Stress on implant-supported fixed prostheses with different numbers of abutments after the application of acrylic resin
| Autor: | André Cervieri, Marcos Michelon Naconecy, Rosemary Sadami Arai Shinkai, Tomás Geremia, Marina Rechden Lobato Palmeiro, Leonardo Barcellos |
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| Rok vydání: | 2013 |
| Předmět: |
Materials science
Silver Time Factors Surface Properties medicine.medical_treatment Abutment Acrylic Resins Dentistry Dental Abutments Prosthesis Stress (mechanics) Dental Materials Materials Testing medicine Electric Impedance Humans Acrylic resin Dental Implants business.industry Tension (physics) Temperature Biomechanical Phenomena Dental Veneers Torque visual_art visual_art.visual_art_medium Denture Partial Fixed Veneer Implant Dental Prosthesis Implant-Supported Stress Mechanical Oral Surgery business Implant supported Palladium Dental Alloys |
| Zdroj: | The Journal of prosthetic dentistry. 113(4) |
| ISSN: | 1097-6841 |
| Popis: | Statement of problem Clinical procedures and laboratory processing techniques inevitably induce stress in the implant/abutment/prosthesis system and may have negative effects when different numbers of implants are used. Purpose The purpose of the study was to evaluate the tension on the abutments of implant-supported fixed prostheses and to determine the effect of the application of an esthetic veneer (acrylic resin) and the number of abutments (5 or 4). Material and methods Four palladium-silver alloy cast bars were fabricated to simulate implant-supported fixed complete prostheses. Strain gauges were fixed on the abutments to measure the tension before and after the application of the esthetic veneer. The values of tension were measured in models with 5 or 4 abutments. Data were analyzed with a repeated measures ANOVA. Results No statistically significant differences were found for the main factors (esthetic veneer, P =.22; number of abutments, P =.14) despite the large effect size. Conclusions The results of this study suggest that the tension in the abutments of an implant-supported fixed prosthesis is not affected by the application of acrylic resin veneering or by reducing the number of abutments. |
| Databáze: | OpenAIRE |
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