Table 2.
Overview of expression of E-cadherin in the different cell layers of a replacement tooth
| epithelium | mesenchyme | |||
|---|---|---|---|---|
| ide | ode | odontoblasts | dental papilla | |
| initiation | ++ | ++ | - | - |
| morphogenesis | ++ | ++ | - | - |
| early cytodifferentiation | ++ * | ++ * | - | - |
| late cytodifferentiation | ++ * | ++ * | - | - |
| attachment | ||||
The two layers of the enamel organ, IDE and ODE, maintain the expression of E-cadherin. The mesenchyme-derived dental papilla does not express this cell adhesion molecule during development. *: stronger expression of E-cadherin on the ventral side of the developing tooth.