Receding Gums Explained: Causes, Treatments, and How to Take Control of Your Gum Health

What Receding Gums Are and Why They Matter

Receding gums, or gingival recession, means the gum margin has moved away from the crown of the tooth and exposed part of the root. Gum tissue that has already receded does not grow back on its own, and neither does the bone beneath it. Treatment can stop the progression, calm inflammation, reduce sensitivity and, where it is indicated, cover exposed roots surgically. Those are different results, and it helps to know which one a given treatment offers.

Healthy gums fit tightly around the teeth, cover the roots completely and have a light pink colour that varies between individuals. Receding gums make the teeth look longer. Root surfaces become visible, notches form at the gum line, and small gaps can open between the gum and the tooth. Dentists grade the severity with classification systems such as Miller's, which record how far the margin has moved and whether the tissue between the teeth is also lost.

Recession is more than a cosmetic change. The exposed root has no enamel; it is covered by thin cementum, which wears and decays more easily. That is why root caries and sensitivity to cold, heat, acidic or sweet food follow recession so reliably. When recession comes from periodontal disease, the loss of gum goes together with loss of the bone that supports the tooth, which over time can lead to mobility, changes in the bite, difficulty chewing and eventually tooth loss. For a broader overview of symptoms and first steps, see our guide to receding gums.

How Common Gum Recession Is

Gum recession is common in adults and becomes more so with age. The United States NHANES III survey examined 9,689 people aged 30 to 90 and estimated that 23.8 million people, 22.5% of adults aged 30 and over, had one or more tooth surfaces with 3 mm or more of gingival recession (PubMed 10052768). The prevalence, extent and severity of recession increased with age, and males had significantly more recession than females (PubMed 10052768).

The same survey found that recession was much more prevalent and more severe on the cheek-facing surfaces of the teeth than on the surfaces between them (PubMed 10052768). This fits the everyday picture. The outer surfaces are where the gum is often thinnest, where the toothbrush works hardest and where recession is easiest to see in the mirror.

The survey also placed recession alongside two related findings. Gingival bleeding was found in 50.3% and calculus in 91.8% of the adults examined (PubMed 10052768). The authors noted that these conditions are associated with destructive periodontal disease and root caries, besides their effect on appearance and self-esteem (PubMed 10052768). Because recession tends to progress with age, a small area noticed in the thirties is worth monitoring before it becomes a larger defect.

Early Signs You May Notice

Recession develops slowly, and the early signs are easy to miss. The most common first sign is tooth sensitivity: a short, sharp pain with cold drinks, cold air or brushing, caused by exposed root dentin. Teeth may start to look longer than before, or a notch or groove may be felt at the gum line with a fingernail. In some people the root surface becomes visible as a slightly yellower band above the enamel.

Other signs point to the process driving the recession. Gum inflammation or bleeding when brushing suggests periodontal disease. Teeth that shift or change position, or new gaps between them, can indicate loss of supporting bone. Recession limited to one or two teeth, especially on the cheek side, more often reflects local factors such as thin tissue, tooth position or brushing trauma.

Home observation helps with early detection, but it cannot tell how much bone has been lost or whether the process is active. A dental or periodontal examination measures the recession, probes the pockets around the teeth, checks the thickness of the gum and, where needed, uses radiographs to assess bone. If grinding or jaw pain is part of the picture, a jaw joint assessment may be added to the diagnosis. Early assessment matters because the range of treatment options is widest when recession is still small.

Causes That Add Up

Recession usually has more than one cause, and each removes a little more support.

Periodontal disease

Bacterial plaque drives inflammation that destroys gum and bone. It is the leading cause, and it has to be controlled before any other treatment can hold.

Brushing habits

A hard brush and a scrubbing technique are widely blamed. The evidence is less settled than the advice suggests: a systematic review found eight observational studies reporting a positive association between toothbrushing frequency and recession, but concluded that the data to support or refute the link were inconclusive (PubMed 17953693). A soft brush and gentle technique remain sensible, because brushing too hard also wears enamel and root surfaces.

Thin tissue and tooth position

Thin gum tissue can run in families, and teeth positioned towards the cheek often have little bone and gum over their roots.

Tobacco and vaping

Both reduce blood flow to the gums and impair healing.

Grinding and bite

Bruxism and a misaligned bite concentrate force on individual teeth, and orthodontic treatment or bite adjustment may be part of the plan.

Oral piercings

Tongue and lip piercings rub against the gum and frequently cause localised recession.

