Academic Journals Database
Disseminating quality controlled scientific knowledge

Morphology and thickness of the diffusion of resin through demineralized or unconditioned dentinal matrix

ADD TO MY LIST
 
Author(s): Arrais César Augusto Galvão | Giannini Marcelo

Journal: Pesquisa Odontológica Brasileira
ISSN 1517-7491

Volume: 16;
Issue: 2;
Start page: 115;
Date: 2002;
Original page

Keywords: Dentin | Dentin-bonding agents

ABSTRACT
The formation of a hybrid layer is the main bonding mechanism of current dentin-bonding systems. This study evaluated the morphology and thickness of the resin-infiltrated dentinal layer after the application of adhesive systems. The dentin-bonding agents were evaluated on flat dentinal preparations confected on the occlusal surfaces of human teeth. The test specimens were prepared and inspected under scanning electron microscopy at a magnification of X 2,000. The adhesive systems were responsible for different hybrid layer thicknesses (p < 0.05), and the mean values were: for Scotchbond MP Plus (SM), 7.41 ± 1.24mum; for Single Bond (SB), 5.55 ± 0.82mum; for Etch & Prime 3.0 (EP), 3.86 ± 1.17mum; and for Clearfil SE Bond (CB), 1.22 ± 0.45mum. The results suggest that the conventional three-step adhesive system (SM) was responsible for the thickest hybrid layer, followed by the one-bottle adhesive (SB). The self-etching adhesives, EP and CB, produced the formation of the thinnest hybrid layers.
Affiliate Program      Why do you need a reservation system?