A guide to identifying healthy gums and understanding the stages of gum disease progression.
Contents
Stage 2: Gingivitis (Early Gum Disease)
Stage 4: Moderate Periodontitis
Stage 5: Advanced Periodontitis
Gum disease is one of the most common oral health conditions, yet many people don’t realise they have it until it has progressed to a point where it’s causing a problem. The good news is that early-stage gum disease is often reversible with good oral hygiene and professional dental care. The bad news is that advanced periodontitis is not.
Understanding the stages of gum disease can help you spot the warning signs early and protect your long-term oral health.
Gum disease, also known as periodontal disease, is an infection and inflammation of the tissues that support your teeth. It is primarily caused by plaque – a sticky film of bacteria that forms on the teeth continually and feeds on sugars from the food and drink we eat. As this builds up, the bacteria irritate the gums, damages tooth enamel and eventually hardens into a substance called “tartar”. Whilst plaque can be removed through brushing and flossing, tartar cannot, and the rough surface of tartar provides a perfect spot for more bacteria to accumulate.
As the circle of plaque → tartar continues, the gums become inflamed, swell, bleed, and eventually recede away from the teeth. This then leads to enamel erosion, tooth decay and worsening gum disease. Taking control of your oral health at the earliest possible stage is key to resolving gum disease problems before they become a problem you cannot fix.
What Healthy Gums Look Like
Healthy gums should be:
Maintaining healthy gums requires a good oral hygiene routine including at least twice daily brushing, flossing and regular dental check-ups.
Gingivitis is the earliest stage of gum disease and is often caused by plaque build-up along the gumline. The teeth remain firmly in place in the gums and there is no sign of any gum recession.
At this stage, there is no damage to the bone and connective tissues supporting the teeth, making gingivitis reversible with improved oral hygiene and professional cleaning with a dental hygienist.
Common Symptoms of Gingivitis
If gingivitis is left untreated, it can progress to stage 3: periodontitis.
At this stage, bacteria begins to spread below the gumline, causing the gums to pull away from the teeth and form pockets where more bacteria can accumulate. You will most likely see this in a mirror as your teeth will look longer and you may find they are more sensitive as the nerves become exposed.
Unlike gingivitis, some damage caused by periodontitis cannot be fully reversed, but it can be managed and slowed with professional treatment and implementation of a good oral hygiene routine to prevent further damage.
Common Symptoms of Early Periodontis
As gum disease progresses, the inflammation spreads deeper into the supporting structures of the teeth. this is called moderate periodontitis, where the bone loss becomes more significant. Prompt treatment is essential to prevent further deterioration and stop teeth from coming loose and falling out.
Common Symptoms of Moderate Periodontitis
This is the most severe stage of gum disease and at this point you may find you are losing teeth or struggling to eat through teeth being loose. There will be substantial destruction of the bone and tissues. Advanced periodontitis usually requires specialist periodontal treatment and, in some cases, surgical intervention.
Common Symptoms of Advanced Periodontitis
Prevention is always easier than treatment. Maintaining healthy gums goes hand in hand with a solid dental hygiene routine that includes:
Please ensure you seek dental advice quickly if you notice bleeding or swollen gums, as dental visits can help identify early gum disease before it progresses to more serious stages.
Some Gum Disease Stats
Source: WHO: Oral health fact sheet
Source: National Library of Medicine: Prevalence of periodontal disease, its association with systemic diseases and prevention (2017)
Source: National Library of Medicine: Global, Regional and National Burden of Edentulism and Periodontal Diseases from 1990 to 2021: Analysis of Risk Factors and Prediction of Trends in 2050 (2025)