Devices and methods for deprogramming orofacial muscles and reconstructing non-centric occlusion.

Abstract

This application relates to a device and method for deprogramming the maxillary muscles and reconstructing non-centric occlusion guidance. The method includes: applying thermoplastic resin to the patient's maxillary anterior teeth region to form an occlusal area that uniformly contacts the mandibular anterior teeth; applying thermoplastic resin to the occlusal area to form a guide portion; guiding the patient's upper and lower anterior teeth to perform leftward, rightward, and protruding non-centric occlusal movements to form a dynamic occlusal guide line in the guide portion. The above method molds thermoplastic resin to form a maxillary crown and creates an occlusal area that uniformly contacts the mandibular anterior teeth, causing the posterior teeth to disengage during non-centric occlusion, reducing the burden on the masticatory muscles and temporomandibular joint, achieving deprogramming of the maxillary muscles, and guiding the anterior teeth to establish a normal non-centric occlusion through the corresponding guide line. Compared with traditional dynamic occlusal guidance methods, this method is simple in structure, convenient to use, and highly accurate, and can be directly applied to the clinical examination and treatment of patients with temporomandibular joint disorders.

Description

Technical Field

[0001] This application relates to the field of oral medicine technology, and in particular to a device and method for deprogramming the maxillofacial muscles and reconstructing non-centric occlusion guidance. Background Technology

[0002] Temporomandibular joint disorders (TMD) are a group of skeletal and neuromuscular diseases involving the temporomandibular joint, masticatory muscles, and all related tissues. They are relatively common, with reported incidence rates as high as 60% of the population. Most patients present with mild clinical symptoms such as clicking or popping in the joint area, while approximately 3.6%-7% experience more severe symptoms (masculine muscle and joint pain, limited mouth opening, etc.) requiring treatment. However, due to the complex etiology, significant individual variability in clinical presentation, limited diagnostic methods, controversial treatment approaches, and the need for multidisciplinary treatment in most cases, TMD often presents as a challenging problem for clinicians. Treatment of TMD primarily involves adjusting the abnormal relationships between the upper and lower jaws, between the upper and lower teeth, between the teeth and jawbone, and between related neuromuscular systems. The ultimate goal of treatment is to achieve balance, stability, and aesthetics in the stomatognathic system.

[0003] The mandible, as the only movable bone in the head and face, provides the anatomical basis for vital physiological functions such as chewing, swallowing, and speech through its dynamic movements. Mandibular occlusal movements can be divided into centric occlusion and non-centric occlusion. Centripetal occlusion, also known as maximum cusp intersection, represents the most extensive contact between the cusps and fossae of the upper and lower jaws. It is the starting and ending point of mandibular occlusal function and the most important static positional relationship between the upper and lower jaws. A stable centric occlusion is also the target position for tooth occlusion after orthodontic treatment. Besides centric occlusion, non-centric occlusion refers to the dynamic occlusal relationship of the mandible, including protruding occlusion and lateral occlusion. Protruding occlusion is primarily guided by the incisors, while lateral occlusion is mainly guided by the canines, also known as canine protection. Good static and dynamic occlusion are crucial factors for the balance and stability of the maxillofacial neuromuscular system and the temporomandibular joint. However, in certain special circumstances, the dynamic movement of the mandible can be significantly affected. Factors such as wear of the canines, premature contact of the posterior teeth during movement, tooth misalignment, and temporomandibular joint disorder can all lead to abnormalities in dynamic mandibular movement, which in turn can cause abnormalities in the maxillofacial masticatory muscles and temporomandibular joint, resulting in symptoms related to temporomandibular joint disorder such as muscle or temporomandibular joint pain, headache, and joint clicking, and may even affect the patient's overall physical and mental health.

[0004] Oral and maxillofacial masticatory muscle dysfunction is also one of the main symptoms of temporomandibular joint disorder, with patients experiencing various clinical problems such as masticatory muscle spasms and pain. Its symptoms are not limited to the oral and maxillofacial system; in certain situations, compensatory actions by the nervous and muscular systems throughout the body can cause discomfort in the head, face, neck, shoulders, lower back, and even the whole body. Doctors can use specific devices to separate the upper and lower jaw teeth during occlusion, relax the masticatory muscles, and achieve deprogrammed control of the oral and maxillofacial muscles, thereby improving symptoms in the oral and maxillofacial system and throughout the body.

