A Comparative Study of Heat and Self-Cured Acrylic Resins on Color Stability of 5 Brands of Denture Teeth

Abstract

Background: Denture teeth play a critical role in overall aesthetic outcomes of removable complete dentures, and long-term maintenance of these outcomes depends on the color stability of the prosthetic teeth. The characteristics of denture base resins play a significant role in prosthetic clinical performance and aesthetics. Objectives: The purpose of this study was to assess the effect of two flasking materials on the color stability of five brands of denture teeth that were immersed in commonly consumed beverages. Materials and Methods:In the present study 560 denture teeth (20 series) were invested with heat-and cold-cured acrylic resin. All the specimens were thermo cycled between 4°C and 60°C, with 60 Seconds dwell times for 1000 cycles. Subsequently, the specimens in each group were divided into four subgroups based on the immersion medium: coffee, tea, cola, or distilled water. Digital images of the teeth were taken before immersion and 30 days after immersion. The color samples were measured using the CIE L * a * b

Effects of various disinfectants on surface roughness and color stability of thermoset and 3D-printed acrylic resin

“…The attributes inherent in denture base resins hold pivotal significance in both the clinical functionality and aesthetic appeal of the prosthesis. 7 An exemplary denture base material demonstrates biocompatibility with oral tissues, showcases superior aesthetics, exhibits exceptional mechanical properties - particularly in compressive strength, bending strength, and hardness - maintains substantial bond strength with artificial teeth and liner materials, allows for potential repair or alteration, and ensures dimensional accuracy. 8 Polymethyl methacrylate (PMMA) stands as the most prevalent material employed in the construction of denture bases, primarily due to its affordability, ease of utilization, straightforward manufacturing process, and simplicity of repair relative to other available denture-making materials.…”