TY - JOUR
T1 - Hydrostatic intrapulpal pressure and bond strength of bonding systems
AU - Prati, C.
AU - Pashley, D. H.
AU - Montanari, G.
N1 - Funding Information:
This investigation was supported, in part, by grant DE 06427 from the National Institute of Dental Research to David H. Pashley.
Funding Information:
This work was supported, in part, by grant DE06427 from the National Institute of Dental Research and by the Medical College of Georgia Dental Research Center. The authors are grateful to Shirley Johnston for her excellent secretarial assistance.
PY - 1991/1
Y1 - 1991/1
N2 - The purpose of this study was to evaluate the effect of intra-pulpal pressure on shear bond strength of three light-cured glass-ionomer cements (GC lining cement, Vitrabond, and Zionomer) and four dentin bonding agents [Gluma/ Scotchbond, Scotchbond 2, MBL, and Clearfill Photo Bond]. Buccal dentin surfaces were prepared just below the DEJ by means of a diamond bur. Dentin treatments were made for Zionomer (Zionomer conditioner), Scotchbond 2 (Scotchprep), MBL (10-3 solution), Clearfill PB (H3PO4), GC lining cement (Polyacrylic acid), and Gluma/Scotchbond (EDTA). Resin composites were inserted into tubes, positioned on dentin, cured, tested after five min or 24 h, and compared with samples bonded and stored under an intra-pulpal pressure of 36 cm of saline. After 24 h in superficial dentin, intrapulpal pressure reduced the bond strength only in MBL, Scotchbond 2, and Zionomer. Clearfill PB bond strength was increased, while Vitrabond, GC lining cement, and Gluma/Scotchbond were unaffected by the presence of pulpal pressure. However, in deep dentin, Scotchbond 2 and Clearfill PB shear bond strengths were significantly reduced by storage in the presence of 36-cm H2O pulpal pressure. Only Vitrabond remained unaffected by pulpal pressure in deep dentin.
AB - The purpose of this study was to evaluate the effect of intra-pulpal pressure on shear bond strength of three light-cured glass-ionomer cements (GC lining cement, Vitrabond, and Zionomer) and four dentin bonding agents [Gluma/ Scotchbond, Scotchbond 2, MBL, and Clearfill Photo Bond]. Buccal dentin surfaces were prepared just below the DEJ by means of a diamond bur. Dentin treatments were made for Zionomer (Zionomer conditioner), Scotchbond 2 (Scotchprep), MBL (10-3 solution), Clearfill PB (H3PO4), GC lining cement (Polyacrylic acid), and Gluma/Scotchbond (EDTA). Resin composites were inserted into tubes, positioned on dentin, cured, tested after five min or 24 h, and compared with samples bonded and stored under an intra-pulpal pressure of 36 cm of saline. After 24 h in superficial dentin, intrapulpal pressure reduced the bond strength only in MBL, Scotchbond 2, and Zionomer. Clearfill PB bond strength was increased, while Vitrabond, GC lining cement, and Gluma/Scotchbond were unaffected by the presence of pulpal pressure. However, in deep dentin, Scotchbond 2 and Clearfill PB shear bond strengths were significantly reduced by storage in the presence of 36-cm H2O pulpal pressure. Only Vitrabond remained unaffected by pulpal pressure in deep dentin.
UR - http://www.scopus.com/inward/record.url?scp=0025929759&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0025929759&partnerID=8YFLogxK
U2 - 10.1016/0109-5641(91)90028-W
DO - 10.1016/0109-5641(91)90028-W
M3 - Article
C2 - 1901813
AN - SCOPUS:0025929759
SN - 0109-5641
VL - 7
SP - 54
EP - 58
JO - Dental Materials
JF - Dental Materials
IS - 1
ER -