[Temperature change during polymerization of self-curing resin for rebasing].

Area of Science:

• Polymer science
• Biomaterials science
• Dental materials

Context:

• Direct rebasing of dentures is a common dental procedure.
• Exothermic polymerization of self-curing resins can cause patient discomfort.
• Understanding curing characteristics is crucial for optimizing clinical application.

Purpose:

• To evaluate the polymerization characteristics of four self-curing resins for direct rebasing.
• To assess the impact of resin thickness and powder/monomer ratios on heat generation and setting times.
• To identify conditions that may cause patient discomfort during the rebasing procedure.

Summary:

• Maximum temperatures, time to maximum temperature, and setting times were measured for four self-curing resins at 37°C.
• Increased resin thickness significantly elevated maximum temperature and setting time.
• Powder/monomer ratios markedly influenced all measured parameters, highlighting their importance in controlling resin behavior.

Impact:

• Provides data to guide the selection and manipulation of self-curing resins for improved patient comfort in dental rebasing.
• Informs clinicians about factors affecting heat generation and setting kinetics, enabling better chairside management.
• Contributes to the development of safer and more comfortable dental biomaterials.