Sliding push-pull type orthodontic device for implanting adjacent teeth
By installing a sliding push-pull orthodontic appliance on the implant to adjust the position of adjacent teeth using rubber chains, the problem of insufficient restorative space caused by tooth tilting is solved, achieving fast, low-cost, and non-invasive tooth adjustment and reducing the risk of oral diseases.
Patent Information
- Application Number
- CN202512041977.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-02-24
AI Technical Summary
Existing technologies for addressing insufficient restorative space caused by tooth tilting after implantation have drawbacks such as long treatment cycles, high costs, significant damage to dental tissues, and increased foreign body sensation in the mouth. Furthermore, they are difficult to effectively expand the restorative space, which can easily lead to oral diseases.
A sliding push-pull type implant-adjacent orthodontic appliance is used. By installing a main block on the implant, a sliding bar is connected to the adjacent tooth using a rubber chain. Controllable traction force is applied to adjust the position of the adjacent tooth and expand the space for crown restoration.
It enables rapid, low-cost, and non-invasive adjustment of adjacent tooth positions, expands restorative space, reduces the feeling of foreign objects in the mouth, lowers the risk of oral diseases, and reduces dependence on orthodontic skills.
Smart Images
Figure CN121549942A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of orthodontic appliances, specifically a sliding push-pull type implant-adjacent orthodontic device. Background Technology
[0002] Dental implantation has become one of the core treatment methods in the field of prosthodontics, and its clinical application rate continues to rise. However, after addressing the key issue of insufficient bone volume during implantation, the prominent challenge in clinical practice remains insufficient space for implant restoration due to tooth tilt. This problem mainly stems from the fact that, without timely and effective intervention after tooth loss, adjacent natural teeth or prostheses will gradually shift and tilt towards the side of the missing tooth, thereby encroaching on the originally reserved space for crown restoration and greatly hindering subsequent implant restoration. Current industry solutions to this clinical challenge have certain limitations: First, while conventional orthodontic treatment before implant restoration can improve the restoration space from the root, this approach is time-consuming, expensive, and requires bonding orthodontic brackets around the implantation site and even to the entire tooth surface. This not only demands high orthodontic skills from the dentist but also significantly increases the patient's oral discomfort, resulting in a poor treatment experience that most patients find unacceptable. Second, widening the gap by grinding down adjacent teeth can cause irreversible damage to the tooth structure, disrupting the natural integrity of the teeth. Furthermore, due to limitations in the tooth structure itself, the effective restoration space provided is very limited and cannot meet the needs of clinical implantation. Third, forcibly placing a crown to restore the edentulous space without effectively addressing the restoration space can lead to a significant gap between the crown and the mesial and distal adjacent teeth. This gap easily becomes a dead zone for food impaction, potentially causing oral diseases such as gingivitis and periodontitis. Summary of the Invention
[0003] The purpose of this invention is to provide a sliding push-pull type orthodontic device for adjacent teeth. This invention uses a sliding rod structure to stably push tilted adjacent teeth, adjust their position, and provide the space required for crown restoration.
[0004] The technical solution of the present invention: a sliding push-pull type implant-adjacent orthodontic device, comprising a main body block disposed on the implant; the main body block has a set of symmetrically arranged limiting grooves, a fixed traction part is provided in the limiting groove, a slidable sliding rod is provided in the limiting groove, one end of the sliding rod has a sliding traction part, a rubber chain is connected between the sliding traction part and the fixed traction part, and the other end of the sliding rod abuts against the adjacent tooth; a locking groove is provided on one side of the limiting groove, and a lock for locking the sliding rod is provided in the locking groove.
[0005] In the aforementioned sliding push-pull type implant-adjacent orthodontic device, the main body block is provided with a through hole, and a central screw connected to the implant is provided in the through hole.
[0006] In the aforementioned sliding push-pull type implant adjacent tooth orthodontic device, the fixed traction part includes a horizontal plate on the inner wall of the limiting groove, and a fixed hook is provided on the horizontal plate. One end of the rubber chain is sleeved on the fixed hook.
