Sulci is:
a. an abnormal hardening composed of mineral salts occurring within the body; stones.
b. prevention of disease; preventative treatment.
c. the area around a tooth.
d. None of the above.
Question 2
Prophylaxis is:
a. an abnormal hardening composed of mineral salts occurring within the body; stones.
b. prevention of disease; preventative treatment.
c. the area around a tooth.
d. None of the above.