The potential function of Lippincott and Schroeder for linear hydrogen bond has been re-examined and extended to nonlinear hydrogen bond. The parameters originally introduced to the potential function by Lippincott and Schroeder have been determined from the structural parameters such as 0.. .Odistance 0-H bond distance, H.. .O distance and HOO angle. Thevalidity of harmonic oscillator appr...

ÖZET Aim: The aim of the study is to examine the effect of dentinal erosion on shear bond strength of composite restorations. Materials and Methods: A half of 80 dentin pairs were subjected to erosion and toothbrush abrasion (eroded samples) whereas the other half was subjected to toothbrush abrasion (non-eroded samples) during six days. The restorations were bonded with (1) Optibond FL, (2) Ex...

This study investigated the effect of Er:YAG laser on bonding to dentin and the interaction pattern of different adhesive systems with the lased substrate. Tensile bond strength of a self-etching [Clearfil SE Bond (CSEB)] and two total-etch [Single Bond (SB) and Gluma One Bond (GOB)] systems to lased and non-lased dentin was evaluated and the adhesive interface morphology was examined by SEM. D...