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Multi-directional arch expanding device

A kind of arch expander and metal technology, which is applied in the field of multi-directional arch expander, can solve the problems that the maxillary posterior teeth do not move far away, and it is difficult for patients to achieve the occlusal relationship in orthodontics, so as to avoid tooth elongation and stabilize the effect

Active Publication Date: 2014-08-27
SHANGHAI SMARTEE DENTI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, most of the appliances only stay in the horizontal expansion of the dental arch, and do not have the function of moving the maxillary posterior teeth distally, so it is difficult to achieve the ideal occlusal relationship in the correction of this type of patients

Method used

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  • Multi-directional arch expanding device

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Embodiment Construction

[0011] The specific implementation will be described in detail below in conjunction with the accompanying drawings: figure 1 One embodiment of the invention is shown. In the figure, a multi-directional arch expander includes: a plastic base matching the palate cavity of the patient, a spiral dilator 3, a metal retaining crown for the first and second left / right premolars, Left / right first molar metal-retained single crown and arch wire 5; the left / right first and second premolar metal-retained joint crowns consist of a main body 22 and a metal crown 21 that matches the corresponding crown of the patient Composition, metal crown 21 The MBT bracket 25 is provided on the outside of the metal crown of the first premolar, and the metal retention single crown of the left / right first molar is composed of a main body 32 and a metal crown 31 that matches the corresponding crown of the patient. Composition, MBT buccal tube 26 is provided on the outer side of the metal crown 31, and the...

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Abstract

The invention relates to a multi-directional arch expanding device which comprises a plastic base plate coincident with a cavity of the palate of a patient, spiral opening devices, first premolar metal retention union crowns on the left side / right side, second premolar metal retention union crowns on the left side / right side, first molar metal retention single crowns on the left side / right side and arch wires. The plastic base plate is divided into premolar area base plate bodies on the left side / right side and molar area base plate bodies on the left side / right side, the premolar area base plate body on the left side is connected with the molar area base plate body on the left side through the spiral opening devices, the premolar area base plate body on the right side is connected with the molar area base plate body on the right side through the spiral opening devices, the premolar area base plate body on the left side is connected with the premolar area base plate body on the right side through the spiral opening devices, and the arch wires are placed in MBT brackets of the first premolar metal retention union crowns on the left side / right side and the second premolar metal retention union crowns on the left side / right side and MBT cheek tubes of the first molar metal retention single crowns. The multi-directional arch expanding device has the advantages that bony structures of all teeth and the anterior palate part before the premolars on the two sides provide a strong support for distal movement of premolars; the metal crowns well control the vertical directions and the horizontal directions of the back teeth, tooth extending, lowering or twisting possibly occurring in distal movement is avoided.

Description

technical field [0001] The invention relates to a dental technology, in particular to a multidirectional arch expander. Background technique [0002] The ideal occlusion of the molars is a neutral relationship, that is, the mesiobuccal cusp of the maxillary first molar occludes the buccal groove of the mandibular first molar. Angle's class II malocclusion is manifested when the buccal groove of the mandibular first molar is located in the mesiobuccal apex-distal of the maxillary first molar, also known as the molar-distal relationship. This type of patients is also accompanied by symptoms of crowding of the upper anterior teeth and narrowing of the maxillary dental arch. The incidence of Angle’s Class II malocclusion is about 30% among Chinese people, which has a great impact on the patient’s face, mental health, and masticatory function. , the clinical visit rate is quite high. For the treatment of patients with Angle's Class II malocclusion with moderate to severe crowdi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C7/10
Inventor 汪虹虹沈刚
Owner SHANGHAI SMARTEE DENTI TECH CO LTD
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