# Dental Floss, Picks & Tongue Cleaners Floss, picks, interdental brushes and tongue cleaners all remove what a toothbrush bristle cannot reach, but the right tool depends on how tight the gap between teeth is and whether debris sits between teeth or on the tongue's surface. Material and shape decide how gently each tool does that job, not price. ## How it works Floss is a thin nylon or PTFE strand pulled between two teeth to scrape plaque and food off the sides the toothbrush misses; a floss pick holds a short length of that same strand in a plastic fork so it does not need finger-wrapping. An interdental brush is a tiny bottlebrush on a wire, sized to the actual gap (embrasure) between two teeth, so its bristles contact both tooth sides at once the way floss only grazes them. A tongue cleaner is a rigid or flexible strip or rake drawn front-to-back over the tongue's surface to lift the bacterial coating that causes most bad breath, a job none of the interdental tools do. ## How an expert narrows the choice ```mermaid timeline section 1 · Tool type floss : ask Floss format, Floss material, Waxed or unwaxed, Added coating, Flavor : skip Holder type, Pick angle, Brush size (ISO 16409), Brush head shape, Wire coating, Handle neck angle, Filament softness, Tongue cleaner material, Tongue cleaner shape, Scraping edges floss_pick : ask Holder type, Pick angle, Floss material, Waxed or unwaxed, Added coating, Flavor : skip Floss format, Brush size (ISO 16409), Brush head shape, Wire coating, Handle neck angle, Filament softness, Tongue cleaner material, Tongue cleaner shape, Scraping edges interdental_brush : ask Brush size (ISO 16409), Brush head shape, Wire coating, Handle neck angle, Filament softness : skip Floss format, Floss material, Waxed or unwaxed, Added coating, Holder type, Pick angle, Tongue cleaner material, Tongue cleaner shape, Scraping edges, Flavor tongue_cleaner : ask Tongue cleaner material, Tongue cleaner shape, Scraping edges : skip Floss format, Floss material, Waxed or unwaxed, Added coating, Holder type, Pick angle, Brush size (ISO 16409), Brush head shape, Wire coating, Handle neck angle, Filament softness, Flavor section 2 · Gap between teeth open_gap : ask Brush size (ISO 16409) : skip Floss format snug_contact : ask Floss format : skip Brush size (ISO 16409) section 3 · Grip style handle_or_pick_preferred : ask Holder type, Pick angle : skip Floss format finger_held_string : ask Floss format, Floss material : skip Holder type, Pick angle ``` 1. **Tool type.** Floss, a floss pick, an interdental brush, or a tongue cleaner? Each tool cleans a different site with a completely different spec sheet, so this decides which facet set below even applies. If floss: ask Floss format, Floss material, Waxed or unwaxed, Added coating, Flavor; skip Holder type, Pick angle, Brush size (ISO 16409), Brush head shape, Wire coating, Handle neck angle, Filament softness, Tongue cleaner material, Tongue cleaner shape, Scraping edges. If floss_pick: ask Holder type, Pick angle, Floss material, Waxed or unwaxed, Added coating, Flavor; skip Floss format, Brush size (ISO 16409), Brush head shape, Wire coating, Handle neck angle, Filament softness, Tongue cleaner material, Tongue cleaner shape, Scraping edges. If interdental_brush: ask Brush size (ISO 16409), Brush head shape, Wire coating, Handle neck angle, Filament softness; skip Floss format, Floss material, Waxed or unwaxed, Added coating, Holder type, Pick angle, Tongue cleaner material, Tongue cleaner shape, Scraping edges, Flavor. If tongue_cleaner: ask Tongue cleaner material, Tongue cleaner shape, Scraping edges; skip Floss format, Floss material, Waxed or unwaxed, Added coating, Holder type, Pick angle, Brush size (ISO 16409), Brush head shape, Wire coating, Handle neck angle, Filament softness, Flavor. Skip if already known: a query that already names floss, picks, interdental brush, or tongue scraper, an earlier answer naming bristle wire, pick shape, or tongue coating. 2. **Gap between teeth.** Do your teeth touch snugly, or is there a visible gap? Dentists classify this gap in three types; snug contacts call for floss or tape, open gaps are cleaned better by a sized interdental brush. If open_gap: ask Brush size (ISO 16409); skip Floss format. If snug_contact: ask Floss format; skip Brush size (ISO 16409). Skip if already known: an earlier answer naming gum recession, braces, or implants, a query already naming an interdental brush size. 3. **Grip style.