Tooth Development

Tooth Development

The following tables chart average ages in which primary and permanent teeth erupt. Please keep in mind that these are only average ranges.

Upper Primary (Baby) Teeth

Lower Primary (Baby) Teeth

Central Incisor         8-12 months

Central Incisor         6-10 months

Lateral Incisor         9-13 months

Lateral Incisor         10-16 months

Cuspids                   16-22 months

Cuspids                   17-23 months

First Molar               13-19 months

First Molar               14-18 months

Second Molar          25-33 months

Second Molar          23-31 months

Permanent Upper Teeth

Permanent  Lower Teeth

Central Incisor           7-8 years

Central Incisor          6-7 years

Lateral Incisor            8-9 years

Lateral Incisor           7-8 years

Cuspids                     11-12 years

Cuspids                     9-10 years

First Bicuspids         10-11 years

First Bicuspids         10-12 years

Second Bicuspids    10-12 years

Second Bicuspids    11-12 years

First Molars                6-7 years

First Molars                6-7 years

Second Molars          12-13 years

Second Molars          11-13 years

Third Molars               17-21 years

Third Molars               17-21 years