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Gingival Recession

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Dental Conditions Dental Glossary

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Gingival Recession

Gingival recession occurs when the gingival margin migrates apically below the cementoenamel junction (CEJ), exposing the root surface of a tooth to the oral environment. It is one of the most frequently observed findings in periodontal examinations and can affect a single tooth or multiple teeth across any age group.

Common Causes

Recession develops through a combination of anatomical, behavioral, and pathological factors:

  • Periodontal disease: Bacterial plaque and calculus drive chronic inflammation that destroys the attachment apparatus, including the periodontal ligament and supporting alveolar bone, causing the gingiva to migrate apically.
  • Aggressive tooth brushing: Mechanical trauma from hard bristles or excessive force abrades the thin gingival tissue, especially on facial surfaces.
  • Thin gingival biotype: Patients with a delicate gingival phenotype have less tissue volume to withstand repeated trauma or inflammation.
  • Orthodontic tooth movement: Teeth displaced beyond the bony envelope can dehisce the cortical plate, resulting in overlying soft tissue loss.
  • Oral habits and frenum pull: High frenum attachments, oral piercings, and parafunctional habits such as bruxism can all contribute to localized recession over time.

Clinical Significance

Exposed root surfaces are covered by cementum, a tissue that is softer and more porous than enamel, making them highly vulnerable to two major complications. Dentin hypersensitivity develops when recession uncovers dentinal tubules, producing sharp pain in response to thermal, tactile, or osmotic stimuli. Root caries risk also increases sharply because cementum lacks the acid-resistant mineral density of enamel. Beyond these functional concerns, recession creates a visible elongated tooth appearance that frequently motivates patients to seek care.

Measurement and Classification

Clinicians quantify recession by measuring the distance from the CEJ to the free gingival margin using a calibrated periodontal probe. The Cairo Classification categorizes recession defects based on the presence and extent of interproximal attachment loss, which directly determines whether conservative or surgical management is appropriate.

Treatment Options

Mild recession may respond to behavioral modification alone—adopting a soft-bristled toothbrush, correcting brushing technique, and controlling underlying periodontal disease. More advanced or aesthetically significant cases typically require mucogingival surgery, such as a connective tissue graft or coronally advanced flap, to restore gingival coverage and long-term tissue stability.

Identifying recession early through routine periodontal charting remains the most effective strategy for preserving root surface integrity and avoiding the need for surgical intervention.