CN212438906U

CN212438906U - Upper jaw molar distal movement device with palatal side micro-screw matched with removable palatal rod

Info

Publication number: CN212438906U
Application number: CN202020289728.1U
Authority: CN
Inventors: 何武成; 马爽; 鲁光炜; 李迎兰; 吴泽琳; 焉钰
Original assignee: First People's Hospital Of Xining
Current assignee: First People's Hospital Of Xining
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2021-02-02
Anticipated expiration: 2030-03-11

Abstract

The utility model relates to the technical field of orthodontic treatment, in particular to a maxilla molar far-moving device with a jaw side micro-screw matched removable jaw rod. The device consists of a removable palatal bar, palatal side micro screws, an elastic device, a belt ring with a palatal tube and an upper jaw appliance. Firstly, the absolute anchorage concept of micro-implant anchorage is utilized, so that the confusion of tooth extraction and non-tooth extraction correction selection of a clinical orthodontic physician is effectively solved. And secondly, the palatine molar tooth root spacing is obviously larger than the buccal molar tooth root spacing, so that the implantation safety is better and the tooth root mobility is wider. The larger tooth grinding root spacing on the palate side and the flexible angle selection when the palatal side micro screw is implanted can greatly reduce the possibility of secondary implantation of the micro screw, facilitate the operation and relieve the pain of a patient. Finally, the detachable jaw lever has the advantages of simple manufacture, convenient detachment and wearing, and flexible width and height adjustment according to clinical requirements, obtains good clinical correction effect in early application, and is worth popularizing and applying in later period.

Description

Upper jaw molar distal movement device with palatal side micro-screw matched with removable palatal rod

Technical Field

The utility model relates to the technical field of orthodontic treatment, in particular to a maxilla molar far-moving device with a jaw side micro-screw matched removable jaw rod.

Background

In recent years, micro-implant anchorage is one of hot contents of researches in the orthodontic field, the micro-implant anchorage is mainly applied to the design of strong anchorage after tooth extraction in the early stage, more and more orthodontists apply the micro-implant anchorage to a technology for pushing the maxillary molar to move far along with the popularization of clinical application of the micro-implant anchorage, the maxillary molar moving far not only can provide gaps for patients with light, moderate and protrusive teeth, but also can adjust molar relation, and the non-extraction corrects two clinical malposed deformities of the light, moderate and crowded upper jaw, thereby solving the confusion of selection of the orthodontist on tooth extraction and non-extraction and being more in line with the modern safe orthodontic concept. The clinical micro-implant anchorage is mainly divided into a micro-titanium plate and a micro-screw, wherein the micro-titanium plate has a large volume, surgical matching is often required for implantation, orthodontic doctors are difficult to independently complete, and the clinical application is limited. The latter has small volume and simple implantation operation and is widely applied in clinic. The technology of moving maxillary molars far by using a micro screw is roughly divided into two technologies of moving maxillary molars far on the buccal side and the palatal side according to different implantation parts. On the buccal side, the zygomatic alveolar ridge and the molar root are common implantation sites; on the palatal side, a common implantation site is the superior palatal midline and between both sides thereof and the palatal lateral molar root. Buccal miniscrew is mostly combined with the titanium forceps push spring on the main arch wire, and the counteracting force of the titanium forceps push spring is counteracted through the ligation between the bracket or the traction hook and the miniscrew, thus the indirect force application is realized. The titanium push spring of the forceps needs to be replaced every time of force application, the clinical operation is inconvenient, and the time beside the chair is prolonged. The precondition of the implantation of the zygomatic alveolar ridge micro screw is that the bone quantity of the zygomatic alveolar ridge needs to be abundant, the micro screw can only be implanted in the inferior zygomatic alveolar ridge, the micro screw can be positioned between two roots to influence the movement of the roots, the implantation of the part is influenced by the higher and the later position, the clinical implantation is relatively difficult, and the complication that the micro screw penetrates into the maxillary sinus and is embedded into the mucous membrane easily occurs. The micro-screws at the interdental parts of other buccal posterior teeth are easy to have the side effects of maxillary anticlockwise rotation and anterior labial inclination before the impedance center of the maxillary dental arch due to the stress application line, and the micro-screws are required to be implanted for the second time when the micro-screws block the tooth root movement. Although the movement of the tooth root is not influenced by the miniscrew at the midline of the palate and the positions at the two sides of the palatal side, the stress application line is far above the impedance center of the upper jaw, so that the pressing component force of the molar is obvious, the distancing component force is insufficient, and the distancing efficiency of the molar is reduced. The mode of the palatal side grinding intertooth micro screw far moving upper jaw grinding tooth is that a chain leather ring or a tension spring is tensioned between the micro screw and a traction hook welded on jaw rods of two side grinding teeth, and the force is directly applied, but the welding jaw rods need to be manufactured separately, the technical requirement is high, the probability of welding off exists, the grinding teeth on two sides need to be in place simultaneously, and the clinical manufacturing and the dismounting and the wearing are relatively complex.

