If your dentist has been telling you to floss more, interdental brushes may be the better answer. A Cochrane systematic review found that interdental brushes reduce gingivitis and plaque more effectively than string floss, and the European Federation of Periodontology names them the method of choice for cleaning between teeth wherever the space lets a brush in without causing trauma. The catch: most people don’t know what size to buy, use the wrong technique, and give up when their gums bleed on the first try. We compared the top brands to find the best option for every budget, gap size, and sensitivity level. For complementary cleaning tools, see our guides on dental floss, floss picks, and water flossers for braces. If receding gums brought you here, the larger sizes matter more than you might expect, because recession widens the spaces between teeth: our gum recession treatment guide covers the full picture, and the soft-bristle toothbrush picks for receding gums cover the other half of the routine.
How We Evaluated Interdental Brushes
We focused on five criteria:
- Wire durability: The #1 complaint across every brand is wire bending and breaking. We prioritized brushes with reinforced or coated wires that resist buckling.
- Size range and availability: Most people need 2-3 different sizes because front teeth gaps differ from molar gaps. Brands with wider size ranges and clear sizing systems scored higher.
- Bristle quality: Soft bristles that effectively sweep plaque without abrading gum tissue. Antibacterial coatings or treatments that extend brush life.
- Value: Interdental brushes are a daily consumable. Price per brush matters more than price per pack, and reusability (typically 3-7 days per brush) affects long-term cost.
- Community feedback: We researched dental professional forums, patient communities, and user reviews to understand real-world performance, including durability, comfort, and which brands professionals actually prescribe.
GUM Proxabrush Go-Betweens Tight
GUM Proxabrush Go-Betweens Tight (40 Count)
Best for: Most people starting out — affordable, widely available, with soft antibacterial bristles and a travel cap for on-the-go cleaning
- Soft nylon bristles with antibacterial coating (up to 7 days)
- Snap-on travel cap for portable use
- Bendable neck reaches back teeth comfortably
- 40-count value pack — 4 packs of 10
- +Antibacterial bristle coating keeps each brush hygienic for up to 7 days, extending its life
- +Snap-on travel cap and bendable neck make it portable and easy to reach back teeth
- +Highest-rated interdental brush on Amazon at roughly $0.50 per brush
- −Wire can bend in very tight spaces — about 3 out of 10 uses for one common complaint
- −Only three sizes (Tight, Moderate, Wide) versus TePe's nine
(Affiliate link) · Free shipping on eligible Prime items
Why We Recommend It
GUM Proxabrush Go-Betweens consistently earn the highest ratings among interdental brushes on Amazon, and there’s a practical reason: they nail the details that daily users care about. The antibacterial bristle coating isn’t just marketing; it means each brush stays hygienic for up to 7 days of use, extending the life of each brush and reducing waste. The snap-on cap makes them portable, and the bendable neck helps reach posterior teeth without the awkward angles that cause wire breakage.
The “Tight” size fits the most common interdental gap width. At $19.99 for 40 brushes ($0.50 per brush), the value is strong, and with each brush lasting roughly a week, one pack covers approximately 9-10 months of daily use. Dental hygienists frequently recommend these for patients new to interdental brushing.
Key Features
- Antibacterial bristle coating (7-day effectiveness)
- Bendable neck for posterior tooth access
- Snap-on travel cap
- Available in Tight, Moderate, and Wide sizes
- Easy-grip triangular handle
Who It’s Best For
First-time interdental brush users and anyone looking for a reliable daily-use brush that travels well. The Tight size fits standard interdental gaps; if you find it too snug, GUM also offers Moderate and Wide versions.
Potential Downsides
Some users report the wire bends in very tight spaces: roughly 3 out of 10 uses for one common complaint. If this happens frequently, you may need a smaller size rather than forcing the Tight. The wire tip can occasionally jab gums if you’re not careful with insertion angle. Only three size options (Tight, Moderate, Wide) compared to TePe’s nine sizes.
