J Korean Acad Prosthodont.  2021 Oct;59(4):478-486. 10.4047/jkap.2021.59.4.478.

Computer-guided implant surgery and immediate provisionalization by chair-side CAD-CAM: A case report

• Hyun SW
• Leesungbok R
• Lee SW
• Cho YE

• KMID: 2521842
• DOI: http://doi.org/10.4047/jkap.2021.59.4.478

Abstract

This report demonstrates a method of generating a chair-side and computer-aided template for implant surgery based on the Top-Down and restoration-driven concept. Compared to the traditional CAD-CAM process which requires multiple steps to be taken between dental clinic and laboratory, this alternative procedure, VARO guide system (VARO Guide, CAD, Pre-Guide, VARO-mill, NeoBiotech, Seoul, South Korea) enables accurate and patient-friendly implant surgery as well as immediate provisional restoration in a single visit. First, bite-registration at centric jaw relation and CBCT were taken using the Pre-Guide. The CBCT data was then reorganized directly through the chair-side CAD, and we could determine the most appropriate 3-dimensional position of implant. The STL file was extracted and put into the chair-side CAM (VARO-mill) to fabricate a VARO. This surgical guide allowed the implants to be accurately positioned into the planned sites within an hour.

Keyword

CAD-CAM; Chair-side immediate restoration; Patient-friendly; Pre-Guide; Top-Down; Restoration-driven; VARO Guide