intro lecture Flashcards
Prosthodontics is that body of knowledge and skills pertaining to:
Prosthodontics is that body of knowledge and skills pertaining to:
• The restoration and replacement of the natural dentition with
artificial substitutes.
• The restoration of the dental arches with fixed or removable
dental prostheses.
•Prosthodonticsis def
•Prosthodonticsis the dental specialty pertaining to the diagnosis, treatment planning, rehabilitation, and maintenance of the oral function, comfort, appearance, and health of patients with clinical conditions associated with missing or deficient teeth and/or maxillofacial tissues by using biocompatible substitutes.
Fixed Prosthodontics def
Fixed Prosthodontics: the branch of prosthodontics concerned with the replacement and/or restoration of teeth by artificial substitutes that cannot be removed from the mouth by the patient.
Branches of Prosthodontics
- Fixed Prosthodontics
- Removable Prosthodontics
a) Complete Denture Prosthodontics
b) Partial Denture Prosthodontics - Implant Prosthodontics
- Maxillofacial prosthetics
Scope of Fixed Prosthodontics
one tooth or entire occlusion?
function/esthetics?
replacement of?
improve?
complete/maintain?
Restoration of a single tooth to rehabilitation of the entire occlusion”
• Restore function and esthetics of single teeth
• Replacement of missing teeth
• Improve comfort and mastication
• Complete / maintain the integrity of dental arches
• Self image
Reasons for Tooth Destruction and Loss
Caries
• Periodontal disease
• Trauma
Erosion (GERD)=Bulemia
• Worn Dentition (Attrition)=Bruxism
•Cysts, malignancies and tumors
•Radiation therapy for tumors
•Grossly mal-aligned teeth
•Iatrogenic extraction
•Congenitally missing teeth
•Failure to erupt (impacted teeth)
Sequelae of tooth loss
• Resorption: The
socket remodels until
it assumes the shape
of the rounded
edentulous ridge.
• Tilting
• Drifting
• Occlusal disharmony:
leads to discomfort,
pain or damage to
TMJ
Crown def/ retention and convergence
Crown:a cemented extracoronal restoration covering the
outer surface of a prepared tooth.
• “Sleeve” retention
• Slight convergence of opposing walls
• “Path of insertion”
Partial veneer crown def/ retention
Partial veneer crown: an extracoronal restoration covering a portion of the clinical crown
• “Sleeve” retention with additional internal retentive features= Grooves
intracoronal Cemented
Restorations
inlay and onlays
•Inlay def/retention
•Inlay: a cemented intracoronalrestoration is fabricated indirectly and cemented into the prepared cavity of the tooth.
“Wedge” retention: slight divergence of opposing internals walls.
onlay def
•Onlay:an inlay modified with an occlusal veneer (replacing 1 or more
cusps).
Fixed Dental Prosthesis (FDP or FPD)
Dental prosthesis replacing one or more missing teeth which is
cemented/ rigidly attached to remaining teeth (or implants).
portions of bridge labeled
Steps in Implant Dentistry
•Single Crown or FDP attached to an osseointegrated implant(s)
Elements of Fixed Prosthodontics Diagnosis
(Fixed Prosthodontics Work-up)
• Patient History
• TMJ and Occlusal Evaluation
• Intraoral Examination
• Diagnostic Casts
• Diagnostic Waxing
• Custom Trays, Matrix for Interim Restorations
• Radiographic Evaluation
• (Esthetic Analysis)
pt history elements
• Medical History
• Dental History
• Chief Complaint
Intraoral Examination: Periodontal Condition, what to look at?
•Plaque – where and how much
•Attached gingiva
•(3mm - abutments)
•Inflammation
•BoP / Pockets
•Gingival architecture
•Mobility
TMJ / Occlusal Evaluation: joints, mm, pain, physiologic health?
• Joints• Sounds; opening limitations / deviations
• Muscles of mastication• Palpation of extraoral and intraoral muscles of mastication
• Assessment of pain•Type and origin of pain
• Determination of the presence or absence of physiologic health.
Normal (treatment to maintain occlusion)
Dysfunctional (improvement / restorations?)
intraoral Exam: Evaluation of Occlusion, what to look for
presence and location of caries
• Previous restorations and prostheses
• Evaluation of the occlusion
• Relationship of spaces, if more than one
• Bony defects
• Health of tissues
• Wear facets
• Occlusal prematurities; interferences; buttressing bone
• Difference between CRCP (CO) and MIP
• Existence and amount of anterior guidance
• Occlusal Scheme
• Canine Guidance
• Group Function
• Bilateral Balance
Diagnostic Casts
Diagnostic Casts
• Accurate representation of dental arches
• Mounted on a semi-adjustable articulator with a facebow transfer
confirm occlusal prematurity intraoral exam / plan for adjustment and results
provide information for diagnosing problems and arriving at a treatment plan
Patient communication:
Patient communication:
Determine compromises and expected results.
