The dental medical tool of this creation,It include a dental medical tool ontology and a control valve； Wherein,Dental medical tool ontology at least provided with a leading portion water-supply-pipe and Hou section water-supply-pipe,And it is equipped with a valve pool,A control valve is equipped in valve pool,Control valve is equipped with a first passage and second channel,Control to enable the leading portion water-supply-pipe and Hou section water-supply-pipe of first passage conducting mobile phone body by the rotation of control valve,So that selection uses the water source of instrument table； Also,Control to enable the leading portion water-supply-pipe of second channel connection mobile phone body by the rotation of control valve,Second channel one sterile water of guiding or liquid medicine is set to enter dental medical tool ontology,So that select to use via doctor in diagnosis and treatment process,And then help what medical procedure it is more smooth,It is convenient.本創作之牙醫手機，包含有一牙醫手機本體及一控制閥；其中，牙醫手機本體至少設有一前段輸水管與後段輸水管，並設有一閥槽，閥槽內設有一控制閥，控制閥設有一第一通道與第二通道，藉由控制閥之旋轉控制得令第一通道導通手機本體之前段輸水管與後段輸水管，俾能選擇使用治療台之水源；又，藉由控制閥之旋轉控制得令第二通道連通手機本體之前段輸水管，使第二通道得以導引一無菌水或藥水進入牙醫手機本體，俾能在診療過程中經由醫師選擇使用，進而有助於醫療過程更為順利、方便。
