primary eruption sequence
Mn - CI
Mx (3) - LI, 1M, C
Mn - 2M
Incisors (10 months)
1M (14 months)
C (16 months)
2M (24 months)
7+4 rule
after 7 months, 4 teeth every 4 months
permanent eruption sequence
Mn and Mx 1M
Mn CI
Mx CI
Mn LI
Mx LI
Mn C
1 PMs
At the time of eruption, the tooth root is usually between … formed
two-thirds to three-quarters formed