CN213851160U - 90-degree torsion appliance for upper anterior teeth - Google Patents

Abstract

The utility model discloses an upper anterior teeth 90-degree torsion appliance, which belongs to the technical field of tooth correction. Comprises a lip side traction hook and a torsion tooth near and far middle tongue side buckle, an elastic rubber ring is arranged between the lip side traction hook and the torsion tooth near and far middle tongue side buckle, a far middle and near surface guide plate is arranged in a gap between the torsion tooth far and middle buckle, and retention devices arranged on double-side upper jaw molars are arrow snap rings. The labial traction hook and the arrow snap ring are embedded in the maxilla-palatal resin base. When in preparation, an upper and lower jaw working model is required to be prepared; then, trimming the working model; then bending a labial traction hook and a bilateral posterior tooth arrow snap ring; and finally, manufacturing the resin base of the appliance by adopting a novel injection molding process, wherein the arrowhead snap ring and the tongue side of the traction hook are embedded in the resin base, and the base extends to the far middle of the torsion tooth to form an integrated structure with the far middle adjacent surface guide plate. The utility model discloses a severe torsion problem that takes place when correcting ware ability efficient solution children go up the anterior teeth and sprout thoroughly avoids twising reverse the tooth and remove far and middle, loses the edentulous clearance to it is comfortable to make children's patient wear.

Description

90-degree torsion appliance for upper anterior teeth

Technical Field

The utility model belongs to the technical field of the tooth is rescued, concretely relates to ware is rescued in 90 degrees twists reverse of going up anterior teeth.

Background

Upper anterior tooth torsion is a common malocclusion in children, especially in the period of replacement of teeth. In clinic, when the upper anterior teeth of children are in severe torsion, for example, the upper anterior teeth are twisted by 90 degrees, the lateral incisors are not completely in the eruption, and a larger gap exists in the far middle of the twisted teeth. Besides affecting the beauty of children, the malocclusion deformity may cause occlusion trauma due to poor occlusion contact between the twisted teeth and the mandibular teeth, affecting the normal chewing function and further affecting the normal growth and development of the jaw bone. Therefore, for children with such malocclusion, early correction of the twisted teeth is required. Currently, there is no clinically available appliance for this type of malocclusion.

In order to arrange the twisted teeth orderly as early as possible, incorporate the dentition system, avoid losing the far and middle missing tooth gap of the teeth, and realize the early recovery of the chewing function and the correction effect of beautiful occlusal surface, a corrector suitable for severe twisting when the upper anterior teeth erupt is needed.

Disclosure of Invention

In order to solve the above problems, the present invention provides a 90 degree torsion appliance for upper anterior teeth. The utility model discloses combined human biomechanics, action science and material mechanics, the serious torsion problem that takes place when can the efficient solve the anterior tooth erupt, will twist reverse the tooth as early as possible and arrange neatly, bring the dentition system into, avoid losing the long-term edentulous clearance of this tooth simultaneously to realize that the function is chewed in early recovery and the pleasing to the eye correction effect of occlusal surface. Furthermore, the utility model discloses a rescue ware can avoid the tooth damage to make the patient easily take and wear.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a90-degree torsion appliance for upper anterior teeth comprises a lingual button, a first labial traction hook, a second labial traction hook, an elastic rubber ring, a retention device, a far and middle adjacent surface guide plate and a maxillo-palatal side resin base;

the far and middle adjacent surface guide plate is arranged in a far and middle gap of the twisted teeth and is connected with the maxillofacial side resin base;

the lingual buttons are fixed on two side surfaces of the torsional teeth and respectively correspond to the mesial gap and the distal gap; the first labial traction hook is arranged in the far middle gap of the incisor adjacent to the twisted tooth, and the first labial traction hook is connected with the lingual button corresponding to the near middle gap through an elastic rubber ring; the second lip side traction hook is arranged in a far middle gap of the far middle adjacent guide plate, and the second lip side traction hook is connected with the tongue side buckle corresponding to the far middle gap through an elastic rubber ring; the tail ends of the first labial traction hook and the second labial traction hook are embedded in the maxillo-palatal resin base;

the retention device is sleeved on the maxillary molars on the two sides, and the tail end of the retention device is embedded in the resin base on the maxillary palate side.

Preferably, the first lip side pulling hook, the second lip side pulling hook and the tongue side buckle are positioned at the same height.