[0005] Currently, achieving deprogrammed masticatory muscles and reconstructing ideal dynamic occlusal guidance is the primary choice for treating masticatory muscle disorders and temporomandibular joint-related diseases caused by occlusal disorders. However, commonly used methods, such as occlusal splints, require the use of tools like frames for facebow transfer, frame placement, and fabrication, resulting in numerous problems including device complexity, time and effort consumption, and low accuracy. Some devices, such as the Luciajig deprogrammed masticatory muscle device, have limited functionality and cannot achieve dynamic occlusal guidance. Summary of the Invention

[0006] Therefore, it is necessary to provide a device and method for deprogramming and reconstructing non-centric occlusion by addressing the above-mentioned technical problems. This device and method should be simple in structure, easy to use, highly accurate, and directly applicable to clinical treatment to reduce the burden on the masticatory muscles and temporomandibular joint.

[0007] In a first aspect, this application provides a device for deprogramming and reconstructing non-centric occlusion guidance of the maxillary muscles, comprising:

[0008] The upper tooth crown is fixed to the upper anterior teeth to disengage the posterior teeth, and the upper tooth crown has an occlusal area;

[0009] The guide section is located in the patient's anterior teeth area and has a guide line to guide the anterior teeth to establish normal dynamic occlusion;

[0010] The upper tooth crown and guide are both made of thermoplastic resin and form a plane in the occlusal area that makes uniform contact with the lower anterior teeth.

[0011] In one embodiment, the upper tooth crown includes a resin crown, a retention element, a connector, and a planar guide plate. The resin crown covers the buccal and lingual sides of the premolars, the retention element is installed on the upper anterior teeth, and the planar guide plate is fixedly connected to the resin crown and the retention element through the connector. The occlusal area is located on the planar guide plate.

[0012] Secondly, this application provides a method for deprogramming and reconstructing non-centric occlusal guidance of the maxillofacial muscles, the method comprising:

[0013] A thermoplastic resin crown is made of the patient's maxillary anterior teeth to form an occlusal area that makes uniform contact with the mandibular anterior teeth;

[0014] A guide portion is formed by applying thermoplastic resin to the aforementioned occlusal area;

[0015] Guide the patient to perform left-side, right-side, and protruding non-centric biting movements of the upper and lower anterior teeth to form a dynamic occlusal guide line in the guide area.

[0016] In one embodiment, the step of applying a thermoplastic resin crown to the patient's maxillary anterior teeth region to form an occlusal region that uniformly contacts the mandibular anterior teeth further includes:

[0017] Fabricate flat guide plates, resin crown sleeves, and matching adjustable connectors and retaining components;

[0018] An adjustable connector and a retaining element are provided between the incisors and lateral incisors for retaining the planar guide plate.

[0019] In one embodiment, the application of thermoplastic resin to create an upper tooth crown in the patient's maxillary anterior tooth region to form an occlusal region that uniformly contacts the mandibular anterior teeth includes:

[0020] A pre-fabricated thermoplastic resin crown is placed in the premolar region to cover the buccal and lingual sides;

[0021] The flat guide plate is connected to the resin crown sleeve via a bendable and adjustable connector;

[0022] Adjust the position of the planar guide plate according to the position of the premolars and the occlusal contact state of the lower anterior teeth, so that an occlusal area with uniform contact with the lower anterior teeth is formed on the planar guide plate.

[0023] In one embodiment, the step of applying thermoplastic resin to the aforementioned occlusal region to form the guide portion further includes:

[0024] Silicone rubber material is used to connect the premolars to the resin crown in the premolar region;

[0025] Adjust the connector between the maxillary incisors and lateral incisors and add retention elements.

[0026] In one embodiment, guiding the patient's lower anterior teeth to perform leftward, rightward, and protruding movements to form a dynamic occlusal guide line in the guide portion includes:

[0027] After the guiding part is formed, guide the patient to perform forward and lateral biting movements in a short period of time;

[0028] A corresponding dynamic occlusal guideline is formed, and excess thermoplastic resin is removed from the patient's mouth.

