2 - Setting and Selectin Teeth on Interim/Immediate Dentures, (Lab 2) Setting teeth on MX Interim Denture Flashcards
for anterior teeth selection:
mode = ___ + ___
form + size
what are different anterior teeth forms
square, tapering, ovoid
what determines the size of anterior teeth selection
central width, central length, and anterior 6 teeth width (canine to canine distance)
how to select anterior teeth for interim/immediate denture
- pre extraction records/casts
- photographs
- camo casts
- pre extraction facial profile
- existing prosthesis
what dentures do you make with BLUELINE TEETH
- final complete dentures
- immediate dentures
- metal framework partials
what dentures do you make with IVOSTAR TEETH
- interim complete dentures
- interim partials
shade is on what side of teeth card? mold is on what side?
shade = left
mold = right
what do you do if natural tooth arrangement is not esthetic
- reestablish correct incisal edge position, dental midline and esthetically ideal tooth alignment
- cut away stone teeth and set denture teeth on ONE SIDE FIRST then complete other side
- selective extraction for esthetic try-in if necessary
to preserve incisal edge position and tooth angulation, prior to removal of stone teeth, you should use the boley gauge to mark a horizontal line ___ mm apical to incisal edge of each tooth
15 mm
what are the occlusal objectives for creating interim/immediate dentures1
- centric (bilateral even centric contacts)
- eccentric (fully balance occlusion during lateral/protrusive movenents)
where do you place posterior palatal seal
at posterior vibrating line and anterior butterfly line
purpose of posterior palatal seal
1/2. enhance retention and maintain peripheral seal of mx denture base by compensating for (1) polymerization shrinkage and (2) minor denture base functional movements
3. smooth transition from denture to soft palate
4. prevent food entrapment
5. strengthen denture
6. comfort to dorsum of tongue
how to identify posterior palatal seal area
- draw line 1 mm anterior to posterior extension of denture
- draw second line anterior to first in butterfly pattern
the bead seal should not extend where
tuberosity of torus
how many working days to create interim/immediate denture
10 working days
after wax boil-out stage, you should do what before packing
round off sharp interproximal points
steps for rehydrating denture
- 2 hours in low pressure container
- soak in water for 72 hours
what can be used to make sure the extraction surgery will fit the denture
- silicone cast replica
- clear surgical stent
why use clear surgical stent for immediate denture
- guide if tuberosity/exostosis reduction is necessary
- give previous before the delivery
what is used to check the adaptation of the denture bearing surface
pressure indicating paste
what is the seating, adjusting, and delivery of the prosthesis
insertion
when dismissing patient from oral surgery from extractions, the denture must remain in the patient mouth at all times for how many hours
first 24 hours
what to do if your patient comes in looking like this for 24 hour check
THIS IS ACTUALLY NORMAL!
what are the problems that each of the arrows depict
orange = under extension of flange
blue = ulcer near canine area
black = buccal frenum - denture too high, attachment needs mroe space
what is applied to improve the fit of the denture before extraction healing is completed
soft liner
how much space is needed for soft liner
1-2 mm
how often do you replace soft liner
every ideally 2-4 weeks but normally 1-2 months
how often do you replace tissue donditioner
7-10 days
patient should not soak denture into what with a tissue conditioner or soft liner?
efferent cleaning solutions - will cause liner to bubble
what is this:
displays plastic behavior
adapt to changing shape of tissues (first couple days)
less viscous
higher flow characteristics
may need to be changed 7-10 days, sooner if acute problems (2-3 days)
tissue conditioner
indications for tissue conditioner
Indications: tissue mobility, IPH,
Candida infection, used as a functional
impression material, inflammation
or
irritated tissues, to help better adapt an
interim/immediate denture
you should delay use of tissue conditioner for how long? why?
at least 1 week because tissue is changing so rapidly
what is the tissue conditioner used at creighton
coe comfort
should you remove tissue conditioner that extends INTO the extraction sockets?
YES!
what is this:
displays less plastic behavior
than tissue conditioners
lesser flow characteristics
lasts 1-2 months
resilient soft liner
indications for using reslilient soft liner
when tissue is more stable (less inflammation) approximately one month after extractions
what to do when prosthesis w/ soft liner is not in mouth
soak in water - do not use effervescent cleaneres
what consistency do you place the denture with liner into the mouth
honey consistency
do you remove buccal bone on patient cast when creating dentures on patient in clinic?
NO! this is only done because we are working on typodont. never done in clinic because that means bone removal on patient
posterior teeth _ shimstock
anterior teeth _ shim
pin should be at ___
hold, drag, 0
what does it mean to have cross arch bilateral balance
in r lateral, l lateral, and protrusive all movements incisal edges and cusps should touch
