The induction of odontogenesis in non-dental mesenchyme combined with early murine mandibular arch epithelium.

Heterotypic recombinations of mandibular arch and second branchial arch tissues showed that early mandibul arch epithelia, before day 12, have odontogenic potential and can elicit the formation of a dental papilla in non-odontogenic, neural-crest-derived mesenchymal cells of the second arch.