Dr. Hongseok AnOSSAMA HASSAN RAFFA2022-06-022022-06-02https://drepo.sdl.edu.sa/handle/20.500.14154/61877Results: The mean average error in the sample was -0.4 μm. The average upper limit of 95% confidence interval was 36.5 μm, while the average lower limit of 95% confidence interval was -37.3 μm. The mean RMS of the errors found was 18.9 μm. Conclusions: Merging digitized definitive impressions to correct marginal defects resulted in master casts with high level of accuracy relative to the standard reference.en