Selective masking for thin indirect restorations: Can the use of opaque resin affect the dentine bond strength of immediately sealed preparations?
| Autor: | Pascal Magne, Julia Hehn, Luis Leonildo Boff, Maria Paula Gandolfi Paranhos, Elisa Oderich |
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| Rok vydání: | 2011 |
| Předmět: |
Dental Stress Analysis
Masking (art) Molar Materials science Opacity Dentistry Composite Resins law.invention Acid Etching Dental stomatognathic system Optical microscope law Tensile Strength Materials Testing Humans Composite material General Dentistry business.industry Bond strength Dental Bonding Resin Cements stomatognathic diseases Inlays Dentin-Bonding Agents Tooth Discoloration Adhesive business |
| Zdroj: | Journal of Dentistry. 39:707-709 |
| ISSN: | 0300-5712 |
| DOI: | 10.1016/j.jdent.2011.07.005 |
| Popis: | Purpose Evaluate the dentine bond strength using different methods of application of opaque resins to mask dentine discoloration. Materials and methods Dentine was exposed on 21 extracted molars which were assigned to 3 groups: G1: immediate dentine sealing (IDS). G2: IDS + opaque. G3: IDS with adhesive resin mixed with opaque. After 1 week, teeth were restored and beams were fabricated for microtensile testing. Optical microscopy was used to analyse the failure mode. Results Bond strength mean values were statistically different: G1 55.20 MPa > G2 45.79 MPa > G3 18.96 MPa. Failure modes were mostly adhesive for G1 and G3. G2 presented mostly mixed failures. Conclusion The use of opaque resin to mask discoloured dentine results in a decrease of bond strength. |
| Databáze: | OpenAIRE |
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