Figure 6.

bSEM of 7‐week mandibular incisor cross sections. These incisor cross sections show the enamel layer at a level near the crest of the alveolar bone (level 8), which is prior to eruption into the oral cavity but after the enamel has undergone extensive maturation. The enamel looks similar in the WT (+/+), heterozygous (+/Tr) and homozygous (Tr/Tr) mice. The enamel of the Fam83h ^Tr/Tr incisors appears to have normal centro‐labial thickness, rod patterns and degree of mineralization. The only difference is in the contour of the enamel as it approaches the lateral side, so that the enamel layer is thinner than normal as it approaches the lateral cervical margin