Model-less implant prosthetic work with intraoral scanning of encoded healing abutments

Dr. Chonghwa Kim 김종화_

Author
Dr. Chonghwa Kim, DDS, MS

Director of Global Academy of Osseointegration
Seoul, Korea



Patient information: 61 years old / male
Treatment plan: Neo IS3 Active implants, Titanium custom abutments, and splinted monolithic zirconia crowns
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pre-op panoramic view

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Encoded healings in place for scanning 3 implants in Max. right quadrant

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1st scan of maxilla focusing on the soft tissue around implants

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2nd scan is focused on encoded healing abutments to obtain information of the implant position.

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Intramural scan data of encoded healings

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Library data of encoded healings

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Merging process between intraorally scanned encoded healing and library data

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You can ensure the scan quality of the encoded healings by designating the area to obtain STL file.

Screen Shot 2019-12-24 at 10.10.45 AM
Enlarged view of the encoded healings. Blue circle is the scan region of the encoded healing.

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Full contour wax-up to preview final restorations

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Full contour wax-up to preview the overjet of the final restorations

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The CAD design of the abutments can be viewed thru the full wax-up and modified to allow space for final restoration.

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CAD designs of custom abutments are completed.

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The detailed view of the CAD design and fabricated custom abutment

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The scan data of milled abutment are merged onto the original CAD design for verification.

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This process often shows a discrepancy between the scan data and the CAD design of abutment.

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Outline of the milled abutment is in gray and the CAD design in blue. In most cases, those two lines do not coincide completely.

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Final custom abutments and monolithic zirconia crowns

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The custom abutments are seated and tightened to recommended torque.

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The custom abutments are seated and tightened to recommended torque.

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The final crowns are cemented after minimal proximal and occlusal adjustments.

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The final crowns are cemented after minimal proximal and occlusal adjustments.

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Occlusal contact points coincided closely between the CAD design and the final crowns.

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Occlusal contact points coincided closely between the CAD design and the final crowns.

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Post-op panoramic view

The detailed step of how to do model-less implant prosthetic work.

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