CN107997836A - Force down Occlusal pad formula appliance of individual teeth and preparation method thereof and application method - Google Patents

Abstract

The present invention relates to an occlusal pad type appliance for depressing individual teeth and its manufacturing method and usage method. The occlusal pad type appliance includes a base and an orthodontic rubber ring. tendon hook and at least two interproximal hooks; the buccal rubber band hook is fixed on the buccal side corresponding to the target tooth, and the lingual rubber band hook is fixed on the lingual side corresponding to the target tooth; the interproximal hook is fixed on the adjacent tooth other than the target tooth. Gap: There is a labial-lingual gap on the base corresponding to the maxillofacial position of the target tooth, and the orthodontic rubber ring is hung on the buccal rubber band hook and the lingual rubber band hook through the gap. The present invention can efficiently depress individual teeth, adopts interproximal hooks and mucosal retention, has the function of dispersing dislocation force, and its strength can maintain the position of non-target teeth, so while depressing and elongating teeth, other non-target teeth can be maintained The position of the tooth remains unchanged; the orthodontic rubber band is used to apply a controlled, intermittent light force, which is beneficial to the depression of the tooth.

Description

Occlusal appliance for depressing individual teeth, method of making and use thereof

technical field

The invention relates to the technical field of orthodontics, in particular to an occlusal pad type appliance for depressing individual teeth, a manufacturing method and a using method thereof.

Background technique

With economic development and social progress, more and more people choose to receive orthodontic treatment because of aesthetic or functional requirements. In clinical work, orthodontists exert force on teeth, jaws or temporomandibular joints through various appliances to make the teeth tilt, integrate, control roots, vertically (elongate or depress) or rotate, and make the jaw shape And the position is rebuilt, so as to achieve the established correction effect and the goal of balanced, beautiful and stable correction.

In the face of complex dentofacial deformities, orthodontists often need to depress individual teeth (press into the alveolar bone) to align and level the dentition, eliminate occlusal interference, adjust the relationship between the jaws, and obtain a coordinated facial shape. Depressing individual teeth is different from depressing a dentition (a dentition that contains multiple adjacent teeth). Depressing the dentition focuses on depressing the anterior or posterior dentition in order to change the overbite relationship between the upper and lower dentition (that is, to establish a normal vertical relationship between the upper and lower dentition) or to correct the inclination of the occlusal plane, which may include individual Depression of the target tooth. However, when the position relationship between the upper and lower dentition is good and some teeth are relatively elongated, it is necessary to lower individual teeth to achieve this. At this time, it is often required to avoid changing the shape of the dentition and the position of other teeth when lowering. .

However, compared with other tooth movement methods (such as elongation, rotation, mesial and distal overall movement, etc.), the depression of teeth is relatively difficult, especially the depression of multi-rooted teeth or fused teeth. The reason is that there is a strong resistance of periodontal ligament fibers around the tooth, and considerable bone resorption at the apex of the tooth is necessary to effectively press the tooth in. The alveolar bone in the apical area is relatively dense, and the teeth are not easy to press in and move. Especially for adult patients, if the force is too large, it may easily lead to side effects such as root resorption.

At present, the commonly used clinical methods to depress individual teeth are:

1. Fixed appliance arch wire depression method: locally bend a curved wire with depression effect on the fixed appliance arch wire (such as multi-curved square wire arch, multi-purpose arch, segmental arch, stepped curvature, etc.) to depress the target tooth. Its advantage is that it belongs to an intraoral fixation device and has low requirements for patient compliance. But the disadvantage is that because the arch wire acts on the entire dentition, when the target tooth is depressed, it will produce an opposite force on the remaining teeth, especially the adjacent teeth, and the depressing effect is often slow and limited. For the labial fixed appliance, only the buccal tip is often depressed, and the tongue tip is not well depressed, resulting in excessive torque; while for the lingual fixed appliance, only the tongue tip is often depressed, and the buccal tip is not well depressed. resulting in too little torque. In addition, the arch wire bending process may be complicated, requiring high clinical experience and overall control ability of doctors. Since this method needs to be used in conjunction with orthodontic brackets, it is not conducive to the maintenance of oral hygiene of patients.

