Bigeminy
Canine bigeminy example one
Canine bigeminy example two
Bigeminy includes both tooth fusion and tooth germination. Fusion arises through union of two normally separated tooth germs, and depending upon the stage of development of the teeth at the time of union, it may be either complete or incomplete. Germination arises when two teeth develop from one tooth bud, it appears that the dog or cat has an extra tooth, although they have a normal number of tooth roots.