The accuracy of linear measurements in cone beam computed tomography for assessing intrabony and furcation defects: A systematic review and meta-analysis.

Abstract

Objective: This study aims to assess the accuracy of the linear measurements of intrabony and/or furcation defect quantified by cone beam computed tomography (CBCT). Material and Methods: A systematic search of the literature was conducted by two authors independently from the PubMed, Scopus, and EBSCO for full articles published in journals between January 2003 and March 2017. Eligible studies were assessed for quality and heterogeneity using the QUADAS-2 tool. A meta-analysis was performed to identify the accuracy of CBCT in the measurement of intrabony defects. The effect size was estimated and reported as the standardised mean difference (SMD). Results: A total of 105 titles and abstracts were screened. Of those, 11 articles met the inclusion criteria for the systematic review while only four were selected for metaanalysis. The overall effects of standardized mean difference and 95% CI was-0.03 [95% CI-0.67 to 0.60] with a x 2 statistic of 0.49 with 3 degrees of freedom (p>0.05), I 2 = 0.01%. Conclusion: CBCT is highly accurate and reproducible regarding linear measurements for assessing intrabony defects with a weighted standardized mean difference of 0.03mm. More randomised controlled trials are required to assess the accuracy of CBCT in assessing patients with periodontal defects.

CBCT assessment of alveolar bone wall morphology and its correlation with tooth angulation in the anterior mandible: a new classification for immediate implant placement

“…One of the limitations in this present study and previous research was overestimation or underestimation of the actual alveolar bone thickness measured with CBCT versus measurements made directly with a gauge [ 34 38 39 ]. Nonetheless, CBCT is considered an accurate imaging modality with respect to linear measurements, with mean differences of less than 0.05 mm [ 40 ]. Furthermore, the error is reduced when a small FOV and medium voxel size (0.18 mm) for high resolution are selected.…”

A Narrative Review of Alveolar Bone Analysis and CBCT Classification related to Immediate Implant Placement in The Anterior Maxilla

“…Many authors have documented an accuracy of CBCT images of bone analysis with less than 1 mm errors (25,26). All of the CBCT measurements were found to be non-significantly different from the direct measurements on cadaver heads, and there was no pattern of underestimation or overestimation (19).…”