An orthodontic bone arch expander
Patent Information
- Application Number
- DE202025100222
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2025-03-06
- Estimated Expiration
- 2035-01-31
Smart Images

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Abstract
Description
Technical area
[0001] The utility model relates to the technical field of oral orthodontic correction devices, in particular to an orthodontic bone arch expander. Background technology
[0002] An orthodontic appliance is a device used to treat misaligned teeth or orthodontic alignments. It can generate force, or the functional force of the masticatory and perioral muscles can change the deformed frontal bone and misaligned teeth through the periodontal supporting tissues via the appliance, in order to facilitate normal growth and development of the dentofacial area.
[0003] Currently, most clinical orthodontic treatments utilize arch expanders. Arch expanders are devices used to widen the dental arch. Their primary function is to adjust the size of the arch so that the teeth have a suitable position to erupt and then erupt gradually. This can help avoid tooth extractions.
[0004] Existing expanders cannot accurately locate the position of the nails during application, which poses an implantation risk and significantly reduces the expansion effect. Content of the utility model
[0005] To solve the aforementioned existing problems, the utility model provides an orthodontic bone arch expander. The utility model is implemented through the following technical solutions.
[0006] An orthodontic bone arch expander comprising two symmetrically arranged bases.
[0007] The base is provided with numerous screw holes on the front, back, or both sides and is connected to a palatal side plate in the form of a support rod. The palatal side plate has a semicircular structure and is symmetrically connected to the two outer sides of the screw holes.
[0008] The two symmetrically arranged bases are each connected to each other by a screw and two connecting rods, with the screw located in the middle of the two bases and the connecting rods being located at the upper and lower ends of the two bases.
[0009] In addition, there are 2-4 screw holes of different diameters arranged on the front, back or both sides of the base.
[0010] Furthermore, the screw holes located on the outside of the upper and lower ends of the base are each connected to the palatal side plate via support rods.
[0011] The beneficial effects of this utility model are as follows: By combining it with computer technology, specifically by using computer technology to overlay the patient's working model with a CT scan, the patient's oral cavity can be visualized more intuitively. The dentist and orthodontist determine the number (2-6), position, and length of the nails according to the thickness of the bone plate and the condition of the tooth root. A precise clinical assessment is performed, the entire digital stent is designed using computer software, and the stent is printed or cast using this software, resulting in a more accurate clinical evaluation and precise computer technology. This leads to more accurate nail placement, safer implantation, increased arch extension effectiveness, and a better and faster clinical outcome. Description with drawings Fig.This is a schematic structural diagram of an orthodontic bone arch expander of the utility model. The specific embodiment
[0012] To clarify the purpose, technical solution, and advantages of the embodiments of the utility model, the technical solutions in these embodiments are described clearly and completely below in conjunction with the accompanying drawings. It is evident that the described embodiments represent some of the embodiments of the utility model, not all of them. The components of the embodiments of the utility model, which are typically described and shown in the drawings contained herein, can be arranged and designed in a multitude of different configurations.
[0013] When describing the embodiments of the utility model, it should be noted that if the orientation or positional relationship indicated by the terms "centered," "top," "bottom," "left," "right," "vertical," "horizontal," "inside," "outside," and the like is based on the orientation or positional relationship shown in the accompanying drawing or on the orientation or positional relationship that is customarily used during the application of the utility model product, this is done solely for the convenience and simplification of the description of the utility model. It is not intended to suggest or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be interpreted as restricting the utility model.Furthermore, the terms "first", "second", "third", etc. are used only to distinguish descriptions and should not be interpreted as indicating or implying any relative meaning.
[0014] Furthermore, the presence of terms like "horizontal," "vertical," "overhang," etc., does not mean that the part must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" simply means that its orientation is more horizontal than that of "vertical"; it does not mean that the structure must be completely horizontal, but that it can be slightly inclined.
[0015] In the description of the embodiments of the utility model, "majority" means at least two.
[0016] When describing the embodiments of the utility model, it should also be noted that the terms "adjustment," "installation," "connecting," and "connecting" are to be understood in a broad sense unless otherwise clearly specified and limited. For example, they may refer to a permanent connection, a detachable connection, or an integral connection. They may be mechanical or electrical connections. They may be direct connections, intermediaries, or internal connections between two components. The specific meanings of the aforementioned terms in the utility model are understandable to the person skilled in the art, depending on the specific circumstances.
[0017] Design: An orthodontic bone arch expander comprises two symmetrically arranged bases 1.
[0018] On the front and back, or on both sides, of the base 1, 2-4 screw holes 2 of varying diameters can be arranged, each connected to palatal side plates 4 in the form of support rods 3. The palatal side plates 4 are semicircular in structure and are connected symmetrically. On both sides of the screw hole 2, more precisely: the screw holes 2 located on the top and bottom of the base 1, are each connected to the palatal side plate 4 via the support rods 3.
[0019] The two symmetrically arranged bases 1 are connected by a screw 5 and two connecting rods 6, respectively. The screw 5 is located in the middle of the two bases, and the connecting rods 6 are located at the top and bottom ends of the two bases.
[0020] In clinical applications, combining computer technology—that is, using computer technology to overlay the patient's working model with a CT scan—allows for a more intuitive visualization of the patient's oral cavity. The dentist and orthodontist determine the number (2-6), position, and length of the nails according to the thickness of the bone plate and the condition of the tooth root. A precise clinical assessment is performed, the entire digital stent is designed using computer software, and the stent is then printed or cast, resulting in a more accurate clinical evaluation and precise computer technology. This leads to more accurate nail placement, safer implantation, increased arch extension effect, and a better and faster clinical outcome.
[0021] The utility model and its embodiments have been described above. This description is not limiting. What is shown in the drawings is only one embodiment of the utility model, and the actual structure is not limited to it. In short, if a person skilled in the art is inspired by it and, without deviating from the creative purpose of the utility model, can design a similar structural method and embodiment to the technical solution without any creative effort, they all fall under the protection of the utility model.
Claims
[1] An orthodontic bone arch expander comprising two symmetrically arranged bases, characterized by , that: The base is provided with a plurality of screw holes on the front, back, or both sides and connected to a palatal side plate in the form of a support rod; the palatal side plate has a semicircular structure and is symmetrically connected to the two outer sides of the screw hole; The two symmetrically arranged bases are each connected to each other by a screw and two connecting rods, with the screw located in the middle of the two bases and the connecting rods located at the top and bottom of the two bases. [2] An orthodontic bone arch expander according to legal claim 1, characterized bythat 2-4 screw holes of different diameters are arranged on the front, back or both sides of the base. [3] An orthodontic bone arch expander according to legal claim 1, characterized by that the screw holes located on the outside of the upper end and the lower end of the base are each connected to the palatal side plate via support rods.