The present invention relates to a teeth washer structure, which includes: a guiding tube and an ejecting tube the guiding tube includes a connection part, a tube body, an engage part and a first flow channel formed therein, a surface of the connection part is formed with a thread, and the portion of the first flow channel defined in the engage part is formed with a gradually-shrinking structure. One end of the ejecting tube is formed with a water inlet part connected to and communicated with the connection part in a watertight manner, another end thereof is disposed with an ejecting nozzle, the end of the ejecting tube where the ejecting nozzle is disposed is formed with a bendable structure, the interior of the ejecting tube is formed with a second flow channel mutually communicated with the first flow channel.本創作為一種沖牙器結構,其包括:導管以及噴管,導管具有連結部、管體、接合部及內部之第一流道,連結部表面並具有螺紋,其中第一流道於接合部內之部份係形成為漸縮結構。噴管之一端為與接合部水密導通結合之進水部,另一端為噴嘴,噴管於噴嘴之一端並係形成為一彎曲結構,噴管內並設有與第一流道相互連通之第二流道。藉由本創作之實施,沖牙器結構不但製造簡單,成本低廉;體積小、輕量化,具有良好的攜帶及使用方便性;使用者並可以隨時隨地自行與蓮蓬頭的水管結合使用。沖牙器結構內水流之流道的造型,更能使沖牙器結構不須額外加壓即能形成強力水柱,應用於牙齒醫學用途上,可以使沖牙器結構更方便使用與替換。100‧‧‧沖牙器結構10‧‧‧導管11‧‧‧連結部111‧‧‧螺紋12‧‧‧管體13‧‧‧接合部20‧‧‧噴管21‧‧‧進水部22‧‧‧噴嘴31‧‧‧第一流道32‧‧‧第二流道