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Close-up of teeth and gums, showing an enlarged view of an inflamed, reddened area of gum tissue and a scale in micrometres, symbolising periodontitis, an inflammatory condition of the gum tissueClose-up of teeth and gums, showing an enlarged view of an inflamed, reddened area of gum tissue and a scale in micrometres, symbolising periodontitis, an inflammatory condition of the gum tissue

Bacterial inflammation : Periodontitis

From gingivitis to periodontitis  

Bioniq® for healthy gums
Updated on 21/05/26Find out more
Editorially reviewed
Scientifically reviewed

A periodontal disease – also known as periodontitis – is a bacterial condition. Unlike gingivitis, it affects not only the gums but also the supporting structures of the teeth. In the worst case, it can lead to individual teeth falling out.

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Bioniq Repair toothpaste with gum protection, in blue and white packaging and a tube, both featuring a pink plus sign.
  • Improves gum health
  • Suitable for periodontitis
  • Smooth, strong, and healthy teeth

Inflammation : Periodontitis resulting from gum inflammation

A woman is brushing her teeth in the bathroom; there is reddish foam in the sink, indicating bleeding gums – a sign of periodontitis, a bacterial infection of the gum tissue

Gum inflammation – known as gingivitis – is not uncommon and affects almost every adult at least once in their lifetime. bleeding gums and bad breath. 

Gingivitis is usually harmless and heals quickly with improved dental and oral hygiene. However, if it persists, it can gradually develop into periodontitis. In periodontitis, the bacteria spread from the gums to the tooth socket. The inflammation spreads and affects the entire periodontium. 

Gum pockets as a breeding ground for bacteria

At the point where the tooth meets the gum, there are naturally small gum pockets that are only a few millimetres deep. As the inflammation progresses, these gum pockets can become larger.

This causes the gums to pull away from the tooth in patches, creating a deeper pocket. These pockets are the perfect breeding ground for bacteria, as they can multiply there almost undisturbed. Toothbrushes and dental floss cannot reach these gum pockets.  

Food particles, which the bacteria feed on, also get trapped in the pockets, providing them with ideal living conditions. The bacteria then penetrate deeper and deeper into the periodontium. 

Bone loss and tooth loss

Eventually, the bacteria can reach, attack and damage the jawbone and cementum.  

In addition, the body responds to the infection with various inflammatory and immune responses, which serve to fight off the bacteria but also attack the body’s own tissues and lead to bone loss.  

The result is that the teeth can no longer be held in place, and they may fall out. 

  • Key facts: 

    • Gum pockets deepen, creating a sheltered environment for bacteria 
    • Bacteria multiply unchecked and penetrate deeper into the periodontium 
    • Bone loss caused by bacterial infection and the body’s own immune response can lead to tooth loss 

Causes : Causes and risk factors for periodontitis

Apart from genetic factors and other underlying systemic conditions (such as diabetes), the most common cause of gum disease is poor oral hygiene, which leads to an excessive build-up of bacteria in the mouth. Periodontitis is usually preceded by gingivitis. 

Risk factors you can influence – here’s what you can do:

  • Poor oral hygiene: Brush your teeth thoroughly twice a day to remove plaque and food debris – this will also help prevent tooth decay. 
  • Smoking: 70 per cent of people who suffer from periodontitis are regular smokers. The reason: nicotine impairs blood circulation, which means the body is only able to fight gum infections to a limited extent. 
  • Tartar: If necessary, have your dentist remove any tartar. This forms when dental plaque ‘hardens’. This creates small grooves in which bacteria can easily become trapped. 
  • Contagion: It is possible to catch periodontitis. You should therefore avoid sharing your toothbrush and not eat with the same cutlery as your partner or child.  

Risk factors beyond our control:

  • Genetic predisposition: Periodontitis often runs in families. 
  • Hormonal fluctuations: During pregnancy and puberty, the risk of bacterial infections in the mouth increases. 
  • Underlying conditions: Certain medical conditions can also increase the risk of periodontitis. Diabetes mellitus reduces blood flow, which has a negative effect on the body’s defences. In people with HIV, the immune system is weakened and is less able to respond to infections. 

Treatment : Periodontitis – treatment at the dentist

The patient is sitting in the dentist’s chair; the dentist is talking to him; in the background, a dental X-ray can be seen on a monitor, symbolising the treatment of periodontitis, a bacterial infection of the gums

Diagnosis comes before treatment. Your dentist can first use the Periodontal Screening Index (PSI) are X-rays of the jaw taken to identify any bone loss. The treatment plan can then be drawn up based on this information. 

When treatingthere are depending on the severity of the condition:  

  • of therapy basic course.  
  • may further steps be taken. 
  • Primary aims of periodontitis treatment are to limit bacterial infection and thereby halt inflammation of the gums and periodontal tissues, whilst preserving the tissue. 