[0029] In one embodiment, the step of guiding the patient's upper and lower anterior teeth to perform leftward, rightward, and protruding non-centric biting movements to form a dynamic occlusal guide line in the guide portion, further comprising:

[0030] Use a three-way water gun to rinse or immerse the upper crown in cold water to cool and harden the guide portion.

[0031] The aforementioned device and method for deprogramming the maxillary muscles and reconstructing non-centric occlusion guidance involves molding a thermoplastic resin crown in the patient's upper tooth area. This allows the lower anterior teeth to make uniform contact with the palatal occlusal area during biting, while the posterior teeth disengage, thereby reducing the burden on the masticatory muscles and temporomandibular joint, achieving deprogramming of the maxillary muscles. By reapplying thermoplastic resin, the device guides the patient to move their upper and lower anterior teeth to form a guideline, guiding the anterior teeth to establish normal dynamic occlusion. Compared to traditional dynamic occlusion guidance methods, this method is simple in structure, convenient to use, and highly accurate, reducing the burden on the masticatory muscles and temporomandibular joint, and can be directly applied to clinical treatment. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the device structure for deprogramming and reconstructing non-centric occlusion guidance of the maxillary muscles in one embodiment of this application;

[0033] Figure 2 This is a schematic diagram of the device structure for deprogramming and reconstructing non-centric occlusion guidance of the maxillary muscles in another embodiment of this application;

[0034] Figure 3 This is a flowchart of a method for deprogramming and reconstructing non-centric occlusion guided by orofacial muscle deprogramming in one embodiment of this application;

[0035] Figure 4 This is a flowchart of a method for deprogramming and reconstructing non-centric occlusion guidance of the maxillofacial muscles in another embodiment of this application.

[0036] In the diagram: 100, maxillary crown; 110, resin crown; 120, planar guide plate; 130, connector; 140, retention element; 200, occlusal area; 300, guide section; 310, guide line. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0042] like Figure 1 As shown, in one embodiment, a device for deprogramming and reconstructing non-centric occlusion guidance of the maxillary muscles includes an upper dental crown 100 and a guide portion 300. The upper dental crown 100 is fixed to the upper teeth to disengage the posterior teeth. The upper dental crown 100 has an occlusal region 200 for disengaging the posterior teeth. The guide portion 300 is disposed in the patient's anterior teeth region and has a guide line 310 for guiding the anterior teeth to establish normal dynamic occlusion. Specifically, both the upper dental crown 100 and the guide portion 300 are made of thermoplastic resin and form a plane in the occlusal region 200 that uniformly contacts the mandibular anterior teeth.

[0043] The aforementioned device for deprogramming and reconstructing non-centric occlusion guidance of the maxillary muscles involves molding a maxillary crown 100 using thermoplastic resin in the patient's upper tooth region. This allows the lower anterior teeth to make uniform contact with the palatal occlusal region 200 during biting, while the posterior teeth disengage, thereby reducing the burden on the patient's masticatory muscles and temporomandibular joint, achieving deprogramming of the maxillary muscles. Further application of thermoplastic resin guides the patient's upper and lower anterior teeth movements to form corresponding guide lines 310, guiding the anterior teeth to establish normal dynamic occlusion. Compared to traditional dynamic occlusion guidance devices, this device is simple in structure, convenient to use, highly accurate, and can be directly applied in clinical treatment to reduce the burden on the masticatory muscles and temporomandibular joint.

[0044] It should be noted that the upper dental crown 100 is made of thermoplastic resin with the properties of softening when heated and hardening when cooled. It has high plasticity, can be repeatedly modified multiple times in a short period of time, will not cause chemical reactions, and is harmless to the human body.

[0045] like Figure 2 As shown, in this embodiment, the upper tooth crown 100 includes a resin crown 110, a retention element 140, a connector 130, and a planar guide plate 120. The resin crown 110 covers the buccal and lingual sides of the premolars, the retention element 140 is installed on the upper anterior teeth, and the planar guide plate 120 is fixedly connected to the resin crown 110 and the retention element 140 through the connector 130. The occlusal area 200 is located on the planar guide plate 120.

