Why Flossing Matters for Your Oral Health
- Marc Lazare
- Jul 16
- 3 min read
Updated: Sep 1
Why Flossing Matters for Your Oral Health
Flossing plays a crucial role in your oral health by reaching the tight spaces between your teeth and along the gumline where toothbrush bristles can't access. These areas are prone to harboring plaque and food debris, which, if left undisturbed, can lead to decay, gum inflammation, and more serious dental problems. Flossing daily helps disrupt this buildup and is essential for a comprehensive at-home oral hygiene routine.
What Does Flossing Do That Brushing Can’t?
While brushing removes plaque and bacteria from the surfaces of your teeth, it cannot adequately clean between them. Flossing removes the buildup in those hard-to-reach places—where most cavities and gum disease begin. Without flossing, nearly 35% of your tooth surfaces are left uncleaned, increasing your risk for dental issues no matter how well you brush.
The Role of Plaque and Tartar in Gum Disease
Plaque is a soft, sticky film of bacteria that forms on your teeth throughout the day. If it’s not removed by brushing and flossing, it hardens into tartar—a substance that can only be removed by professional dental cleaning. Tartar buildup along the gumline irritates your gums, leading to gingivitis (early gum disease) and, if untreated, periodontitis, which can result in tooth loss. Daily flossing is your first defense against this dangerous cycle. Learn more about Gum Disease .
Key Benefits of Flossing
Preventing Cavities and Tooth Decay
By clearing out trapped food and bacteria between teeth, flossing significantly reduces your risk of cavities in those hard-to-reach places.
Reducing the Risk of Gum Disease
Flossing regularly keeps gum tissue healthy by preventing plaque-induced inflammation, one of the earliest signs of gum disease.
Freshening Breath
Bad breath often starts between your teeth. Removing trapped food particles prevents bacteria buildup, keeping your breath fresher.
Supporting Overall Health
Poor gum health is linked to conditions such as heart disease and diabetes. Maintaining a clean mouth supports your immune system and reduces inflammation throughout the body.
Saving on Future Dental Costs
Preventing decay and gum disease can help you avoid costly treatments like root canals, dental implants, or bridges in the future.

What Happens If You Don’t Floss?
Common Dental Problems from Skipping Flossing
Neglecting flossing allows plaque to accumulate between your teeth and along the gumline, leading to gingivitis, decay, and even tooth loss over time.
How Quickly Can Issues Develop?
Within just a few days, plaque can begin hardening into tartar. In a few weeks, early gum inflammation may start to set in, often without pain—making it easy to ignore until damage has already begun.
How to Floss Correctly
Step-by-Step Flossing Technique
Use 18–24 inches of floss and wind most around each middle finger.
Gently glide the floss between two teeth.
Curve it into a “C” shape around the tooth and slide it under the gumline.
Move the floss up and down gently.
Use a clean section of floss for each tooth.
Common Mistakes to Avoid
Avoid snapping the floss, skipping hard-to-reach areas, or flossing too aggressively. These habits can harm gum tissue rather than help it.
Alternatives to Traditional Flossing
Interdental Brushes, Water Flossers, and Picks
If string floss isn’t your favorite tool, consider alternatives. Water flossers are especially helpful for people with braces or implants.
Choosing the Right Option for You
Your dentist can recommend the best method based on your dental structure, dexterity, and oral health needs. Ask about options during your next Checkup
Building a Consistent Flossing Habit
Tips for Making Flossing Easier
Start small—floss once a day at the same time to build routine. Keep floss visible near your toothbrush or set a reminder on your phone.
Overcoming Challenges and Discomfort
If you experience bleeding or soreness, don’t stop. It’s usually a sign your gums need more attention, not less. If it persists, schedule a professional cleaning. Book a Teeth Cleaning and Checkup
Flossing and Your Dental Care Routine
When to Floss: Before or After Brushing?
While the order isn’t critical, flossing before brushing helps remove debris that your toothbrush can then clear away more effectively.
How Often Should You Floss?
The American Dental Association recommends flossing once a day to maintain gum and tooth health.
FAQs About Flossing
Is flossing really necessary if I brush well?
Yes. Brushing only cleans about 60% of the tooth’s surface. Flossing covers the rest.
How often should I floss my teeth?
At least once daily, ideally before bed.
What happens if I don’t floss?
You increase your risk of plaque buildup, cavities, gum disease, and even tooth loss.
Are there alternatives to using traditional floss?
Yes—water flossers, floss picks, and interdental brushes can be just as effective when used correctly. Explore more options with Preventive Dentistry