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O2 Tensions in the Mouth
Location O2 Tension
Anterior Surface of Tongue 16.4%
Posterior Surface of Tongue 12.4%
Maxillary Buccal Fold     0.4%
Mandibular Buccal Fold   0.3%
Supragingival area 1.0% -20%
Periodontal pockets     0.1-0.2%