Table 1 Morphometric, densitometric and mechanical properties of mandibular deciduous incisors, canine and second premolar in 5 month old sheep

Weight (mg)

369^a ± 10

290^b ± 6

199^c ± 4

150^d ± 3

783^e ± 38

Length (mm)

28.00^a ± 0.48

25.57^b ± 0.48

22.28^c ± 0.18

19.00^d ± 0.31

19.57^d ± 0.37

Total tooth volume (cm³)

0.249^a ± 0.006

0.203^b ± 0.004

0.147^c ± 0.003

0.113^d ± 0.002

0.491^e ± 0.023

Total enamel volume (mm³)

17.82^a ± 1.02

17.88^a ± 0.79

12.69^b ± 0.54

10.62^b ± 0.37

40.77^c ± 3.35

Total dentine volume (mm³)

161.02^a ± 5.09

124.16^b ± 3.72

84.31^c ± 2.66

63.15^c ± 2.24

329.88^d ± 17.73

Mean volumetric tooth mineral density (g/cm³)

3.054 ± 0.037

2.982 ± 0.041

2.947 ± 0.041

2.959 ± 0.043

2.973 ± 0.028

Volumetric enamel mineral density (μg/mm³)

2.402 ± 0.00004

2.467 ± 0.06546

2.402 ± 0.00003

2.402 ± 0.00004

2.402 ± 0.00005

Volumetric dentine mineral density (μg/mm³)

2.154^a ± 0.031

2.044^b ± 0.019

2.048^b ± 0.025

2.096^ab ± 0.057

2.068^ab ± 0.016

Maximum elastic strength (N)

274^a ± 15

212^b ± 13

169^c ± 17

111^d ± 17

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Ultimate force (N)

350^a ± 22

266^b ± 18

201^c ± 15

158^d ± 15

957^e ± 83