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Biomedical subjects

F Gütschow

Publications and source records attributed to F Gütschow.

8 recordsLinked to original sources
PubMed1991

[Investigations on frequency of indication for adhesive bridge].

Investigating the dental condition of 1534 young men with an average age of 22 years, 714 tooth gaps were counted. Clinical treatment in 87% of these cases is recommended. In 60% of these cases the 1st molar, in 35% one of the premolars is missing. 40% of the mesial capable supporting pillars are found to be caries-free, the distal ones are only registered in 15% of the cases. 60% of the gaps observed recommended a conventional treatment, only 7% could be treated within real adhesive fixed bridge. A so called "combined bridge", i.e. a bridge fixed conventionally to the one and by adhesion techniques to the other side seemed to be realizable in 34% of the investigated cases.

Adolescent↗
PubMed1991

[Measurement of the clenching force during needle point registration in dentulous patients].

In this study the clenching force was measured, which 12 patients used, while the needle-point tracing was in progress. The patients were not instructed about the measurement. The results show, that 10 of 12 test persons used higher clenching forces, when they had to do border movements according to verbal instructions then when doing free movements of the mandibula. All test persons showed peaks in the level of the clenching force, which were clinically accompanied with swallowing.

Bite Force↗
PubMed1991

[Cross-sectional study on the prevalence of prosthodontic reconstructions in young men].

The prevalence of prosthetic reconstructions among 1534 German recruits (mean age 21.8 years) was evaluated. Of the total number of single crowns (n = 552), 72% were found in the upper jaw. Forty-one per cent of the crowns were situated in the upper incisor region. Four per cent of the probands received mostly three-unit-bridges and 0.9% removable partial dentures. In 3.7% of the cases all missing molars of a quadrant were not prosthetically replaced. The number of single crowns and bridges was not associated with the final school education, which in its term is closely associated with the social stratum. Between the level of school education and the need of prosthetic treatment a highly significant association was found.

Adolescent↗
PubMed1989

[Vibration studies on high-speed angular handpieces].

In the course of preparation the inner structure of the hard tooth substance may be damaged by frictioninduced vibrations. This aspect was examined in 30 KaVo high-speed angular handpieces of the new type 2304 LD/24 L by frequency analysis. The individual handpieces showed major differences in the amplitude of the 3rd and 4th harmonic. Above approx. 120,000 revs/min they lead to vibrations in the natural frequency range resulting in measurably smoother running. Solutions are discussed to eliminate these vibrations probably originating in the head of the handpiece.

Dental Enamel↗
PubMed1989

[Slowing of turbine under different pressures (torque)].

A comparative examination of in vivo measured revolutions proves that turbines with torque have a 100% wider usable revolution band than conventional ones. The resulting increased grinding capacity may seen at first sight as a positive effect, but is combined with a more than proportional increasing heat development. Literature, research and own considerations allow the statement, that revolutions used today and the possible pressures make a sufficient cooling of the grinded surface a problem. In order to reduce the recent distinct increase of preparation damages, a reduction of the possible exerted pressure as well as the current level of revolutions must be called for. In the same way as usual in the production industry the optimum rate of grinding capacity to heat development should be determined for each grinding instrument. In this respect not only the turbine is a step into a wrong direction.

Dental Cavity Preparation↗