Stresses in Implant-Supported Fixed Complete Dentures with Different Screw-Tightening Sequences and Torque Application Modes
| Autor: | Tomás Geremia, Marcos Michelon Naconecy, Marina Rechden Lobato Palmeiro, Rosemary Sadami Arai Shinkai, André Cervieri, Leonardo Barcellos |
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| Rok vydání: | 2018 |
| Předmět: |
Dental Stress Analysis
Analysis of Variance Denture Complete business.industry medicine.medical_treatment Bone Screws General Medicine Structural engineering Torque Residual stress medicine Humans Dental Prosthesis Implant-Supported Oral Surgery Dentures business Implant supported Strain gauge Mathematics |
| Zdroj: | The International Journal of Prosthodontics. 31:492-493 |
| ISSN: | 0893-2174 |
| DOI: | 10.11607/ijp.5876 |
| Popis: | PURPOSE To compare the effects of different screw-tightening sequences and torque applications on stresses in implant-supported fixed complete dentures supported by five abutments. MATERIALS AND METHODS Strain gauges fixed to the abutments were used to test the sequences 2-4-3-1-5; 1-2-3-4-5; 3-2-4-1-5; and 2-5-4-1-3 with direct 10-Ncm torque or progressive torque (5 + 10 Ncm). Data were analyzed using analysis of variance and standardized effect size. RESULTS No effects of tightening sequence or torque application were found except for the sequence 3-2-4-1-5 and some small to moderate effect sizes. CONCLUSION Screw-tightening sequences and torque application modes have only a marginal effect on residual stresses. |
| Databáze: | OpenAIRE |
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