PROBLEM TO BE SOLVED: To provide dental equipment preventing ununiformity of pressure and flow rate of discharged liquid due to aeration at during liquid injection from a liquid bottle.SOLUTION: Dental equipment includes: a liquid bottle 10 accommodating liquid supplied to a dental hand piece； a bottle mounting member 41 mounting thereon a coupling member (a cap member 20, fluid and aeration circuit member 21, and check valve accommodation body 22) mounted on the liquid bottle 10； a fluid passage supplying liquid from the liquid bottle 10 to the dental hand piece； an air passage； and a pump discharging the liquid toward the fluid passage. The coupling member includes: a fluid intake port (through-hole 25a) communicating with the fluid passage and opening in a vertical direction in the center of the liquid bottle 10； and an aeration opening 36 extending in a direction separating to an outer periphery side of the liquid bottle 10 with respect to the fluid intake port and opening in an end of the air passage.SELECTED DRAWING: Figure 4
