PROBLEM TO BE SOLVED: To provide a dental instrument or kit by which a dental composition can be easily and smoothly filled into a minute defect part of a tooth without excessive labor.SOLUTION: The dental composition discharging nozzle member has a nozzle with 0.5 mm or smaller discharging port. The dental composition storage container kit comprises the dental composition discharging nozzle member and a dental composition storage container.COPYRIGHT: (C)2012,JPO&INPIT【課題】歯牙の微小欠損部に、容易且つ円滑に、余分な手間をかけずに歯科用組成物を充填することができる歯科用器具乃至はキットを提供すること。【解決手段】ノズルの吐出口内径が0.5mm以下である歯科用組成物吐出用ノズル部材およびそれと歯科用組成物収納容器よりなる歯科用組成物収納容器キット。【選択図】図1