HEMA diffusion from dentin bonding agents through various dentin thicknesses in primary molars.
OBJECTIVE
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.
Cetingüç
Ayşegül
A
Department of Pediatric Dentistry, Faculty of Dentistry, Hacettepe University, Sihhiye, Ankara 06100, Turkey. aysegulcetinguc@yahoo.com
Olmez
Seval
S
Vural
Nilüfer
N
D000134:Acid Etching, Dental; D002648:Child; D003804:Dentin / Q000033:anatomy & histology / Q000737:chemistry*; D003806:Dentin Permeability; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D004058:Diffusion; D005260:Female; D006801:Humans; D016014:Linear Models; D008297:Male; D008689:Methacrylates / Q000737:chemistry*; D018709:Statistics, Nonparametric
D017220:Dentin-Bonding Agents; D008689:Methacrylates; C005044:hydroxyethyl methacrylate