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Biomedical subjects

T D Foster

Publications and source records attributed to T D Foster.

At least 37 records · Page 2Linked to original sources
PubMed1982

Effects of a school visit dental health programme upon the attitudes of undergraduate dental students in England.

A programme of structured school visits during the dental undergraduate course was used to assess attitudes and changes of attitudes of dental students to aspects of dental health education. Participating students showed the greater changes of attitude towards community dental health education and developed better understanding of correct dietary and oral hygiene advice. However, in spite of these attitude changes the participating students were not convinced that this type of dental health education was very effective in the prevention of dental disease.

Attitude of Health Personnel↗
PubMed1981

Variation in cephalometric reference lines.

The use of intracephalic reference lines in cephalometric assessment is valid only if these lines bear some constant relationship to the true horizontal and to each other. Otherwise, the use of a true horizontal would give the benefit that cephalometric assessment would be based on the same standards as clinical judgment. In using a true horizontal, however, the radiograph must be taken with the head in a reproducible natural posture. A study was carried out to assess the reproducibility of a natural head posture using a simple positioning method in a standard cephalostat, and to assess the variation in the relationship of the sella-nasion, Frankfort, maxillary and mandibular reference lines, to a true horizontal and to each other. Though in their mean inclinations the Frankfort and the maxillary reference lines were almost parallel to each other and to the true horizontal, the range of variation for all the reference lines was considerable. The range of variation in the reference lines was greater than the error of reproduction of head position, and the range of variation of the slope of the mandibular line was no greater than that for the slope of each of the other three lines. The sella-nasion line was reproduced more accurately that the other reference lines, using a digitizer. The possibilities of a simple cephalometric analysis based on a true horizontal are outlined.

Adolescent↗
PubMed1979

The public health interest in assessment for orthodontic treatment.

In dental public health care programs the occlusion of the teeth is of interest from several different viewpoints: clinical treatment, screening for treatment need and priority, resource planning, and funding. Aspects of occlusion which are of interest are occlusal features, the need for treatment, the difficulty of treatment and the social factors affecting the practicability of treatment. Most of the interested parties are particularly concerned with the need for treatment--an area where objective assessment is not possible. Several methods of assessment of treatment need have been devised. Many of these are reasonably objective methods of assessing occlusal features, but involve the subjective concept that occlusal variation needs correction. In the absence of an objective measurement of treatment need, screening programs could be carried out by personnel who have training in the use of indices but not in clinical orthodontics. Resource planning, however, needs a knowledge of clinical orthodontics to determine types and relative difficulties of treatment required. For public health purposes there is a need for an assessment which would include the etiological factors of malocclusion which govern the difficulty of treatment, and the social factors governing the practicability of treatment.

Health Planning↗
PubMed1977

A longitudinal study of dental arch growth.

Changes in dental arch size and form were assessed by means of univariate and multivariate analysis in a longitudinal study of children between 2 and 10 years of age. The multivariate analysis served to assess the arches as a biologic whole rather than as a series of independent dimensions. Dental arches do not seem to undergo a steady rate of change up to the age of 10 years. In the arches anterior to the first permanent molars, peaks of growth occur between 2 and 3 years and 7 and 8 years in the maxilla, and between 2 and 3 years and 5 and 6 years in the mandible. In the arches, including the first permanent molars, peaks of growth occur between 6 and 8 years in the maxilla and between 9 and 10 years in the mandible.

Age Factors↗
PubMed1977

Growth defects in unrepaired unilateral cleft lip and palate.

The positional relationships of the dentoalveolar segments in ten subjects with unrepaired unilateral complete clefts of lip and palate were studied in order to assess the effects of the cleft malformation on dentoalveolar growth. The findings suggest that there are localized growth defects, particularly in lateral and vertical growth at the region of the alveolar cleft, which cannot be accounted for by operative trauma. The position and shape of the central incisor nearest the cleft was also found to be defective in some subjects.

Adolescent↗