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Biomedical subjects

R B Sozio

Publications and source records attributed to R B Sozio.

15 recordsLinked to original sources
PubMed1988

Evaluation of the fit and strength of an all-ceramic fixed partial denture.

A laboratory investigation of the fit and strength of three-unit all-ceramic FPDs was performed with a metal-ceramic FPD control. The conclusions were: 1. No difference was found between the marginal seal of the metal-ceramic and all-ceramic FPDs. 2. The all-ceramic FPDs had a more uniform cement space and their occlusal seat was significantly (99.9%) better than the metal-ceramic restorations. 3. The metal-ceramic FPDs were significantly stronger than the all-ceramic FPDs. 4. Load calculations suggest that short-span all-ceramic FPDs may be strong enough to resist normal masticatory forces for selected patients. However, generalized usage will probably result in an unacceptable failure rate.

Aluminum Oxide↗
PubMed1985

Shrink-free ceramic.

An all-ceramic crown employing the Cerestore system utilizes a unique shrink-free alumina ceramic as its substrate. This core renders the restoration exceptional fit and strength. A ceramic layering technique employed with the aluminous porcelain veneers offers the capability of constructing a full crown restoration incorporating the optical properties present in a natural tooth.

Aluminum Oxide↗
PubMed1981

The effect of various finish line preparations on the marginal seal and occlusal seat of full crown preparations.

The influences of the marginal design of a full crown on the occlusal seat and marginal seal of a cemented full crown restoration was examined. Under the conditions of the study, the featheredge and parallel bevel preparations demonstrated the best marginal seal, followed in order by the full shoulder, 45-degree shoulder, and finally the 90-degree shoulders with 30-degree and 45-degree bevels. With regard to seating of the restoration, the 90-degree full shoulder demonstrated the best seat, followed in order by the 45-degree shoulder, 90-degree shoulder with 45-degree bevel, featheredge, 90-degree shoulder with 30-degree bevel, chamfer with parallel bevel, and finally 90-degree shoulder with parallel bevel.

Cementation↗
PubMed1975

A histologic and electronic evaluation of electrosurgical currents: nonfiltered full-wave modulated vs. filtered current.

A controlled system for examining the tissue alteration and healing of electrosurgically produced wounds was established. Standardization of width, depth, stroke, amperage, average voltage, and wave form was achieved. A histologic comparison of tissue alteration and healing produced by a conventional blade and two electrosurgical currents was carried out. The need for standarization of instrumentation and clinical procedures is discussed.

Animals↗