Seybold Report ISSN: 1533-9211
Anjali Sankar
Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University,
Chennai 600077, India, Mail Id : 152006006.sdc@saveetha.com
Raghu Sandhya
Reader, Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University,
Chennai 600077, India, Mail Id : sandhya.sdc@saveetha.com
Vol 17, No 09 ( 2022 ) | DOI: 10.5281/zenodo.7095034 | Licensing: CC 4.0 | Pg no:1135-1148 | Published on: 20-09-2022
Abstract
AIM:The aim of this research was to evaluate the diagnostic accuracy of Cone beam computed tomography(CBCT) using gray scale value in detecting caries. The first objective was to measure the remaining dentin thickness (RDT) using intraoral periapical radiographs, CBCT, sectioning of tooth and compare the same. The second objective was to derive at the grayscale values of normal enamel, normal dentin, affected dentin and infected dentin by comparing the CBCT images with the sectioned tooth.
MATERIALS AND METHODS: 10 human permanent premolars and molars with dental caries not involving pulp was collected. The inclusion criterion did not include age, gender, or the reason for extraction. All the teeth were subjected to radiographic evaluation using Radio Visio Graphy (RVG), CBCT and stereomicroscopic evaluation of the sectioned tooth. The remaining dentin thickness was measured by all the three methods. Gray scale value of normal enamel, normal dentin, affected dentin and infected dentin was recorded using CBCT.
RESULTS: Statistical analysis using unpaired t-test showed remaining dentin thickness using CBCT and stereomicroscopic analysis to be statistically significant (p0.05). The gray scale range was ranging from -50 to –200 in infected dentin and 200 to 600 in affected dentin, while that of normal enamel was 3450 to 3800 and normal dentin was 1900 to 2200.
CONCLUSION: Based on the gray scale values,CBCT can be considered as an accurate tool for use in the diagnosis of caries.
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