CN-121987366-A - Invisible mandibular anterior appliance

CN121987366ACN 121987366 ACN121987366 ACN 121987366ACN-121987366-A

Abstract

The invention provides an invisible mandibular anterior appliance which comprises an upper jaw appliance module, a mandibular appliance module and an anterior force adjusting structure which are symmetrically arranged in the bilateral posterior dental area of the mandibular anterior appliance, wherein the anterior force applied to mandible by the mandibular anterior appliance is changed, an anterior force sensor is arranged in the anterior force adjusting structure and used for detecting the anterior force applied to mandible by the anterior force adjusting structure, a tooth surface force sensor array is distributed on the tissue surface of the invisible mandibular anterior appliance and used for detecting orthodontic force of each tooth surface, a perioral muscle pressure sensor is used for detecting pressure of a mouth Zhou Jiqun, and a wireless transmission structure is electrically connected with the anterior force sensor, the tooth surface force sensor array and the perioral muscle pressure sensor and used for being in wireless communication connection with external equipment and transmitting detection results of the anterior force, the orthodontic force and the pressure of a mouth Zhou Jiqun.

Inventors

DING WANGHUI
SHEN JIE
WU MENGJIE
ZHANG MENGHAN
LUO YUXUAN

Assignees

浙江大学医学院附属口腔医院

Dates

Publication Date: 20260508
Application Date: 20260122

Claims (9)

1. An invisible mandibular anterior appliance comprises an maxillary appliance module and a mandibular appliance module, and is characterized by further comprising: The anterior force adjusting structure is symmetrically arranged on the bilateral posterior dental area of the mandibular anterior appliance and positioned between the maxillary appliance module and the mandibular appliance module, and is used for changing the anterior force applied to the mandible by the mandibular anterior appliance; A preamble sensor provided in the preamble force adjustment structure for detecting a preamble force applied to a mandible by the preamble force adjustment structure; The tooth surface force sensor array is distributed on the tissue surface of the invisible mandibular anterior appliance and is used for detecting orthodontic force applied to each tooth surface by the invisible mandibular anterior appliance; a perioral pressure sensor disposed at one or more functional areas of the invisible mandibular anterior appliance for detecting pressure of the mouth Zhou Jiqun; And the wireless transmission structure is respectively and electrically connected with the leading force sensor, the tooth surface force sensor array and the perioral muscle pressure sensor and is used for being in wireless communication connection with external equipment and transmitting detection results of the leading force, the orthodontic force and the pressure of the mouth Zhou Jiqun.
2. The invisible mandibular anterior appliance of claim 1, wherein the anterior force adjustment structure comprises: The rotatable threaded screw rod is axially arranged in the upper jaw appliance module; The adjusting knob is connected with one end part of the threaded screw rod and is positioned on the cheek side or the palate side of the maxillary appliance module; the screw rod is meshed with the screw rod, and the screw rod is fixedly arranged in the mandibular appliance module; Wherein in response to an operation applied to the adjustment knob, a rotational motion of the threaded screw is converted into a linear motion of the nut along the threaded screw to create a different lead force.
3. The invisible mandibular anterior appliance of claim 2, wherein the anterior force sensor comprises a piezoresistive force sensor or a capacitive force sensor; the front force sensor is arranged between the end part of the threaded screw rod and the bearing seat of the mandibular appliance module.
4. The invisible mandibular anterior appliance of claim 1, wherein the anterior force adjustment structure comprises: A first magnetic component disposed within the maxillary appliance module; A second magnetic component disposed within the mandibular appliance module; the micro-distance adjusting unit is arranged in the maxillary appliance module and used for adjusting a gap between the first magnetic force component and the second magnetic force component; Wherein a pole pitch between the first magnetic force part and the second magnetic force part is changed in response to an operation applied on the macro adjustment unit to form different leading forces.
5. The invisible mandibular anterior appliance of claim 4, wherein one of the first magnetic component or the second magnetic component is an electromagnet; wherein different leader forces are formed in response to a change in the magnitude of the input current to the electromagnet.
6. The invisible mandibular anterior appliance of claim 4, wherein the anterior force sensor comprises a piezoresistive force sensor or a capacitive force sensor; the front force sensor is arranged at a stress interface of the mandibular appliance module corresponding to the first magnetic force component.
7. The invisible mandibular anterior appliance of claim 1, wherein the tooth surface force sensor array comprises a flexible piezoelectric film network of a plurality of micro sensing units; The area range of the sensing units is 1mm2 to 4mm2, the number of the sensing units is 40 to 60, and the sensing units are distributed and attached to the areas, closely contacted with the labial surfaces, lingual surfaces and incisal/occlusal surfaces of teeth, of the inner side of the invisible mandibular anterior appliance to detect orthodontic forces applied by the surfaces of the teeth and generate corresponding spatial distribution cloud patterns.
8. The invisible mandibular anterior appliance of claim 1, wherein the perioral muscle pressure sensor comprises a transparent piezoelectric film sensor; The functional area comprises an area corresponding to orbicularis stomatitis in the middle of a lip side base of the upper jaw appliance and an area corresponding to cheek body projection of two side cheek side bases; Wherein, the perioral muscle pressure sensor is used for quantitatively monitoring resting lip pressure, functional swallowing pressure and muscle strength change during speech.
9. The invisible mandibular anterior appliance of claim 1, wherein the wireless transmission structure comprises: the signal conditioning circuit is used for processing the original acquisition signals of the front force sensor, the tooth surface force sensor array and the perioral muscle pressure sensor to form corresponding sensor signals; the microcontroller is connected with the signal conditioning circuit and is used for receiving the sensor signal output by the signal conditioning circuit; The wireless transmission circuit is electrically connected with the microcontroller and used for outputting the sensor signal to external equipment; A display component electrically connected to the microcontroller for displaying at least a portion of the sensor signal; wherein the display component is arranged in the labial base of the anterior segment of the maxillary correction module or in the anterior part of the palate dome.

