To make it possible to maintain a gargling bowl only by changing a cover member, eliminating the labor to wash the gargling bowl, and further prevent a gargling bowl from breaking by detachably covering the dental gargling bowl with the cover member.

Figure (A) shows the dental gargling bowl, figure (B) shows the gargling bowl cover. The cover member 31 is formed of a thin synthetic resin or paper, the shape of its lower outer surface conform to the inner surface shape of the gargling bowl 31, the cover member fits into the gargling bowl 31 and can be snugly received in the gargling bowl 31 when being inserted into the gargling bowl 31.