The Effect of Nano-hybrid Composite Resin Denture Teeth on Mandibular Residual Ridge

Abstract

Aim: This study was conducted to evaluate radiographically the effect of nano-hybrid composite resin teeth on mandibular residual ridge using cone beam computerized tomography (CBCT). A comparative study. Materials and Methods: Twelve completely edentulous male patients were randomly divided into two groups according to the artificial tooth material used in complete denture construction. One group received complete dentures with nano-hybrid composite resin teeth and the other group received complete dentures with cross-linked acrylic resin teeth. CBCT was taken at the delivery, 6 months and 12 months follow-up appointments. The evaluation was done for height and width changes of the mandibular residual alveolar ridge at different anatomical sites either in the anterior or posterior part of the mandible. Results: Analysis was done by using two-tailed t-test revealed that increase in amount of bone loss in both groups which is in favor to patients wearing dentures with nanohybrid composite resin teeth, with no statistically significant difference between the two groups. Conclusion: Despite of introduction of new denture tooth material as nanohybrid composite resin teeth, the cross-linked acrylic resin teeth still considered the gold standard denture teeth regarding the degree of occlusal force transmission and preservation of residual alveolar ridge.

Effect of Different Artificial Teeth Materials on the Supporting Structure of Implant Retained Mandibular Overdenture

“…As the difference in bone loss may be attributed to many biomechanical factors as occlusal teeth form, length, width of occlusal table, type of teeth material and theory of occlusion being followed, also as the processing technique significantly increased the elastic modulus of artificial denture teeth here in this study all these factors were standardized between the two studied groups except the type of teeth material, thus the resulted difference in bone loss is due to that factor only. (23,24,25) This study showed that the type of occlusal material does in fact have a direct influence on the bone surrounding implants. Ciftci and Canay (26) support this finding as they reported that the intensity of the resulting stresses around an implant would be due to the physical qualities of the occlusal material used.…”