2. Micro-screw-assisted depression method: micro-screws are surgically implanted in the local alveolar bone, and the target teeth are depressed by the implants and force devices (such as rubber chains, coil springs, etc.), often with fixed orthodontics device used together. Its advantage is that the anchorage (that is, the unit that supports the orthodontic force and resists the reaction force) comes from the implant nail in the bone, which has little impact on the rest of the teeth. It is an intraoral fixation device and has low requirements for patient compliance. However, its disadvantage is that the implantation operation is traumatic, and complications such as implant nail falling off and infection may occur. In addition, for the depression of the mandibular teeth, due to the difficulty of implanting implant screws on the lingual side, when the depression force is applied only from the labial (buccal) side, it is often accompanied by the labial (buccal) tilt of the teeth, resulting in excessive torque.

3. Thermoforming compression-film depression appliance: the compression-film retainer covering the dentition is formed by the thermal compression molding process, and the depression gap is prepared on the occlusal surface of the target teeth and the solid surface is prepared on the lip (buccal) lingual (palatal) surface. The positioning wing, combined with the force-enhancing device (such as orthodontic rubber ring), and the adjacent tooth bonding and retaining accessories can achieve the effect of depressing the teeth. The advantage of this method is that the patient can depress the teeth without brackets on the tooth surface. At the same time, the appliance can be removed, and the maintenance of oral hygiene is more convenient. However, the disadvantage is that it cannot be used together with fixed aligners, and the pressure-membrane aligners are relatively insufficient in strength and often need to be replaced regularly, otherwise they are easily deformed and damaged.

Contents of the invention

The present invention aims to provide an occlusal pad type appliance for depressing individual teeth and its manufacturing method and usage method, which can avoid side effects as much as possible while ensuring the therapeutic effect, and adopt light force and intermittent force when depressing and moving.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows:

The occlusal pad type appliance for depressing individual teeth and its manufacturing method and usage method, the occlusal pad type appliance for depressing individual teeth includes a base and an orthodontic rubber ring, the base has a buccal rubber band hook, a lingual side Rubber band hook and at least two interproximal hooks; the buccal rubber band hook is fixed on the buccal side corresponding to the target tooth, and the lingual rubber band hook is fixed on the lingual side corresponding to the target tooth; the interproximal hook is fixed on the other side of the target tooth Adjacent gap: There is a gap through the lip-lingual direction on the base corresponding to the maxillofacial position of the target tooth, and the orthodontic rubber ring is hung on the buccal rubber band hook and the lingual rubber band hook through the gap.

Further, the width of the gap is 2mm.

Wherein, the thickness of the base is 1mm-2mm.

Further, the gap extends 2mm-3mm along the lip of the crown and the lingual surface.

A method of manufacturing an occlusal appliance for depressing individual teeth, comprising the steps of:

Step 1, obtaining a plaster model of the patient's dentition where the target tooth is located;

Step 2, use stainless steel wire to bend the interproximal hook, the buccal rubber band hook and the lingual rubber band hook;

Step 3: Fix the interproximal hook, buccal rubber band hook and lingual rubber band hook on the plaster model; the interproximal hook is fixed in the interproximal space other than the target tooth, and the buccal rubber band hook is fixed in the buccal side corresponding to the target tooth , the lingual rubber band hook is fixed on the lingual side corresponding to the target tooth;

Step 4, mark the extension range of the base on the plaster model;

Step 5, coating a separating agent within the extension range of the base on the plaster model;

Step 6, mixing the base material, filling the base material along the range line of the base to form an occlusal pad;

Step 7. After the base material is solidified, mark the occlusal surface where the target tooth is located on the base, and make a gap through the lip-lingual direction on the occlusal surface. The depth of the gap is determined according to the height of the target tooth;

Step 8: Select a suitable orthodontic rubber ring and hang it on the buccal rubber band hook and the lingual rubber band hook through the gap to form an occlusal pad type appliance.

Wherein, in step 7, a gap is made on the base with a dental slow-speed handpiece.

Further, in step 7, the gap extends 2mm-3mm along the lip of the crown and the lingual surface.

