CN219354213U - Novel two jaw cementation formula Twin-block - Google Patents

Abstract

The novel double-jaw cemented Twin-block is used for occlusion reconstruction of mandibular retroversion. The following problems exist with the conventional Twin-block technique. First, traditional Twin-block is movable, and patients are required to actively cooperate, so that the curative effect is poor. Second, excessive labial tilting of the lower anterior teeth results in labial fenestration and bone fracture. And thirdly, the occlusal surface of the jaw pad is a plane, which is not beneficial to chewing. Fourth, the course of treatment is long, and the efficiency is low. The utility model adopts double-jaw cementation to solve the treatment failure caused by poor compliance. The lip rod and the micro-implant nails are adopted to prevent the lower anterior teeth from windowing and cracking. Adopts an anatomical jaw pad, which is beneficial to chewing. Adopts early alignment to improve the treatment efficiency.

Description

Novel two jaw cementation formula Twin-block

Technical Field

The utility model is used for occlusion reconstruction of mandibular retroversion.

Background

Three problems are readily created during the leading mandible using conventional Twin-block techniques. Firstly, because traditional Twin-block is two jaw movable, the patient can freely take and wear, can not guarantee whether the patient wears enough time every day according to the doctor's advice to influence the effect of correcting. Second, because the conventional Twin-block leading mandibular procedure, the maxillary pad will exert a force on the mandibular pad, which will be transmitted through the mandibular pad to the lower anterior teeth, resulting in excessive labial tilting of the lower anterior teeth, which is extremely disadvantageous for some labial bone thin patients, and may result in unnecessary labial bone windowing and bone cracking of the lower anterior teeth. Third, the traditional Twin-block technology is double-stage correction, the process is long, the first stage is simply conducted on the mandible, and the efficiency is low. The upper and lower anterior teeth cannot be aligned early, and the problem of dentition misalignment is not alleviated at all after a patient has undergone a first-stage treatment.

Disclosure of Invention

Novel two jaws cementation formula Twin-block

1. In order to effectively prevent the forward failure of the mandible due to insufficient fit of the patient, the mandible cementation is designed.

2. In order to effectively prevent the situation of open window and bone fracture of the labial side of the lower anterior teeth caused by excessive labial tilting of the lower anterior teeth due to the forward guiding of the lower jaw by using the traditional Twin-block. The labial bar is designed on the labial side of the lower front teeth, a barrier is formed on the labial side of the lower front teeth, two micro-implant nails are matched during treatment, and the lower front teeth which are connected into a whole are pulled to the micro-implant nails in the mandibular posterior teeth areas at the two sides by using an elastic rubber chain, so that excessive labial inclination of the lower front teeth due to the influence of correction force during correction is prevented.

3. In the case of the upper and lower anterior teeth with sufficient labial bone mass and slight crowding of the upper and lower anterior teeth, the mandibular labial pole is removed when the mandible is stabilized in the leading position after 8 months of treatment, and the early alignment of the upper and lower anterior teeth is performed, which is beneficial to reducing the treatment period of patients.

The technical scheme adopted for solving the technical problems is as follows:

the novel double-jaw cementation type Twin-block comprises three parts of a screw upper jaw, a screw lower jaw and a micro-implant nail. The upper jaw part comprises a spiral bow expander, a casting belt ring, a plastic jaw pad and a welding bracket, and the lower jaw part comprises a casting belt ring, a plastic jaw pad, a welding bracket and a casting lip rod. The other part comprises two 2 x 10mm micro-implant nails.

The maxillary portion includes a cast strip, ranging from the first bicuspid tooth to the first molar tooth, with an edge one millimeter above the gingiva. The jaw pad is positioned between the first bicuspid tooth and the second bicuspid toothFace (S)/(S)>The face is anatomical and can be widely contacted with the occlusal face of the mandible. The middle is a 60-degree inclined plane, downward and far, and the range isSurrounding the first bicuspid area. And a bracket is welded on each of the two-sided first two-cusp buccal band ring areas. The left and right parts of the upper jaw are connected with the spiral arch expander by the palate bars, the connection point is the two-sided first bicuspid teeth and the gingiva-near position of the palate side of the first molar, and the palate bars are evenly separated from the palate mucosa by 3mm.

