Morphological characterization of single bottle adhesives and vital dentin interface.
OBJECTIVE
To evaluate the in vivo interfacial relationship between four one-bottle adhesives and dentin.


METHODS
Four one-bottle adhesives (Scotchbond 1, Syntac SC, One-Step and Prime & Bond 2.1) were applied on flat dentin surfaces on human anterior teeth scheduled for extraction for dentures. A three-step adhesive system (Scotchbond Multi-Purpose) was used as a control. After adhesive application, a thin layer of composite was applied and light cured. The teeth were extracted immediately after resin curing. All samples were split fractured along their long axis. Half of the samples were deproteinized and decalcified at the interface in order to visualize the hybrid layer. The other halves were completely dissolved to observe the morphology of the resin tags.


RESULTS
All the one-bottle adhesives produced hybrid layers and resin tags at the dentin-resin interface. The three-step adhesive showed the same interfacial image but with a thicker hybrid layer and longer resin tags.
Abdalla
Ali I
AI
Department of Restorative Dentistry, Faculty of Dentistry, University of Tanta, Egypt. aliebraheem@hotmail.com
García-Godoy
Franklin
F
D000096:Acetone / Q000737:chemistry; D000134:Acid Etching, Dental; D000368:Aged; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D003804:Dentin / Q000648:ultrastructure*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D006801:Humans; D008689:Methacrylates / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged; D010756:Phosphoric Acids / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry; D013499:Surface Properties
C103506:Bis-GMA, BPDM, HEMA dental-bonding resin; D003188:Composite Resins; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D010756:Phosphoric Acids; D011109:Polymethacrylic Acids; D019279:Resin Cements; C084018:Scotchbond Multi-Purpose; C078484:Syntac dentine adhesive; C444444:prime and bond 2.1; D000096:Acetone; C041330:Scotchbond