Skip to product information
1 of 1

  • Images are for illustration purposes only

UltraDEX Wire-Free Interdental Brush Small/Medium - 20 Per Pack

UltraDEX Wire-Free Interdental Brush Small/Medium - 20 Per Pack

  • 1. Ozempic®️-equivalent therapy now available for weight management
  • 2. Average weight loss of 17%, with 1 in 3 patients achieving over 20%
  • 3. May help reduce osteoarthritis-related pain
  • 4. Wegovy®️ is not expected to impact the effectiveness of oral contraceptives
  • 5. Supports cardiovascular risk reduction
  • 6. Over 22 million patients treated with semaglutide-based therapies since 2018

  • ✔️ Wire-free design reduces risk of gum scratching during use
  • ✔️ Small/Medium size suits moderate interdental gaps precisely
  • ✔️ Removes plaque from spaces toothbrushes cannot reach
  • ✔️ Flexible nylon bristles gentle on sensitive or inflamed gums
  • ✔️ 20-pack provides generous supply for consistent daily use

Price Checker

Regular price £3.49
Sale price £3.49
Sale Sold out
  • Lowest price guarantee
  • Includes FREE private prescription
View full details

 

Are Interdental Brushes Small Medium the Right Choice for Your Teeth?

 

Cleaning between your teeth is just as important as brushing the surfaces you can see. The NHS recommends cleaning between your teeth every day using either floss or interdental brushes small medium size — whichever fits your gaps comfortably. UltraDEX Wire-Free Interdental Brushes in Small/Medium come in a convenient 20-pack, giving you plenty of brushes to maintain a consistent daily routine without running out quickly. At just £3.49, they're an accessible addition to any oral hygiene regime.

What sets these brushes apart is the wire-free construction. Traditional interdental brushes have a thin metal wire running through the bristle head, which can occasionally scratch gum tissue or snap during use. UltraDEX has removed that wire entirely, creating a flexible nylon bristle head that bends rather than breaks. If you're looking for a broader range of oral health products, Cured Pharmacy stocks a wide selection to support your daily dental care.

 

How Do UltraDEX Wire-Free Interdental Brushes Work?

 

The mechanism is straightforward but clinically meaningful. Plaque — the sticky film of bacteria that forms on and between teeth — is the primary driver of gum disease (periodontitis) and tooth decay (dental caries). A toothbrush simply cannot reach the proximal surfaces between teeth, which is where interdental brushes come in.

  • The flexible nylon bristles conform to the shape of the interdental space, making contact with both tooth surfaces simultaneously.
  • A gentle back-and-forth motion physically disrupts and removes the plaque biofilm.
  • Food debris trapped between teeth is dislodged and rinsed away.
  • The wire-free core means the brush flexes safely around gum tissue without the risk of metal abrasion.

 

Who Should Use UltraDEX Wire-Free Interdental Brushes?

 

These brushes are suitable for most adults who want to improve their interdental cleaning routine. They're particularly well suited to people who find traditional floss difficult to handle — for example, those with limited dexterity, arthritis, or larger interdental spaces where floss passes through too easily to clean effectively.

  • Adults with mild to moderate gum disease who need gentle daily interdental cleaning.
  • People with dental bridges, where floss threading is impractical.
  • Those with wider interdental gaps where standard floss provides insufficient contact.
  • Anyone who has been advised by their dentist or hygienist to use interdental brushes regularly.

 

How Do UltraDEX Wire-Free Brushes Compare to Standard Interdental Brushes?

 

Feature UltraDEX Wire-Free Standard Wire-Cored Brush
Core material Wire-free nylon Metal wire
Risk of gum scratching Lower Higher if wire exposed
Flexibility High — bends safely Moderate
Suitable for sensitive gums Yes Use with caution

 

Are UltraDEX Wire-Free Interdental Brushes Suitable for Sensitive or Bleeding Gums?

