Biomedical subjects

A J Selman

Publications and source records attributed to A J Selman.

11 recordsLinked to original sources

PubMed1982

Growth pattern of the rabbit nasal bone region.

Two radiopaque implants were inserted into each left and right nasal bone in five female rabbits. Ventrodorsal cephalometric radiographs were taken at 6 and 16 weeks of age. From these radiographs, separate tracings were made on matte acetate paper of the left and right nasal bone regions including the radiopaque implants. The markers of the 16 week tracing were superposed on the markers of the 6 week tracing. The difference in the two established outlines represented the changes in size and shape in two dimensions that had occurred during the 10 week period. Our purpose was to determine the relative growth activity at several borders. The mean increase was about 6.79 mm at the proximal (posterior) border, 6.19 mm at the distal (anterior) border, 2.73 mm at the lateral border, 1.22 mm at the medial border. Thus, growth at the proximal and the distal borders was about the same and about twice that of the lateral border and about 5 times that of the medial border.

Animals↗

PubMed1978

Growth pattern of the rabbit nasal bone region. A combined serial gross and radiographic study with metallic implants.

Two radiopaque implants were inserted into each left and right nasal bone in 5 female rabbits. Ventrodorsal cephalometric radiographs were then taken in a specially designed head-holder at 6 and 16 weeks of age. From these radiographs separate tracings were made on matte acetate paper of the left and right nasal bone regions including the radiopaque implants. Since the implants maintained the same relationship to each other in each nasal bone, they served as stable reference sites. The markers of the 16-week tracing were superposed on the markers of the 6-week tracing. The difference in the two established outlines represented the changes in size and shape in two dimensions that had occurred during the 10-week period. Our purpose was to determine the relative growth activity at several borders. The mean increase was 6.79 mm at the proximal (posterior) border, 6.19 mm at the distal (anterior) border, 2.73 mm at the lateral border, 1.22 mm at the medial border. Thus, growth at the proximal and the distal borders was about the same and about twice that of the lateral border and about 5 times that of the medial border.

Age Factors↗

PubMed1977

Growth pattern of the rabbit snout dorsum: a serial cephalometric radiographic study with radiopaque implants.

Two radiopaque implants were inserted into each (left and right) frontal bone in five female rabbits. Ventrodorsal cephalometric radiographs were then taken in a specially designed head holder at 6 and 16 weeks of age. From these radiographs separate tracings were made on matte acetate paper of the left and right snout including the radiopaque implants. Since the implants maintained the same relationship to each other in each frontal bone, they served as stable reference sites. The markers of the 16 weeks tracing were superposed on the markers of the 6 weeks tracing. The difference in the two established outlines of the snout represented the changes in size and shape in two dimensions that had occurred during the 10 weeks period. The mean increase was 17.91 mm at the distal (anterior) border, 4.95 mm at the lateral border, and 1.22 mm at the medial border. Thus, growth at the lateral border of the snout was about 3 1/2 times that of the lateral border.

Animals↗

PubMed1976

Intraoral papillary cystadenoma lymphomatosum.

The literature related to intraoral papillary cystadenoma lymphomatosum is critically reviewed and the reported cases analyzed to determine the average age, sex, and race of patients, and the site distribution of this curious lesion. Two new cases are reported. The histogenesis and differential diagnosis from cystadenocarcinoma are briefly discussed.

Adenolymphoma↗

PubMed1973