Gum Disease (Periodontal Disease)

What Is Gum Disease?

The process begins when bacterial plaque — a sticky, colourless film — accumulates on your teeth along and below the gumline. When plaque is not effectively removed through daily brushing and interdental cleaning, the bacteria within it release toxins that trigger an inflammatory response in the gum tissue. This gingival inflammation is your body's attempt to fight the bacterial invasion.

In its early stage (gingivitis), inflammation is confined to the gums themselves. The gums become red, swollen, and may bleed during brushing. At this point, no permanent damage has occurred to the supporting structures, and the condition can be fully reversed with professional treatment and improved oral hygiene.

When gingivitis is left untreated, it can progress to periodontitis. In this more advanced stage, inflammation extends beyond the gums to affect the periodontal ligament and alveolar bone that anchor your teeth. The body's prolonged inflammatory response, combined with bacterial toxins, leads to the destruction of these supporting structures. Periodontal pockets form between the teeth and gums, creating spaces that harbour even more bacteria and accelerate the cycle of tissue destruction.

Periodontal disease matters not only for your teeth but for your broader health. Research increasingly recognises links between chronic oral inflammation and systemic conditions, making the management of gum disease an important part of overall wellbeing. In the UK, approximately 9% of adults have severe gum disease, while 93% of dentate adults show at least one sign of periodontal problems.

How Common Is Gum Disease in the UK?

Periodontal disease is one of the most prevalent oral health conditions in the United Kingdom. Understanding the scale of the problem highlights why regular dental check-ups and early intervention are so important.

The risk of developing signs of gum disease increases with age, with older adults more likely to have deeper periodontal pockets and greater attachment loss. Smoking remains one of the strongest modifiable risk factors, significantly increasing both the likelihood and severity of periodontal problems.

Diabetes, socioeconomic deprivation, and infrequent dental attendance also contribute to higher rates of bleeding gums and periodontal breakdown. These figures demonstrate that gum disease is not a rare condition — it affects the majority of the adult population to some degree, reinforcing the importance of prevention and early detection.

Types of Gum Disease

Gum disease exists on a spectrum, broadly divided into two main types based on severity and the structures affected.

Gingivitis (Early Stage)

Gingivitis is the mildest form of periodontal disease and affects only the gingiva — the soft gum tissue immediately surrounding the teeth. It is characterised by:

• Inflammation confined to the gums without involvement of the underlying bone
• Gums that appear red, swollen, and bleed easily during brushing or flossing
• No bone loss or permanent damage to supporting structures
• Fully reversible with professional cleaning and improved daily oral hygiene

Periodontitis (Advanced Stage)

Periodontitis develops when gingivitis is left untreated and the inflammatory process extends deeper into the periodontal structures. It is characterised by:

• Inflammation spreading to the periodontal ligament, cementum, and alveolar bone
• Progressive destruction of bone and connective tissue supporting the teeth
• Formation of gum pockets — deepened spaces between the teeth and gums that trap bacteria
• Irreversible bone loss, though the condition can be managed and stabilised with treatment
• Can lead to tooth loosening, shifting, and eventual tooth loss if left untreated

What Causes Gum Disease?

The primary cause of gum disease is the accumulation of bacterial plaque on the teeth. Plaque is a sticky, colourless biofilm that forms continuously on tooth surfaces. When it is not removed through regular brushing and interdental cleaning, the bacteria within the oral biofilm release toxins that irritate and inflame the gum tissue.

If plaque remains undisturbed, it mineralises into tartar (calculus) — a hard deposit that adheres firmly to the tooth surface and can only be removed professionally. Tartar creates a rough surface that encourages further plaque accumulation, accelerating the inflammatory cycle and increasing the risk of gum infection.

While plaque is the primary trigger, several factors increase your susceptibility to periodontal disease or influence how quickly it progresses:

• Poor oral hygiene — inadequate brushing and failure to clean between teeth allows plaque to accumulate and harden
• Smoking and tobacco use — significantly weakens the immune response in the gums, impairs blood flow, and reduces healing capacity, making smokers far more likely to develop severe periodontal disease
• Diabetes — uncontrolled blood sugar levels increase susceptibility to infections, including gum infection, and impair the body's ability to heal
• Hormonal changes — fluctuations during pregnancy, puberty, and menopause can make gums more sensitive and susceptible to gingival inflammation
• Medications causing dry mouth — reduced saliva flow decreases the mouth's natural ability to wash away bacteria and neutralise acids
• Genetic predisposition — some individuals are genetically more susceptible to periodontal breakdown despite good oral hygiene
• Stress — chronic stress can weaken the immune system, reducing the body's ability to fight gum infection
• Poor nutrition and obesity — a diet lacking essential nutrients impairs immune function and tissue repair, while obesity is associated with increased inflammation
• Weakened immune system — conditions such as HIV or treatments like chemotherapy reduce the body's defences against oral bacteria
• Crooked or crowded teeth — misaligned teeth create areas that are difficult to clean effectively, increasing plaque retention

Gum Disease Symptoms

Recognising the signs of gum disease early allows for prompt treatment before irreversible damage occurs. One of the challenges with periodontal disease is that it can progress without causing significant pain, which is why regular dental assessments are essential for early detection.

