Preformed Functional Space Maintainer

Abstract

The invention relates to a prefabricated functional gap retainer, comprising a prefabricated crown, one side of the prefabricated crown is fixedly provided with an auxiliary crown, and the connection between the prefabricated crown and the auxiliary crown is provided with a connection between the prefabricated crown and the auxiliary crown. Auxiliary crowns communicate with through-hole columns. The auxiliary crown is provided with an adjustment rod, one end of the adjustment rod is fixed on the end face of the auxiliary crown and the preformed crown, and the other end of the adjustment rod is fixed on the end face of the auxiliary crown away from the preformed crown. The present invention is based on the original preformed crown, adding an accessory crown body that can restore the shape and height at the missing place, and adjusting the mesio-distal distance of the accessory crown by adjusting the rod to maintain the integrity of the dentition. The present invention can not only restore the missing part The horizontal distance of the teeth can also restore the vertical height of the missing teeth, restore the occlusal and chewing function of the missing teeth, and better promote the eruption of the inherited permanent teeth. It is especially suitable for children with premature loss of deciduous teeth and large adjacent teeth. It can well protect the space of missing teeth in children. The invention has simple structure, convenient use, and is suitable for wide popularization and use.

Description

technical field [0001] The invention relates to the field of stomatology, in particular to a preformed functional space maintainer. Background technique [0002] Space maintainer is a kind of space maintainer, which means that after the premature loss of children's teeth, in order to maintain the vacancy, a gap should be made for the child to maintain a normal physiological gap, in order to prevent the adjacent teeth from tilting to the lost part and the opposing teeth from elongating. Device, which is used to maintain the mesio-distal and vertical gaps of prematurely lost teeth in the dentition, and maintain the normal eruption of inherited permanent teeth. Prevention of permanent dentition errors due to loss of deciduous teeth [0003] Malocclusion. [0004] Premature loss of deciduous teeth, because the tooth loses the balance of the three-dimensional space, the adjacent teeth will tilt or move to the gap to narrow the gap. Resulting in impacted or misplaced eruption o...

AI Technical Summary

Problems solved by technology

Also, wire loop retainers are less comfortable

[0006] It can be seen that the currently disclosed space maintainers can only restore the horizontal distance of missing teeth, but cannot restore the vertical height of missing teeth

[0007] However, most of the missing primary molars are accompanied by large-scale defects of adjacent teeth.

Especially for children, the same side or both sides are often missing at the same time, and the degree of defect of multiple teeth is often different. Some teeth are too damaged to be repaired or maintained on the basis of it. At this time, it is difficult to use the existing gap maintenance method. With good maintenance, even the filling is not well retained, and the existing space maintainer can not restore the vertical height of the missing tooth, so it brings troubles to the patient when using it

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