Restoration of two mandibular molars for all-ceramic crowns. This case demonstrates the use of an abutment shoulder gauge for predictable aesthetic subgingival margin placements.
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Healed tissue at patientÂs second visit showing mesially modified temporary abutment two months after one stage surgical implant placement.
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Mesial soft tissue sulcus demonstrates how modification of a temporary abutment can create the desired size and shape of the papillae. The 3.0mm diameter implant wells demonstrate the 360° universal positioning of Bicon abutments.
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Seated abutment shoulder gauge facilitates the selection of a shouldered abutment with a predictable subgingival margin.
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5.0mm wide x 2.0mm high x 10° angle shouldered abutment being inserted into the implant well.
5.
Two 5.0mm x 2.0mm x 10° shouldered abutments tapped into their implant wells.
6.0mm emergence cuff being snapped onto acrylic sleeve.
8.
Assembled emergence cuff and sleeve to be used for temporary crown fabrication and occlusal registration.
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Assembled parts in place for incorporation into temporary crowns. Alternatively a one-piece sleeve could have been used for same purposes.
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Provisional crowns incorporating the assembled emergence cuffs and sleeves.
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Occlusal registration with assembled parts and acrylic pattern resin.
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10.0mm Bicon aluminum oxide sleeve being seated onto shouldered abutment.
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Aluminum oxide sleeves being used to make a transfer impression. Alternatively the one-piece or two-piece acrylic sleeve could have been used and would have provided a more predictable and reliable transfer.
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5.0mm stealth abutment analog being seated into the aluminum-oxide sleeve in the transfer impression.
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Intra-operative radiograph showing final cementation of mesial crown and non-seated distal crown. Excessive interproximal contact or a different orientation of the intra-oral abutment from that of the abutment analog may be the cause for failure of the crown to seat.
16.
Final cementation of two all-ceramic crowns built on Bicon sintered aluminum-oxide sleeves.
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