The mandibular part comprises a cast band ring ranging from the first bicuspid tooth with an edge one millimeter above the gingiva. The jaw pad is positioned in the first bicuspid area, is similar to a triangle, and is perpendicular to the middleThe face, distal bevel 60 °, upwardly and proximally. And a bracket is welded on each of the two-sided first two-cusp buccal band ring areas. And two sides are linked by a lip rod with the width of one millimeter and tightly attached to the tooth surface, and the linking site is near the middle of a first two-cusp buccal bracket on two sides, and the height is 1/3 of the junction between the lower front dental crown and the gingiva.

When the anterior teeth are engaged, the anterior teeth are incised and incised, and the occlusion is opened by 1-2mm.

The novel two jaws cementation type Twin-block needs to be matched with micro-implant for use, and generally, 2 x 10mm micro-implant nails are implanted into intervals between first molar teeth and second molar teeth on two sides of a lower jaw, and the two micro-implant nails are respectively left and right.

When the upper jaw part and the lower jaw part are worn in the mouth of a patient at first, the upper jaw part and the lower jaw part are in place smoothly and have good retention. The upper jaw and the lower jaw are worn in the mouth of a patient at the same time, occlusion should be wide and uniform, and anterior occlusion should be opened by 1-2mm. And taking the upper jaw and the lower jaw out of the patient, cleaning the tooth surface of the bonding area and drying. Cleaning the bonding surfaces of the upper jaw and the lower jaw, blow-drying, putting a proper amount of glass ion bonding agent, putting the glass ion bonding agent in the mouth of a patient again, removing the redundant bonding agent after the bonding agent is solidified, and giving an order. After the upper jaw part and the lower jaw part are adhered to the tooth surface and are adhered to the inside of the joint, the upper jaw pad near middle inclined plane and the lower jaw pad far middle inclined plane are used for forming a locking relation, so that the occlusion position of a patient is forced to be stabilized at the occlusion position of treatment design; thereby functioning as a leading mandible.

When the patient bites, the upper jaw pad is in the near-middle inclined plane and the lower jaw pad is out of the middle inclined plane, so that the locking effect of the upper jaw pad is passive, and the aim of leading the lower jaw is achieved. During treatment, new bone is formed on the condylar surface after mandibular advancement due to mandibular condyle bone reconstruction, ultimately stabilizing the mandible in the leading position. During the period, the upper jaw back teeth and the lower jaw front teeth form acting force and reacting force through the jaw pad inclined plane, so that the upper jaw back teeth move far and middle, the lower front teeth lips incline towards the middle, the upper jaw back teeth move far and middle to have positive effects on correction, and the lower jaw front teeth lips incline towards the middle to generate harm. Therefore, 2mm micro-implant nails are respectively implanted in the intervals of the first molar teeth and the second molar teeth of the two sides, the lower jaw part is pulled on the lower jaw micro-implant nails through the first two cuspid cheek-side welding brackets of the lower jaw by using the elastic rubber chain, and the generated traction force is enough to resist lip tilting force of the upper jaw back teeth on the lower jaw front teeth through the jaw pad. Thereby preventing the labial windowing and bone fracture of the lower anterior teeth, which may occur due to excessive labial tilting of the lower anterior teeth during treatment. The front part of the lower jaw is provided with a lip rod, two micro-implant nails are implanted in the rear teeth area of the lower jaw, and the lower jaw part is pulled on the micro-implant nails in the rear teeth area of the lower jaw through a first bicuspid cheek bracket of the lower jaw.

The maxillary arch expansion is carried out until the second month of wearing, the stress application frequency is 1 time/2 days, and the stress application lasts for 40 days.

