Receding gums — gums that have pulled away from the tooth surface, exposing the root beneath — affect a significant proportion of adults. The exposed root is not simply an aesthetic concern. It is a clinical problem with real consequences for tooth sensitivity, structural integrity, and long-term tooth survival. Understanding what causes recession, what happens if it is left untreated, and what can be done about it is the starting point for protecting teeth that are already showing signs of exposure.

What is gum recession?

The gum tissue — normally forms a tight seal around the neck of each tooth, protecting the root surface and underlying bone from bacteria, temperature, and mechanical trauma. When this tissue recedes — moves apically, away from the crown and toward the root — it exposes the cementum-covered root surface beneath.

Unlike enamel, which covers the crown, root cementum is thin, porous, and highly sensitive. Exposed root surfaces are immediately vulnerable to sensitivity, bacterial invasion, and physical abrasion. Over time, recession that is not treated progresses — slowly in most cases, rapidly in others — with each millimeter of further tissue loss compounding the clinical and aesthetic consequences.

What causes gum recession?

Recession rarely has a single cause. In most patients it is due to several contributing factors acting simultaneously or sequentially.

Toothbrush abrasion The most common cause of localized recession in otherwise periodontally healthy patients. Aggressive horizontal brushing with a medium or hard-bristled toothbrush physically damages the gum tissue over years of cumulative trauma. The pattern is characteristic — recession typically affects the outer surfaces of teeth most prominent in the arch, with a notch or groove at the gum-line of the affected teeth. The damage is slow and painless until the root is sufficiently exposed to cause sensitivity, by which point significant tissue has already been lost.

Periodontal disease Chronic periodontitis destroys the bone and connective tissue attachment supporting the teeth from below. As attachment is lost, the gum tissue follows — receding to the level of the remaining bone support. Recession from periodontal disease tends to be generalized rather than localized to one or two teeth, and is accompanied by the other features of active gum disease — bleeding, deep pockets, bone loss on X-ray.

Thin gum biotype The gum biotype — the inherent thickness and quality of gum tissue — varies significantly between individuals and is largely genetically determined. Patients with a thin, delicate gum biotype are significantly more susceptible to recession from any mechanical or inflammatory insult than those with thick, fibrous gum tissue. A thin biotype is not a pathological finding — it is an anatomical characteristic — but it means the threshold for recession is lower and the consequences of trauma or inflammation are more pronounced.

Orthodontic treatment Tooth movement outside the limits of the supporting alveolar bone — particularly moving teeth labially, toward the outer surface — can stretch thin gum tissue to the point of recession. This is a recognized risk of orthodontic treatment, particularly with clear aligner therapy where teeth may be moved beyond their natural bone envelope. Careful treatment planning and awareness of gingival biotype reduces but does not eliminate this risk.

High frenum attachments A frenum — the small band of tissue connecting the lip or cheek to the gum — that attaches high on the gum margin creates continuous tension that can pull gum tissue away from the tooth over time. A prominent mid-line frenum between the upper central incisors is a common contributor to recession at that specific site.

Bruxism and clenching The excessive forces generated by grinding and clenching create lateral stress at the cervical region of the tooth — the neck where crown meets root — that can contribute to both tooth flexure abrasion and gum recession. Bruxism-related recession tends to be accompanied by other signs of grinding — worn biting surfaces, tooth fractures, jaw muscle tenderness.

Lip and tongue piercings Chronic contact of jewellery against gum tissue creates persistent mechanical trauma that produces localized recession at the contact site. Lower central incisors are the most commonly affected teeth. The recession can be rapid and significant.

Tooth malposition A tooth that sits outside the natural arch — rotated, tipped, or positioned too far forward or backward — may have inadequate bone and gum coverage on one or more surfaces, predisposing it to recession regardless of oral hygiene.

What happens if gum recession is left untreated?

Recession is progressive. It does not stabilize spontaneously once it has begun — unless the cause is removed. Without addressing both the cause and the existing tissue loss, the following consequences develop over time:

Root sensitivity Exposed root cementum is acutely sensitive to temperature, touch, sweet and acidic stimuli. As recession progresses, sensitivity worsens. In advanced cases the sensitivity can be debilitating and affect dietary choices, oral hygiene compliance, and quality of life.

Root decay Root surfaces have no enamel protection. Exposed root cementum is significantly more vulnerable to decay than the enamel-covered crown. Root caries — cavities on the root surface — develop in the presence of plaque accumulation on exposed roots and can progress rapidly. Root decay in the context of recession requires filling and management of the underlying recession to prevent recurrence.

Notching and abrasion Continued brushing trauma on exposed root surfaces creates progressive abrasion — physical wearing away of the cementum and dentine — producing a visible V-shaped notch at the gumline. Once this notch has formed, the structural integrity of the tooth at that level is compromised.

Aesthetic concern Significant recession produces visible lengthening of the teeth — hence the expression “long in the tooth” — and an uneven, asymmetrical gumline. For anterior teeth particularly, this has a pronounced aesthetic impact that affects smile confidence.

Tooth loss In advanced cases where recession is associated with significant periodontal attachment loss, the teeth may become mobile and eventually lost. Recession alone — without bone loss — rarely leads directly to tooth loss, but it increases vulnerability to the conditions that do.

How gum recession is treated

Treatment has two components: addressing the cause to prevent further progression, and restoring the lost tissue where clinically indicated.

