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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Neonatal lines are found in all of the following except:
assistant
The correct answer is  In deciduous teeth and in permanent molars and lower incisors, in which the enamel and dentin are formed partly before and partly after birth, the prenatal and postnatal enamel and dentin, are separated by the neonatal line or ring.
Note:
According to some authors, neonatal line is not seen in permanent lower incisors.