Color of denture resins

Area of Science:

• Materials Science
• Biomaterials Engineering
• Dental Prosthetics

Background:

• Selecting appropriate denture base materials is crucial for successful prosthetic rehabilitation.
• Denture resin color significantly impacts patient satisfaction and aesthetic outcomes.
• Existing research lacks comprehensive color characterization of commercially available denture resins for diverse ethnic groups.

Purpose of the Study:

• To objectively and visually assess the color properties of commercially available denture resins.
• To compare the color characteristics of denture resins intended for Black and Caucasian patients.
• To establish correlations between visual and spectrophotometric color measurements.

Main Methods:

• Visually determined the color of 24 denture resins using Munsell color tabs.
• Quantitatively measured resin color using reflection spectrophotometry.
• Analyzed data for correlations and significant differences between resin types.

Main Results:

• A strong correlation was found between Munsell visual color assessment and spectrophotometric data.
• Resins formulated for Black patients exhibited significantly higher specular reflectance compared to those for Caucasian patients.
• Opaqueness was greater in denture resins intended for Black patients than for Caucasian patients.

Conclusions:

• Spectrophotometry provides a reliable method for denture resin color characterization, correlating well with visual assessment.
• Denture resin color properties, specifically opacity and reflectance, differ between formulations for Black and Caucasian patients.
• These findings support the need for ethnically-specific denture resin color selection to achieve optimal aesthetic integration.