(Affiliate link) · Free shipping on eligible Prime items
TePe Interdental Brush Original Mixed Pack
TePe Interdental Brush Original Mixed Pack (8 Count)
Best for: People who don't know what size they need — includes multiple sizes so you can find the right fit for each gap
- Multiple color-coded ISO sizes in one pack
- Plastic-coated wire prevents corrosion and reduces sensitivity
- Slim ergonomic handle
- Used by dental professionals in 60+ countries
- +Mixed color-coded ISO sizes let you find the right fit for each gap without guessing
- +Most prescribed interdental brush brand globally, used by professionals in 60+ countries
- +Plastic-coated wire is gentler on gums and enamel than bare wire
- −Only 1-2 brushes per size in the 8-pack — not enough for sustained daily use
- −Higher price per brush ($1.12) than GUM or DenTek
(Affiliate link) · Free shipping on orders $40+
Why We Recommend It
Size selection is the single biggest barrier to interdental brush adoption, and TePe’s mixed pack solves it directly. Instead of guessing which size you need (and likely guessing wrong), you get multiple color-coded sizes to try. Each color maps to a standardized ISO size, so once you find your fit, you can reorder exactly the right single-size pack. This is how dental hygienists introduce patients to interdental brushing: try several sizes, identify what fits each gap, then commit.
TePe is the most prescribed interdental brush brand globally, used by dental professionals in over 60 countries. The Swedish-made brushes feature plastic-coated wire (gentler on gums and enamel than bare wire) and a slim handle designed for easy access to posterior teeth. The 9-size range (ISO 0 through 8) is the widest available from any brand. Our link goes to TePe’s US webstore, which stocks the full size range for single-size reorders and offers a subscribe-and-save discount for repeat buyers — the mixed pack is the same $8.99 either way. The 4.3★ shown is this product’s Amazon-listing rating (5,295 ratings at our July 2026 check) — same physical product, different storefront.
Key Features
- Color-coded ISO sizing system (9 sizes available across the range)
- Plastic-coated wire for comfort and corrosion resistance
- Slim ergonomic handle
- Mixed pack for finding your optimal size
- The global professional standard—most prescribed brand worldwide
Who It’s Best For
Anyone who has never used interdental brushes before and doesn’t know their size. Also ideal for people who need multiple sizes: most people need 2-3 different sizes because the gaps between front teeth differ from those between molars. The mixed pack lets you identify exactly which sizes you need before committing to bulk single-size purchases.
Potential Downsides
At 8 brushes per mixed pack, you only get 1-2 of each size: enough to identify your fit but not enough for sustained daily use. You’ll need to reorder in single-size bulk packs once you know your sizes. The price per brush ($1.12 in this pack) is higher than GUM or DenTek because you’re paying for the variety. Some users also report the wires bend faster than expected, though this often indicates using too large a size for the gap.
(Affiliate link) · Free shipping on orders $40+
DenTek Slim Brush Advanced Clean
DenTek Slim Brush Advanced Clean (32 Count)
Best for: Budget-conscious buyers with tight spaces — 32 brushes for under $5, widely available at drugstores and supermarkets
- Slim wire design for tight interdental spaces
- Soft tapered bristles
- Mint-flavored for freshness
- 32 brushes for under $5 — lowest price per brush
- +Lowest price per brush on the list at $0.14, making daily use affordable
- +Most widely available interdental brush in the US — stocked at Walmart, Target, CVS, and grocery stores
- +Slim design targets tight interdental spaces where standard brushes don't fit
- −Thinner, more flexible wire bends more easily than premium brands
- −Only one size, and not typically recommended for moderate-to-wide gaps
(Affiliate link) · Free shipping on eligible Prime items
Why We Recommend It
At $4.40 for 32 brushes ($0.14 per brush), DenTek Slim Brush makes daily interdental cleaning affordable enough that cost stops being a barrier. They’re also the most widely available interdental brush in the US: you’ll find them at Walmart, Target, CVS, and most grocery stores, which matters when you run out and need a replacement without waiting for shipping.
The slim design specifically targets tight interdental spaces, which is where most people struggle with standard-width brushes. The 18,338 Amazon reviews (more than any other product on this list) reflect massive adoption. For people who’ve tried flossing and given up, these are an easy, low-commitment entry point.
Key Features
- Ultra-slim wire for tight spaces
- Soft tapered bristles
- Mint flavoring
- 32 count: highest count at the lowest price
- Available at virtually every US retailer
Who It’s Best For
People who want to try interdental brushes without a significant investment, and those with tight interdental spaces where standard-width brushes don’t fit. Also great for travel: the small, affordable pack means you won’t feel bad tossing a few in a travel bag.
Potential Downsides
The wire is thinner and more flexible than TePe or Piksters, which means it bends more easily: a trade-off of the slim design. Some users find the bristles softer and thinner than premium brands, resulting in less effective plaque removal in wider gaps. Only one size available, so if Slim is too tight or too loose for your gaps, you’ll need a different brand. DenTek interdental brushes aren’t typically recommended by dental professionals for patients with moderate to wide gaps.
