done to prevent caries and it in a preventive measure procedure Oral prophylaxis.

  1. a tray loaded with Fluoride gel | foam is placed on the lower arch and gentle pressure is applied.
  2. similarly the upper arch and simultaneously saliva ejector is placed in the mouth.
  3. patient must bite on the tray for about 4 mins.
  4. after removing the tray the patient in asked to expertorate.