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An in vitro investigation into the shear bond strengths of two dentine‐bonding agents used in the reattachment of incisal edge fragments
Author(s) -
Badami A. A.,
Dunne S. M.,
Scheer B.
Publication year - 1995
Publication title -
dental traumatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 81
eISSN - 1600-9657
pISSN - 1600-4469
DOI - 10.1111/j.1600-9657.1995.tb00474.x
Subject(s) - incisor , materials science , fracture (geology) , dental bonding , dentin , dentistry , maxillary central incisor , orthodontics , composite material , bond strength , medicine , adhesive , layer (electronics)
This in vitro study investigated the shear bond strengths of sectioned bovine incisal edge fragments reattached using Gluma 2000 and Scotchbond 2. Teeth were sectioned 3 mm from the incisal edge using an Acutome with a 0.5 mm diamond wheel running at 90° to the mesial or distal surface of the tooth. Twenty four incisal fragments were rebonded with each of the dentine bonding agents; a further 24 intact incisors were used as a control group. The control group required a mean fracture force of 940(±144) N which was significantly greater (p < 0.01) than that required to fracture fragments rebonded using GLUMA 2000 (609±116) N and Scotchbond 2 (393±97) N. The mean force required to fracture incisal fragments rebonded with GLUMA 2000 was significantly greater (p < 0.01) than that required to fracture incisal fragments rebonded with Scotchbond 2.