** Floss with your fingers, or prefer a handle or pick? Finger-held string needs dexterity and can trigger a gag reflex reaching back teeth; a handle or pick trades some reach control for easier grip. If handle_or_pick_preferred: ask Holder type, Pick angle; skip Floss format. If finger_held_string: ask Floss format, Floss material; skip Holder type, Pick angle. Skip if already known: an earlier answer naming a floss holder, pick, or gag reflex. ## What to surface ### Tool type Whether the item is a strand of floss, a floss pick (floss pre-mounted on a plastic fork), an interdental brush (a tiny bristled brush on a wire), or a tongue cleaner. It decides which spec actually matters: floss's material and wax, a pick's shape and holder, a brush's ISO size and wire coating, or a tongue cleaner's material and shape. Asking this first avoids asking about wire coating on a strand of floss. [1] [2] Values: floss, floss_pick, interdental_brush, tongue_cleaner. Question to ask: Floss, a floss pick, an interdental brush, or a tongue cleaner? Used as: top-level split, filter. Data: derived from listing fields, backfill cost low. Look for it as: Derive from the product title ('floss', 'floss picks', 'interdental brush', 'tongue scraper/cleaner'). Title keyword match covers nearly every listing; multi-packs mixing types are rare and usually say 'kit' or 'set' in the title. ### Grip style Whether the buyer wraps floss around their fingers directly or prefers a pick, fork, or reusable handle to hold it. A handle or pick trades some control over tension and reach for much easier grip, and is the usual recommendation where spacing or a gag reflex makes finger-held flossing difficult. [2] Values: finger_held_string, handle_or_pick_preferred. Question to ask: Floss with your fingers, or prefer a handle or pick? Used as: top-level split, filter. Data: needs research, backfill cost high. Look for it as: Never on a listing; this is a buyer self-report. Not inferable from the product; asked of the buyer. ### Gap between teeth Dentists classify the interproximal (embrasure) space as Type I (gum fills it completely, teeth touch snugly), Type II (gum partially fills it), or Type III (gum does not fill it, a visible gap). Floss and dental tape are the right tool for Type I snug contacts; Type II and III open gaps are cleaned more thoroughly by a correctly sized interdental brush, which a 2019 Cochrane review found may outperform floss there. [2] [1] Values: snug_contact, open_gap. Question to ask: Do your teeth touch snugly, or is there a visible gap? Used as: top-level split, filter. Data: needs research, backfill cost high. Look for it as: Never on a listing; this is a buyer self-report, not a product attribute. Cannot be backfilled from a listing at all; it is asked of the buyer, not inferred from the product. ### Floss format The shape the floss comes in: regular round string, wider flat dental tape, superfloss (a stiff threader end plus a tufted yarn-like section), or a plain floss threader for bridges and braces. Tape covers more surface on people with larger tooth contact areas; superfloss and threaders are built to get under a fixed bridge or through orthodontic wire where plain string cannot pass. [2] [1] Values: string, tape, superfloss_tufted, threader. Question to ask: Regular string, wider tape, or do you have a bridge or braces? Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Almost always in the title ('Dental Tape', 'Super Floss', 'Floss Threaders'). Title keyword match; default to 'string' when the title says nothing else. Chart: position on a width axis, string narrowest, tape widest. ### Holder type Whether the floss-holding handle is a one-time disposable molded pick, or a reusable continuous-floss holder that gets re-threaded with fresh floss each use. A disposable pick is thrown away after one use and generates more waste; a reusable holder keeps the handle indefinitely and only the floss segment changes, at the cost of re-threading it yourself each time. [2] Values: disposable_molded_pick, reusable_continuous_holder. Question to ask: A throwaway pick, or a handle you re-thread? Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Usually clear from the title ('Floss Picks' implies disposable; 'Floss Holder' implies reusable). Title keyword match; default to disposable_molded_pick, the far more common retail format. ### Wire coating Whether the metal wire core is coated in plastic or nylon, or left as bare metal. Around dental implants, a bare metal wire can scratch the implant surface or, in rare cases, cause a small electric shock against metal restorations; brushes marketed for implant care use a coated wire specifically to avoid this. [1] Values: coated_wire, bare_metal_wire. Question to ask: Do you have implants or metal crowns to protect? Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Stated in bullet copy when relevant ('implant-safe', 'coated wire'); absent copy usually means bare metal. Keyword match on bullet copy for 'implant' or 'coated'; default to bare_metal_wire when unstated. ### Tongue cleaner material What the cleaner is made of: plastic, stainless steel, copper, silicone, or a combination. Copper has a long history in Ayurvedic practice and is marketed for a mild antimicrobial effect; stainless steel holds a firm scraping edge and is dishwasher-durable; plastic and silicone are cheaper and gentler but wear or stain faster. [4] Values: plastic, stainless_steel, copper, silicone, combination. Question to ask: Plastic, metal, copper, or silicone? Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Almost always in the title ('Copper Tongue Scraper', 'Stainless Steel Tongue Cleaner'). Title keyword match; default to plastic when the title says nothing else. Chart: position on a rigidity/durability axis, metal firmest. ### Brush size (ISO 16409) The standardized size number, 0 (narrowest) through 8 (widest), set by ISO 16409 for manual interdental brushes, based on the passage hole diameter the wire can pass through without bending. A brush one size too small leaves plaque behind; one size too large forces the gum tissue and can injure it. Matching the number to the actual gap is the entire point of buying a sized brush rather than a generic one. [3] [1] Values: size_0, size_1, size_2, size_3, size_4, size_5, size_6, size_7, size_8. Used as: filter, sortable, shown on the card. Data: on the listing, backfill cost medium. Look for it as: Stated as a size number or color on the package and usually in the listing title ('Size 3', 'Green'). Title/package keyword match for the size number; color-to-size mapping is not standardized across brands, so color alone cannot be trusted without the brand's own chart. Chart: position on a gap-width axis, size 0 narrowest to size 8 widest. ### Floss material What the strand is made of: nylon multifilament (many fine twisted strands), PTFE monofilament (one slick plastic strand), or natural silk. PTFE monofilament slides between tight contacts without fraying or shredding, while nylon multifilament is cheaper and grips debris better but can fray or shred on sharp contacts; silk is the historical, biodegradable option some buyers now seek out again. [2] [1] Values: nylon_multifilament, ptfe_monofilament, silk_natural. Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Usually in the title or bullet copy ('PTFE', 'glide', 'shred-resistant' implies monofilament; 'silk' is stated explicitly). Title and bullet keyword match; default to nylon_multifilament, the most common and oldest synthetic material, when unstated. Chart: position on a shred-resistance axis, PTFE highest. ### Waxed or unwaxed Whether the strand is coated in wax, which helps it slide, or left unwaxed. Studies the ADA cites found no difference in cleaning effectiveness between waxed and unwaxed floss; wax mainly changes how easily the floss slides through tight contacts, not how well it cleans. [1] [2] Values: waxed, unwaxed. Question to ask: Waxed, for easier sliding, or unwaxed? Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Almost always stated in the title ('Waxed' or 'Unwaxed'). Title keyword match; default to waxed, the more common retail option, when unstated. ### Added coating Whether the floss carries an added fluoride coating, an antibacterial agent, or neither beyond flavoring. Some waxed flosses add fluoride or an antibacterial agent on top of the base wax, marketed as extra cavity or gum-disease protection on top of the mechanical cleaning the strand itself provides. [1] Values: none, fluoride_coated, antibacterial_coated. Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Stated in bullet copy when present ('with fluoride', 'antibacterial'); absent copy means none beyond flavoring. Keyword match on bullet copy; default to none when unstated. ### Pick angle Whether the pick's floss-bearing fork is angled like a Y, reaching back teeth more easily, or like an F, reaching front teeth more directly. The angle changes which teeth the pick reaches comfortably without twisting the wrist; Y-shaped picks are the more common all-purpose angle. [2] Values: y_shaped, f_shaped. Question to ask: A Y-shaped pick, or an F-shaped one? Used as: filter, shown on the card. Data: on the listing, backfill cost medium. Look for it as: Stated or shown in title/images; many listings do not specify and default to Y-shaped. Many listings do not state the shape; it often requires a product image read, the same situation as interdental_brush_shape and tongue_cleaner_shape. Default to y_shaped, the more common shape, when unstated. ### Brush head shape Whether the bristled head is cone-shaped (tapering to a point) or cylindrical (even diameter along its length). A cone shape self-adjusts to varying gap widths along a single gap and is the more common general-purpose shape; a cylindrical