• Bleeding gums — gums that bleed when brushing, flossing, or eating hard foods are one of the earliest and most common warning signs
• Red, swollen, or tender gums — healthy gums are firm and pale pink. Inflamed gums may appear dusky red, feel puffy, and be tender to touch
• Persistent bad breath (halitosis) — bacteria in periodontal pockets produce odorous compounds that cause chronic bad breath or a persistent unpleasant taste
• Receding gums — gums pulling away from the teeth, making teeth appear longer than normal. This exposes the root surfaces, which may become sensitive
• Loose or shifting teeth — as bone support is lost, teeth may begin to feel mobile or shift position, altering how your bite fits together
• Changes in bite alignment — teeth may drift or tilt as the supporting structures weaken, causing your bite to feel different
• Pus between teeth and gums — discharge of pus from the gum margin or between teeth indicates active infection within the periodontal pocket
• Pain when chewing — discomfort or tenderness when biting down may indicate that supporting structures are compromised
• Gum abscesses — localised collections of pus within the gum tissue, often presenting as painful swellings

Why Treat Gum Disease?

Without appropriate treatment, gum disease follows a progressive course that affects far more than your gums. Understanding the potential consequences of untreated periodontal disease helps explain why early intervention is so valuable.

• Progression from reversible to irreversible damage — gingivitis can be completely reversed, but once it progresses to periodontitis, the bone loss that occurs cannot be recovered naturally
• Gum recession and root exposure — as gums recede, tooth roots become exposed, leading to sensitivity and an increased risk of root decay
• Alveolar bone loss — the bone that supports your teeth is progressively destroyed, reducing the foundation that holds teeth in place
• Tooth mobility and eventual tooth loss — advanced periodontitis is the leading cause of tooth loss in adults, as teeth lose their bony support and become increasingly mobile
• Systemic health associations — research has found that individuals with gum disease have 15% higher odds of developing multiple chronic conditions. Associations have been identified with cardiovascular disease, diabetes complications, and other inflammatory conditions
• Impact on quality of life — difficulty eating, persistent bad breath, tooth loss, and visible gum recession can significantly affect confidence and daily comfort

Early gum disease treatment prevents the cascade of damage that untreated periodontal infection can cause. The sooner treatment begins, the simpler and more predictable it tends to be.

Diagnosis and Assessment

Accurate diagnosis of gum disease requires a thorough clinical assessment. During a dental examination, your dentist will carry out several key evaluations to determine the type, severity, and extent of periodontal involvement.

• Visual examination — assessing the colour, contour, and consistency of the gum tissue for signs of inflammation, recession, or swelling
• Periodontal probing — using a calibrated probe to measure the depth of gum pockets around each tooth, identifying areas of attachment loss
• Bleeding on probing — noting which sites bleed when probed, indicating active gingival inflammation at those locations
• Gum recession measurement — recording how far the gum has receded from its normal position on each tooth
• Tooth mobility assessment — testing whether teeth are loose, indicating loss of bone support
• X-rays — radiographic images to evaluate bone levels around the teeth and identify areas of alveolar bone loss
• Medical history review — identifying risk factors such as diabetes, smoking status, medications, and family history of periodontal disease

Gum Disease Treatment Options

Gum disease treatment depends on the type and severity of the condition. Early-stage gingivitis often responds to simple professional cleaning and improved home care, while more advanced periodontitis requires a structured, phased approach. Our general dentistry team develops personalised periodontal treatment plans based on your clinical assessment.

Professional Cleaning and Oral Hygiene Advice (Gingivitis)

For patients with gingivitis, a professional scale and polish performed by a dental hygienist is typically the first step. This removes plaque and tartar deposits from above and along the gumline, eliminating the bacterial source of inflammation.

• Thorough removal of plaque and calculus from all tooth surfaces
• Personalised oral hygiene instruction covering brushing technique and interdental cleaning
• Usually sufficient to fully reverse gingivitis within a few weeks when combined with consistent home care

Scaling and Root Planing (Periodontitis)

For patients diagnosed with periodontitis, scaling and root planing — also referred to as Professional Mechanical Plaque Removal (PMPR) — provides deeper cleaning to address bacterial deposits both above and below the gumline.