(Affiliate link) · Free shipping on eligible Prime items
Piksters Interdental Brushes
Piksters Interdental Brushes Size 3 (40 Count)
Best for: People who want a durable brush that lasts — Piksters' reinforced wire resists the bending and buckling that plagues cheaper brushes
- Reinforced plastic-coated wire resists buckling
- Soft bristles that conform to tooth surfaces
- 40-count value pack
- 11 sizes available — widest range of any brand
- +Reinforced plastic-coated wire resists the buckling that plagues cheaper brushes
- +Recommended by over 90% of Australian dental professionals
- +11 sizes — the widest range of any single brand, including larger sizes for wider gaps
- −Less brand recognition in the US, so your dentist may not know them
- −Each brush lasts only about 3 days — shorter than GUM's 7-day coating
(Affiliate link) · Free shipping on eligible Prime items
Why We Recommend It
If you’ve given up on interdental brushes because the wire keeps bending, Piksters may change your mind. The reinforced, plastic-coated wire is noticeably more resistant to buckling than standard wire brushes: a quality difference you can feel on the first use. The soft bristles wrap around tooth contours effectively, and the plastic coating prevents the metallic taste and sensitivity that bare-wire brushes sometimes cause.
Piksters is the market leader in Australia, recommended by over 90% of Australian dental professionals. The 11-size range is the widest available from any single brand, and the company offers a variety pack for sizing, though it’s easier to find on their website than Amazon. At $14.99 for 40 brushes ($0.37 per brush), Piksters sits between DenTek’s budget pricing and TePe’s professional-grade cost.
Key Features
- Reinforced plastic-coated wire (superior buckling resistance)
- Soft, conforming bristles
- 11 sizes available (Size 00 through Size 9)
- 40-count value pack
- Recommended by 90%+ of Australian dental professionals
Who It’s Best For
People who’ve had wire-bending issues with other brands, and anyone looking for the best balance of durability and price. Also a strong option for people with periodontal disease or wider gaps from bone loss: the larger sizes (5-9) are specifically designed for widened embrasures.
Potential Downsides
Less brand recognition in the US compared to TePe or GUM, so your dentist may not have heard of them. Stock can be inconsistent on Amazon (listings sometimes show “only X left”). Each brush lasts approximately 3 days of twice-daily use, which is shorter than GUM’s 7-day antibacterial coating. Size 3 may not fit everyone: you may need to experiment with sizes 2 or 4.
(Affiliate link) · Free shipping on eligible Prime items
Curaprox CPS Prime Interdental Brushes
Curaprox CPS Prime Interdental Brushes (8 Count)
Best for: People who want the highest-quality brush available — Swiss-made with patented surgical wire that's ultra-thin yet exceptionally strong
- Patented CURAL surgical-grade wire
- Ultra-thin diameter accesses tighter spaces
- Single in-and-out motion is sufficient for cleaning
- Reusable handle system with click-in refill heads
- +Patented CURAL surgical-grade wire is thinner yet stronger, resisting bending in tight spaces
- +Single in-and-out motion cleans effectively, and brushes last longer than conventional ones
- +Reusable handle system with click-in refill heads
- −Most expensive option at $2.87 per brush — roughly 20x DenTek's cost
- −Refill pack doesn't include the holder, which is sold separately (about $5-8)
(Affiliate link) · Free shipping on eligible Prime items
Why We Recommend It
Curaprox uses a fundamentally different wire than every other brand on this list. Their patented CURAL surgical-grade wire is thinner than standard interdental brush wire yet significantly stronger; it resists bending even in tight spaces where conventional brushes buckle. The thinner diameter also means you can access gaps that would be too tight for a standard-width brush of the same ISO size.
The brush design is efficient enough that a single in-and-out motion removes plaque effectively, compared to the back-and-forth scrubbing that other brands require. This means each brush lasts longer (less bristle wear) and the cleaning is faster. Some dental professionals who’ve switched from prescribing TePe to Curaprox note the superior wire quality as the primary reason.
Key Features
- Patented CURAL surgical-grade wire (thinner and stronger than standard)
- Single in-and-out cleaning motion
- Swiss-made quality
- Reusable handle system with click-in refill heads
- 5 sizes available (CPS 06 through CPS 011)
Who It’s Best For
People willing to invest in the best available quality, and those who’ve had persistent wire-bending problems with other brands. The reusable handle system (sold separately) is also more environmentally friendly than single-use brushes. Particularly favored by periodontal patients whose dentists have prescribed premium interdental care.
