Periodontitis is a chronic inflammatory condition that affects the supporting structures of the teeth, including the gums, periodontal ligaments, and alveolar bone. It is one of the leading causes of tooth loss in adults and can have significant implications for overall health. This condition often starts as untreated gingivitis, which causes inflammation of the gums. If not managed properly, it can progress into periodontitis, leading to severe tissue and bone damage, gum recession, and eventual tooth loss.