Advanced Composite Dental Materials and Adhesive Technology
Summary
Advanced composite dental materials integrate a polymerisable resin matrix with inorganic fillers and coupling agents to replicate the mechanical, aesthetic and biological functions of natural tooth structures. Innovations in filler morphology and surface chemistry have yielded composites with enhanced strength, wear resistance and reduced polymerisation shrinkage. Adhesive technology has evolved from purely micromechanical bonding towards systems incorporating functional monomers that chemically interact with enamel and dentin substrates, forming stable interfaces in the challenging wet environment of the oral cavity. Self-etch and universal adhesives streamline clinical procedures by reducing steps and technique sensitivity, while bioinspired primers modelled on marine mussel proteins offer additional collagen cross-linking and enzymatic protection. Nanofillers and bioactive additives further promote remineralisation and long-term interface integrity. Emerging curing modalities and optimised photoinitiator formulations maximise the degree of conversion, minimising residual monomer and improving biocompatibility. Collectively, these advances address persistent challenges such as secondary caries, marginal leakage and restoration longevity, supporting a shift towards minimally invasive, durable and patient-centred restorative treatments with global clinical significance.
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Advanced Composite Dental Materials and Adhesive Technology publication trend
The graph below shows the total number of articles in advanced composite dental materials and adhesive technology across all publications each year (not limited to Nature Index journals).
Technical terms
Resin composite: A restorative material comprising polymerisable organic monomers and dispersed inorganic fillers.
Filler: Inorganic particles added to resins to improve mechanical strength, wear resistance and optical properties.
Coupling agent: A chemical bridge, typically a silane, that enhances adhesion between fillers and resin matrix.
Functional monomer: A molecule within an adhesive that chemically bonds to dental substrates, improving interface stability.
Degree of conversion: The percentage of monomeric double bonds converted to polymer chains during curing.
Micromechanical interlocking: Physical engagement between resin and textured filler surfaces that strengthens the composite interface.
Self-etch adhesive: An adhesive system that partially demineralises and infiltrates tooth tissues in a single step.
Polymerisation shrinkage: The volumetric contraction of resin during curing that can lead to interfacial stress and gaps.
References
- Micromechanical interlocking structure at the filler/resin interface for dental composites: a review. International Journal of Oral Science (2023).
- Oxidized Dopamine Acrylamide Primer to Achieve Durable Resin–Dentin Bonding. Research (2023).
- 10-MDP Based Dental Adhesives: Adhesive Interface Characterization and Adhesive Stability—A Systematic Review. Materials (2019).
- Self-Etch Adhesive Systems: A Literature Review. Brazilian Dental Journal (2015).
- A review of dental composites: Challenges, chemistry aspects, filler influences, and future insights. Composites Part B Engineering (2021).
- The Photoinitiators Used in Resin Based Dental Composite—A Review and Future Perspectives. Polymers (2021).
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