 

If your gums bleed when you first start using interdental brushes small medium, don't panic — this is common and usually settles within a week or two of regular use as gum health improves. However, if bleeding persists beyond two weeks, you should book an appointment with your dentist, as this may indicate underlying gum disease that needs professional treatment. You can also explore our full range of dental products at Cured Pharmacy for complementary oral care solutions.

Store the brushes in a clean, dry place between uses. Rinse each brush thoroughly after use and allow it to air dry. Do not share brushes between individuals.

This product is a medical device. Speak to your dentist or pharmacist before using if you have an underlying dental condition or have recently had oral surgery.

UltraDEX Wire-Free Interdental Brush Small/Medium - 20 Per Pack specifications
Treatment category Oral hygiene / interdental cleaning
Mechanism of action Mechanical removal of plaque and food debris between teeth
Effective for Plaque removal, gum disease prevention, interdental cleaning
Suitable for Adults; those with sensitive gums, bridges, or wider interdental spaces
Active ingredient None — mechanical device
Pack size 20 brushes per pack
Size Small/Medium
UK classification General sale — medical device
Preparation Wire-free nylon bristle interdental brush
Route of administration Oral / interdental

Specifications of UltraDEX Wire-Free Interdental Brush Small/Medium - 20 Per Pack

 

What Are UltraDEX Wire-Free Interdental Brushes and What Are They Used For?

 

UltraDEX Wire-Free Interdental Brushes are small, reusable cleaning tools designed to remove plaque and food debris from the spaces between your teeth — areas that a standard toothbrush cannot reach. They are used as part of a daily oral hygiene routine to help prevent gum disease (gingivitis and periodontitis), tooth decay, and bad breath (halitosis). The NHS advises cleaning between your teeth daily, and interdental brushes are one of the recommended methods for doing so.

The Small/Medium size is designed for moderately sized interdental gaps. Each pack contains 20 brushes, providing a generous supply for consistent daily use. These brushes contain no active pharmaceutical ingredient — they work purely through mechanical action.

 

What Do You Need to Know Before Using UltraDEX Wire-Free Interdental Brushes?

 

These brushes are generally safe for most adults, but there are some important points to be aware of before you start using them.

Do not use these brushes if:

  • You have recently had oral surgery, tooth extraction, or gum surgery — wait until your dentist confirms it is safe to resume interdental cleaning.
  • You have very tight interdental spaces where the brush cannot be inserted without force — forcing the brush can damage gum tissue.
  • You are unsure of the correct size — using a brush that is too large can cause gum trauma.

Warnings and precautions:

  • Some bleeding on first use is normal and usually resolves within one to two weeks of regular use.
  • If bleeding persists beyond two weeks, consult your dentist — this may indicate active gum disease.
  • Do not share brushes between individuals due to infection risk.
  • Keep out of reach of children under 12 years.

Known interactions:

  • No drug interactions — this is a mechanical device with no active pharmaceutical ingredient.

 

How Should You Use UltraDEX Wire-Free Interdental Brushes?

 

Using interdental brushes correctly makes a real difference to how effectively they clean. Take your time, especially when you're first getting used to them. Most people find it easiest to use them in front of a mirror.

  1. Select the correct size brush for your interdental space — the brush should fit snugly but without requiring force to insert.
  2. Gently insert the brush into the gap between two teeth at a slight angle, following the natural curve of the gum line.
  3. Move the brush back and forth several times with a gentle motion — do not scrub aggressively.
  4. Remove the brush, rinse it under running water, and move to the next gap.
  5. Work systematically around your mouth, cleaning every interdental space.
  6. After use, rinse the brush thoroughly and allow it to air dry before storing.
  7. Replace the brush when bristles become splayed or the brush loses its shape.
Indication Age Group Frequency Notes
Daily interdental cleaning Adults (18+) Once daily Use before brushing teeth
Gum disease prevention Adults (18+) Once daily Dentist may advise twice daily
Around dental bridges Adults (18+) Once daily Check with dentist for technique

If you're building a broader oral care routine, you might also want to explore our oral health collection for complementary products such as mouthwashes and specialist toothpastes.

