Table 1.

Final summary data for mandibular incisor cross‐sections cut at Level 8a (grand means ± SD)

1. Enamel thickness	121 ± 2.7 μm
Inner enamel layer	100.0 ± 2.6 μm (83%)
Outer enamel layer	21.0 ± 2.1 μm (17%)
2. Total number of rod profiles in cross‐section	7233 ± 575
Inner enamel layer	5096 ± 395 (70%)
Number with mesial tilt	2687 ± 232
Number with lateral tilt	2409 ± 204b
Outer enamel layer	1922 ± 191 (27%)
Sites near CEJs	216 ± 56 (3%)
3. Per cross‐section:
Total number of rows (inner enamel)	124 ± 15
Number with mesial tilt	62 ± 7
Number with lateral tilt	62 ± 9

^aNear gingival margin at labial aspect of incisor; n = 24 incisors from 18 mice.

^b P < 0.0001.