Receding Gums and Gum Graft: Can Receded Gum Grow Back?

Gingival recession develops when the gum margin shifts apically, away from its original position near the crown of the tooth, gradually exposing more of the root surface underneath. Multiple factors contribute, and they are not mutually exclusive — a person can have more than one operating at once. Periodontal disease is widely regarded as the most common underlying cause: as periodontitis destroys the bone and connective tissue supporting a tooth, the gum margin recedes along with the lost attachment, which is why gum recession is closely linked to periodontitis rather than being an unrelated condition on its own.

Aggressive brushing causes gingival recession in the view of major clinical patient-education resources — Cleveland Clinic's page on gum recession lists brushing too hard or too aggressively among the primary causes, alongside plaque and tartar buildup, trauma or injury to the gum tissue, abnormal tooth positioning, tobacco use, and oral piercings. It is worth being precise about the strength of this specific link, however: a systematic review published in the Journal of Clinical Periodontology examined the evidence connecting toothbrushing specifically to non-inflammatory gingival recession and found the data inconclusive, meaning a direct causal relationship has not been firmly established in controlled research, even though clinicians commonly observe the association and it remains standard advice to use a soft-bristled brush with a light, controlled technique.

Genetics also plays a role that is easy to overlook: some people are simply born with thinner gingival tissue or a thinner layer of bone covering the roots, which makes recession more likely to develop even with reasonable oral hygiene and no active disease. Tooth position can also contribute — a tooth that sits outside the normal dental arch may have thinner bone and gum coverage over it, predisposing that specific tooth to recession under normal biting function.

Gingival recession exposes the tooth root as the protective gum margin retreats, and the clinical significance of that exposure comes down to what covers the root compared with what covers the crown. The crown is covered by enamel, the hardest substance in the human body; the root is covered by cementum, a much thinner and softer layer that was never designed to be exposed to the mouth environment, brushing, or temperature change. Where recession has progressed further, the cementum layer itself can wear away, exposing the underlying dentin directly.

Dentin is riddled with microscopic tubules that connect to the nerve inside the tooth, and exposed root causes dentin hypersensitivity through this structure: when the tubules are open to the mouth, changes in temperature, sweet or acidic foods, or even a light touch from a toothbrush can trigger fluid movement inside the tubules that the nerve registers as a short, sharp pain. A 2019 systematic review and meta-analysis in the Journal of Dentistry (Favaro Zeola, Soares, and Cunha-Cruz), pooling 77 studies, reported an average prevalence of dentine hypersensitivity in adults of 33.5% (95% CI 30.2-36.7%) across the studies analysed, and a pooled, quality-adjusted estimate of 11.5% (95% CI 11.3-11.7%) once study methodology was accounted for. The wide spread between these two figures reflects real differences in how hypersensitivity was measured and defined across the underlying studies, which is why both numbers are worth reporting together rather than quoting the higher one alone.

Beyond sensitivity, visible symptoms of recession include teeth that appear longer than before, a visible colour change at the gumline where yellower root surface sits next to whiter enamel, and sometimes a shallow notch at the junction of enamel and cementum that can trap plaque and be difficult to keep clean with a standard brushing technique.

Receded gum tissue does not grow back on its own, and this is a point where expectations often diverge from the underlying biology. Skin and some other tissues heal by regeneration, in which new cells migrate across a wound and close it. Gum tissue that has receded is not an open wound in that sense: the tissue has settled at a lower position, and the body does not treat that new position as damage requiring repair, so there is no wound-closing signal driving the tissue back to where it used to sit. Cleveland Clinic states this directly in its patient guidance on gum recession: "receding gums can't grow back," adding that "gum recession can't be cured" but can be "successfully managed with proper treatment and care."

This means no toothpaste, mouth rinse, oil, or home remedy regrows lost gum tissue, regardless of marketing claims that circulate for desensitising or "gum repair" toothpaste products. Products marketed for sensitive teeth can genuinely help with the dentin hypersensitivity that recession causes, typically by physically occluding the exposed dentin tubules described above or by reducing nerve response to stimuli, and that is a legitimate, evidence-supported symptom-management function. That is a materially different claim from regrowing gum tissue that has already receded, and the two should not be conflated when reading a product label.

What can genuinely change the trajectory is addressing the cause. Where recession is driven by active periodontal disease, treating that disease — including with scaling and root planing — can halt further attachment loss, even though it does not restore tissue that is already gone. Where recession is driven by brushing technique, switching to a soft-bristled brush and a lighter stroke can reduce further mechanical trauma going forward. Neither step reverses recession that has already occurred; both are aimed at preventing the recession from getting worse, which is a distinct and more realistic goal than regrowth.

When recession has exposed enough root surface to cause persistent sensitivity, ongoing root decay risk, or gum loss that is likely to keep progressing, a gingival graft is the surgical option used to cover the exposed root surface and add tissue where it has been lost. In broad terms, a periodontist takes gum tissue — either from the roof of the patient's mouth (the palate) or from a processed donor or synthetic source — and secures it over the area of recession with sutures, aiming both to cover the exposed root and to thicken the band of gum tissue around the tooth so it is more resistant to further recession. Recovery commonly takes around two weeks for the surgical site to settle, though full tissue maturation takes longer.

There is more than one graft technique, and the right one depends on the individual case: a connective-tissue graft uses tissue harvested from beneath the surface layer of the palate and is commonly used where root coverage and colour match to the surrounding gum both matter; a free gingival graft uses a thin layer of surface tissue and is more often used to thicken a narrow band of gum rather than for root coverage in a highly visible area; and pedicle or other flap techniques reposition existing gum tissue from beside the recession site rather than taking it from elsewhere in the mouth. The choice, and the number of sites treated in one sitting, is a clinical decision made by the treating periodontist based on the anatomy involved.

On cost, this article draws on the Ministry of Health's published Guide to Dental Treatment Costs, which sets benchmark fees for 18 general and restorative dental procedures, from consultations and fillings through to root canal treatment and dentures. Gingival grafting, along with periodontal surgery generally, does not appear in that published list, and no separate MOH or CHAS benchmark specific to gum grafting has been published as of this writing. This is a genuine information gap rather than an oversight in this article: periodontal surgery sits outside the primary-care-oriented scope that the MOH benchmark and CHAS dental subsidy schedules were designed to cover, so a benchmark figure that could be quoted with the same confidence as the scaling or filling figures elsewhere on this site simply does not exist yet. Because fees for surgical periodontal procedures are typically set per site or per tooth and depend on the graft technique and number of areas treated, anyone considering a gingival graft should expect an individualised quote from the treating periodontist, and can separately check with MOH or their periodontist whether their specific procedure is classified as MediSave-claimable, rather than relying on a single published figure to compare it against.