Treatment Planning for Fixed Prosthodontics Flashcards
what do you look at with occlusion
incisor relationship
excursions of mandible
canine guidance
group function
what part of treatment planning does fixed pros come into
reconstructive
why would you place veneers
improve aesthetics
change teeth shape and/or contour
correct peg shaped laterals reduce or close proximal spaces and diastemas
align labial surfaces of instanding teeth
what is the gurel minimal preparation technique
wax up
stent
intra oral mock up
preparation into mock up
when would you not use veneers
poor OH
high caries rate
interproximal caries
gingival recession
root exposure
high tip lines
if extensive prep needed
labially positioned, severely rotated and overlapping teeth
extensive TSL/insufficient bonding area
heavy occlusal contacts
severe discolouration
why would you use inlays/onlays
tooth wear
fractured cusps
restoration of root treated teeth
replace failed direct restorations
minor bridge retainers
when would you not use inlays/onlays
active caries and periodontal diseases
time
cost
why would you use a crown to restore teeth
protect weakened tooth structure
improve/restore aesthetics
use as a retainer for fixed bridge
when indicated by design of RPD
restore tooth function
when would you not restore with crowns
active caries and periodontal disease
more conservation options available
lack of tooth tissue for preparation
unable to provide post and core
unfavourable occlusion
what are the principles of crown preparation
preservation of tooth structure
retention and resistance
structural durability
marginal integrity
preservation of periodontium
aesthetic considerations
why would you preserve sound tooth
to avoid weakening tooth structure and damaging pulp
what does under preparation result in
poor aesthetics
over built crown with periodontal and occlusal consequences
restorations with insufficient thickness
what does overpreparation result in
pulp and tooth strength being compromised
what does retention prevent
removal of restoration along path of insertion or long axis of tooth preparation
what does resistance prevent
dislodgement of restoration by forces directed in an apical or oblique direction and prevents any movement of restoration under occlusal forces
