Which primary teeth calcify first in utero?

Which primary teeth calcify first in utero?

• A. Central incisors
• B. First molars
• C. Lateral incisors
• D. Canines

Answer: (A)

Calcification timing for deciduous dentition starts in the fetal period, with the earliest mineralization occurring in the central incisors. Around the fourth month of gestation, the crowns of these front teeth begin to calcify first, reflecting their early development and simpler shape. After central incisors, the lateral incisors begin calcifying, followed by the first molars and canines, in a progressively later sequence. So the central incisors are the first primary teeth to calcify in utero.

Calcification timing for deciduous dentition starts in the fetal period, with the earliest mineralization occurring in the central incisors. Around the fourth month of gestation, the crowns of these front teeth begin to calcify first, reflecting their early development and simpler shape. After central incisors, the lateral incisors begin calcifying, followed by the first molars and canines, in a progressively later sequence. So the central incisors are the first primary teeth to calcify in utero.