tracing


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tracing

 [trās´ing]
a graphic record produced by copying another, or scribed by an instrument capable of making a visual record of movements.

trac·ing

(trās'ing),
1. Any graphic display of electrical or mechanical cardiovascular events, for example, electrocardiogram, phlebogram.
See also: curve.
2. In dentistry, a line or lines, scribed on a table or plate by a pointed instrument, representing a record of movements of the mandible; may be extraoral (made outside the oral cavity) or intraoral (made within the oral cavity).

tracing

Etymology: L, trahere, to draw
a graphic record of a physical event, such as an electrocardiograph tracing made by pens on a moving sheet of paper while the electric impulses of heart muscle contractions are recorded.

trac·ing

(trās'ing)
1. A graphic reproduction of the outline or salient features of a physical object or structure.
See also: curve
2. Any graphic display of electrical or mechanical events in normal or diseased tissues or organs, as detected or measured by diagnostic instruments.
See also: curve
3. dentistry A line or lines, inscribed on a table or plate by a pointed instrument, representing a record of movements of the mandible; may be extraoral (made outside the oral cavity) or intraoral (made within the oral cavity).

trac·ing

(trās'ing)
In dentistry, line or lines, scribed on a table or plate by a pointed instrument, representing a record of mandibular movements; may be extraoral (made outside the oral cavity) or intraoral (made within the oral cavity).

tracing,

n a line or lines or a pattern scribed by a pointed instrument or stylus on a tracing plate or tracing paper.
tracing, arrow point,
tracing, cephalometric
n a line drawing of pertinent features of a cephalometric radiograph made on a piece of transparent paper placed over the radiograph.
tracing, extraoral,
n a tracing of mandibular movements made outside the oral cavity.
tracing, Gothic arch,
tracing, intraoral,
n a tracing of mandibular movements made within the oral cavity. A tracing made by a mechanical device consisting of a weighted or spring-loaded stylus that is attached to one jaw and contacts a coated plate attached to the other jaw. Movement of the mandible causes a tracing to be formed on the horizontally placed coated plate. When the stylus point is in the apex of the tracing, the mandible is said to be in the horizontal position of centric relation. The shape of the tracing depends on the relative location of the marking point and tracing table. The various tracing shapes have been called
Gothic arch, arrow point, and
sea gull tracings. The apex of a properly made tracing indicates the most retruded unstrained relation of the mandible to the maxillae (i.e., the centric relation). The tracings are made by a stylus or needle point by the movement of the mandible. Unless otherwise designated, stylus tracings are made by lateral movements registered on a horizontal plate.
tracing, sea gull,
tracing, stylus,

tracing

a graphic record produced by copying another, or scribed by an instrument capable of making a visual record of movements.
References in periodicals archive ?
One of the tools to protect the public is the tracing of firearms that are recovered and working to solve those crimes with our law enforcement counterparts," said Torres.
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