Biomechanical substrate models for testing osteosynthesis screw
Experimental analyzes on bio-models can investigate biomechanical parameters, mainly, when models are able to simulate the facial skeleton. The aim of this study was to compare and correlate the density by micro-computerized tomography and drilling resistance of three differents bio-models or substr...
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| Main Authors: | , , |
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| Format: | Online |
| Language: | Portuguese |
| Published: |
Universidade Estadual de Campinas
2019
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| Subjects: | |
| Online Access: | https://econtents.sbu.unicamp.br/eventos/index.php/pibic/article/view/2166 |
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| Summary: | Experimental analyzes on bio-models can investigate biomechanical parameters, mainly, when models are able to simulate the facial skeleton. The aim of this study was to compare and correlate the density by micro-computerized tomography and drilling resistance of three differents bio-models or substrates (polyurethane foam block, femur bovine and swine ribs) when insert osteosynthesis screw. The substrate blocks density were analyzed using X-ray microtomography (microCT) and the final insertion torque was analyzed using a surgical motor. Results: Group 1 (femur bovine) obtained the highest values of density and Group 3 (Polyurethane foam 40 pcf) that showed the lowest value of density. Regarding the final Torque insertion values, Group 1 (femur bovine) and Group 3 (Polyurethane foam 40 pcf) showed higher results than Group 2 (swine ribs), with a statistical difference. Conclusion: The polyurethane blocks with a density of 40 PCF showed final insertion torque similar to the bovine femur blocks, demonstrating that they are bone substitutes suitable for screw insertion tests. |
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| ISSN: | 2596-1969 |
