NDEB revised questions and answers

2019-2023 NDEB Released Questions
updated
Lidocaine (Xylocaine®) is an example of a local
anesthetic which is chemically classified as an
A. amide.
B. ester.
C. aldehyde.
D. ethamine.
E. aminide.
A. amide

HINT: All amides have 2 i's in their names.

Also other amides are (Articaine, Bupivacaine, Levobupivacaine,
Mepivacaine, Prilocaine, Dibucaine, Etidocaine, Ropivacaine,
Sameridine, Tonicaine, and
Cinchocaine). Amides are metabolized in the LIVER.

Esters are metabolized by
Pseudocholinesterase in PLASMA.
Ester LA: Benzocaine, Chloroprocaine, Cocaine, Procaine,
Proparacaine,, Tetracaine, Amylocaine, Oxybuprocaine.
Which radiographic finding supports the diagnosis
of labial displacement of the root of an intruded
primary incisor?
A. Elongation.
B. Foreshortening.