ECCENTRIC RELATION, ECCENTRIC POSITION: See: Occlusion, Eccentric. ECCHYMOSIS: An extravasation of blood into subcutaneous tissue or mucosa. ECOLOGY: The study of the relationships of organisms with other organisms and their environment. ECTODERMAL DYSPLASIA: See: Dysplasia, Ectodermal. EC TOPIC: Occurring in an unusual position, manner, or form, as in ectopic eruption. EDEMA: An abnormal swelling resulting […]
Glossary Of Periodontal Terms – C
CALCIFY: See: Mineralize. CALCULUS, DENTAL (Tartar ): A hard concretion that forms on teeth or dental prostheses through calcification of bacterial plaque. SUBGINGI VAL (Seruminal) C.: Calculus formed apical to the gingival margin; often brown or black, hard, and tenacious. SUPRAGINGI VAL (Salivary) C.: Calculus formed coronal to the gingival margin; usually formed more recently […]
Glossary of Periodontal Terms – B
B-CELL: See: Lymphocyte. BACTEREMIA : The presence of bacteria in the bloodstream. The term is usually qualified as being transient, intermittent, or continuous in nature. BACTERIA L SUCCESSION: A process of colonization by oral bacteria in a predictable, temporal pattern, with organisms altering theenvironment, allowing new organisms to become established or certain existing bacteria to […]
Glossary of Periodontal Terms – A
ABERRANT: Varying or deviating from the usual or normal course, form, or location. ABFRACTION: Hypothetical tooth surface abrasion in conjunction with occlusal forces; data supporting this term as a discrete clinical entity are not yet available (See Abrasion; Erosion.) ABRASION: Wearing away of a substance or structure through an abnormal mechanical process. Examples include gingival […]
GPT Terms – Z
zero-degree teeth: posterior denture teeth having 0-degree cuspal angles in relation to the plane established by the horizontal occlusal surface of the tooth— called also zero-degree nonanatomic teeth—see NONANATOMIC TEETH zinc oxide eugenol cement: a cement or luting agent resulting from mixing zinc oxide with eugenol (oil of cloves), typically dispensed in the form of a […]
GPT Terms – Y
yield strength : the strength at which a small amount of permanent (plastic) strain occurs, usually 0.1% or 0.2%, and most frequently measured in MPa or psi Young’s modulus: [Thomas Young (1773-1829) English physician and physicist] eponym for the constant of proportionality expressed in the stress-strain plot as the slope in the elastic region where elastic […]
GPT Terms – X
1X-ray : the process of exposing objects to roentgen rays and projecting their shadow on sensitized surfaces 2X-ray : see ROENTGEN RAY X-ray picture: see ROENTGENOGRAM xenogenic graft : a graft from one species to another species— called also heterologous graft xer·o·stomia : dryness of the mouth from lack of normal secretions
GPT Terms – W
warp : torsional change of shape or outline; to turn or twist out of shape wash impression slang: see FINAL IMPRESSION wave length : the distance at any instant between two adjacent crests (or identical phases) of two series of waves that are advancing through a uniform medium. The wavelength varies inversely with the vibration […]
GPT Terms – V
vacuum casting : the casting of a material (i.e., metal, plastic) in the presence of a partial vacuum vacuum investing : the process of investing a pattern within a partial vacuum vacuum mixing : a method of mixing a material such as plaster of paris or casting investment below atmospheric pressure val·ue : the quality […]
GPT Terms – T
ta·ble: a flat surface; a raised horizontal surface—see GUIDE T., OCCLUSAL T. ta·per: in dentistry, the convergence of two opposing external walls of a tooth preparation as viewed in a given plane. The extension of those average lines within that plane form an angle describe as the angle of convergence tech·nic : a detailed procedure in […]
GPT Terms – S
sad·dle n, obs: see DENTURE BASE saddle pontic obs: a pontic with a broad concave facio-lingual area of contact with the residual ridge. It is also know as a ridge lap pontic. This type of pontic is known to be uncleanseable and result in tissue irritation at the area of contact with the ridge mucosa sag·it·tal : […]
GPT Terms – R
RAD: acronym for Radiation Absorbed Dose, a unit of measurement of the absorbed dose of ionizing radiation. The biologic effect of one rad varies with the type of radiation tissue is exposed to—see also GRAY radiation : the emission of electromagnetic waves, such as light, short wave, radio, ultraviolet, or x-rays, or particulate rays such as […]
GPT Terms – Q
Q.D.: every day Q.H.: every hour Q.I.D.: four times a day Q.L.: as much as desired Q.Q.H.: every 4 hours quadrant 1: any of the four quarters into which something is divided by two real or imaginary lines that intersect each other at right angles 2: in dentistry, one of the four sections of the dental […]
GPT Terms – P
pack l: to make into a compact form 2: to completely fill 3: to crowd together 4: to compress—pack·a·bil·i·ty —pack·able pack: any material used to protect tissue, fill space or prevent hemorrhage packing : the act of filling a mold—see DENTURE P. pain : a subjective unpleasant sensory and emotional experience associated with actual or potential tissue damage […]