Introduction To Prosthodontics PDF

Introduction to Prosthodontics  History of false teeth Replacements of lost teeth have been produced for thousands of years 1st dentures were 700 BC from ivory & bone Silver, gold, mother of pearl In 1774, dentures made from porcelain The real breakthrough came when vulcanized rubb...

Introduction to Prosthodontics  History of false teeth Replacements of lost teeth have been produced for thousands of years 1st dentures were 700 BC from ivory & bone Silver, gold, mother of pearl In 1774, dentures made from porcelain The real breakthrough came when vulcanized rubber was discovered  History of false teeth The discovery of acrylic resin is the next major revolution in prosthodontics Another important milestone in tooth replacement was the introduction of implants.  Definitions Prosthetics: Replacements for missing parts of the human body. Prosthodontics: The branch of dentistry pertaining to the restoration and maintenance of oral function, comfort, appearance, and health of the patient Prosthesis: An artificial replacement of absent part of human body  Definitions Dentulous: An individual who has his/her natural teeth present. Edentulous: The individual who has lost his/her natural teeth. Depending on the number of teeth missing they may be partially or completely edentulous. Branches of Prosthodontics 1. Fixed prosthodontics 2. Removable prosthodontics a) complete denture prosthodontics b) partial denture prosthodontics 3. Implant prosthodontics 4. Maxillofacial prosthetics  Types of Prostheses Denture: A prosthesis which replaces the one or more teeth and related structures in the mouth. Partial, complete, fixed or removable. Partial denture: A dental prosthesis which restores part not all of the dentition. Fixed partial denture: luted or securely retained to natural teeth, roots, or dental implants. The patient cant remove from the mouth.  Types of Prostheses Removable partial denture: Any prosthesis that replaces the teeth in a partially dentate arch. The patient can remove it from the mouth. Complete denture: A removable dental prosthesis that replaces the entire dentition and associated structures of the maxilla and mandible.  Reasons for tooth loss Traumatic injuries Caries Periodontal diseases Cysts, malignancies and tumors Radiation therapy for tumors Grossly malaligned teeth Iatrogenic extraction Congenitally missing teeth Failure to erupt (impacted teeth)  Sequelae of tooth loss Resorption: The socket gradually remodels until it assumes the shape of the rounded edentulous ridge. Tilting Drifting Occlusal disharmony leads to discomfort, pain, or damage to temporomandibular joints. Sequelae of tooth loss  Treatment Options Preservation and prevention Post and core/crowns  Treatment options Implants Treatment options Fixed partial dentures  Treatment options Cast Removable partial dentures  Treatment options Overdenture  Treatment options Complete denture  Treatment options Implant retained denture  Treatment options Maxillofacial prostheses Make prosthetic replacements of other areas of the mouth and face lost by disease and trauma  Masticatory loads Significantly lower than that produced by natural teeth Natural teeth can produce forces up to 175 pounds but usually 40 to 50 pounds Denture wearers: the average force was in the region of 22-24 pounds in the molar-bicuspid region  Masticatory loads CD wearers are able to generate forces that are only 10-15% of those with natural teeth