Dentin adhesives application deviations: Effects on permeability and nanoleakage
| Autor: | Joana Cruz, Bernardo Romão de Sousa, Catarina Coito, Marcos A. Vargas, Alexandre Cavalheiro, Manuela Lopes, Ana Maria Silva |
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| Rok vydání: | 2021 |
| Předmět: |
Dentin permeability
Materials science Potassium oxalate Post hoc 0206 medical engineering Dental Cements 02 engineering and technology Oxalate Permeability 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine stomatognathic system Adhesives Tensile Strength Adhesive system Materials Testing Dentin medicine Humans Composite material General Dentistry Dental Leakage Dental Bonding 030206 dentistry 020601 biomedical engineering Resin Cements medicine.anatomical_structure chemistry Permeability (electromagnetism) Dentin-Bonding Agents Ceramics and Composites Adhesive |
| Zdroj: | Dental materials journal. 40(5) |
| ISSN: | 1881-1361 |
| Popis: | The purpose was to evaluate the effect that deviations from the recommended protocol of a two-step etch-and-rinse adhesive system has on permeability and nanoleakage. One hundred and twenty dentin disks were treated with a two-step etch-and-rinse adhesive system, according to the manufacturer's instructions, or using five simulated deviations from the recommended protocol: applying potassium oxalate, reducing the application time of the adhesive, avoiding adhesive drying, aggressively drying the adhesive, and double application of adhesive. Kruskal-Wallis and Tukey's post hoc comparisons were used to evaluate the permeability reduction (α=0.05). Twelve additional dentin disks were prepared for transmission electron microscope (TEM) analysis of nanoleakage. Aggressive drying, adding additional layers of adhesive or using oxalate reduced dentin permeability and yielded a better infiltration of the hybrid layer, whereas reducing the application time or less drying the adhesive did not to reduce dentin permeability, caused extensive nanoleakage, showing immediate compromised dentin sealing. |
| Databáze: | OpenAIRE |
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