Push-out strength and SEM evaluation of resin composite bonded to internal cervical dentin.
The bond strength of a resin composite used with a dual-cured dentin bonding system to internal cervical bovine dentin was evaluated using a direct or indirect placement technique. Teeth were sectioned transversely to produce 4 mm-thick specimens. The root canals were enlarged to a standardized taper, treated with a dentin bonding system, and filled with a light-cured resin composite using either direct, incremental composite placement or indirect composite placement of a pre-polymerized composite inlay. The debond stress of indirectly placed restorations using a composite inlay was 8.5 (SD +/- 2.7) MPa which was significantly greater (p
Patierno, JM; Rueggeberg, FA; Anderson, RW; Weller, RN; Pashley, DH
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