Color stability of 3D-printed denture resins: effect of aging, mechanical brushing and immersion in staining medium.

Purpose: This study evaluated and compared the color stability of 3D-printed and conventional heat-polymerized acrylic resins following aging, mechanical brushing, and immersion in staining medium.

Materials And Methods: Forty disc-shaped specimens (10 mm in diameter and 3 mm thick) were prepared from two 3D-printed [DentaBASE (DB) and Denture 3D+ (D3D)] and one conventional polymethylmethacrylate (PMMA) denture materials. The specimens were thermo-cycled, subjected to mechanical brushing, and were immersed in either coffee, lemon juice, coke, or artificial saliva (AS) to simulate one and two years of oral use.

Knowledge and attitudes of dental interns toward denture adhesives in King Saud University, Riyadh, Saudi Arabia.

Objective: The objective of this study was to evaluate the knowledge and attitudes of dental interns at King Saud University College of Dentistry (KSUCD) regarding denture adhesives (DAs).

Materials And Methods: Surveys were distributed to dental interns at KSUCD ( = 100). Cross-tabulations with the Pearson-™s Chi-square test were used to compare variables using the Statistical Package for Social Sciences ( ≤ 0.