Test Preview

1. The carious lesion on the canine tooth in the below film involves which dental structures?
   • Enamel only
   • Dentin only
   • Pulp
   • Enamel and dentin
2. What type of bone loss affects the molar tooth in the below film?
   • Horizontal bone loss
   • Vertical bone loss
   • Osteosclerotic
   • Attrition
3. The radiolucency at the upper left associated with the apex of tooth #8 in the below film could be ____________.
   • an abscess
   • a cyst
   • a granuloma
   • All of the above.
4. The radiopacity to the right of the molar in the below film is ____________.
   • a root fragment
   • condensing osteitis
   • calculus
   • a maxillary torus
5. The radiolucency across the lateral incisor in the below film is ____________.
   • a fracture of the tooth root
   • a transverse carious lesion
   • a fingernail crimp artifact
   • horizontal bone loss
6. The radiopacity above the maxillary premolar in the below film is ____________.
   • calculus
   • an enamel pearl
   • an impacted supernumerary tooth
   • osteosclerosis
7. The tooth in the above film probably resulted from ____________.
   • fusion or gemination
   • evagination
   • invagination
   • fracture
8. What regressive change is illustrated in the below film?
   • Internal resorption
   • External resorption
   • Ankylosis
   • Hypercementosis
9. The radiolucency in the patient's left mandible in the below panoramic radiograph is most likely a ____________.
   • circular fracture
   • talon cusp
   • mandibular tori
   • Stafne bone cavity
10. The apical radiopacity at the base of the premolar in the below film is ____________.
    • condensing osteitis
    • external resorption
    • a root fragment
    • cervical burnout
11. A diligent search for recurrent caries should be made when radiographs detect ____________.
    • open margins on restorations
    • interproximal restoration overhangs
    • restorations which appear to end short of the preparation margins
    • All of the above.
12. A normal anomaly of the X-ray process which sometimes causes an image that looks suspiciously like interproximal caries is:
    • Proliferative gingival hyperplasia
    • Dental calculus
    • vertical bone loss
    • Cervical burnout
13. Disorders that may clinically show a peculiar translucent appearance with discoloration ranging from brown to yellow to gray is/are ____________.
    • dentinogenesis imperfecta
    • amelogenesis imperfecta
    • Turner's hypoplasia
    • All of the above.
14. ____________ is an anatomical abnormality in which a tooth's pulp chamber is elongated, enlarged, and extends into the region of the roots.
    • Taurodontism
    • Hemihypertrophy
    • Lobulated
    • Ossification
15. Dilaceration is a ____________.
    • unusual bend in the tooth crown
    • unusual bend in the tooth root(s)
    • v-shaped space between curved adjacent surfaces of teeth
    • disease condition
16. Epithelial remnants (builder's debris) can proliferate within an apical granuloma to form ____________.
    • an apical or lateral radicular cyst
    • a macrodont
    • a pulp stone
17. Which of the following is associated with the Tooth of Mummery?
    • Pulp stones
    • Impacted supernumerary molars
    • Internal root resorption
    • Periapical granuloma
    • Pyramidal teeth
18. Teeth numbering in excess of the standard 32 permanent or 20 deciduous teeth are known as:
    • Macrodonts
    • Microdonts
    • Hypodonts
    • Supernumeraries
19. Mineralized plaque seen opposite the salivary ducts is ____________.
    • proliferative gingival hyperplasia
    • dental calculus
    • an enamel pearl
    • a talon cusp
    • early concrescence
20. A congenital disease characterized by the presence of only three or four teeth, the absence of eyebrows and eye lashes, and wrinkled palms is ____________.
    • ectodermal dysplasia
    • Hutchinson's syndrome
    • Kleinfelter's syndrome
    • facial hemihypertrophy
    • Turner's syndrome
21. The approximate population-wide incidence of the maxillary torus is _____.
    • 66%
    • 33%
    • 15-18%
    • 10%
    • 25%
22. Gingival enlargements can occur as a result of ____________.
    • plaque
    • calculus
    • extrinsic factors
    • All of the above.
23. Bone loss which demonstrates remarkable variation in height relative to the adjacent tooth crowns is:
    • Internal resorption
    • Vertical bone loss
    • Socket sclerosis
    • Bundle bone
24. The laying down of excess bone in an extraction socket is known as:
    • Incomplete healing
    • Socket fibrosis
    • Socket sclerosis
    • Bundle bone
25. A tooth with the notched appearance of a screwdriver is known as:
    • Hutchinson's tooth
    • Turner's tooth
    • Tooth of Mummery
    • Kleinfelter's tooth
    • Talon's tooth