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."
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
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.
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.
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.
Department of Craniomaxillofacial and Plastic Surgery, University of Cologne, Cologne, Germany.
This article was published in the following journal.
Name: Clinical oral implants research
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22680780
- DOI: http://dx.doi.org/10.1111/j.1600-0501.2011.02272.x
Computer-Aided Detection for Computed Tomographic Colonography Screening: A Prospective Comparison of a Double-Reading Paradigm With First-Reader Computer-Aided Detection Against Second-Reader Computer-Aided Detection.
The objective of this study was to prospectively compare diagnostic performance and time efficiency of a double-reading paradigm in which a first-reader computer-aided detection (CAD) is followed by a...
Chest radiography to diagnose and screen for pulmonary tuberculosis has limitations, especially due to inter-reader variability. Automating the interpretation has the potential to overcome this drawba...
Abstract Dry powder inhalers (DPIs) are gaining popularity for the delivery of drugs. A cost effective and efficient delivery device is necessary. Developing new DPIs by modifying an existing device m...
In prosthodontics, conventional methods of fabrication of oral and facial prostheses have been considered the gold standard for many years. The development of computer-aided manufacturing and the medi...
To assess the impact of spatial resolution and CBCT unit on cone beam computed tomography (CBCT) images for the detection accuracy of condylar defects.
This study is designed to investigate whether or not the use of a customized vacuum immobilization device (CVID) to immobilize rectal cancer patients undergoing preoperative pelvic radiati...
Computer Aided Surgery in total knee arthroplasty improves knee stability and functional outcomes more than conventional total knee arthroplasty.
The primary objective of this study is to acquire digital mammography images produced by the Xpress Digital Mammography System in order to develop Computer Aided Detection software and sys...
In orthodontics, conventional fixed appliances, usually consisting of prefabricated components, require step-by-step adjustment in order to move teeth in the planned direction. May treatm...
The purpose of this study is to develop a computer-aided diagnosis system to find breast lesions, including masses and microcalcifications, which hopefully will improve breast cancer detec...
Medical and Biotech [MESH] Definitions
The use of computers for designing and/or manufacturing of anything, including drugs, surgical procedures, orthotics, and prosthetics.
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.
Computer systems utilized as adjuncts in the treatment of disease.
Computer-based representation of physical systems and phenomena such as chemical processes.
Computer systems or programs used in accurate computations for providing radiation dosage treatment to patients.