WATER 2 WATER 2

THE WETTABILITY OF DIFFERENT ADHESIVE SYSTEMS IN SUPERFICIAL AND DEEP DENTINE HALACOGLU DM, TUNCER D, OGLAKCI B, ARHUN N Baskent University, School Of Dentistry, Department Of Restorative Dentistry Ankara-Turkey BACKGROUND Understanding the interface between dental materials and tooth is critical for the survival rate of the restorations. The aim of this study was to determine the wettability of different types of adhesive systems in superficial and deep dentine MATERIALS AND METHODS • 24 non-carious extracted human molar teeth were cut in half in bucco-lingual direction to produce deep and superficial dentine. Deep dentine was 1mm far from the pulp and produced on the buccal surface of the specimens, and superficial dentine was the outer dentin surface after removing enamel and produced on the lingual surface of the specimens. • Each half of the teeth were used separetely (N=48). Dentine specimens were ground wet with 600-grit silicon-carbide abrasive paper to obtain standard smear layer. • The specimens were divided into four groups (n=12) to receive the following surface treatments:

Clearfil SE Bond - CSE SingleBond 2 -SB All-Bond-Universal (Etch&Rinse) - AB(E&R) All-Bond-Universal (Self etch) – AB(SE) • 3 consecutive contact angle measurements were obtained during the application of the adhesive systems at three stages by Contact Angle System OCA (Figure 1)

RESULTS There was no significant difference between deep and superficial dentin for all measurements (p