A kind of replaceable dental gap cleaner structure system include one first shell,One second housing and a wire spool,The fixed what of the second housing first shell,Make this first,Winding slot before three winding slots are combined into one,This second,Four winding slots are combined into a Hou winding slot,This first,Two accommodating space leading portions are combined into a dental floss channel,This first,The two tongue fur portions of striking off are combined into a tongue fur and strike off portion,This first,Two grip parts are combined into a grip part,Two end of wire spool distinguish fitting what this first,Two fixing axles,Its periphery winds a dental floss,The dental floss is unclamped by the preceding winding slot,The a bit of dental floss is pulled out again,It is set first to wind the what preceding winding slot,The what Hou winding slot is wound again,The i.e. hand-holdable grip part,Through before this,Dental floss between Hou winding slot is purged the work of teeth space swill.一種可替換式牙縫清潔器結構係包括一第一外殼、一第二外殼及一繞線盤,該第二外殼固設於該第一外殼,使該第一、三繞線槽結合成一前繞線槽,該第二、四繞線槽結合成一後繞線槽,該第一、二容置空間前段結合成一牙線通道,該第一、二舌苔刮除部結合成一舌苔刮除部,該第一、二握持部結合成一握持部,該繞線盤二端分別套合於該第一、二固定軸,其外周纏繞一牙線,將該牙線由該前繞線槽鬆開,再拉出一小段該牙線,使其先纏繞於該前繞線槽,再纏繞於該後繞線槽,即可手持該握持部,透過該前、後繞線槽間之牙線進行清除牙縫食物殘渣的工作。