OWN - Quintessenz Verlags-GmbH CI - Copyright Quintessenz Verlags-GmbH OCI - Copyright Quintessenz Verlags-GmbH TA - Int Poster J Dent Oral Med JT - International Poster Journal of Dentistry and Oral Medicine IS - 1612-7749 (Electronic) IP - 2 VI - 14 PST - ppublish DP - 2012 PG - 0-0 LA - en TI - Analysis of shear bond strength of two different types of ‎bonding agents on different types of tooth substrates in ‎different periods of time FAU - Mustafa, Ammar A. AU - Mustafa A FAU - Junaidi, M. Termidzi AU - Junaidi M FAU - Khalil, Maan Ibrahim AU - Khalil M FAU - Akhtaruzzaman, Mohd AU - Akhtaruzzaman M CN - OT - shear bond strength OT - bonding agents OT - SEM OT - AFM OT - 2D optical analyser AB - The current study was to investigate the early shear bonding strength of two types of ‎bonding agents on different tooth substrates and to compare the results by SEM, AFM ‎and microradiography. Bonding strength of two bonding agents; 3M ADPER Single ‎Bond and OptiBond Solo adhesive system Kerr were investigated at three periods on ‎enamel, prepared enamel and prepared dentin of 240 teeth by Universal testing machine. ‎Specimens were tested under SEM for the measurement of embedment of the bonding ‎material into the tubules of the substrate. The same specimens were reevaluated by AFM ‎and micro-radiography. Shear bond strength test found no significant differences among ‎the tissues or adhesive systems. The Single Bond system formed an authentic hybrid layer ‎that can ensure adequate adhesion. OptiBond Solo showed bonding of composite to ‎dentin and enamel reinforced by mechanical interlocks of the hybrid layer. SEM gave the ‎better reliable image to estimate intrusion of the polymer into dentinal tubules. AID - 857077