The present invention relates to a dental prosthesis comprising: at least one inner crown and at least one outer crown. The inner crown has a first end and a second end. The first end of the inner crown is provided with a fixing portion, and the second end is provided with a fastening portion and a supporting portion. The outer crown has a joint surface and a nip surface. The joint surface is provided with a fastening portion and a joint portion for fastening the fastening portion of the inner crown body. The support portion of the inner crown. Thereby, the support portion can effectively buffer and disperse the lateral pressure generated by the outer crown due to chewing, and the disassembly and assembly structure formed by the fastening portion and the fastening portion can facilitate the denture and Cleaning of the root root gums.
