A kind of tooth mould pedestal of what is closed in this creation, the side wall of a radian is upwardly extended and had including bottom wall, from aforementioned bottom wall side edge, aforementioned tooth mould pedestal is additionally provided with from aforementioned bottom wall and upwardly extends the simultaneously tooth die cavity between the partition and position what aforementioned separator plate and side wall of position what aforementioned lateral wall inside, and the joining place or aforementioned separator plate of aforementioned bottom wall and side wall and the joining place of bottom wall are provided with protrusion. Aforementioned tooth mould can be consolidated effectively and be positioned in the aforementioned tooth die cavity of what by aforementioned tooth mould pedestal, and be can be avoided and carried out generating relative displacement when occlusion test in the aforementioned tooth mould pedestal of aforementioned tooth mould what.本創作關於一種牙模底座,包括底壁、自前述底壁側邊緣向上延伸且具有一弧度之側壁,前述牙模底座還設有自前述底壁向上延伸並位於前述側壁內側之隔板及位於前述隔板與側壁之間之牙模腔,前述底壁與側壁之銜接處或者前述隔板與底壁之銜接處設置有凸出部。前述牙模底座能夠有效之將前述牙模穩固和定位於前述牙模腔內,且能夠避免前述牙模於前述牙模底座內進行咬合測試時產生相對位移。