CN210494278U

CN210494278U - Push molar backward orthodontic appliance

Info

Publication number: CN210494278U
Application number: CN201920884445.9U
Authority: CN
Inventors: 胡骁颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-05-12
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses a push away orthodontic appliances behind molar belongs to medical instrument technical field, pushing mechanism includes first belt ring, the second belt ring, tongue side support bar and buccal side bracing piece, buccal side at the second belt ring all is fixed with the guide cylinder, the rear end of tongue side support bar is pegged graft with the guide cylinder and is formed sliding fit, middle part and first belt ring fixed connection, front end and base support fixed connection, the rear end of buccal side bracing piece is pegged graft with the guide cylinder and is formed sliding fit, front end and first belt ring fixed connection, it pushes away the spring all to overlap on tongue side support bar and the buccal side bracing piece that is located between first belt ring and the guide cylinder and is equipped with elasticity and pushes away the spring, the elasticity that is located base support one side pushes away the spring and forms the bearing structure that length is fixed with the help of the retaining member, the elasticity that is located the base support opposite side pushes away the mechanism that the first molar of this side is formed with the. The molar is pushed backwards in a lasting, light and fractional manner, and the molar can be pushed backwards for 2.5-3mm every 6-8 weeks, so that the effect is good.

Description

Push molar backward orthodontic appliance

Technical Field

The utility model belongs to the technical field of medical instrument, involve pushing away and grinding the tooth just abnormal ware backward.

Background

In the clinical practice of orthodontic treatment, malocclusion and crowding are common, and the currently common treatment method is to use a molar retroorthodontic appliance to correct the malocclusion. By pushing the molar backward, the molar relationship is corrected, the arch gap is developed, and the continuity of the arch and the coordination and beauty of the face can be maintained. The existing pendulum-type appliance is easy to cause the loss of the front tooth support in the using process, namely, the excessive lip inclination of the front teeth occurs, and the beauty of the lips and the health of the front teeth are influenced. The existing external arch appliance combines the external arch with a neck belt and a head cap, and transfers the anchorage position to the head and the neck, so that the external arch appliance is not beautiful, can cause discomfort of the head and the neck, is difficult to be accepted by patients, has poor compliance of the patients, and is easy to negatively influence the I, III-type facial form of bone, namely the concave surface type is aggravated to influence the beauty.

Disclosure of Invention

The utility model discloses an overcome prior art's defect, designed and pushed away the orthodontic correction ware backward, can push away 2.5-3mm backward 6-8 weeks at every turn, respond well, overcome the shortcoming that the ware anchorage is lost easily is rescued to the pendulum type clinically, overcome the extraoral bow and rescued the ware and pushed away the negative-going influence of grinding the tooth backward to the I, III class face types of bone.

The utility model adopts the following specific technical proposal: push away orthodontic appliances backward, including the base that is used for fixing in palate, still include the pushing mechanism who connects between base and the first molar of each side, the key lies in: the pushing mechanism comprises a first belt ring fixed on the premolar, a second belt ring fixed on the premolar, a lingual side support rod positioned between the second belt ring and the base and a buccal side support rod positioned on the buccal side of the second belt ring, guide cylinders arranged in the front-back direction are fixed on the buccal lingual side of the second belt ring, the rear end of the lingual side support rod is spliced with the guide cylinders positioned on the lingual side of the second belt ring to form sliding fit, the middle part of the lingual side support rod is bent towards the first belt ring and fixedly connected with the first belt ring, the front end of the lingual side support rod is bent towards the base and fixedly connected with the base, the rear end of the buccal side support rod is spliced with the guide cylinders positioned on the lingual side of the second belt ring to form sliding fit, the front end of the buccal side support rod is fixedly connected with the first belt ring, elastic push springs coaxially arranged on the lingual side support rod and the buccal side support rod positioned between the first belt ring and the guide cylinders are sleeved with the lingual side support rods, the elastic push springs positioned on one side of, The elastic push spring positioned at the other side of the base is formed into a back push mechanism of the first molar tooth at the other side by virtue of the push force of the elastic push spring.

