Before starting infusion had to have a tooth extraction in Jan 2025. 1st infusion in February. After 5 infusions had what at first thought to be a canker sore but worsened within a week. Oral surgeon examined. Thinks a result from Xgeva infusions ~ osteocronosis. Biopsy next week to verify then treatment. A common side effect for Prostate metastasis in the bones with these type of treatments.