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
how do you create retention and resistance
taper
length of walls
path of insertion
grooves and slots
how do you improve retention
limiting number of paths of insertion
how do you achieve structural durability
occlusal reduction
functional cusp bevel
axial reduction
what are the types of finish line configurations
knife edge
bevel
chamfer
shoulder
bevelled shoulder
to help preserve the periodontium, what should margins of the restoration be like
smooth and fully exposed to cleansing action
placed where the dentist can finish them and patient can clean them
placed supragingivally or at gingival margin
why replace teeth with a bridge
aesthetics
occlusal stability
function
periodontal splinting
restoring occlusal vertical dimension
patient preference
why would you not replace teeth
damage to tooth and pulp
secondary caries
effect on periodontium
cost
failures
what are the types of bridge design
cantilever
fixed-fixed
adhesive/resin bonded
conventional
hybrid
fixed moveable
spring cantilever
what do you need to communicate to patients to ensure you get informed consent for fixed pros
invasiveness/reversibility
longevity and success rates
possible complications
time involved
costs
alternative options
what treatment performed
why it is necessary
consequences of not having treatment
what risks there are
alternative options
