Challenge: After decades of periodontal stability, the patient presented with a rapid advancement of pocketing and inflammation over a period of only 9 months. Background:  A 60-year-old male maintaining periodontal health for over 30 years started to relapse. Upon periodontal assessment, there were increasing pockets throughout, especially around an implant, of 9mm. The gingiva was generally medium pink with rolled margins and spongy, erythematous papilla with isolated severe inflammatio...