As the optimization of the utility model, the far and middle adjacent surface guide plate is in the shape of tooth cross section and is matched with the far and middle gap of the twisted tooth; the clearance between the far and middle adjacent surface guide plate and the twisted tooth is kept between 0.8 and 1.2 mm.

Preferably, the distal proximal surface guide and the maxilla palatal side resin base are of an integral structure.

The preparation method of the upper anterior tooth 90-degree torsion appliance comprises the following steps:

step 1: preparing an upper and lower jaw working model according to the complete denture requirement;

step 2: trimming the working model: checking the occlusion relation of the upper and lower jaw working models, and then trimming the bottom surfaces of the upper and lower jaw working models to be parallel to the jaw plane; superposing the upper and lower jaw working models according to the occlusion relation, and trimming the rear walls of the upper and lower jaw working model seats to enable the upper and lower jaw working models to be positioned on the same plane;

and step 3: bending a pair of labial traction hooks and a pair of maxillary molar arrow snap rings, and respectively fixing the labial traction hooks in a far middle gap of a middle incisor adjacent to a torsional tooth and one side of a far middle gap of the torsional tooth in a working model in a mode of heating and fixing by using a medical wax sheet; fixing an arrow head snap ring of the upper jaw molar on two sides;

and 4, step 4: manufacturing a far and middle adjacent surface guide plate model adapting to the tooth surface in the far and middle gap of the twisted tooth by using a medical wax sheet, wherein the gap between the far and middle adjacent surface guide plate model and the twisted tooth is 0.8-1.2 mm;

and 5: the injection molding technology is utilized to manufacture the maxillopalatal side resin base and the far and near surface guide plate, and the method comprises the following steps:

step 5.1: placing the light-cured resin molding sheet on the working model which is manufactured in the step 4 and is provided with the labial traction hook, the maxillary molar arrow snap ring and the far and middle adjacent surface guide plate model, performing light curing for 8-12min, taking out, and polishing the phenanthrene edge to manufacture the constant substrate; then mounting the constant substrate on the working model;

step 5.2: putting the work model finally obtained in the step 5.1 into an agar type box, injecting agar liquid into the agar type box, standing, opening the agar type box after the agar is completely solidified, and taking out the work model to form an agar print film;

step 5.3: inserting 3 stainless steel pipes into three injection ports of the mold box to form an injection molding port and two exhaust holes; then taking the constant substrate and the far and middle adjacent surface guide plate model off the working model, and coating a separating agent on the surface of the working model; then the working model is reset into the agar impression;

step 5.4: injecting the resin liquid into the injection molding port until the resin liquid overflows from the two exhaust holes; after the perfusion is finished, placing the agar impression into the condition of 55-60 ℃ and 2.5-3.0bar pressure for polymerization for 30-35min, taking out, cooling to room temperature, preparing the maxilla palatal side resin base plate and the far and middle adjacent surface guide plate into an integrated structure, and embedding the tail ends of a pair of labial side traction hooks and a pair of maxilla molar arrow snap rings into the maxilla palatal side resin base plate (6);

step 6: and (5) polishing the maxillary palatal side resin base plate prepared in the step (5) and the phenanthrene edge of the far adjacent surface guide plate to be smooth, and finishing the preparation of the appliance.

Compared with the prior art, the utility model has the advantages of:

(1) the utility model provides a 90-degree torsion corrector for upper anterior teeth, wherein a far and middle adjacent guide plate which is consistent with the tooth form is designed in the corrector, a certain gap is kept between the far and middle adjacent guide plate and a torsion tooth, and the torsion tooth is gradually corrected in the correction process, so that the correction process of the torsion tooth can not be blocked in a mode of grinding off a small amount of times; meanwhile, in the process of returning the twisted teeth, the missing tooth gap in the far middle of the twisted teeth is kept, and the far middle movement of the twisted teeth is avoided, so that the adjacent maxillary lateral incisors have enough space to sprout.

(2) The utility model discloses a correction device upper jaw labial side draw hook and twist reverse tooth nearly far away in the tongue side and detain and be in same height, when two pairs draw hook and tongue side to detain and pass through the elastic rubber circle and connect, can form a pair of force couple, make and correct the resistance center that power passes through the tooth, avoided the extension of twisting the tooth or suppress, and make under the effect of a pair of force couple effectively twist reverse the tooth and return to the original position, bring in normal dentition, relieve the interlock interference of upper and lower jaw anterior teeth, with the pleasing to the eye of recovering patient's dentognathic face; in addition, the arrow clasps of the double-sided maxillary posterior teeth can realize good retention, so that the appliance is balanced and stable in the oral cavity.

