Biomedical subjects

T R Cowper

Publications and source records attributed to T R Cowper.

4 recordsLinked to original sources

PubMed1995

Hydroxyapatite motility implants in ocular prosthetics.

For the past 5 years, an increasing number of ophthalmologists have been using hydroxyapatite (HA) motility implants after uncomplicated enucleation or evisceration of the eye. Unlike previous implant materials, HA promotes fibrovascular ingrowth and seemingly true integration of the motility implant to the residual ocular structures. As a result, a more stable defect and greater movement of the overlying prosthesis is produced. In addition, the problems of long-term orbital implant migration and the vexing postenucleation socket syndrome are thought to be minimized. This article briefly reviews the history and development of orbital implants and HA implant surgical and prosthetic procedures. It is concluded that HA implant rehabilitation is indicated after most uncomplicated enucleations or eviscerations where there is small likelihood of complication.

Durapatite↗

PubMed1994

Maxillofacial prosthetics: a preliminary analysis of Resource Based Relative Value Scale.

A study done by the American Academy of Maxillofacial Prosthetics to evaluate the Medicare Resource Based Relative Value Scale (RBRVS) as it relates to maxillofacial prosthetics. The method of RBRVS formulation is described. The degree of difficulty and treatment time were determined for nine Physicians' Current Procedural Terminology-edition 4 (CPT-4) codified maxillofacial procedures. A preliminary survey indicates that practice expense and malpractice expense ratios were 66% and 1%, respectively. Correlation of maxillofacial procedures to other medical procedures was not performed because an additional study with a greater sample size is needed.

Ear↗

PubMed1991

Overdentures in partial anodontia: simple solutions for complex problems.

Congenital defects in children and adolescents can present complex and challenging dental problems, including arch discrepancies, palatal defects, and malposed or otherwise disrupted dentition. Traditional treatment is often time-consuming, expensive, and in extensive defects, frequently compromised at best. The overdenture prosthesis, often overlooked, is a relatively simple and expedient solution to many of these severe problems, and the prosthetic techniques are familiar and readily employed by dentists without specialized training. This article reviews the general principles employed in these techniques and offers examples of successful treatment for several of the more commonly occurring congenital dental defects.

Adolescent↗

PubMed1984

A quick method for processing MDX-4-4210 silicone rubber.

An alternative method for processing MDX-4-4210 silicone elastomer that eliminates the recommended de-airing phase has been described. As a result, it is possible to have the processed prosthesis in hand in 30 minutes or less (in small prostheses). In addition, the use of a relatively large and costly vacuum machine is avoided. No clinical differences with respect to stability, strength, or duration between prostheses processed in this manner or the standard method have been noted.

Chemical Phenomena↗