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Resin Bonded
Retainer {R.B.R.-Maryland Bridge} framework replacing #8..Note the extraction site has healed leaving
a deep saddle area for the pontic.
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Duralay
pattern resin was applied and refined on the master cast. Once the fit an P.O.I. were established, the pontic was waxed,
sprued and cast in Rexillium III alloy.
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Finished porcelain
pontic
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Lingual view of
R.B.R. Metal was labially reduced for optimal esthetics while maintaining strong connectors to the adjacent retentive
"wing" elements. The tabs seen on all frameworks are a feature that allows the ceramist to work conveniently
with the case..they are removed and the metal smoothed and polished to a high shine before delivery.
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Substrates in situ on laboratory-prepared 3I Gingihue posts.
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PFM crowns on 3I Gingihue posts. The posts were prepared in
the lab with anti-rotational and retentive features incorporated into them for enhanced retention and positive insertion.
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Adjusted and refined abutment posts on master cast with soft
tissue removed. The divergence of the implant fixtures can be seen here. The posts were surveyed to obtain a proper
path of insertion for the crowns. The posts were then impressed in polyvinyl impression material, and dies were made
to fashion the substrates as seen in the foreground.
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Posts are impressed for stone dies that are then used for waxing
the substrates. The metal posts will confirm the integrity of the waxups, but the wax flows better on the stone
dies since the metal acts as a heat sink.
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