A tooth movable retainer

Abstract

The present invention belongs to the technical field of oral orthodontics, and specifically relates to a tooth movable retainer, comprising an outer dental arch retainer, an inner dental arch retainer and a steel wire body, wherein the two ends of the outer dental arch retainer are respectively connected and fixed to the two ends of the inner dental arch retainer through the steel wire body, and the dental arch grooves formed by the outer dental arch retainer and the inner dental arch retainer on the horizontal plane retain the upper and lower dental arches in the dental arch grooves at the same time, and the contact surfaces of the outer dental arch retainer and the inner dental arch retainer with the dental arch teeth are smooth, and the retainer is not affected by the undercut of the teeth, and is convenient to remove, thereby extending the service life of the retainer, and the steel wire body placed between the upper and lower mandibular mucosa can prevent the upper and lower dental arch teeth from biting each other, and reduce the problem of the upper and lower teeth becoming loose due to the bite force, and the retainer has a simple and firm structure, is easy to make, is easy to clean, has a beautiful appearance, and has a slight foreign body sensation.

Description

Technical Field

[0001] The present invention relates to the technical field of oral orthodontics, and in particular to a tooth movable retainer. Background Art

[0002] After the correction of maxillary and mandibular dental deformities is completed, the teeth are still unstable in their new positions. The dental arch and dentition, especially those in the growth period, may also cause recurrence of dental deformities due to improper use and the lack of external correction. In order to consolidate the therapeutic effect, ensure the stable position of the dentition, and keep the teeth in an ideal and beautiful state, it is necessary to take protective measures for the dental arch after the correction. This protective measure is called tooth retention. The method used is to wear a dental retainer for the dental arch after the correction to keep the teeth stable in the new position of the alveolar bone until the alveolar bone remodeling is completed. As an important means to maintain the stable position of teeth after correction, dental retainers can be divided into removable dental retainers and fixed retainers. The technical solutions of the two retainers have their own advantages and disadvantages. However, with the continuous advancement of new materials and processes, removable retainers are becoming more and more widely used due to their many advantages such as easy replacement, little impact on daily life, and overall aesthetics. Existing removable retainer technology generally adopts the method of hot-pressing and molding medical resin materials according to the shape of the dental arch to produce braces that fit the shape of the dental arch. Transparent braces are made separately for the shapes of the upper and lower dental arches to achieve the desired shape while meeting the requirements of aesthetic appearance to the greatest extent. However, while such braces fit the shape of the teeth in the dental arch tightly, due to the undercuts in the teeth, it is often inconvenient to wear and take off the braces, and the sharp parts of the teeth are damaged prematurely. Moreover, because the upper and lower teeth can still bite forcefully during the retaining process, the braces are easily deformed and damaged by pressure, which is also detrimental to the stability of the new position after the correction is completed. If individual teeth are not corrected in place and need further adjustment, this type of removable retainer with braces will be powerless.

[0003] Chinese utility model patent CN210354949U discloses a pressure-mode removable orthodontic appliance, including a retainer, a positioning lingual buckle and an elastic device connecting the retainer and the lingual buckle. The retainer is provided with a positioning lingual buckle reserved hole and an adjustment lingual buckle that are adapted to the position of the positioning lingual buckle. The two ends of the elastic device are respectively nested and attached to the adjustment lingual buckle and the positioning lingual buckle. The elastic device is an orthodontic rubber fastener or an orthodontic rubber chain. Compared with traditional retainers, this utility model has low cost, simple production, less harm to the patient's teeth and is beautiful. The gap is closed by the pressure-mode removable appliance, and a small number of scattered gaps in the posterior tooth area (the anterior tooth area can also be used) are corrected, which can maintain beauty and continue to maintain the retaining effect on non-moving teeth. Compared with full-mouth bonded fixed appliances, the device is small, can be removed by oneself, and is highly comfortable for patients. This utility model utilizes the positioning function of the retainer in conjunction with a fixed brace to achieve the dual effects of tooth retention and correction. However, it is not difficult to see that the retainer, which plays a basic positioning function, must ensure the precise fit between the dental arch teeth and the retainer in order to achieve the positioning function. This will also bring about early wear and many inconveniences due to tooth undercuts during the retainer removal process. At the same time, the problem of retainer damage due to occlusal pressure still exists. Summary of the Invention

[0004] In response to the problems existing in existing dental retainers, the purpose of the present invention is to propose a new technical solution, which can maintain the stable position of teeth in the dental arch, is not affected by tooth undercuts, is easy to remove, and is durable. At the same time, it can effectively avoid the recurrence of dental deformities caused by occlusal contact of corrected teeth.

