If you are a smoker then cleaning is important. Mostly scaling should not cause much gagging. You can ask your physician to prescribe a medication ( sometimes given for motion sickness) which will reduce gag reflux. Your dentist can also prescribe it before scaling.
Health Tips
Tell your dentist to keep the headrest of the dental chair straight. That reduces gagging
Answered2018-09-27 00:50:40
Let others know if this answer was helpful