EFFECT OF IRRIGATION NEEDLE DESIGN ON CALCIUM HYDROXIDE REMOVAL: AN IN VITRO SCANNING ELECTRON MICROSCOPY STUDY. YHCĐ [Internet]. 2026 July 31 [cited 2026 Sept. 8];67(CĐ11-NCKH). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/6031