[0005] Specifically, the present invention proposes a movable tooth retainer, which includes an outer dental arch stop, an inner dental arch stop and a steel wire body. The two ends of the outer dental arch stop are respectively connected and fixed to the two ends of the inner dental arch stop through the steel wire body. The arc of the outer dental arch stop on the horizontal plane corresponds to the dental arch shape of the upper and lower mandibular dental arches on the labial and buccal sides, and the arc of the inner dental arch stop on the horizontal plane corresponds to the dental arch shape of the upper and lower mandibular dental arches on the lingual side. The arc of the steel wire body on the horizontal plane is parallel to the arc of the teeth at both ends of the upper and lower mandibular dental arches, and the two ends of the steel wire body are respectively embedded in the two ends of the outer dental arch stop and the inner dental arch stop. During use, the dental arch grooves formed by the outer dental arch stop and the inner dental arch stop on the horizontal plane keep the upper and lower mandibular dental arches in the dental arch grooves at the same time. The steel wire body, which plays an auxiliary blocking role in preventing the upper and lower mandibular dental arch teeth from biting each other, is placed between the mandibular mucosa of the upper and lower jaws, and the contact surfaces of the outer dental arch stop and the inner dental arch stop with the dental arch teeth are smooth.

[0006] Furthermore, the contact surface between the outer dental arch stop and the labial teeth of the upper and lower dental arches has a thickness of 1.0 to 1.5 mm, and the contact surface is colorless and transparent.

[0007] Furthermore, the thickness of the contact surface between the outer dental arch stop and the buccal dentition of the maxillary and mandibular dental arches is 1.5 to 3.0 mm.

[0008] Furthermore, the outer dental arch stop and the inner dental arch stop are both formed by hot pressing resin films.

[0009] Furthermore, the steel wire body is made of 316L stainless steel wire with a diameter of 1.5 mm.

[0010] Compared with existing tooth retainers, the tooth removable retainer of the present invention has the following beneficial effects:

[0011] 1. The outer and inner arch retainers of the removable dental retainer of the present invention are both smooth and unaffected by undercuts, making it easy to remove the retainer. Furthermore, the smooth surface has no protrusions that would cooperate with undercuts, thereby overcoming the problem of damage to the retainer caused by frequent collisions between the protrusions and the teeth during removal, and effectively increasing the service life of the retainer.

[0012] 2. The tooth removable retainer of the present invention can effectively prevent the teeth of the upper and lower dental arches from biting each other by placing the steel wire body between the upper and lower mandibular mucosa, thereby reducing the problem of the upper and lower teeth, especially the teeth that have just been corrected, becoming loose again due to the action of the bite force.

[0013] 3. The removable dental retainer of the present invention simultaneously holds and positions the teeth of the upper and lower dental arches. This allows the retainer to stabilize the position of the dentition while providing auxiliary correction for the protrusion of the upper dental arch (commonly known as buck teeth). In addition, by fine-tuning the outer and inner arch stops, further correction can be achieved for individual teeth whose positions are still not ideal after correction.

[0014] 4. The tooth removable retainer of the present invention has a simple and firm structure, is easy to manufacture, easy to remove and clean, and is not likely to cause tooth caries or inflammation of periodontal tissues. It has a good retaining effect while having an aesthetic appearance and a slight foreign body sensation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic top view of the structure of the removable tooth retainer of the present invention.

[0016] Figure 2 for Figure 1 3D rendering of the . DETAILED DESCRIPTION

[0017] Below, combined with the attached Figures 1-2 , the tooth movable retainer of the present invention is further explained.