 

What Are the Possible Side Effects of UltraDEX Wire-Free Interdental Brushes?

 

Because these are a mechanical cleaning device rather than a medicine, side effects are minimal. Most people use them without any problems at all. That said, it's worth knowing what to look out for.

Common side effects (especially in the first 1–2 weeks):

  • Mild gum bleeding — particularly if gums are inflamed or you haven't cleaned interdentally before.
  • Temporary gum tenderness or sensitivity after use.

Less common side effects:

  • Gum irritation if the brush size is too large for the space.
  • Minor gum recession with prolonged aggressive use — always use a gentle motion.

If you experience persistent pain, swelling, or bleeding that does not improve after two weeks of regular use, stop using the brushes and consult your dentist promptly.

 

How Should You Store UltraDEX Wire-Free Interdental Brushes?

 

  • Store in a cool, dry place away from direct sunlight and heat sources.
  • Keep the brushes in their original packaging until use.
  • After use, rinse thoroughly and allow to air dry — do not store wet brushes in a sealed container.
  • Keep out of reach of children under 12 years.
  • Do not use brushes past their recommended lifespan — replace when bristles are visibly worn.

Good oral hygiene doesn't stop at your teeth. If you're managing other aspects of your health alongside your dental routine, our vitamins and supplements collection includes products that support overall wellbeing, including those relevant to bone and tissue health.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy UltraDEX Wire-Free Interdental Brushes online in the UK?

You can buy UltraDEX Wire-Free Interdental Brushes Small/Medium online from Cured Pharmacy, a GPhC-registered UK online pharmacy. They are available without a prescription and are delivered directly to your door. Browse our full dental products range for more oral care options.

How do UltraDEX wire-free interdental brushes work?

UltraDEX wire-free interdental brushes use a flexible nylon bristle head — with no metal wire core — to physically dislodge plaque and food debris from the spaces between your teeth. The bristles conform to the shape of the interdental gap, making contact with both adjacent tooth surfaces as you move the brush back and forth. This mechanical action disrupts the plaque biofilm that a toothbrush alone cannot reach.

How do I use UltraDEX interdental brushes step by step?

Insert the brush gently between two teeth at a slight angle without forcing it, then move it back and forth several times with a gentle motion. Rinse the brush under running water and repeat for every interdental space in your mouth. Use them once daily, ideally before you brush your teeth so that fluoride toothpaste can reach the cleaned surfaces.

What size interdental brush do I need — small or medium?

The correct size depends on the width of the gaps between your teeth — the brush should fit snugly without needing to be forced. Small brushes suit tighter interdental spaces, while medium brushes work better for slightly wider gaps. Your dentist or dental hygienist is the best person to advise on the right size for your specific teeth.

Are UltraDEX wire-free interdental brushes safe for sensitive or bleeding gums?

Yes — the wire-free design is gentler on sensitive or inflamed gum tissue than traditional wire-cored brushes, as there is no risk of a metal wire scratching or cutting the gum. Some bleeding is normal when you first start using interdental brushes and usually settles within one to two weeks as gum health improves. If bleeding persists beyond two weeks, consult your dentist as this may indicate active gum disease.

How often should I replace my UltraDEX interdental brush?

Replace your interdental brush when the bristles become visibly splayed, bent, or worn — this is usually after several uses depending on how vigorously you clean. A worn brush is less effective at removing plaque and may also be less comfortable to use. The 20-pack gives you a good supply to replace brushes regularly without running out.

Can I use interdental brushes instead of floss?

The NHS recommends interdental brushes as an effective alternative to floss for cleaning between teeth, and some clinical evidence suggests they may remove more plaque than floss in people with larger interdental spaces. However, for very tight contacts between teeth where a brush cannot fit without force, floss may still be more appropriate. Your dentist can advise which method suits your mouth best.

