Ethics approval and consent to participate
The study protocol conforms to the ethical guidelines of the 1975 Declaration of Helsinki and the Ethical Committees of Shiraz University of Medical Sciences approved the study by ethical code IR.SUMS.DENTAL.REC.1398.103 and clinical trial code IRCT20110428006322N2 (date of registration: 17/10/2019). All methods were carried out in accordance with relevant guidelines and regulations. Besides, Written informed consent was taken from all participants.