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Catechol-Functionalized Synthetic Polymer as a Dental Adhesive to Contaminated Dentin Surface for a Composite Restoration

 Sang-Bae Lee  ;  Carlos González-Cabezas  ;  Kwang-Mahn Kim  ;  Kyoung-Nam Kim  ;  Kenichi Kuroda 
 BIOMACROMOLECULES, Vol.16(8) : 2265-2275, 2015 
Journal Title
Issue Date
Catechols/chemical synthesis ; Catechols/chemistry* ; Composite Resins/chemical synthesis ; Composite Resins/chemistry ; Dental Bonding ; Dental Cements/chemical synthesis ; Dental Cements/chemistry* ; Dentin/chemistry ; Humans ; Materials Testing ; Methacrylates/chemistry* ; Polymers/chemical synthesis ; Polymers/chemistry* ; Surface Properties ; Tensile Strength
This study reports a synthetic polymer functionalized with catechol groups as dental adhesives. We hypothesize that a catechol-functionalized polymer functions as a dental adhesive for wet dentin surfaces, potentially eliminating the complications associated with saliva contamination. We prepared a random copolymer containing catechol and methoxyethyl groups in the side chains. The mechanical and adhesive properties of the polymer to dentin surface in the presence of water and salivary components were determined. It was found that the new polymer combined with an Fe(3+) additive improved bond strength of a commercial dental adhesive to artificial saliva contaminated dentin surface as compared to a control sample without the polymer. Histological analysis of the bonding structures showed no leakage pattern, probably due to the formation of Fe-catechol complexes, which reinforce the bonding structures. Cytotoxicity test showed that the polymers did not inhibit human gingival fibroblast cells proliferation. Results from this study suggest a potential to reduce failure of dental restorations due to saliva contamination using catechol-functionalized polymers as dental adhesives.
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Dental Biomaterials and Bioengineering (치과생체재료공학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyoung Nam(김경남)
Kim, Kwang Mahn(김광만) ORCID logo https://orcid.org/0000-0002-5235-0294
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