This page helps you check whether you are likely to be eligible for a prescription high-fluoride toothpaste (such as Duraphat 5000ppm or 2800ppm, and sodium fluoride equivalents) during an online consultation. It also explains what information you may be asked for, why those checks matter, and when you should see a dentist instead.

You can also browse the wider Dental & Oral treatments category and our high-fluoride toothpaste hub for related guides:

Table of Contents

What this eligibility checklist covers

High-fluoride toothpaste is used to reduce the risk of tooth decay (dental caries) in people who are at higher-than-average risk. Because these toothpastes contain much more fluoride than standard supermarket toothpaste, a clinician needs to confirm the right strength, the right age band, and that the use is appropriate for your situation.

Step 1: Check the age rules first

In the UK, the most common prescription high-fluoride strengths are 2,800 ppm and 5,000 ppm fluoride. Age eligibility differs by strength:

Strength	Typical eligibility	Why it matters
5,000 ppm fluoride toothpaste	Adults and adolescents aged 16+ (as prescribed)	Higher fluoride exposure; not suitable for younger children due to swallowing risk and fluorosis risk.
2,800 ppm fluoride toothpaste	Adolescents and children aged 10+ (as prescribed)	Intermediate strength used for higher-risk patients aged 10+ when 5,000 ppm is not appropriate.

If you are under the minimum age for a strength, you should not use it. During an online consultation, age is one of the first checks because it determines which strength can even be considered.

Step 2: Do you meet ‘high risk of tooth decay’ criteria?

High-fluoride toothpaste is usually recommended when you have current decay, repeated past decay, or risk factors that make decay more likely. Use the checklist below as a practical screening tool.

High-risk checklist (tick what applies)

You have had tooth decay in the last 12-24 months (new fillings, recurrent decay, or visible cavities).
You have exposed root surfaces (gum recession) or root caries risk.
You get frequent sugar exposures (snacks/sugary drinks) or have difficulty changing diet.
You wear orthodontic appliances (braces, aligners with attachments) or have retainer-related plaque traps.
You have a dry mouth (xerostomia) due to medicines, medical conditions, or treatment (including head/neck radiotherapy).
You have reduced manual dexterity or struggle with brushing due to disability or illness.
You have existing enamel weakness (erosion, hypomineralisation) where extra fluoride protection is advised by a dental professional.
You have dentures over natural teeth (overdentures) or complex restorations where plaque control is difficult.

If none of the above apply, you may still benefit from optimising your routine with a standard fluoride toothpaste (usually 1,350-1,500 ppm) and improving brushing technique. But if two or more apply, a clinician may consider a prescription strength, depending on the full assessment.

Step 3: What evidence might be needed in an online Duraphat consultation?

For prescription-only toothpaste, clinicians aim to document a clear reason for use and ensure safe supply. That typically means you may be asked for some combination of the following (exact requirements can vary):

A. Dental history and current risk

When you last saw a dentist and whether you currently have a regular dentist.
Any recent fillings, crowns, root canal treatment, or known decay diagnoses.
Whether you have been prescribed high-fluoride toothpaste before, and which strength.
Key symptoms: tooth sensitivity, visible holes, pain (note: pain can be a red flag see ‘When to see a dentist’).

B. Proof of prescription or recommendation (if you have it)

If you already have a dental prescription, letter, or treatment plan recommending a high-fluoride toothpaste, uploading a clear photo or scan can speed up the clinical decision. This can also help confirm the exact strength.

C. Identity and safeguarding checks

Because this is a prescription-only medicine in the UK, you may be asked to confirm identity details and eligibility. This can include your date of birth and address details, and sometimes additional safety checks depending on your history.

D. Medication and medical conditions

High-fluoride toothpaste is generally safe when used correctly, but clinicians still check for relevant allergies and for conditions that change risk. Be prepared to mention: allergy history (especially to sodium fluoride or other toothpaste ingredients), dry-mouth causing medications, and any head/neck radiotherapy history.

