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| Principal
screening test for oral cancer in |
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| asymptomatic
persons |
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| n | Involves visual
exam of oral cavity and |
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| extraoral areas
using a dental mirror |
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| n | Retracting tongue
with a gauze pad to view |
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| hard-to-see areas |
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| n | Also digital
palpation with a gloved hand for |
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| masses |
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| ohcd4_03 |
| 26 |