Premium
Accuracy assessment of computer‐assisted flapless implant placement in partial edentulism
Author(s) -
Van Assche N.,
Van Steenberghe D.,
Quirynen M.,
Jacobs R.
Publication year - 2010
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/j.1600-051x.2010.01535.x
Subject(s) - edentulism , medicine , implant , dentistry , orthodontics , cone beam computed tomography , absolute deviation , cone beam ct , computed tomography , mathematics , surgery , statistics
Van Assche N, van Steenberghe D, Quirynen M, Jacobs R. Accuracy assessment of computer‐assisted flapless implant placement in partial edentulism. J Clin Periodontol 2010; 37: 398–403. doi: 10.1111/j.1600‐051X.2010.01535.xAbstract Aim: To assess the accuracy of implants placed flapless by a stereolithographic template in partially edentulous patients. Material and Methods: Eight patients, requiring two to four implants (maxilla or mandible), were consecutively recruited. Radiographical data were obtained by means of a cone beam or a multi‐slice CT scan and imported in a software program. Implants ( n =21) were planned in a virtual environment, leading to the manufacture of one stereolithographic template per patient to guide the implant placement in a one‐stage flapless procedure. A postoperative cone beam CT was performed to calculate the difference between virtual implant ( n =21) positions in the preoperative planning and postoperative situation. Results: A mean angular deviation of 2.7° (range 0.4–8, SD 1.9), with a mean deviation at the apex of 1.0 mm (range 0.2–3.0, SD 0.7), was observed. If one patient, a dropout because of non‐conformity with the protocol, was excluded, the angular deviation was reduced to 2.2° (range 0.6–3.9, SD 1.1), and the apical deviation to 0.9 mm (range 0.2–1.8). Conclusion: Based on this limited patient population, a flapless implant installation appears to be a useful procedure even when based on accurate and reliable 3D CT‐based image data and a dedicated implant planning software.