Linked Life Data

17538314

Source:http://linkedlifedata.com/resource/pubmed/id/17538314

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2007-5-31
pubmed:abstractText
A detailed visualization of the interocclusal relationship is essential in a three-dimensional virtual planning setup for orthognathic and facial orthomorphic surgery. The purpose of this study was to introduce and evaluate the use of a wax bite wafer in combination with a double computed tomography (CT) scan procedure to augment the three-dimensional virtual model of the skull with a detailed dental surface. A total of 10 orthognathic patients were scanned after a standardized multislice CT scanning protocol with dose reduction with their wax bite wafer in place. Afterward, the impressions of the upper and lower arches and the wax bite wafer were scanned for each patient separately using a high-resolution standardized multislice CT scanning protocol. Accurate fitting of the virtual impressions on the wax bite wafer was done with surface matching using iterative closest points. Consecutively, automatic rigid point-based registration of the wax bite wafer on the patient scan was performed to implement the digital virtual dental arches into the patient's skull model (Maxilim, version 2.0; Medicim NV, St-Niklaas, Belgium). Probability error histograms showed errors of < or =0.16 mm (25% percentile), < or =0.31 mm (50% percentile), and < or =0.92 (90% percentile) for iterative closest point surface matching. The mean registration error for automatic point-based registration was 0.17 +/- 0.07 mm (range, 0.12-0.22 mm). The combination of the wax bite wafer with the double CT scan procedure allowed for the setup of an accurate three-dimensional virtual augmented model of the skull with detailed dental surface. However, from a clinical workload, data handling, and computational point of view, this method is too time-consuming to be introduced in the clinical routine.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1049-2275
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
533-9
pubmed:meshHeading
pubmed-meshheading:17538314-Dental Arch, pubmed-meshheading:17538314-Dental Impression Technique, pubmed-meshheading:17538314-Dental Materials, pubmed-meshheading:17538314-Dental Occlusion, pubmed-meshheading:17538314-Dental Occlusion, Centric, pubmed-meshheading:17538314-Humans, pubmed-meshheading:17538314-Image Processing, Computer-Assisted, pubmed-meshheading:17538314-Imaging, Three-Dimensional, pubmed-meshheading:17538314-Jaw, pubmed-meshheading:17538314-Jaw Relation Record, pubmed-meshheading:17538314-Models, Anatomic, pubmed-meshheading:17538314-Patient Care Planning, pubmed-meshheading:17538314-Radiation Dosage, pubmed-meshheading:17538314-Skull, pubmed-meshheading:17538314-Tomography, X-Ray Computed, pubmed-meshheading:17538314-User-Computer Interface, pubmed-meshheading:17538314-Waxes
pubmed:year
2007
pubmed:articleTitle
The use of a wax bite wafer and a double computed tomography scan procedure to obtain a three-dimensional augmented virtual skull model.
pubmed:affiliation
Division of Maxillo-Facial Surgery, Department of Surgery, General Hospital St-Jan Bruges, Ruddershove, Bruges, Belgium. gwen.swennen@azbrugge.be
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't