Stress analysis on the free-end distal extension of an implant-supported mandibular complete denture
Braz. oral res
;
23(2): 182-189, 2009. ilus, graf
Artículo
en Inglés
| LILACS
| ID: lil-522299
ABSTRACT
A comparative and qualitative analysis of the tensions generated in the cantilever region of an implant-supported mandibular complete denture was conducted using the three-dimensional finite element method. The mechanical properties of the components were input in the model and a load of 15 N was applied in pre-determined points. In the first simulation, the load was applied on the occlusal surface of the first premolar. In the second simulation, it was applied on the first and second premolars. In the third simulation, it was applied on the first and second premolars and on the first molar. The different occlusion patterns produced similar tension distributions in the cantilever region, which followed a similar pattern in the three simulations. In all of the cases, the highest levels of tension were located in the region of the first implant. However, as the loads were dislocated distally, the tensions increased considerably. The more extensive the cantilever, the more compromised will be the infrastructure, the prosthetic components and the implants. Regardless of the length of the cantilever, the highest tensions will always be located in the region of the implant next to the load application point.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Prótesis Dental de Soporte Implantado
/
Imagenología Tridimensional
/
Oclusión Dental
/
Análisis del Estrés Dental
/
Dentadura Completa Inferior
Tipo de estudio:
Investigación cualitativa
Idioma:
Inglés
Revista:
Braz. oral res
Asunto de la revista:
Odontología
Año:
2009
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Federal University of Minas Gerais/BR
/
Pontifical Catholic University of Minas Gerais/BR
Similares
MEDLINE
...
LILACS
LIS