Fixed Prosthodontics Flashcards
Week 3/4
fixed prosthodontics area of dentistry
specializes in the replacement of missing teeth with cast prosthesis that are permanently cemented in place
the goal of fixed prosthodontics
to restore function and aesthetics to the patient’s dentition and improve overall oral health
Indications for fixed prosthetics
Healthy periodontium
Root canal
Extensive decay
Bridges
Proper patient motivation
Contraindications for fixed prosthetics
Diseased/missing tissue
Abutment teeth not present/suitable
Poor OH Habits
Finance issues
Poor patient commitment
Recommended for a client with missing or unsuitable abutments instead of fixed prosthodontics
removable prosthodontics or implants
Indirect restorations are also known as…
cast restorations
Indirect restorations + examples?
restorations that are constructed outside the mouth
inlays, onlays, crowns, fixed bridges
Cast restoration resembling a class II restoration
Inlay
Usually covers the proximal and occlusal surfaces
Inlay
Cast restoration resembling a multi-surface restoration
Covering the proximal, most of/entire occlusal, and cusp.
Onlay
best material for cast restorations such as onlays and inlays as it doesn’t corrode, oxidize, absorb oral fluids and closely mimics the hardness of natural teeth
16k alloy gold
“fake teeth” made of composite resin or porcelain, primarily for aesthetic purposes.
veneers
2 types of veneers
- Direct
- Indirect
Veneer placed directly in the mouth using composite resin material
Direct veneers
veneer fabricated in the lab, made of porcelain
Indirect veneers
While direct veneers are usually made using composite resin, they can also be made out of porcelain. True or False
false
agent that may be placed before the cementation of porcelain veneers to block out any underlying colour.
Opaquer
types of crowns
Full crown
Three-quarter crown
Porcelain Fused to Metal (PFM) crown
Porcelain jacket crown
crown typically used for severely decayed teeth
full crown
fixed prosthetic used when 1 or more teeth are missing in the same quadrant
fixed bridge
component of a fixed bridge that describes the number of teeth involved
unit
component of a fixed bridge that is the part/artificial tooth that replaces the missing tooth
pontic
component of a fixed bridge that serves as the support for replacement
abutment
aka “maryland bridge”
known for poor retention
resin-bonded bridge
typical working time for a single crown.
2 weeks
Placement of a cast restoration typically requires a minimum of ____ appointments
2
when should shade selection be performed
before anesthetic is administered
designed to provide a smooth, strong junction of the edges of the casting with the surface of the tooth
gingival margins
tooth preparation
when the dentist reduces the height and contour of the tooth
alternative names for the gingival margins.
bevel chamfer shoulder
Retention aids for crowns indicated when the coronal portion of a tooth is extensively decayed or fractured
core buildup
retention pins
post-and-core
retention aid placed BEFORE the core buildup.
retention pins
retention aid that can only be used on teeth that have been endodontically treated.
post-and-core
made from an acrylic pattern and fabricated by a dental lab technician.
cast post
all teeth require pin retention for a core buildup. True or False
false
what is a pre-fabricated post made of?
titanium and titanium alloys
supports the cast crown and provides a larger area of surface retention
core buildup
May be necessary to add strength to the core buildup for the crown-placed before core build up
retention pins
what is the purpose of gingival retraction?
to displace gingival tissue prior to a final impression
involves placing gingival retraction cord, also known as packing cord, into the sulcus surrounding the tooth
chemical retraction
solution used to control bleeding that a gingival retraction cord is dipped into
hemostatic solution
retraction cord that does not contain chemicals and retracts the tissues only by force
non-impregnated
buffered solution in an impregnanted retraction cord that controls bleeding and causes the desired provisional shrinkage of tissues
10% aluminum chloride
chemical in impregnated retraction cords that may be contraindicated for clients with cardiovascular disease.
vasoconstrictor
May be necessary if hypertrophic gingival tissue interferes with the preparation and placement of a fixed restoration also known as “crown lengthening”.
surgical retraction
performed with a special electric tip that quickly cauterizes away excess tissue and controls bleeding during surgical retraction
electrosurgery
A protective temporary tooth covering that is placed after a tooth has been prepared and the final impression obtained
Used for patient comfort
Provisional coverage
Rationales for provisional coverage
Reduction of sensitivity
Maintenance of function and esthetics
Protection of preparation margins
Prevention of shifts of adjacent teeth
Is it normal for a patient to experience slight temperature sensitivity after the crown has been placed? Yes or No
Yes
what oral hygiene tools are great for the self care of fixed prosthetics
floss threader
sulcabrush
end-tuft brush
CAD/CAM is the acronym for _______ that can design the anatomical features, size, and shape of a tooth restoration.
Computer-Aided Design/Computer Aided Manufacturing