Are UltraDEX interdental brushes suitable for people with braces or implants?

Wire-free interdental brushes can be suitable for cleaning around dental implants and under bridges, where threading floss is impractical. However, if you have fixed orthodontic braces, always check with your orthodontist before using interdental brushes, as the technique and appropriate size may differ. Never force a brush into a space that is too tight, particularly around dental appliances.

What is the best time of day to use interdental brushes?

Most dental professionals recommend using interdental brushes once a day, ideally in the evening before you brush your teeth. Cleaning interdentally first means that when you brush with fluoride toothpaste afterwards, the toothpaste can penetrate the now-clean spaces between teeth more effectively. Consistency matters more than timing — pick a time that fits your routine and stick to it.

How long can I keep using UltraDEX interdental brushes?

Interdental brushes are recommended for long-term daily use as part of an ongoing oral hygiene routine — there is no maximum duration. The NHS advises cleaning between your teeth every day for life to maintain healthy gums and prevent tooth decay. Simply replace each brush when it shows signs of wear and continue your routine.

What are the alternatives to UltraDEX wire-free interdental brushes?

Alternatives to interdental brushes include dental floss, floss picks, water flossers (oral irrigators), and interdental tape. Wire-cored interdental brushes from other brands are also widely available. The best alternative depends on your interdental space size, dexterity, and personal preference — your dentist or hygienist can help you choose.

Can children use UltraDEX interdental brushes?

These brushes are intended for adult use and should be kept out of reach of children under 12 years. Children's interdental cleaning needs differ from adults', and a paediatric dentist or dental hygienist should advise on appropriate interdental cleaning tools for younger patients. Always supervise children during any oral hygiene routine.

Do interdental brushes help with bad breath?

Yes — bad breath (halitosis) is frequently caused by bacteria and food debris trapped between teeth, which a toothbrush alone cannot remove. Regular use of interdental brushes removes this debris and disrupts the bacterial biofilm that produces odour-causing compounds. Combined with twice-daily brushing and regular dental check-ups, interdental cleaning is one of the most effective ways to manage bad breath.

What are the latest findings on interdental brushes and gum disease?

Clinical evidence consistently supports the use of interdental brushes as an effective tool for reducing gingivitis (gum inflammation) and plaque levels. The NHS and dental professional bodies recommend daily interdental cleaning as a cornerstone of gum disease prevention. Research published in dental literature suggests interdental brushes may be more effective than floss at reducing gingival bleeding in patients with existing gingivitis.

Is it normal for my gums to bleed when I first use interdental brushes?

Yes, mild bleeding when you first start using interdental brushes is very common and is usually a sign that your gums are inflamed due to plaque build-up — not that the brush is causing damage. With regular daily use, bleeding typically reduces significantly within one to two weeks as gum health improves. If bleeding is heavy, painful, or persists beyond two weeks, stop use and see your dentist. You can also explore our oral health range for additional gum care products.

How Should You Use UltraDEX Wire-Free Interdental Brushes?

Using your interdental brushes correctly is key to getting the most out of them. Take your time, especially when you're first starting out — most people find it helpful to stand in front of a mirror so they can see what they're doing.

Follow these steps for effective interdental cleaning:

What Is the Correct Dose of UltraDEX Wire-Free Interdental Brushes?

As a mechanical cleaning device, there is no pharmaceutical dose — but frequency of use matters just as much. The NHS recommends cleaning between your teeth once every day. Using the brushes more frequently may be advised by your dentist if you have active gum disease or are undergoing periodontal treatment.

The table below summarises recommended usage by indication:

When Is the Best Time to Use UltraDEX Wire-Free Interdental Brushes?

