Effect of immersion cleansers on the bond strength between a denture base resin and acrylic resin teeth
| Autor: | Marco Antonio Compagnoni, Ana Carolina Pero, André Gustavo Paleari, Danny Omar Mendoza Marin, Priscila Mattos Scavassin, Andressa Rosa Perin Leite |
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| Rok vydání: | 2013 |
| Předmět: |
Universal testing machine
Biotone Materials science Polymers and Plastics Bond strength business.industry General Chemical Engineering Dentistry Biomaterials chemistry.chemical_compound chemistry Distilled water Cleanser visual_art Sodium hypochlorite visual_art.visual_art_medium Adhesive Composite material business Acrylic resin |
| Zdroj: | International Journal of Adhesion and Adhesives. 44:180-183 |
| ISSN: | 0143-7496 |
| DOI: | 10.1016/j.ijadhadh.2013.02.011 |
| Popis: | The aim of the present study was to assess the shear bond strength between a heat-polymerized denture base resin and acrylic resin teeth after immersion in different denture cleansers by simulating a 180-day use. Two acrylic teeth (Biotone, Biotone IPN, Dentsply Ind. e Com., Rio de Janeiro, RJ, Brazil) were chosen for bonding to a heat-polymerized denture base resin (Lucitone 550- Dentsply Ind. e Com., Rio de Janeiro, RJ, Brazil). Eighty specimens were produced and divided into eight groups (n=10) according to their experimental condition (distilled water, 2% chlorhexidine digluconate, 1% sodium hypochlorite and Corega Tabs). Shear bond strength tests (MPa) were performed with a universal testing machine at a crosshead speed of 0.5 mm/min. Data were analyzed by two-way analysis of variance (ANOVA) and Student-Newman–Keuls' multiple comparisons post hoc analysis (α=.05). The shear bond strength results revealed statistically significant differences between the groups. For the Biotone IPN tooth, significantly lower shear bond strength values were found for the group immersed in sodium-perborate solution (4.48±2.18 MPa) than for the group immersed in distilled water (control group) (10.83±1.84 MPa). For Biotone, significantly higher bond strength values (10.04±3.28 MPa) were found for the group immersed in Corega Tabs than for the control group (5.45±2.93 MPa). The immersion in denture cleanser solutions was more detrimental to the conventional acrylic denture tooth (Biotone) than to the highly cross-linked denture tooth (Biotone IPN). However, this effect was not observed for the groups immersed in Corega Tabs solution, regardless of the type of denture tooth. |
| Databáze: | OpenAIRE |
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