[0018] like Figures 1-2The tooth removable retainer is shown in FIG, and the tooth removable retainer includes an outer dental arch stop 1, an inner dental arch stop 2 and a steel wire body 3. The two ends of the outer dental arch stop 1 are respectively connected and fixed to the two ends of the inner dental arch stop 2 by the steel wire body 3. The arc shape of the outer dental arch stop 1 in the horizontal plane corresponds to the dental arch shape of the upper and lower dental arches on the labial and buccal sides, and the arc shape of the inner dental arch stop 2 in the horizontal plane corresponds to the dental arch shape of the upper and lower dental arches on the lingual side. The arc shape of the steel wire body 3 in the horizontal plane is parallel to the arc shape of the teeth at both ends of the upper and lower dental arches, and the two ends of the steel wire body 3 are respectively embedded in the two ends of the outer dental arch stop 1 and the inner dental arch stop 2. In use, the dental arch groove formed by the outer dental arch stop 1 and the inner dental arch stop 2 in the horizontal plane keeps the upper and lower dental arches in the dental arch groove at the same time. The steel wire body 3, which plays an auxiliary blocking role in preventing the upper and lower dental arch teeth from biting each other, is placed between the mandibular mucosa of the upper and lower jaws, and the contact surface of the outer dental arch stop 1 and the inner dental arch stop 2 with the dental arch teeth is smooth.

[0019] Furthermore, the contact surface between the outer dental arch stop 1 and the labial teeth of the maxillary and mandibular dental arches has a thickness of 1.0 to 1.5 mm, and the contact surface is colorless and transparent.

[0020] Furthermore, the thickness of the contact surface between the outer dental arch stop 1 and the buccal dentition of the maxillary and mandibular dental arches is 1.5 to 3.0 mm.

[0021] Furthermore, the outer dental arch stop 1 and the inner dental arch stop 2 are both formed by hot pressing resin films.

[0022] Furthermore, the steel wire body 3 is made of 316L stainless steel wire with a diameter of 1.5 mm.

[0023] The present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes of the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the appended claims.

Claims

1. A tooth movable retainer, characterized in that: The movable tooth retainer comprises an outer dental arch block, an inner dental arch block and a steel wire body, the two ends of the outer dental arch block are respectively connected and fixed with the two ends of the inner dental arch block through the steel wire body, the arc of the outer dental arch block on the horizontal plane corresponds to the shape of the dental arch of the maxillary teeth and the mandibular teeth on the lip and cheek sides, the arc of the inner dental arch block on the horizontal plane corresponds to the shape of the dental arch of the maxillary teeth and the mandibular teeth on the lingual side, the arc of the steel wire body on the horizontal plane is parallel to the tooth arcs of the maxillary teeth and the mandibular teeth at both ends, the two ends of the steel wire body are respectively embedded in the two ends of the outer dental arch block and the inner dental arch block, the dental arch grooves formed by the outer dental arch block and the inner dental arch block on the horizontal plane keep the dental arches of the maxillary teeth and the mandibular teeth in the dental arch grooves at the same time, the steel wire body which plays an auxiliary barrier role in preventing the maxillary teeth and the mandibular teeth from biting each other is placed between the maxillary bone and the mandibular mucosa, the contact surface of the outer dental arch block and the inner dental arch block with the dental arch is smooth.

2. A tooth removable retainer according to claim 1, characterized in that: The thickness of the contact surface between the outer dental arch stopper and the labial dental arch of the maxillary teeth and the mandibular teeth is 1.0 to 1.5 mm, and the contact surface of the labial dental arch is transparent.

3. A tooth removable retainer according to claim 2, characterized in that: The thickness of the contact surface between the outer dental arch stopper and the buccal dental arch of the maxillary teeth and the mandibular teeth is 1.5 to 3.0 mm.

4. A tooth removable retainer according to claim 1, characterized in that: The outer dental arch stopper and the inner dental arch stopper are both formed by hot pressing a resin film.

5. The tooth removable retainer according to claim 1, characterized in that: The steel wire body is made of 316L stainless steel wire with a diameter of 1.5 mm.

Images