Most dental professionals recommend using interdental brushes in the evening, before you brush your teeth with toothpaste. Cleaning interdentally first removes the debris and plaque from between your teeth, allowing fluoride toothpaste to penetrate those spaces more effectively when you brush afterwards.

That said, the most important thing is consistency. If mornings work better for your routine, use them then — a daily habit at any time of day is far more beneficial than occasional use at the "ideal" time.

How Long Can You Use UltraDEX Wire-Free Interdental Brushes For?

There is no time limit on how long you can use interdental brushes — they are recommended for lifelong daily use as part of your ongoing oral hygiene routine. The NHS advises cleaning between your teeth every day indefinitely to maintain healthy gums and prevent tooth decay and gum disease.

Replace each individual brush when the bristles become splayed or worn, which typically happens after several uses. Continue using a fresh brush from your pack and replace the pack as needed to maintain your routine without interruption.

Do not exceed the recommended frequency of use without dental advice. If in doubt, speak to your pharmacist.

What Are the Most Common Side Effects of UltraDEX Wire-Free Interdental Brushes?

Because these are a mechanical cleaning device rather than a medicine, side effects are uncommon and generally mild. The most frequently reported experience — particularly in the first week or two of use — is minor gum bleeding. This happens because gums that haven't been cleaned interdentally regularly tend to be inflamed, and the brushing action stimulates them. It is not usually a sign that the brush is causing harm.

  • Mild gum bleeding on first use or during the first one to two weeks
  • Temporary gum tenderness or sensitivity after cleaning
  • Slight discomfort when first inserting the brush into tight spaces

What Are the Less Common Side Effects of UltraDEX Wire-Free Interdental Brushes?

Less commonly, some people experience gum irritation if they use a brush that is slightly too large for their interdental space, or if they apply too much pressure during use. These effects are usually avoidable with correct technique and the right brush size.

  • Gum irritation or soreness from using an incorrectly sized brush
  • Minor gum recession with prolonged aggressive use — always use a gentle motion
  • Temporary increased sensitivity of teeth near the gum line

What Are the Serious Side Effects of UltraDEX Wire-Free Interdental Brushes?

Serious side effects from interdental brushes are rare. However, if you experience heavy or prolonged bleeding that does not settle within two weeks of regular use, this may indicate underlying gum disease (periodontitis) that requires professional dental treatment rather than simply continuing to brush. Similarly, if you notice significant pain, swelling, or signs of infection such as pus around the gum line, stop using the brushes and seek dental advice promptly.

Do not continue using the brushes if you have recently had oral surgery, a tooth extraction, or gum surgery — wait until your dentist confirms it is safe to resume interdental cleaning.

What Should You Do If You Experience Side Effects?

If you experience mild bleeding or tenderness, continue using the brushes daily with a gentle technique — this usually resolves within one to two weeks as your gum health improves. Make sure you are using the correct brush size and not applying excessive pressure. If side effects do not improve, or if you experience pain, heavy bleeding, or swelling, stop use immediately and contact your dentist. Do not attempt to self-treat persistent gum problems without professional assessment.

Can UltraDEX Wire-Free Interdental Brushes Interact With Other Products?

As a mechanical device with no active pharmaceutical ingredient, UltraDEX Wire-Free Interdental Brushes have no known interactions with medicines or other dental products. You can safely use them alongside mouthwashes, fluoride toothpastes, and other oral hygiene products. If you are using a medicated mouthwash or gel prescribed by your dentist, follow their specific instructions regarding the order and timing of your oral hygiene routine.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

We’re a safe and
regulated UK service

Registered Pharmacy Badge

Lowest Price Guarantee

We're convinced you won't find your treatment cheaper, but if you do we'll refund the difference.

Find out more

100% discreet packaging

We're convinced you won't find your treatment cheaper, but if you do we'll refund the difference.

Find out more

Agent

Need help?
Talk to our friendly experts now

How our service works

Service Setup

Service setup

Discreet Packaging

Discreet packaging

Express Delivery

Express delivery