Purpose This study evaluated the effects of different adhesive systems on repair bond strength of aged resin composites. Materials and Methods Ninety composite discs were built and half of them were subjected to thermal aging. Aged and non-aged specimens were repaired with resin composite using three different adhesive systems; a two-step self-etch adhesive, a two-step total-etch adhesive and...

DNA polymerases cannot initiate the synthesis of new DNA chains, they can only elongate pre-existing primers. The opposite polarities of the two strands of the double helix coupled with the 5′r3′ polarity of the polymerase means that replication occurs relatively continuously on one (leading) strand and discontinuously on the other (lagging) strand. The continuous strand probably needs to be pr...

The peel resistance of four adhesives (“J-B Weld” by J-B Weld (adhesive A) , 3M Scotch-Weld DP 125 Gray (adhesive B), Loctite PL Premium (3x) Construction Adhesive (adhesive C), and Henkel Hysol EA9394 (adhesive D)) is investigated for their bonding performance of a styreneethylene/butylene-styrene– carbon black (SEBS-CB) composite membrane used in structural health monitoring (SHM) application...

OBJECTIVES The purpose of this study was to compare microleakage, gap formation, thickness of the adhesive layer and its radiographic appearance associated with four adhesive restorative procedures for class I cavities. METHODS Adhesive systems with easy handling characteristics were selected for the restoration of class I cavities in extracted third molars. Bitewing radiographs were taken of...

Infection of surgical wounds is a severe problem. Conventional tissue reattachment methods have limits of incomplete sealing and high susceptibility to infection. Medical adhesives have several advantages over traditional tissue reattachment techniques, but still have drawbacks, such as the probability of infection, low adhesive strength, and high cytotoxicity. Recently, a new medical adhesive ...