The present invention is a water supply structure for a dental scaler comprising a body, a tooth cleaning element and an adapter element； wherein the body is provided with a movement inside, the front end of the movement forms a screw end, the tooth cleaning The inside of the component is provided with a water spray hole, and the rear end of the tooth cleaning component forms a screwing end. The adapter component has at least a first screwing end, a second screwing end and a connecting end, and the first screwing end can be The screw end of the front end of the movement is screwed together, and the second screw end is screwed together with the screw end of the rear end of the cleaning element, and the second screw end is provided between the second screw end and the connecting end. a connecting pipe, the connecting end can be sleeved with a sterile water (or syrup) conveying pipe； thereby, a sterile water (or syrup) can be conveniently provided by the water spraying channel of the cleaning element to improve the cleaning of the tooth The use of the machine is more hygienic and safe.本創作係為一種牙科用潔牙機之給水構造，包含有一機體、潔牙元件及一轉接元件；其中，該機體內部設有一機芯，該機芯前端形成一螺合端，該潔牙元件內部設有一噴水孔道，該潔牙元件後端形成一螺合端，該轉接元件至少具有一第一螺合端、第二螺合端及一啣接端，該第一螺合端可與機芯前端之螺合端相互旋鎖在一起，該第二螺合端可與潔牙元件後端之螺合端相互旋鎖在一起，該第二螺合端與啣接端間設有一連通的管道，該啣接端可套接一無菌水(或藥水)輸送管；藉此，可方便的提供一無菌水(或藥水)由潔牙元件之噴水孔道噴出使用，以提高潔牙機之使用更具衛生性及安全性。
