Journal of Oral and Maxillofacial Surgery

Volume 62, Supplement 2, September 2004, Pages 116-119

Purpose

The purpose of this study is to assess the accuracy of the navigation provided by the Image Guided Implantology system (DenX Advanced Dental Systems, Moshav Ora, Israel), which was designed to guide the surgeon in the placement of dental implants.

Navigation surgery for dental implants: Assessment of accuracy of the image guided implantology system

Nardy Casap DMD, MD*, , , Alon Wexler DMD†, Nathan Persky PhD‡, Amir Schneider§ and Joshua Lustmann DMD *Lecturer, Department of Oral and Maxillofacial Surgery, Hebrew University-Hadassah, Faculty of Dental Medicine, Jerusalem, Israel †Instructor, Department of Prosthodontics, Hebrew University-Hadassah, Faculty of Dental Medicine, Jerusalem, Israel ‡Head of Research and Development, DenX Advanced Dental Systems LTD, Moshav Ora, Israel §Software Engineer, DenX Advanced Dental Systems LTD, Moshav Ora, Israel Associate Professor, Department of Oral and Maxillofacial Surgery, Hebrew University-Hadassah, Faculty of Dental Medicine, Jerusalem, Israel.

Materials and methods Seven jaw models incorporating special ceramic spheres were imaged by dental computerized tomography. The coordinates of these reference ceramic markers were calculated by the Image Guided Implantology and compared with their actual position coordinates as identified on the computed tomography image. Results The overall mean spatial navigation error was 0.35 ± 0.14 mm. The 1-tailed probability of any single measurement exceeding 0.75 mm was less than 0.003, and that exceeding 1 mm was less than 0.0001. Conclusion The Image Guided Implantology system provides highly accurate navigation with less than 0.73 mm error, which is acceptable in dental implantology. The accurate reporting of the exact position of the drilling bur should minimize the potential risk of damage to critical anatomic structures. The accurate intraoperative navigation allows the surgeon to precisely transfer the presurgical plan to the patient.

Article rédigé par le praticien le 06/07/2009