Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/14880
ชื่อเรื่อง: Effects of oxalate on dentin bond after 3-month simulated pulpal pressure
ผู้แต่ง: Vachiramon V.
Vargas M.A.
Pashley D.H.
Tay F.R.
Geraldeli S.
Qian F.
Armstrong S.R.
Keywords: bisphenol A bis(2 hydroxypropyl) ether dimethacrylate
dentin bonding agent
oxalic acid derivative
resin
Single Bond Plus
unclassified drug
article
dental acid etching
dental bonding
dental care
dentin
drug effect
human
materials testing
methodology
molar tooth
physiology
proportional hazards model
survival
tensile strength
tooth disease
tooth permeability
tooth pulp
Acid Etching, Dental
Bisphenol A-Glycidyl Methacrylate
Composite Resins
Dental Bonding
Dental Leakage
Dental Pulp
Dental Stress Analysis
Dentin
Dentin Permeability
Dentin-Bonding Agents
Dentinal Fluid
Humans
Materials Testing
Molar
Oxalates
Proportional Hazards Models
Survival Analysis
Tensile Strength
วันที่เผยแพร่: 2008
บทคัดย่อ: Objectives: Application of an acidic oxalate solution forms calcium oxalate within dentinal tubules and has been used to desensitize dentin and may also improve performance by reducing internal dentin wetness during bonding. The hypothesis tested was that oxalate restriction of dentinal fluid transudation when using an etch-and-rinse two-step adhesive will improve microtensile bond strength (μTBS) and reduce nanoleakage. Methods: Occlusal dentin of 60 human molars were bonded (Adper Single Bond Plus, 3M ESPE) while one-half of each tooth received either a liquid (SuperSeal, Phoenix Dental) or gel (BisBlock, Bisco) oxalate treatment after acid etching. The restored teeth were placed under pulpal pressure for 3 months before forming cylindrical dumbbell specimens for μTBS and failure pathway determination. Additional teeth were prepared and stored in a similar manner for transmission electron microscopy (TEM) examination of nanoleakage after tracer immersion. Results: The mean bond strength in the group with oxalate liquid and the control group was 27.06 ± 7.14 and 36.18 ± 9.07 MPa, respectively, and for the gel form of oxalate was 25.34 ± 13.09 and 33.09 ± 14.25 MPa, respectively. The control groups were significantly stronger than either oxalate group using t-tests (liquid p < 0.00001; gel p = 0.0032) or Weibull (liquid p = 0.0002; gel p = 0.0029) statistics. Oxalate groups also demonstrated more adhesive failure modes and nanoleakage. Conclusions: Under the conditions of this study, the application of oxalate with an etch-and-rinse two-step bonding system produced significantly lower long-term μTBS and enhanced nanoleakage. © 2007 Elsevier Ltd. All rights reserved.
URI: https://ir.swu.ac.th/jspui/handle/123456789/14880
https://www.scopus.com/inward/record.uri?eid=2-s2.0-39249084868&doi=10.1016%2fj.jdent.2007.11.011&partnerID=40&md5=09f65b53b9c657fd20a81b02aaa5c9e3
ISSN: 3005712
Appears in Collections:Scopus 1983-2021

Files in This Item:
There are no files associated with this item.


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