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Accuracy of handpiece-guided implant surgical systems: A scoping review
Zulekha Patel1, Sivaranjani Gali2, Karishma Jagadeesh3
1Postgraduate student, Department of Prosthodontics and Crown & Bridge, Faculty of Dental Sciences, M.S. Ramaiah University of Applied Sciences, Bangalore, India.
Statement Of Problem:
Conventional surgical guides pose challenges in patients with limited mouth openings, restricting coolant flow and risking surface contamination from sleeves. Although alternative implant guide designs such as handpiece guides have been developed, a scoping review of their performance is lacking.
Purpose:
The purpose of this scoping review was to identify studies reporting the various designs of handpiece implant guides, understand their design features, method of fabrication, and seating accuracy, with their advantages and limitations, summarize the literature evidence on the accuracy of implant placement, and recognize research gaps in the field of handpiece-guided implant surgery.
Material And Methods:
A literature search was conducted in the PubMed, Scopus, Cochrane, EBSCO, and Google Scholar electronic databases for English-language publications. The types of articles considered eligible were clinical reports, technical notes, in vitro studies, and experimental or interventional studies on handpiece-guided surgical guide designs.
Results:
Of the 350 studies retrieved based on the search strategy and inclusion criteria, 14 were selected. Eight were clinical studies, and 6 were clinical reports or technique articles. The guide systems consisted of 2 commercially available surgical guides, StentCAD and Ingis, and 2 other designs of handpiece attachments. The angular deviations in handpiece-guided systems ranged from 2.5 to 5.0 degrees, coronal deviations at the shoulder from 0.52 to 1.70 mm, and apical deviations from 0.7 to 1.99 mm over free‑hand surgery (angular deviation of 1.40 to 7.36 degrees, coronal deviation of 1.25 to 2.77 mm and apical of 2.10 to 2.91 mm) and fully guided implant systems (angular deviation of 0.32 to 3.36 degrees and coronal deviation of 0.54 to 2.34 mm and apical of 0.90 to 2.53 mm).
Conclusions:
The handpiece guide systems consisted of 2 commercially available surgical guides, StentCAD and Ingis, and 2 other designs of brass-based irrigation and tooth-template guides. The accuracy of implant placement of handpiece guides was comparable with that of freehand and fully guided implant systems.
