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Biomedical subjects

M L Swartz

Publications and source records attributed to M L Swartz.

At least 73 records · Page 4Linked to original sources
PubMed1978

A method for assessing the clinical solubility and disintegration of luting cements.

A test was designed for evaluating the distintegration of cementing agents in the oral cavity. The cements were placed in small holes located in the proximal surfaces of cast gold restorations so that the materials were not subject to abrasion. Each cement was placed in one hole located occlusally and one located gingivally. Four commercial cements of four different types (zinc phosphate, zinc silicophosphate, polycarboxylate, and EBA-Alumina zinc oxide/eugenol) were tested in 15 patients, and differences were observed in the deterioration rates of the different cements over the 6 month period. The disintegration rate of a given cement was the same in the gingival and occlusal positions. No correlation was observed between the clinical data on loss of material and the solubility of the cements as measured by conventional in vitro tests.

Aluminum↗
PubMed1978

An in vitro study of certain properties of a glass ionomer cement.

A glass ionomer cement was tested for its release of fluoride, effect on solubility of enamel, bond to enamel, and ability to seal the cavity. It was comparable to silicate cement in its release of fluoride and its effect on solubility of enamel. The strength of the bond of the cement to tooth structure was similar to polycarboxylate cement, and it appeared to be quite effective in sealing cavities.

Acrylic Resins↗
PubMed1977

Testing of pit and fissure sealants in the monkey.

A pilot study was conducted employing the Macaca speciosa monkey to determine the retention and sealing ability of pit and fissure sealants in vivo. Several problems were encountered in the use of this animal model for this type of evaluation. Without doubt, the conditions to which the sealants were subjected in the monkey were more rigorous than those found in man. This is attested to by the lower rate of retention of sealants as compared to that found in studies on human beings. To increase the usefulness of animal studies of this type, additional research should be done to better establish the correlation between the behavior of sealants in the animal and in man. Nevertheless, certain pertinent observations were made, one of which is that in some instances where the sealant was retained on the teeth, the sealant-tooth interface was readily penetrated by an isotope solution.

Acrylic Resins↗