head gives even contact across a more uniform gap. [1] Values: conical, cylindrical. Question to ask: A cone-shaped brush tip, or cylindrical? Used as: filter, shown on the card. Data: on the listing, backfill cost medium. Look for it as: Usually shown in product images; stated in title less often. Needs a product image read when the title omits it; default to conical, the more common shape, when unknown. ### Handle neck angle Whether the brush's neck runs straight off the handle or is pre-angled, so the bristled tip reaches back teeth without twisting the wrist. TePe's own lineup splits on exactly this axis (Original's straight head and short handle versus the Angle line's pre-angled head on a longer handle); an angled neck is the main way a brush reaches molars comfortably. [5] [3] Values: straight_neck, angled_neck. Question to ask: A straight brush neck, or one pre-angled for back teeth? Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Usually named in the product line name when present ('Angle', 'Angled'); unnamed models default to straight. Title/line-name keyword match; default to straight_neck, the more common base line, when unstated. ### Filament softness Whether the brush's bristle filaments are the standard stiffness or an extra-soft version, marketed for sensitive or inflamed gums. Extra-soft filaments flex more against inflamed or receding gum tissue, trading some scrubbing firmness for comfort, which matters right after a deep cleaning or during active gingivitis. [5] Values: standard_filament, extra_soft_filament. Question to ask: Standard bristles, or extra-soft for sensitive gums? Used as: filter, shown on the card. Data: on the listing, backfill cost low. Look for it as: Usually named in the product line name when present ('Extra Soft'); unnamed models default to standard. Title/line-name keyword match; default to standard_filament when unstated. ### Tongue cleaner shape Whether the cleaner is a U-shaped strap pulled forward across the tongue, a rake or small-bristled head, or a flat handled scraper. A U-shaped strap covers the full tongue width in one pass and is the most common modern shape; a bristled rake works more like a brush on the coating; a flat handled scraper gives more pressure control over a smaller area. [4] Values: u_shaped_strap, rake_or_bristle, flat_handle_scraper. Question to ask: A U-shaped strap, a bristled rake, or a flat scraper? Used as: filter, shown on the card. Data: on the listing, backfill cost medium. Look for it as: Usually clear from product images; sometimes named in the title. Needs an image read when the title omits it; default to u_shaped_strap, the most common current shape. ### Scraping edges Whether the tool has one scraping edge or two, letting it clean in both directions without flipping. A double-edged cleaner lets the same stroke work on the push and pull, which some buyers find faster, though it is a convenience difference rather than a cleaning-power one. [4] Values: single_edge, double_edge. Used as: filter, shown on the card. Data: on the listing, backfill cost medium. Look for it as: Sometimes stated in bullet copy ('double-sided'); otherwise visible only in product images. Keyword match on bullet copy; default to single_edge when unstated. ### Flavor Whether the floss or pick is unflavored or carries a flavoring agent such as mint, cinnamon, or fruit. Flavor is a comfort and compliance factor only; the ADA notes flavoring agents like mint are added purely to make flossing more pleasant and play no role in cleaning effectiveness. [1] Values: unflavored, mint, cinnamon, fruit. Question to ask: Any flavor preference, or unflavored? Used as: filter. Data: on the listing, backfill cost low. Look for it as: Almost always in the title when present ('Mint Waxed Floss', 'Cinnamon Picks'). Title keyword match; default to unflavored when no flavor word appears. ## What you give up - A single slick PTFE strand will not shred on a sharp or tight tooth contact the way twisted nylon can, but it costs more and some buyers feel it grips plaque less than the fuzzier multifilament strand. [2] [1] Board branch: "Smoother glide, less grip and higher cost". - Once gum recession opens a real gap between teeth, a correctly sized interdental brush reaches both tooth sides at once in a way floss only grazes, per the Cochrane evidence the ADA cites; but a brush simply will not pass through a snug, closed contact the way floss does. [1] [2] Board branch: "Better on open gaps, useless on snug contacts". ## Words you will meet - **Embrasure space**. The small triangular gap just under where two teeth touch, classified as Type I (closed by gum), II, or III (open) by dentists. - **Interproximal**. Between two teeth; interproximal cleaning means cleaning the