The first sign of future deciduous teeth as a thickening of oral ectoderm appears at about_____________?
The first sign of future deciduous teeth as a thickening of oral ectoderm appears at about_____________? A. 25th day of Intra uterine life B. 34th day of Intra uterine lifeC. 56th day of Intra uterine life D. 20 wks of…