Fluoride Varnish - Application Procedure

Application Procedure

• Although it is not necessary to do a professional prophylaxis prior to the application of a fluoride varnish, it is recommended that the teeth be cleaned with a toothbrush.
• Wiping with a cotton gauze is adequate in cases where there is no heavy plaque or debris.
• The teeth should be lightly dried with air or a cotton gauze.
• The varnish will adhere even if the teeth are moist.
• Isolate the teeth (e.g. with cotton rolls) to prevent recontamination with saliva
• A small amount of varnish (e.g. 0.5ml) is dispensed. The entire dentition may be treated with as little as 0.3-0.6 ml.
• Some manufacturers offer individual dose systems which come with their own varnish filled well.
• A small brush or applicator is then used to apply the varnish
• The varnish will set on contact with the slightly moist teeth
• The patient is instructed to avoid brushing for the rest of the day. Normal oral hygiene procedures can begin again the following day.
• As a result of the time needed for frequent reloading of the brush/applicator, Hodgson (2005) has suggested an alternative technique utilizing a 5 ml plastic syringe. This method allows a more efficient application of the varnish which can be particularly useful in cases where speed is important, such as with a difficult pediatric patient.
• In order to be effective in decay prevention the varnish should be reapplied at least twice yearly.