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Related to radiopacity: radiopaque, radiolucency


Not allowing the passage of x-rays or other radiation.

ra′di·o·pac′i·ty (-ō-păs′ĭ-tē) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.radiopacity - opacity to X-rays or other radiation
opacity - the phenomenon of not permitting the passage of electromagnetic radiation
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References in periodicals archive ?
Therefore, the inability to cephalometrically evaluate advancement of point A during the expansion period could be attributed to the appearance of immature bone not showing sufficient radiopacity in that region.
The lasting radiopacity allows the physician to see rather than assume where the beads are placed in the tumour, providing reassurance to patients that the treatment is getting to where it needs to be.
To find out any periapical infection of the tooth a radiographic investigation of IOPA was planned and taken which revealed loss of crown structure in relation to left maxillary anterior suggestive of root stump, and an additional finding of a well-defined radiopacity mass was evident in relation to periapical aspect of left maxillary anterior region (Figure 1).
Iodoform pastes have excellent antibacterial and anti-inflammatory properties, as well as good radiopacity and easy resorption when extruded to periapical tissues.
When the demographic data and stone characteristics of the groups were examined, no statistically significant difference was detected in age, gender, stone radiopacity, stone laterality and stone burden between patients who underwent RIRS and PNL When the groups were compared for body mass index (BMI), it was observed that the BMI value in RIRS and PNL groups was 26.4 and 25.9, respectively.
A radiopacity resembling, a tooth-like structure was seen in the periapical region of the maxillary left central incisor, suggestive of an impacted supernumerary tooth.
Generally, the radiopacity of osteoblastomas is more irregular than that of cementoblastomas.
On radiographs, intact cysts are seen as sharply demarcated and homogeneous round radiopacity. Ruptured cysts often become infected and show abscess formation.
EB is primarily composed of [Al.sub.2][O.sub.3] (68 wt%) and CaO (31 wt%), Si[O.sub.2] (0.3-0.8 wt%), MgO (0.4-0.5), and [Fe.sub.2][O.sub.3] (<0.3) + [Bi.sub.2][O.sub.3] (20 wt% wt%), to guarantee its radiopacity as required by ISO 6876 standard (4,7,8).