Results 121 to 130 of about 2,606 (183)

The bonding of polycarboxylate cement to gold

Australian Dental Journal, 1977
Abstract— A comparison is made of several types of treatment of the surface of gold which will promote greater bonding with polycarboxylate cement.
O W, Rogers, J R, Griffith
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Influence of talc on the properties of polycarboxylate cement

Journal of Oral Rehabilitation, 1997
summary Zinc oxide, the inorganic component of polycarboxylate cement, was mixed with talc in various proportions from 10% to 50%. These powder mixtures were spatulated with poly(acrylic acid) in three powder to liquid (P/L) ratios of 1:1, 1‐5:1 and 2:1 (w/w).
R K, Bansal, U S, Tewari, P, Singh, D V, Murthy   +3 more
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Influence of cryolite on the properties of polycarboxylate cement

The Journal of Prosthetic Dentistry, 1995
Zinc oxide, the inorganic component of polycarboxylate cement, was mixed with the filler cryolite (Na3A1F6) in various proportions that ranged from 10% to 50%. These powder combinations were mixed with polyacrylic acid in three powder-to-liquid ratios of 1:1, 1.5:1, and 2:1 (w/w).
R K, Bansal, U S, Tewari, P, Singh, D V, Murthy   +3 more
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Punch shear strength of polycarboxylate cements

The Journal of Prosthetic Dentistry, 1978
Two general conclusions are drawn which apply to all the four commercial polycarboxylate cements: First, the effect of storage condition upon shear strength was much more pronounced after 24 hours than after 1 hour of storage time; second, the effect of storage condition was most extreme when the specimens were tested free of their matrices ...
J F, Santos, L, Steagall, J I, Silveira
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Pulp Reaction to a Polycarboxylate Cement in Monkeys

Journal of Dental Research, 1974
Pulp response to a polycarboxylate cement was evaluated microscopically in 48 teeth with intact dentin floors, and in 55 teeth with exposed pulps. The innocuous effect of polycarboxylate cements on the pulp was substantiated, although its use for pulp capping is not recommended.
A H, el-Kafrawy, D M, Dickey, D F, Mitchell, R W, Phillips   +3 more
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Studies on polycarboxylates and related cements 4. Properties of cements

Journal of Dentistry, 1979
Abstract The mechanical properties, setting times, apparent pH of setting cements, solubility, film thickness and adhesion to enamel and dentine have been determined for a range of zinc polycarboxylate cements. The properties are discussed in relation to the suitability of the cements as linings and luting agents.
B W, Bertenshaw, E C, Combe, A A, Grant
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Sealing quality of instruments cemented in root canals with polycarboxylate cements

Journal of Endodontics, 1975
Stainless steel files were cemented in place as the master cone with Durelon, PCA, and Proco-sol. The treated teeth were immersed in, dye; after 2, 4, 8, and 16 days, they were examined for evidence of dye penetration. The depth of dye penetration for each group was compared with the use of the t test.
G N, Barry, R A, Heyman, I L, Fried
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Effect of manipulative variables on the properties of a polycarboxylate cement*

Australian Dental Journal, 1975
Abstract— Strength and film thickness increased in polycarboxylate cement as the powder liquid ratio is increased and there is a tendency to reduction in adhesion which was more marked when cementation was delayed for three minutes with a 2:1 powder liquid ratio.
M C, Kafalias, M L, Swartz, R W, Phillips   +2 more
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The nature of the zinc polycarboxylate cement matrix

Journal of Biomedical Materials Research, 1982
AbstractThe matrix of a stoichiometric zinc polycarboxylate cement has been shown to be identical with zinc polycarboxylate salt, which consists principally of neutralized carboxylate groups with a few free acid groups. When excess zinc oxide is present, as in practical cements, there are no free acid groups present.
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Reinforced polycarboxylate cements.

Journal of dental research, 1975
Mechanical properties of polycarboxylate cements are greatly improved by incorporation of high modulus fibers such as potassium titanate into acrylic-itaconic acid and acrylic-itaconic-acronitic acid copolymers. Other desirable properties of the cements are not changed by the addition of fibers.
J A, Barton, G M, Brauer, J M, Antonucci, M J, Raney   +3 more
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