Infiltration/evaporation-induced shrinkage of demineralized dentin by solvated model adhesives

Thomas D. Becker, Kelli A. Agee, Anthony P. Joyce, Frederick Rueggeberg, James L. Borke, Jennifer L Waller, Franklin Chi Meng Tay, David Henry Pashley

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

During dentin bonding, solvated adhesive comonomers are applied to water-saturated decalcified dentin matrices. When alcohol-solvated hydrophilic or hydrophobic methacrylate monomers are applied, they chemically remove water and cause matrix shrinkage during comonomer infiltration. Evaporation of solvent induces further shrinkage. The purpose of this work was to compare the shrinkage of water-saturated dentin. matrices infiltrated with ethanol- or methanol-solvated 2-hydroxyethyl methacrylate (HEMA), 2,2-bis[4(2-hydroxy-3- methacryloyloxy-propyloxy)-phenyl] propane (BisGMA), or triethyleneglycol dimethacrylate (TEGDMA) at 90/10, 70/30, 50/50, and 30/70 mass fraction % alcohol/monomer before and after evaporation of alcohol. Thin (ca 0.2 mm) disks of human mid-coronal dentin were demineralized and placed in a well beneath the contact probe of a linear variable differential transformer (LVDT). The height of the matrix was measured before and after random application of one of the twelve alcohol/monomer mixtures. Matrix height was measured during infiltration and during solvent evaporation. Between trials, residual monomer was extracted using ethanol. These studies were repeated on specimens in which 100% alcohol was used to substitute for water in the matrix. Both studies revealed that matrices shrink 30-50% but that pretreatment of matrices with alcohol prevents BisGMA phase separations from occurring. Wet bonding with ethanol instead of water permits infiltration of relatively hydrophobic alcohol/monomers.

Original languageEnglish (US)
Pages (from-to)156-165
Number of pages10
JournalJournal of Biomedical Materials Research - Part B Applied Biomaterials
Volume80
Issue number1
DOIs
StatePublished - Jan 1 2007

Fingerprint

Dentin
Infiltration
Adhesives
Evaporation
Alcohols
Monomers
Water
Ethanol
Methacrylates
Propane
Phase separation
Methanol

Keywords

  • Alcohol
  • Collagen
  • Demineralized dentin
  • Hydrophilic
  • Model primers

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering

Cite this

Infiltration/evaporation-induced shrinkage of demineralized dentin by solvated model adhesives. / Becker, Thomas D.; Agee, Kelli A.; Joyce, Anthony P.; Rueggeberg, Frederick; Borke, James L.; Waller, Jennifer L; Tay, Franklin Chi Meng; Pashley, David Henry.

In: Journal of Biomedical Materials Research - Part B Applied Biomaterials, Vol. 80, No. 1, 01.01.2007, p. 156-165.

Research output: Contribution to journalArticle

@article{6c194aa9cb7a4055b6f7db98909552b5,
title = "Infiltration/evaporation-induced shrinkage of demineralized dentin by solvated model adhesives",
abstract = "During dentin bonding, solvated adhesive comonomers are applied to water-saturated decalcified dentin matrices. When alcohol-solvated hydrophilic or hydrophobic methacrylate monomers are applied, they chemically remove water and cause matrix shrinkage during comonomer infiltration. Evaporation of solvent induces further shrinkage. The purpose of this work was to compare the shrinkage of water-saturated dentin. matrices infiltrated with ethanol- or methanol-solvated 2-hydroxyethyl methacrylate (HEMA), 2,2-bis[4(2-hydroxy-3- methacryloyloxy-propyloxy)-phenyl] propane (BisGMA), or triethyleneglycol dimethacrylate (TEGDMA) at 90/10, 70/30, 50/50, and 30/70 mass fraction {\%} alcohol/monomer before and after evaporation of alcohol. Thin (ca 0.2 mm) disks of human mid-coronal dentin were demineralized and placed in a well beneath the contact probe of a linear variable differential transformer (LVDT). The height of the matrix was measured before and after random application of one of the twelve alcohol/monomer mixtures. Matrix height was measured during infiltration and during solvent evaporation. Between trials, residual monomer was extracted using ethanol. These studies were repeated on specimens in which 100{\%} alcohol was used to substitute for water in the matrix. Both studies revealed that matrices shrink 30-50{\%} but that pretreatment of matrices with alcohol prevents BisGMA phase separations from occurring. Wet bonding with ethanol instead of water permits infiltration of relatively hydrophobic alcohol/monomers.",
keywords = "Alcohol, Collagen, Demineralized dentin, Hydrophilic, Model primers",
author = "Becker, {Thomas D.} and Agee, {Kelli A.} and Joyce, {Anthony P.} and Frederick Rueggeberg and Borke, {James L.} and Waller, {Jennifer L} and Tay, {Franklin Chi Meng} and Pashley, {David Henry}",
year = "2007",
month = "1",
day = "1",
doi = "10.1002/jbm.b.30580",
language = "English (US)",
volume = "80",
pages = "156--165",
journal = "Journal of Biomedical Materials Research - Part A",
issn = "0021-9304",
publisher = "Heterocorporation",
number = "1",

