It took 10 months to grow only two teeth, is that normal?

Patient's question:

Doctor, my baby is now ten and a half months old, but he has only grown two teeth so far, both in the middle of the lower jaw. I see that some babies of our age have already grown seven or eight teeth. I'm a bit worried that my baby might be growing too slowly.
What kind of help I need: Is it normal for a baby to only have two teeth at ten months?

Doctor's answer:

The time and order of deciduous tooth eruption
1. Central incisors: Lower jaw at 6 months, upper jaw at 7.5 months
2. Lateral incisors: Lower jaw at 7 months, upper jaw at 9 months
3. Second molars: Lower jaw at 12 months, upper jaw at 14 months
4. Canines: Lower jaw at 16 months, upper jaw at 18 months
5. Third molars: Lower jaw at 20 months, upper jaw at 2 years
Some children may have an inverted order of tooth eruption, but it does not ultimately interfere with the alignment of the teeth and does not require intervention. Under normal circumstances, children with good nutrition, taller height, and higher weight tend to have earlier tooth eruption compared to those with poor nutrition, shorter height, and lower weight. It is recommended that you consider calcium supplementation.