The cost of filling a cavity varies slightly depending on the material and the origin of the material. It is roughly divided into the following categories: i. The cheapest 3M glass ionomer, which costs about 150 RMB. Second, the imported Kuraray resin filling material made in Japan, the cost is about 350 yuan. Third, the American-made Cole resin filling material, the cost is about 450 yuan. Fourth, the Italian-made Mepore resin filling material, the cost is about 900 RMB. The depth of the cavity is different, if the depth of the cavity is close to the nerve, it needs to do some protection, also called bedding material, the cost is about RMB 80 Yuan per tooth.