Computer-Aided Crown Design Using Digital Scanning Technology for Immediate Postextraction Single-Implant...

Area of Science:

• Dental Implantology
• Prosthodontics
• Digital Dentistry

Background:

• Conical abutments with antirotational features (Acuris abutment) are a novel approach for single implant restorations.
• These conometric abutments utilize the coping-abutment system's retentive force, eliminating the need for cement or screws.
• Detachment of the provisional crown in immediate restorations requires overcoming this retentive force.

Purpose of the Study:

• To describe a digital workflow for computer-guided implant placement and restoration using conical indexed abutments in postextraction sites.
• To demonstrate the use of digital scanning technology for precise pre-operative crown fabrication.
• To simplify the provisional crown relining process and reduce intraoperative time.

Main Methods:

• Utilizing digital scanning technology for virtual planning of computer-guided implant placement.
• Importing scan data of matrix and patrix abutments from the definitive cast into CAD software.
• Preoperatively milling a provisional crown designed for a perfect fit onto the conometric indexed abutment in postextraction sites.

Main Results:

• A streamlined workflow for immediate provisional restorations with conical indexed abutments was established.
• The technique simplifies the process of relining provisional crowns onto the conometric abutment.
• A reduction in intraoperative time was achieved through pre-operative crown milling.

Conclusions:

• Digital scanning and CAD/CAM technology enable precise pre-operative fabrication of provisional crowns for immediate restorations.
• The described technique simplifies the management of conometric abutments in postextraction implant sites.
• This digital workflow enhances efficiency and predictability in immediate implant restorations.