Effect of 4-acryloxyethyltrimellitic acid in a self-etching primer on bonding to ground dentin

Dental Materials Journal
Kunio IkemuraT Endo

Abstract

To develop a self-etching primer for ground dentin, 4-acryloxyethyltrimellitic acid (4-AET) was newly synthesized, and the effect of concentrations varying from 0 (control) to 56.5 wt% 4-AET in the water/ HEMA primer on bonding to the dentin was investigated. Bond strength to the dentin was significantly affected by the inclusion of 4-AET in the primer which also contained N,N-di(hydroxyethyl)-p-toluidine (DEPT) when compared with the control (0% 4-AET) (p < 0.01). The optimum 4-AET-concentration and the mean bond strength (SD) were found to be 6.5 wt%: 24.2 (3.6 MPa, 37.4 wt%: 25.3 (4.4) MPa, 47.2 wt%: 26.9 (11.6) MPa and 54.4 wt%: 29.7 (12.9) MPa. The role of DEPT in the 4-AET/HEMA primer was assessed, and the optimum DEPT-concentration was found to be 0.154 and 0.307 mol%. Regarding the hypothetical bonding mechanism to dentin, it was thought that the ionized 4-AET in water/HEMA would penetrate into dentin substrates, and DEPT as an accelerator in situ would facilitate photo-polymerization at the dentin-resin interface, and result in increased bond strength to ground dentin.

Citations

Jan 25, 2003·Dental Materials : Official Publication of the Academy of Dental Materials·K IkemuraD H Pashley
Apr 11, 2003·Dental Materials : Official Publication of the Academy of Dental Materials·Yasuhiro ToriiKazuomi Suzuki
Feb 19, 1999·Dental Materials : Official Publication of the Academy of Dental Materials·T HayakawaK Nemoto
Jan 26, 2002·Journal of Dentistry·F R TayD H Pashley
Aug 19, 2006·Dental Materials Journal·Seiji BanMotoharu Miyamoto
Sep 12, 2002·Lasers in Surgery and Medicine·Renata P RamosRegina G Palma Dibb
Dec 11, 2007·Journal of Dentistry·Luca GiachettiFabio Bertini
Jun 5, 2007·Biomaterials·Kirsten L Van LanduytBart Van Meerbeek
Jun 7, 2005·Journal of Dentistry·Mitsuo Sato, Masashi Miyazaki
May 31, 2013·Dental Materials Journal·Daisaku ShiomukiShiro Suzuki
May 3, 2007·The Journal of the American Dental Association·Deniz KorasliS Burcak Cehreli
Apr 7, 2007·Dental Materials Journal·Kunio IkemuraTakeshi Endo
Feb 5, 2014·Dental Materials Journal·Nevin CobanogluFusun Ozer

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