When worn for the eighth month, the upper anterior teeth and the lightly crowded lower anterior teeth are early aligned when the lower jaw is stabilized in the anterior jaw position, so as to shorten the treatment period. The upper front teeth can be directly adhered to the bracket. The mandibular lip bar should be removed before the lower anterior teeth adhere to the brackets. In the traditional Twin-block double-stage correction process, the step is needed to be performed when the first stage correction is completely finished.

The novel double-jaw cementation type Twin-block can be removed when wearing the novel double-jaw cementation type Twin-jaw cementation type cement in the twelfth month, after the adhesive on the tooth surface is removed, the rear teeth are adhered to the bracket, and the occlusion of the rear teeth is assisted by the aid of box-shaped second traction with light force of 2 oz. After the desired treatment is reached, the appliance is removed and the retention phase is entered. At this time, two micro-implant nails can be considered to be removed from the posterior mandibular area.

The utility model has the beneficial effects that the novel double-jaw cementation Twin-block adopts a method of maxillary cementation to prevent treatment failure caused by unwilling to wear or insufficient wearing time of patients. The lip rod and the micro-implant nail are adopted to effectively limit lip tilting of the lower front teeth, so that the phenomenon that the lower front teeth are windowed and cracked by the bone at the labial side due to excessive lip tilting of the reaction force produced by the front lower jaw is prevented. The bracket is welded on the cheek side of the upper jaw two sides second bicuspid teeth and the cheek side of the lower jaw two sides first bicuspid teeth, which is beneficial to the early alignment of patients with mild crowding of upper and lower front teeth and sufficient bone quantity on the labial side, and reduces the treatment period.

Drawings

Fig. 1 is a top view of a maxillary oral cavity

Fig. 2 is a top view of a mandibular worn oral cavity

FIG. 3 is a rear side view of the upper and lower jaws worn in the mouth and engaged

FIG. 4 is a top view of the upper and lower jaws positioned outside the mouth

1: upper jaw welding bracket

2: maxillary jaw pad

3: mandibular lip band

4: mandibular jaw pad

5: mandible welding bracket

6: mandibular implant anchorage

7: maxillary arch expander

5. 6 are connected by elastic rubber chains

Detailed Description

1 selecting a suitable case. Wax biting after the model is taken to determine the position behind the mandibular anterior guide.

2, when the patient bites the wax, the patient is in a supine position, and the oral red wax sheet is baked and softened on an alcohol lamp and rolled into a wax block with the thickness of about 25 mm. The method comprises the steps of pre-bending into an arc shape, placing a maxillary posterior tooth area in a mouth of a patient, and covering the first double-sided bicuspids to the first molar and exposing anterior teeth by a wax block. Viewed intraoral, upper and lower incisors, midlines substantially aligned, bite open 1-2mm. The patient should be in normal facial form when looking at the face, and the midpoint of the chin should be located above the midline of the face. And (3) the upper and lower jaw models of the patient are combined with the wax blocks cooled in room temperature water and then checked to be correct, and the combined wax blocks are manufactured by a craftsman.

3, the upper jaw part and the lower jaw part are respectively worn in the mouth of the patient, and the patient should be in place smoothly and have good retention. The upper jaw and the lower jaw are worn in the mouth of a patient at the same time, occlusion should be wide and uniform, and anterior occlusion should be opened by 1-2mm. And taking the upper jaw and the lower jaw out of the patient, cleaning the tooth surface of the bonding area and drying. Cleaning the bonding surfaces of the upper jaw and the lower jaw, blow-drying, putting a proper amount of glass ion bonding agent, putting the glass ion bonding agent into the mouth of a patient again, and removing the redundant bonding agent after the bonding agent is solidified. 2mm micro-implant nails are implanted in intervals between the first molar teeth and the second molar teeth, and the lower jaw part is pulled on the lower jaw micro-implant nails through the first double-cuspid cheek-side welding bracket of the lower jaw by using an elastic rubber chain so as to prevent lower anterior labial bone windowing and bone cracking which can be generated by excessive labial tilting of lower anterior teeth during treatment. Patients are ordered to rinse the mouth and eat after two hours. After the novel double-jaw cementation type Twin-block is adhered, the diet of a patient is soft, hard food is not suitable, and the oral cavity is cleaned fully after each meal.

