Final answer:
A full denture is placed after the extraction of remaining anterior teeth and needs to be replaced or relined within 3 to 6 months.
Step-by-step explanation:
The correct answer to the question is A) Full denture. A full denture is placed immediately after the extraction of the patient's remaining anterior teeth and must be replaced or relined in 3 to 6 months due to changes in the mouth as it heals and bone reshapes after the extractions. This full denture serves as a temporary solution to help the patient with aesthetics and function while the healing process takes place. The dens (teeth) term you mentioned relates to the dentition which includes the permanent teeth; the second set of 32 teeth that emerge mainly during childhood. These include 8 incisors, 4 canines, 8 premolars, and 12 molars, which replace the deciduous teeth.