The method of using the occlusal aligner that depresses individual teeth, wears the occlusal aligner in the patient's mouth, and replaces the orthodontic rubber ring every 24 hours.

Compared with the prior art, the present invention has the following beneficial effects:

1. The occlusal pad type appliance of the present invention can efficiently depress individual teeth, adopts interproximal hooks and mucosal retention, has the effect of dispersing dislocation force, and its strength can maintain the position of non-target teeth, so it is effective in depressing and elongating teeth At the same time, the position of the remaining non-target teeth can be kept unchanged; the orthodontic rubber ring is used to apply controllable and intermittent light force, which is beneficial to the depression of the teeth; it has high mechanical strength and is not easy to damage;

2. Since it is non-invasive, there are fewer complications, and the overall depression of the lip (buccal) and lingual sides of the teeth can be achieved, avoiding abnormal changes in the torque of the crown;

3. It can be used with fixed brackets or without brackets. It is a removable removable appliance, which is convenient for patients to maintain oral hygiene and reduce the incidence of tooth demineralization, caries and periodontal disease;

4. The manufacturing method is simple and easy to master, saving time and economic costs for clinical operations.

Description of drawings

Fig. 1 is a structural representation of the present invention;

In the figure: 1-base, 2-orthodontic rubber ring, 3-buccal rubber band hook, 4-lingual rubber band hook, 5-proximal hook, 6-gap.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Fig. 1, the occlusal pad type appliance for depressing individual teeth disclosed by the present invention comprises a base 1 and an orthodontic rubber ring 2, and the base 1 has a buccal rubber band hook 3, a lingual rubber band hook 4 and At least two interproximal hooks 5; the buccal rubber band hook 3 is fixed on the buccal side corresponding to the target tooth, and the lingual rubber band hook 4 is fixed on the lingual side corresponding to the target tooth; the interproximal hook 5 is fixed on the other side of the target tooth Adjacent gap: There is a gap 6 through the lip-lingual direction on the base 1 corresponding to the maxillofacial position of the target tooth, and the orthodontic rubber ring 2 is hung on the buccal rubber band hook 3 and the lingual rubber band hook 4 through the gap 6 .

Wherein, the width of the gap 6 is 2 mm. The thickness of the base 1 is 1mm-2mm. Gap 6 extends 2mm-3mm along the crown lip and lingual surface.

A method of manufacturing an occlusal appliance for depressing individual teeth, comprising the steps of:

Step 1, obtaining a plaster model of the patient's dentition where the target tooth is located;

Step 2, trim the plaster model, and use stainless steel wire to bend the interproximal hook, the buccal rubber band hook and the lingual rubber band hook;

Step 3: Fix interproximal hooks, buccal rubber band hooks, and lingual rubber band hooks on the plaster model; the interproximal hooks are fixed in the interproximal spaces other than the target teeth, usually in the interproximal spaces of the posterior teeth, and placed as symmetrically as possible; on the buccal side The rubber band hook is fixed on the buccal side corresponding to the target tooth, and the lingual rubber band hook is fixed on the lingual side corresponding to the target tooth; the hook is bent at the incisal end of the crown or 8 mm from the occlusal surface or should avoid the bracket position;

Step 4. Use red and blue pencils to mark the extension range of the base on the plaster model;

Step 5, coating a separating agent within the extension range of the base on the plaster model;

Step 6, mixing the base material, filling the base material along the range line of the base to form an occlusal pad;

Step 7. After the base material is solidified, mark the occlusal surface of the target tooth on the base with a marker, and make a gap through the lip-lingual direction on the occlusal surface. The depth of the gap is determined according to the height of the target tooth;

Step 8: Select a suitable orthodontic rubber ring and hang it on the buccal rubber band hook and the lingual rubber band hook through the gap to form an occlusal pad type appliance.

Wherein, in step 7, a gap is made on the base with a dental slow-speed handpiece. In step 7, the gap 6 extends 2mm-3mm along the lip of the crown and the lingual surface, and the extension length is appropriately increased or decreased according to the desired depression height.

How to use the occlusal aligner that depresses individual teeth, wear the occlusal aligner in the patient's mouth, adjust it properly, ask the patient to wear the aligner every day (except eating and brushing teeth), and replace the orthodontic every 24 hours Rubber band 2, regular follow-up visits.

