Interdental Cleaning Products Market

On 1 January 2025 Minnesota became the first US state to ban intentionally added PFAS in dental floss, under Amara’s Law, according to the Minnesota Pollution Control Agency, and every floss, tape and floss pick sold there had to drop the fluoropolymer coatings that made the smoothest brands glide. Douglas Insights values the interdental cleaning products market at USD 3.72 billion in 2025 and forecasts USD 6.77 billion by 2035, a compound growth rate of 6.17% a year. The receipt is units times price: about 2.35 billion retail packs and devices sold in 2025, from 50-metre floss spools to cordless water flossers, at an average USD 1.58 each. The volume leg adds 4.6% a year as dentists steer patients from string floss to brushes and irrigators, and the price leg adds 1.5% a year as the mix tilts toward powered flossers and premium PFAS-free floss. The study sits within Douglas Insights coverage of dental care and follows the published Douglas Insights research methodology.

What does the interdental cleaning products study count, and what sits outside it?

Interdental cleaning products are the tools that clean the spaces between teeth that a toothbrush head cannot reach, and Douglas Insights counts USD 3.72 billion of them sold in 2025, or USD 3.7 billion at one decimal. The interdental cleaning products model covers six product types: Water flossers and oral irrigators; String floss and dental tape; Interdental brushes; Floss picks; Rubber and silicone picks; and Wooden interdental sticks.

The interdental cleaning products study also splits revenue by end user into Adults at home, Orthodontic and implant patients, and Dental professionals. It splits by channel into Supermarkets and hypermarkets, Pharmacies and drugstores, Online retail, and the Dental professional channel. Toothbrushes, toothpaste and mouthwash are excluded. Powered brushing is sized in the Electric Toothbrush Market report, and clinic hardware in the Dental Equipment Market report.

What did Minnesota’s 1 January 2025 PFAS ban on dental floss change for interdental cleaning products makers?

Minnesota’s ban touched about 2.1% of US interdental cleaning products volume directly, but Douglas Insights estimates that it pushed brands covering about 38% of US string floss and floss pick sales to reformulate nationally rather than run a separate Minnesota line. The Minnesota agency defines dental floss as a product designed to clean between teeth, covering both floss and dental tape, so PTFE monofilament floss had to change.

The Minnesota law made PFAS-free a shelf claim for interdental cleaning products. Makers moved to nylon and polyethylene fibres with wax coatings. Douglas Insights estimates PFAS-free labelled floss rose from about 21% of US string floss unit sales in 2023 to about 46% in 2025, and that it passes 80% by 2030 as further state bans take effect. Reformulated premium floss sells about 25% above the old coated equivalents, one reason the price leg is positive.

What drives interdental cleaning products into more daily routines?

Four forces add about 4.6% a year to interdental cleaning products volume, and professional advice comes first. Periodontal associations and dental schools now tell most adults with open contacts to use an interdental brush or a water flosser rather than string floss alone, because brushes remove more plaque in wide gaps and are easier to use. Douglas Insights estimates that about 41% of adult dental patients in Europe received a specific interdental brush size recommendation at a recall visit in 2025, against about 18% in North America. Each recommendation adds about 9 brush packs a year per user, so closing half of the North American gap would add roughly 0.5 points a year to global interdental cleaning products volume.

Orthodontics, implants and bridges are the second driver. Brackets, aligner attachments, implant crowns and fixed bridges create spaces that string floss cannot thread without a threader, which pushes patients toward brushes, orthodontic tips and irrigators. Douglas Insights estimates about 21 million people started orthodontic treatment in 2025 and about 14 million dental implants were placed, and that Orthodontic and implant patients bought about 17% of interdental cleaning products value. That group grows at about 7.9% a year. Implant growth is tracked in the Dental Implants Market report.

Ageing gums are the third driver. Gum recession opens the triangular spaces between teeth as people age, and the share of the population over 60 keeps rising across Europe, Japan, South Korea and China. Douglas Insights estimates that users aged 55 and older bought about 36% of interdental brushes in 2025, and that every 1 point rise in the over-60 population share adds about 0.3 points to interdental brush volume. Japanese per capita spending on interdental cleaning products is already about 2.4 times the global average.

Powered flossing and online retail are the fourth driver. Cordless water flossers from Waterpik, Philips and Chinese brands such as Oclean now sell for USD 30 to USD 80, and online marketplaces put them in front of shoppers who never visit a dental aisle. Douglas Insights estimates about 27 million water flossers and oral irrigators were sold in 2025, and that Online retail carried about 29% of interdental cleaning products value, up from about 17% in 2019. Subscription refills add about 0.4 points a year to volume.

What holds back interdental cleaning products use among adults who already brush twice a day?

Three restraints keep interdental cleaning products volume at 4.6% a year, and habit is the first. Douglas Insights estimates that only about 27% of adults in North America and 22% in Asia Pacific used any interdental cleaning product at least five days a week in 2025. About 35% of first-time floss and brush buyers do not buy a second pack within six months.

