【Task】 By attaching it only to the first molar of a person's lower jaw and clenching it, the root of the first molar stimulates the mandibular nerve, which is part of the trigeminal nerve, and retracts the mandible due to the contraction of the posterior temporal muscle. By inducing somatic reflexes, the position of the cervical spine and spine is optimized, and the descending movement chain of various muscles on the back side is generated to correct the posture of the body and prevent various diseases caused by the straight neck. We will provide a mouthpiece that can improve muscle output as well as improve it. SOLUTION: It is provided with an elastic coating that adheres to and covers the occlusal surface of only the left and right first molars of the human mandible, and consists of a pair of crown coverings that can be attached to the crown of the first molar. A mouthpiece that is integrally molded with silicon rubber. [Selection diagram] Fig. 5【課題】人の下顎の第一大臼歯のみに装着して噛み締めることで、第一大臼歯の歯根により三叉神経の一部である下顎神経に刺戟を与え、側頭筋後部の収縮による下顎骨を後退させる体性反射を惹起させることで、頚椎・脊椎の位置を適正化するとともに、背中側の各種筋肉の下行運動連鎖を生じさせて身体の姿勢を矯正し、ストレートネックに起因する各種疾患の防止・改善とともに、筋出力の向上も図れるマウスピースを提供する。【解決手段】 人の下顎の左右の第一大臼歯のみの咬合面に密着してこれを被覆する弾性を有する被覆体を備え、第一大臼歯の歯冠に被着可能な一対の歯冠被せ体からなるシリコンゴムで一体成型して成るマウスピース。【選択図】 図５
