title: Accuracy of a computer-aided implant surgical technique.
abstract: The purpose of this in vivo retrospective study was to evaluate the accuracy of a computer-designed stereolithographic surgical guide. One hundred eleven implants were placed in 10 patients. Pre- and postoperative computed tomography images were compared using specific software. Global, angular, depth, and lateral deviations were calculated between planned and placed implants. Mean global deviations between planned and placed implants at the coronal and apical aspects were 1.52 mm (range, 0.13 to 3.00 mm) and 1.97 mm (range, 0.34 to 4.23 mm), respectively, while the mean angular deviation was 4.68 degrees (range, 0.10 to 15.25 degrees). This study highlighted a reasonable mean accuracy with relatively high maximum deviations between the postoperative position and the preoperative plan. These results should serve as a warning for the clinician if implants are placed near vital structures.
authors.affiliation: Department of Oral Sciences, School of Dentistry, Sapienza University of Rome, Rome, Italy. michele.cassetta@uniroma1.it
authors.forename: Michele
authors.initials: M
authors.lastname: Cassetta
authors.forename: Luigi V
authors.initials: LV
authors.lastname: Stefanelli
authors.forename: Matteo
authors.initials: M
authors.lastname: Giansanti
authors.forename: Alfonso
authors.initials: A
authors.lastname: Di Mambro
authors.forename: Sabrina
authors.initials: S
authors.lastname: Calasso
mesh_terms: D019412:Anatomy, Cross-Sectional / Q000706:statistics & numerical data; D017076:Computer-Aided Design / Q000706:statistics & numerical data; D054893:Cone-Beam Computed Tomography / Q000706:statistics & numerical data; D003758:Dental Implantation, Endosseous / Q000295:instrumentation / Q000706:statistics & numerical data*; D015921:Dental Implants; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000706:statistics & numerical data; D021621:Imaging, Three-Dimensional / Q000706:statistics & numerical data; D007575:Jaw, Edentulous / Q000534:rehabilitation / Q000601:surgery; D007576:Jaw, Edentulous, Partially / Q000534:rehabilitation / Q000601:surgery; D008297:Male; D008875:Middle Aged; D010347:Patient Care Planning; D011862:Radiography, Panoramic / Q000706:statistics & numerical data; D012189:Retrospective Studies; D025321:Surgery, Computer-Assisted / Q000706:statistics & numerical data*; D036542:Tomography, Spiral Computed / Q000706:statistics & numerical data; D014584:User-Computer Interface
chemical_list: D015921:Dental Implants