J Korean Acad Prosthodont.  2024 Apr;62(2):157-164. 10.4047/jkap.2024.62.2.157.

Sinus floor elevation and implant-supported fixed dental prosthesis in the posterior area, with full-digital system: a case report

• Park GS
• Kim S
• Pyo SW
• Chang JS

• KMID: 2555592
• DOI: http://doi.org/10.4047/jkap.2024.62.2.157

Abstract

A variety of digital technologies are being used throughout the entire implant treatment process of diagnosis, surgery, impression, design, and fabrication of prostheses. In this case, using a digital surgical guide, sinus floor elevation was performed without complications, and the implants were placed in the planned position. After the healing period for osseointegration, CAD-CAM (Computer-aided design-Computer-aided manufacturing) customized abutments and provisional prostheses were delivered. While using the provisional prosthesis, occlusal change was observed. To transfer the intermaxillary relationship and abutment position that reflect occlusal change and axial displacement, double scanning and abutment-level digital impressions were taken. Abutment superimposition was used to capture the subgingival margin without gingival retraction. Then, the definitive prosthesis was designed and fabricated with digital system. We report a case applying digital system, to achieve the predictable result as well as the efficient treatment process from implant surgery to fabricating prosthesis in the posterior area.

Keyword

Abutment superimposition; Axial displacement; Digital dentistry; Double scanning; Occlusal change