Publication:
Effects of oxalate on dentin bond after 3-month simulated pulpal pressure

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Issued Date

2008

Resource Type

Article

File Type

application/pdf

ISSN

3005712

DOI

10.1016/j.jdent.2007.11.011

Other identifier(s)

2-s2.0-39249084868

Rights Holder(s)

Scopus

Bibliographic Citation

Journal of Dentistry. Vol 36, No.3 (2008), p.178-185

Suggested Citation

Vachiramon V., Vargas M.A., Pashley D.H., Tay F.R., Geraldeli S., Qian F., Armstrong S.R. Effects of oxalate on dentin bond after 3-month simulated pulpal pressure. Journal of Dentistry. Vol 36, No.3 (2008), p.178-185. doi:10.1016/j.jdent.2007.11.011 Retrieved from: https://hdl.handle.net/20.500.14740/4119

Title

Effects of oxalate on dentin bond after 3-month simulated pulpal pressure

Author(s)

Vachiramon V.
 Vargas M.A.
 Pashley D.H.
 Tay F.R.
 Geraldeli S.
 Qian F.
 Armstrong S.R.

Abstract

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.

Subject(s)

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

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URI

https://hdl.handle.net/20.500.14740/4119

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Scopus: Year 1983-2021

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