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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Effects of N-vinylpyrrolidone (NVP) containing polyelectrolytes on surface properties of conventional glass-ionomer cements (GIC). / Moshaverinia, A.; Roohpour, N.; Ansari, S. et al.
In: Dental Materials, Vol. 25, No. 10, 2009, p. 1240-1247.Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Effects of N-vinylpyrrolidone (NVP) containing polyelectrolytes on surface properties of conventional glass-ionomer cements (GIC)
AU - Moshaverinia, A.
AU - Roohpour, N.
AU - Ansari, S.
AU - Moshaverinia, M.
AU - Schricker, S.
AU - Darr, J.A.
AU - Rehman, I.U.
PY - 2009
Y1 - 2009
N2 - It has been found that polyacids containing an N-vinylpyrrolidinone (NVP) comonomer produces a glass inomer cement with improved mechanical and handling properties. The objective of this study was to investigate the effect of NVP modified polyelectrolytes on the surface properties and shear bond strength to dentin of glass ionomer cements. Poly(acrylic acid (AA)-co-itaconic acid (IA)-co-N-vinylpyrrolidone) was synthesized by free radical polymerization. The terpolymer was characterized using 1H NMR, FTIR spectroscopy and viscometry for solution properties. The synthesized polymers were used in glass ionomer cement formulations (Fuji II commercial GIC). Surface properties (wettability) of modified cements were studied by water contact angle measurements as a function of time. Work of adhesion values of different surfaces was also determined. The effect of NVP modified polyacid, on bond strength of glass-ionomer cement to dentin was also investigated. The mean data obtained from contact angle and bonding strength measurements were subjected to one- and two-way analysis of variance (ANOVA) at α = 0.05. Results showed that NVP modified glass ionomer cements showed significantly lower contact angles (θ = 47°) and higher work of adhesion (WA = 59.4 erg/cm2) in comparison to commercially available Fuji II GIC (θ = 60° and WA = 50.3 erg/cm2, respectively). The wettability of dentin surfaces conditioned with NVP containing terpolymer was higher (θ = 21°, WA = 74.2 erg/cm2) than dentin conditioned with Fuji conditioner (θ = 30°, WA = 69 erg/cm2). The experimental cement also showed higher but not statistically significant values for shear bond strength to dentin (7.8 MPa), when compared to control group (7.3 MPa). It was concluded that NVP containing polyelectrolytes are better dentin conditioners than the commercially available dentin conditioner (Fuji Cavity Conditioner, GC). NVP containing terpolymers can enhance the surface properties of GICs and also increase their bond strength to the dentin. © 2009 Academy of Dental Materials.
AB - It has been found that polyacids containing an N-vinylpyrrolidinone (NVP) comonomer produces a glass inomer cement with improved mechanical and handling properties. The objective of this study was to investigate the effect of NVP modified polyelectrolytes on the surface properties and shear bond strength to dentin of glass ionomer cements. Poly(acrylic acid (AA)-co-itaconic acid (IA)-co-N-vinylpyrrolidone) was synthesized by free radical polymerization. The terpolymer was characterized using 1H NMR, FTIR spectroscopy and viscometry for solution properties. The synthesized polymers were used in glass ionomer cement formulations (Fuji II commercial GIC). Surface properties (wettability) of modified cements were studied by water contact angle measurements as a function of time. Work of adhesion values of different surfaces was also determined. The effect of NVP modified polyacid, on bond strength of glass-ionomer cement to dentin was also investigated. The mean data obtained from contact angle and bonding strength measurements were subjected to one- and two-way analysis of variance (ANOVA) at α = 0.05. Results showed that NVP modified glass ionomer cements showed significantly lower contact angles (θ = 47°) and higher work of adhesion (WA = 59.4 erg/cm2) in comparison to commercially available Fuji II GIC (θ = 60° and WA = 50.3 erg/cm2, respectively). The wettability of dentin surfaces conditioned with NVP containing terpolymer was higher (θ = 21°, WA = 74.2 erg/cm2) than dentin conditioned with Fuji conditioner (θ = 30°, WA = 69 erg/cm2). The experimental cement also showed higher but not statistically significant values for shear bond strength to dentin (7.8 MPa), when compared to control group (7.3 MPa). It was concluded that NVP containing polyelectrolytes are better dentin conditioners than the commercially available dentin conditioner (Fuji Cavity Conditioner, GC). NVP containing terpolymers can enhance the surface properties of GICs and also increase their bond strength to the dentin. © 2009 Academy of Dental Materials.
KW - Bond strength
KW - Contact angle
KW - Glass-ionomer cement
KW - N-vinylpyrrolidone
KW - Surface properties
KW - Acrylic acids
KW - Bonding strength
KW - Cavity conditioners
KW - Co-monomer
KW - Control groups
KW - Dentin conditioners
KW - FTIR spectroscopy
KW - Function of time
KW - Handling properties
KW - Itaconic acid
KW - Poly acids
KW - Shear bond strengths
KW - Solution property
KW - Synthesized polymers
KW - Viscometry
KW - Water contact angle measurement
KW - Work of adhesion
KW - Adhesion
KW - Analysis of variance (ANOVA)
KW - Angle measurement
KW - Blood vessel prostheses
KW - Bond strength (materials)
KW - Carboxylic acids
KW - Cements
KW - Electric frequency control
KW - Fourier transform infrared spectroscopy
KW - Free radical polymerization
KW - Free radicals
KW - Glass
KW - Intercalation
KW - Mechanical properties
KW - Organic acids
KW - Polyelectrolytes
KW - Regression analysis
KW - Shear strength
KW - Soil conditioners
KW - Terpolymers
KW - Trace analysis
KW - 1 vinyl 2 pyrrolidinone
KW - 2 pyrrolidone derivative
KW - biomaterial
KW - electrolyte
KW - Fuji Cavity Conditioner
KW - Fuji glass ionomer lining cement
KW - Fuji glass-ionomer lining cement
KW - glass ionomer
KW - hydrogen peroxide
KW - itaconic acrylic acid copolymer
KW - itaconic-acrylic acid copolymer
KW - maleic acid derivative
KW - N-vinyl-2-pyrrolidinone
KW - phosphoric acid
KW - polymer
KW - adhesion
KW - article
KW - chemistry
KW - comparative study
KW - dental bonding
KW - dentin
KW - differential scanning calorimetry
KW - drug combination
KW - human
KW - infrared spectroscopy
KW - materials testing
KW - mechanical stress
KW - nuclear magnetic resonance spectroscopy
KW - scanning electron microscopy
KW - shear strength
KW - surface property
KW - ultrastructure
KW - viscosity
KW - wettability
KW - Adhesiveness
KW - Biocompatible Materials
KW - Calorimetry, Differential Scanning
KW - Dental Bonding
KW - Dentin
KW - Drug Combinations
KW - Electrolytes
KW - Glass Ionomer Cements
KW - Humans
KW - Hydrogen Peroxide
KW - Magnetic Resonance Spectroscopy
KW - Maleates
KW - Materials Testing
KW - Microscopy, Electron, Scanning
KW - Phosphoric Acids
KW - Polymers
KW - Pyrrolidinones
KW - Shear Strength
KW - Spectroscopy, Fourier Transform Infrared
KW - Stress, Mechanical
KW - Surface Properties
KW - Viscosity
KW - Wettability
U2 - 10.1016/j.dental.2009.05.006
DO - 10.1016/j.dental.2009.05.006
M3 - Journal article
VL - 25
SP - 1240
EP - 1247
JO - Dental Materials
JF - Dental Materials
SN - 0109-5641
IS - 10
ER -