Dental Fluorosis Index (Dean’s Method) – Serum Fluoride Concentration
This test measures fluoride levels in your blood to assess exposure to fluoride, which can affect dental health and bone development.
["Blood fluoride levels help identify potential dental fluorosis or excessive exposure to fluoride."]
Key facts at a glance
- LOINC
- 32886-4
- Short code
- ID {Tooth} XR
- Synonyms
- ID {Tooth} XR
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- xr
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What This Test Measures
Fluoride is a mineral that can be found in drinking water, toothpaste, and some foods. High fluoride exposure over time may lead to dental fluorosis, a condition that affects tooth enamel. This test specifically measures fluoride concentration in your serum, which helps determine overall fluoride intake and potential health risks.
Why It’s Done
Your healthcare provider may order this test if you have concerns about fluoride exposure, especially if you’ve consumed fluoridated water or used fluoride-containing dental products. It may also be used in research or monitoring settings to track fluoride levels in populations.
Sample Preparation and Testing Process
A blood sample is collected from a vein in your arm. The serum portion of the blood is then analyzed for fluoride concentration using a specialized laboratory method, often involving high-performance liquid chromatography (HPLC) or another precise analytical technique.
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to fast for a few hours before the blood draw if instructed by your provider. Wear comfortable clothing and bring any necessary medical devices or medications.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Frequently asked questions
High fluoride levels in the blood may indicate excessive intake from sources like fluoridated water, supplements, or dental products. Dental fluorosis, characterized by discoloration or pitting of teeth, can result from chronic fluoride exposure during childhood. Conversely, very low levels may suggest limited exposure or dietary deficiencies.
How often should I get this test?
What are the normal reference ranges for fluoride in blood?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy