Bekheit , P. .; Rabie , M. .; Hassan, H. Y. Assessing Percentage of Touched Surfaces and Changes in Cross-Sectional Area in Oval Shaped Root Canals After XP-Endo Shaper, IRaCe and HyFlex CM Instrumentation Using AutoCAD Software. Open Access Maced J Med Sci 2023, 11, 95-103.