Orthodontic self-locking system adapted to strip-shaped arch wire

Abstract

The invention relates to an orthodontic self-locking system adapted to a strip-shaped arch wire. The system comprises the strip-shaped arch wire and a bracket matched with the strip-shaped arch wire,an arch wire groove is transversely formed in the bracket, an upper single wing is arranged at the upper portion of the arch wire groove, a lower single wing structure is arranged at the lower portionof the arch wire groove, a sliding cover is installed on the lower single wing structure, and the sliding cover is in sliding fit with the lower single wing structure. The lower single wing structureis provided with a fixing base, at least one end of a straight elastic wire can be bent and deformed, a fixing base receding cavity is formed at the bottom of the sliding cover, and a mousing hook and a limiting convex rib are arranged at at least one side of the fixing base receding cavity. After the sliding cover is closed, the lower single wing structure and the tail part of the sliding coverjointly form a round lower single wing. By innovatively designing the self-locking structure between the bracket and the sliding cover, the self-locking structure and an elastic piece thereof are simplified, the manufacturing difficulty and the manufacturing cost are reduced, and the self-locking stability and reliability of the self-locking structure are improved. The system is round and attractive in appearance, comfortable to use, capable of reducing impact of food on the bracket and teeth, capable of avoiding wing breakage and capable of reducing tooth abrasion.

Description

technical field [0001] The invention relates to the technical field of dental orthodontics, in particular to an orthodontic self-locking system adapted to a strip-shaped arch wire. Background technique [0002] Brackets are an important part of orthodontic correction. During traditional orthodontic treatment, the orthodontist sticks the brackets on the patient's teeth and places the archwires in the archwire grooves of the brackets. The tooth exerts force to move the tooth into the correct position. [0003] The traditional bracket has no specific limit for the archwire, and only auxiliary tools such as ligature wire can be used to bind the ligature wing of the bracket so that the archwire remains in the bracket. Due to the small size of the bracket, it is difficult for orthodontists to apply the ligature wire, and the ligature process of the ligature wire is not only time-consuming and laborious, but also highly dependent on the doctor's proficiency. In order to solve thi...

AI Technical Summary

Problems solved by technology

[0004] However, the self-locking structure design of the cover body of most self-locking brackets is relatively complicated, especially in the design of various complex elastic parts

Because the bracket structure itself is very small, the overly complicated self-locking structure and its elastic parts not only increase the difficulty in manufacturing, but also increase the defective rate of the product. Not only the manufacturing accuracy cannot be achieved, but also it is easy to cause the bracket cover to automatically The lock fails or even falls off

Moreover, for self-ligating brackets, the existence of the traditional four outstretched ligature wings will inevitably form more prominent sharp parts around the bracket body, which will easily cause oral discomfort of the user and poor comfort.

And in terms of resisting food impact, the sharp shape of traditional self-ligating brackets will not only increase the impact of food, but its outwardly spread ligation wings are not only vulnerable to food impact and cause wing breakage, but also easily damage teeth due to impact wear

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