(3) The appliance of the utility model is of an integrated structure, on one hand, the far and middle adjacent surface guide plate is connected with the resin base support of the upper jaw palate side in a curing way, thus ensuring the balance and stability of the far and middle adjacent surface guide plate; on the other hand, the arrow clasp of the upper jaw molar and the tail end of the lip side traction hook are embedded in the resin base support of the upper jaw palate side, so that the oral cavity of the child is not damaged, and the child patient can easily take off and wear the hook.

Drawings

FIG. 1 is a schematic view of the orthopedic appliance of the present invention;

FIG. 2 is a schematic side view of a maxillary dental tooth;

FIG. 3 is a schematic sectional view taken along line A-A of FIG. 1;

FIG. 4 is a schematic bottom view of the structure of FIG. 1;

in the figure, 101 a first labial traction hook, 102 a second labial traction hook, 2 a lingual button, 3 an elastic rubber band, 4 a distal and proximal surface guide, 5 a retention device, 6 a maxillo-palatal resin base.

Detailed Description

To describe the present invention more specifically, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and the detailed description.

The structure of the 90-degree torsion appliance for the upper anterior teeth of the utility model is shown in figures 1-4, and comprises a lingual button 2, a first labial traction hook 101, a second labial traction hook 102, an elastic rubber ring 3, a retention device 5, a far and middle adjacent surface guide plate 4 and a maxillofacial resin base 6;

the maxillary palate side resin base 6 is arranged at the oral maxillary palate, the far and middle adjacent surface guide plate 4 is arranged in the far and middle gap of the twisted teeth, and the far and middle adjacent surface guide plate 4 is connected with the maxillary palate side resin base 6;

as shown in fig. 2, the lingual button 2 is fixed to both side surfaces of the twisted tooth, corresponding to the mesial gap and the distal gap, respectively.

The first labial traction hook 101 is arranged in the far middle gap of the incisor adjacent to the twisted tooth, and the first labial traction hook 101 is connected with the lingual button corresponding to the near middle gap through the elastic rubber ring 3; the second lip side traction hook 102 is arranged in a far middle gap of the far adjacent surface guide plate 4, and the second lip side traction hook 102 is connected with a tongue side buckle corresponding to the far middle gap through an elastic rubber ring 3; the tail ends of the first labial traction hook 101 and the second labial traction hook 102 are embedded in the maxillofacial resin base 6.

The retention device 5 is sleeved on the maxillary molars on the two sides, and the tail end of the retention device 5 is embedded in the resin base 6 on the maxillary palate side. In this embodiment, the retention device is a maxillary molar arrow snap ring.

In a specific embodiment of the present invention, the arrow-head snap ring of the lip-side hook and the upper jaw molar is made of a steel wire with a diameter of 0.8-0.9mm, which can reduce the foreign body sensation of the patient and has a better performance of correction effect on the premise of maintaining a certain strength and good retention.

In one embodiment of the present invention, the first labial traction hook 101, the second labial traction hook 102 and the lingual button 2 are located at the same height. When the two pairs of traction hooks and the lingual buttons are connected through the elastic rubber ring, a pair of force couples are formed, so that the correction force can pass through the resistance center of the teeth, the teeth are prevented from being depressed or stretched, and the teeth cannot be damaged. Under the action of a couple of force, the twisted teeth can be effectively returned to be brought into normal dentition, the occlusion interference of the upper and lower anterior teeth can be eliminated, and the beauty of the dentognathic face of the patient can be recovered. The gap far-center adjacent guide plate 4 of the utility model is a plastic guide plate consistent with the tooth form and is matched with the gap far-center of the torsional tooth. In the embodiment, the space between the plastic base and the twisted teeth is kept to be 1mm, the plastic base is ground in a graded manner along with the gradual correction of the twisted teeth in the correcting process, the twisted teeth are prevented from moving far and far, and finally, a proper dentition space is kept for the eruption of the lateral incisors.

In a specific implementation of the utility model, the far-middle adjacent surface guide plate 4 and the maxilla palatal side resin base support 6 are of an integrated structure, and the tail ends of a pair of lip side traction hooks and a pair of maxilla molar arrow snap rings are all embedded in the maxilla palatal side resin base support 6, so that the oral cavity of a child cannot be damaged, and the child patient can be easily picked and worn. The arrow clamp rings of the two-sided upper jaw molar can realize good retention, so that the appliance is balanced and stable in the oral cavity; the far and middle adjacent surface guide plate is connected with the maxillopalatal side resin base support in a curing way, so that the balance stability of the far and middle adjacent surface guide plate is ensured, and the far and middle adjacent surface guide plate is very suitable for correcting teeth of children.

