replica dentures Flashcards
indications for replica technique
history of successful denture wear
no major pathological changes
no major design changes required
what lines the replica block
shellac base
what surfaces must be impressed
fit and polished surface
what material is used for the imp
putty
what is placed on trays before putty
adhesive
what surface of the denture is placed in the putty
polished surface
what are placed in the side of the putty
location notches
what is placed ontop of the putty prior to putty on fit surface
separator - vaseline
what is used to fix faults in the impressions
light bodied material
what can be added to underextended denture base prior to replication
greenstick
what is used for the base of a replica denture to make special tray
shellac
when is occlusion recorded in complete denture work?
AFTER 2nd imps
what is used to take a wash impression
light bodied silicone e.g. rapid liner or aquasil
what happens during occlusion stage
recording vertical and horizontal jaw relations
prescription of tooth position
prescription of arch form
what are you assessing with vertical jaw relationship
presence of freeway space
what are you assessing with horizontal jaw relationship
reproducible path of closure
what should freeway space measure
2-4mm
FWS
RVD-OVD
How do you measure how ‘tall’ dentures should be
RVD-FWS
Where do you apply bite reg paste
premolars and molars
what should the occlusal plane be parallel to?
ala-tragal line
what do you use to measure occlusal plane
fox’s guide plane
what would you use to correct occlusal plane
1mm wax onto block
where should incisal level sit?
1-2mm below upper lip at rest
where should incisal plane sit
inter-pupillary line
what is the position when mandible raised from rest position by balanced muscle activity and tooth contact is made
muscular position
jaw relationship in which max occlusal contact occurs
intercuspal position
what 2 positions should coincide in denture wearers
muscular and intercuspal
what could you adjust to result in the mandible drooping back to a more retruded position
increase OVD
What position is reproducible
retruded contact position
retruded contact position
condyles at most retruded point in joint cavities
point of first tooth contact on the retruded arc of closure
what must you prescribe for the try-in stage
tooth shade mould and arrangment
articulator
