Abstract
BackgroundAdequate occlusal contacts are critical for masticatory function. The aim of this study is to evaluate the intercuspal occlusal contacts following conventional and digital wax-ups. MethodsStone casts of 15 patients undergoing prosthodontic treatment were gathered. Each cast was duplicated twice, so that conventional and digital wax-ups could be performed. To assess the occlusion, the following variables were evaluated: contact number per tooth (CNT), contact area per tooth (CAT) and contact accuracy. Further, the impact of tooth location in the arch was assessed. ResultsThe CNT and CAT after the wax-ups increased significantly following each wax-up, and this increase was more prominent for the posterior teeth than the anterior teeth. The conventional wax-up was associated with lower CNT than the digital wax-up, especially for the posterior teeth. On the other hand, the CAT was greater for the conventional wax-up than the digital wax-up for the anterior and posterior teeth. In terms of accuracy, the two wax-ups showed greater discrepancies than the pre-treatment casts, however, the magnitude of discrepancy was greater for the digital wax-up. ConclusionsThe two wax-ups improved the contact number and area. Despite the statistical variation between the wax-ups, the actual difference was minimal. Therefore, it could be speculated that the two wax-ups produced a similar outcome.
Published Version
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