when does an infant start teething
Teething usually begins around 6 months of age. But it is normal for teething to start at any time between 3 months and 12 months of age.By the time your child is about 3 years old, he or she will have all 20 primary teeth. The lower front teeth usually come in first. Upper front teeth usually come in 1 to 2 months after the lower front teeth.See a picture that shows when the primary teeth come in.y the time your child is about 3 years old, he or she will have all 20 primary teeth. The lower front teeth usually come in first. Upper front teeth usually come in 1 to 2 months after the lower front teeth. See a picture that shows when the primary teeth come in.