[0007] In the aforementioned sliding push-pull type implant adjacent tooth orthodontic device, the sliding traction part is a traction hook set at one end of the sliding rod.
[0008] In the aforementioned sliding push-pull type implant adjacent tooth orthodontic device, the other end of the sliding rod has an extension rod, the end of the extension rod has a connecting rod, and one end of the connecting rod has an abutment plate that abuts against the adjacent tooth.
[0009] In the aforementioned sliding push-pull type implant adjacent tooth orthodontic device, the connection between the extension rod and the connecting rod has a transition arc.
[0010] In the aforementioned sliding push-pull type implant adjacent tooth orthodontic device, the thickness of the contact plate ranges from 0.3 mm to 0.5 mm.
[0011] Compared with the prior art, the advantages of the present invention are: 1. In this invention, the main body block is installed on the implant, the lock is released, the sliding rod is unlocked, and a rubber chain is connected between the fixed traction part and the sliding traction part. One end of the sliding rod abuts against the adjacent tooth. The elastic tension of the rubber chain applies a continuous and controllable traction force, which can be precisely applied to the tilted adjacent tooth, so as to realize the orientation adjustment of the position of the adjacent teeth on both sides towards the mesial and distal sides, and expand the crown space required for implant restoration.
[0012] 2. The main body block is installed on the implant using the central screw, which facilitates the assembly and disassembly of the main body block.
[0013] 3. The locking groove is equipped with a sliding buckle. Due to the presence of the rubber chain, the sliding rod will slide towards the adjacent tooth side. In order to lock the sliding rod, the buckle moves towards the sliding rod until the buckle moves to the surface of the sliding rod. The traction hook abuts against one side of the buckle, thereby restricting the displacement of the sliding rod. This invention can achieve traction on both sides or on one side, and lock the unused sliding rod to prevent the sliding rod from touching the adjacent teeth and causing discomfort to the patient. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram illustrating an application scenario of the present invention; Figure 3 This is a schematic diagram of the fixed traction unit; Figure 4 This is a schematic diagram of the latch; Figure 5This is a schematic diagram showing the direction of force applied to the sliding rod; Figure 6 This is a schematic diagram of a ligation wire; Figure 7 This is a schematic diagram of the cross-section of the sliding rod.
[0015] The markings in the attached diagram are as follows: 1-Main body block, 2-Fixed traction part, 3-Sliding rod, 4-Sliding traction part, 5-Rubber chain, 6-Lock, 7-Through hole, 8-Central screw, 9-Horizontal plate, 10-Fixed hook, 11-Extension rod, 12-Connecting rod, 13-Abutting plate, 14-Transition arc, 19-Locking groove, 26-Limiting groove, 27-Tied wire, 28-Base. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.
[0017] Example: A sliding push-pull type implant-adjacent orthodontic appliance, including a main body block 1 mounted on the implant, as shown in the attached figure. Figure 1 As shown; in the prior art, dental implants mainly include a crown, an abutment, and an implant. The main body block 1 and the abutment 28 of this invention are an integral structure. The healing abutment portion of the device can be manufactured according to different implant brands to meet clinical needs. The main body block 1 has a through hole 7, within which a central screw 8 connects to the implant. During crown restoration, the implant is placed at the crown site, and the main body block is placed on the implant. The end of the abutment mates with the implant. After proper engagement, the central screw passes through the main body block and connects to the implant, facilitating easy assembly and disassembly of the main body block. This through hole is a countersunk hole structure, allowing the head of the central screw to enter the countersunk portion of the hole, preventing the head of the central screw from protruding above the surface of the main body block. Furthermore, the main body block 1 is a non-implantable instrument that can be recycled, reducing medical costs and increasing patient acceptance. The main body block 1 has a set of symmetrically arranged limiting grooves 26, within which a fixing traction part 2 is located. (See attached diagram) Figure 3 As shown, a slidable sliding rod 3 is installed in the limiting groove 26. One end of the