CN201001783Y

CN201001783Y - Oral double-arm stretch extension auxiliary arch

Info

Publication number: CN201001783Y
Application number: CNU200720083399XU
Authority: CN
Inventors: 武广增
Original assignee: EIGHTH HOSPITAL OF WUHAN CITY
Current assignee: EIGHTH HOSPITAL OF WUHAN CITY
Priority date: 2007-01-31
Filing date: 2007-01-31
Publication date: 2008-01-09
Anticipated expiration: 2017-01-31

Abstract

The utility model discloses an oral dual-arm elastic force-expanded slave arch having an arcuate fixing arch in cooperation with the master arch thread and the backing bracket of an oral deformity fixing rectifier. An elastic force-expanded arch is arranged on each side of the arcuate fixing arch respectively, and winds its way from the lateral incisor to the first grinding tooth, and both ends of the elastic force-expanded arch are provided with a pair of hooks that can be hooked at the master arch thread between the second pair of canine teeth and the first grinding tooth; a pair of upright fixing protrusions are arranged on each side of the arcuate fixing arch respectively, and contact part between the lateral incisor and the canine teeth; and the arcuate fixing arch and the elastic force-expanded arch are fixed at the master arch thread and/or the backing bracket via the binding thread. The utility model has the advantages of a simple structure, a small size, enough elastic force, quick operation, convenient adjustment of force and a good rectification effect, and can be widely used to rectify the narrow, inverted and locked dental arch with a relatively high value for clinical value.

Description

The auxilliary bow of both arms elastic force expansion in mouthful

Technical field

This utility model relates to the medical apparatus and instruments that is used the expansion arch width with the mouth cavity orthodontic fixed appliance, refers to that particularly both arms elastic force is expanded auxilliary the bow in a kind of mouthful.

Background technology

In the mouth cavity orthodontic clinical practice, inharmonious and show as the anti-case of closing of backteeth for intraversion or upperdental arch, need to adopt and expand the bow device patient is treated.Traditional expansion bow device has spiral expander, four eyed ring to expand bow spring, the auxilliary bow of crin expansion etc.The structure that spiral expander and four eyed ring expand the bow spring is comparatively complicated, and its installation, dismounting, dynamics adjustment are all not too convenient.Crin is expanded auxilliary bow, and then operation is comparatively convenient, and does not need the skilled worker to cooperate, and sees so application is more.Patient's intraversion has more present bicuspid district and the district of grinding one's teeth in sleep, and traditional auxilliary bow of crin expansion only forms with a thicker bending of arch edgewise, and its leading portion places under the main arch wire, is fixed on by the ligation silk on the bracket of fixed appliance; The width of its back segment both sides under original state is greater than the width of patient's dental arch, compresses thick arch wire during treatment and its time pricked to be fixed on the bracket of fixed appliance, utilizes its time to open elastic force expansion patient's dental arch.But its arch wire diameter is thicker on the one hand, and the patient often feels under the weather, and its resilience is less on the other hand, and is difficult for accurately control, and the deviation of rescuing is bigger.Simultaneously, be subjected to the influence of counteracting force, the arch wire of its back segment both sides must cause in expansion that at cheek the palate of leading portion arch wire is to moving, be the interior receipts that the expansion bow of patient's backteeth can cause labial teeth, and receipts are to rescue unwanted negative the moving of institute mostly in this, and the expansion bow weight degree of patient's backteeth is subjected to the restriction of leading portion arch wire, make the rectifying effect of thick arch wire be difficult to be effectively played.

Summary of the invention

The purpose of this utility model be exactly to provide a kind of simple in structure, volume is small and exquisite, resilience force is sufficient, the auxilliary bow of both arms elastic force expansion in swift to operate, dynamics is easy to adjust and rectifying effect the is good mouth.

For achieving the above object, the auxilliary bow of the interior both arms elastic force expansion of mouth that this utility model is designed, has an arc maintenance bow that matches and use with the main arch wire and the bracket of mouth cavity orthodontic fixed appliance, the both sides of described arc maintenance bow are provided with a pair of elastic force expansion bow that extends to the first molar place from the crooked revolution of lateral incisor, and the two ends of described elastic force expansion bow are provided with the hook on a pair of main arch wire that can be hooked between second bicuspid and the first molar; The both sides of described arc maintenance bow are provided with a pair of maintenance standing flange that can be fitted between lateral incisor and the canine tooth; Described arc maintenance bow and elastic force expansion are bent by ligation silk traction and fixation at main arch wire or/and on the bracket.

Advantage of the present utility model is: the designed auxilliary bow of both arms elastic force expansion has been used for reference the construction features of the interior bow and the outer bow of existing face-bow, arc maintenance bow and these two critical pieces of both arms elastic force expansion bow are organically combined, and its member is simple, volume light and handy, assembling is easy, determined curative effect.Arc maintenance bow and on the maintenance standing flange can be close to patient's labial teeth section, forms good location structure, guarantee that whole expansion assists bow and can not move; The elastic force expansion bow of peculiar crooked revolving structure can produce than the higher elasticity of the auxilliary bow of existing single thick expansion, and its palate that can not cause patient's labial teeth section arch wire that matches with arc maintenance bow moves to negative, thereby guarantees the effect of patient's dental arch expansion.And arc maintenance bow and both arms elastic force expansion bow all depend on the cheek side fixed appliance, do not take much spaces basically, can not stimulate patient's palatine and tongue, and the patient is easy to accept.Simultaneously, this utility model is made simple, and elastic force is easy to adjust, and the scope of application is wider, not only can be applicable to upper dental arch, and can be applicable to lower dental arch, both can one-sided expansion bend, but also bilateral expands bow.As the supporting apparatus of oral cavity fixed appliance, can be widely used in intraversion, instead close, sealed rescuing, high clinical value is arranged.

