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.
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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.
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Final cementation of two all-ceramic crowns built on Bicon sintered aluminum-oxide sleeves.
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