Digital Workflow for Double Complete Arch Zirconia Prostheses Utilizing a Novel Scan Body

Area of Science:

• Dentistry
• Digital Dentistry
• Prosthodontics

Background:

• Complete arch fixed implant restorations require precise digital workflows.
• Accurate superimposition of digital scans is crucial for complex prosthodontic cases.
• Traditional methods can be challenging due to the absence of stable intraoral landmarks.

Purpose of the Study:

• To present a complete digital workflow for fabricating complete arch fixed zirconia implant restorations.
• To demonstrate a novel technique for accurate digital model superimposition.
• To overcome challenges associated with limited intraoral landmarks in digital dentistry.

Main Methods:

• Utilized an intraoral scanner and a double digital scanning technique.
• Employed a novel scan body and impression pin for accurate data capture.
• Digitally designed, fabricated, and verified prosthesis prototypes before definitive fabrication.

Main Results:

• Achieved accurate and reproducible superimposition of Standard Tesselation Language (STL) files.
• Successfully fabricated and delivered definitive zirconia prostheses using the digital workflow.
• Demonstrated the technique's applicability in both arches, regardless of landmark stability.

Conclusions:

• The presented digital workflow enables precise fabrication of complete arch fixed zirconia implant restorations.
• The novel scanning technique and components facilitate accurate superimposition of digital models.
• This workflow offers a reliable solution for complex implant prosthodontic cases, even with limited intraoral landmarks.