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Biomedical subjects

W Künzel

Publications and source records attributed to W Künzel.

At least 145 records · Page 8Linked to original sources
PubMed1989

[How does the rate of participation in epidemiologic research affect oral health data?].

The question to which extent an unintended selection is linked with incorrect estimations of oral disease indicators by the readiness of subjects to participate is looked into within the framework of an epidemiological study. 896 primarily cooperative subjects and 70 originally noncooperative subjects aged from 25 to 64 years were examined. According to statistics, non-cooperative subjects were found to have more caries-infected teeth and less teeth filled. Generally, a smaller degree of dental care could be detected in these subjects, which should cause a critical discussion of the hitherto published parameters of oral diseases.

Adult↗
PubMed1989

[Root caries--a rat model].

A increasing alveolar bone loss and typical root surface caries were reproduced after defined co-inoculation of germfree Wistar rats with S. mutans and A. viscosus. The gnotobiotic rats were re-conventionalized and performed a gingivectomy on the right upper jaw at the beginning of the 12 week experiment.

Actinomyces↗
PubMed1989

[Is there a connection between coronal and root caries involvement?].

The relationship between coronal and root caries was analyzed in a sample of 963 people aged 25 to 64 years. Subjects with root caries had fewer teeth, more teeth with untreated coronal caries, and more teeth which need conservative treatments and extractions than did people with no root caries. In the age older than 55 years those with root caries had more teeth in the average of 2.5 teeth for both sexes. The other parameters of dental health showed the same differences compared with younger subjects.

Adult↗
PubMed1989

[Natural teeth as oral health indicator].

It is considered viable to plane an improvement in the oral health status of a population. To do this requires the involvement of clinical indicator in the establishment of a system of oral health care. These indicators must be objective, reproducable, sensitive and specific in there epidemiological application. There is an international consensus that for the joung, caries serves as a well definer indicator, while for adults the remaining functional teeth (or the edentulous state). Appropriate strategies achievable within a specified period of time for the maintenance of oral health must be established on a national, regional or territorial basis.

Dental Health Surveys↗
PubMed1989

[State control of vaccines].

Immunobiological preparations, especially vaccines are characterized by some specialties in manufacturing, guarantee of quality and in use. According to valid pharmaceutical legislation this group of preparations is allowed to get distributed and used with a state certificate for every lot only. The paper deals with tasks of the State Control Institute for immunobiological preparations connected with some fundamental informations on those preparations. Control procedures and methodological aspects have been taken into consideration. The statements take regard to pharmaceutical regulations to secure distribution and use of immunobiologicals.

Drug and Narcotic Control↗
PubMed1989

[Microbial colonization of carious progression stages in the dentin of human teeth--a controlled therapeutic study].

In a controlled clinical trial the microflora of the cavity floor of 70 primary lower second molars with deep carious lesions were determined after caries excavation. The teeth were extracted and pulpal status was evaluated after 16 months of microbial control to determine the etiopathogenic role of germs for carious progression in dentine. 67% of the primary molars were free from pulpal inflammations. Soft carious dentine were significantly higher infected than the clinically acceptable hard dentine. Only in 40% of the cavity floors the microorganisms were eliminated. In the infected teeth basophilic microorganisms were found in causality to pulps without inflammations; acidogenic streptococci and lactobacilli were involved in pulpal inflammations. Results indicate that the latter genera of microorganisms are of etiological significance for carious progression in dentine.

Actinomycetales↗