View : 10 Download: 0

Effect of collagenase and esterase on resin-dentin interface: A comparative study between a total-etch adhesive and a self-etch adhesive

Title
Effect of collagenase and esterase on resin-dentin interface: A comparative study between a total-etch adhesive and a self-etch adhesive
Authors
Jung Y.-J.Hyun H.-K.Kim Y.-J.Jang K.-T.
Ewha Authors
정영정
Issue Date
2009
Journal Title
American Journal of Dentistry
ISSN
0894-8275JCR Link
Citation
vol. 22, no. 5, pp. 295 - 298
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Purpose: To examine the effects of collagenase and esterase activity on the microtensile bond strength and nanoleakage at the resin-dentin interfaces of two adhesive systems: a total-etch adhesive (Single Bond 2: SB) and a self-etch adhesive (Clearfil SE Bond: SE). Methods: Resin composites were bonded to the occlusal dentin surfaces of extracted human premolars with either SB or SE. The bonded teeth were sectioned into beams and assigned to one of four storage conditions: phosphate buffer solution (24 hours), phosphate buffer solution (4 weeks), collagenase solution (4 weeks), or esterase solution (4 weeks). Microtensile bond strength was evaluated and analyzed by two-way ANOVA. Failure mode was analyzed under SEM, and nanoleakage was examined with TEM. Results: The bond strength of SE was superior to that of SB after 4-week storage in three aqueous solutions. Collagenase and esterase solutions did not decrease the bond strength of SB any more than the phosphate buffer solution (P> 0.05). In regard to SE, the bond strength after 4-week storage in collagenase solution was lower than in the phosphate buffer solution (P< 0.05). TEM images revealed increasing tendency of nanoleakage in the bonded interfaces after storage in collagenase and esterase solutions.
Appears in Collections:
의학전문대학원 > 의학과 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE