Dentition planning for image-guided implantology

Pongracz, Ferenc; Bárdosi, Z; Szabó, László

doi:10.1016/j.ics.2004.03.040

Cited by 1 publication

(2 citation statements)

References 5 publications

(3 reference statements)

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“…However, it was inconvenient to use and there were possible errors during the fixation of the framework on the patient's face. Pongracz and his coworkers developed a software program, allowing intuitive treatment plans using 3D CT images 18. With the software, both virtual planning and virtual surgery were made possible.…”

Section: Introductionmentioning

confidence: 99%

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In-vitro study on the accuracy of a simple-design CT-guided stent for dental implants

et al. 2012

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PurposeAn individual surgical stent fabricated from computed tomography (CT) data, called a CT-guided stent, would be useful for accurate installation of implants. The purpose of the present study was to introduce a newly developed CT-guided stent with a simple design and evaluate the accuracy of the stent placement.Materials and MethodsA resin template was fabricated from a hog mandible and a specially designed plastic plate, with 4 metal balls inserted in it for radiographic recognition, was attached to the occlusal surface of the template. With the surgical stent applied, CT images were taken, and virtual implants were placed using software. The spatial positions of the virtually positioned implants were acquired and implant guiding holes were drilled into the surgical stent using a specially designed 5-axis drilling machine. The surgical stent was placed on the mandible and CT images were taken again. The discrepancy between the central axis of the drilled holes on the second CT images and the virtually installed implants on the first CT images was evaluated.ResultsThe deviation of the entry point and angulation of the central axis in the reference plane were 0.47±0.27 mm, 0.57±0.23 mm, and 0.64±0.16°, 0.57±0.15°, respectively. However, for the two different angulations in each group, the 20° angulation showed a greater error in the deviation of the entry point than did the 10° angulation.ConclusionThe CT-guided template proposed in this study was highly accurate. It could replace existing implant guide systems to reduce costs and effort.

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Section: Introductionmentioning

confidence: 99%

“…Pongracz and his coworkers developed a software program, allowing intuitive treatment plans using 3D CT images. 18 With the software, both virtual planning and virtual surgery were made possible. However, transferring virtual information to actual operations had many shortcomings.…”

Section: Introductionmentioning

confidence: 99%