Final answer:
The dentist most likely called JT about his dental appointment or treatment plan, or to provide tips on oral hygiene.
Step-by-step explanation:
The dentist most likely called JT about his dental appointment or treatment plan. These are common reasons for dentists to contact patients. The dentist may want to schedule an appointment to perform a dental procedure or discuss the treatment plan for a specific dental issue. Another possibility is that the dentist called JT to remind him about the importance of oral hygiene and to provide tips on proper oral care.