If you have gingivitis, you should usually floss once a day, done carefully and consistently, rather than several times throughout the day. Gingivitis develops when plaque builds up along the gum line and between the teeth, so the focus is on removing that plaque effectively every day without irritating the gums further. At The Perio Centre, attention is often placed on these areas because they are where early gum problems tend to begin.
It is very common for people to worry when their gums bleed and assume they should stop flossing. In reality, bleeding is one of the earliest signs of gum disease and leaving plaque in place will often allow the inflammation to continue.
NHS guidance highlights that bleeding during brushing or flossing is a typical symptom of gum disease. At the same time, research from the CDC shows that 42% of adults aged 30 years old and over have periodontitis, while only 31.6% of adults floss daily, which helps to explain why gum disease remains so widespread.
Why Is Once A Day Usually Enough?
When dealing with gingivitis, increasing how often you floss is not usually the answer. Flossing too frequently, especially if done with too much pressure, can irritate already sensitive gum tissue. What matters far more is the quality of your cleaning rather than the quantity.
Plaque forms continuously throughout the day. If it is not removed within a 24 hour period, it can start to trigger inflammation in the gums. This is why a single thorough clean between the teeth each day is generally enough to disrupt plaque and support gum health. The Perio Centre emphasise daily interdental cleaning as part of controlling and reversing early gum disease.
Flossing too frequently, especially if done with too much pressure, can irritate already sensitive gum tissue.
Is It Better To Floss In The Morning Or At Night?
For most people, flossing in the evening is the most effective option. This allows you to remove the accumulation of plaque and trapped food from the day before going to sleep. Overnight, saliva flow decreases, which can make it easier for bacteria to multiply, so going to bed with clean teeth and gums is particularly important.
The NHS also advises flossing before brushing your teeth. Doing this first means fluoride from your toothpaste can reach more areas, including between the teeth.
What If Your Gums Bleed When You Floss?
Bleeding gums can feel alarming, but in the early stages of gingivitis it is usually a sign of inflammation rather than damage caused by flossing itself. When plaque is removed regularly, the gums often begin to heal and the bleeding gradually reduces.
The way you floss makes a significant difference. It should be gentle and controlled, not rushed or forceful. Carefully guide the floss between the teeth, curve it around each tooth and clean slightly below the gum line without pressing too hard. Over time, as the gums become healthier, this process should feel more comfortable.
It is also worth noting that if flossing has not been part of your routine before, some initial bleeding is quite common. With consistent daily care, many people notice improvement within a couple of weeks.
When Should You Seek Professional Help?
If your gums continue to bleed after a couple of weeks of daily flossing or if you notice ongoing swelling, discomfort or changes in how your gums look, it is sensible to seek professional advice. Gingivitis can usually be reversed at an early stage, but if ignored it may progress into more advanced gum disease.
A professional assessment can help identify areas you may be missing and ensure your technique is effective. In many cases, a combination of professional cleaning and a tailored home care routine is enough to bring the gums back to good health.
A professional assessment can help identify areas you may be missing and ensure your technique is effective.
Dr Simon Stern is a registered Specialist Periodontist at The Perio Centre. His qualifications include BDS MJDF RCS (Eng) MClinDent MPerio RCS (Ed). He lectures at both national and international conferences, and has published papers in several well-respected journals.