The following introduces a preparation method of the upper anterior tooth 90-degree torsion appliance, which mainly comprises the following steps:

firstly, preparing an upper jaw and lower jaw working model of a child patient according to the requirements of a complete denture.

Secondly, finishing the working model: after checking the occlusion relation of the working model, the bottom surfaces of the upper and lower jaw working models are trimmed to be parallel to the jaw plane, and then the upper and lower jaw working models are overlapped according to the occlusion relation, so that the rear walls of the upper and lower jaw working model seats are on the same plane.

And thirdly, bending a lip side traction hook and an upper jaw molar arrow snap ring by adopting a stainless steel wire with the thickness of 0.8-0.9 mm. After bending is finished, the surface of the corresponding model is heated and fixed by using the medical wax sheet. Wherein, a pair of labial traction hooks are respectively fixed in the far middle gap of the middle incisor adjacent to the torsional teeth and at one side of the far middle gap of the torsional teeth in the working model; fixing an arrow head snap ring of the upper jaw molar on two sides; preferably the towing hook has a diameter of 2.5 mm.

Fourthly, a far-middle adjacent surface guide plate model which is suitable for the tooth surface is manufactured in the far middle of the twisted tooth by utilizing the medical wax sheet, and the gap between the guide plate and the twisted tooth is 1 mm.

Utilizing injection molding technology to manufacture the maxillo-palatal resin base support and the far and near surface guide plate, and comprising the following steps:

firstly, utilizing a light-cured resin molding sheet (the thickness is about 2mm), manufacturing a constant substrate on a gypsum working model on which a lip side traction hook, an arrow snap ring and a far and middle adjacent surface guide plate model are placed, utilizing light-curing for 10min, taking out, and polishing a phenanthrene edge for later use.

Then, the agar impression is copied, the device (the working model provided with the lip side traction hook, the upper jaw molar arrow snap ring and the far and near surface guide plate model) is placed into an agar type box, liquid agar liquid is slowly injected into the box, the box is kept stand for 2 hours, after agar is completely solidified, the base of the agar type box is opened, and the working model is taken out to form the agar impression.

Manufacturing a resin injection channel and an exhaust hole: 3 stainless steel tubes were inserted into three injection ports of the mold box to form one injection port and two exhaust ports. Taking out the permanent substrate, removing the far and middle adjacent plate model piled and molded by wax, coating a separating agent on the surface of the gypsum working model with the traction hook and the arrow head card, accurately resetting the model into an agar impression, and then pouring resin. The separating agent is used for forming an isolating film between the surface of the working model and the resin, so that the surface of the working model and the resin are not adhered, and then the surface of the working model and the resin are conveniently separated.

In this example, the infused resin was Vertex injection molded resin powder manufactured by waters corporation, netherlands, in a ratio of 1.5 g: measuring 1.0ml, pouring into a special mixing cup, and uniformly stirring for about 20 s. In the pouring process, the injection molding opening faces upwards, and resin is injected into the injection molding opening until the resin overflows from the exhaust holes on the two sides. After the resin is filled, the resin is put into a Vertex-MAC0001 automatic pressure cooker, polymerized for 30min at 55 ℃ and under the pressure of 2.5bar, taken out and naturally cooled to the room temperature. The prepared maxilla palatal side resin base and the far and near surface guide plate are of an integrated structure, and the tail ends of the pair of labial side traction hooks and the pair of maxilla molar arrow snap rings are embedded in the maxilla palatal side resin base 6.

Sixthly, polishing the manufactured maxillary and palatal side resin base and the phenanthrene edge of the far and near surface guide plate smoothly by using a dental special slow-speed mobile phone, and then, re-positioning the resin base and the phenanthrene edge on the maxillary working model to complete the preparation of the appliance. The dental special slow-speed mobile phone adopted in the embodiment is manufactured by NSK corporation of japan, and has the model number: 1S-205, rotating speed 22000 r/min.

