Accuracy of implant treatment planning utilizing template-guided reformatted computed tomography.
OBJECTIVE
To evaluate the magnitude of error in transferring the planned position of implants from reformatted CT scans to a surgical template.


METHODS
The deviation between the position of the apex of the proposed implant in paraxial CT reformats and on the corresponding study cast was measured in 77 prospective sites in five maxillas and nine mandibles.


RESULTS
The transfer error was 0.6 (s.d. 0.4) mm in the maxilla and 0.3 (s.d. 0.4) mm in the mandible.


CONCLUSIONS
The transfer errors detected in this investigation are not clinically relevant. Other factors involved in transferring positional and angular measurements from reformatted CT to the surgical site may result in more significant errors.
Besimo
C E
CE
Department of Prosthodontics, School of Dentistry, University of Basel, Basel, Switzerland.
Lambrecht
J T
JT
Guindy
J S
JS
D003758:Dental Implantation, Endosseous / Q000295:instrumentation / Q000379:methods; D015921:Dental Implants; D003819:Denture Bases; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007575:Jaw, Edentulous / Q000000981:diagnostic imaging / Q000601:surgery; D007576:Jaw, Edentulous, Partially / Q000000981:diagnostic imaging / Q000601:surgery; D008334:Mandible / Q000000981:diagnostic imaging / Q000601:surgery; D008437:Maxilla / Q000000981:diagnostic imaging / Q000601:surgery; D003765:Models, Dental; D010347:Patient Care Planning; D011446:Prospective Studies; D011856:Radiographic Image Enhancement; D013223:Statistics as Topic; D014025:Titanium; D014057:Tomography, X-Ray Computed
D015921:Dental Implants; D014025:Titanium