An tooth placode is a thickening of the ectoderm that will give rise to the tooth bud[GO].
Comment:
[location-note] "In mammals this may be located in the alveolar ridges, but note that some species such as zebrafish have ceratobranchial teeth. Sharks have dermal denticles that share developmental origins. Currently we don't include location information due to this diversity, but in future we may include specific subclasses and/or taxon GCIs."