A. 1/2 that of enamel
B. 1/7 that of enamel
C. 1/4 that of enamel
D. 1/5 that of enamel
Correct Answer: 1/4 that of enamel ✔
Last Updated: February 07, 2020
A. 1/2 that of enamel
B. 1/7 that of enamel
C. 1/4 that of enamel
D. 1/5 that of enamel
Correct Answer: 1/4 that of enamel ✔
Last Updated: February 07, 2020