The morphology of the demineralized layer in primed dentin.
This study critically examined the surface and subsurface effects of selected dentin priming agents. Various dentin priming agents were used and specimens were prepared for SEM examination by conventional air drying or by a freeze fracture and critical point drying technique. The results showed that in specimens prepared by freeze fracture and critical point drying technique the demineralization of the dentin surface and subsurface by priming agents leaves a visible network of collagen fibrils. This technique allows better evaluation of the adaptation of bonding resins to the collagen network of the demineralized layer.
Titley
K
K
Department of Pediatric Dentistry, Faculty of Dentistry, University of Toronto, Ontario, Canada.
Chernecky
R
R
Maric
B
B
Valiquette
N
N
Smith
D
D
D000134:Acid Etching, Dental / Q000379:methods*; D000818:Animals; D002417:Cattle; D003094:Collagen; D003188:Composite Resins / Q000494:pharmacology; D003804:Dentin / Q000187:drug effects* / Q000648:ultrastructure; D003806:Dentin Permeability; D017220:Dentin-Bonding Agents / Q000737:chemistry / Q000494:pharmacology*; D005614:Freeze Fracturing; D006801:Humans; D008298:Maleates / Q000494:pharmacology; D008689:Methacrylates / Q000494:pharmacology; D008855:Microscopy, Electron, Scanning; D010756:Phosphoric Acids / Q000494:pharmacology; D019279:Resin Cements / Q000494:pharmacology; D013499:Surface Properties / Q000187:drug effects; D017155:Wettability
C074864:All-Bond system; D003188:Composite Resins; D017220:Dentin-Bonding Agents; D008298:Maleates; D008689:Methacrylates; D010756:Phosphoric Acids; D019279:Resin Cements; C067788:scotchbond 2; D003094:Collagen; C030272:maleic acid; C030242:phosphoric acid