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Biomedical subjects

L H Klausner

Publications and source records attributed to L H Klausner.

11 recordsLinked to original sources
PubMed1989

Glass-ionomer cements in dental practice: a national survey.

Certain characteristics of glass-ionomer cements would appear to make them desirable dental materials; however, many practitioners are reluctant to use them because of reports of postoperative sensitivity. The members of the Academy of Operative Dentistry were surveyed in order to assess quantitatively and qualitatively the use of glass-ionomer cements in their practices, as well as the incidence and nature of postoperative sensitivity. The following data were collected: 1) the past and present use of glass-ionomer cements, 2) reasons for disuse of glass-ionomer cements, 3) products which are or have been used, and 4) the incidence of and resolution of postoperative sensitivity. The results are presented and discussed. An interesting secondary finding identified that zinc phosphate when used as a luting agent may contribute to postoperative sensitivity more often than is appreciated.

Dental Cements↗
PubMed1984

Clinic simulation and preclinical performance.

The physical environment in which dental students learn preclinical skills has been a focus of attention recently; the effect of this variable on practical examination performance by first-year students in a preclinical dentistry course was examined. In a controlled, two-part experiment, students doing preclinical work in the clinic did not perform significantly better on practical examinations than students working in a typical laboratory environment. Other factors such as enthusiasm, motivation, satisfaction, operator comfort, long-term productivity, and exposure to the clinical environment prior to patient treatment are important dimensions of the preclinical experience; the effect of the environment on these factors should be examined.

Clinical Clerkship↗
PubMed1982

Polished versus autoglazed porcelain surfaces.

Four different porcelain polishing sequences were evaluated, and the resulting polished surfaces were compared to an unaltered glazed surface. The sequences included: (1) superfine diamond, Dedeco wheels, and levigated alumina; (2) Shofu porcelain polishing system; (3) superfine diamond, Cratex wheel, Burlew disk, and levigated alumina; and (4) Jelenko porcelain carving and polishing wheels. No statistically significant differences were found for the surface roughness values among the initial glazed samples. Furthermore, no significant differences were found between the final polished surfaces and the initial autoglazed surfaces for any of the four test sequences. Significant differences were found between comparable abrasives among the polishing sequences, as well as between steps within a single polishing sequence. The clinical significance of these differences in regard to gingival health or occlusal abrasion and wear is yet to be determined.

Dental Porcelain↗