Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/14940
ชื่อเรื่อง: Resin-dentin bond strength as related to different surface preparation methods
ผู้แต่ง: Sattabanasuk V.
Vachiramon V.
Qian F.
Armstrong S.R.
Keywords: carbon
Clearfil SE Bond
dentin bonding agent
diamond
inorganic compound
OptiBond FL
resin
resin cement
silicon carbide
silicon derivative
unclassified drug
article
chemistry
dental bonding
dental surgery
dentin
human
instrumentation
materials testing
mechanical stress
methodology
particle size
scanning electron microscopy
tensile strength
ultrastructure
Carbon
Carbon Compounds, Inorganic
Composite Resins
Dental Bonding
Dentin
Dentin-Bonding Agents
Diamond
Humans
Materials Testing
Microscopy, Electron, Scanning
Particle Size
Resin Cements
Silicon Compounds
Smear Layer
Stress, Mechanical
Tensile Strength
Tooth Preparation
วันที่เผยแพร่: 2007
บทคัดย่อ: Objective: To determine the microtensile bond strength and micromorphological structures on bonding of two adhesives (OptiBond FL and Clearfil SE Bond) to dentin surfaces ground with different preparation methods. Methods: Extracted human molars were ground flat to expose mid-coronal occlusal dentin surface with one of six preparation methods-P120 grit SiC paper, P400 grit SiC paper, P1200 grit SiC paper, medium grit diamond bur, fine grit diamond bur, and carbide bur. Each of the adhesives was used to bond resin-based composite to the dentin surface. Dumbbell-shaped specimens were fabricated and microtensile bond strengths were determined. The subsequent debond pathway and micromorphological structures of representative dentin surfaces were examined under scanning electron microscopy. ANOVA and survival analyses were performed both assuming independence from and accommodating for within-tooth correlation between specimens. Results: By ignoring the correlations between specimens, statistical analyses revealed no surface preparation effect on microtensile bond strength for each adhesive system. However, effects of surface preparation method on dentin adhesion of both adhesives were detected when accommodating for any within-tooth specimen correlations. Overall, carbide bur group showed the lowest bond strength for both OptiBond FL and Clearfil SE Bond. Dentin surfaces ground with diamond burs tended to present more compact smear layer than those ground with SiC papers and, subsequently, produced an effect on resin-dentin bond strengths. Conclusions: The dentin surface preparation method affects smear layer characteristics and dentin surface topography and, therefore affects resin-dentin bond strength. Smear layer denseness, more so than thickness, may compromise bonding efficacy of adhesives, especially of the self-etch systems. © 2007 Elsevier Ltd. All rights reserved.
URI: https://ir.swu.ac.th/jspui/handle/123456789/14940
https://www.scopus.com/inward/record.uri?eid=2-s2.0-34247578611&doi=10.1016%2fj.jdent.2007.01.002&partnerID=40&md5=0f3e69ed9743052d9537cae85d8d4c44
ISSN: 3005712
Appears in Collections:Scopus 1983-2021

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