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Biomedical subjects

H Graf

Publications and source records attributed to H Graf.

At least 235 records · Page 13Linked to original sources
PubMed1975

[Orthodontic therapy by tooth extraction--indication and prognosis].

From 1000 current orthodontic treatments, a percentage of 23.3 (233 patients) was selected for extraction therapy. The indication and the prognosis were analysed from various viewpoints to deduce suggestions for the application in practice. The advantages described and the possibilities of use meet the demands on efficient orthodontic therapy.

Adult↗
PubMed1975

[An attempt at assessment of the numerical grading of success concerning diagnosis, therapy and prognosis in tooth alignment and malocclusion].

An attempt to assess the numerical grading of success with regard to the diagnosis, therapy and prognosis of anomalies of tooth alignment and occlusal position. Classifications according to Korkhaus, Angle and Eismann were evaluated using the original and final models of 42 patients who had been very co-operative. The importance and applicability in therapy and prognosis are assessed.

Malocclusion↗
PubMed1975

[Can changes be substantiated after termination of orthodontic treatment by means of yearly follow-up examinations? A longitudinal study over 5 years].

Is it possible to substantiate changes after terminated orthodontic treatment by annual follow-up examinations? A longitudinal study over five years. 42 patients with duly terminated orthodontic treatment were re-examined at intervals of one year during a period of five years. Relevant changes could be substantiated and discussed with regard to their importance in prognostic assessment.

Follow-Up Studies↗
PubMed1975

[Dental plaque pH in patients with hereditary fructose intolerance].

There is little doubt that the initial cariogenic attack upon dental enamel is caused by acids stemming from metabolic activity of dental plaque microorganisms fermenting carbohydrates. However, a direct correlation between caries activity and pH changes of plaque has not yet been established. In-vio and in-vitro plaque pH was recorded in 4 caries-free HFI children by the method of Graf, R., and Graf, H. Application of 10% glucose were followed regularly by pH drops from the fasting range pH 6.2-7.2) reaching values of 4.7 to 6.5 after 20 minutes. These were comparable to values found in normal subjects. 10% sucrose treatment resulted in a slower and less pronounced pH lowering, reaching a pH between 4.8 and 6.5 compared to normal control subjects, which showed the classical drop down to pH 4.0 to 4.3 The results indicate that human dental plaque grown under sucrose- free conditions cannot metabolize sucrose (or its initial breakdown produce fructose) to produce an in-vivo pH drop below the critical range of enamel demineralization. The zero caries activity of the children may be explained by the lack of a demonstrable classical pH drop or acid attack.

Adolescent↗