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A modified scan technique for multiple abutment teeth using the trim and lock function
Marco Valenti1, Alessandro Valenti1, Davide Cortellini2
1Private Practice, Via G. B. Damiani, 5, Pordenone 33170, Italy.
Journal of Dentistry
|December 25, 2022
Summary
This new digital scanning protocol uses software tools to scan multiple teeth separately. It simplifies full-arch intraoral scanning and improves treatment efficiency for complex dental cases.
Area of Science:
- Digital dentistry
- Intraoral scanning technology
- Prosthodontics
Background:
- Accurate digital impressions are crucial for complex dental restorations.
- Scanning multiple abutment teeth presents challenges in managing gingival displacement and maintaining margin visibility.
Purpose of the Study:
- To introduce a novel protocol for digital scanning of multiple abutment teeth.
- To utilize specific software tools for improved intraoral scanning accuracy.
Main Methods:
- A reverse workflow technique was employed with interim restorations in place.
- Individual abutment teeth were scanned sequentially after trimming and locking adjacent teeth from the scan.
- Gingival displacement was managed by removing retraction cord or interim restoration for only one tooth at a time.
Main Results:
- The described technique simplifies the scanning of multiple abutment teeth.
- The use of trim and lock software tools prevents gingival crevice closure.
- Preparation margins remain visible and uncontaminated during the scanning process.
Conclusions:
- Splitting scans for multiple abutment teeth enables reliable 3D acquisition of each finish line.
- This technique simplifies full-arch intraoral scanning.
- The protocol enhances overall treatment efficiency in complex restorative cases.
