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Gert Oxby, DDS
General Practitioner
Lysekil, Sweden
Summary
A 59-year-old woman had a fractured bridge and was submitted for implant treatment in the left maxillary arch. The treatment procedure included one-stage surgery and early loading with a final restoration.
A Cresco™ screw-retained bridge was chosen, since it guarantees a passive fit — an absolute prerequisite when working with early or immediate loading protocols. The Cresco method also allows for compensation in cases with implants in very angulated positions. Besides the esthetic advantage, sinus elevation procedures and/or the need for bone substitutes can therefore be eliminated.
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1. Three Astra Tech implants were placed. The implant in position 23 was installed in fresh extraction socket.
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2. On day 4, post-implant surgery sutures were removed. Inserts from Cresco API™ kits were installed. Note the excellent soft tissue status thanks to the Astra Tech Conical Seal Design™.
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3. On the same occasion, impression screws used to install the inserts were reused to mount the impression elements from the Cresco API kits. The impression was taken, as well as an occlusion index. To support soft tissue healing, gingival
formers were installed.
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4. Final construction ready for installation. The Cresco method offers flexibility in terms of material usage, angulations of bridge screw channels and positioning of access holes. The Cresco Precision Method creates a perfect passive fit of
the construction.
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5. On day 17 post-implant installation, the final construction was attached. Vaseline is used in the threads to reduce friction and ensure optimal torque control.
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6. Final construction 4 years after installation. The soft tissue is still healthy and the marginal bone level has been maintained.
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7. X-ray at 4-year follow-up.
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