Possible Clues:

• Through-it-before reminder
• Dentist's greeting to a regular?
• “Same procedure as last time”
• Dentist's introduction?
• When it was time for the filling, the dentist asked for, well, ..
• "Then another cop said, 'Awright, tough guy, ___, let's go' ..."
• Routine statement?
• Comment to someone who needs no instructions
• ''No explanation necessary''
• ''No need for an explanation''