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36 Cards in this Set
- Front
- Back
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A competent dental hygienist and dental assistant must be able to identify _ radiographically |
Normal Anatomy |
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Which facial bone would most likely appear on a periapical radiograph? |
Zygoma |
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Bone sometimes has a mixed radiopaque-radiolucent appearance due to the nature of the _ patterns |
Trabecular |
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What will most likely appear as a radiopacity outlining the tooth root |
Lamina dura |
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When nutrient canals open at the surface of the bone, they often appear radiographically as _. |
Small radiolucent dots |
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Which structure appears radiolucent? Enamel cementum dentin pulp chambers |
Pulp chambers |
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On a periapical radiograph of the maxillary molars, what structure may be recorded superimposed over the roots of the maxillary teeth? |
Zygomatic process |
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Best recommended sequence for learning to identify normal radiographic anatomy? |
Maxillary or mandible? Anterior or Posterior? Radiopaque or Radiolucent? |
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A mandibular landmark that may appear on periapical radiograph in maxillary posterior region? |
Coronoid process |
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Inverted Y landmark is composed of... |
Lateral wall of the nasal cavity and anterior border of the maxillary sinus. |
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A dense, vertical radiopacity separating two paired oval radiolucencies observed in the maxillary anterior region. |
Nasal septum |
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Large, paired oval radiolucencies separated by a dense, vertical radiopacity observed in the maxillary anterior region. |
Nasal fossae |
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A thin radiolucent line resembling a fracture observed between the maxillary central incisors. |
Median palatine suture |
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A round or pear shaped radiolucency observed between the maxillary central incisors. |
Incisive foramen |
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A broad, u-shaped radiopacity observed superimposed over the maxillary posterior teeth roots. |
Zygomatic process |
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A radiopaque downward projection of bone that appears pointed or hooklike observed in the maxillary posterior. |
Hamulus |
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A large triangular shaped radiolucency observed superimposed over the maxillary tuberosity region. |
Coronoid process |
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A large radiolucency outlined by a thin radiopaque border that is observed in almost all the periapical radiographs of the maxilla, from the canine posteriorly. |
Maxillary sinus |
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A very small, round radiolucency observed in the midline apical to the mandibular incisors. |
Lingual foramen |
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A horizontal radiopaque line extending from the premolar region to the symphasis... |
Mental ridge |
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A round, radiolucency that resembles an abscess observed near the apex of the mandibular second premolar |
Mental foramen |
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A horizontal radiopaque line observed in the mandibular posterior region, superimposed across the molar roots... |
Oblique ridge |
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Another horizontal radiopaque line observed in the mandibular posterior region, but inferior to the oblique ridge, and is observed inferior to the molar roots. |
Mylohyoid ridge |
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A large, irregularly shaped radiolucency observed inferior to the mylohyoid ridge. |
Submandibular fossa |
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Amalgam and a full metal crown can be distinguished from each other radiographically by their _ and _. |
Shape and margins |
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Which dental restorative appears most radiopaque? |
Amalgam |
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Which dental restorative procedures is most likely to mimic decay radiographically? |
Composite |
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Dens in dente appears radiographically as...? |
A tooth within a tooth |
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A sharp bend in the tooth root is called... |
Dilaceration |
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Raiographically, it is not possible to accurately differentiate between a periapical abscess, a granuloma, and a cyst. Radiographically, it is not possible to accurately differentiate between carcinoma and sarcoma. |
Both are true |
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A large radiolucency surrounding the crown only of an unerupted tooth is most likely what kind of cyst? |
Dentigerous |
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The evidence of root resorption that appears to shorten the tooth root is called _. |
External resoprtion |
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The radiographic appearance of a small ovoid radiopacity within the pulp chamber of the tooth is called a... |
Pulp Stone |
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What appears radiolucent in its early stages and as a radiopaque mass in later stages? |
Periapical cemental dysplasia (PCD) |
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What tumor is radiolucent radiographically? |
Sarcoma |
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Radiographic evidence of a bone fracture appears as a radiolucent line that may resemble a... |
Nutrient canal. |
