Everyone can easily insert a filling aid around the epiglottis with a closure aid. The closing aid (1) has a rod-shaped curved portion (10) formed in a curved shape corresponding to the shape of the palate from the oral cavity to the pharynx, a rod-like bending portion (10) continuous with one end of the bending portion A pressing portion (20) having a surface wider than the end surface of the bending portion (10), a holding portion (30) continuing to the other end of the bending portion (10) and being a portion gripped by hand, and a curved portion And a filler insertion (40) continuous with a grip portion (30) on the side opposite to the side where the side of the stuffing unit (10) is continuous, and formed into a flat plate shape. First, the operator pushes the stuffing from the mouth of the body to the vicinity of the boundary between the oral cavity and the pharynx at the distal end portion of the stuffing insertion portion (40). Next, the operator inserts the pressing part (20) and the bending part (10) along the mouth of the body from the mouth of the body and inserts the filling put in the vicinity of the boundary between the mouth cavity and the pharynx to the distal end face of the pressing part (20) And push it in place to place the stuff around the epiglottis.誰でも簡単に詰め物を喉頭蓋の周囲に挿入することができる閉口補助具を提供する。この閉口補助具(1)は、口腔から咽頭にかけての口蓋の形状に対応して湾曲した形状に形成された棒状の湾曲部(10)と、湾曲部(10)の一方の端に連なり、先端面が湾曲部(10)の端面よりも広く形成された押圧部(20)と、湾曲部(10)の他方の端に連なり、手で掴む部分である把持部(30)と、湾曲部(10)が連なる側と反対側の把持部(30)に連なり、平坦な板状に形成された詰め物挿入(40)とを備える。まず、作業者は詰め物挿入部(40)の先端部で詰め物を遺体の口から口腔と咽頭との境界付近に押し入れる。次に、作業者は押圧部(20)及び湾曲部(10)を遺体の口から口蓋に沿って挿入し、口腔と咽頭との境界付近に入れられた詰め物を押圧部(20)の先端面で押圧して押し込むことにより詰め物を喉頭蓋の周囲に配置する。