CN201668520U

CN201668520U - Gap maintainer

Info

Publication number: CN201668520U
Application number: CN2010202011686U
Authority: CN
Inventors: 陈延梅; 王国友; 李倜; 白建文; 赵雪娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-14
Filing date: 2010-05-14
Publication date: 2010-12-15
Anticipated expiration: 2020-05-14

Abstract

The utility model discloses a gap maintainer. The gap maintainer comprises a thin tooth cover made of resin; the gap positioned between two adjacent teeth on the thin tooth cover is provided with a sunken part; the top of the sunken part is provided with a gap top beam, two ends of which extend to the lateral surfaces of the two adjacent teeth respectively; and the end part of the gap top beam is roughly positioned in the middle of the lateral surfaces of the two adjacent teeth. After a milk tooth of a child is dropped and lost, the thin tooth cover made of resin is worn; and the thin tooth cover is performed, the sunken part on the thin tooth cover is at the gap of the milk tooth of the child and two ends of the sunken part are propped against the lateral surfaces of the two adjacent teeth, so the gap can be maintained after the milk tooth is early lost. Because the gap maintainer is formed integrally, the gap maintainer is convenient to pick and wear, can be picked for cleaning during dining or brushing teeth, and is favorable for maintaining oral hygiene; and the maintainers with different sizes can be worn according to the jawbone of the child and the growth condition of the dental arch.

Description

A kind of space maintainer

Technical field

This utility model relates to type medical instrument for dental use, specifically is a kind of space maintainer that is used for behind the premature shedding of deciduous tooth.

Background technology

Child's deciduous teeth usually be less than for the tooth phase with regard to the too early disappearance that comes off, the slit between two adjacent teeths of disappearance back is a gap.After child's exuviation disappearance,, will cause the both sides adjacent teeth to tilt to the gap place because the gap place lacks normal functional stimulus, the backlash is diminished, cause the phenomenon of permanent teeth easily, even influence the growth promoter of jawbone, the dental arch distortion takes place because of not enough impaction in gap or dislocation eruption.Therefore need to wear space maintainer after the deciduous teeth disappearance, existing space maintainer mainly contains two kinds, and a kind of is the artificial tooth keeper, and artificial tooth promptly is installed at the agomphosis place, for the child, wears artificial tooth and quite bothers, and also is unfavorable for the growth of permanent teeth; Another kind is the fixed space maintainer made from stainless steel silk, and this kind keeper is made complicated, and foreign body sensation is obvious, is difficult to keep oral hygiene when the child wears, and easily produces gingivitis; And because stainless steel silk hardness height, pliability are low, thereby be not easy to regulate at any time with the growth of dental arch.

The utility model content

The technical problems to be solved in the utility model provides a kind of space maintainer, use this space maintainer can keep the gap that causes behind the premature shedding of deciduous tooth, it is simple for production, quick, wear conveniently, be beneficial to the maintenance of oral hygiene, and foreign body sensation is little, is convenient to the growth of child's jawbone, dental arch change at any time.

For solving the problems of the technologies described above, provide the space maintainer of following structure: this keeper comprises the thin facing that is formed from a resin, and the gap place on the thin facing between two adjacent teeths is provided with a depressed part.

After adopting said structure, after child's the exuviation disappearance, by wearing the thin facing that this is formed from a resin, owing to should make in advance by thin facing, the depressed part that is provided with on it is the gap place with child's deciduous teeth, the side of adjacent two teeth can be withstood in the both ends of depressed part, thereby can keep the gap that causes behind the premature shedding of deciduous tooth.Because this utility model is formed in one, so take and wear very convenient, it can be taken cleaning when being at table or brushing teeth, help the maintenance of oral hygiene, also can wear the keepers of different sizes according to the developmental state of child's jawbone, dental arch.

As improvement of the present utility model, the top of described depressed part is that two ends extend to the lateral gap of two adjacent teeths back timber respectively, and the existence of gap back timber can strengthen the lateral support power of depressed part to adjacent two teeth, helps keeping gap.

As further improvement of the utility model, the end of described gap back timber roughly is positioned at the lateral middle part of two adjacent teeths, has the gap between the inner top surface of gap back timber and the dental bed, helps the growth of permanent teeth.

The thickness of described thin facing is 0.2-0.4mm, so foreign body sensation is very little, is well suited for the child and wears.

The thickness of described gap back timber is 0.8-1.0mm.

Description of drawings

Below in conjunction with accompanying drawing this utility model is further described:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 be among Fig. 1 A to sketch map;

Fig. 3 for B-B among Fig. 2 to the sketch map of analysing and observe.

The specific embodiment

Space maintainer as shown in Figure 1, it comprises and the matched thin facing 1 of child's tooth jaw shape that thin facing 1 is formed from a resin, its thickness is 0.2-0.4mm.In conjunction with illustrated in figures 1 and 2, gap place on the thin facing 1 between two adjacent teeth X, Y is provided with a depressed part 2, can a plurality of depressed parts 2 be set according to what of agomphosis on thin facing 1, the top of depressed part 2 is that two ends extend to the lateral gap of two adjacent teeths back timber 3 respectively.As shown in Figure 3, the thickness of gap back timber 3 is 0.8-1.0mm, and the C line is the upper surface line of dental bed among the figure, leaves gap 4 between the inner top surface of C line and gap back timber 3, and gap 4 can provide the growing space for permanent teeth.The end of gap back timber 3 roughly is positioned at the lateral middle part of two adjacent teeths.

This utility model is made like this: get dentognathic model in the child patient mouth with alginate impression material, the perfusion gypsum work mould, treat the model drying after, polishing finishing is coated with separating medium; Get the resin pressuring film plate of thickness 1-1.5mm, after heating on the press mold machine, be pressed onto on the plaster model by suction, press mold is taken off from plaster model in the cooling back, prunes to be shaped.

Claims

1. a space maintainer is characterized in that this keeper comprises and child's tooth jaw matched thin facing of shape (1), and the gap place that thin facing (1) is gone up between two adjacent teeths is provided with a depressed part (2).

2. space maintainer according to claim 1 is characterized in that: the top of described depressed part (2) is that two ends extend to the lateral gap of two adjacent teeths back timber (3) respectively.

3. space maintainer according to claim 2 is characterized in that: the end of described gap back timber (3) roughly is positioned at the lateral middle part of two adjacent teeths.

4. according to each described space maintainer among the claim 1-3, it is characterized in that: described thin facing (1) is formed from a resin, and its thickness is 0.2-0.4mm.

5. space maintainer according to claim 3 is characterized in that: the thickness of gap back timber (3) is 0.8-1.0mm.