The dental formula for permanent teeth is 2,1,2,3 / 2,1,2,3. What does this mean?
a) Number of incisors, canines, premolars, and molars in the upper and lower jaws
b) Number of teeth in the upper and lower jaws
c) Number of molars in the upper and lower jaws
d) Number of incisors, canines, and molars in the upper and lower jaws