Basic treatment for periodontitis

First, the teeth and gum pockets need to be cleaned and plaque removed. To do this, the dentist or a member of the trained practice staff – often a dental hygienist – will first carry out a basic treatment:  

In what’s known as closed curettage, a local anaesthetic is usually needed. The dentist or dental hygienist then removes the plaque from the necks of the teeth and the gums, either manually or using mechanical instruments (e.g. ultrasonic).  

In some cases, a laser may also be used. There are different systems that remove affected tissue or have an antibacterial effect. Antibiotics may also be needed. 

This basic treatment is often enough to stop the infection progressing and reduce symptoms. If periodontitis has been diagnosed, short, regular recall appointments (around every 3 months) are important.

Surgical treatment for periodontitis

If the periodontitis is very aggressive or advanced, or if the inflammation could not be fully stopped with closed periodontal treatment, open treatment in the form of surgery is needed.

First, particularly deep gum pockets are gently opened so that bacteria can be tackled directly and diseased tissue can be identified and removed. The gum can then be placed back against the tooth and secured with surgical stitches, ideally helping to reduce the build-up of bacteria in the future.

If the tooth-supporting structures are already affected and the stability of the teeth is at risk, a tissue graft may be needed. The tissue is either taken from the mucous membrane on the palate, or sliding flaps from healthy gum tissue are used.

If the bone has been affected, it can be replaced with the patient’s own bone tissue or other bone replacement materials.

  • There are now many promising treatment methods that can be used depending on the severity of the periodontitis. To achieve long-term success after treatment by the dentist, the patient’s cooperation is essential.

    That’s because only thorough oral hygiene and dental care can prevent the condition from returning.

Prevention : Preventing periodontitis

A woman in the bathroom is holding a toothbrush and brushing her teeth; she is wearing a white bathrobe, symbolising optimal oral hygiene for periodontitis, a bacterial infection of the gums

To help avoid the need for periodontal treatment or surgery in the first place, the following preventive measures can help:

  • Regular and thorough dental care (brushing your teeth morning and evening, flossing/interdental brushes, mouthwash).
  • A healthy diet and avoiding sugary drinks throughout the day.
  • Attending six-monthly preventive check-ups at the dentist.
  • Regular professional tooth cleaning.
  • Reducing nicotine use or stopping smoking.
  • If periodontitis has been diagnosed: regular appointments for supportive periodontal therapy (SPT).

Bioniq® Repair Toothpaste Plus Gum Protection

Toothpaste containing 20% biomimetic enamel (hydroxyapatite/HAP) for daily oral care and healthy gums

Bioniq Repair toothpaste with gum protection, in blue and white packaging and a tube, both featuring a pink plus sign.
  • Improves gum health
  • Suitable for periodontitis
  • Smooth, strong, and healthy teeth

Health risks : Complications associated with periodontitis

If periodontitis is left untreated, it can lead not only to tooth loss but also to other serious complications:  

  • a link between periodontitis and cardiovascular disease, as the bacteria can travel through the bloodstream to the coronary arteries.  
  • also affected by these pathogens, which may, in some cases, lead to pneumonia. 
  • Regular checks are important:  

    Consistent dental treatment and regular follow-up care can minimise these risks 

Bioniq® : Dental care suitable for periodontitis

Bioniq® Repair Toothpaste Plus Gum Protection

Toothpaste containing 20% biomimetic enamel (hydroxyapatite/HAP) for daily oral care and healthy gums

Bioniq Repair toothpaste with gum protection, in blue and white packaging and a tube, both featuring a pink plus sign.
  • Improves gum health
  • Suitable for periodontitis
  • Smooth, strong, and healthy teeth

Knowledge : Other topics

  • A woman looks at herself in the bathroom mirror and points to her gums; a toothbrush and soap lie on the edge of the washbasin, symbolising gum inflammation

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    Bleeding gums – what causes it?

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    Healthy gums do not bleed. Find out what causes bleeding gums, when you should see a dentist, and how you can prevent it with the right care.

  • A person in a white T-shirt is holding their cheek with their hand – a typical gesture when one’s teeth are sensitive.

    Sensitive teeth – causes and what really helps

    Verified by Dr. Joachim Enax and Karoline Bauch

    Hot coffee, cold ice cream, sour apples – and suddenly that sharp pain. Find out why teeth are sensitive, what causes it, and what you can do to specifically reduce this sensitivity.

Dr. Joachim Enax

Senior Scientist Oral Care

Dr. Joachim Enax is an expert in biomimetic oral care and oral health. As a PhD chemist, he is an experienced scientist in the research and development of innovative active ingredients for oral care and in promoting dental health. He is the author of numerous scientific publications in the field of teeth and oral care.

Scientifically reviewed
Verified on 21/05/26

Karoline Bauch

Corporate Communications Officer

Karoline Bauch is an expert in science communication specialising in the Oral Care sector and acts as the editorial contact for all matters relating to dentistry, oral health and prevention.

Editorially reviewed
Verified on 22/04/26