Enlarged anatomical of molars

■ Molars have three root simulators magnified by about 8 times, which are upper permanent molars with four crown nodules. They can be decomposed into two parts through two coronal sections of the roots and one sagittal section of the roots. There are a total of eight numerical indicators and corresponding textual explanations (crown, neck, root, enamel, dentin, cementum, pulp, and crown nodules).