The front molar comprises a second front molar positioned in front of the first molar and a first front molar positioned in front of the second front molar, the first band ring is fixed on the first front molar, and a gap is reserved between the elastic push spring and the second front molar.

The tongue side support rod and the cheek side support rod between the elastic push spring and the first belt ring are bent backwards to form a limiting structure of the elastic push spring.

The pushing mechanism also comprises a stress application sleeve arranged between the elastic push spring and the guide cylinder, the stress application sleeve is sleeved on the tongue side support rod or the cheek side support rod, and the stress application sleeve enables the elastic push spring to contract to form a stress application mechanism of the elastic push spring.

The stress application sleeve is of a cylindrical structure with a disassembly and assembly notch formed in the side wall.

The guide cylinder comprises a rear cylinder body fixedly connected with the second belt ring and a front cylinder body in threaded connection with the rear cylinder body, and the front cylinder body moves forwards to form a force application mechanism of the elastic push spring.

The maximum length of the base support is less than or equal to 1 cm.

The retaining member be C shape pole, the one end of C shape pole and the rear end joint of guide cylinder, the other end and be located the tongue side bracing piece or the joint of buccal side bracing piece that the elasticity pushed the spring front end.

The locking piece is a ring-shaped structure surrounding the elastic push spring and the periphery of the guide cylinder.

The first belt ring is sleeved on the front molar and is fixedly adhered to the front molar by virtue of the adhesive layer, and the second belt ring is sleeved on the first molar and is fixedly adhered to the first molar by virtue of the adhesive layer.

The utility model has the advantages that: three teeth and a base support fixed on a palate part are used as anchorage to form a single-leg pedaling-shaped appliance, and a mode of pushing molar teeth backwards for a long time and with light force is adopted, so that the effect is good. Can be pushed backwards for 2.5-3mm every 6-8 weeks without any anchorage loss and without depending on the cooperation of patients. Overcomes the defect that the anchorage of the clinical swing type appliance is easy to lose. Overcomes the negative influence of the extraoral appliance pushing and grinding the teeth backwards on the bony I, III type surface types and also overcomes the defect of poor compliance.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the installation structure of the middle force application sleeve of the present invention.

Fig. 3 is a schematic structural view of the middle guide cylinder of the present invention.

In the drawings, 1 represents a base, 2 represents a first molar, 3 represents a first band ring, 4 represents a second band ring, 5 represents a lingual support bar, 6 represents a buccal support bar, 7 represents a guide cylinder, 7-1 represents a rear cylinder, 7-2 represents a front cylinder, 8 represents an elastic push spring, 9 represents a locking member, 10 represents a second front molar, 11 represents a first front molar, and 12 represents a force application sleeve.

Detailed Description

The present invention will be described in detail with reference to the following drawings and specific embodiments:

in a specific embodiment, as shown in fig. 1, 2 and 3, the molar-pushing posterior orthodontic appliance comprises a base 1 for fixing on a palate and a pushing mechanism connected between the base 1 and the first molar 2 on each side, wherein the base 1 has a maximum length of 1cm or less and a small area, so that discomfort of a wearer can be relieved. The pushing mechanism comprises a first belt ring 3 fixed on the front molar, a second belt ring 4 fixed on the first molar 2, a lingual side support bar 5 positioned between the second belt ring 4 and the base 1 and a buccal side support bar 6 positioned on the buccal side of the second belt ring 4, guide cylinders 7 arranged along the front and back directions are fixed on the buccal lingual side of the second belt ring 4, the rear end of the lingual side support bar 5 is inserted into the guide cylinder 7 positioned on the lingual side of the second belt ring 4 to form a sliding fit, the middle part of the lingual side support bar is bent towards the first belt ring 3 and fixedly connected with the first belt ring 3, the front end of the lingual side support bar 6 is bent towards the base 1 and fixedly connected with the base 1, the rear end of the buccal side support bar 6 is inserted into the guide cylinder 7 positioned on the buccal side of the second belt ring 4 to form a sliding fit, the front end of the buccal side support bar is fixedly connected with the first belt ring 3, elastic push springs 8 coaxially arranged on the lingual side support bar 5 and the buccal side support bar 6 positioned between the first belt ring 3, the elastic push spring 8 on one side of the base 1 is formed into a supporting structure with a fixed length by a locking piece 9, and the elastic push spring 8 on the other side of the base 1 is formed into a back-push mechanism of the first molar 2 on the side by the push force thereof.

