[Theory and practice of prosthetic concern in bridges--problem analysis and problem solution as a basis for completion of a common closure].
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Biomedical subjects
Publications and source records attributed to G Knak.
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Using the Periodontal Disease Index and the Oral Hygiene Index, the authors determined the periodontal and oral hygiene conditions of 3853 individuals (18 to 100 years of age) selected at random from the Berlin population 67% of these individuals presented with periodontal disease; 10% were threatened by periodontal disease. The symptom "tooth loosening" was stated in 18%. The mean PDI was 2.93. The mean plaque incidence (index according to Quingley and Hein) amounted to 1.4 in subjects without periodontal disease, and to 2.2 in periodontally diseased individuals. The means supragingival calculus -- subgingival calculus ratio (index according to King) in these groups was 0.53 and 0.85, respectively.
Stomatological morbidity study - Berlin 1972. Part III. The frequency of dysgnathias and their symptoms in subjects of an epidemiologic-stomatological study. In the course of a stomatological morbidity study which was performed in Berlin in 1972, the authors investigated the dental conditions of 657 subjects, having an age range from 18 to 30 years. Only 15.2% of the persons under investigation had an eugnathic dentition. Almost 85% of the individuals showed dysgnathias. Apart from the frequency of certain tooth malalignments and malocclusions, associated symptoms were recorded. 15.5 of the subjects under investigation said that they had had orthodontic treatment. Significant differences were found in comparing the results obtained from treated individuals with those from untreated subjects.
Using the DMF index, the authors studied the caries morbidity in a representative sample of the Berlin population (3853 subjects, aged 18 to 100 years). The mean DMF index was 17.74, the value for female individuals being higher than that for male ones.
In the course of a representative morbidity study in the capital of Berlin of 1972, it was found that almost 56% of the adults needed prosthodontic care. Only nearly half of them had dental prostheses of sufficient quality, one fourth had insufficient dental prostheses, and one fourth were untreated.
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