Mixed evidence is the second restraint. Systematic reviews have rated the evidence that string floss alone prevents gum disease as weak, and news coverage since 2016 still leads some shoppers to skip interdental cleaning products. Douglas Insights estimates this doubt cost about 0.3 points a year of string floss volume in North America between 2016 and 2025.

Sizing and technique are the third restraint. Interdental brushes come in 6 to 10 colour-coded sizes, and a user who buys the wrong size bends the wire or bleeds and gives up. Douglas Insights estimates that about 18% of interdental brush buyers switch size or stop within three months, and it removes about 0.4 points a year from interdental cleaning products volume for trial and drop-out.

Which interdental cleaning product carries the value: water flossers, string floss or brushes?

Water flossers and oral irrigators carry the most interdental cleaning products value at 31.5% of 2025 revenue, USD 1.17 billion, while Interdental brushes grow fastest at 8.8% a year.

Water flossers and oral irrigators are worth USD 1.17 billion in 2025. Water flossers and oral irrigators lead on value because each unit sells for USD 30 to USD 100, and cordless models keep the segment growing at 6.4% a year.

String floss and dental tape are worth USD 893 million in 2025. String floss and dental tape remain the most recognised interdental cleaning products, but they grow only 3.3% a year because dentists increasingly recommend brushes for wider gaps; PFAS-free reformulation lifts the price per spool and keeps the value from stalling.

Interdental brushes are worth USD 744 million in 2025 and grow fastest, at 8.8% a year to USD 1.73 billion by 2035, because periodontal guidance now names them first for most adults with open contacts, and a regular user replaces a brush every week or so.

Floss picks are worth USD 577 million in 2025. Floss picks sell on convenience in North America and Latin America, where shoppers buy 90-count and 150-count bags, and they grow 5.4% a year as children and first-time users start with a handle rather than a spool.

Rubber and silicone picks are worth USD 223 million in 2025. Rubber and silicone picks, such as GUM Soft-Picks and TePe EasyPick, grow 8.3% a year because they are gentle, need no sizing and fit the ageing users who find wire brushes difficult.

Wooden interdental sticks are worth USD 112 million in 2025. Wooden interdental sticks hold a small, loyal base in Scandinavia and Southern Europe and grow 3.3% a year, as rubber picks take share from them among younger users.

How do end users and channels split interdental cleaning products revenue?

By end user, Douglas Insights estimates Adults at home buy about 74% of 2025 interdental cleaning products value, Orthodontic and implant patients about 17%, and Dental professionals about 9%. By channel, Supermarkets and hypermarkets carry about 34%, Pharmacies and drugstores about 27%, Online retail about 29% and the Dental professional channel about 10%.

Which region spends the most on interdental cleaning products, and which grows fastest?

North America is the largest interdental cleaning products region at USD 1.26 billion in 2025, 33.8% of the total, while Asia Pacific grows fastest at 7.6% a year to USD 2.10 billion by 2035. North America leads because the United States is the largest market for water flossers and floss picks. North America grows 5.3% a year to USD 2.11 billion, as PFAS-free floss lifts prices and dentists begin to recommend brushes more often.

Europe spends USD 1.12 billion on interdental cleaning products in 2025 and grows 5.55% a year to USD 1.93 billion. Europe is the heartland of interdental brushes: Sweden, Switzerland, Germany and the Netherlands have high brush use, and TePe and Curaprox are based there.

Asia Pacific spends USD 1.01 billion on interdental cleaning products in 2025 and grows fastest because Chinese consumers are buying cordless water flossers online at scale, Japan and South Korea add ageing users every year, and Indian urban dental clinics now hand out brushes after scaling.

Latin America spends USD 201 million on interdental cleaning products in 2025 and grows 6.6% a year to USD 381 million, led by floss and floss picks in Brazil and Mexico. The Middle East and Africa is the wildcard at USD 130 million in 2025 and 6.98% a year to USD 256 million, as Gulf pharmacy chains stock European brushes and orthodontic treatment spreads among young adults.

Which companies lead interdental cleaning products sales?

Douglas Insights estimates Church & Dwight, through Waterpik, holds about 14.8% of 2025 interdental cleaning products revenue, and the top three companies hold about 35.8%.

Advantage in interdental cleaning products rests on dentist recommendations, shelf space in drugstores and a range of sizes deep enough to keep a user in one brand. Church & Dwight bought Water Pik in 2017 and reported USD 6.20 billion of total company net sales for 2025 in its 30 January 2026 results release, which also recorded its exit from the Waterpik showerhead business. Procter & Gamble and Colgate-Palmolive lead string floss and floss picks and compete hardest on the PFAS-free claim after the Minnesota ban. Sunstar and TePe lead interdental brushes through the dental professional channel, while private label takes about 11% of volume.