SUMMERY OF THE UTILITY MODEL

Based on the above problems, the present invention provides a maxillary molar distal-moving device with palatal side micro-screws matching with removable palatal bar.

A palate side micro screw cooperates the upper jaw molar far moving device of the removable palate rod, the device is made up of removable palate rod 1, palate side micro screw 2, elastic device 3, band 4 with palate tube and upper jaw corrector 5, the said removable palate rod 1 is the semicircular formed by bending the stainless steel wire, the front end of the semicircle is close to the two sides of the upper jaw palate side and two finger-like bulges made by bending inward horizontally are the traction hook 6, the traction hook 6 is connected with palate side micro screw 2 of the left and right sides through the elastic device 3; the end head clamping hook I11 and the end head clamping hook II 12 of the removable palatal bar 1 are respectively connected with the two sides of the inner part of the belt ring 4 with the palatal tube through clamping buckles; the outer side of the ring 4 with the palatine tube is connected with the upper jaw appliance 5 through an arch wire.

Further, the diameter of the stainless steel wire for manufacturing the removable palatal bar 1 is 0.8 mm.

Furthermore, the detachable palatal bar 1 can be detached at will, and the width of the detachable palatal bar is consistent with the width of a dental arch, and the detachable palatal bar can be expanded or reduced as required.

Furthermore, the heights of the first clamping hook 11 and the second clamping hook 12 are adjustable and are specifically controlled according to the vertical direction in the process of molar removals.

Further, the palatal miniscrew 2 has a diameter of 1.6mm and a length of 8mm, and the number of the palatal miniscrew is 1 and 2.

Furthermore, the elastic device 3 can be a chain leather ring or a tension spring, and the left and the right of the elastic device are respectively 1 set and 2 sets.

Furthermore, the material for manufacturing the palatine canal strap ring 4 is a stainless steel sheet.

Further, the maxillary appliance 5 is made into a labial appliance.

The utility model has the advantages that: firstly, by utilizing the absolute anchorage concept of micro-implant anchorage, the two common malocclusion deformities of light, medium crowding and protrusion of the upper jaw are corrected without tooth extraction through effective far and middle movement of the upper jaw molar, and the confusion of selection of tooth extraction and tooth extraction correction of a clinical orthodontist is relieved. Secondly, the choice of palatal miniscrew implantation has better implant safety and a wider range of root mobility due to the palatal molar root spacing being significantly greater than the buccal molar root spacing. The larger tooth root grinding distance on the palate side and the flexible angle selection during implantation can greatly reduce the possibility of secondary implantation of the micro screw, facilitate clinical operation and relieve the pain of patients. Finally, the detachable jaw lever replaces a flux jaw lever, has the advantages of simple manufacture, convenient disassembly and wearing, and flexible width and height adjustment according to clinical requirements, obtains good clinical correction effect in early application, and is worth popularizing and applying in the later period.

Drawings

FIG. 1 is a schematic top view of the apparatus of the present invention;

FIG. 2 is a schematic view of a detachable palatal bar according to the present invention;

FIG. 3 is a schematic side view of the removable palatal bar of the present invention;

fig. 4 is a diagram of the structure of the palatine canal band of the device of the present invention.

