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Dentin bonding--questions for the new millennium.
1Department of Operative Dentistry, CB#7450, 302 Brauer Hall, University of North Carolina, Chapel Hill, NC 27599-7450, USA. jorge_perdigao@dentistry.unc.edu
The Journal of Adhesive Dentistry
|December 1, 2001
Summary
Dentin bonding remains challenging due to its wet, organic nature. This review explores recent concepts, questioning unsupported convictions and highlighting the need for research into vital substrate behavior for improved dental adhesive systems.
Area of Science:
- Dental materials science
- Operative dentistry
- Biomaterials engineering
Background:
- Dentin bonding presents significant challenges compared to enamel bonding.
- The wet, organic nature of dentin, with its tubular structure, complicates adhesive procedures.
- Advancements in adhesive systems and fluoride products have transformed operative dentistry.
Purpose of the Study:
- To review current concepts in dentin bonding.
- To critically evaluate research supporting existing dentin bonding convictions.
- To identify knowledge gaps regarding the dynamic behavior of dentin in vital environments.
Main Methods:
- Literature review of recent concepts in dentin bonding.
- Critical analysis of clinical retention and laboratory bond strength studies.
- Identification of limitations in current research methodologies.
Main Results:
- Bonding to enamel is reliable, but dentin bonding is more complex.
- Current adhesive systems are often recommended for application on moist dentin to ensure monomer penetration.
- Existing studies often lack data on the dynamic behavior of the dentin substrate in vivo.
Conclusions:
- Further research is needed to fully characterize changes in resin-infiltrated dentin.
- The role of proteins in dentin bonding requires further investigation.
- Understanding the dynamic behavior of dentin is crucial for developing more effective dental adhesives.