This creation system is a kind of dental scaler, includes a fixing seat, front cover, elastic slice, line wheel and a roll of terminal; Wherein, fixing seat front end forms ㄇ shape opening, and fixing seat is equipped with metallic channel, enables dental floss can be across setting in what fixing seat according to the guiding of metallic channel; Front cover and cover set in what fixing seat, between front cover and fixing seat be equipped with elastic slice and line wheel, line wheel can by elastic slice thrust and attach what fixing seat inner sidewall; Thereby, in order to providing, one kind is stretchable to replace dental floss use and with the dental scaler of ease of use.本創作係為一種潔牙器,包含有一固定座、前蓋、彈片、線輪與一捲線柱;其中,固定座前端形成一ㄇ形開口,固定座上設有導線槽,令牙線可依導線槽之導引而可跨設於固定座上;前蓋並蓋設於固定座上,前蓋與固定座間設有彈片與線輪,線輪可受彈片之止推而貼附於固定座內側壁;藉此,俾提供一種可拉伸更換牙線使用且具有使用方便性之潔牙器。