Dental The range of level of fluoride secreted by the glands into the mouth is A 0.004-0.005 ppm B 0.006-0.007 ppm C 0.007-0.05 ppm D 0.007-0.08 ppm 💡 Explanation The range of level of fluoride secreted by the glands into the mouth is ✓ Correct Answer: C. 0.007-0.05 ppm