After the appliance is manufactured, the appliance is further tried on and adjusted in the mouth. When the appliance is worn, the appliance is directly taken down from the working model, the resin base support on the upper jaw palate side is attached to the upper jaw palate part of the oral cavity, the arrow clamping rings of the upper jaw molars on two sides are sleeved on the upper jaw molars on two sides, and the positions of the far and middle adjacent surface guide plates are fixed. In addition, lingual buttons are required to be pasted on two sides of the twisted teeth of the child patient, the first labial traction hook 101 is connected with the lingual button corresponding to the proximal gap through an elastic rubber ring, and the second labial traction hook 102 is connected with the lingual button corresponding to the distal gap through an elastic rubber ring 3, so that the installation is completed.

Along with the gradual correction of the twisted teeth in the correcting process, the gap between the far and middle adjacent surface guide plates 4 and the twisted teeth is kept between 0.8 mm and 1.2mm in a mode of grinding the far and middle adjacent surface guide plates by a small amount in a fractional manner, and meanwhile, the gap between the far and middle missing teeth of the twisted teeth is kept in the process of homing of the twisted teeth, so that the far and middle movement of the twisted teeth is avoided, and the adjacent upper jaw side incisors have enough space to sprout.

When the appliance is required to be brushed or cleaned, the appliance can be integrally taken out simply and conveniently without damaging the oral cavity of the child by taking down the elastic rubber ring and taking down the arrow head snap ring sleeved on the upper jaw molars at the two sides.

The embodiments described above are intended to facilitate one of ordinary skill in the art in understanding and using the present invention. It will be readily apparent to those skilled in the art that various modifications to the above-described embodiments may be made, and the generic principles defined herein may be applied to other embodiments without the use of inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications to the present invention according to the disclosure of the present invention within the protection scope of the present invention.

Claims (8)

1. An upper anterior tooth 90-degree torsion appliance is characterized by comprising a lingual button (2), a first labial side traction hook (101), a second labial side traction hook (102), an elastic rubber ring (3), a retention device (5), a far and middle adjacent surface guide plate (4) and a maxillofacial side resin base (6);

the maxillary palate side resin base support (6) is arranged at the oral maxillary palate, the far and middle adjacent surface guide plate (4) is arranged in a far and middle gap of the twisted teeth, and the far and middle adjacent surface guide plate (4) is connected with the maxillary palate side resin base support (6);

the lingual button (2) is fixed on two side surfaces of the torsional tooth and respectively corresponds to the mesial gap and the distal gap; the first labial traction hook (101) is arranged in the far middle gap of the middle incisor adjacent to the twisted tooth, and the first labial traction hook (101) is connected with the lingual button corresponding to the near middle gap through an elastic rubber ring (3); the second lip side traction hook (102) is arranged in a far middle gap of the far middle adjacent surface guide plate (4), and the second lip side traction hook (102) is connected with a tongue side buckle corresponding to the far middle gap through an elastic rubber ring (3); the tail ends of the first labial traction hook (101) and the second labial traction hook (102) are embedded in the maxillofacial resin base (6);

the retention device (5) is sleeved on the maxillary molars on the two sides, and the tail end of the retention device (5) is embedded in the resin base (6) on the maxillary and palatal side.

2. The upper anterior tooth 90 degree torsion appliance of claim 1, wherein the first labial retractor hook (101), the second labial retractor hook (102) and the lingual button (2) are located at the same height.

3. The upper anterior 90 degree torsional appliance of claim 1, wherein the retention means (5) is a maxillary molar arrow clasp.

4. The upper anterior teeth 90 degree torsion appliance of claim 3, wherein the arrow head clasps are made of stainless steel wires with a diameter of 0.8-0.9 mm.

5. The upper anterior tooth 90-degree torsion appliance according to claim 1, wherein the far and middle adjacent surface guide plate (4) is in a tooth cross section shape and is matched with the far and middle gaps of the torsion teeth; the clearance between the far and middle adjacent guide plates (4) and the torsional teeth is kept between 0.8 and 1.2 mm.

6. The upper anterior 90 degree torsional appliance of claim 5, wherein the distal proximal face guide (4) is integral with the maxillo-palatal resin base (6).

7. The upper anterior teeth 90 degree torsion appliance of claim 1, wherein the first labial retractor hook (101) and the second labial retractor hook (102) are made of stainless steel wire with a diameter of 0.8-0.9 mm.

8. The upper anterior tooth 90 degree torsion appliance of claim 7, wherein the hook bend diameter of the first labial retractor hook (101) and the second labial retractor hook (102) is 2.5 mm.

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