PROBLEM TO BE SOLVED: To provide an instrument for caring for gums by vibration. A base portion curved in a horseshoe shape along a dentition so as to be bitten between the upper and lower teeth of a person, and an outer side positioned outside the base portion so as to cover the labial-buccal side of the dentition. Portion, an inner portion located inside the base portion so as to cover the lingual side of the dentition, and a protruding portion protruding from the front side of the outer portion toward the outside of the lip. And a gum vibrating oral cavity care device 10 including a vibration imparting device 60 that is connected to the protrusion and that imparts vibration to upper and lower gums in the dentition, which corresponds to the tooth bite surface of the dentition in the base portion. A continuous opening is provided along the tooth row at the position where the line is formed. [Selection diagram] Figure 1【課題】振動により歯茎へのケアを行う器具を提供する。【解決手段】人の上下歯の間に噛み込まれるように歯列に沿って馬蹄形状に湾曲するベース部と、前記歯列の唇頬側を覆うように前記ベース部の外側に位置する外側部と、前記歯列の舌側を覆うように前記ベース部の内側に位置する内側部と、前記外側部の前方側から唇の外方へ向けて突出する突出部と、を有する装着部２０、及び、前記突出部に接続され前記歯列における上下の歯茎に振動を付与する振動付与装置６０を備える歯茎振動口腔ケア器１０であって、前記ベース部において前記歯列の歯咬面に対応する位置には前記歯列に沿って連続した開口部が設けられている。【選択図】図１
