Bicon Dental Implants
Friday, November 21st 2008 7:38PM EDT
Porcelain Fused to Metal: Single Canine Eight Years Post
Restoration of a failed endodontically treated canine with a single Bicon implant with an eight-year post insertion evaluation.
     


1. Pre-operative radiograph of a failed endodontically treated canine.


2. Probing the socket of the extracted canine.


3. Bone graft in place prior to membrane placement.


4. Edentulous ridge prior to second stage abutment placement.


5. Non-shouldered abutment tapped into the well of implant. The Bicon abutment is treated with conventional prosthetic techniques as though it were a post and core restoration.


6. Buccal shoulder prepared intra-orally with a #1557 Great White carbide bur. Sharp carbides cut titanium effectively. Diamond burs do not.


7. Buccal shoulder prepared for porcelain margin. The remaining margins are knife or feather-edged. Healthy soft tissue usually negates the need for gingival retraction of buccal margins.


8. A conventional hydrocolloid impression for a stone die model. Use the same impression technique as you would for a crown for a post and core restoration


9. Stone die model for the fabrication of a porcelain-fused-to-metal crown using conventional intra-oral and laboratory techniques.


10. The metal casting checked for accuracy and occlusal registration prior to making a withdrawal impression for a soft tissue model.


11. Casting on soft tissue model prior to porcelain applications.


12. The crown was cemented with a minimal amount of permanent cement placed only on the cervical margin.


13. Post insertion radiograph.



14. Eight-year post insertion photograph.


15. Eight-year post insertion radiograph.
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