[0046] Specifically, the groove of the resin crown 110 is wrapped with silicone rubber in the patient's maxillary premolar region. The planar guide plate 120 is connected to the resin crown 110 via an adjustable metal connector. Simultaneously, a metal connector and metal retainer are placed between the central and lateral incisors in the anterior region to increase the stability of the device. By using the prefabricated planar guide plate 120 and the resin crown 110 in the premolar region, clinical operation time can be shortened and treatment efficiency improved.

[0047] like Figure 3 As shown, in one embodiment, a method for deprogramming oromandibular muscles and reconstructing non-centric occlusion guidance includes the following steps:

[0048] Step S110: Apply thermoplastic resin to the patient's maxillary anterior teeth area to make an upper tooth crown, forming an occlusal area that is in uniform contact with the mandibular anterior teeth.

[0049] Specifically, thermoplastic resin is molded in the patient's mouth so that when the patient bites down, the lower anterior teeth can contact the occlusal area, while the posterior teeth are disengaged. This reduces the burden on the masticatory muscles and temporomandibular joint, achieving deprogramming of the oral and maxillary muscles. Thermoplastic resin has strong plasticity, allowing for repeated molding without chemical reactions and posing no harm to the human body. The occlusal area is the plane that makes uniform contact with the lower anterior teeth.

[0050] Step S120: Apply thermoplastic resin to the above-mentioned interlocking area to form a guide portion.

[0051] Specifically, the molded thermoplastic resin is cooled and hardened and fixed in the upper anterior tooth area. A small amount of thermoplastic resin is then applied again to form a guide portion for subsequent processing.

[0052] Step S130: Guide the patient to perform left-side, right-side, and protruding non-centric occlusal movements of the upper and lower anterior teeth to form a dynamic occlusal guide line in the guide area.

[0053] Specifically, since the amount of thermoplastic resin in the guide portion is relatively small and the rate of cooling and hardening is relatively fast, the patient should be guided to move their upper and lower anterior teeth immediately after the thermoplastic resin is applied again to form a corresponding occlusal guide line, which is used to guide the anterior teeth to establish normal dynamic occlusion.

[0054] The aforementioned method for deprogramming the maxillary muscles and reconstructing non-centric occlusion guidance involves using thermoplastic resin to mold a crown onto the upper teeth in the patient's upper dental region. This allows the lower anterior teeth to make uniform contact with the palatal occlusal area during biting, while the posterior teeth disengage, thereby reducing the burden on the masticatory muscles and temporomandibular joint. This achieves deprogramming of the maxillary muscles. By reapplying thermoplastic resin, the patient is guided to move their upper and lower anterior teeth to form a guideline, guiding the anterior teeth to establish normal dynamic occlusion. Compared to traditional dynamic occlusion guidance methods, this method is simple in structure, convenient to use, highly accurate, and can be directly applied in clinical treatment to reduce the burden on the masticatory muscles and temporomandibular joint.

[0055] like Figure 4 As shown, in one embodiment, a method for deprogramming oromandibular muscles and reconstructing non-centric occlusion guidance includes the following steps:

[0056] Step S210: Fabricate the flat guide plate, resin crown sleeve, and matching adjustable connectors and retaining components.

[0057] Specifically, the maxillary planar guide is one of the most commonly used simple functional appliances in clinical orthodontics. It is worn on the maxilla and is used to contact the mandibular anterior teeth during occlusion. By using a prefabricated planar guide, clinical operation time can be shortened and treatment efficiency can be improved.

[0058] Step S220: An adjustable connector and a retaining member are provided between the incisor and the lateral incisor for retaining the planar guide plate.

[0059] Specifically, adjustable-length metal connectors and adjustable-position metal retainers are used to adjust the position of the planar guide plate.

[0060] Step S230: Apply a pre-fabricated resin crown made of thermoplastic resin to the premolar area to cover the buccal and lingual sides.

[0061] Specifically, a prefabricated resin crown or thermoplastic resin molding on-site is used to wrap the premolar area of ​​the upper teeth, providing a stable mounting point for the planar guide plate.

