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Tooth Eruption. Radiograph Test. What age?. 7 years of age. Apices of 1 st permanent molar still wide open. Mixed Dentition. Premolars have not erupted. What Age?. 2 ½ Years of Age. Permanent 1 st Molar crowns. All primary teeth have erupted.
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Tooth Eruption Radiograph Test
7 years of age Apices of 1st permanent molar still wide open Mixed Dentition Premolars have not erupted
2 ½ Years of Age Permanent 1st Molar crowns All primary teeth have erupted No premolars have formed – just hard tissue
5 ½ Years Old 1st Permanent Molar has erupted thru bone – not mucosa Apices are wide open
4 Years of Age All permanent anterior crowns are present Premolars crown formation has started
9 Years of Age Permanent 1st Molar roots are complete
Test Yourself (click to reveal the answers) Primary Teeth Eruption 4-8 months thru ~ age 2 7 years of age Permanent Teeth Eruption End of Mixed Dentition 12-14 years old Old enough for the mines Eruption of 1st Permanent Molar 6 years old 12 years old Eruption of 2nd Permanent Molar ‘factory molar’
Sorry if the child labor was depressing • But check out this little guy! An usually mature mouth…