sliding rod 3 has a sliding traction part 4, which is a traction hook provided at one end of the sliding rod 3. A rubber chain 5 is connected between the sliding traction part 4 and the fixed traction part 2. The elastic rubber chain applies the orthodontic force required to move the teeth. The other end of the sliding rod 3 abuts against the adjacent teeth. A locking groove 19 is provided on one side of the limiting groove 26. A latch 6 for locking the sliding rod 3 is provided in the locking groove 19. Figure 4 As shown in the attached diagram. The limiting groove can limit the linear sliding of the sliding rod. The limiting groove has a T-shaped structure. Figure 7As shown, the sliding rod has ribs on both sides, which are embedded in the side grooves on both sides of the bottom of the limiting groove to achieve stable limiting of the sliding rod. When the rubber chain is set, the end of the sliding rod is not easy to tilt upward. The rubber chain is a conventional technique in the field of orthodontics. The specific structure will not be described in detail here. The rubber chain has a variety of elastic coefficients. The appropriate elastic coefficient of the rubber chain is selected according to the degree of inclination of the adjacent teeth. If the adjacent teeth are seriously incised, a high elastic coefficient rubber chain can be selected to provide stronger traction; for slightly incised adjacent teeth, a low elastic coefficient rubber chain is selected. The rubber chain can also be replaced by orthodontic ligature wire 27 between the fixed traction part and the sliding traction part, as shown in the attached figure. Figure 6 As shown, the fixed traction hook and sliding traction part are rigidly ligated according to the size of the edentulous space, which can act as a space maintainer. This invention can effectively reduce the dependence on orthodontists and orthodontic techniques, making it easier for general practitioners and implant specialists to perform orthodontic treatment on patients.
[0018] The fixed traction part 2 includes a horizontal plate 9 on the inner wall of a limiting groove 26. The horizontal plate is set in the limiting groove and can limit the sliding rod, allowing it to move laterally in a straight line. A fixing hook 10 is installed on the horizontal plate 9, and one end of the rubber chain 5 is sleeved on the fixing hook 10. Both the traction hook and the fixing hook are curved hook structures, and the inner side of the hook body is provided with anti-slip texture. The loop at the end of the rubber chain can be stably sleeved on the traction hook and the fixing hook. In the dental field, the position of teeth is usually described as mesial and distal. With the facial midline as the reference, the human face is divided into two symmetrical parts, which pass through the contact point of the maxillary and mandibular central incisors (front teeth). If the adjacent tooth on the side next to the missing tooth is closer to the facial midline, it is called the mesial side; if the adjacent tooth on the other side is farther from the facial midline, it is called the distal side. Specific application scenarios of this invention are shown in the appendix. Figure 2 As shown. Depending on the actual tilt of the adjacent teeth, unidirectional or bidirectional traction is selected. The other end of the sliding rod 3 has an extension rod 11, and the end of the extension rod 11 has a connecting rod 12. One end of the connecting rod 12 has an abutment plate 13 that abuts against the adjacent teeth. The thickness of the abutment plate 13 ranges from 0.3 mm to 0.5 mm, generally using a thickness of 0.4 mm. The abutment plate is made of medical-grade stainless steel, which has a certain degree of toughness and can bend and adjust itself according to the surface condition of the adjacent teeth. The surface of the abutment plate 13 that contacts the adjacent teeth is provided with metal anti-slip particles. The connection between the extension rod 11 and the connecting rod 12 has a transition arc 14, which avoids sharp right-angle edges from causing damage to the patient's oral cavity. After installing a rubber chain between the fixed and sliding traction sections, the elastic force applied by the sliding bar to the adjacent teeth is a light orthodontic force. The direction of force application and the reaction direction of the thrust generated by the sliding bars on both sides are consistent with the direction of the implant insertion torque. There is no need to worry about the implant stability being affected, and this can provide additional stabilizing force for the implant, as detailed in the attached figure. Figure 5As shown.
