Introduction
Gum recession is the pulling back of gum tissue from around the teeth so that more of the tooth—or the root—becomes exposed. It can cause sensitivity, make teeth look longer, and raise the risk of root decay and, when linked with periodontitis, bone loss and tooth mobility.
Causes include periodontal disease, aggressive brushing, thin gum tissue from genetics, tobacco use, misaligned bite, hormonal shifts, and plaque-driven inflammation that progresses from gingivitis to periodontitis.
Receded gum usually does not grow back fully on its own, but early care can stop further loss, calm inflammation, and protect roots. Options range from gentler hygiene and deep cleaning to grafting or other surgical cover of exposed roots.
This page is general education. Persistent sensitivity, bleeding, or a changing gum line should be assessed by a dentist or periodontist.
Overview
Recession may be gradual (chronic periodontal disease or wear) or more abrupt after trauma or harsh brushing. It differs from simple gingivitis, which is inflammation without lasting attachment loss.
Adults—especially older adults, smokers, and people with a family history of gum disease—are most often affected, though aggressive brushing can cause recession at younger ages.
With treatment and maintenance, many people stabilize the gum line and keep their teeth; delay raises the chance of cavities on roots, deeper pockets, and tooth loss.
- Margin of gum tissue moves apically, exposing root surfaces
- Common drivers: periodontitis, harsh brushing, smoking, genetics
- Early signs: sensitivity and teeth that look longer
- Lost gum rarely regenerates fully without grafting or similar procedures
- Bone loss is linked mainly to periodontitis, not recession alone
- Prevention centers on gentle, thorough hygiene and regular dental care
What happens in the body
Plaque bacteria inflame the gingiva. Untreated inflammation can progress to periodontitis, in which attachment fibers and supporting bone break down and the gum pulls away from the tooth, forming pockets.
Mechanical trauma from hard brushing or grinding, plus thin biotype gums, can also thin the soft-tissue margin even when infection is modest. Exposed roots lack enamel and are more prone to sensitivity and decay.
- Gingivitis can progress to periodontitis with attachment and bone loss
- Aggressive brushing abrades thin gum margins
- Tobacco impairs healing and worsens periodontal disease
- Systemic conditions such as diabetes can amplify inflammation
Signs and symptoms
Gum recession often starts subtly. Common signs include:
- Sensitivity to hot, cold, or sweet foods and drinks
- Teeth that appear longer or an uneven gum line
- Notches near the gum line
- Mild gum discomfort when brushing or flossing
- Bleeding or swollen gums
- Exposed roots and higher cavity risk on root surfaces
- Bad breath from bacterial buildup in pockets
- In advanced disease, loose teeth
Causes and risk factors
More than one factor often contributes. Clinicians commonly consider:
- Periodontal (gum) disease from long-standing plaque and tartar
- Aggressive or incorrect toothbrushing technique
- Genetic predisposition to thin gums or periodontitis
- Tobacco use
- Poor oral hygiene and high-sugar diets that fuel plaque
- Misaligned teeth or orthodontic factors that stress gum margins
- Hormonal changes that affect gum inflammation
- Teeth grinding (bruxism) and high stress-related clenching
- Certain autoimmune or metabolic conditions affecting gum health
Diagnosis and evaluation
A dental exam establishes how much tissue and bone are lost and what is driving it:
- Medical, dental, and family history including smoking and systemic disease
- Visual exam of gum color, contour, and inflammation
- Periodontal probing of pocket depths around each tooth
- Assessment of tooth mobility and bite
- Dental X-rays to evaluate bone levels
- Blood tests when diabetes or other systemic drivers are suspected
- Rarely, biopsy if another gum disease (e.g., lichen planus) is possible
Treatment and management
Goals are to stop progression, reduce sensitivity, and cover or protect roots when needed. Plans are individualized:
- Improved gentle brushing with a soft brush and daily interdental cleaning
- Professional scaling and root planing to remove subgingival deposits
- Antimicrobial rinses or localized antimicrobials when indicated
- Desensitizing toothpastes or professionally applied agents
- Fluoride to harden exposed root surfaces
- Gum grafting (autogenous or donor tissue) to cover exposed roots
- Minimally invasive soft-tissue repositioning techniques in selected cases
- Smoking cessation and management of grinding with a night guard if needed
Prevention, self-care, and lifestyle
Not every condition is fully preventable, but the steps below may lower risk or recurrence:
- Brush gently twice daily with a soft-bristled brush; floss or use interdental cleaners daily
- Attend regular dental cleanings and periodontal checks
- Avoid tobacco
- Limit sugary and highly acidic foods and drinks
- Eat a diet with calcium, vitamin D, and plenty of fruits and vegetables
- Treat gingivitis early before attachment loss develops
- Ask for technique coaching if you brush too hard
Possible complications
Delay, missed care, or unsafe self-medication can raise the chance of complications in some cases:
- Persistent root sensitivity
- Root-surface cavities
- Progression of periodontitis and jawbone loss
- Tooth mobility or tooth loss
- Infection risk after surgical procedures if aftercare is poor
- Aesthetic concern and social anxiety about smile appearance
- Possible links between advanced gum disease and systemic conditions such as diabetes and heart disease
When to see a doctor or seek emergency care
Seek prompt medical advice or emergency care if any of the following apply—it is safer not to wait and see:
- New or worsening tooth sensitivity or visibly longer teeth
- Gums that bleed easily or look swollen and inflamed
- Severe oral pain not controlled with usual pain relief
- Continuous gum bleeding
- Rapid facial or gum swelling, fever, or pus—possible spreading infection
- Trauma to the mouth with heavy bleeding
- Loose teeth or foul taste with pocketing
Living with the condition
Keep a meticulous but gentle oral-care routine and return for maintenance cleanings as advised. Desensitizing products and avoiding extremes of temperature in food can make eating more comfortable while roots are protected.
If surgery was done, follow wound-care instructions carefully and avoid smoking during healing. Address grinding and stress that can worsen recession.
Long-term success depends on controlling plaque and risk factors—treatment can stabilize gums, but habits determine whether recession returns.
Frequently asked questions
What is gum recession?
It is when gum tissue pulls away from the tooth, exposing more crown or root and often causing sensitivity and higher decay risk.
Is it curable?
Progression can usually be stopped and symptoms improved, but lost gum rarely grows back fully without grafting or similar coverage procedures.
What causes it?
Periodontal disease, aggressive brushing, genetics, smoking, poor hygiene, bite issues, and other factors—often in combination.
Can it be prevented?
Often yes, with gentle effective cleaning, regular dental visits, tobacco avoidance, and early treatment of gum inflammation.
When is surgery needed?
When recession is significant, roots are exposed, or non-surgical care cannot adequately protect or cover the area—your dentist or periodontist decides based on severity.
Can it come back after treatment?
Yes, if plaque control, smoking, or other causes continue. Maintenance care is essential.
Important caution
Gum recession is common and manageable. Early dental care, gentler hygiene, and risk-factor control protect teeth and comfort—seek prompt review if sensitivity or the gum line is changing.