In the figure: 1. a detachable palatal bar; 11. a first clamping hook; 12. a second clamping hook; 2. palatal miniscrew; 3. an elastic device; 4. a ring with a palatine canal; 5. a maxillary orthosis; 6. a towing hook.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, and it is to be understood that the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in the attached figures 1 and 2, the upper jaw molar far-moving device with the palatal side micro screw matched with the removable palatal bar consists of a removable palatal bar 1, a palatal side micro screw 2, an elastic device 3, a belt ring 4 with a palatal tube and an upper jaw corrector 5, wherein the removable palatal bar 1 is a semicircular shape formed by bending a stainless steel wire with the diameter of 0.8mm, two finger-shaped bulges horizontally bent inwards at the front end of the semicircle close to the two sides of the upper palatal side are traction hooks 6, and the traction hooks 6 are connected with the palatal side micro screw 2 with the diameter of 1.6mm and the length of 8mm through a chain-shaped leather ring; the end head clamping hook I11 and the end head clamping hook II 12 of the removable palatal bar 1 are respectively connected with the two inner sides of the palatal tube belt 4 made of stainless steel sheets through clamping buckles; the outer side of the ring 4 with the palatine tube is connected with an arch wire of the upper jaw appliance 5.

When in use, firstly, in the range of about 8mm from the gingival papilla between the first molar and the anterior molar on the maxilla side, after the disinfection in the conventional operation area and the anesthesia of the local mucous membrane of the Bilila, the auxiliary attack mode is adopted to ensure that the auxiliary attack mode is about 20 mm from the long axis of the tooth body^o-30^o1 left and right sterilized palate side micro-screws 2 are implanted at an angle; the upper jaw appliance 5 is installed, and the first molars on two sides are bonded with a ring belt with a spot welding palatine canal.

Then, a stainless steel wire with the diameter of 0.8mm is bent to form a semicircle, and two finger-shaped bulges which are horizontally bent inwards at the front end of the semicircle close to the two sides of the maxilla side are used as a traction hook 6; when the jaw pipe is installed, the front of the semicircle is approximately flush with the incisor nipple, (the lower incisor is adjusted backwards according to the occlusion condition of the front teeth and is not occluded in the removable jaw rod 1) the incisor position on the upper side of the steel wire is marked, the incisor position is bent towards the closing direction in the vertical direction, the steel wire is bent towards the far-middle direction and inserted into the jaw pipe part after about 2mm (the height can be adjusted according to clinical requirements), the rear part exceeds the length of the jaw pipe by about 1mm, the tail end of the front steel wire is cut off at about 1mm in front of the jaw pipe or bent towards the closing direction, the tail end is cut off after about 1mm, the polishing is circular, and the bending of the removable jaw rod 1 is finished; the jaw palatine tube ring 4 is inserted into the mouth of a patient to be adjusted, the front part of the removable palatine bar 1 is about 2mm away from a mucous membrane, the rear part of the removable palatine bar 1 does not press the palatine side mucous membrane, and the heights of the first clamping hook 11 and the second clamping hook 12 are adjustable and are specifically controlled according to the vertical direction in the process of molar removability; the width of the removable palatal bar 1 is consistent with the width of the dental arch (expansion and contraction adjustments can also be made according to clinical correction needs).

Finally, the chain leather ring is tightened between the palate side micro screw 2 and the traction hook 6, the force of two sides is about 50g, the removable palate rod 1 is fixed and the initial force is slightly applied, the force value of two sides is increased to 200g after 1 month, and the chain leather ring is replaced every month for stress application and re-diagnosis.

Example 2

As shown in the attached figures 1 and 2, the upper jaw molar far-moving device with the palatal side micro screw matched with the removable palatal bar consists of the removable palatal bar 1, the palatal side micro screw 2, an elastic device 3, a belt ring 4 with a palatal pipe and an upper jaw corrector 5, wherein the removable palatal bar 1 is a semicircular shape formed by bending a stainless steel wire with the diameter of 0.8mm, two finger-shaped bulges horizontally bent inwards at the front end of the semicircle close to the two sides of the upper palatal side are traction hooks 6, and the traction hooks 6 are connected with the palatal side micro screw 2 with the diameter of 1.6mm and the length of 8mm through a tension spring; the end head clamping hook I11 and the end head clamping hook II 12 of the removable palatal bar 1 are respectively connected with the two inner sides of the palatal tube belt 4 made of stainless steel sheets through clamping buckles; the outer side of the ring 4 with the palatine tube is connected with the upper jaw appliance 5 through an arch wire.

