In vitro enzymatic biodegradation of adhesive resin in the hybrid layer.

Journal of Biomedical Materials Research. Part a
Yuan ZouSteven R Armstrong

Abstract

Penetration of adhesives into the demineralized dentin surface and their subsequent conversion are critically important to longevity of the adhesive resin (AR)-dentin bond. The durability of the resin-dentin bond is investigated by monitoring the change of adhesive concentration within the hybrid layer (HL) of aged specimens using Raman spectroscopy. Absolute molar concentrations of Bis-GMA and HEMA were measured across the HL of resin-dentin specimens 24 h after photopolymerization and after 24-week storage in one of three media: artificial saliva (SAL), SAL containing cholesterol esterase to attack resin (EST), and SAL containing bacterial collagenase to attack collagen (COL). No significant difference among these groups for both Bis-GMA and HEMA molar concentrations at 24-h storage was found; however, concentrations decreased from the AR to the middle of the HL. Concentrations remained unchanged at any resin-dentin position after aging in SAL. In the HL, concentrations significantly decreased with aging in COL and tended to decrease in EST. While showing potential enzymatic biodegradative effects of endogenous matrix metalloproteinases and salivary esterases, this methodology may also prove to be a valuable assessment of new...Continue Reading

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Apr 24, 2008·Journal of Biomedical Materials Research. Part a·Yuan ZouSteven R Armstrong

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Citations

Dec 24, 2011·Dental Materials : Official Publication of the Academy of Dental Materials·Ricardo M CarvalhoDavid H Pashley
Sep 20, 2011·Dental Materials : Official Publication of the Academy of Dental Materials·Martino ColonnaLorenzo Breschi
Jun 27, 2014·European Journal of Oral Sciences·Hongfei ChenCui Huang
Apr 23, 2015·Dental Materials : Official Publication of the Academy of Dental Materials·Thiago Henrique Scarabello StapeLuís Roberto Marcondes Martins
May 3, 2011·Journal of Biomechanics·Paulo Henrique Dos SantosAna Karina Bedran-Russo
Nov 18, 2018·Scientific Reports·Thiago Henrique Scarabello StapeArzu Tezvergil-Mutluay
Jan 10, 2019·Journal of Applied Oral Science : Revista FOB·Beatriz Maria FonsecaSérgio Eduardo de Paiva Gonçalves
Mar 2, 2021·Materials Science & Engineering. C, Materials for Biological Applications·Jian YuCui Huang
Jan 1, 2016·Dental Materials : Official Publication of the Academy of Dental Materials·Thiago Henrique Scarabello StapeLuís Roberto Marcondes Martins
Apr 18, 2018·Dental Materials : Official Publication of the Academy of Dental Materials·Thiago Henrique Scarabello StapeArzu Tezvergil-Mutluay
Sep 12, 2018·Dental Materials : Official Publication of the Academy of Dental Materials·Linyong SongPaulette Spencer
Aug 10, 2021·Journal of Dental Research·A ZhangA S L Fok

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