Ear Protective Devices
Hearing Loss, Noise-Induced
Long-Acting Thyroid Stimulator
Eye Protective Devices
Homes for the Aged
National Institute for Occupational Safety and Health (U.S.)
A group of elongate elasmobranchs. Sharks are mostly marine fish, with certain species large and voracious.
Double-layered inflatable suits which, when inflated, exert pressure on the lower part of the wearer's body. The suits are used to improve or stabilize the circulatory state, i.e., to prevent hypotension, control hemorrhage, and regulate blood pressure. The suits are also used by pilots under positive acceleration.
Devices that cover the nose and mouth to maintain aseptic conditions or to administer inhaled anesthetics or other gases. (UMDNS, 1999)
A high-molecular-weight polymeric elastomer derived from the milk juice (LATEX) of HEVEA brasiliensis and other trees and plants. It is a substance that can be stretched at room temperature to at least twice its original length and after releasing the stress, retract rapidly, and recover its original dimensions fully.
Dental Impression Materials
Dental Impression Technique
Procedure of producing an imprint or negative likeness of the teeth and/or edentulous areas. Impressions are made in plastic material which becomes hardened or set while in contact with the tissue. They are later filled with plaster of Paris or artificial stone to produce a facsimile of the oral structures present. Impressions may be made of a full complement of teeth, of areas where some teeth have been removed, or in a mouth from which all teeth have been extracted. (Illustrated Dictionary of Dentistry, 1982)
One of a set of bone-like structures in the mouth used for biting and chewing.
Dental Health Surveys
A systematic collection of factual data pertaining to dental or oral health and disease in a human population within a given geographic area.
Dental Care for Children
Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp.
Medium-sized terrestrial carnivores, in the genus Canis, family CANIDAE. Three species are recognized, two found only in Africa and one found in Africa, Europe, and Asia.
A family of terrestrial carnivores with long snouts and non-retractable claws. Members include COYOTES; DOGS; FOXES; JACKALS; RACCOON DOGS; and WOLVES.