Preprosthetic mouth preparation involves procedures done prior to prosthetic treatment to facilitate treatment. This includes relieving pain and infection through extractions or fillings, correcting occlusal planes through orthodontics or splinting, and conditioning abused tissues through periodontal therapy or alveoplasty. The goal is to remove any hindrances to prosthetic treatment by managing dental and periodontal issues, extracting problematic teeth, and shaping tissues.