}

TY - JOUR

T1 - Infiltration/evaporation-induced shrinkage of demineralized dentin by solvated model adhesives

AU - Becker, Thomas D.

AU - Agee, Kelli A.

AU - Joyce, Anthony P.

AU - Rueggeberg, Frederick

AU - Borke, James L.

AU - Waller, Jennifer L

AU - Tay, Franklin Chi Meng

AU - Pashley, David Henry

PY - 2007/1/1

Y1 - 2007/1/1

N2 - During dentin bonding, solvated adhesive comonomers are applied to water-saturated decalcified dentin matrices. When alcohol-solvated hydrophilic or hydrophobic methacrylate monomers are applied, they chemically remove water and cause matrix shrinkage during comonomer infiltration. Evaporation of solvent induces further shrinkage. The purpose of this work was to compare the shrinkage of water-saturated dentin. matrices infiltrated with ethanol- or methanol-solvated 2-hydroxyethyl methacrylate (HEMA), 2,2-bis[4(2-hydroxy-3- methacryloyloxy-propyloxy)-phenyl] propane (BisGMA), or triethyleneglycol dimethacrylate (TEGDMA) at 90/10, 70/30, 50/50, and 30/70 mass fraction % alcohol/monomer before and after evaporation of alcohol. Thin (ca 0.2 mm) disks of human mid-coronal dentin were demineralized and placed in a well beneath the contact probe of a linear variable differential transformer (LVDT). The height of the matrix was measured before and after random application of one of the twelve alcohol/monomer mixtures. Matrix height was measured during infiltration and during solvent evaporation. Between trials, residual monomer was extracted using ethanol. These studies were repeated on specimens in which 100% alcohol was used to substitute for water in the matrix. Both studies revealed that matrices shrink 30-50% but that pretreatment of matrices with alcohol prevents BisGMA phase separations from occurring. Wet bonding with ethanol instead of water permits infiltration of relatively hydrophobic alcohol/monomers.

AB - During dentin bonding, solvated adhesive comonomers are applied to water-saturated decalcified dentin matrices. When alcohol-solvated hydrophilic or hydrophobic methacrylate monomers are applied, they chemically remove water and cause matrix shrinkage during comonomer infiltration. Evaporation of solvent induces further shrinkage. The purpose of this work was to compare the shrinkage of water-saturated dentin. matrices infiltrated with ethanol- or methanol-solvated 2-hydroxyethyl methacrylate (HEMA), 2,2-bis[4(2-hydroxy-3- methacryloyloxy-propyloxy)-phenyl] propane (BisGMA), or triethyleneglycol dimethacrylate (TEGDMA) at 90/10, 70/30, 50/50, and 30/70 mass fraction % alcohol/monomer before and after evaporation of alcohol. Thin (ca 0.2 mm) disks of human mid-coronal dentin were demineralized and placed in a well beneath the contact probe of a linear variable differential transformer (LVDT). The height of the matrix was measured before and after random application of one of the twelve alcohol/monomer mixtures. Matrix height was measured during infiltration and during solvent evaporation. Between trials, residual monomer was extracted using ethanol. These studies were repeated on specimens in which 100% alcohol was used to substitute for water in the matrix. Both studies revealed that matrices shrink 30-50% but that pretreatment of matrices with alcohol prevents BisGMA phase separations from occurring. Wet bonding with ethanol instead of water permits infiltration of relatively hydrophobic alcohol/monomers.

KW - Alcohol

KW - Collagen

KW - Demineralized dentin

KW - Hydrophilic

KW - Model primers

UR - http://www.scopus.com/inward/record.url?scp=33845954765&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33845954765&partnerID=8YFLogxK

U2 - 10.1002/jbm.b.30580

DO - 10.1002/jbm.b.30580

M3 - Article

C2 - 16680696

AN - SCOPUS:33845954765

VL - 80

SP - 156

EP - 165

JO - Journal of Biomedical Materials Research - Part A

JF - Journal of Biomedical Materials Research - Part A

SN - 0021-9304

IS - 1

ER -