Prosthesis: is an artificial appliance used as a replacement of any body part.
Prosthodontics: is the branch of dentistry that pertains to the diagnosis, treatment planning, rehabilitation, and maintenance of oral function, comfort, appearance, and health of patients with clinical conditions associated with missing or deficient teeth, and/or maxillofacial tissues using biocompatible substitutes.
It may be subdivided into:
1- Fixed prosthesis: is any dental prosthesis securely retained to natural teeth, roots, or dental implant & the patient can’t remove from the mouth.
2- Removable prosthesis: is any dental prosthesis that replace some or all teeth as a partial or complete denture.