[0019] The bottom of the lock groove has lateral grooves on both sides, and the two sides of the latch also have side strips that cooperate with the lateral grooves. This structure enables good limiting of the latch. The lateral grooves are not connected to the limiting grooves. After the latch moves inward to the locked position, the side strips will abut against the end of the lateral groove. The lock groove is equipped with a sliding latch, as shown in the attached figure. Figure 4 As shown, due to the presence of the rubber chain, the sliding bar will slide towards the adjacent tooth side. To lock the sliding bar, the latch moves towards the sliding bar until it reaches the surface of the sliding bar, where the traction hook abuts against one side of the latch, thus restricting the movement of the sliding bar. This invention can achieve traction on both sides or on one side, and locks unused sliding bars to prevent them from touching adjacent teeth and causing discomfort to the patient.
[0020] The working principle of this invention is as follows: A central screw is inserted through the through hole in the center of the main block to securely connect the device to the implant (with the abutment), making the main block a stable force-applying base. A rubber chain 5 with an elastic coefficient matching the inclination of the adjacent teeth is selected, with one end sleeved on the fixing hook 10 of the fixed traction part 2 and the other end hooked on the traction hook of the sliding traction part 4, completing the assembly of the elastic traction structure. At this time, the sliding rod is in a locked state, with the latch placed on the surface of the sliding rod, and the side of the latch abutting against the traction hook of the sliding traction part. Single-sided or double-sided sliding can be selected. The lever pushes the latch to move outward, and the latch contacts and restricts the movement of the sliding lever. The contact plate 13 at the end of the sliding lever 3 evenly transmits the traction force to the tilted adjacent teeth. When both the mesial and distal adjacent teeth tilt toward the edentulous space, the sliding levers 3 on both sides are unlocked and the rubber chain 5 is installed. The traction force on both sides pushes the mesial adjacent teeth to the mesial direction and the distal adjacent teeth to the distal direction, respectively, expanding the restoration space in both directions. When only one adjacent tooth tilts, the sliding lever 3 on the other side is locked, and the traction force is applied only to the target adjacent tooth to avoid the non-target sliding lever 3 touching the adjacent tooth and causing discomfort.
Claims
1. A sliding push-pull type implant-adjacent orthodontic device, comprising a main body block (1) disposed on the implant; characterized in that: The main block (1) has a set of symmetrically arranged limiting grooves (26). The limiting grooves (26) are provided with a fixed traction part (2) and a sliding rod (3) is provided in the limiting grooves (26). One end of the sliding rod (3) has a sliding traction part (4). A rubber chain (5) is connected between the sliding traction part (4) and the fixed traction part (2). The other end of the sliding rod (3) abuts against the adjacent tooth. A locking groove (19) is provided on one side of the limiting grooves (26). A lock (6) for locking the sliding rod (3) is provided in the locking groove (19).
2. The sliding push-pull type implant-adjacent orthodontic device according to claim 1, characterized in that: The main block (1) is provided with a through hole (7), and a central screw (8) connected to the implant is provided in the through hole (7).
3. The sliding push-pull type implant-adjacent orthodontic device according to claim 1, characterized in that: The fixed traction part (2) includes a horizontal plate (9) on the inner wall of the limiting groove (26), and a fixed hook (10) is provided on the horizontal plate (9). One end of the rubber chain (5) is sleeved on the fixed hook (10).
4. The sliding push-pull type implant-adjacent orthodontic device according to claim 1, characterized in that: The sliding traction part (4) is a traction hook set at one end of the sliding rod (3).
5. The sliding push-pull type implant-adjacent orthodontic device according to claim 4, characterized in that: The other end of the sliding rod (3) has an extension rod (11), the end of the extension rod (11) has a connecting rod (12), and one end of the connecting rod (12) has an abutment plate (13) that abuts against the adjacent tooth.
6. The sliding push-pull type implant-adjacent orthodontic device according to claim 5, characterized in that: The connection between the extension rod (11) and the connecting rod (12) has a transition arc (14).
7. The sliding push-pull type implant-adjacent orthodontic device according to claim 5, characterized in that: The thickness of the contact plate (13) ranges from 0.3 mm to 0.5 mm.