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Biomedical subjects

R L Cooley

Publications and source records attributed to R L Cooley.

At least 55 records · Page 3Linked to original sources
PubMed1986

The effect of an air-powder abrasive instrument on composite resin.

Three composite resins were subjected to applications of sodium bicarbonate with an air-powder abrasive instrument. Materials tested were a microfilled, a conventional, and a light-cured composite resin. Samples were tested for surface roughness before and during applications. The applications produced significant increases in roughness. It was concluded that the light-cured composite resin should be the material used for patients undergoing a recall maintenance program in which the instrument is used.

Acrylic Resins↗
PubMed1984

Endodontic flap design: analysis and recommendations for current usage.

An endodontic flap design, which may be used as an alternative to the presently described endodontic flaps, is presented. This flap involves a full-thickness dissection with easily recognizable landmarks and straight-line incisions. A beveled horizontal incision is designed to incorporate the maximum amount of facial keratinized tissue into the body of the flap, while leaving the interproximal tissues untouched. The resultant flap is easily replaced with interrupted sutures to the stable interproximal papillae. Healing is rapid, with excellent esthetic results.

Adult↗
PubMed1984

Formaldehyde emitted by chemical vapor sterilizers.

Formaldehyde has been identified as a potential occupational carcinogen and is a component of chemical solutions used in chemical vapor sterilizers. This study evaluated room air for formaldehyde in rooms where chemical vapor sterilizers were in use.

Air Pollutants↗
PubMed1984

Evaluation of a digital pulp tester.

An evaluation of a new-generation digital pulp tester revealed some significant advantages over the conventional, manually operated type. Its automatic operation and comfortable stimulation of the tooth could make this instrument a valuable addition to the dental armamentarium.

Data Display↗
PubMed1984

Plasma-cell gingivitis. Report of a case.

A well-documented case of plasma-cell gingivitis is presented. When viewed in a total perspective, the clinical examination, history of usage of a popular mint , laboratory data and histologic examination provide support for this diagnosis. This patient did not exhibit any evidence of glossitis or cheilitis as is often reported in the literature; however, a positive history to psoriasis was noted. The occurrence of plasma-cell gingivitis in a patient with documented psoriasis provides some interesting speculation regarding the etiologic picture of this condition.

Adult↗
PubMed1982

Hepatitis B vaccine: implications for dental personnel.

The available data indicate that a highly effective vaccine to combat hepatitis B has been developed. In a well-controlled, double-blind clinical study of a high risk group (male homosexuals), this vaccine stimulated the production of anti-HBs in more than 92% of the test group followed for two years. As a generalization, this new vaccine can be described as highly effective, safe, stable, and a welcome addition to preventive medicine. Dentists, in particular oral surgeons and periodontists, are in a high risk category with respect to hepatitis B exposure. This vaccine deserves considerable attention by these groups. All members of the dental profession should seriously consider the use of this vaccine as a personal and public health measure when it becomes commercially available.

Clinical Trials as Topic↗
PubMed1981

Particulate contamination of local anesthetic solutions.

Particulate contamination was found in one particular lot number of local anesthetic, lidocaine with 1:100,000 epinephrine. The contaminants were noticed in several cartridges of each container and varied in size from minute to several millimeters. Analysis of the foreign matter revealed the particles to be of a way or puttylike consistency; however, the sterility of the solution was not altered and the pH was still within acceptable limits. The contaminant was most likely wax or a combination of wax, silicone, and glycerin, which are constituents of the rubber stopper and its associated lubricants. This problem was most likely due to temperature changes during storage and shipment, but it was also possibly due to manufacturing discrepancies.

Drug Contamination↗