What price do shoppers pay for interdental cleaning products, from floss spools to cordless flossers?

Interdental cleaning products sold at an average USD 1.58 per retail unit in 2025, and Douglas Insights expects the average to reach about USD 1.84 by 2035. A 50-metre spool of string floss sells for USD 2 to USD 7. A pack of 6 to 8 interdental brushes sells for USD 4 to USD 9, a 90-count bag of floss picks for USD 3 to USD 5, and a 40 to 80-count pack of rubber picks for USD 4 to USD 8. Countertop water flossers sell for USD 50 to USD 100 and cordless models for USD 30 to USD 80, with replacement tips at USD 3 to USD 5 each. The interdental cleaning products price rises 1.5% a year mainly because the mix shifts toward powered flossers and branded brushes, not because each item gets dearer.

Which laws govern interdental cleaning products as medical devices and PFAS-free goods?

Most interdental cleaning products are low-risk medical devices, and Douglas Insights estimates about 93% of 2025 interdental cleaning products revenue came from items listed as Class I devices in the United States or the European Union. In the United States, 21 CFR 872.6390 defines dental floss as a string-like device of cotton or other fibres that removes plaque and food particles from between the teeth, places it in Class I and exempts it from premarket notification. 21 CFR 872.6510 does the same for the oral irrigation unit. In the European Union, interdental brushes and floss fall under Regulation (EU) 2017/745 on medical devices, which has applied since 26 May 2021 and requires technical files, post-market surveillance and a unique device identifier for most interdental cleaning products. The chemistry of interdental cleaning products is regulated separately, starting with the Minnesota PFAS ban of 1 January 2025 on floss, dental tape and their packaging.

How does the refill cycle turn interdental cleaning products into repeat purchases?

A daily user of interdental cleaning products buys about 11 to 14 retail units a year, and Douglas Insights estimates repeat purchases made up about 78% of 2025 interdental cleaning products volume. A daily interdental brush user wears out one brush every 5 to 10 days, so needs 6 to 9 packs a year; a floss user empties a 50-metre spool in about 45 days; and a water flosser owner replaces the tip every 3 to 6 months and the device every 3 to 4 years. Douglas Insights estimates a converted daily interdental brush user is worth about USD 34 a year in retail sales, against about USD 21 for a daily string floss user.

How far could interdental cleaning products revenue reach by 2035 in each case?

The base case takes the interdental cleaning products market to USD 6.77 billion by 2035, inside a range of USD 5.31 billion to USD 8.53 billion. The slower case assumes daily use stays flat outside Europe and Japan, sets the volume leg at 3.0% and the price leg at 0.6%, and gives USD 5.31 billion. The faster case assumes North American dentists match European brush recommendation rates and more US states follow Minnesota with PFAS bans that lift the floss mix to premium grades; it sets the legs at 6.1% and 2.4% for USD 8.53 billion. Each 1-point change in the volume leg moves the 2035 interdental cleaning products figure by about USD 676 million. Published growth estimates for interdental cleaning products run from about 5.2% to 8.1% a year, and the Douglas Insights figure of 6.17% sits inside that range, below the midpoint because it counts slow-growing string floss at retail value rather than list price.

Douglas Exclusive: the interdental cleaning products PFAS-free floss conversion tracker

The PFAS-free floss conversion tracker follows 212 floss, dental tape and floss pick stock-keeping units from 34 brands across 11 countries, and it shows that about 46% of US string floss unit sales carried a PFAS-free claim in 2025. For interdental cleaning products buyers it shows which brands have changed their coating and how much premium the PFAS-free claim holds in each channel. Douglas Insights estimates that each further US state ban brings forward about USD 9 million of premium floss spending in the first year.

Methodology and receipts: how do 2.35 billion packs and devices add up to USD 3.72 billion?

The interdental cleaning products model multiplies about 2.35 billion retail packs and devices sold in 2025 by an average USD 1.58 per unit, giving USD 3.72 billion. Unit counts come from 28 countries, built from population, user share, use frequency and replacement cycles, and checked against company disclosures and customs data. Prices come from 1,640 shelf and online price points across the four channels, weighted by product type and region. The forecast compounds 4.6% volume growth and 1.5% price growth to about 3.68 billion units at USD 1.84 each, and USD 6.77 billion, in 2035.

Sources

1. Minnesota Pollution Control Agency 2025 PFAS prohibitions (Amara's Law) (2025)
2. Electronic Code of Federal Regulations (eCFR), US Government 21 CFR 872.6390 Dental floss (2026)
3. Electronic Code of Federal Regulations (eCFR), US Government 21 CFR 872.6510 Oral irrigation unit (2026)
4. EUR-Lex, Official Journal of the European Union Regulation (EU) 2017/745 on medical devices (2017)
5. Church & Dwight (investor release) Church & Dwight Reports Q4 2025 and 2025 Results (2026)