Functional fillers for dental resin composites.

Area of Science:

• Materials Science
• Biomaterials Engineering
• Dental Research

Background:

• Dental resin composites (DRCs) are widely used for dental caries repair.
• Restoration failures, including bulk fracture and secondary caries, remain significant challenges.
• Existing DRCs require enhanced properties for improved longevity and efficacy.

Purpose of the Study:

• To review and discuss the role of functional fillers in improving dental resin composites.
• To classify functional fillers based on their specific contributions to DRC performance.
• To provide insights into current research and future trends in functional filler development for DRCs.

Main Methods:

• Literature review of functional fillers for dental resin composites.
• Classification of fillers based on morphology (e.g., whisker, fiber, nanotube) and ion release (e.g., Ag+, Ca2+, F-).
• Analysis of filler impact on mechanical properties and anticaries activity.

Main Results:

• Morphological fillers (whisker, fiber, nanotube) enhance mechanical properties of DRCs.
• Ion-releasing fillers (Ag+, Ca2+, F-) inhibit secondary caries formation.
• Functional fillers significantly improve the performance and lifespan of dental restorations.

Conclusions:

• Functional fillers are crucial for overcoming limitations in current dental resin composites.
• Tailoring filler properties offers a promising strategy for developing next-generation restorative materials.
• Future research should focus on synergistic effects and advanced filler designs for superior dental applications.