Periodontal disease (gum disease) is an infection of the structures supporting the teeth — gums, ligaments, and bone — caused primarily by bacterial plaque and tartar.
Gingivitis (early gum disease) causes redness, swelling, and bleeding gums but does not yet involve bone loss. It is reversible with professional cleaning and improved oral hygiene.
Periodontitis (advanced gum disease) involves destruction of the bone supporting the teeth and is a leading cause of tooth loss in adults. Treatment includes scaling and root planing (SRP) and, in advanced cases, periodontal surgery.
Maintenance therapy — professional cleaning every 3–6 months — is essential after active periodontal treatment to prevent recurrence.