The impact of different surface treatments on repair bond strength of conventionally, subtractive-, and additive-manufactured denture bases.

Objective: This study aimed to examine the shear bond strength (SBS) of repair material to conventionally, subtractive-, and additive-manufactured denture bases after different surface treatments.

Materials And Methods: Disk-shaped test specimens (N = 300) were prepared from denture base materials produced by one conventional (Procryla), one subtractive (Yamahachi), and one additive (Curo Denture) method. The test specimens were randomly divided into five groups (n = 10) and exposed to a variety of surface treatments-Group A: no surface treatment; Group B: grinding with silicon carbide paper; Group C: sandblasting; Group D: erbium: yttrium-aluminum-garnet laser; and Group E: plasma.

The effect of various surface treatments on the repair bond strength of denture bases produced by digital and conventional methods.

There is limited information on the repairability of prostheses produced with digital technology. This study aims to evaluate various surface treatments on flexural bond strength of repaired dentured base resins produced by digital and conventional methods. A total of 360 samples were prepared from one heat-polymerized, one CAD/CAM milled and one 3D printed denture base materials.

In vitro evaluation of color replication of metal ceramic specimens using visual and instrumental color determinations.

Statement Of Problem: It remains unclear whether or not the performance of intraoral colorimetric devices is accurate.

Purpose: The purpose of this study was to evaluate the color replication of metal ceramics using an intraoral colorimeter and visual shade determination.

Material And Methods: Twenty-five metal ceramic specimens were prepared to match 5 different shades (A1, B1, C3, D3, A3.

In vivo and in vitro assessment of an intraoral dental colorimeter.

Purpose: The purpose of this study was to assess the performance of an intraoral dental colorimeter.

Materials And Methods: In vivo repeatability of an intraoral colorimeter was assessed by performing color measurements of 30 individuals' right maxillary central incisor. Three consecutive measurements from each individual were made.

Influence of cement shade and water storage on the final color of leucite-reinforced ceramics.

Leucite-reinforced ceramics have a translucent structure, which may have an advantage when fabricating esthetic restorations. However, the different shades of cement and water storage may adversely affect the final color of translucent restorations. Over time, the final color of a restoration may be significantly affected by the shade of the cement.