Figure 4.

MicroCT Analyses of D14 Mandibular Molars. Day 14 precedes slightly the eruption of the first molar into function, before the potential effects of attrition on the volumes of enamel and dentin can occur. No statistically significant molar volumes were observed between the Fam83h ^+/+ and Fam83h ^+/Tr and are not displayed. Total molar volume was reduced in the Fam83h ^Tr/Tr to 84% that of the wild‐type. The volume of dentin was reduced by a lesser amount (to 87%), indicating that part of the total volume reduction was due to an overall reduction in tooth size. The volume of enamel was reduced in the Fam83h ^Tr/Tr to 62% that of the wild‐type indicating that most of the reduction in molar size was due to a reduction in enamel volume