Document Detail

Accuracy of CBCT images in the assessment of buccal marginal alveolar peri-implant defects: effect of field of view.
MedLine Citation:
PMID:  24645965     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: To investigate the reliability and accuracy of cone beam CT (CBCT) images obtained at different fields of view in detecting and quantifying simulated buccal marginal alveolar peri-implant defects.
METHODS: Simulated buccal defects were prepared in 69 implants inserted into cadaver mandibles. CBCT images at three different fields of view were acquired: 40 × 40, 60 × 60 and 100 × 100 mm. The presence or absence of defects was assessed on three sets of images using a five-point scale by three observers. Observers also measured the depth, width and volume of defects on CBCT images, which were compared with physical measurements. The kappa value was calculated to assess intra- and interobserver agreement. Six-way repeated analysis of variance was used to evaluate treatment effects on the diagnosis. Pairwise comparisons of median true-positive and true-negative rates were calculated by the χ² test. Pearson's correlation coefficient was used to determine the relationship between measurements. Significance level was set as p < 0.05.
RESULTS: All observers had excellent intra-observer agreement. Defect status (p < 0.001) and defect size (p < 0.001) factors were statistically significant. Pairwise interactions were found between defect status and defect size (p = 0.001). No differences between median true-positive or true-negative values were found between CBCT field of views (p > 0.05). Significant correlations were found between physical and CBCT measurements (p < 0.001).
CONCLUSIONS: All CBCT images performed similarly for the detection of simulated buccal marginal alveolar peri-implant defects. Depth, width and volume measurements of the defects from various CBCT images correlated highly with physical measurements.
K Kamburoğlu; S Murat; C Kılıç; S Yüksel; H Avsever; A Farman; W C Scarfe
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2014-03-20
Journal Detail:
Title:  Dento maxillo facial radiology     Volume:  43     ISSN:  0250-832X     ISO Abbreviation:  Dentomaxillofac Radiol     Publication Date:  2014  
Date Detail:
Created Date:  2014-04-28     Completed Date:  2014-07-07     Revised Date:  2014-07-08    
Medline Journal Info:
Nlm Unique ID:  7609576     Medline TA:  Dentomaxillofac Radiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  20130332     Citation Subset:  D    
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MeSH Terms
Alveolar Bone Loss / pathology,  radiography
Alveolar Process / pathology,  radiography*
Cone-Beam Computed Tomography / standards*
Dental Implants*
Image Processing, Computer-Assisted / methods
Mandibular Diseases / pathology,  radiography*
Observer Variation
Reproducibility of Results
Reg. No./Substance:
0/Dental Implants

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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