Which of the following describes the radiographic appearance of a radiopaque metal shell under less radiopaque porcelain outlining the tooth cusps?
A) PFM
B) Full metal crown
C) Implant
D) Glass ionomer
A
Explanation: A) A PFM is seen radiographically as a radiopaque metal shell under the less radiopaque porcelain crown outlining the cusps.
B) A PFM is seen radiographically as a radiopaque metal shell under the less radiopaque porcelain crown outlining the cusps.
C) A PFM is seen radiographically as a radiopaque metal shell under the less radiopaque porcelain crown outlining the cusps.
D) A PFM is seen radiographically as a radiopaque metal shell under the less radiopaque porcelain crown outlining the cusps.
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