Biomedical subjects

F Scharf

Publications and source records attributed to F Scharf.

At least 19 recordsLinked to original sources

PubMed1979

Carcinoma of the oral cavity: on the prognostic significance of the primary tumour site (by levels and areas).

The prognostic significance of primary tumour site in carcinomas of the oral cavity was investigated in a series of 585 cases. For the subsamples (levels and areas of oral cavity) studied, the numerical distribution of TNM categories, life tables and life table comparisons were computed. This produced the following results: Given an identical extension and analogous metastazising rate, there is no computationally demonstrable difference in prognosis between primary tumours sited at different levels and areas of the oral cavity. The exception are the T1Nx categories, for which a difference exists between precanine and retromolar sites. These results should be re-examined on the basis of a larger series.

Actuarial Analysis↗

PubMed1978

[Diagnosis, control of the course and timing of transplantation by means of the 99mTC-phosphonate bone scan in mandibular osteomyelitis].

Explore the source record for details and available documents.

Bone Transplantation↗

PubMed1976

TNM-classification of carcinomas of the oral cavity-efficacy of clinically available data (TN).

Using adequate number of cases, the influence of the spread of primary tumour and the degree of regional metastasis on prognosis were investigated. Assuming a practicable classification as a prerequisite for clinico-therapeutic cancer research, experience has shown that the assessment of the spread of primary tumour alone does not suffice for the establishment of comparable homogenous data. The investigation on the importance of the degree of regional metastasis has shown, above all, that the percentage of N3-metastasis within the T-groups contributes essentially to the fact that these show a marked difference in their prognosis. It would therefore appear necessary also to examine the importance of other clinically accessible data in the assessment of prognosis. Only then could we be in a position to judge whether, and to what extent a clinically practicable classification and integration into special groups is possible on the basis of clinically available data. The inclusion of more clinics in the joint investigation is encouraged.

Adolescent↗

PubMed1976

[Studies of the effectiveness of impersonal teaching by means of a sound film: "Conduction anesthesia on the mandible"].

The thesis that students could be instructed by audio-visual aids alone equally as well as by a personal instructor was tested by experiment. A teaching program, i.e. a sound film, was made and was shown to first-year clinical dental students. At the same time the usual lecture was offered to these students. Subsequently the knowledge acquired was examined. The results support the initial thesis, but at the same time it must be concluded that the highly differentiated psychomotor teaching objectives of dentistry cannot be achieved without individual instruction.

Education, Dental↗

PubMed1976

[Cancer of the oral cavity--limitations and possibilities of clinico-therapeutic cancer research].

Explore the source record for details and available documents.

Austria↗

PubMed1976

[TNM-classification of oral cavity neoplasms the value of clinically measurable factors (TN)].

Problems associated with the classification of cavum oris and labial carcinomata were discussed with particular reference to patients admitted to and treated in seven different clinical hospitals where identical methods of diagnosis and case history evaluation had been used. Using electronic data processing and biostatistical methods it was possible to study the effects of two clinically detectable factors (growth of primary tumor and degree of regional metastasizing) on both the prognosis and classification according to UICC rules. It was possible to show that a determination of the size of primary tumor (T) alone was not sufficient for three homogeneous, prognostically different collectives of tumors to be satisfactorily classified by the new UICC rules. It has been shown that a classification of three collectives of tumors (new classification according to UICC rules), especially as regards the proportion of N3 metastases within the collectives of tumors, was made possible. Therefore, it will be necessary to study the prognostic influences of additional clinically determinable factors with a view to arriving at a useful and practicable classification of oral cavity carcinomata.

Aged↗

PubMed1976