Improvement in the adhesion of polyacrylate cements to human dentine

Beech, D. R.

doi:10.1038/sj.bdj.4803103

Cited by 50 publications

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“…7 Smith (1968) was the first to suggest that the polyacrylate chains of the cement formed a chelate with Ca ions contained in the HAp-like mineral in enamel and dentine. 2 However, Beech (1973) considered this unlikely, since it involved the formation of an 8-membered ring, which is sterically unfavorable. 8 Beech studied the interaction between Poly(acrylic acid) (PAA) and HAp and suggested that adsorption was due to ionic attraction.…”

Section: Introductionmentioning

confidence: 99%

“…2 However, Beech (1973) considered this unlikely, since it involved the formation of an 8-membered ring, which is sterically unfavorable. 8 Beech studied the interaction between Poly(acrylic acid) (PAA) and HAp and suggested that adsorption was due to ionic attraction. 8 The geometry of the carboxylate anions is particularly suited for the formation of metal carboxylates in which the ligand is coordinated to the metal in bridging modes.…”

Section: Introductionmentioning

confidence: 99%

“…8 Beech studied the interaction between Poly(acrylic acid) (PAA) and HAp and suggested that adsorption was due to ionic attraction. 8 The geometry of the carboxylate anions is particularly suited for the formation of metal carboxylates in which the ligand is coordinated to the metal in bridging modes. 9 Moreover, Beech (1972) provided strong evidence for the formation of ionic bonds between the Ca ions in enamel and polyacrylic acid in polycarboxylate cement.…”

Section: Introductionmentioning

confidence: 99%

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An evaluation of mechanical property and microstructural development in HAP-Ca polycarboxylate biocomposites prepared by hot pressing

Greish¹,

Brown²

2000

J. Biomed. Mater. Res.

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A hot-pressing technique was used to prepare composites anticipated to be biocompatible. Ca(4)(PO(4))(2)O (TetCP) was reacted with an acrylic-itaconic copolymer (CoP) in the absence of a solvent to form composites comprised of Ca(10)(PO(4))(6)(OH)(2') (hydroxyapatite, or HAp) and the Ca polyalkenoate salt. The effect of temperature, pressure, and hot-pressing time on the mechanical properties and microstructure of the composites were studied. Results showed that both tensile strength and elastic modulus increased when temperature and time were increased. When the compaction pressure was increased, these properties initially increased but decreased at high pressures. These variations in the mechanical properties were correlated with the microstructure of these composites. The mechanism of the reaction was also studied. Reaction starts when the copolymer is heated to above its T(g) permitting it to flow and react with the TetCP grains. The COOH groups on the polymer are neutralized by Ca(2+) ions liberated from the TetCP. At the end of reaction, a network of the Ca polyalkenoate salt is formed in which HAp crystals are embedded.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An evaluation of mechanical property and microstructural development in HAP-Ca polycarboxylate biocomposites prepared by hot pressing

Greish¹,

Brown²

2000

J. Biomed. Mater. Res.

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“…Since the introduction of hypermineralization as a method of modifying the dentin surface to improve the adhesion of polycarboxyl ate cement [52] the approach has been found to benefit the bonding of composites alone [53], or in conjunction with surface active co-monomers [54] or cyanoacrylates [55]. Bond strengths for the materials examined (Table 28) were determined by a method first reported by Beech (52).…”

Section: Mineralization Of Dentin As An Adhesive -Developing Techniquementioning

confidence: 99%

“…Bond strengths for the materials examined (Table 28) were determined by a method first reported by Beech (52). Briefly, a circular area (3 mm in diameter) of flat dentin or enamel surfaces of human teeth mounted in self-curing resin was masked off.…”

Section: Mineralization Of Dentin As An Adhesive -Developing Techniquementioning

confidence: 99%

Properties and interactions of oral structures and restorative materials

Cassel¹

1981

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Dental Materials

Tesk

Antonucci

Eichmiller

et al. 2000

Kirk-Othmer Encyclopedia of Chemical Technology

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Dental materials are those materials used to provide therapy for the hard and soft oral tissues. This therapy includes the replacement of oral tissues lost through disease with inert materials, ie, metallic, ceramic, and organic, or with composites employing combinations of these three broad classes. The operative restorations and prostheses are made of amalgam, precious and nonprecious alloys, special cements, synthetic polymers, porcelain, and glass‐ceramics, all of which must withstand the rigors of the oral environment (see also Prosthetic and Biomedical Devices). The accessory materials needed in the fabrication procedures include synthetic polymers, synthetic and natural gums and waxes, hydrocolloids, gypsums, and refractories. These materials are used by ca 170,000 practicing dentists in the United States (1992) and more than 8,500 commercial U.S. dental laboratories employing ca 40,000–50,000 technicians.

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Improvement in the adhesion of polyacrylate cements to human dentine

Cited by 50 publications

References 0 publications

An evaluation of mechanical property and microstructural development in HAP-Ca polycarboxylate biocomposites prepared by hot pressing

An evaluation of mechanical property and microstructural development in HAP-Ca polycarboxylate biocomposites prepared by hot pressing

Properties and interactions of oral structures and restorative materials

Dental Materials

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