Which stage represents advanced periodontitis?

Advanced periodontitis is characterized by severe tissue destruction, significant attachment loss, and potential tooth mobility. In this stage, there is substantial inflammation and degradation of the supporting structures of the teeth, which often leads to complications such as abscesses and even tooth loss if left untreated.

The classification of periodontal disease typically progresses through several stages, with each stage representing increasing severity. In this system, stage 4 represents the most advanced form of periodontitis, where the clinical signs of disease are evident and the prognosis for the teeth and surrounding structures becomes more severe. This stage reflects the culmination of untreated periodontal disease, showcasing extensive tissue destruction and a need for immediate and sometimes surgical intervention to manage the condition and preserve oral health.