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HEMA diffusion from dentin bonding agents through various dentin thicknesses in primary molars
Ayşegül Cetingüç1, Seval Olmez, Nilüfer Vural
1Department of Pediatric Dentistry, Faculty of Dentistry, Hacettepe University, Sihhiye, Ankara 06100, Turkey. aysegulcetinguc@yahoo.com
Purpose:
To evaluate in vitro HEMA diffusion amounts from three dentin-bonding systems in primary molars with various remaining dentin thicknesses.
Methods:
Occlusal cavities were prepared with remaining dentin thickness of 0.5, 1 and 2 mm respectively. Chambers that contain 1 ml of distilled water were attached to each tooth. The groups were treated with Total Etch + Syntac Single Component, Syntac Single Component and Clearfil SE Bond. Water eluates were removed after 72 hours for analyses by HPLC.
Results:
The cumulative HEMA release amounts were significantly different between all groups (P< 0.05). Decreasing dentin thickness and acid-etching significantly increased pulpward diffusion of HEMA.
