Gingival retraction is done:
a. To temporarily expose the finish margin of a preparation.
b. To accurately record the finish margin of a portion of uncut tooth surface apical to the margin in the final impression.
c. Even in the presence of a gingival inflammation.
d. By various methods but the most common one is the use of retraction cord.
e. A and b.
f. A, b and c.
g. A, b and d.***
a. To temporarily expose the finish margin of a preparation.
b. To accurately record the finish margin of a portion of uncut tooth surface apical to the margin in the final impression.
c. Even in the presence of a gingival inflammation.
d. By various methods but the most common one is the use of retraction cord.
e. A and b.
f. A, b and c.
g. A, b and d.***
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crown