[0062] Step S240: Connect the flat guide plate to the resin crown sleeve using a bendable and adjustable connector.

[0063] Specifically, stainless steel wire is used to connect the flat guide plate and the resin crown sleeve, which facilitates the adjustment of the position of the metal connector and ensures the stability of the flat guide plate as much as possible.

[0064] Step S250: Adjust the position of the planar guide plate according to the position of the premolars and the occlusal contact state of the lower anterior teeth, so that an occlusal area with uniform contact with the lower anterior teeth is formed on the planar guide plate.

[0065] Specifically, the position of this device is adjusted so that when the patient bites down, the lower anterior teeth can contact the occlusal area on the planar guide plate, while the posterior teeth are disengaged. This reduces the burden on the patient's masticatory muscles and temporomandibular joint, achieving deprogramming of the oral and maxillary muscles, and ensuring that the resin crown makes as close contact as possible with the premolars for easy bonding. The occlusal area is a plane that makes uniform contact with the lower anterior teeth.

[0066] Step S260: Apply silicone rubber material to the premolars within the resin crown in the premolar region to connect them.

[0067] Specifically, silicone rubber materials have a short processing time, solidify quickly in the oral cavity, and are more dimensionally stable after solidification, making them suitable for various clinical cases.

[0068] Step S270: Adjust the connector between the maxillary incisors and lateral incisors and add retention elements.

[0069] Specifically, adjust the metal connector between the connecting plane guide plate and the resin crown sleeve, and add a metal retainer on the metal connector to ensure the stability of the plane guide plate as much as possible.

[0070] Step S280: Apply thermoplastic resin to the above-mentioned interlocking area to form a guide portion.

[0071] Specifically, after the molded thermoplastic resin is cooled and hardened and fixed in the upper anterior tooth area, a small amount of thermoplastic resin is applied to the above-mentioned occlusal area to form a guide for subsequent processing.

[0072] Step S290: After the guide portion is formed, guide the patient to perform forward and lateral biting movements within a short period of time.

[0073] Specifically, since the amount of thermoplastic resin used in the guide section is relatively small, the rate of cooling and hardening is relatively fast. The patient should be guided to move their upper and lower anterior teeth immediately to prevent the thermoplastic resin from cooling and hardening.

[0074] Step S2100: Form the corresponding dynamic occlusal guideline and remove excess thermoplastic resin from the patient's mouth.

[0075] Specifically, corresponding occlusal guide lines are formed in the guide section to guide the anterior teeth to establish normal dynamic occlusion and correct it. Excess thermoplastic resin in the patient's mouth is ground down and removed to improve the patient's wearing comfort.

[0076] Step S2110: Rinse with a three-way water gun or immerse the upper crown in cold water to cool and harden the guide portion.

[0077] Specifically, thermoplastic resins have good properties of softening when heated and hardening when cooled. They can be cooled and hardened by using cold water. They have high plasticity and can be repeatedly modified in a short time, which is convenient and quick.

[0078] The aforementioned method for deprogramming the maxillary muscles and reconstructing non-centric occlusion involves prefabricating a planar guide plate and stably installing it inside the oral cavity. A resin crown or thermoplastic resin crown is then wrapped around the patient's upper premolar region and connected to the planar guide plate. This allows the lower anterior teeth to evenly contact the palatal occlusal area during biting, while the posterior teeth disengage, thereby reducing the burden on the masticatory muscles and temporomandibular joint, achieving deprogramming of the maxillary muscles. A guide line is then formed by applying thermoplastic resin to guide the patient's upper and lower anterior teeth movements, establishing normal dynamic occlusion. Compared to traditional dynamic occlusion guidance methods, this method is simpler in structure, easier to use, more accurate, and can be directly applied in clinical treatment to reduce the burden on the masticatory muscles and temporomandibular joint.

[0079] It should be noted that all of the above embodiments can be applied in clinical treatment. By relaxing the muscles, the masticatory muscles can be depolarized to treat some masticatory muscle pain. Furthermore, by reconstructing non-centric occlusion, the burden on the masticatory muscles and temporomandibular joint caused by malocclusion can be reduced.

