DENTISTS

Set to 3 different clues across 3 published puzzles, most often “Numbers, at times” — The New York Times, Sunday, 12 October 2008.

8 letters

Every clue on record, most used first

Numbers, at timesonce
The New York Times — Sunday, 12 October 2008
They know the drillonce
The New York Times — Friday, 12 September 2008
Experts with the ends of 17- and 55-Across and 10- and 24-Downonce
The New York Times — Monday, 26 May 2008