What Can Improve and What Cannot

Whether receding gums can be reversed has a two-part answer. Some things improve with treatment and good home care, and some do not regenerate on their own.

What can improve is the inflammation, the pocket depth around the teeth, the sensitivity, the stability of the gum and, to a degree, the appearance. Progression can stop once the cause is removed. Mild recession that is partly caused by swollen, inflamed gum can look better after the inflammation settles.

What cannot regenerate naturally is gum tissue that has already been lost, the bone beneath it and the covering over a severely exposed root. No rinse, toothpaste or supplement grows these back. Root coverage is achievable, but it is a surgical result.

This distinction matters when evaluating claims. Products that promise to regrow gums can reduce inflammation and bleeding, which is a real benefit, but the gum margin stays where it is. Stopping progression, reducing sensitivity and protecting the exposed root are the goals for most patients, and surgical coverage is added when the defect, the appearance or the sensitivity justifies it. No home remedy regrows lost gum tissue; clinical treatment is what produces a lasting result.

Professional Treatment From Deep Cleaning to Grafts

Treatment starts by controlling the cause and moves to surgery when the defect needs it.

Non-surgical treatment

Scaling and root planing, a deep cleaning below the gum line, removes plaque and calculus from the root surface so the gum can heal against it. Where infection persists, antimicrobial medication can be placed directly into periodontal pockets. Laser-assisted periodontal therapy is used in some practices as an alternative way to remove infected tissue. These steps stop progression; they do not cover the root.

Surgical and regenerative treatment

For root coverage, several gum treatments exist. A connective tissue graft takes tissue from the palate and places it over the exposed root, usually under a flap of the patient's own gum that is moved towards the crown. In a network meta-analysis of 38 trials with 830 patients and 1,265 recession defects, a subepithelial connective tissue graft with a coronally advanced flap ranked first for complete root coverage, mean root coverage and keratinised tissue gain at 6 and 12 months (PubMed 35451068). The one exception was mean root coverage at 12 months, where enamel matrix derivative with a coronally advanced flap performed better (PubMed 35451068).

A free gingival graft is used mainly to thicken thin gum tissue. The pinhole surgical technique repositions the gum through a small opening without a graft, and guided tissue regeneration is used where bone loss around the tooth also needs to be addressed.

Home Care That Supports Treatment

Home care cannot reverse recession, but it keeps it from getting worse and supports every clinical treatment.

Use a soft-bristled brush with a gentle technique, such as the Bass technique, angled at the gum line without scrubbing. Clean between the teeth once a day with floss or interdental brushes. For sensitivity, a desensitising toothpaste is a reasonable choice: a meta-analysis of 53 randomised trials with 4796 patients found that toothpastes containing stannous fluoride, potassium, arginine and several other agents relieved the symptoms of dentin hypersensitivity (PubMed 29787782). Choosing the right toothpaste for exposed roots is part of this step. An antibacterial mouthwash can reduce plaque and bleeding as an addition to brushing.

Other habits deal with the causes. Wear a night guard if you grind. Stop tobacco and vaping, which improves blood flow to the gums and helps healing. If you are diabetic, keep blood glucose under control, because uncontrolled diabetes worsens gum disease. Avoid frequent acidic food and drink, keep a nutrient-rich diet and attend regular professional cleanings.

A simple monthly self-check helps. Look at your gum line in good light, note any tooth that appears longer or any new notch, and bring those observations to your next appointment. Progression stops when the cause stops, and home care is where most causes are managed day to day.

When to See a Periodontist

A periodontist, a specialist in gum and bone around the teeth, should see recession that shows signs of active disease or keeps advancing. The signs that call for specialist care are bleeding gums, recession that progresses between visits, loose teeth, deep periodontal pockets, visibly exposed roots and bone loss on radiographs.

At the consultation, the periodontist measures each defect, assesses the tissue thickness and the bone between the teeth, and identifies the causes that are still active. The plan usually starts with controlling inflammation and correcting habits, and adds surgery for defects that need coverage or tissue thickening.

Ask which treatment suits your specific defect and why. Ask whether the condition can be stabilised long term, whether grafting or the pinhole technique applies to your case, how soon treatment should begin and what result is realistic for each tooth.

Recession that is ignored tends to progress towards sensitivity, root decay, bone loss and, in advanced periodontal disease, tooth loss. Recession that is managed early can usually be stabilised, and exposed roots can often be covered when coverage is needed.