Step 4: Which strength is more likely 2,800 ppm or 5,000 ppm?

A clinician will decide the strength based on your age and caries risk. A simple way to think about it:

If you are 16 or over:

5,000 ppm is commonly used when you have active decay, repeated decay, root caries risk, severe dry mouth, or other strong risk factors. 2,800 ppm may be chosen if risk is moderate, if you are stepping up from standard toothpaste, or if adherence is the main goal.

If you are 10 to 15 years old:

2,800 ppm is the usual prescription high-fluoride option because 5,000 ppm is not intended for under-16s. In this age group, the focus is on supervised brushing, correct pea-sized amount, and spitting out without rinsing.

Step 5: Safe-use rules clinicians expect you to follow

Eligibility is not only about needing high fluoride it is also about using it safely. During a consultation, you may be advised to follow these core rules:

Use a small amount on the brush (a ribbon or pea-sized amount, depending on advice).
Brush thoroughly for the full recommended time (often around 2-3 minutes).
Spit out after brushing. Do not swallow.
Do not rinse with water after spitting-this helps fluoride stay on the teeth longer.
Keep the toothpaste out of reach of children and do not share it with anyone else.
Use it as prescribed (some products are advised twice daily; some guidance may include up to three times daily for 5,000 ppm).

If you have a history of swallowing toothpaste, have learning difficulties that affect safe brushing, or you are caring for a child using 2,800 ppm, supervision and careful dosing become part of the eligibility decision.

Product options you may be prescribed (with equivalents)

Clinicians may prescribe Duraphat-branded toothpaste or a sodium fluoride equivalent at the same fluoride strength. These product pages can help you compare pack size and availability:

When you should see a dentist instead of (or before) requesting high-fluoride toothpaste

High-fluoride toothpaste helps reduce future decay risk, but it does not replace diagnosis or urgent dental care. If you have any of the following, you should arrange a dental assessment as soon as possible:

Severe toothache, swelling, facial pain, fever, or pus (possible infection/abscess).
Bleeding gums with loose teeth, rapid gum recession, or suspected gum disease requiring periodontal treatment.
A broken tooth, lost filling/crown, or sharp edges causing pain or injury.
Persistent mouth ulcers, unexplained lumps, or patches that do not heal within 2-3 weeks.
You have not had a dental check-up in a long time and suspect multiple cavities.

In these situations, the priority is diagnosis and treatment planning. A dentist can still recommend prescription fluoride, but as part of an overall plan.

What a typical online eligibility decision looks like (simple flow)

If you are unsure, this is a simplified flow used in many clinician-led assessments:

Confirm age band (10+ for 2,800 ppm; 16+ for 5,000 ppm).
Confirm high-caries-risk status (recent decay or clear risk factors).
Rule out red flags needing urgent dental care.
Confirm you can use it safely (no swallowing risk; able to follow ‘spit, don’t rinse’ routine).
Choose the strength that matches risk level and age.
Provide instructions, safety advice, and a follow-up plan (e.g., reassess at the next dental visit).

FAQs

Is high-fluoride toothpaste the same as ‘whitening’ toothpaste?

No. High-fluoride toothpaste is prescribed mainly for decay prevention and control. Whitening toothpastes focus on stain removal and do not typically provide the same fluoride level.

Can I use 5,000 ppm toothpaste if I am 15 and nearly 16?

No. The age rule is based on the product indication and safety considerations. A clinician will choose an appropriate option for your age band.

Do I need proof of dental decay to be eligible?

Not always. A clear risk profile (for example dry mouth from medication plus past decay) can be enough. But if you have a dentist letter or prior prescription, it can help.

How long will I need to use it?

Some people use it short-term during a high-risk period; others need it long-term (for example ongoing dry mouth). Your dentist can advise at review.

Can I buy it without a prescription?

In the UK, 2,800 ppm and 5,000 ppm toothpastes are generally supplied as prescription-only medicines, so a clinician needs to approve supply.