Ameloblastoma is a type of growth or lesion in the mouth of a dog. Previously known as adamantinoma, it is an uncommon neoplasm that affects tooth structures in dogs. This tumor is mostly benign in nature and only locally invasive but in rare cases, a highly invasive, malignant form of this tumor is also found in dogs. The tumor can be present at any location within the dental arcade. Middle-aged and older dogs are most affected by this tumor.
A firm, smooth mass is the most obvious symptom for the tumor. Other common signs include halitosis (bad breath), oral bleeding, dental disruption or loss, facial deformity and salivation.