Photoelastic comparison of posterior denture occlusions.
The development of stress patterns was observed within a photoelastic model under complete mandidular dentures. Characteristic stress patterns were related to type of tooth material. Plastic teeth transmitted less force than porcelain teeth. Cusp teeth induced concentrated regions of force within the model that contrasted with the uniform distribution of force observed with flat teeth. The dentist should be aware of the biomechanical problems associated with any posterior denture occlusion in relation to the residual alveolar ridge.
D000539:Alveolar Process / Q000502:physiology*; D003766:Dental Occlusion; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D003826:Denture, Complete, Lower; D006801:Humans; D008953:Models, Anatomic; D008954:Models, Biological; D010969:Plastics; D014093:Tooth, Artificial
D010969:Plastics; D003776:Dental Porcelain