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Título: | Countertorque testing and histomorphometric analysis of various implant surfaces in canines: a pilot study. |
Autor: | Pebé, Pablo Barbot, Roberto Trinidad, Javier Pesquera, A. Lucente, J. Nishimura, R. Nasr, H. |
Tipo: | Artículo |
Descriptores: | IMPLANTACION DENTAL ENDOOSEA, GRABADO ACIDO DENTAL, ANALISIS DE VARIANZA, ANIMALES, MATERIALES DENTALES, PERROS, FEMUR, MICROSCOPIA ELECTRONICA DE RASTREO, OSEOINTEGRACION, TITANIO, PROPIEDADES DE SUPERFICIE |
Fecha de publicación: | 1997 |
Resumen: | As surface roughness may play a role in the mechanical attachment of an implant surface to bone, various implant surfaces have been prepared and analyzed by removal torque (countertorque) or push-out tests in a variety of animal model systems. Rougher surfaces generally have displayed higher mechanical testing values, indicating a stronger implant-bone interface. This pilot study was undertaken to test the countertorque values for integrated threaded implants with surfaces prepared by machining, blasting, and acid-etching, to compare the various implant surface types histomorphometrically for percentage of bone-implant contact under loaded and unloaded conditions, and to determine the degree of correlation between countertorque values and bone-implant contact with varying degrees of surface roughness. The results of this animal investigation suggest that the strength of the bone-implant interface, as determined by countertorque testing, is influenced by different surface characteristics. Acid-etched surfaces resisted countertorque forces more successfully as compared with blasted or machined surfaces. Histologic evaluation of bone contact with the various implant surfaces did not demonstrate a definite advantage for rougher surfaces in regard to percentage of bone contact at the light microscopic level. |
EN: | Implant Dent ; 6(4): 259-65, 1997. |
Citación: | Pebé, P, Barbot, R, Trinidad, J y otros."Countertorque testing and histomorphometric analysis of various implant surfaces in canines: a pilot study". Implant Dent ; 6(4): 259-65. [en línea] 1997 DOI: 10.1097/00008505-199700640-00002 |
Aparece en las colecciones: | Publicaciones Académicas y científicas hasta 2019 - Facultad de Odontología |
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Countertorque testing and histomorphometric analysis of various implant sufaces in canines , a pilot study.pdf | 909,73 kB | Adobe PDF | Visualizar/Abrir |
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