GUM HEALTH

Periodontitis: Causes, Symptoms, and Treatments

06-19-2025

Periodontitis is a severe gum infection (known as gum disease or periodontal disease) that causes the reabsorption of the soft tissue and bone around your teeth. Thankfully, periodontitis is preventable with the right oral hygiene routine and regular dental visits. In this article, we discuss causes, symptoms, and treatment for periodontitis, so you can keep your teeth, gums, and mouth healthy.

Key Takeaways

  • Periodontitis is the advanced stage of gum disease that starts with plaque buildup and gingivitis.
  • Periodontitis can be worsened by tobacco use, systemic diseases, hormonal changes, poor nutrition, and some medications.
  • Periodontitis symptoms often include swelling, bleeding, and receding gums, as well as deep pockets between teeth and gums, loose teeth, and persistent bad breath.
  • Left untreated, periodontitis can result in tooth mobility and eventually losing teeth, infection of the periodontal ligaments, and reabsorption of alveolar bone in your jaw.
  • Periodontitis can only be treated by a dentist or periodontist. If you suspect you have a gum infection, visit a dental professional as soon as possible.

What Is Periodontitis?

Periodontitis is a severe gum infection and is considered the advanced stage of gum disease. It starts with gingivitis

Gingivitis is caused by plaque bacteria that builds up on your teeth and gums, leading to red, swollen, tender, and bleeding gums. Without proper oral hygiene and regular dental visits, gingivitis can develop into periodontitis. 

Periodontitis is further broken into three stages: mild periodontitis, moderate periodontitis, and advanced periodontitis. Each is characterized by increasingly worse symptoms (which we’ll discuss in this article). 

Unlike gingivitis, which can be treated at home, periodontitis can only be treated by a dentist or periodontist with specialized tools and training. 

Periodontitis Causes

Gum disease occurs when plaque, a sticky film of bacteria, accumulates and hardens on your teeth. When plaque is left to build up on and around your teeth, an inflammatory reaction occurs, leading to gingivitis and eventually periodontitis. 

That said, there are a few medical and lifestyle factors that increase your chances of developing periodontitis. Let’s take a look. 

Tobacco Use 

Tobacco use of any kind — smoking, chewing, or vaping — is one of the primary causes of all dental problems (not just gingivitis and periodontitis). 

The chemicals in tobacco do all sorts of damage to the soft tissue in your mouth, including reducing blood flow, preventing tissue repair, and hindering your body’s ability to fight infections such as gum disease. 

The best remedy is to quit, so, if you haven’t tried before now, seriously consider giving up the habit.

Poor Nutrition

A diet high in sweet, starchy foods and sugary beverages and lacking in essential nutrients does two things that promote periodontitis:  

  1. It weakens the immune system and increases the risk of infection 

  2. It creates an environment in your mouth that supercharges the growth of bacteria that can cause gum disease 

 If you’re unsure what to eat — and what not to eat — for better oral health, continue reading to learn what constitutes a healthy diet.

Hormonal Changes

Hormonal changes can make it more likely that you’ll develop gum disease that leads to periodontitis.  Both men and women are susceptible to these hormonal changes, but women are at greater risk because of the significant ups and downs that accompany puberty, menstruation, pregnancy, and menopause.

Certain Illnesses

Certain illnesses can reduce or even eliminate your body’s ability to fight off gum disease in all its forms (thereby accelerating the process). 

If you suffer from diabetes, HIV, or rheumatoid arthritis, talk to your dentist or primary care physician about how you can prevent plaque buildup and gum infection. 

Medications 

Some medications can cause dry mouth and other side effects that make it more likely you’ll develop a gum infection. 

Talk to your primary care physician or specialist about trying different medications to find one that doesn’t lead to periodontal disease.

Periodontitis Symptoms

Bleeding Gums 

Some periodontitis symptoms are similar to gingivitis symptoms but are typically more severe. 

With gingivitis, your gums may bleed during brushing or flossing, but the bleeding usually stops quickly afterward. With periodontitis, your gums may bleed spontaneously—even without brushing or flossing—and the bleeding usually doesn’t stop easily or respond well to home treatments. 