Description

Invisible mandibular anterior appliance Technical Field The invention relates to the technical field of orthodontic equipment, in particular to an invisible mandibular front appliance. Background Mandibular retroversion is a common maxillofacial developmental problem and functional correction is one of its mainstream treatments. The traditional mandibular anterior appliance mostly adopts mechanical adjusting structures, such as a screw rod, a spring and the like, and the mechanical structures realize the adjustment of the anterior quantity by manually screwing or replacing elements, so that the mandibular anterior appliance is complex in operation and difficult to directly carry out in the mouth. In the practical application process, because the traditional appliances lack mechanical feedback capability, doctors cannot know the force application size, distribution and biomechanical response of the mouth Zhou Jiqun, and can only estimate by experience, so that the temporomandibular joint disorder and teeth Zhou Sunshang caused by excessive correction force can be easily caused, or the correction target can not be achieved due to insufficient correction force. To address this problem, some prior art appliances began to incorporate force sensing elements, such as simple force measuring devices based on strain gages. However, the detection modes and the detection results of the sensors of the correction devices are relatively simple, and the requirements of clinical accurate diagnosis and remote monitoring are difficult to meet. Disclosure of Invention The invention provides an invisible mandibular anterior appliance, which aims to solve the technical problem that the existing appliance cannot meet the requirements of clinical accurate diagnosis and remote monitoring. In a first aspect, the embodiment of the invention provides an invisible mandibular anterior appliance, which comprises an upper jaw appliance module, a mandibular appliance module and a functional module, wherein the anterior force adjusting structure is symmetrically arranged on the two side rear tooth areas of the mandibular anterior appliance and positioned between the upper jaw appliance module and the mandibular appliance module, the anterior force adjusting structure is used for changing the anterior force applied to mandible by the mandibular anterior appliance module, the anterior force sensor is arranged in the anterior force adjusting structure and used for detecting the anterior force applied to mandible by the anterior force adjusting structure, the tooth surface force sensor array is distributed on the tissue surface of the invisible mandibular anterior appliance and used for detecting orthodontic force applied by the invisible mandibular anterior appliance to each tooth surface, the perioral muscle pressure sensor is arranged on one or more functional areas of the mandibular anterior appliance, the perioral muscle pressure sensor is used for detecting the orthodontics force applied by the invisible mandibular anterior appliance, and the wireless communication is used for transmitting the result of the wireless communication with the wireless communication device of the anterior force sensor and the wireless communication device 3962. Optionally, the lead force adjustment structure comprises a rotatable threaded lead screw axially disposed within the maxillary appliance module, an adjustment knob connected to one of the ends of the threaded lead screw on either the buccal or palatal side of the maxillary appliance module, a nut engaged with the threaded lead screw, the nut fixedly disposed within the mandibular appliance module, wherein rotational movement of the threaded lead screw is translated into linear movement of the nut along the threaded lead screw in response to an applied operation on the adjustment knob to create a different lead force. Optionally, the lead force sensor comprises a piezoresistive force sensor or a capacitive force sensor, wherein the lead force sensor is arranged between the end part of the threaded screw rod and the receiving seat of the mandibular appliance module. Optionally, the guiding force adjusting structure comprises a first magnetic force part, a second magnetic force part and a macro adjusting unit, wherein the first magnetic force part is arranged in the upper jaw appliance module, the second magnetic force part is arranged in the lower jaw appliance module, the macro adjusting unit is arranged in the upper jaw appliance module and used for adjusting a gap between the first magnetic force part and the second magnetic force part, and the magnetic pole distance between the first magnetic force part and the second magnetic force part is changed to form different guiding forces in response to an operation applied to the macro adjusting unit. Optionally, one of the first magnetic force component or the second magnetic force component is an electromagnet, wherein different leading forces are formed