Under ordinary circumstances, dentists usually help maintain and save people’s teeth — not their careers. But there was nothing ordinary about the precarious state of trumpet dynamo Gilbert Castellanos’ teeth and jaw bone when he reluctantly agreed to let San Diego dentist Roy Vegter examine him in mid-2018. The acclaimed jazz musician and music educator had spent years forgoing any medical check-ups. His hesitance was the result of a botched root canal surgery and — before that — several discomfiting appointments with neurosurgeons. For the record: 9:16 AM, Jan. 17, 2021The incor...