Found this advice.

A fourth – and just as vital – prevention practice is scheduling regular visits to your dentist, usually twice a year.

These should include updated X-rays so “we can catch any problems at the earliest stage,” he said.

“Just because something doesn’t hurt doesn’t mean something isn’t wrong” that cannot be seen visually, Dr. Salud said.

A life time of X-rays is that wise? Say 100 x-rays on your jaw in a life time. Another statistic for cancer.