PMID- 25619297 OWN - NLM STAT- MEDLINE DCOM- 20150722 LR - 20181202 IS - 1002-0098 (Print) IS - 1002-0098 (Linking) VI - 49 IP - 12 DP - 2014 Dec TI - [Effect of dentin proteoglycans on the bonding properties of dentin]. PG - 753-7 AB - OBJECTIVE: To investigate the potential effect of proteoglycan (PG) and glycosaminoglycan (GAG) on the bonding of etch and rinse adhesive to dentin, in order to improve the bonding effect of dentin. METHODS: Forty-two extracted molars were used to obtain standard dentin bonding surface, and the specimens were etched for 15 s with 37% phosphoric acid and divided into three groups using a table of random numbers. Then the three groups undergone different incubating procedures as follow: specimens in chondroitinase ABC (C-ABC) group were incubated with C-ABC at 37 degrees C for 48 h in vibrator. Specimens in trypsin (TRY) group were incubated with trypsin, and specimens in the control group were incubated with deionized water for 48 h in the oscillators. Then specimens in each group were randomly assigned into two subgroups, A (Adper(TM) Single Bond 2) and B (Prime & Bond NT) (n = 7). The microtensile bond strength (microTBS), fracture mode and bonding interface morphology of the specimens were evaluated via microtensile testing, stereo microscope and field emission scanning electron microscopy (FE-SEM) respectively after specimens being incubated in 37 degrees C water for 24 h. RESULTS: The immediate microTBS of C-ABC group bonding with adhesive A and B [(32.9+/-2.5) and (26.8+/-2.2) MPa] were significantly lower than that of the control group [(40.7+/-3.3) and (34.6+/-3.7) MPa] (P < 0.05). While the immediate microTBS of TRY group [(49.0 +/- 3.6) and (44.5 +/- 3.0) MPa] were significantly higher than that of the control group(P < 0.05). CONCLUSIONS: Dentin PG participates in the dentin bonding process. Removal of PG increased the immediate microTBS of dentin and total etching adhesives, while removal of GAG decreased the immediate microTBS. FAU - Gao, Yu AU - Gao Y AD - State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China. FAU - Zhao, Sanjun AU - Zhao S FAU - Wang, Peihuan AU - Wang P FAU - Lu, Shuai AU - Lu S FAU - Li, Xiaojing AU - Li X FAU - Chen, Jihua AU - Chen J AD - Email: jhchen@fmmu.edu.cn. LA - chi PT - Journal Article PL - China TA - Zhonghua Kou Qiang Yi Xue Za Zhi JT - Zhonghua kou qiang yi xue za zhi = Zhonghua kouqiang yixue zazhi = Chinese journal of stomatology JID - 8711066 RN - 0 (Dentin-Bonding Agents) RN - 0 (Glycosaminoglycans) RN - 0 (Phosphoric Acids) RN - 0 (Polymethacrylic Acids) RN - 0 (Prime & Bond) RN - 0 (Proteoglycans) RN - 0 (Resin Cements) RN - 0 (glucosaminoglycans) RN - 0 (single bond) RN - 454I75YXY0 (Bisphenol A-Glycidyl Methacrylate) RN - E4GA8884NN (phosphoric acid) RN - EC 3.4.21.4 (Trypsin) RN - EC 4.2.2.20 (Chondroitin ABC Lyase) SB - IM MH - Acid Etching, Dental/methods MH - Bisphenol A-Glycidyl Methacrylate/pharmacology MH - Chondroitin ABC Lyase/pharmacology MH - *Dental Bonding MH - Dental Stress Analysis MH - Dentin/*chemistry MH - Dentin-Bonding Agents/*pharmacology MH - Glycosaminoglycans/*pharmacology MH - Hot Temperature MH - Humans MH - Phosphoric Acids MH - Polymethacrylic Acids MH - Proteoglycans/*pharmacology MH - Random Allocation MH - Resin Cements MH - Tensile Strength/drug effects MH - Trypsin/pharmacology EDAT- 2015/01/27 06:00 MHDA- 2015/07/23 06:00 CRDT- 2015/01/27 06:00 PHST- 2015/01/27 06:00 [entrez] PHST- 2015/01/27 06:00 [pubmed] PHST- 2015/07/23 06:00 [medline] PST - ppublish SO - Zhonghua Kou Qiang Yi Xue Za Zhi. 2014 Dec;49(12):753-7.