Qadr Omer, Z., S. Ahmed, and muhamad saleh. “Developing White Spot Lesion (WSL) in Patients With Fixed Orthodontic Appliance in Erbil City of Iraq”. Al-Rafidain Dental Journal, vol. 19, no. 1, Dec. 2019, pp. 52-59, doi:10.33899/rden.2020.126381.1011.