Final answer:
The permanent maxillary central incisor arises from three lobes and they fuse together during development.
Step-by-step explanation:
The permanent maxillary central incisor arises from three lobes.
- The mesial lobe, which is the largest and located toward the midline of the mouth.
- The distal lobe, which is located away from the midline of the mouth.
- The labial lobe, which forms the outer surface of the tooth.
These three lobes fuse together during development to form the permanent maxillary central incisor.