Evaluation of the Efficacy of Gamma Value Changes on Detection of Proximal Recurrent Caries in Digital Bitewing Radiograph

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HABIBI KIA ALI; Khajavi Gholam Reza; DABAGHI ARASH; SHARIFI SANAZ; ESMAEILI MASOUD; HAGHIGHIZADEH MOHAMMAD HOSSEIN

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Journal: Jundishapur Scientific Medical Journal Year:2020 | Volume:19 | Issue:6 Page(s): 545-554

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Title

Evaluation of the Efficacy of Gamma Value Changes on Detection of Proximal Recurrent Caries in Digital Bitewing Radiograph

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Keywords

Proximal Recurrent CariesQ2

Gamma RateQ1

digital BiteQ2

Wing radiographicQ3

Abstract

Background and Objective: Today, most digital imaging systems make available various types of image processing techniques. Hence, the purpose of the present study was to compare the digital Bite-Wing radiographic function with the image's gamma value changes (image gamma is a functional digital imaging feature, so that the image contrast is selectively increased in bright or darker areas by changing the gamma value of the image). Materials and Methods: In this laboratory study, a cavity was created for class II amalgam restoration at both proximal surfaces of 80 healthy premolar teeth. Caries lesions were artificially created in each tooth and repaired with amalgam. Digital radiographs were processed in three gamma modes (low, medium and high). Then, recurrent caries in conventional digital radiograph with low, medium and high gamma values were investigated by two radiologists with at least 2 years of work experience. Specificity, sensitivity, and overall accuracy were calculated using Kappa Test. Results: The results of this study showed that the highest sensitivity and specificity value are related to the images with low gamma and then to medium gamma images. The lowest sensitivity and specificity rate belonged to the images with high gamma. Conclusion: Low-gamma images used to identify Proximal Recurrent Caries can be adopted as a processing filter. While images with medium and high gamma recognize Proximal Recurrent Caries to a lesser extent.

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APA: Copy

HABIBI KIA, ALI, Khajavi, Gholam Reza, DABAGHI, ARASH, SHARIFI, SANAZ, ESMAEILI, MASOUD, & HAGHIGHIZADEH, MOHAMMAD HOSSEIN. (2020). Evaluation of the Efficacy of Gamma Value Changes on Detection of Proximal Recurrent Caries in Digital Bitewing Radiograph. JUNDISHAPUR SCIENTIFIC MEDICAL JOURNAL, 19(6 ), 545-554. SID. https://sid.ir/paper/416479/en

Vancouver: Copy

HABIBI KIA ALI, Khajavi Gholam Reza, DABAGHI ARASH, SHARIFI SANAZ, ESMAEILI MASOUD, HAGHIGHIZADEH MOHAMMAD HOSSEIN. Evaluation of the Efficacy of Gamma Value Changes on Detection of Proximal Recurrent Caries in Digital Bitewing Radiograph. JUNDISHAPUR SCIENTIFIC MEDICAL JOURNAL[Internet]. 2020;19(6 ):545-554. Available from: https://sid.ir/paper/416479/en

IEEE: Copy

ALI HABIBI KIA, Gholam Reza Khajavi, ARASH DABAGHI, SANAZ SHARIFI, MASOUD ESMAEILI, and MOHAMMAD HOSSEIN HAGHIGHIZADEH, “Evaluation of the Efficacy of Gamma Value Changes on Detection of Proximal Recurrent Caries in Digital Bitewing Radiograph,” JUNDISHAPUR SCIENTIFIC MEDICAL JOURNAL, vol. 19, no. 6 , pp. 545–554, 2020, [Online]. Available: https://sid.ir/paper/416479/en

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