▎ 摘　　要

NOVELTY - Modified dental implant comprises implant base material and modified graphene-nano titanium oxide composite layer coated on the surface of the implant base material. USE - As modified dental implant. ADVANTAGE - The modified dental implant ensures excellent biological activity while ensuring excellent biological activity of the implant substrate, improves the strength and osseointegration capacity, and improves the success rate of implantation. The method reduces the adsorption and binding effect between layered graphene molecules, improves the force between adjacent molecules, increases the firmness, and uses nano-modification treatment of titanium oxide to improve the network cross-linking degree of nano-titanium oxide, reduce pores, and promotes the mutual penetration of nano-titanium oxide and modified graphene. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the modified dental implant, involving (i) printing implant base material with a three-dimensional (3D) printer, (ii) mixing modified graphene and nano-titanium oxide, adding a dispersant, and performing dry ball milling to obtain a modified graphene-nano-titanium oxide composite coating, (iii) uniformly rotating and spraying the modified graphene-nano-titanium oxide composite coating on the surface of the implant substrate, and naturally drying to prepare modified dental implant, and (iv) placing the modified dental implant in a muffle furnace for calcination, cooling, cleaning and drying to obtain the finished implant.