Also, with periodontitis, you might have tooth mobility and reabsorption of soft tissues, alveolar bone, and periodontal ligament. 

Inflammation and Swelling 

Periodontal disease is a serious infection of the soft tissue in your mouth. 

With periodontitis, just like with any infection, your body’s natural defense is to send blood to the area to clean out the bacteria. This can lead to extreme, painful inflammation and swelling — especially if your body can’t fight off the infection on its own. 

Bad Breath 

When the soft tissue in your mouth gets damaged, the bacteria that naturally live there can begin to release a foul-smelling gas that gives you both a bad taste in your mouth as well as bad breath. 

Receding Gums 

Infection from gum disease can destroy the gum tissue and bone that supports your teeth. This can cause your gums to pull away — recede — from your teeth and reveal parts of your jaw that were never meant to be exposed to the elements (e.g., food, liquid, air). 

Loose Teeth 

Receding gums (and the damage underlying them) often leads to loose teeth that can affect the way you eat, may fall out on their own, or might need to be removed by a professional. 

Periodontitis Treatment and Prevention

Professional Treatment

If you develop periodontitis, visit a dentist or periodontist for a professional treatment that may include:  

  • Scaling 

  • Root planing 

  • Local antibiotics 

  • Bone grafting 

  • Tissue grafting 

  • Flap surgery 

  • Tooth extraction 

 Even with these treatments, periodontitis can still come back! You must maintain a good oral hygiene routine to prevent its return. Effective Oral Hygiene A good oral hygiene routine is the best defense against periodontitis:  

  • Visiting a dentist at least twice a year for a professional cleaning and oral health checkup 

  • Brush at least twice a day with an electric toothbrush and a stannous fluoride toothpaste 

  • Floss at least once a day 

  • Rinse with an antibacterial mouthwash 

 If you follow this oral hygiene routine, you’ll be better equipped to remove the plaque bacteria that leads to gingivitis and periodontal disease.

Stop Smoking

We touched on the negative effects that smoking, chewing, and vaping can have on your oral health earlier in this article.

Quitting is the best approach. If you’re having trouble with a smoking problem, talk to your dentist or primary care physician. They can provide guidance and support for kicking the habit.

Eat a Healthy Diet

To maintain a healthy diet, limit your intake of sweet, starchy foods and sugary beverages. Eat a good balance of the following foods:  

  • Fruits 

  • Vegetables 

  • Whole grains 

  • Lean protein 

  • Healthy fats 

 For more guidance on maintaining good nutrition, talk to your primary care physician.

Effective Oral Hygiene Starts with Oral-B 

Keep your gums healthy with the Oral-B iO Electric Toothbrush Series. This series is designed to remove 100% more plaque than a manual toothbrush, thanks to micro-vibrating bristles, dentist-inspired round brush heads, and the smart pressure sensor that delivers the exact amount of brushing power for a superior clean while protecting your gums. It also features sensitive and extra sensitive modes with less bristle rotations for a gentler clean. 

Add flossing, rinsing daily, and regular visits to the dentist, and you have the perfect routine to help you keep your gums healthy!

Sources 

FAQs

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About Our Medical Reviewers

Francesca Dusio is an Italian registered dentist with a strong international background and a passion for integrating business with dentistry working in the Oral Care industry. She graduated in Dentistry from the University of Turin, Italy and holds a Master of Science in Dental Science as well as a certificate in Pediatric Dentistry from Complutense University of Madrid, Spain. Currently, Francesca is pursuing a Master’s in Orthodontics to further enhance her expertise in dentistry. Francesca has developed a diverse skill set through her work as a Professional & Scientific Relations Manager at Procter & Gamble, where she focuses on scientific communication and training for sales teams. She has managed a team of Clinical Experts and organized various educational conferences, built strong relationships with universities and scientific societies. She is dedicated to continuous learning and is passionate about improving oral health through research and education. Francesca has been partnering with the team at Oral-B by fact-checking and reviewing our blogs on dental health. You can find a list of the blogs Francesca has approved below:

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Dr Francesca
This blog has been reviewed and approved by Francesca Dusio, an Italian registered Dentist with a strong international background.
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