PROBLEM TO BE SOLVED: To provide a dental implant with enhanced quality of synostosis and enhanced quantitative effect.SOLUTION: The dental implant includes: a columnar fixture 10 with a first terminal end 11 and a second terminal end 12 asymmetrical screw threads 20 surrounding the fixture a tip fixing part 30 located in the first terminal end 11 to be inserted into an appropriate region in a paranasal sinus and a fixing part 40 located in the second terminal end 12 and coupled with an abutment by a bolt to maximize the internal contact. The fixture 10 has a circular cross section from the first terminal end 11 to the second terminal end 12. The tip fixing part 30 is located in the first terminal end 11, and composed so that the fixture 10 and the bone are tightly coupled with each other. The fixing part 40 with the maximized internal contact has a fixing hollow and a fixing opening 44. The fixing part 40 is located in the second terminal end 12 and coupled with the root of the abutment. A fixing frame 43 of the fixing part with the maximized internal contact has six fitting grooves 431, and is composed to correspond to three fitting projections projecting from the root of the abutment.COPYRIGHT: (C)2011,JPO&INPIT【課題】骨結合の質及び量的効果を高めた歯科インプラントを提供する。【解決手段】円柱形で第1末端11及び第2末端12を有するフィクスチャー10と、フィクスチャーを取り巻く非対称のねじ山20と、第1末端11に位置し、副鼻腔の適当な部位に挿入される先端固定部30と、第2末端12に位置し、ボルトによってアバットメントと結合して内部接触を最大化した固定部40とを備え、フィクスチャー10は、第1末端11から第2末端12に至る円形の横断面を有し、先端固定部30は、第1末端11に位置し、フィクスチャー10及び骨が緊密に結合するように構成され、内部接触を最大化した固定部40は、固定空洞及び固定開口部44を有し、第2末端12に位置し、アバットメントの根元と結合し、内部接触を最大化した固定部の固定枠43は6個の嵌合溝431を有し、アバットメントの根元に突設した3個の嵌合突起に対応して構成される。【選択図】図1
