sftc10 Download single image for 35mm slide. Download single PowerPoint screen.	By the age of 27 months, 20 primary teeth should be present. (Photo: eruption at 27 months)
sftc11 Download single image for 35mm slide. Download single PowerPoint screen.	The first permanent teeth to emerge are the maxillary and mandibular first molars. These molars will erupt behind the most posterior primary teeth—the primary second molars. The permanent molars are referred to by their anticipated age of eruption. The first molars are called 6-year molars, and the second molars are referred to as 12-year molars.
sftc12 Download single image for 35mm slide. Download single PowerPoint screen.	The eruption of the mandibular first molar is accompanied or occasionally preceded by the exfoliation of the mandibular and maxillary primary central and lateral incisors. Between the ages of 6 and 7, the mandibular permanent incisors erupt with the maxillary incisors following at ages 7 through 9.