Orthodontic Bracket with Smooth Curved Covering Part

The patent extracts the harmful protruding limbs from the bracket design while retaining the essential ligation function through the archwire slot and cover mechanism. The covering part can be opened to allow archwire insertion and closed to provide ligation, eliminating the need for protruding limbs that cause mucosal irritation.

Instead of using protruding limbs to achieve ligation, the patent inverts the approach by using a recessed slot with a movable cover. The ligation function is achieved by the cover closing over the slot rather than by protruding elements, thus eliminating the harmful effect while maintaining the useful function.

The patent applies curved surfaces to the bracket body and covering part, creating a smooth, rounded profile that prevents food particles from being trapped. The curved design eliminates sharp corners and protrusions where plaque and tartar would accumulate, making the bracket easier to clean while maintaining structural integrity.

The patent converts the potential harm of food retention into a benefit by designing a smooth surface that actively prevents food accumulation. The curved geometry and lack of protruding limbs transform the bracket from a food-trapping structure to one that facilitates oral hygiene.

The patent divides the bracket into two separate components: a bracket body and a covering part. This segmentation allows each part to be manufactured separately with standard processes, and the curved surfaces can be formed using conventional molding techniques. The separate pieces can then be assembled through simple engagement features.

The patent changes the geometric parameters of the bracket surfaces from sharp-edged and angular to curved and rounded. These parameter changes can be achieved through standard CNC machining or molding processes, making the smooth surface design compatible with existing manufacturing capabilities while improving comfort and cleanability.