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Biomedical subjects

G Knak

Publications and source records attributed to G Knak.

At least 55 records · Page 3Linked to original sources

[Somatologic morbidity study-- Berlin 1972. 2. Incidence of periodontal diseases, condition of oral hygiene].

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.

Adolescent↗

[Stomatological morbidity study--Berlin 1972. 3. The frequency of dysgnathias and their symptoms in the subjects of an epidemiologic-stomatological study].

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.

Adolescent↗