Potential Downsides
At $22.99 for 8 brushes ($2.87 per brush), Curaprox is the most expensive option by a wide margin: roughly 20x the per-brush cost of DenTek. The refill pack doesn’t include a holder (sold separately for ~$5-8), adding to initial cost. Fewer sizes than TePe (5 vs 9) or Piksters (11). The color coding doesn’t match TePe or Piksters, so switching between brands requires relearning which color fits which gap. At 738 reviews, the sample size is smaller than other products on this list.
(Affiliate link) · Free shipping on eligible Prime items
GUM Soft-Picks Wider Space
GUM Soft-Picks Wider Space (50 Count)
Best for: People who find wire brushes too harsh — rubber-tipped picks that clean between teeth without the jabbing or bleeding that wire can cause
- Flexible rubber bristles — no wire core
- Adapts to tooth contours without jabbing gums
- Convenient carry case for travel
- 50-count pack for daily use
- +Flexible rubber bristles clean without the metallic jabbing, breakage, or bleeding wire can cause
- +Comparable plaque removal to wire brushes with fewer gingival abrasions
- +Easier to use one-handed — helpful for arthritis or limited dexterity, and safe on implants
- −Rubber bristles don't remove heavy plaque buildup as aggressively as wire
- −Single-use design increases waste and long-term cost
(Affiliate link) · Free shipping on eligible Prime items
Why We Recommend It
Not everyone can tolerate wire interdental brushes—and that’s OK. GUM Soft-Picks use flexible rubber bristles instead of a wire core, which means no metallic jabbing, no wire breakage, and no wire ends to dig into inflamed tissue. A systematic review of rubber-bristle interdental cleaners found no difference in plaque scores against interdental brushes and fewer gingival abrasions, while rating the certainty of that evidence as weak. Read that as a reasonable alternative for gums that can’t tolerate wire, not as a stronger cleaner.
For people who’ve tried wire interdental brushes and given up because of discomfort, bleeding, or the sensation of metal scraping between their teeth, Soft-Picks offer a gentler path to the same benefits. They’re also easier to use with one hand, which matters for people with arthritis or limited dexterity.
Key Features
- Flexible rubber bristles (no wire)
- Adapts to varying gap widths
- Carry case included
- Single-use disposable design
- Available in Original (tight) and Wider Space sizes
Who It’s Best For
People with sensitive gums who bleed easily, those with dental implants (rubber picks won’t scratch implant surfaces), arthritis sufferers who find wire brushes hard to grip and maneuver, and anyone who tried wire brushes and found them too uncomfortable to maintain daily use.
Potential Downsides
Rubber bristles don’t remove plaque as aggressively as wire bristles in heavily built-up areas: if you have significant plaque accumulation, wire brushes are more effective. They’re single-use (not reusable like wire brushes), which increases waste and long-term cost. The “Wider Space” size may still be too small for very wide gaps caused by periodontal bone loss. They’re also not a great fit for spaces that are narrow enough to require a traditional wire brush to access.
(Affiliate link) · Free shipping on eligible Prime items
Buyer’s Guide: How to Choose Interdental Brushes
The Size Question (and Why It’s the #1 Barrier)
The most common reason people abandon interdental brushes isn’t discomfort: it’s confusion about sizing. Most people need 2-3 different sizes because the gaps between your front teeth are narrower than the gaps between your molars. Using one size everywhere means it’s either too tight in front (painful, causes bleeding) or too loose in back (doesn’t clean effectively).
The best approach: ask your dental hygienist to measure your interdental spaces at your next cleaning. They can tell you exactly which ISO sizes fit each area of your mouth. If you can’t wait for an appointment, start with a mixed pack (like TePe’s) and work from the smallest size up: the brush should slide in with slight resistance but no pain.
Why Interdental Brushes Beat Floss
This surprises most people. A Bayesian network meta-analysis of 22 randomized trials, covering 10 interdental aids used alongside toothbrushing, found interdental brushes produced the largest reduction in gingival index (0.23 points, 95% credible interval 0.09 to 0.37), with water flossers next at 0.19. Ranked by the probability of being the best aid, brushes came first at 64.7% and water flossers second at 27.4%, while toothpicks and floss ranked last. Two caveats the authors raise themselves: every aid except toothpicks still beat brushing alone, so floss ranking last is not the same as floss doing nothing, and because gingival indices measure physical signs, the patient-perceived benefit of any of these aids is not clear. Professional guidance points the same way. The European Federation of Periodontology names interdental brushes the method of choice where spaces between teeth allow a brush in without causing trauma, and gives floss a role only where the gap is too tight for one; the British Society of Periodontology publishes that prevention guidance for UK patients.
