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Authors
Grayli, Ensieh
Dashtban, Abbas
Shadan, Leyla
Behnampour, Naser
Afshari, Elham
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Article History
Received: 30 January 2021
Accepted: 17 May 2021
First Online: 28 May 2021
Declarations
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: Ethical approval for this study was obtained from the Ethics Committee of Golestan University of Medical Sciences (code: IR.GOUMS.REC.1397.191). All methods were carried out in accordance with relevant guidelines and regulations. The permission to utilize the teeth samples was granted by The Ethics Committee of Golestan University of Medical Sciences based on the recorded proposal (research code: 19-110580, ethics code: IR.GOUMS.REC.1397.191). The permission is also approved by Iran National Committee for Ethics in Biomedical research (ExternalRef removed).
: Not applicable.
: The authors declare that they have no competing interests.
