Modelling pastes, including those put up for childrens amusement; preparations known as œdental wax or as œdental impression compounds, put up in sets, in packings for retail sale or in plates, horseshoe shapes, sticks or similar forms; other preparations for use in dentistry, with a basis of plaster (of calcined gypsum or calcium sulphate) :Modelling pastes, including those put up for childrens amusement.