Thursday, March 22, 2012: 8 a.m. - 9:30 a.m.
Presentation Type: Oral Session
A.V. RITTER, Dept. of Operative Dentistry, University of North Carolina, Chapel Hill, NC, M.D. RAMOS, Nova Southeastern University, Chapel Hill, NC, F. ASTORGA, Dept. Operative Dentistry, University of North Carolina, Chapel Hill, NC, D. SHUGARS, School of Dentistry, University of North Carolina, Chapel Hill, NC, and J. BADER, University of North Carolina, Chapel Hill, NC
Objectives: To determine
1:the extent of agreement between clinical (visual-tactile, CE) and
radiographic (RE) examinations in detecting presumptive caries lesions on
occlusal and proximal surfaces of posterior teeth of UNC Xylitol for Adult
Caries Trial (X-ACT) participants; and 2:the additional caries diagnostic yield
obtained by adding RE to CE.
Methods: � Data
consisted of surface-level clinical and radiographic scores of disease (cavitated
and non-cavitated lesions, existing restorations) or non-disease (sound
surfaces). Participants (18-80 years old with ≥12 erupted teeth and 1-10
coronal or root caries lesions) received baseline CE by a trained and
calibrated examiner, and had interproximal radiographs obtained within 7 months
before or after the date of the CE (N=114). Radiographs were assessed
independently by two trained and calibrated examiners masked with respect to
CE. Kappa statistics provided an estimate of agreement between CE and RE on
diseased surfaces. The additional caries diagnostic yield of the RE over CE is the
additional presumptive lesions detected radiographically as a percentage of the
total number of presumptive lesions detected clinically.
Results: � Surface-level CE-RE
agreement (Kappa) and additional diagnostic yield from RE (n=2415 surfaces):
Surfaces | Caries Lesions Detected | Kappa | Additional Diagnostic Yield |
| Total CE (CE alone) | Total RE (RE alone) | CE=RE | Total | | |
All | 292 (211) | 283 (202) | 81 | 494 | 0.18 | 69.2% |
Occlusal | 33 (31) | 20 (18) | 2 | 51 | 0.04 | 54.6% |
Proximal | 259 (180) | 263 (184) | 79 | 443 | 0.18 | 71.0% |
Conclusions: There is
poor agreement between CE and RE to detect caries in posterior teeth of caries-active
adults. However, a RE performed within 7 months before or after a CE adds
substantial caries diagnostic yield in a clinical trial, especially on proximal
surfaces.� Supported by NIDCR U01DE018038, U01DE018047,
U01DE018048, U01DE018049, and U01DE018050. �This was an X-ACT ancillary
study and, as such, was designed, conducted, and analyzed by the co-authors
only.
This abstract is based on research that was funded entirely or partially by an outside source: NIDCR U01DE018038, U01DE018047, U01DE018048, U01DE018049, and U01DE018050
Keywords: Caries, Cariology, Diagnosis and Radiology
![[ Visit AADR's Website ]](images/banner.jpg)