In short: Healthy gums do not bleed. Blood when brushing is a sign of inflammation — usually gingivitis, which heals completely. If it persists, it can develop into periodontitis, where bone is lost, and that loss cannot be reversed. The difference is decided in months, not years: have persistent bleeding examined promptly.
Many people take mild bleeding as a sign of brushing too hard. That is the most common and most consequential misunderstanding in oral hygiene. Healthy gums tolerate a toothbrush without any problem.
Gingivitis or periodontitis — the decisive difference
With gingivitis only the gum is inflamed. It is red, swollen and bleeds easily. Remove the cause — usually bacterial plaque — and it heals completely, without consequences.
With periodontitis the inflammation has spread deeper and is attacking the jawbone that holds the teeth. Pockets form in which bacteria survive where no brush reaches. Lost bone does not grow back. From that point treatment aims at stopping progression rather than cure — which is well achievable, but requires permanent follow-up care.
The signs that matter
- Blood when brushing or flossing, for more than two weeks
- Gums receding — teeth look longer, tooth necks become sensitive
- Persistent bad breath or an unpleasant taste
- Teeth that feel loose or change position
- Pus at the gum margin
What makes the disease treacherous is that it usually does not hurt. It is therefore often noticed only when teeth migrate or loosen — that is, late.
Who should pay particular attention
Smoking is the strongest modifiable risk factor and it masks the warning sign at the same time: smokers' gums bleed less even while the disease progresses. Other risks are poorly controlled diabetes, family predisposition, pregnancy and hormonal changes, and certain medications. Conversely, untreated periodontitis affects the whole body: the connection with diabetes and cardiovascular disease is well documented.
How it is treated
It starts with measurement: pocket depth is recorded at every tooth, with X-ray imaging of the bone level. That gives the severity. Treatment begins with thorough cleaning of all tooth and root surfaces, with local anaesthetic for deeper pockets. In advanced cases a surgical step follows. What decides long-term success is the follow-up care at fixed intervals — periodontitis is a chronic condition that is controlled, not cured.
For patients with statutory insurance in Germany, systematic periodontitis treatment including structured follow-up is covered when the findings justify it. The most important sentence on the subject is a temporal one: the earlier you come, the more is still reversible.
Frequently asked questions
Can gums grow back?
Inflamed gums calm down and the swelling subsides, which can make teeth look even longer than before. Receded gum tissue and lost bone do not regenerate on their own; in certain cases surgical procedures are possible.
Does German insurance pay for periodontitis treatment?
Where the findings justify it, statutory funds cover systematic treatment including structured follow-up care. Professional cleaning is generally not included.
Does a special toothpaste or mouthwash help?
They can support, but they remove neither hard deposits nor bacteria from deep pockets. Without mechanical cleaning the course of the disease does not change.
Is periodontitis contagious?
The bacteria involved can be transmitted between partners. Whether disease develops depends on immune status, oral hygiene and risk factors. Where findings exist, having a partner examined is worthwhile.
This article provides general information and does not replace a dental examination. Medically reviewed by Dr. F. J. Rodríguez Ruíz, MSc., dentist at A+ Dental, Düsseldorf-Oberkassel.