DENT 1050 Chapter 21 Flashcards Preview

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Flashcards in DENT 1050 Chapter 21 Deck (15):
1

1. What does the term OCCLUSAL refer to?

Chewing surfaces of posterior teeth

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2. What size receptor is recommended for use with the occlusal technique in the adult patient?

Size 4

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3. What size receptor is recommended for use with the occlusal technique in the pediatric patient with primary dentition?

Size 2

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4. How is the patient's head positioned before exposing a maxillary occlusal receptor?

Position the patient such that the maxillary arch is parallel to the floor

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5. What are the uses of the occlusal image?

to locate retained roots of extracted teeth; to locate supernumerary, unerupted, or impacted teeth; to locate foreign bodies in the maxilla or the mandible; to locate salivary stones in the duct of the submandibular gland; to locate and evaluate the extent of lesions in the maxilla or the mandible; to evaluate fractures of the maxilla or the mandible; to aid in the examination of patients who cannot open their mouths more than a few millimeters; to examine the area of a cleft palate; to measure changes in the size and shape of the maxilla or the mandible.

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6. State the vertical angulation used for the maxillary topographic occlusal projection.

+65 degrees

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7. State the vertical angulation used for the maxillary lateral occlusal projection.

+60 degrees

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8. State the vertical angulation used for the mandibular topographic occlusal projection.

-55 degrees

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9. State the vertical angulation used for the mandibular cross-sectional occlusal projection.

90 degrees

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10. State the vertical angulations used for the maxillary and mandibular pediatric occlusal projections.

maxillary: +60 degrees; mandibular: -55 degrees

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11. In Figure 21-14, is the labeled amalgam pit buccal or lingual? Why?

Buccal. The vertical angulation of the PID went down but the amalgam went up.

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12. In Figure 21-15, is the amalgam fragment between the maxillary second and third molars buccal or lingual? Why?

Buccal. The horizontal angulation of the PID went distal but the fragment went mesial.

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13. In Figure 21-16, is the impacted canine located buccal or lingual to adjacent teeth? Why?

Buccal. The horizontal angulation of the PID went distal but the impacted canine went mesial.

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14. In Figure 21-17, is the gutta percha in the labeled canal located on the buccal or lingual side of the tooth? Why?

Lingual. The horizontal angulation of the PID went distal and the canal went distal.

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15. In Figure 21-18, is the impacted canine located buccal or lingual to adjacent teeth? Why?

****Buccal. The horizontal angulation of the PID went mesial and the impacted canine went distal.