Why? Wire or rubber bristles contact more surface area than a thin thread of floss. They also reach 2-2.5mm below the gum margin, where plaque buildup triggers gingivitis. Floss is still necessary for very tight contacts where no brush fits, but for most interdental spaces, brushes are the superior tool.
Bleeding Is Normal (but Only at First)
If your gums bleed the first time you use interdental brushes, don’t stop. Bleeding indicates existing inflammation: the brushes are revealing a problem, not causing one. Dental professionals consistently report that bleeding resolves within 7-14 days of daily use as the gum tissue heals.
If bleeding persists beyond two weeks of gentle daily use, see your dentist: persistent bleeding may indicate periodontal disease that needs professional treatment.
Wire Bending: Technique, Not Quality
Wire bending is the most common complaint across all interdental brush brands. In most cases, the cause is technique rather than product quality:
- Too large a size: if you’re forcing the brush in, size down
- Bending the brush to reach back teeth: creates a weak point in the wire. Use a straight or slightly angled insertion instead, or try angled brushes (TePe makes an angled version)
- Excessive force: the brush should slide between teeth with gentle pressure, not be pushed through
Cross-Brand Size Guide
Unfortunately, there’s no universal color standard across brands. Here’s a rough equivalency for the most common sizes:
| ISO Size | Gap Width | TePe Color | GUM | DenTek | Piksters |
|---|---|---|---|---|---|
| 0 | 0.4mm | Pink | — | Slim | Size 00 |
| 1 | 0.45mm | Orange | — | — | Size 0 |
| 2 | 0.5mm | Red | Tight | — | Size 1 |
| 3 | 0.6mm | Blue | — | — | Size 3 |
| 4 | 0.7mm | Yellow | Moderate | — | Size 5 |
| 5 | 0.8mm | Green | Wide | — | Size 7 |
Special Situations
Braces: Interdental brushes are specifically recommended by orthodontists for cleaning around brackets and wires; they navigate orthodontic hardware much more easily than floss. See our toothbrush for braces guide for a complete braces care routine.
Implants: Interdental brushes are preferred over floss for implant maintenance. Floss can fray on rough implant surfaces, while brush bristles conform to the abutment contours safely. Use a brush with a plastic-coated wire to avoid scratching.
Periodontal disease: If you have widened gaps from bone loss, interdental brushes are strongly indicated. Long-term use (4-5 years) has been shown to reduce tooth loss risk by 62% in patients with gum disease. Your periodontist can recommend specific sizes for your situation. For those wider, open embrasures, a rubber-tip stimulator is a tool people commonly pair with an interdental brush, see our best gum stimulators roundup.
Frequently Asked Questions
Are interdental brushes better than floss?
For most interdental spaces, yes. Systematic reviews consistently show interdental brushes remove more plaque and reduce gingivitis more effectively than floss. However, floss is still needed for very tight contacts where no interdental brush fits. Most dental professionals now recommend using both: brushes where they fit, floss where they don’t.
How often should I replace interdental brushes?
Most wire brushes last 3-7 days of once- or twice-daily use. Replace when bristles splay or the wire starts to bend. GUM Proxabrush’s antibacterial coating extends usable life to about 7 days. Curaprox brushes tend to last longer than average due to the surgical-wire construction. Rinse under water after each use and let dry.
How many sizes do I need?
Most people need 2-3 sizes. Your front teeth typically have narrower gaps than your back teeth. A mixed pack (like TePe’s) helps you identify which sizes fit where, or your dental hygienist can measure your spaces and recommend specific sizes.
Is the bleeding normal?
Yes, for the first 1-2 weeks. Bleeding when you start using interdental brushes indicates existing gum inflammation: the brushes are cleaning areas that haven’t been properly cleaned before. Continue with gentle daily use, and the bleeding should resolve within 7-14 days. If it persists beyond two weeks, see your dentist.
Can I use interdental brushes with braces?
Yes, orthodontists specifically recommend them. Interdental brushes navigate around brackets and wires more easily than floss, and they’re faster to use. Choose a size that fits comfortably between the bracket and the gum line without forcing.
Why does the wire keep bending?
Usually one of three causes: the brush is too large for the gap (size down), you’re using too much force (it should slide in gently), or you’re bending the brush to reach back teeth (insert straight or use an angled brush). If wire bending persists across multiple brands, consider Curaprox’s surgical-wire option or switching to GUM Soft-Picks.