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Maxillary built-in sagittal distraction osteogenesis device

A traction osteogenesis, built-in technology, applied in the fields of medical science, dentistry, orthodontics, etc., can solve the problems of insufficient indirect force, increased difficulty of orthodontics, and displacement of anchorage teeth, etc., to achieve simple operation, life and Effect with little impact on aesthetics

Pending Publication Date: 2018-11-06
SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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  • Abstract
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Problems solved by technology

[0005] However, the intraoral distraction osteogenesis device is mainly tooth-supported, and the traction force is applied to the teeth and transmitted to the jaw bone. The indirect force pushing the maxilla forward is not as good as the direct force of the external distraction osteogenesis device, and the reaction force will make the anchorage Tooth displacement, increasing the difficulty of subsequent orthodontic correction

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Embodiment Construction

[0014] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0015] Such as figure 1 and figure 2 As shown, this embodiment includes a belt ring 2 , a transverse palatal rod 3 , a spiral expander 4 , an anchorage nail positioning hole 5 , an anchorage nail 6 , and a connecting rod 7 .

[0016] The two casting-connected belt rings 2 located on the maxillary first premolar and the maxillary second premolar pass through the transverse palatal bar 3 so that a total of four belt rings on the left and right sides are connected in pairs to form a whole; the right spiral arch expander 4 Across the buccal side of the maxillary vertical osteotomy line, located on the buccal side be...

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Abstract

The invention discloses a maxillary built-in sagittal distraction osteogenesis device. The maxillary built-in sagittal distraction osteogenesis device comprises at least four belt rings, two screw anchorages and corresponding screw anchorage location holes, two expansion screws, two transpalatal arches, and four connecting rods; the four belt rings are bonded on the teeth on the two sides of the maxillary horizontal osteotomy line of a patient; the two screw anchorages are arranged on the two sides respectively between each pair of the root of a maxillary canine and the root of a correspondingdentes premolares; the two screw anchorage location holes are arranged on the two sides respectively between each pair of the root of a maxillary canine and the root of a corresponding dentes premolares; the other end of each screw anchorage is connected with a corresponding belt ring; the transpalatal arches are used for connecting the belt rings on the left and the right; the expansion screws are connected with the belt rings through the connecting rods. The maxillary built-in sagittal distraction osteogenesis device is capable of solving a problem in the prior art that the counter-acting force of a conventional tooth-borne type maxillary built-in sagittal distraction osteogenesis device on anchorage teeth is large, mixed supporting mode is adopted, teeth and maxilla are taken as anchorages, distraction force is transferred onto maxilla through the belt rings and the screw anchorages fixedly arranged on teeth, the counter-acting force on teeth is reduced, and distraction osteogenesis amount is increased effectively, so that effective curative of maxillary sagittal deficiency is realized, and operation is convenient.

Description

technical field [0001] The invention relates to a device for treating maxillary sagittal underdevelopment, in particular to a maxillary built-in sagittal distraction osteogenesis device. Background technique [0002] The maxillary anterior distraction osteogenesis technology can effectively increase the length of the maxilla by stimulating the formation of new bone in the tension zone, and obtain a stable amount of maxilla advancement, so as to correct the skeletal malocclusion caused by the sagittal underdevelopment of the maxilla. [0003] This technique is widely used in the treatment of patients with sagittal underdevelopment of the maxilla secondary to cleft lip and palate. Firstly, through orthognathic surgery, the vertical osteotomy between the maxillary first premolar and the second premolar, or between the maxillary second premolar and the maxillary first molar, and the horizontal osteotomy of the front part of the maxilla; The force device can be used for sagittal...

Claims

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Application Information

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IPC IPC(8): A61C7/08A61C7/10
CPCA61C7/08A61C7/10
Inventor 朱敏王旭东聂萍朱妍菲沈国芳
Owner SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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