengths of recently developed dentin bonding systems
| Autor: | Akitomo Rikuta, Isao Yunoki, Masashi Miyazaki, Keishi Tsubota, Hideo Onose |
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| Rok vydání: | 2001 |
| Předmět: |
Hot Temperature
Materials science Surface Properties Statistics as Topic Dental Cements Dentistry Composite Resins Environmental temperature Polymethacrylic Acids stomatognathic system Alkanes Materials Testing Dentin medicine Animals Bisphenol A-Glycidyl Methacrylate Relative humidity Composite material General Dentistry Analysis of Variance Bond strength business.industry Environmental humidity Dental Bonding Maleates Temperature Water Tooth surface Humidity Silicon Dioxide Resin Cements Cold Temperature stomatognathic diseases medicine.anatomical_structure Distilled water Dentin-Bonding Agents Methacrylates Cattle Stress Mechanical Zirconium Adhesive business |
| Zdroj: | Journal of Oral Science. 43:35-40 |
| ISSN: | 1880-4926 1343-4934 |
| DOI: | 10.2334/josnusd.43.35 |
| Popis: | A study was conducted to investigate the influence of temperature and relative humidity (RH) on the bond strengths of several recently developed dentin bonding systems. Six environmental conditions, (A) 25+/-0.5 degrees C, 50+/-5% RH, (B) 25+/-0.5 degrees C, 80+/-5% RH, (C) 25+/-0.5 degrees C, 95+/-5 % RH, (D) 37+/-0.5 degrees C, 50 +/-5 % RH, (E) 37+/-0.5 degrees C, 80+/-5% RH, (F) 37+/-0.5 degrees C, 95+/-5 % RH were used. Bovine mandibular incisors were mounted in self-curing resin and the facial surfaces were ground on wet #600 SiC paper to expose the dentin. After the tooth surface had been treated according to each manufacturer's instructions, adhesives were applied, followed by condensation of resin composites into a mold placed on the dentin surface. Fifteen specimens per group were stored in distilled water at 37 degrees C for 24 h, and then shear-tested at a cross-head speed of 1.0 mm/min. Statistical analysis was carried out with two-way ANOVA followed by Tukey's test (P0.05). Dentin bond strengths decreased with increasing relative humidity but were not influenced by environmental temperature. Even though one-bottle adhesive systems require a wet dentin surface, their bond strengths are affected by an increase in environmental humidity. |
| Databáze: | OpenAIRE |
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