Orthodontics means specializing in braces, clear aligner therapy (Invisalign) and appliance therapy (headgear and active retainers). Emphasis is on straightening teeth.
Prosthodontics means specializing in false teeth through bridges, crowns, dentures, and increasingly, implants. Most commonly, prosthodontists do full mouth reconstructions. Occasionally, they create prosthetics for noses, lips or chins lost in accidents.