impression

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impression

 [im-presh´un]
1. a slight indentation or depression, as one produced in the surface of one organ by pressure exerted by another.
2. a negative imprint of an object made in some plastic material that later solidifies.
3. an effect produced upon the mind, body, or senses by some external stimulus or agent.
basilar impression
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

im·pres·sion

(im-presh'ŭn),
1. A mark seemingly made by pressure of one structure or organ on another, seen especially during cadaveric dissections. See also groove for the various impressions of the lungs, for example, descending aorta, subclavian artery, and vena cava. Synonym(s): impressio [TA]
2. An effect produced on the mind by some external objects acting through the organs of sense. Synonym(s): mental impression
3. An imprint or negative likeness; especially, the negative form of the teeth and/or other tissues of the oral cavity, made in a plastic material that becomes relatively hard or set while in contact with these tissues, made to reproduce a positive form or cast of the recorded tissues; classified, according to the materials of which they are made, as reversible and irreversible hydrocolloid impression, modeling plastic impression, plaster impression, and wax impression.
[L. impressio, fr. im- primo, pp. -pressus, to press upon]
Farlex Partner Medical Dictionary © Farlex 2012

impression

(ĭm-prĕsh′ən)
n.
Dentistry An imprint of the teeth and surrounding tissues, formed with a plastic material that hardens into a mold for use in making dentures, inlays, or plastic models.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

im·pres·sion

(im-presh'ŭn)
1. A mark seemingly made by the pressure of one structure or organ on another, seen especially in cadaveric dissections. See also groove for the various impressions of the lungs, e.g., descending aorta, subclavian artery, and vena cava.
2. An effect produced on the mind by some external object acting through the organs of sense.
3. An imprint or negative likeness; especially, the negative form of the teeth and/or other tissues of the oral cavity, made in a plastic material that becomes relatively hard or set while in contact with these tissues, made to reproduce a positive form or cast of the recorded tissues; classified, according to the materials of which they are made, as reversible and irreversible hydrocolloid impression, modeling elastic gel impression, plaster impression, and wax impression.
Synonym(s): impressio [TA] .
[L. impressio, fr. im- primo, pp. -pressus, to press upon]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

impression

In dentistry, a negative mould of the teeth or other mouth structures, made in plastic, which is later filled with Plaster of Paris to provide a perfect copy of the anatomy.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Impression

An imprint of the upper or lower teeth made in a pliable material that sets. When this material has hardened, it may be filled with plaster, plastic, or artificial stone to make an exact model of the teeth.
Mentioned in: Malocclusion
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

im·pres·sion

(im-presh'ŭn)
1. [TA] An imprint or negative likeness; especially, negative form of the teeth and/or other tissues of the oral cavity, made in a plastic material that becomes relatively hard or set while in contact with these tissues, made to reproduce a positive form or cast of the recorded tissues; classified, according to the materials of which they are made, as reversible and irreversible hydrocolloid impression, modeling plastic impression, plaster impression, and wax impression.
2. [TA] Mark seemingly made by pressure of one structure or organ on another, seen especially during cadaveric dissections.
3. Effect produced on the mind by some external objects acting through the organs of sense.
[L. impressio, fr. im- primo, pp. -pressus, to press upon]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Polyvinyl siloxane is a silicone base impression material which has been modified from condensation silicone with poly-dimethyl silicone polymer compound.
In this study 150 impressions of patients were recorded by under graduate students (students of third and final professional BDS) and 150 impressions of patients were taken by graduates (House officers and Post graduate trainees) using convenience non probability sampling technique.
Feature 'Millat ka Pasban ', Jingle ' Mein Hun Quaid Ka Pakistan', public impressions, promos and other segments will be hallmark of the 10-day programmes to be telecast by different stations of Radio Pakistan across the country.
Our career fairs are ideal places for veterans and spouses to take advantage of a unique opportunity to make that critical first impression on a potential employer.
First impressions typically require some sort of upgrade to one's existing look and behavior, or at least a conscious focus on certain looks and behaviors over others.
Frankly, most people's online impressions are dreadful.
Results: In group A, 21 (52.5%) moderate and 19 (47.5%) severe gag patients and in Group B, 16 (40%) moderate and 24 (60%) severe gag patients didn't show any gag reflex when the lignocaine was mixed with alginate impression material.
[8.] Bernard L (1984) Impressions for Complete Dentures.
Make a triple tray impression in the normal manner.
Muscat: Tour of Oman 2016 recorded a remarkable increase in the number of social media impressions across internet channels, reaching 19.8 million impressions across the world.
ISLAMABAD -- Supreme Court (SC) has ordered for verification of thumb impression of voters in the constituency of Khawaja Asif, defence minister NA-110 Sialkot and has sought report thereof from NADRA within 3 months.