At what age do permanent central incisors begin to calcify?

Permanent central incisors typically begin to calcify around the age of 3 to 4 months. This developmental milestone is crucial in understanding dental growth and formation in infants. The process of calcification is part of the tooth development stages, which includes the formation of the dental tissues such as enamel and dentin. Knowing the age at which these teeth start to calcify helps dental professionals estimate the developmental status of a child's teeth and guide them in preventive care and treatment planning.

The other age ranges provided reflect the calcification stages for different teeth or different parts of dental development, making them less relevant in this context. Understanding the timing of tooth development is important for recognizing normal growth patterns in children.