CBCT device dependency on the transfer accuracy from computer-aided implantology procedures.
Summary of "CBCT device dependency on the transfer accuracy from computer-aided implantology procedures."
OBJECTIVES:
To evaluate the potential influence of different cone-beam computed tomography (CBCT) devices on the transfer accuracy of an open-source system for computer-aided implantology (CAI). MATERIAL AND
METHODS:
A total of 108 implants in 18 partially edentulous patient-equivalent models were planned and fully guided implants were inserted using an open-source CAI system with three different CBCT devices. After follow-up CBCT and fiducial marker-matching procedure, linear horizontal, vertical, and maximal three-dimensional deviations, as well as angle deviations between the virtual planning data and the surgical results were calculated. Variance analysis was carried out to prove whether or not the observed differences between the CBCT devices were statistically significant.
RESULTS:
The observed mean three-dimensional deviation rates between virtually planned and achieved implant positions varied by around 400 μm (45%) at the implant's base and around 540 μm (50%) at the implant's tip in dependence to the applied CBCT device. Mean vertical deviations varied around 370 μm (76%) at the implant's base and 350 μm (69%) at the implant's tip, whereas axes deviations varied around 0.81° (40%) between the three investigated CBCT devices. Except for the axes deviations and the horizontal linear deviations at the implants base, observed differences reached significance level between the CBCT devices.
CONCLUSIONS:
Until now, the potential influence from different CBCT devices on the transfer accuracy of CAI systems has not yet been investigated. Data from the present study confirm for the first time the in vitro CBCT device dependency on the transfer accuracy of CAI systems reaching up to axes deviations of 0.6 angle degree and linear deviations around half a millimeter.
Affiliation
Department of Craniomaxillofacial and Plastic Surgery, University of Cologne, Cologne, Germany.
Journal Details
This article was published in the following journal.
Name: Clinical oral implants research
ISSN: 1600-0501
Pages:
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22680780
- DOI: http://dx.doi.org/10.1111/j.1600-0501.2011.02272.x
Medical and Biotech [MESH] Definitions
Computer-aided Design
The use of computers for designing and/or manufacturing of anything, including drugs, surgical procedures, orthotics, and prosthetics.
Safety-based Medical Device Withdrawals
Removal of a MEDICAL DEVICE from the market due to the identification of an intrinsic property of the device that results in a serious risk to public health.
Therapy, Computer-assisted
Computer systems utilized as adjuncts in the treatment of disease.
Computer Simulation
Computer-based representation of physical systems and phenomena such as chemical processes.
Radiotherapy, Computer-assisted
Computer systems or programs used in accurate computations for providing radiation dosage treatment to patients.
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