Statement of the problem With the advent of new technologies, the use of automated techniques has increased many folds in dentistry. The selective laser melting technique and Milling are attracting interest in prosthetic dentistry. The marginal fit is a key criterion for fixed restorations. Aim The aim of the study was to evaluate the marginal fit of Milled crowns versus the fit of Sintered crowns. Null Hypothesis The null hypothesis is that the average marginal gap widths would not be significantly different between the Laser Sinteredand Milledcrowns.
Materials and Method 20 crowns each of milled and sintered, were fabricated and tested under the 3D microscope and analyzed with an independent two-sample t-test with equal variance assumed. Results The sintered crowns showed better marginal fit than milled crowns. The null hypothesis was rejected. Conclusion Within the limitations of…
