The present invention relates to a denture support of the denture implant assembly, the purpose of which is to allow the snap protrusions protruding along the upper circumferential surface of the denture support to be worn out and extend outward with a simple operation, thereby enabling the effectiveness of an expensive denture bark body. It is to improve the life and greatly reduce the maintenance cost of dentures, the configuration of which is an implant member (Implant Fixture, or artificial root (Dental Implant)) having a female thread formed concave in the upper surface, and the implant member at the lower end A male screw part screwed with the female screw part and an upper part of the upper part integrally having a snap protrusion formed convexly outwardly, the denture support mounted on the upper surface of the implant member, and mounted on the lower surface, and the snap protrusion of the denture fixture In the denture implant assembly consisting of a denture having a denture fixture, which is a snap fastener that is detachably snap-coupled, in the denture implant assembly, the denture support has an inverted truncated cone shape in the center of the bottom surface of the fastening jig assembly groove concavely formed on the upper surface. A female thread for expansion having a longitudinal cross-section and concavely formed; It has a threaded portion having a conical shape, and has an expansion male screw detachably screwed with the expansion female thread; It is characterized in that the outer circumferential surface of the upper end side of the denture fixing body extends outward as the male screw for expansion is assembled deeply into the female screw for expansion by rotating the male screw for expansion.본 발명은 틀니 임플란트 어셈블리의 틀지지지체에 관한 것으로, 그 목적은 틀니지지체의 상단부 외주면을 따라 돌출형성된 스냅돌부가 마모되었을 때, 간단한 조작만으로 외향으로 신장될 수 있도록하여 하므로서, 고가의 틀니짖체의 유효수명을 향상시켜 틀니의 유지비용을 크게 절감할 수 있도록 하는 것이며, 그 구성은 상면부에 오목하게 형성된 암나사부를 갖는 임플란트 부재(Implant Fixture, 또는 인공치근(Dental Implant))와, 하단부에