Porcelain veneer bonding to dentin and the curing performance of plasma-arc light with respect to porcelain thickness
| Autor: | Atsushi Mine, Daizo Kawahara, Kazumi Watanabe, Hirofumi Yatani, Mitsuharu Okamoto |
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| Rok vydání: | 2003 |
| Předmět: |
Materials science
Time Factors Light Surface Properties Composite number Composite Resins Phase Transition law.invention law Hardness Materials Testing Dentin medicine Animals Dental Restoration Failure Composite material General Dentistry Curing (chemistry) Bond strength Porcelain Veneer Dental Bonding Dental Porcelain Resin Cements Plasma arc welding Dental Veneers medicine.anatomical_structure Halogen lamp Ceramics and Composites Knoop hardness test Thermodynamics Cattle Stress Mechanical |
| Zdroj: | Dental materials journal. 22(3) |
| ISSN: | 0287-4547 |
| Popis: | Plasma and halogen lamp units were used to photo-cure a composite resin for porcelain bonding. Mean shear bond strengths to dentin after light curing through porcelain of 1 and 2 mm thickness ranged from 20 to 27 MPa before and after thermocycling, indicating no significant effects due to porcelain thickness, curing method, or thermocycling, except for plasma curing for 3 s through porcelain of 2 mm thickness that overcame thermocycling. The mean bond strength in this group was significantly lower than both that before thermocycling and that of the porcelain of 1 mm thickness. Knoop hardness values for plasma curing for 3 s through porcelain of 2 mm thickness were significantly lower than the others. These results suggest that plasma light for 3 s is not sufficient to cure composite resin cement through porcelain of 2 mm thickness. |
| Databáze: | OpenAIRE |
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