Comparison of periodontal evaluation by cone-beam computed tomography, and clinical and intraoral radiographic examinations
Abstract
Objectives
Cone-beam
computed tomography (CBCT) has been widely used in many fields of
dentistry. However, little is known about the accuracy of CBCT for
evaluation of periodontal status. The objective of this study was to
compare and correlate periodontal assessments among CBCT, clinical
attachment loss (CAL) measurement, and periapical (PA)/bitewing (BW)
radiography.
Methods
Eighty
patients (28 males, 52 females; age range, 19–84 years) from the
University of Texas School of Dentistry at Houston were evaluated
retrospectively. Measurements were taken on the central incisors,
canines, and first molars of the right maxilla and left mandible. CAL
was extracted from periodontal charts. The radiographic distance from
the cementum–enamel junction (CEJ) to the alveolar crest was measured
for tooth mesial and distal sites on PA/BW and CBCT images using MiPacs
software and Anatomage Invivo software, respectively. One-way ANOVA and
Pearson analysis were performed for statistical analyses.
Results
The
CEJ–crest distances for CBCT, PA/BW, and CAL were 2.56 ± 0.12,
2.04 ± 0.12, and 2.08 ± 0.17 mm (mean ± SD), respectively. CBCT
exhibited larger values than the other two methods (p < 0.05). There were highly significant positive correlations among CBCT, PA/BW, and CAL measurements at all examined sites (p < 0.001).
The Pearson correlation coefficient was higher for CBCT with CAL
relative to PA/BW with CAL, but the difference was not significant (r = 0.64 and r = 0.55, respectively, p > 0.05).
Conclusions
This
study validates the suitability of CBCT for periodontal assessment.
Further studies are necessary to optimize the measurement methodology
with CBCT.
Comments