In the normal sequence of primary teeth eruption, the first molars usually appear after the central and lateral incisors.
Typically, the first molars erupt around 12 to 15 months of age in most children.
Earlier teeth include the central incisors (6–8 months) and lateral incisors (8–12 months).
After the first molars, the canines and second molars follow at later stages.
Therefore, the correct age range for the first molar eruption is between 12 and 15 months.