Evaluating Dimension accuracy of three differently fabricated denture base materials

Document Type : Original Article

Authors

1 Associate Professor of Removable Prosthodontics, Faculty of Dentistry, Cairo University.

2 Lecturer of Removable Prosthodontics, Faculty of Dentistry, Fayoum University.

3 Associate Professor of of Oral Radiology, Faculty of Dentistry, Fayoum University.

Abstract

Objective: to compare the accuracy of three different denture base materials used in maxillary edentulous arch
Materials and Methods: ten patients were selected, with completely edentulous arches, for each patient three finial PMMA denture bases were done using different construction technique pack and press, computer aided design/ computer aided manufacturing CAD/CAM milled and selective laser sintering (SLS) PMMA denture base All denture bases in this study were submitted for CBCT scanning for dimension accuracy and volume linear evaluation.
Results: The mean and standard deviation values were calculated for each group in each test. Data were explored for normality using Kolmogorov-Smirnov and Shapiro-Wilk tests, data showed parametric (normal) distribution. A statistically significant difference was found between (Heat cure acrylic denture), (CAD/CAM denture) and (Laser sintering denture)
Conclusion: also press and pack technique is more time consuming regarding number of visits but less dimensional changes than CAD/CAM and (SLS) selective laser sintering.

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