rpd 009 steps of cast rpd making
TRANSCRIPT
STEPS OF FABRICATING STEPS OF FABRICATING CAST METAL ALLOY CAST METAL ALLOY REMOVABLE PARTIAL REMOVABLE PARTIAL DENTURES (RPDs)DENTURES (RPDs)
Fabricating Cast RPDsFabricating Cast RPDs
FABRICATION STEPS OF CAST RPDs
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
First the metal framework for RPD fabricated by:- Lost-wax casting technique.
Following are the stages for Cast RPD:Preliminary Impression / MMR / study cast.Preliminary surveying & occlusal analyses of cast.Selection of RPD design.Tooth-prep work / final impression & master casts.Final surveying & block-out work on master cast.FWK outlining on master cast.Duplication of the prepared master cast.Wax hardening of the refractory cast.Wax / plastic patterns used to lay-down FWK.Wax-pattern on refractory cast sprued.
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
FWK wax pattern invested in a casting ring.Wax pattern burnt-out to get mould for FWK.Mould heat-soaked to expand (casting shrinkage).Molten-metal alloy forced to fill mould cavity.Cast FWK recovered from casting ring.Sprues cut.Fwk finished / smoothened / polished.FWK tried on cast & in mouth.ACIP if necessary.MMR records if needed.Trial of waxed-up RPD in mouth.Processing / finishing RPD.RPD fitted in mouth.
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
CAST RPD FWK STAGES
CAST RPD FWK STAGES
CAST RPD FWK STAGES
Laser welding unitSteam
cleaning unit
CAST RPD FWK STAGES
STEPS OF CAST REMOVABLE PARTIAL DENTURES (RPDs)
On Finishing, Smoothing & Polishing:- Fwk is first tried on master cast &:- then in the mouth.
Recording of ACIP if necessary.
Registering MMR if needed.
Trial of waxed-up RPD in mouth.
Processing / finishing RPD.
Fitting RPD in mouth.
RPDs with CAST-metal alloy FWK