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Biomedical subjects

J Setz

Publications and source records attributed to J Setz.

At least 37 records · Page 2Linked to original sources
PubMed1989

[Plaque-accumulation on galvano-ceramic crowns].

48 patients treated with galvano-ceramic crowns and bridges were evaluated as to their plaque indices according to Silness and Löe (PI) and their papillary bleeding indices (PBI) according to Mühlemann. The mean values of PI and PBI were determined for all teeth as well as for defined groups of teeth: sound teeth, teeth with galvano-ceramic crowns and other restorative materials. Galvano-ceramic crowns showed the least plaque accumulation. Their PI was lower than the PI of sound teeth. Resin-veneered crowns and full cast crowns exhibited significantly higher PI-values in the posterior area. Crowned teeth had a higher PBI than sound teeth, but galvano-ceramic crowns showed lower PBI-values than crowns of other restorative materials.

Crowns↗
PubMed1989

[Profilometric studies on the surface reproduction of dental impression materials].

The reproduction of elastic impression materials is described with a laser-technique. This technique allows a quantitative evaluation without touching and deforming the surfaces. Although it is possible to measure differences, clinically relevant differences between several elastomere and one hydrocolloid material are not found.

Dental Impression Materials↗
PubMed1989

[Tensile strength of short-fiber-reinforced temporary plastics].

Glass fibers added to temporary crown and bridge material (Proviso-Blend, Blendax) by 5% to the weight increased the tensile strength of the acrylic resin by 38%. The increase was even greater when carbon fibers were added (50%), but the resin discoloured to a greyish shade. The results were less spectacular with Dentalon Plus (Kulzer), and the experiment did not work with Protemp (Espe). The amount of improvement in tensile strength depended on the type and geometry of the fiber and of the fiber concentration. Neither the properties of the polished surface of a fiber-reinforced acrylic nor adverse effects of such fibers possibly swallowed by the patient are investigated as yet.

Composite Resins↗