Document Detail

Evaluation of tuned-aperture computed tomography in the detection of simulated periodontal defects.
MedLine Citation:
PMID:  11925546     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: The objective of this study was to compare the diagnostic efficacy of tuned-aperture computed tomography (TACT) and conventional film for the detection of simulated periodontal defects. STUDY DESIGN: Periodontal defects were created in 15 premolar-molar interproximal sites selected from 8 cadaver jaw segments. Ten observers viewed 45 image pairs (baseline and follow up) in 4 TACT modalities and film to assess the presence of defect. The TACT modalities were 1st and 2nd generation prototype systems (TACT-1 and TACT-2) with circular (C) and random (R) distribution patterns of source projection (TACT-1C, TACT-1R, TACT-2C, TACT-2R). Observer performance and related factors were analyzed by using receiver operating characteristic and analysis of variance. RESULTS: Mean A(z) values were 0.64 for film, 0.74 for TACT-1C, 0.82 for TACT-1R, 0.64 for TACT-2C, and 0.69 for TACT-2R. TACT-1R was significantly better than film (P < .001), TACT-2C (P < .001) and TACT-2R (P = .007). CONCLUSION: TACT-1R provided the best diagnostic performance in the detection of simulated periodontal defects among the 5 modalities compared in this study.
Aruna Ramesh; John B Ludlow; Richard L Webber; Donald A Tyndall; David Paquette
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics     Volume:  93     ISSN:  1079-2104     ISO Abbreviation:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Publication Date:  2002 Mar 
Date Detail:
Created Date:  2002-04-01     Completed Date:  2002-07-17     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9508562     Medline TA:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  341-9     Citation Subset:  D; IM    
Division of Oral and Maxillofacial Radiology, Department of General Dentistry, Tufts University School of Dental Medicine, Boston, Mass 02111, USA.
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MeSH Terms
Alveolar Bone Loss / radiography*
Analysis of Variance
ROC Curve
Radiography, Dental / methods*
Tomography, X-Ray Computed / methods*
Grant Support

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