4, when the patient wears the device for the second month, the maxillary arch expansion is carried out, the stress application frequency is 1 time/2 days, and the stress application period is different from four weeks to six weeks according to the individual condition of the patient.

When worn for the eighth month, the upper anterior teeth and the slightly crowded lower anterior teeth were early aligned with the mandible stabilized in the anterior jaw position. The upper front teeth can be directly adhered to the bracket. The mandibular lip bar should be removed before the lower anterior teeth adhere to the brackets.

The novel double-jaw cementation type Twin-block can be removed when wearing the novel double-jaw cementation type Twin-jaw cementation type cement in the twelfth month, after the adhesive on the tooth surface is removed, the rear teeth are bonded with the bracket, and the occlusion of the rear teeth is assisted by the aid of box-shaped second traction with light force of 2 oz. After the desired treatment is reached, the appliance is removed and the retention phase is entered. At this time, two micro-implant nails can be considered to be removed from the posterior mandibular area.

Claims (4)

1. Novel two jaws cementation type Twin-block, characterized by include upper jaw part, lower jaw part and two piece micro-implant nail, upper jaw part includes spiral expander, casting belt ring, plastics jaw pad, welding bracket again, and lower jaw part includes casting belt ring, plastics jaw pad, welding bracket, lip pole:

the upper jaw part comprises a cast band defect ranging from a first bicuspid tooth to a first molar tooth, and the edge is positioned atOne millimeter above the gingiva; the jaw pad is positioned between the first bicuspid tooth and the second bicuspid toothFace (S)/(S)>The face is anatomical and widely contacted with the occlusal surface of the mandibular teeth; the middle is a 60-degree inclined plane, and the range of the inclined plane is downwards and distally in the first bicuspid area; welding a bracket on each of the cheek-side ring areas of the first double-cusp teeth on both sides; the left and right parts of the upper jaw are connected with the spiral arch expander by the palate rod, the connection point is a bilateral first bicuspid tooth and a first molar palate side gum-approaching position, and the palate rod is uniformly separated from the palate mucosa by 3mm;

the mandibular part comprises a casting belt ring, the range is a first double cuspid tooth, and the edge is positioned on the gingiva by one millimeter; the jaw pad is positioned in the first bicuspid area, is similar to a triangle, and is perpendicular to the middleA surface, a far-middle inclined surface of 60 degrees, upwards and inwards, and a bracket is welded on each of the first double-cusp cheek-side band ring areas on two sides; the two sides are linked by a lip rod with the width of one millimeter and tightly attached to the tooth surface, and the linking site is near the middle of a first two-cuspid cheek bracket on the two sides, and the height is 1/3 of the junction between the lower front dental crown and the gingiva;

the novel two jaw cementation formula Twin-block implants a piece of 2 x 10mm microposity nail in two side first molar of lower jaw and second molar socket interval, respectively about a total of two for the lower anterior labial slope of restriction.

2. The novel two-jaw cemented Twin-block according to claim 1, wherein the maxillary and mandibular parts are bonded to the face of the tooth.

3. The novel two-jaw cemented Twin-block according to claim 1, wherein the anterior mandibular lip is designed, two micro-implant nails are implanted in the posterior mandibular area, and the mandibular part is pulled over the micro-implant nails in the posterior mandibular area by the first two cuspid buccal bracket of the mandibular.

4. The novel bi-dental cemented Twin-block of claim 1, wherein the maxillary bilateral second bicuspid cheek side and the mandibular bilateral first bicuspid cheek side are welded with brackets.