Description of drawings

Accompanying drawing is the structural representation of the auxilliary bow of both arms elastic force expansion in a kind of mouthful.

The specific embodiment

Below in conjunction with the drawings and specific embodiments this utility model is described in further detail:

As shown in the figure, the main arch wire 2 and the bracket 9 of fixed appliance is installed in patient's oral cavity, bracket 9 is bonded in positive incisor to all facings between the second bicuspid, and the two ends of main arch wire 2 are plugged in the buccal tube 10 on the first molar band.The auxilliary bow of both arms elastic force expansion in of the present utility model mouthful has the arc maintenance bow 5 that an installation is fitted in patient's labial teeth section.The both sides of arc maintenance bow 5 are provided with a pair of elastic force expansion bow 7 that extends to the first molar place from the crooked revolution of lateral incisor, elastic force expansion bow 7 preferably extends to the first molar place after the lateral incisor bending is turned round 180 °, such being configured with is beneficial to and strengthens its resilience force.Elastic force expansion bow 7 locates to be provided with the flex point 8 that curves inwardly and shrink between canine tooth and first bicuspid, the bracket 9 of being convenient to its and first and second bicuspid, first molar place is fitted tight.The two ends of elastic force expansion bow 7 are provided with a pair of hook 1, and elastic force expansion bow 7 can be hooked on the main arch wire 2 between second bicuspid and the first molar after the side pressure of patient's tongue is contracted, and it operates convenient, and it is more comfortable that the patient feels.The both sides of arc maintenance bow 5 are provided with a pair of maintenance standing flange 4 that is fitted between lateral incisor and the canine tooth, can prevent the auxilliary bow of whole expansion move left and right.For further making the auxilliary bow of whole expansion positioning stablity reliable, the both sides of arc maintenance bow 5 can also be provided with another to being fitted in the maintenance standing flange 3 between canine tooth and the first bicuspid.Arc maintenance bow 5 and elastic force expansion bow 7 can be by ligation silk 6 traction and fixation at main arch wire 2 or/and on the bracket 9.

When this utility model uses, earlier arc maintenance bow 5 is close on the labial teeth section that is positioned at the patient, be fixed on corresponding bracket 9 or the main arch wire 2 with ligation silk 6, then elastic force expansion bow 7 is contracted to the tongue side pressure, the hook 1 of its end is hung on the main arch wire 2 of relevant position, and tighten with ligation silk 6, the resilience force of elastic force expansion bow 7 can be with patient's dental arch buccally side expansion, and the dynamics of its expansion can be adjusted easily according to patient's further consultation feedack.Through clinical many cases treatment, its effect of rescuing is very remarkable, has solved the insurmountable problem of the auxilliary bow of traditional crin expansion.

Claims

1. bow is assisted in the interior both arms elastic force expansion of mouth, it is characterized in that: it has an arc maintenance bow (5) that matches and use with the main arch wire (2) and the bracket (9) of mouth cavity orthodontic fixed appliance, the both sides of described arc maintenance bow (5) are provided with a pair of elastic force expansion bow (7) that extends to the first molar place from the crooked revolution of lateral incisor, and the two ends of described elastic force expansion bow (7) are provided with the hook (1) on a pair of main arch wire (2) that can be hooked between second bicuspid and the first molar; The both sides of described arc maintenance bow (5) are provided with a pair of maintenance standing flange (4) that can be fitted between lateral incisor and the canine tooth; Described arc maintenance bow (5) and elastic force expansion bend (7) by ligation silk (6) traction and fixation at main arch wire (2) or/and on the bracket (9).

2. both arms elastic force is expanded and assisted bow in according to claim 1 mouthful, it is characterized in that: said elastic force expansion bow (7) extends to the first molar place after the lateral incisor bending is turned round 180 °.

3. the auxilliary bow of both arms elastic force expansion in according to claim 1 and 2 mouthful, it is characterized in that: said elastic force expansion bow (7) locates to be provided with the flex point (8) that curves inwardly and shrink between canine tooth and first bicuspid.

4. the auxilliary bow of both arms elastic force expansion in according to claim 1 and 2 mouthful, it is characterized in that: the both sides of said arc maintenance bow (5) also are provided with another to being fitted in the maintenance standing flange (3) between canine tooth and the first bicuspid.

5. the auxilliary bow of both arms elastic force expansion in according to claim 3 mouthful, it is characterized in that: the both sides of said arc maintenance bow (5) also are provided with another to being fitted in the maintenance standing flange (3) between canine tooth and the first bicuspid.