[0080] Based on this, the device and method provided in this application can also be applied to the clinical examination of the occlusal status of patients with temporomandibular joint disorder before treatment. Through the above embodiments, the muscles of the orofacial system can be deprogrammed, and the changes in the patient's masticatory muscle pain symptoms can be compared; at the same time, abnormal occlusal contact points and abnormal occlusal movements can be identified during the clinical reconstruction of the patient's non-centric occlusion, and the normal non-centric occlusion can be simulated and reconstructed, providing the patient with a treatment reference plan.

[0081] With the rapid development of digital oral technology, the device and method provided in this application can also assist in constructing an external digital dynamic occlusion model for patients with temporomandibular joint disorder. Through intraoral three-dimensional scanning of the upper and lower jaws, a positioning device is used to locate the spatial position of the upper jaw teeth. Devices such as a mandibular motion trajectory recorder are used to record the natural centric occlusion, non-centric occlusion, and the reconstructed mandibular motion trajectory after non-centric occlusion. Software is used to fit the three-dimensional scanning data of the upper and lower jaws and the static / dynamic motion data to construct a digital static centric occlusion and non-centric dynamic occlusion model for the patient. This model can assist clinicians in performing digital simulation examinations of occlusion status, achieving diagnostic visualization and improving diagnostic accuracy. It can also provide a precise dynamic occlusion model for the digital design of treatment devices such as digital occlusal plates, improving design accuracy and efficiency, reducing clinical adjustment time, increasing the accuracy of orthodontic device design, and enhancing clinical treatment outcomes.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for preparing a deprogrammed orofacial muscle reconstruction and non-centric occlusal guidance device, characterized in that, The device includes: The upper tooth crown is fixed to the upper anterior teeth to disengage the posterior teeth. The upper tooth crown has an occlusal area and includes a resin crown, a retention element, a connector, and a planar guide plate. The resin crown covers the buccal and lingual sides of the premolars. The retention element is installed on the upper anterior teeth. The planar guide plate is fixedly connected to the resin crown and the retention element through the connector. The guide section is located in the patient's anterior teeth area and has a guide line on it to guide the anterior teeth to establish a normal dynamic occlusion. The upper tooth crown and the guide are both made of thermoplastic resin and form a plane in the occlusal area that is in uniform contact with the mandibular anterior teeth. The occlusal area is located on the plane guide plate. The method includes: A thermoplastic resin crown is made in the patient's maxillary anterior teeth region to form an occlusal area that is in uniform contact with the mandibular anterior teeth. Specifically, this includes: placing the prefabricated thermoplastic resin crown in the premolar region to cover the buccal and lingual sides; connecting the planar guide plate to the resin crown plate through a flexible and adjustable connector; and adjusting the position of the planar guide plate according to the position of the premolars and the occlusal contact state of the mandibular anterior teeth so that an occlusal area that is in uniform contact with the mandibular anterior teeth is formed on the planar guide plate. A guide portion is formed by applying thermoplastic resin to the aforementioned occlusal area; Guide the patient's upper and lower anterior teeth to perform left-side, right-side, and protruding non-centric occlusal movements to form a dynamic occlusal guide line in the guide section. Specifically, after forming the guide section, guide the patient to perform protruding and lateral occlusal movements for a short period of time; form the corresponding dynamic occlusal guide line, and remove excess thermoplastic resin from the patient's mouth. Then, rinse with a three-way water gun or place the upper crown in cold water to cool and harden the guide section.

2. The method according to claim 1, characterized in that, The procedure of applying thermoplastic resin to create an upper tooth crown in the patient's maxillary anterior tooth region to form an occlusal area that makes uniform contact with the mandibular anterior teeth, prior to which the procedure also includes: Fabricate flat guide plates, resin crown sleeves, and matching adjustable connectors and retaining components; An adjustable connector and a retaining element are provided between the incisors and lateral incisors for retaining the planar guide plate.

3. The method according to claim 2, characterized in that, The step of applying thermoplastic resin to the aforementioned occlusal region to form a guide portion further includes: Silicone rubber material is used to connect the premolars to the resin crown in the premolar region; Adjust the connector between the maxillary incisors and lateral incisors and add retention elements.

Images