Adjective
bucktoothed (comparative more bucktoothed, superlative most bucktoothed)
Having buckteeth
Clouseau also insists upon elaborate costumes and aliases that range from the mundane (a worker for the phone company) to the preposterous (a bucktoothed hunchback with an oversized nose); but these are usually overcome by his characteristic mannerisms. Source: Internet
Mickey Rooney's bucktoothed, myopic Japanese is broadly exotic. Source: Internet