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Digital implant placement accuracy: a clinical study on a fully-guided flapless single-unit immediate-loading
Parsa Pirooz1, Faezeh Atri2, Paria Gholami1
1School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
Maxillofacial Plastic and Reconstructive Surgery
|May 17, 2023
Summary
This study assessed the accuracy of a fully-guided surgical template for single-unit implants, finding a mean angular deviation of 5.07° and linear deviation of 1.74 mm. Further research is needed for immediate loading protocols.
Area of Science:
- Dental Implantology
- Digital Dentistry
- Surgical Planning
Background:
- The DIONAVI protocol utilizes digitally designed, fully-guided surgical templates for flapless implant placement.
- Immediate loading of single-unit implants with prefabricated provisional restorations is a growing area of interest.
Purpose of the Study:
- To measure the accuracy of single-unit implant placement using a digitally designed, fully-guided surgical template with a flapless technique.
- To evaluate prefabricated provisional restorations and periodontal factors following immediate implant loading.
Main Methods:
- Virtual planning integrated intraoral scans and cone-beam computed tomography (CBCT) data.
- Fully-guided surgical templates and customized abutments were fabricated for flapless implant surgery.
- Implant positions were compared to virtual plans, and immediate loading outcomes were assessed at 3 months.
Main Results:
- Mean angular deviation was 5.07° ± 2.06°, and mean apical linear deviation was 1.74 mm ± 0.63 mm.
- Two of 14 implants failed within the first 3 months post-surgery.
- Occlusal level differences were evaluated for nine provisional restorations.
Conclusions:
- The DIONAVI protocol demonstrates measurable accuracy for guided implant placement, providing clinicians with expected deviation estimates.
- Further investigation into immediate-loading protocols and provisional restorations is recommended before widespread adoption.
