The creative department provides an improved structure of butterfly tip brush,Used especially in the crevices of teeth,The utility model comprises a holding rod,There is a front end at one end；further more,The grip rod of the invention comprises a projection part adjacent to the front end part and at least a depression part,The convex part adjacent to the concave part is additionally provided with a plurality of arc concave convex lines on both sides；At least one butterfly head,Attached to the front end of the grip bar,The butterfly head comprises a central bristle arranged on both sides of the front end part of the holding rod and at least two side bristles adjacent to the central bristle,The central bristle is the longest,The side bristles of adjacent central bristles shorten the length in order and make them arc-shaped.With this structure, it can be applied to all kinds of teeth, and the dirt and food debris of the teeth can be simply hooked out, so as to keep the teeth clean and sanitary, avoid periodontal disease, and improve the use convenience and grip strength.本創作係提供一種蝴蝶狀牙尖刷改良結構，尤指用於牙齒之齒縫，其包括︰一握持桿，於其一端設有一前端部；更進一步，本創作其握持桿包含一鄰接前端部之凸出部及至少一凹陷部，而鄰接於凹陷部之凸出部其兩側另設有多個弧形凹凸紋；至少一蝴蝶狀頭部，係設於握持桿其前端部，該蝴蝶狀頭部包含一設於握持桿其前端部兩側之中央刷毛及鄰設中央刷毛之至少二側刷毛，該中央刷毛長度最長，而鄰設中央刷毛其側刷毛則依序縮短長度並使其呈弧形狀。藉此結構，可適合各種牙齒之大小齒縫，並將齒縫之污垢及食物殘屑簡易鉤出，保持其乾淨衛生及避免發生牙周病，並提升其使用方便性及握持力。
