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ORIGINAL RESEARCH Table of Contents   
Year : 2014  |  Volume : 25  |  Issue : 2  |  Page : 214-219
Conventional and digital radiographic assessment of tooth enamel de-/remineralization processes: An experimental study


1 Department of Stomatology and Radiology, School of Dentistry Federal University of Bahia, Brazil
2 Substitute Professor at Department of Stomatology and Radiology, School of Dentistry Federal University of Bahia, Brazil
3 Department of Dental Practice, School of Dentistry Federal University of Bahia, Brazil
4 Department of Biochemistry, School of Dentistry Federal University of Bahia, Brazil

Correspondence Address:
Patrícia Leite-Ribeiro
Department of Stomatology and Radiology, School of Dentistry Federal University of Bahia
Brazil
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-9290.135926

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Objective: This study aimed to compare digital techniques for evaluating dental enamel de-/remineralization. Materials and Methods: Sixty extracted molars were subjected to a process of de- and remineralization. Radiographs were taken before and after each stage. These radiographs were evaluated by the conventional method and were then scanned and analyzed either with or without the use of image enhancement. Moreover, the gray levels (GLs) of the affected areas were measured. Results: All methods exhibited low sensitivity and identical levels of specificity (99.4%). Analysis of the grayscale levels found statistically significant differences between the initial radiographs (P < 0.05). The mean GL of the carious group was significantly lower than that of the remineralized group. The GL did not differ significantly between the initial and final radiographs of the remineralized group, although the mean of the first group was lower than that of the second, which demonstrated that the remineralization process restored the normal density of the dental enamel. Conclusion: Measurement of the mean GL was sufficiently sensitive to detect small alterations in the surface of the enamel.


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