First belt ring 3 suit is fixed with preceding molar bonding with the help of the adhesive linkage on preceding molar, and second belt ring 4 suit is fixed with first molar 2 bonding with the help of adhesive linkage on first molar 2, and firm in connection is reliable, can prevent that first belt ring 3 and second belt ring 4 from droing, prevents simultaneously that first belt ring 3 and second belt ring 4 from taking place to rotate and influence and rescues the effect. The front end of the lingual support bar 5 is inserted into the base 1 to avoid the oral surface from being abraded by the lingual support bar 5.

The form of retaining member has a lot of, as long as can push away spring 8 with elasticity and fix and prevent that it from taking place deformation can, the utility model discloses in give following two kinds:

first, the locking member 9 is a C-shaped bar, one end of which is engaged with the rear end of the guide cylinder 7 and the other end of which is engaged with the lingual support bar 5 or the buccal support bar 6 located at the front end of the elastic push spring 8.

Secondly, the locking member 9 is a ring-shaped structure surrounding the elastic push spring 8 and the guide cylinder 7.

The premolars comprise second premolars 10 positioned in front of the first molars 2 and first premolars 11 positioned in front of the second premolars 10, the first belt ring 3 is fixed on the first premolars 11, and a gap is reserved between the elastic push spring 8 and the second premolars 10. The elastic pushing spring 8 is positioned between the first premolar 11 and the first molar 2, so that the elastic pushing spring 8 has a large enough adjustment space, and the elastic pushing spring 8 can avoid abrasion of the second premolar 10.

The molar 10 is buried in and is hindered to be born in the jaw well more before the second in clinical, and the clearance between first preceding molar 11 and the first molar 2 varies in size, and the zero clearance even causes the second preceding molar 10 to hinder to be born because the clearance of erupting is not enough, often erupts in palatal side or buccal side dislocation of jaw, so fix first band ring 3 more firmly reliably on first preceding molar 11, utilize the utility model discloses an it pushes away the molar backward to rescue the ware, makes and has enough big clearance between first preceding molar 11 and the first molar 2, makes the second preceding molar 10 can grow out smoothly.

The lingual support bar 5 and the buccal support bar 6, which are positioned between the elastic push spring 8 and the first band 3, are bent backward to form a limit structure of the elastic push spring 8, so as to prevent the elastic push spring 8 from moving forward and prevent the elastic push spring 8 from generating forward thrust. When the locking piece 9 is a C-shaped rod, one end of the C-shaped rod is clamped with the rear end of the guide cylinder 7, and the other end of the C-shaped rod is clamped with the limiting structure of the tongue side supporting rod 5 or the cheek side supporting rod 6.

The pushing mechanism further comprises a stress application sleeve 12 arranged between the elastic push spring 8 and the guide cylinder 7, the stress application sleeve 12 is sleeved on the tongue side support rod 5 or the cheek side support rod 6, and the stress application sleeve 12 enables the elastic push spring 8 to contract to form the stress application mechanism of the elastic push spring 8. When needs increase backward thrust, need not change elasticity and push away spring 8, directly install additional thrust sleeve 12 with elasticity push away spring 8 forward propulsion can, thrust sleeve 12 sets up the tubular structure of dismouting opening on the lateral wall, tongue side bracing piece 5 and buccal side bracing piece 6 need not be dismantled, can be with thrust sleeve 12 suit tongue side bracing piece 5 and buccal side bracing piece 6 on directly through the dismouting opening on the lateral wall, also can dismantle thrust sleeve 12 from tongue side bracing piece 5 and buccal side bracing piece 6 through the dismouting opening on the lateral wall, and is convenient and fast, and time and labor are saved.

