Abstract: The embodiment of the present disclosure relates to the technical field of orthodontic, in particular to an extractor, which comprises a grip hook and a dismounting hook, wherein the dismounting hook comprises a hook-shaped member and an elongated member. One end of the elongated member is connected to the grip hook, and the other end of the elongated member is connected to the hook-shaped member. The hook-shaped member is used for hooking a brace, so as to separate the brace from teeth. By the aforesaid way, the extractor hooks the brace, and fingers apply acting force downwards or upwards to enable the brace to be gradually separated from teeth, so that the brace is picked down, and the risk of deformation or breakage during removal of the brace is reduced.

Abstract: A prophylaxis angle that is configured to be attached to and operated by a powered dental handpiece. The prophylaxis angle includes a cup having a first end and a second end. The first end is couplable to the dental handpiece and at least one projection is at the second end of the cup.

Abstract: A prophylaxis angle that is configured to be attached to and operated by a powered dental handpiece. The prophylaxis angle includes a cup having a first end and a second end. The first end is couplable to the dental handpiece and at least one projection is at the second end of the cup.