1881. The first evidence of calcification of primary anterior teeth begins approximately between ______________? September 27, 2025 by Admin A. 14 to 17 weeks in utero B. 9 to 12 weeks in utero C. 6- to 9 weeks in utero D. 17 to 20 weeks in utero ✅ The correct answer is option A. 14 to 17 weeks in utero.