Skip to main content

Table 6 Associations between the emergence of each tooth type and growth rates from birth to 3 months

From: Association of infant growth with emergence of permanent dentition among 12 year-aged southern Chinese school children

Tooth type

Mean Growth rate from birth to 3 monthsa (SD)

p

Complete emergence

Incomplete emergence

Maxillary

 Central incisor

0.25

(0.89)

 Lateral incisor

0.25

(0.89)

0.29

(0.57)

0.917

 Canine

0.23

(0.88)

0.51

(1.01)

0.083

 1st premolar

0.25

(0.89)

0.24

(0.97)

0.981

 2nd premolar

0.24

(0.89)

0.28

(0.91)

0.799

 1st molar

0.25

(0.89)

0.69

0.618

 2nd molar

0.17

(0.91)

0.35

(0.85)

0.029*

Mandibular

 Central incisor

0.25

(0.89)

0.20

(0.75)

0.882

 Lateral incisor

0.25

(0.89)

0.32

(0.67)

0.780

 Canine

0.25

(0.89)

0.13

(1.12)

0.737

 1st premolar

0.24

(0.89)

0.36

(0.73)

0.596

 2nd premolar

0.25

(0.90)

0.19

(0.77)

0.621

 1st molar

0.25

(0.89)

0.06

0.831

 2nd molar

0.22

(0.90)

0.34

(0.83)

0.256

  1. aGrowth rate from birth to 3 months = weight z-score – birth weight z-score
  2. Two sample t-test; *p < 0.05