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Biomedical subjects

A Ashman

Publications and source records attributed to A Ashman.

36 records · Page 2Linked to original sources
PubMed1983

Personality profiles of pilots.

Samples of Air Force fighter pilots, trainee commercial pilots, and males drawn from the general community completed the Edwards Personality Preference Schedule (EPPS). Four significant effects were found for individual sub-scales; three (Achievement, Affiliation, and Nurturance) identifying air force fighter pilots. Commercial pilot trainees scored significantly less than the community sample on Succorance and Nurturance. The data suggest that the EPPS consists of several related personality dimensions. One of these, "sociability," discriminated fighter pilots from the general community.

Adult↗
PubMed1982

Cognitive processes and perceived language performance of retarded persons.

The relationship between coding processes and ratings of the language performance of institutionalized, moderately retarded adolescents and adults was studied using an information processing model developed by Das, Kirby & Jarman (1975). Simultaneous and successive coding processes were found to relate to relational thought and to contextual grammatical structure (syntax). These results were discussed in terms of the relationship between coding and auditory-visual processing and the development of suitable language training programmes for retarded residents.

Adult↗
PubMed1977

Implantation of porous polymethylmethacrylate resin for tooth and bone replacement.

This study suggests that: 1. The porous plastic material tested is compatible with and showed no undesirable reactions in subcutaneous, intracerebral, intramuscular, and especially, intraosseous sites. 2. By standardizing porosity (e.g., a desired hole, any dimension, uniformly distributed) with the implant material (P.P.M.M.), one can predict with a degree of certainty that connective-tissue (collagen fibers) or hard-tissue (osteogenesis and reparative bone) ingrowth into these micropores will definitely occur. 3. The various shapes employed for implantation of the plastic material were not carcinogenic and did not cause a malignant reaction in any implanted region. 4. A close "amalgamation" with adjacent tissues was a result regardless of the implant site (e.g., intramuscular, intracerebral, or subcutaneous). Intraosseously, there was a variation. Depending upon the pore size, one observes either connective tissue or osseous ingrowth into the micropores. At a 100 micron pore size (B material), connective tissue ingrowth into the P.P.M.M. was seen. At the 450 micron size (E material), osseous tissue ingrowth into the P.P.M.M. was clearly observed. 5. The P.P.M.M. implant material can be used as a tooth replacement (e.g., for a root) at a small pore size (100 micron) and as a bone replacement (e.g., for bony defects) at a larger pore size (450 micron). 6. To secure vascularization of the implant material, porosity throughout is indicated at a large pore size. Surface porosity regardless of size will encourage only soft-tissue ingrowth into the implant material. 7. Any hard-tissue size or shape can be duplicated with the material, at any pore size, with compatibility to the adjacent tissue, regardless of the region of placement in the body. 8. There is a possibility of bone "induction" or stimulation of bone growth in predetermined directions with all its implications (e.g., periodontal disease). The replacement and repair of any hard tissue in the body (e.g., bone and teeth) are possibilities.

Animals↗
PubMedDate not supplied

Ridge preservation: important buzzwords in dentistry.

Ridge preservations is the prevention of the 40-60% jawbone atrophy that normally takes place two to three years postextraction. It is the new paradigm in patient care that is effective, simple, and beneficial for a multitude of reasons. It is achieved by the immediate grafting of the extraction socket with or without the use of an immediate implant. The ability to not only preserve the alveolar ridge for future restorative dentistry but also to preserve and restore esthetics and prevent postoperative pain and bleeding makes this modality important for all practicing dentists.

Alveolar Bone Loss↗