the Effect of Multiple Usage and Coarseness of Diamond Burs on Marginal Microleakage of Composite Resin Restorations in Primary Teeth (In-Vitro Study). مجلة الجامعة [Internet]. 2024 Feb. 28 [cited 2026 Jun. 6];6(18). Available from: https://journal.hama-univ.edu.sy/huj/article/view/1585