Deciduous tooth spaced shedding space recovering and retaining device

Abstract

Disclosed is a deciduous tooth spaced shedding space recovering and retaining device. The deciduous tooth spaced shedding space recovering and retaining device is characterized by mainly comprising a retention ring, a slideway and a main arch wire, the slideway is fixedly connected with the outer side face of the retention ring, a penetration hole matched with the outer contour of the main arch wire is formed in the slideway, a retention hook is arranged on the sidewall of the front end of the slideway, and the main arch wire is formed by a moving rod, a first U-shaped bend, a longitudinal connection rod, a second U-shaped cheek bend, a front stop rod, a second U-shaped tongue bend and a back stop rod sequentially, wherein bend bottoms of the first U-shaped bend, the second U-shaped cheek bend and the second U-shaped tongue bend are vertical downwards and are perpendicular to the longitudinal connection rod, the front stop rod and the back stop rod, and the moving rod at the back end of the first U-shaped bend penetrates through the penetration hole of the slideway and can slide back and forth in the penetration hole. A transverse rod is detachably connected to the longitudinal connection rod, and the transverse rod, the front stop rod and the back stop rod are parallel to one another and are in transverse arrangement. The deciduous tooth spaced shedding space recovering and retaining device is reasonable in design, simple in structure and convenient to use and has high popularization value in edentulous space retention and recovery.

Description

technical field [0001] The invention relates to the field of oral medical instruments, in particular to a space restoration and maintenance device for missing deciduous teeth. Background technique [0002] Deciduous tooth caries is a common and frequently-occurring disease in children's teeth. Some scholars have investigated and analyzed that the rate of deciduous teeth caries in preschool children is as high as 75.3%. Most children have multiple carious teeth in their mouths at the same time. Those with severe caries may develop periapical abscess, alveolar abscess, etc., which must be extracted in the end. This is the main cause of premature loss of deciduous teeth. Secondly, deciduous tooth trauma is also a common cause of premature loss of deciduous teeth. . Deciduous teeth fall out prematurely due to inflammation, dental caries, trauma and other reasons. If the gaps are not maintained in time, the gaps between missing teeth will be lost rapidly. Misplaced eruption or ...

AI Technical Summary

Problems solved by technology

The space maintainers commonly used in clinical practice cannot meet the complex situation of deciduous tooth loss

On the whole, the currently commonly used methods have the following clinical defects: (1) It is mainly used to maintain the gap after the premature loss of deciduous molars, or to expand the gap in a small amount. When the gap is reduced to more than 1mm, the space maintainer is commonly used. The gap cannot be expanded, and the adjacent teeth that have moved forward cannot return to the original position, which further leads to the occurrence of malocclusion of the matching teeth

(2) Even if the force can be adjusted slightly, the orthodontic force cannot be controlled, and the space maintenance is used in the mixed dentition stage of children, and the force must be light, usually about 60 grams

(3) After the deciduous molars are missing, the adjacent teeth tend to move mesially and obliquely. Even if the ordinary space maintainer can be slightly adjusted with force, the molars will go straight back, unable to complete the distal inclination and then upright

(4) The ordinary fine-tuning space maintainer has the power to directly expand the gap after it is brought into the mouth, and it cannot be taken out and adjusted after it is worn in and bonded. Children, as a special group, have immature minds and are likely to cause discomfort in children. Let the child get used to the retainer first, and then apply force

(5) For the cases of missing space between multiple deciduous teeth, it is impossible to divide into blocks, and finely adjust the force according to the specific situation of space loss

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