Skeletal III-type malocclusion appliance
An orthodontic device and malocclusion technology, applied in the field of medical appliances, can solve problems such as excessive opening and closing of front teeth, unsightly appearance, uncontrollable thickness of permanent magnets, etc., and achieve the effect of easy promotion
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Embodiment 1
[0034] Such as figure 1 As shown, the present invention includes an upper conjoined crown 1 set on the upper molars, and a lower conjoined crown 2 placed on the lower molars. A first permanent magnet 3 is fixed on the buccal side of the upper conjoined crown 1, and a first permanent magnet 3 is fixed on the buccal side of the lower conjoined crown 2. The buccal side is fixed with a second permanent magnet 4, in the state where the upper and lower rows of teeth are closed, that is, in the figure 1 In the state shown, the first permanent magnet 3 on the upper conjoined crown 1 is located in front of the second permanent magnet 4 on the lower conjoined crown 2 and has the same poles facing each other. The mutual repulsion between the first permanent magnet 3 and the second permanent magnet 4 is preferably not less than 500 grams, so as to ensure that the jaw bone changes. The dimensions of the first permanent magnet 3 and the second permanent magnet 4 are 3×5×5 mm. The first pe...
Embodiment 2
[0050] Embodiment two is the further improvement of embodiment one, as figure 2 As shown, the lower conjoined crown 2 is integrally formed with a second protrusion 6 between the teeth; as image 3 As shown, the upper conjoined crown 1 is integrally formed with a first protrusion 8 abutting between the teeth. Adopting the above-mentioned structure can make the fixation between the upper conjoined crown 1 and the lower conjoined crown 2 and the molars more firm.
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