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Year : 2016  |  Volume : 4  |  Issue : 2  |  Page : 69

Stabilizing the resin dentin bond

Department of Pedodontics and Preventive Dentistry, Kothiwal Dental College and Research Centre, Moradabad, Uttar Pradesh, India

Date of Web Publication21-Apr-2016

Correspondence Address:
Dr. Naveen Manuja
Department of Pedodontics and Preventive Dentistry, Kothiwal Dental College and Research Centre, Moradabad - 244 001, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2321-4619.180996

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How to cite this article:
Manuja N. Stabilizing the resin dentin bond. J Res Dent 2016;4:69

How to cite this URL:
Manuja N. Stabilizing the resin dentin bond. J Res Dent [serial online] 2016 [cited 2020 Jul 2];4:69. Available from: http://www.jresdent.org/text.asp?2016/4/2/69/180996

Dear Sir,

As current research in adhesive dentistry is focused on improving the stability of resin-dentin bonded interfaces, this review article appears to be the need of time.[1] The concept of dentin biomodification using proanthocyanidin (PA) seems to be interesting. The role of PA in preserving the resin-dentin bond durability has been thoroughly reviewed by the authors in this review. Till now, chlorhexidine has been considered the gold standard matrix metalloproteinase (MMP) inhibitor for preservation of resin-dentin bond. However, it has a limitation that it leaches out of the adhesive interface after 18 months. In addition, it does not strengthen the exposed collagen fibrils at the base of the hybrid layer. Therefore, use of PA as a collagen cross-linker as reported by the authors is beneficial as it stabilizes the demineralized dentin collagen matrix by inducing exogenous cross-links, thereby mechanically strengthening the collagen fibers as well as inhibits endogenous proteases. PA [2] and carbodiimide [3] are collagen cross-linking agents with MMP inhibitory properties and have low cytotoxicity. However, poor durability of resin-dentin bond cannot solely be attributed to degradation of not only exposed collagen but also hydrophilic resins. Ethanol wet bonding technique addresses the problem of resin hydrolysis and involves the use of hydrophobic resins over chemically dehydrated dentin matrix.[4] Thus, besides stabilizing the dentin matrix, modifications in adhesive monomer chemistry are required to reduce their hydrophilicity and prolong stability.

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  References Top

Nagpal R, Singh P, Singh S, Tyagi SP. Proanthocyanidin: A natural dentin biomodifier in adhesive dentistry. J Rest Dent 2016;4:1-6.  Back to cited text no. 1
Srinivasulu S, Vidhya S, Sujatha M, Mahalaxmi S. Shear bond strength of composite to deep dentin after treatment with two different collagen cross-linking agents at varying time intervals. Oper Dent 2012;37:485-91.  Back to cited text no. 2
Tezvergil-Mutluay A, Mutluay MM, Agee KA, Seseogullari-Dirihan R, Hoshika T, Cadenaro M, et al. Carbodiimide cross-linking inactivates soluble and matrix-bound MMPs, in vitro. J Dent Res 2012;91:192-6.  Back to cited text no. 3
Li F, Liu XY, Zhang L, Kang JJ, Chen JH. Ethanol-wet bonding technique may enhance the bonding performance of contemporary etch-and-rinse dental adhesives. J Adhes Dent 2012;14:113-20.  Back to cited text no. 4


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