Periodontology process Implantology Periodontology Prostheses Pathologies Hygiene Orthodontics Guided tissue regeneration Buried connective tissue graft Free Gingival Graft Surgical treatment of periodontitis Laser and treatment of periodontitis Periodontal lithotripsy Surfacing Periodontitis and periodontal pocket formation Non-surgical treatment of periodontitis Consequence of the loss of the posterior teeth