20.
Match the suggested PDS position (for a right-handed person) in Column II to the
area in the mouth in Column I. Items in Column II may be used more than once.
Items in Column I may have more than one correct answer.
COLUMN I
COLUMN II
(1) ___ Maxillary right posterior,
a. 12 o'clock position.
facial, and proximal surfaces.
(2) ___ Maxillary right posterior, lingual
b. 9 o'clock position.
surfaces.
(3) ___ Maxillary anterior
c. 8 o'clock position.
(4) ___ Mandibular left posterior, facial and proximal
surfaces.
(5) ___ Mandibular left posterior, lingual surfaces.
(6) ___ Mandibular anterior, left sides.
(7) ___ Mandibular anterior, right sides.
(8) ___ Mandibular right posterior, facial, and proximal surfaces.
(9) ___ Mandibular right posterior, lingual surfaces.
21.
When scaling the lingual surfaces of teeth, a mouth mirror is usually needed for
light and vision. However, for the _________________ teeth, a mouth mirror is
needed for tongue retraction.
a. Mandibular anterior.
b. Maxillary right posterior.
c.
Mandibular right posterior.
d. Maxillary left posterior.
e. Mandibular left posterior.
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