Fluoride Varnish Calculator
Calculate fluoride varnish dosage, application time, and reapplication frequency based on patient age and risk level.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
Varnish Dose (mL)
0.26 mL
Reapply Interval
6 months
How to Use This Calculator
- Enter the patient's age in years — dosing varies for young children versus adults.
- Select the Risk Level (1 = Low, 2 = Moderate, 3 = High) based on caries history and risk factors.
- Enter Teeth Count — typically 20 primary teeth or 28–32 adult teeth.
- Review Varnish Dose (mL) for the amount to apply at each visit.
- Note the Reapply Interval (months) and Applications per Year to plan the fluoride schedule and annual supply.
How the result changes with Number of Teeth
| Number of Teeth | Varnish Dose (mL) | Reapply Interval |
|---|---|---|
| 4.1 | 0.04 mL | 6 months |
| 12 | 0.13 mL | 6 months |
| 21 | 0.22 mL | 6 months |
| 29 | 0.31 mL | 6 months |
What each input means
- Patient Age
- Patient age in years; dosing adjusts for pediatric vs adult
- Caries Risk Level
- Caries risk assessment per ADA/AAPD guidelines
- Number of Teeth
- Number of erupted teeth present for varnish application
How this is calculated
Worked example, using the default values
- Identify Input ParametersPatient Age = 8, Caries Risk Level = 2, Number of Teeth = 24 = 3 input(s) provided
- Calculate Varnish DoseVarnish Dose0.26 = 0.26
- Calculate Reapply Interval6 = 6
- Calculate Application TimeApplication Time4 = 4
- Calculate Applications per YearApplications per Year2 = 2
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