String Floss vs Interdental Brushes vs Water Flossers: Which Should You Use?
Brushing cleans about 60 percent of your tooth surfaces. The remaining area, the tight spaces between teeth, needs a different tool. Many patients in Gurugram ask us which is better: string floss, interdental brushes, or a water flosser. The honest answer is that all three work, but the right choice depends on your gum spacing, dexterity, and daily habits.
Why Cleaning Between Teeth Matters
Plaque builds up between teeth even if you brush twice a day. Left undisturbed, it hardens into tartar and leads to gum inflammation, bad breath, and cavities between teeth that are hard to spot early. Daily interdental cleaning is one of the simplest ways to prevent these problems and keep your gums healthy.
String Floss
Traditional floss is thin, inexpensive, and effective when teeth are close together with little to no gum recession.
How to Floss Correctly
- Break off about 45 cm of floss and wind most of it around your middle fingers, leaving 3 to 4 cm to work with.
- Guide the floss gently between two teeth using a slight sawing motion. Do not snap it down into the gum.
- Curve the floss into a C shape against one tooth and slide it slightly under the gumline, then move it up and down 2 to 3 times.
- Repeat on the neighbouring tooth before moving to the next gap.
- Use a clean section of floss for each space to avoid moving bacteria around.
String floss can be fiddly for people with arthritis, braces, or bridges, where interdental brushes or floss picks may be easier.
Interdental Brushes
These small brushes come in different sizes to match the size of your gaps. They are particularly useful if you have slightly larger gaps, gum recession, or are prone to food getting stuck between teeth.
How to Use Interdental Brushes
- Choose a size that fits snugly but is not forced into the gap. It should feel slightly resistant, not tight or loose.
- Insert the brush gently from the front, parallel to the gumline, and move it back and forth 2 to 3 times.
- Move to the next gap, rinsing the brush under water between uses.
- Replace the brush once the bristles look bent or worn, usually after a few uses.
Gap sizes often vary across the mouth, so you may need two or three brush sizes rather than one.
Water Flossers
A water flosser uses a thin, pressurised stream of water to flush out debris and plaque from between teeth and along the gumline. It is a good option for people with braces, implants, bridges, or those who find string floss difficult to manage.
How to Use a Water Flosser
- Fill the reservoir with lukewarm water and start on the lowest pressure setting if you are new to it.
- Lean over the sink, place the tip in your mouth, and close your lips slightly to avoid splashing.
- Aim the stream at a 90 degree angle to your gumline and trace it along each gap for a few seconds.
- Work systematically around your mouth, upper and lower, inside and outside surfaces.
- Increase pressure gradually over a few days as your gums get used to it.
Comparing the Three Options
| Tool | Best for | Things to keep in mind |
|---|---|---|
| String floss | Tight natural tooth contacts | Needs practice and good finger dexterity |
| Interdental brushes | Wider gaps, recession, bridges | Requires correct size per gap |
| Water flosser | Braces, implants, limited hand mobility | Higher upfront cost, needs counter space |
Which One Should You Choose
There is no single correct answer. Some patients combine tools, for example using interdental brushes where gaps are wider and string floss where teeth are closer together. The most important factor is consistency. A technique used correctly every day will always beat an ideal tool used occasionally.
If you are unsure which gaps need which size brush, or whether your gums are healthy enough for vigorous flossing, it helps to have a quick check. At our Sector 48 clinic in Gurugram, we often show patients the exact technique and sizing suited to their mouth during a routine visit.
Common Mistakes to Avoid
- Flossing too hard and snapping the floss into the gum, which can cause small cuts
- Skipping back teeth because they are harder to reach
- Using the same interdental brush size for every gap
- Stopping interdental cleaning because of mild bleeding, instead of continuing gently
- Only cleaning between teeth occasionally rather than daily
Thinking about treatment? General dentistry at Dr Lokesh Yadav
Questions before you book?
Dr Lokesh Yadav · 3rd floor, above Cut and Style Salon, opp. Vega School, Vipul World, Sector 48
Frequently asked questions
Do I still need to floss if I use a water flosser?
For most people, a water flosser alone cleans well, but if you have very tight contacts between teeth, string floss may still remove plaque more thoroughly in those spots. Many patients use a water flosser daily and floss a few times a week.
Why do my gums bleed when I floss or use interdental brushes?
Bleeding usually means there is some gum inflammation from plaque buildup, not that you are injuring the gums. With gentle, consistent cleaning, bleeding typically reduces within one to two weeks. If it continues longer, get your gums checked.
Can interdental brushes damage the gaps between my teeth?
Using the correct size for each gap is important. A brush that is too large can widen the space over time, while one that is too small will not clean effectively. Our team can help you pick the right sizes for different areas of your mouth.
How often should I clean between my teeth?
Once a day is generally enough, ideally at night before bed, so plaque does not sit between your teeth overnight. Brushing alone cannot reach these surfaces, so daily interdental cleaning matters as much as brushing.