Abstract: A lockable orthodontic appliance, comprising a main body. An arch wire groove is formed on the main body, the main body is provided with a movable accessory, the accessory comprises a traction portion and a space occupying portion, the accessory can move between an available position and an unavailable position, and during the movement, the traction portion can drive the space occupying portion to enter the arch wire groove; or a traction member and a space occupying member are provided on the main body, the traction member can move, and during the movement, the traction member drives the space occupying member to enter the arch wire groove. The orthodontic appliance may have a plurality of states, the first is a locked state, the second is a traction state, the third is a traction locked state, and the fourth is a non-locked and non-traction state.

Abstract: A buccal tube includes a main body. The main body is provided with a traction hook which can move or rotate relative to the main body, and the main body is internally provided with an accommodation space. When the traction hook is not in use, the traction hook is disposed in the accommodation space. When the traction hook is in use, one end of the traction hook outwardly rotates or moves away from the accommodation space.

Abstract: A packaging device containing at least one placing cavities and containers of orthodontic bracket. The containers of orthodontic bracket can be connected in series, and the containers of orthodontic bracket which have been connected in series can be placed in the placing cavities. The container of orthodontic bracket includes a placement portion, and the orthodontic brackets can be placed in the containers. The packaging device of the present invention provides containers that can specifically fix the orthodontics brackets and can be connected in series. The containers that have been connected in series can be placed in the placing cavities of the package to reduce space. The compact package is convenient for large-scale transportation.