E-cadherin expression pattern during tooth replacement. Sections of whole mount immunocytochemical examination of dissected adult jaw. A, A': Successional dental lamina is positive for E-cadherin; B: Morphogenesis phase; C: Early cytodifferentiation, IDE and ODE express E-cadherin; D: Late cytodifferentiation. *: dental papilla; arrowhead: enamel organ; c: crypt slightly posterior to the tip of the functional predecessor; L: lateral; M: medial. Scale bars = 50 μm, scale bar A' = 25 μm.