Current Oral Health Reports

, Volume 3, Issue 3, pp 229–233 | Cite as

Biodegradation of Resin-Dentin Bonds: a Clinical Problem?

  • Ricardo M. CarvalhoEmail author
  • Adriana P. Manso
Dental Restorative Materials (M Özcan, Section editor)
Part of the following topical collections:
  1. Topical Collection on Dental Restorative Materials


Biodegradation of the resin-dentin interfaces has been a focus of research over the last decade. Most studies show that degradation of both the collagen and the adhesive take place within short periods of time after bonding, and claim that such loss of structure at the interface opens opportunity for secondary caries initiation and progression thus leading to failure of the restoration. Open margins are further compromised by thermo-mechanical loading and enzymes produced by local bacteria. While marginal gaps appear to be unavoidable, it is remarkable that resin composite restorations can deliver successful clinical service for many years provided preventive and conservative measures to reduce the caries-risk of the patient are applied along with the restorative treatment. This review will look into the evidence from laboratory studies that investigated degradation of bonds and the consequences leading to clinical failure and balance that against the results of clinical trials that evidence the factors associated with the durability and clinical success of resin composite restorations.


Resin composite restorations Degradation Secondary caries Marginal gap Clinical success Functional load 



This study was supported by UBC Start-Up funds.

Compliance with Ethical Standards

Conflict of Interest

Ricardo M. Carvalho and Adriana P. Manso declare that they have no conflicts of interest.

Human and Animal Rights and Informed Consent

This article does not contain any studies with human or animal subjects performed by any of the authors.


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Copyright information

© Springer International Publishing AG 2016

Authors and Affiliations

  1. 1.Department of Oral Biological and Medical Sciences, Faculty of Dentistry, Division of BiomaterialsThe University of British ColumbiaVancouverCanada

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