Then, a stainless steel wire with the diameter of 0.8mm is bent to form a semicircle, and two finger-shaped bulges which are horizontally bent inwards at the front end of the semicircle close to the two sides of the maxilla side are used as a traction hook 6; when the jaw pipe is installed, the front of the semicircle is approximately flush with the incisor nipple, (the lower incisor is adjusted backwards according to the occlusion condition of the front teeth and is not occluded in the removable jaw rod 1) the incisor position on the upper side of the steel wire is marked, the incisor position is bent towards the closing direction in the vertical direction, the steel wire is bent towards the far-middle direction and inserted into the jaw pipe part after about 2mm (the width can be adjusted according to clinical requirements), the rear part exceeds the length of the jaw pipe by about 1mm, the tail end of the front steel wire is cut off at about 1mm in front of the jaw pipe or bent towards the closing direction, the tail end is cut off after about 1mm, the polishing is circular, and the bending of the removable jaw rod 1 is finished; the jaw palatine tube ring 4 is inserted into the mouth of a patient to be adjusted, the front part of the removable palatine bar 1 is about 2mm away from a mucous membrane, the back part of the removable palatine bar 1 does not press the palatine side mucous membrane, and the heights of the first clamping hook 11 and the second clamping hook 12 are adjustable and are specifically controlled according to the vertical direction in the process of molar removals; the width of the removable palatal bar 1 is consistent with the width of the dental arch (expansion and contraction adjustments can also be made according to clinical correction needs).

Finally, the tension spring is tightened between the palate side micro screw 2 and the traction hook 6, the force of two sides is about 50g, the removable palate rod 1 is fixed and the initial force is slightly applied, the force value of two sides is increased to 200g after 1 month, and the tension spring is replaced every month for stress application and double diagnosis.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A palate side micro screw is matched with a maxilla molar far moving device of a removable palate rod, which is characterized in that the device consists of a removable palate rod (1), palate side micro screws (2), an elastic device (3) with a palate tube ring (4) and an upper jaw corrector (5), wherein the removable palate rod (1) is a semicircular shape formed by bending a stainless steel wire, two finger-shaped bulges horizontally and inwards bent at the front end of the semicircle close to the two sides of the maxilla side are traction hooks (6), and the traction hooks (6) are connected with the palate side micro screws (2) on the left side and the right side through the elastic device (3); the end head clamping hook I (11) and the end head clamping hook II (12) of the removable palatal bar (1) are respectively connected with the two sides of the inner part of the palatal tube belt ring (4) through clamping buckles; the outer side of the ring (4) with the palatine tube is connected with the upper jaw appliance (5) through an arch wire.

2. The maxillary molar distancing device of claim 1 wherein said stainless steel wire of said removable palatal bar (1) is made 0.8mm in diameter.

3. The maxillary molar distalizing device of claim 1, wherein the palatal miniscrew is fitted with a removable palatal bar, wherein said removable palatal bar (1) can be removed at will, and its width is the same as the width of dental arch, and can be expanded or reduced as required.

4. The maxillary molar distancing device of claim 1, wherein the height of the first hook (11) and the second hook (12) is adjustable, and is controlled according to the vertical direction during molar distancing.

5. The maxillary molar distancing device of claim 1, wherein the palatal miniscrew screw (2) has a diameter of 1.6mm and a length of 8mm, and the number of screws is 1 and 2.

6. The maxillary molar distalizing device of claim 1 wherein the elastic means (3) is a chain leather ring or tension spring with 1 set on each of the left and right and 2 sets.

7. The maxillary molar distal removal device of claim 1 wherein said palatal tube carrying band (4) is made of stainless steel sheet.

8. A maxillary molar distalizing device for palatal miniscrew fitted with removable palatal bar according to claim 1 wherein the fabricated maxillary appliance (5) is a labial appliance.