U.S. doctors online nowAsk doctors free
A 47-year-old member asked:

what percentage of fluoride is unsafe?

3 doctor answers7 doctors weighed in
Dr. Simon Rosenberg
Dentistry 46 years experience
That Depends on Age: Fluoride as it comes in toothpaste and anti-cavity otc mouthrinses (act or fluorigard) are safe. For young kids below age 5, one has to be careful of the child swallowing a full tube. For adults with high decay rates, from radiation, medication or age-related dry mouth symptoms, Fluoride with 5000 parts per million (1000 times the level of normal toothpastes) are prescribed and care is needed.
Dr. Howard Schneider
Pediatric Dentistry 34 years experience
Above 3 ppm: Fluoride is not measured in percent. It is measured in parts per million (ppm) or miligram per liter (mg/l). 0.7-1.0 ppm is concidered ideal to help protect teeth from dental caries. Above 3 ppm (3 x the recomended dose) is definately unsafe. Only a few places in the usa (the mid-west) have unsafe Fluoride levels in their drinking water.
Dr. Arnold Malerman
Orthodontics 53 years experience
Concentration : More than 3 parts/million can cause tooth mottling. Today we tend to place less than 1 part/million in water supplies. Result is more than 75% reduction in cavities. Costs pennies/person/year, much cheaper than just one filling. Fluoride is safe and effective at the right level. Think of it this way, too much oxygen is poisonous. Ask your dentist for guidance unique to your area.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
24/7 visits
$15 per month

Similar questions

A 34-year-old member asked:

Does too much fluoride cause growth delay?

4 doctor answers8 doctors weighed in
Dr. James Ferguson
Pediatrics 46 years experience
Not reported: Fluoride is an essential element needed for healthy bone & teeth development.In areas where groundwater has high levels, a mottled staining of teeth is common and some bony changes are reported. Growth delay has not been a listed effect. Acute injestion ( eating multiple tubes of fluoridated toothpaste) can lead to a variety of problems including death.
A 36-year-old member asked:

What are the proven effects of fluoride?

3 doctor answers7 doctors weighed in
Dr. Anthony LaBarbera
Dr. Anthony LaBarbera answered
Pediatrics 28 years experience
See below: Prevention of cavities.
A 37-year-old member asked:

Health and wellness: is fluoride bad for you?

3 doctor answers7 doctors weighed in
Dr. Stanley Siu
Cosmetic Dentistry 17 years experience
Safe levels are ok: Epa has also set a secondary standard (smcl) for Fluoride at 2.0 mg/l or 2.0 ppm. Most dentists recommend the use of Fluoride to help keep your teeth strong, healthy & more resistant to cavities. The american dental association, epa, & the who (world health orgnanization) have determined that safe levels of Fluoride are safe.
A 43-year-old member asked:

What is luride (fluoride)?

3 doctor answers8 doctors weighed in
Dr. Romanth Waghmarae
Pain Management 39 years experience
Luride (fluoride): This is fluoride.
A 31-year-old member asked:

What are the proven side effects of using fluoride (at normal doses)?

3 doctor answers5 doctors weighed in
Dr. Leonard Pizzolatto
General Practice 41 years experience
Less cavities: Lower chance of tooth decay.

Related questions

A 37-year-old member asked:
3 doctor answers8 doctors weighed in
A 43-year-old member asked:
3 doctor answers6 doctors weighed in
A 45-year-old member asked:
2 doctor answers2 doctors weighed in
A 43-year-old member asked:
2 doctor answers6 doctors weighed in
A 19-year-old male asked:
2 doctor answers5 doctors weighed in

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
24/7 visits
$15 per month
Last updated Jan 31, 2020

People also asked

Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits
$15 per month

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.