INTRODUCTION TO PROSTHODONTICSINTRODUCTION TO PROSTHODONTICS

TERMINOLOGYTERMINOLOGY

Prosthesis : An artificial replacement of an Prosthesis : An artificial replacement of an absent part of the human bodyabsent part of the human body

Prosthetics: The art and science of supplying Prosthetics: The art and science of supplying artificial replacement for missing parts of the artificial replacement for missing parts of the human bodyhuman body

Prosthodontics (prosthetic dentistry) : The Prosthodontics (prosthetic dentistry) : The branch of dentistry that deals with replacement branch of dentistry that deals with replacement of missing natural teeth and cranio-facial of missing natural teeth and cranio-facial structuresstructures

Prosthodontist: A specialist in prosthodonticsProsthodontist: A specialist in prosthodontics

Dentulous status Dentulous status

Partially edentulous status :Partially edentulous status :

Edentulous status :Edentulous status :

Complete denture: An artificial appliance Complete denture: An artificial appliance replaces the complete absence of natural replaces the complete absence of natural teeth and associated structures of the teeth and associated structures of the maxilla or mandible (single denture) or for maxilla or mandible (single denture) or for both jaws togetherboth jaws together

Removable partial denture (RPD): An Removable partial denture (RPD): An artificial appliance designed to replace artificial appliance designed to replace one or more of missing natural teeth one or more of missing natural teeth and it can be removed by the wearerand it can be removed by the wearer

Fixed partial denture (FPD) : An artificial Fixed partial denture (FPD) : An artificial appliance designed to replace one or more appliance designed to replace one or more of missing natural teeth but it can not be of missing natural teeth but it can not be removed by the wearerremoved by the wearer

Dental implants, obturators,Dental implants, obturators, immediate immediate dentures, over dentures and maxillofacial dentures, over dentures and maxillofacial prosthodontics will be discussed in prosthodontics will be discussed in advanced levelsadvanced levels

DIFFERENCES BETWEEN DIFFERENCES BETWEEN NATURAL & ARTIFICIAL TEETHNATURAL & ARTIFICIAL TEETH

Natural teeth are firmly rooted in the bone of the Natural teeth are firmly rooted in the bone of the jaw while artificial dentures rest on the gumjaw while artificial dentures rest on the gum

Forces exerted on the natural tooth is Forces exerted on the natural tooth is transmitted to the bone that supports it.transmitted to the bone that supports it.

Alveolar bone supporting natural teeth receives Alveolar bone supporting natural teeth receives tensile strength.tensile strength.

Complete denture moves in relation to the Complete denture moves in relation to the underlying bone during function.underlying bone during function.

Forces of mastication exerted by natural teeth Forces of mastication exerted by natural teeth are greater than those exerted by artificial teeth.are greater than those exerted by artificial teeth.

Why Edentulous Patient Must Why Edentulous Patient Must Restore His Missing Natural TeethRestore His Missing Natural Teeth

TO restore the function of masticationTO restore the function of mastication

To improve speech and cosmetic To improve speech and cosmetic appearance.appearance.

To avoid abnormal masticator habits that To avoid abnormal masticator habits that lead to TMJ disorders.lead to TMJ disorders.

STEPS OF COMPLETE DENTURE STEPS OF COMPLETE DENTURE CONSTRUCTIONCONSTRUCTION

1- Clinical step: 1- Clinical step: Examination of the patientExamination of the patient

2- Clinical step2- Clinical step: Primary impression: Primary impression

Laboratory stepLaboratory step: Pouring the impression and : Pouring the impression and preparation of study (diagnostic) cast from preparation of study (diagnostic) cast from plaster. Fabrication of custom trayplaster. Fabrication of custom tray

3-Clinical step: 3-Clinical step: Final impressionFinal impression

Laboratory stepLaboratory step: pouring master cast from : pouring master cast from stone plaster. Fabrication of record blocksstone plaster. Fabrication of record blocks

4-4- Clinical stepClinical step: Recording jaw relations : Recording jaw relations and selection of artificial teethand selection of artificial teeth

Laboratory step:Laboratory step: Mounting the casts on the Mounting the casts on the articulator. Arrangement of artificial teeth. articulator. Arrangement of artificial teeth. Wax contouring.Wax contouring.

5- Clinical step5- Clinical step: Trying in the denture: Trying in the dentureLaboratory step: Laboratory step: Processing and finishing Processing and finishing

the denture.the denture.

6- Clinical step: 6- Clinical step: Denture insertion and post Denture insertion and post insertion care insertion care

WILL YOU STUDY HARD??????WILL YOU STUDY HARD??????