• Deep cleaning of tooth surfaces and root areas beneath the gumline
• Removal of plaque, tartar, and bacterial toxins from periodontal pockets
• Smoothing of root surfaces to discourage bacterial reattachment and support gum healing
• Local anaesthetic used to ensure comfort during the procedure
• Typically completed over two to four appointments to treat the entire mouth systematically

Antibiotic Therapy

Antibiotics may be used as an adjunct to mechanical cleaning in certain cases. They help control bacterial infection but are not a standalone treatment for gum disease.

• Prescribed antimicrobial mouthwashes (such as chlorhexidine) to reduce bacterial load
• Oral antibiotics for acute periodontal infections or abscesses
• Antibiotic gels or microspheres placed directly into gum pockets after scaling for localised treatment

Periodontal Surgery

Surgical intervention is reserved for severe cases of periodontitis that have not responded adequately to non-surgical treatment. Gum surgery aims to access deeper deposits, reduce pocket depths, and regenerate lost tissue where possible.

• Flap surgery — lifting the gums to access and clean deep tartar deposits, then repositioning the tissue to reduce pocket depth
• Pocket reduction surgery — reshaping the bone and gum tissue to eliminate deep pockets where bacteria accumulate
• Bone grafting — placing bone graft material to replace bone lost through periodontitis, supporting tooth stability
• Guided tissue regeneration — using barrier membranes to encourage new bone and connective tissue growth in areas of significant loss
• Gum grafts — transplanting soft tissue to cover exposed root surfaces in areas of significant recession

In cases where advanced bone loss has resulted in tooth loss, dental implants may be considered as a replacement option once the periodontal condition has been stabilised.

Gum Disease Treatment Recovery and Maintenance

Recovery after periodontal treatment varies depending on the type and extent of the procedure. Some mild sensitivity and gum tenderness is expected in the days following scaling and root planing, gradually resolving as the tissues heal.

• Mild sensitivity and tenderness are normal for a few days after deep cleaning
• Healing time depends on the severity of the condition and the type of treatment received
• Regular periodontal maintenance appointments (every 3–4 months) are essential for long-term stability
• Periodontitis requires ongoing management — it can be controlled effectively but not cured
• Your commitment to daily oral hygiene at home is critical to maintaining treatment results

Gum Disease Prevention

Preventing gum disease centres on controlling bacterial plaque through consistent daily care and regular professional maintenance. The following strategies significantly reduce your risk of developing periodontal problems.

• Brush twice daily with fluoride toothpaste — use a soft-bristled or electric toothbrush for at least two minutes, angling bristles towards the gumline
• Clean between teeth daily — use interdental brushes, floss, or a water flosser to remove plaque from areas your toothbrush cannot reach
• Attend regular dental check-ups — frequency depends on your individual risk level, typically every 3 to 24 months as recommended by your dental team
• Book regular professional cleaning — hygienist appointments remove deposits that daily brushing cannot, keeping gums healthy
• Stop smoking — quitting tobacco is one of the most impactful steps you can take to reduce your risk of periodontal disease and improve treatment outcomes
• Manage diabetes and blood sugar — well-controlled blood glucose levels reduce susceptibility to gum infection and support healing
• Maintain a healthy diet — a balanced diet low in sugar supports immune function and reduces the fuel available for harmful oral bacteria
• Stay hydrated — adequate water intake maintains saliva flow, which helps wash away bacteria and neutralise acids in the mouth

Gum Disease and Overall Health

A growing body of research has identified associations between periodontal disease and several systemic health conditions. While these are associations rather than confirmed causal relationships, they highlight the importance of maintaining good periodontal health as part of overall wellbeing.

Studies have found that individuals with gum disease have 15% higher odds of developing multiple chronic conditions. Painful gums have been identified as one of the strongest predictors of multimorbidity, underscoring the potential significance of oral health in broader health outcomes.

• Cardiovascular disease — chronic periodontal inflammation and the bacteria associated with gum infection may contribute to inflammatory processes linked to heart disease
• Diabetes — the relationship is bidirectional. Diabetes increases the risk of periodontal disease, and poorly controlled gum disease can make blood sugar management more difficult
• Pregnancy complications — periodontal disease has been associated with adverse pregnancy outcomes, though direct causal mechanisms are still being studied
• Rheumatoid arthritis — research has identified connections between the chronic inflammation of gum disease and inflammatory joint conditions

When to See a Dentist About Gum Disease

Contact your dental practice if you notice any of the following signs, as early assessment allows for simpler, more effective treatment:

• Gums that bleed during brushing, flossing, or eating
• Gums that appear red, swollen, or feel sore
• Persistent bad breath that does not improve with brushing
• Gums that appear to be pulling away from your teeth
• Loose teeth or changes in how your bite feels
• No dental check-up for over two years (or one year if under 18)

Our dental team at St Paul's Medical & Dental provides comprehensive periodontal assessment and treatment. For information about our fees, visit our treatment fees page.

Frequently Asked Questions About Gum Disease