wafa, A., Gaballah, S., El laithy, M. (2021). Assessment of accuracy of 2D cephalograms reconstructed from 3D CBCT in labial alveolar bone thickness measurements over the most forward maxillary incisor. test, 59(6), 39-48. doi: 10.21608/eos.2021.76631.1016
azza gamal wafa; Safaa M Gaballah; Mohammed M. El laithy. "Assessment of accuracy of 2D cephalograms reconstructed from 3D CBCT in labial alveolar bone thickness measurements over the most forward maxillary incisor". test, 59, 6, 2021, 39-48. doi: 10.21608/eos.2021.76631.1016
wafa, A., Gaballah, S., El laithy, M. (2021). 'Assessment of accuracy of 2D cephalograms reconstructed from 3D CBCT in labial alveolar bone thickness measurements over the most forward maxillary incisor', test, 59(6), pp. 39-48. doi: 10.21608/eos.2021.76631.1016
wafa, A., Gaballah, S., El laithy, M. Assessment of accuracy of 2D cephalograms reconstructed from 3D CBCT in labial alveolar bone thickness measurements over the most forward maxillary incisor. test, 2021; 59(6): 39-48. doi: 10.21608/eos.2021.76631.1016

Assessment of accuracy of 2D cephalograms reconstructed from 3D CBCT in labial alveolar bone thickness measurements over the most forward maxillary incisor

Egyptian Orthodontic Journal
Article 4, Volume 59, Issue 6, June 2021, Pages 39-48    PDF (718.86 K)
Document Type: Original Article
DOI: 10.21608/eos.2021.76631.1016
Authors
azza gamal wafa* 1; Safaa M Gaballah2; Mohammed M. El laithy3
1orthodontic department, faculty of dentistry, KFS university, el mahalla el kubra, Egypt
2Professor, Department of Orthodontics, School of Dentistry, Tanta University, Tanta, Egypt.
3Associate professor, Department of Orthodontics, School of Dentistry, Tanta University, Tanta, Egypt
Abstract
Objectives: Assess the accuracy of 2D cephalograms reconstructed from 3D CBCT by comparing labial alveolar bone thickness over the most forward maxillary incisor (MFMI) in 2 dimensions vs 3 dimensions. Materials and Methods: Sixty cone-beam computed tomography (CBCT) images were coded, and 2-dimensional (2D) cephalograms were constructed using ray sum technique by using the entire volumetric data in the On demand 3DAPP software (version1.0.10.7s10;cybermed, korea). The 2D CBCT reconstructed images were analyzed using audax ceph 2d analysis software. The 2D and 3D MFMI crowns were located using (FH)-A-point line as the vertical reference line and alveolar bone labial to 3 points on the MFMI roots, using Frankfort horizontal FH line as a horizontal reference line, were measured. The 2D and 3D measurements were compared using paired t tests. A 5% significance level was used for all tests. Results: labial alveolar bone thickness over the 3 root points of MFMI and the MFMI distance to (FH)-A-point line were significantly greater in 2 dimensions than in 3 dimensions. Conclusions: Labial alveolar bone thickness over MFMI roots can be overestimated when evaluated using 2D reconstructed cephalograms compared with 3D evaluation. Alveolar bone measurements over maxillary incisors were interfered by ANS in two dimensions.
Keywords
CBCT; alveolar bone; reconstructed cephalogram
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