Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Periodontal disease
Medically reviewed by Min Clinic Staff | Updated: January 2026
Periodontal disease: A bacterial infection that destroys the attachment fibers and supporting bones that hold the teeth in the mouth. Left untreated, periodontal disease can lead to tooth loss. The main cause of periodontal disease is bacterial plaque, a sticky, colorless film that constantly forms on teeth.