The guide cylinder 7 comprises a rear cylinder body 7-1 fixedly connected with the second belt ring 4 and a front cylinder body 7-2 in threaded connection with the rear cylinder body 7-1, and the front cylinder body 7-2 moves forwards to form a force application mechanism of an elastic push spring 8. The front barrel 7-2 is rotated to enable the front barrel 7-2 to move forwards, the length of the guide barrel 7 is increased, and therefore the elastic push spring 8 contracts, backward thrust can be increased, a wearer can operate at home, and the device is convenient, fast, time-saving and labor-saving, can achieve continuous adjustment, and is high in adjustment precision.

The utility model discloses when specifically using, the base 1 is the sheet structure who makes with thermosetting plastic material, and tongue side support pole 5 and buccal side support pole 6 all are the stainless steel wire that the diameter is 1.2mm, and used adhesive linkage is the lamellar structure who is made by the solid powder of zinc phosphate gluing, and 3 fixed connection of mode and first belt ring that laser welding is passed through to buccal side support pole 6's front end.

As shown in fig. 1, the base 1 is fixed on the palate part, the first band ring 3 is fixed on the first front molar 11 in an adhering manner, the second band ring 4 is fixed on the first molar 2 in an adhering manner, the lingual support bar 5 and the buccal support bar 6 are sleeved with the elastic push spring 8, the rear end of the lingual support bar 5 passes through the guide cylinder 7 and extends to the rear of the guide cylinder 7, the middle part of the lingual support bar 5 is bent towards the direction of the first band ring 3 so that the part of the lingual support bar 5 sleeved with the elastic push spring 8 is coaxially arranged with the guide cylinder 7, a gap is left between the elastic push spring 8 and the lingual side of the second front molar 10, and the front end of the lingual support bar 5 is bent towards the base 1 and inserted into the base 1 to be fixed with the base 1, thereby preventing the oral cavity of a wearer from being abraded.

The rear end of the buccal side support rod 6 is inserted into the guide cylinder 7 positioned on the buccal side of the second belt ring 4 and forms sliding fit, the front end of the buccal side support rod 6 is bent towards the first belt ring 3, so that the part of the buccal side support rod 6 sleeved with the elastic push spring 8 is coaxially arranged with the guide cylinder 7, and a gap is reserved between the elastic push spring 8 and the buccal side of the second premolar 10. The two elastic pushing springs 8 on the left side of the base 1 are respectively fixed with the guide cylinder 7 behind the two elastic pushing springs by the locking piece 9 with an annular structure, so that the lengths of the two elastic pushing springs 8 on the left side are kept unchanged, the elastic pushing springs 8 on the right side of the base 1 generate backward thrust for the first molar 2 on the right side, and the force is transmitted through the base 1, so that the first molar 2 on the left side, the first front molar 11 on the left side and the first front molar 11 on the right side and palate mucosa bear the force.

After the first return visit, the urging force of the elastic urging spring 8 is released, and from the second time onward, the urging sleeves 12 having a cylindrical structure are attached to both the tongue-side support bar 5 and the cheek-side support bar 6, and the elastic urging spring 8 is urged forward, so that the elastic urging spring 8 is urged, and in order to prevent the urging sleeves 12 from falling off, the urging sleeves 12 and the cheek-side support bar 6 are fixed together by an adhesive layer, and thereafter, the urging sleeves 12 are urged forward to compress the elastic urging springs 8.

The utility model discloses by three teeth and fix the base 1 in palate part as anchorage, form into "single leg is pedaled" shape and is rescued the ware, realize lasting, light force, push away the backward purpose of molar in grades, respond well, 6-8 weeks at every turn can push away 2.5-3mm backward, do not have any anchorage and lose, also need not rely on patient's cooperation. Overcomes the defect that the anchorage of the clinical swing type appliance is easy to lose. Overcomes the negative influence of the extraoral appliance pushing and grinding the teeth backwards on the bony I, III type surface types and also overcomes the defect of poor compliance.

The situation of the patient is different, some patients need to push the molar backward on the left side, and some patients need to push the molar backward on the right side, the left side and the right side of the utility model are set to be the same, for the patient needing to push the molar backward on the left side, only the locking piece 9 is used for fixing the two elastic push springs 8 on the right side to prevent the deformation of the two elastic push springs; for the patient whose right side needs to push the molar teeth backward, the locking piece 9 is only used for fixing the two elastic push springs 8 on the left side to prevent the elastic push springs from deforming, so that the application range is wider.