sides of adjacent teeth that face each other. - **Monofilament**. A single solid strand, as opposed to many thin strands twisted together; PTFE floss is monofilament. - **Multifilament**. Many thin filaments twisted or bundled into one strand; most nylon floss is multifilament. - **PTFE**. Polytetrafluoroethylene, a slick plastic coating or fiber that lets monofilament floss glide without fraying. - **Dental tape**. Floss made wider and flatter than regular string floss, for people with more tooth surface between contacts. - **Superfloss**. Floss with a stiffened threading end and a fuzzy, tufted yarn-like section, built to clean under a fixed dental bridge. - **Floss threader**. A small loop or stiff-ended strand used to pull floss behind braces wires, under a bridge, or through other fixed dental work. - **ISO 16409**. The international standard that defines manual interdental brush sizes 0 through 8 by the gap width each one is built to pass through. - **Passage hole diameter**. The widest gap a given interdental brush size can pass through without its wire bending; this measurement is what the ISO size number is based on. - **Gingivitis**. Early, reversible gum inflammation caused by plaque left along the gumline; the main reason dentists recommend daily interdental cleaning. - **Volatile sulfur compounds**. Smelly sulfur-containing gases produced by bacteria living in the coating on the tongue's surface; the main chemical cause of bad breath. - **Plaque**. A soft film of bacteria that builds up on tooth and tongue surfaces between brushings; the main thing floss, brushes, and tongue cleaners remove. - **Dental bridge**. A fixed replacement for one or more missing teeth, anchored to the teeth on either side; floss cannot be dropped straight down through it and must be threaded underneath. - **Braces**. Metal or ceramic brackets bonded to the teeth and connected by a wire, used to move teeth; floss must be threaded behind the wire rather than pulled straight between teeth. ## Where we made a call - Waxed and unwaxed floss clean equally well; wax only changes how easily the strand slides, not plaque removal. (confidence high). Both the ADA's oral health topic page and Wikipedia's dental floss article state this directly, citing the same underlying research consensus. [1] [2] ## References 1. [Dental Floss/Interdental Cleaners](https://www.ada.org/resources/research/science-and-research-institute/oral-health-topics/floss) (standards body). Supports: Floss is usually nylon multifilament or plastic monofilament; FDA classifies it as a Class I device; No difference in effectiveness between waxed and unwaxed floss; flavoring is added purely for comfort; Interdental brushes are small sized brushes; implant-safe versions use coated wire to avoid scratching or shock; A 2019 Cochrane review found interdental brushes may be more effective than floss at reducing plaque/gingivitis. 2. [Dental floss](https://en.wikipedia.org/wiki/Dental_floss) (primer). Supports: Defines waxed, unwaxed, dental tape, superfloss/tufted floss, floss threader, and floss pick formats; Embrasure space Types I, II, III classify how much gum fills the gap and which interdental tool fits each; Floss picks come in Y-shaped and F-shaped angles; continuous floss holders are reusable, molded picks are disposable; Floss holders are recommended where spacing or gag reflexes make finger-held flossing difficult; History: silk floss (1882) gave way to nylon (developed by Charles C. Bass) for better abrasion resistance. 3. [Toothbrush (Interdental brush section)](https://en.wikipedia.org/wiki/Toothbrush) (standards body). Supports: Interdental brush sizing is standardized in ISO 16409, numbered 0 (small passage) to 8 (large passage); Brush color and wire diameter are not standardized and differ between producers. 4. [Tongue cleaner](https://en.wikipedia.org/wiki/Tongue_cleaner) (primer). Supports: Materials include plastic, metal, copper, and historically wood, ivory, and tortoiseshell; Ayurvedic tradition used copper, silver, gold, tin, or brass scrapers; plastic scrapers are common today; Shapes include plastic or metal straps, bristled rake-style heads, and circular handled devices; Tongue cleaning targets the bacterial coating linked to volatile sulfur compounds and halitosis. 5. [TePe Interdental Brushes (Original, Angle, Extra Soft product lines)](https://www.tepe.com/global/products/interdental-brushes/original/) (spec sheet). Supports: Original line has a straight brush head and short handle, across nine ISO sizes from 0.4-1.5mm; Angle is a distinct named product line/model from Original, built around its own handle shape; Extra Soft is a distinct named filament-texture line from Original, confirmed in the site's own product variation data.