A denture is provided to make a molar among artificial teeth perform a function of grinding food completely and easily by forming plural grooves on an upper surface of the molar among artificial teeth. The denture includes a frame(10) and artificial teeth(20). The frame(10) is formed in the shape of a mouth. The artificial teeth(20) are fixed on an inner edge of the frame(10) and forms front teeth(21), dog teeth(22) and molars(23). Plural grooves(30) are formed on an upper surface portion of the molar(23) among the artificial teeth(20). Plural straight line grooves are formed to cross each other based on an approximate center of the upper surface of the molar to form grooves(30). Plural straight line grooves are formed to be parallel to each other to form grooves.
