< Topic >The upper jaw and the ku by the mandible it is and it offers the sprint which can prevent binding securely.SolutionsArdently, as the front canning section 11 canning the front of the gearwheel T1 and, it is formed in the rear canning section 12 ardently canning the rear of the gearwheel T1 and specified thickness front canning section concatenates the bottom of 11 and rear canning section 12, it has with the Tip canning section 13, ardently canning the Tip of gearwheel T1 it installs with the feature which Inlaying entrance it can point in the space which upper gnathal side ardently is surrounded gearwheel T1 tip surface canning section 11, rear canning section 12, by Tip canning section 13. Because of this because upper gnathal side ardently gearwheel T1 and mandibular side ardently the gearwheel upper gnathal side ardently gearwheel T1 and mandibular side specified interval is guaranteed ardently between the gearwheels by being laid out across the Tip canning section 13 of specified thickness, attendant upon this upper gnathal side molar T3 and the mandibular side molar alienation state can do, the upper jaw and the ku by the mandible it is and it is possible to prevent binding securely.< Choice figure >Drawing 1【課題】上顎と下顎によるくいしばりを確実に防止することができるスプリントを提供する。【解決手段】切歯T1の前面を被覆する前面被覆部11と、切歯T1の後面を被覆する後面被覆部12と、所定の厚みで形成され前面被覆部11と後面被覆部12の下端部同士を連結するとともに、切歯T1の先端部を被覆する先端被覆部13とを備え、上顎側切歯T1を先面被覆部11、後面被覆部12、先端被覆部13により囲まれた空間に嵌入させる態様で装着する。これにより上顎側切歯T1と下顎側切歯が所定の厚みの先端被覆部13を隔てて配置されることにより、上顎側切歯T1と下顎側切歯の間に所定の間隔が確保され、これに伴い上顎側臼歯T3及び下顎側臼歯同士が離間状態となされるため、上顎と下顎によるくいしばりを確実に防止することができる。【選択図】図1
