Chapter 7
•
Head
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(A)
(B)
(C)
(D)
(E)
Socket for M1
Central and lateral incisors
M3
M3
M3
M3
M2
M2
M2
M2
M2
M2
M2
M2
M2
M2
M2
M2
M2
M1
M1
M1
M1
M1
M1
M1
M1
M1
M1
M1
M1
M1
C
C
Canine
Canine
Canine
Canine
Canine
Canine
Central incisors Lateral incisors
Incisors
Pm2
Pm2
Pm1
Pm1
Incisor 1 Incisor 2
Primary dentition, < 2 years
Age: 6–7 years
Age: 8 years
Age: 12 years
Molar
M =
Pm = Premolar
Permanent teeth
Deciduous teeth
Interradicular septa of tooth socket
Interalveolar septum
FIGURE 7.81.
Primary dentition (deciduous teeth) and eruption of permanent teeth.
TABLE 7.13A.
DECIDUOUS TEETH
Deciduous Teeth Central Incisor Lateral Incisor Canine 1st Molar 2nd Molar
Eruption (months)
a
6–8
8–10
16–20 12–16
20–24
Shedding (years)
6–7
7–8
10–12 9–11
10–12
a
In some normal infants, the first teeth (medial incisors) may not erupt until 12–13 months of age.
Permanent Teeth Central Incisor Lateral Incisor Canine
1st
Premolar
2nd
Premolar 1st Molar 2nd Molar 3rd Molar
Eruption (years)
7–8
8–9
10–12 10–11
11–12
6–7
12
13–25
TABLE 7.13B.
PERMANENT TEETH
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