釉质折断是（） A: enamel infraction B: crown fracture with pulp exposure C: enamel fracture D: lateral luxation

‌釉质折断是（）‎ A: enamel infraction B: crown fracture with pulp exposure C: enamel fracture D: lateral luxation

Which of the following does not belong to the dental elements? A: dentine B: enamel C: cement D: dental pulp

The hardest material produced by the body is ____. A: the enamel that makes up the outer layer of teeth B: cartilage C: bone D: muscle