Strategies to prevent hydrolytic degradation of the hybrid layer - A review

Leo Tjäderhane, Fabio D. Nascimento, Lorenzo Breschi, Annalisa Mazzoni, Ivarne L.S. Tersariol, Saulo Geraldeli, Arzu Tezvergil-Mutluay, Marcela Carrilho, Ricardo M. Carvalho, Franklin R. Tay, David H. Pashley

Research output: Contribution to journalReview article

174 Citations (Scopus)

Abstract

Objective Endogenous dentin collagenolytic enzymes, matrix metalloproteinases (MMPs) and cysteine cathepsins, are responsible for the time-dependent hydrolysis of collagen matrix of hybrid layers. As collagen matrix integrity is essential for the preservation of long-term dentin bond strength, inhibition of endogenous dentin proteases is necessary for durable resin-bonded restorations. Methods Several tentative approaches to prevent enzyme function have been proposed. Some of them have already demonstrated clinical efficacy, while others need to be researched further before clinical protocols can be proposed. This review will examine both the principles and outcomes of techniques to prevent collagen hydrolysis in dentin-resin interfaces. Results Chlorhexidine, a general inhibitor of MMPs and cysteine cathepsins, is the most tested method. In general, these experiments have shown that enzyme inhibition is a promising approach to improve hybrid layer preservation and bond strength durability. Other enzyme inhibitors, e.g. enzyme-inhibiting monomers, may be considered promising alternatives that would allow more simple clinical application than chlorhexidine. Cross-linking collagen and/or dentin matrix-bound enzymes could render hybrid layer organic matrices resistant to degradation. Alternatively, complete removal of water from the hybrid layer with ethanol wet bonding or biomimetic remineralization should eliminate hydrolysis of both collagen and resin components. Significance Understanding the function of the enzymes responsible for the hydrolysis of hybrid layer collagen has prompted several innovative approaches to retain hybrid layer integrity and strong dentin bonding. The ultimate goal, prevention of collagen matrix degradation with clinically applicable techniques and commercially available materials may be achievable in several ways.

Original languageEnglish (US)
Pages (from-to)999-1011
Number of pages13
JournalDental Materials
Volume29
Issue number10
DOIs
StatePublished - Oct 1 2013

Fingerprint

Collagen
Dentin
Enzymes
Degradation
Hydrolysis
Cathepsins
Chlorhexidine
Resins
Cysteine
Enzyme inhibition
Biomimetics
Matrix Metalloproteinase Inhibitors
Enzyme Inhibitors
Clinical Protocols
Matrix Metalloproteinases
Restoration
Durability
Peptide Hydrolases
Ethanol
Monomers

Keywords

  • Chlorhexidine
  • Cysteine cathepsins
  • Degradation
  • Dentin bonding
  • Durability
  • Enzyme inhibition
  • Enzymes
  • Hybrid layer
  • Matrix metalloproteinases
  • Review

ASJC Scopus subject areas

  • Materials Science(all)
  • Dentistry(all)
  • Mechanics of Materials

Cite this

Tjäderhane, L., Nascimento, F. D., Breschi, L., Mazzoni, A., Tersariol, I. L. S., Geraldeli, S., ... Pashley, D. H. (2013). Strategies to prevent hydrolytic degradation of the hybrid layer - A review. Dental Materials, 29(10), 999-1011. https://doi.org/10.1016/j.dental.2013.07.016

Strategies to prevent hydrolytic degradation of the hybrid layer - A review. / Tjäderhane, Leo; Nascimento, Fabio D.; Breschi, Lorenzo; Mazzoni, Annalisa; Tersariol, Ivarne L.S.; Geraldeli, Saulo; Tezvergil-Mutluay, Arzu; Carrilho, Marcela; Carvalho, Ricardo M.; Tay, Franklin R.; Pashley, David H.

In: Dental Materials, Vol. 29, No. 10, 01.10.2013, p. 999-1011.

Research output: Contribution to journalReview article

Tjäderhane, L, Nascimento, FD, Breschi, L, Mazzoni, A, Tersariol, ILS, Geraldeli, S, Tezvergil-Mutluay, A, Carrilho, M, Carvalho, RM, Tay, FR & Pashley, DH 2013, 'Strategies to prevent hydrolytic degradation of the hybrid layer - A review', Dental Materials, vol. 29, no. 10, pp. 999-1011. https://doi.org/10.1016/j.dental.2013.07.016
Tjäderhane L, Nascimento FD, Breschi L, Mazzoni A, Tersariol ILS, Geraldeli S et al. Strategies to prevent hydrolytic degradation of the hybrid layer - A review. Dental Materials. 2013 Oct 1;29(10):999-1011. https://doi.org/10.1016/j.dental.2013.07.016
Tjäderhane, Leo ; Nascimento, Fabio D. ; Breschi, Lorenzo ; Mazzoni, Annalisa ; Tersariol, Ivarne L.S. ; Geraldeli, Saulo ; Tezvergil-Mutluay, Arzu ; Carrilho, Marcela ; Carvalho, Ricardo M. ; Tay, Franklin R. ; Pashley, David H. / Strategies to prevent hydrolytic degradation of the hybrid layer - A review. In: Dental Materials. 2013 ; Vol. 29, No. 10. pp. 999-1011.
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AB - Objective Endogenous dentin collagenolytic enzymes, matrix metalloproteinases (MMPs) and cysteine cathepsins, are responsible for the time-dependent hydrolysis of collagen matrix of hybrid layers. As collagen matrix integrity is essential for the preservation of long-term dentin bond strength, inhibition of endogenous dentin proteases is necessary for durable resin-bonded restorations. Methods Several tentative approaches to prevent enzyme function have been proposed. Some of them have already demonstrated clinical efficacy, while others need to be researched further before clinical protocols can be proposed. This review will examine both the principles and outcomes of techniques to prevent collagen hydrolysis in dentin-resin interfaces. Results Chlorhexidine, a general inhibitor of MMPs and cysteine cathepsins, is the most tested method. In general, these experiments have shown that enzyme inhibition is a promising approach to improve hybrid layer preservation and bond strength durability. Other enzyme inhibitors, e.g. enzyme-inhibiting monomers, may be considered promising alternatives that would allow more simple clinical application than chlorhexidine. Cross-linking collagen and/or dentin matrix-bound enzymes could render hybrid layer organic matrices resistant to degradation. Alternatively, complete removal of water from the hybrid layer with ethanol wet bonding or biomimetic remineralization should eliminate hydrolysis of both collagen and resin components. Significance Understanding the function of the enzymes responsible for the hydrolysis of hybrid layer collagen has prompted several innovative approaches to retain hybrid layer integrity and strong dentin bonding. The ultimate goal, prevention of collagen matrix degradation with clinically applicable techniques and commercially available materials may be achievable in several ways.

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