Addressing the cause

This is the essential first step. Restoring gum tissue without removing the cause of recession produces a result that will not last.

• Brushing technique modification: Switching to a soft-bristled brush and retraining technique — gentle circular or modified Bass technique rather than horizontal scrubbing — is the single most important intervention for abrasion-related recession. We demonstrate correct technique at Tooronga Family Dentistry and recommend electric toothbrushes with pressure sensors for patients who consistently over-brush.
• Periodontal treatment: Active gum disease must be treated before any surgical recession management. Scale and clean, root planing, and a structured maintenance program to arrest the inflammatory process driving bone and tissue loss.
• Occlusal splint for bruxism: A custom nightguard reduces the excessive cervical forces associated with grinding and clenching.
• Frenectomy: Surgical release of a high frenum attachment eliminates the tension contributing to localized recession at the affected site. Often performed in conjunction with gum grafting.
• Orthodontic reassessment: Where tooth movement has contributed to recession, treatment planning modification may be required.

Gum grafting — restoring lost tissue

Where recession has produced clinically significant root exposure — causing sensitivity, aesthetic concern, or vulnerability to root decay — surgical tissue grafting is the definitive treatment for restoring gum coverage.

Connective tissue graft (subepithelial connective tissue graft) The gold standard procedure for recession coverage. Connective tissue is harvested from beneath the surface of the palate — leaving the overlying epithelium intact for faster palatal healing — and sutured into position over the exposed root at the recipient site. The graft becomes incorporated into the existing tissue, re-establishing a band of thick, keratinised gum tissue over the root.

This procedure produces highly predictable root coverage — complete coverage is achievable in carefully selected cases — and a natural-looking result that blends seamlessly with the surrounding tissue. It is performed under local anesthesia.

Free gingival graft A strip of tissue including the epithelial surface is harvested from the palate and placed at the recipient site. Produces a thicker band of keratinised tissue but with a less natural appearance than a connective tissue graft — the color match between graft and surrounding tissue is typically less precise. Used predominantly where the primary goal is increasing the width of attached gingiva rather than aesthetic root coverage.

Allografts and xenografts Tissue substitutes — processed human donor tissue or animal-derived collagen matrices — that eliminate the need for a palatal harvest site. Reduce post-operative discomfort and allow treatment of multiple sites simultaneously without the limitation of available donor tissue. Results are comparable to autogenous grafts in most studies, though some clinicians prefer autogenous tissue for optimal long-term outcomes.

Tunnel technique and modified approaches Minimally invasive alternatives to traditional grafting that use small incisions and tunnelling beneath the existing tissue to position the graft with minimal disruption to the blood supply. Associated with faster healing and excellent aesthetic outcomes in appropriate cases.

The pinhole surgical technique A minimally invasive approach using a small entry point through which existing gum tissue is repositioned coronally — toward the crown — over the exposed root, with a collagen matrix used to stabilize the new position. Less invasive than traditional grafting with faster healing, though long-term evidence is still accumulating compared to the extensive track record of connective tissue grafting.

Composite bonding for root coverage Where surgical grafting is not appropriate — due to patient preference, medical contraindications, or specific anatomical factors — tooth-coloured composite resin can be bonded to the exposed root surface to cover sensitivity, restore contour, and reduce vulnerability to root decay. This is not a tissue replacement — it does not restore biological tissue — but it is a clinically useful and aesthetically acceptable alternative in selected cases.

What to expect from gum grafting

Gum grafting is a well-established surgical procedure with a long clinical track record. Recovery typically involves mild to moderate discomfort for five to seven days, managed with ibuprofen and paracetamol. A soft diet is required for two to three weeks while the graft heals. Sutures are removed at one to two weeks. The full aesthetic result — complete colour and contour maturation — develops over three to six months as the graft matures and integrates.

The palatal harvest site, in autogenous grafting, is typically the primary source of post-operative discomfort — though patients are consistently surprised that it is less uncomfortable than anticipated. Modern surgical techniques and careful palatal management minimize this significantly.

Who performs gum grafting at Tooronga Family Dentistry?

We assess all patients with recession at Tooronga Family Dentistry and determine whether grafting is clinically indicated, what type of procedure is most appropriate, and whether treatment is best provided within our practice or referred to a periodontist — a specialist in gum tissue surgery — for complex multi-site grafting or cases with significant anatomical challenges.

We see patients from Glen Iris, Malvern, Hawthorn, Hawthorn East and Ashburton for gum recession assessment and management, and we provide a clear, honest recommendation based on clinical findings rather than a default toward surgery.

Is gum grafting worth it?

For patients with symptomatic recession — significant sensitivity, active root decay, progressive tissue loss — the answer is almost always yes. Restoring tissue coverage eliminates sensitivity, protects the root from further decay and abrasion, and halts the progression of tissue loss. The investment in time and cost is substantially less than the long-term cost of managing root decay, replacing worn or decayed root surfaces, or ultimately losing the tooth.

For patients with mild, stable recession and no symptoms, careful monitoring and cause elimination may be all that is required. We make this distinction clearly.

Noticing receding gums, root sensitivity, or longer-looking teeth? Book an assessment at Tooronga Family Dentistry — we see patients from Glen Iris, Malvern, Hawthorn, Hawthorn East and Ashburton and provide a thorough assessment of recession cause, severity, and the most appropriate treatment pathway.