Non-humans
It is commonly seen in Boxer dogs and other brachycephalic breeds, and in the English Springer Spaniel. It usually starts around middle age and progresses. Some areas of the gingiva can become quite large but have only a small attachment to the rest of the gingiva, and it may completely cover the teeth. Infection and inflammation of the gingiva is common with this condition. Under anesthesia, the enlarged areas of gingiva can be cut back with a scalpel blade, but it usually recurs. Gingival enlargement is also a potential sequela of gingivitis. As in humans, it may be seen as a side effect to the use of ciclosporin.
Read more about this topic: Gingival Enlargement