The occlusal pad type appliance of the present invention can efficiently depress individual teeth, and successfully depresses a fused tooth of the patient's right mandibular by 2.5mm within two months by applying a depressing force of 100-150g. The occlusal splint appliance adopts interproximal hooks and mucosal retention, which can disperse the dislocation force, and its strength can maintain the position of non-target teeth, so it can keep the position of other non-target teeth in place while depressing the elongated teeth. change; the orthodontic rubber ring is used to apply controllable, intermittent light force, which is beneficial to the depression of the teeth; it has high mechanical strength and is not easy to damage;

This method is non-invasive, has fewer complications, and can achieve the overall depression of the lip (buccal) and lingual sides of the teeth, avoiding abnormal changes in the torque of the crown; it can be used with fixed brackets or without brackets. It is a removable removable appliance, which is convenient for patients to maintain oral hygiene, and reduces the incidence of tooth demineralization, caries and periodontal disease; the manufacturing method is simple, easy to master, and saves time and economic costs for clinical operations.

Certainly, the present invention also can have other multiple implementation modes, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes All changes and modifications should belong to the scope of protection of the appended claims of the present invention.

Claims (10)

1. force down the Occlusal pad formula appliance of individual teeth, it is characterised in that:Including base and correction elastic tape, there is cheek on base Side rubber band hook, tongue side rubber band hook and at least two embrasure hooks；Cheek side rubber band hook is fixed on corresponding to target tooth Cheek side, tongue side rubber band hook is fixed on tongue side corresponding to target tooth；Embrasure hook is fixed on the adjacent gap beyond target tooth； Corresponded on the base position of target dentofacial have perforation words to gap, correction elastic tape is hung on cheek side rubber by gap Rubber band is linked up with and tongue side rubber band is linked up with.

2. Occlusal pad formula appliance according to claim 1, it is characterised in that：The width of gap is 2mm.

3. Occlusal pad formula appliance according to claim 1 or 2, it is characterised in that：The thickness of base is 1mm-2mm.

4. Occlusal pad formula appliance according to claim 1, it is characterised in that：Gap extends 2mm- along corona lip, lingual surface 3mm。

5. the method for the Occlusal pad formula appliance described in any one of manufacturing claims 1-4 claim, it is characterised in that：Bag Include following steps：

Step 1, the plaster cast of denture where obtaining patients target's tooth；

Step 2, maintenance embrasure hook, cheek side rubber band hook and tongue side rubber band is bent with stainless steel wire to link up with；

Step 3, embrasure hook, cheek side rubber band hook and tongue side rubber band hook are fixed on plaster cast；Embrasure hook is fixed on Adjacent gap beyond target tooth, cheek side rubber band hook are fixed on the cheek side corresponding to target tooth, and tongue side rubber band hook is fixed In the tongue side corresponding to target tooth；

Step 4, the scope of base stretching, extension is marked on plaster cast；

Step 5, on plaster cast release agent is coated with base extending range；

Step 6, adjust and mix base material, fill out base material along base scope micro USB, form Occlusal pad；

Step 7, treat that base material cures, the conjunction face where target tooth is marked on base, perforation words are produced in conjunction face To gap, the height that the depth of gap forces down target tooth as needed determines；

Step 8, choose suitable correction elastic tape to be hung on cheek side rubber band hook and tongue side rubber band hook by gap, shape Into Occlusal pad formula appliance.

6. according to the method described in claim 5, it is characterized in that：The a diameter of 0.7mm-0.8mm of stainless steel wire in step 2.

7. according to the method described in claim 5, it is characterized in that：The width of gap is 2mm in step 7.

8. the method according to claim 5 or 7, it is characterised in that：With dentistry, head makes on base at a slow speed in step 7 Go out gap.

9. the method according to claim 5 or 7, it is characterised in that：In step 7, gap (6) extends along corona lip, lingual surface 2mm-3mm。

10. the application method of the Occlusal pad formula appliance described in any one of claim 1-4 claim, in pendant in patient mouthful Wear Occlusal pad formula appliance, it is characterised in that：It is every 24 it is small when replace a correction elastic tape.