Claims

1. Push away orthodontic tooth ware backward, including base (1) that is used for fixing in palate, still including connecting the pushing mechanism between base (1) and the first molar (2) of every side, its characterized in that: the pushing mechanism comprises a first belt ring (3) fixed on the front molar, a second belt ring (4) fixed on the first molar (2), a lingual side support rod (5) positioned between the second belt ring (4) and the base (1) and a buccal side support rod (6) positioned on the buccal side of the second belt ring (4), guide cylinders (7) arranged along the front and back directions are fixed on the buccal and lingual sides of the second belt ring (4), the rear end of the lingual side support rod (5) is inserted into the guide cylinder (7) positioned on the lingual side of the second belt ring (4) to form sliding fit, the middle part of the lingual side support rod is bent towards the first belt ring (3) and fixedly connected with the first belt ring (3), the front end of the lingual side support rod (6) is bent towards the base (1) and fixedly connected with the base (1), the rear end of the buccal side support rod is inserted into the guide cylinder (7) positioned on the buccal side of the second belt ring (4) to form sliding fit, and the front end of the buccal side support rod is fixedly connected with the first belt, elastic pushing springs (8) coaxially arranged with the tongue side supporting rods (5) and the cheek side supporting rods (6) between the first belt rings (3) and the guide cylinders (7) are sleeved on the tongue side supporting rods (5) and the cheek side supporting rods (6), the elastic pushing springs (8) on one side of the base support (1) are formed into supporting structures with fixed lengths through locking pieces (9), and the elastic pushing springs (8) on the other side of the base support (1) are formed into a backward pushing mechanism of the first molar (2) on the side through pushing forces of the elastic pushing springs.

2. The molar posterior orthodontic appliance of claim 1, wherein: the premolar comprises a second premolar (10) located in front of the first premolar (2) and a first premolar (11) located in front of the second premolar (10), the first belt ring (3) is fixed on the first premolar (11), and a gap is reserved between the elastic pushing spring (8) and the second premolar (10).

3. The molar posterior orthodontic appliance of claim 1, wherein: the tongue side support rod (5) and the cheek side support rod (6) which are positioned between the elastic push spring (8) and the first belt ring (3) are bent backwards to form a limiting structure of the elastic push spring (8).

4. The molar posterior orthodontic appliance of claim 1, wherein: the pushing mechanism also comprises a stress application sleeve (12) arranged between the elastic push spring (8) and the guide cylinder (7), the stress application sleeve (12) is sleeved on the tongue side support rod (5) or the cheek side support rod (6), and the stress application sleeve (12) enables the elastic push spring (8) to contract to form a stress application mechanism of the elastic push spring (8).

5. The molar posterior orthodontic appliance of claim 4, wherein: the stress application sleeve (12) is of a cylindrical structure with a disassembly and assembly notch formed in the side wall.

6. The molar posterior orthodontic appliance of claim 1, wherein: the guide cylinder (7) comprises a rear cylinder body (7-1) fixedly connected with the second belt ring (4) and a front cylinder body (7-2) in threaded connection with the rear cylinder body (7-1), and the front cylinder body (7-2) moves forwards to form a force application mechanism of an elastic push spring (8).

7. The molar posterior orthodontic appliance of claim 1, wherein: the maximum length of the base (1) is less than or equal to 1 cm.

8. The molar posterior orthodontic appliance of claim 1, wherein: retaining member (9) be C shape pole, the one end of C shape pole and the rear end joint of guide cylinder (7), the other end with be located tongue side bracing piece (5) or buccal side bracing piece (6) joint of elasticity push spring (8) front end.

9. The molar posterior orthodontic appliance of claim 1, wherein: the locking piece (9) is in a ring structure surrounding the periphery of the elastic push spring (8) and the guide cylinder (7).

10. The molar posterior orthodontic appliance of claim 1, wherein: the first belt ring (3) is sleeved on the front molar and is fixedly bonded with the front molar by means of an adhesive layer, and the second belt ring (4) is sleeved on the first molar (2) and is fixedly bonded with the first molar (2) by means of the adhesive layer.