Customized tooth protection sleeve and whole-course digital design and manufacturing method thereof

Abstract

The invention discloses a customized tooth protection sleeve and a whole-course digital designing and manufacturing method thereof, and the method comprises the steps: employing an intraoral three-dimensional scanner to scan the upper and lower jaw dentitions of a user, so as to obtain the digital dentition data and occlusion data of the user; the real dentition and the digital dentition of the user are subjected to spatial position registration in the mandibular movement analysis system, and the mandibular movement analysis system is used for collecting and recording the jaw position data of the mandibular posture position of the user and the mandibular movement track in the processes of tooth clicking, mandibular protraction and lateral movement of the user; inputting the digital dentition data, the occlusion data, the jaw position data and the mandibular movement track data into CAD / CAM software to design a customized tooth protection sleeve; and computer-aided manufacturing of the customized tooth protection sleeve is carried out by adopting a digital milling technology. The customized tooth protection sleeve is manufactured through a full-digital process, is good in fitness and high in comfort level, and has the potential of improving the athletic ability.

Description

Technical Field

[0001] The present invention relates to the field of digital oral technology, and in particular to a customized mouthguard and a fully digital design and production method thereof. Background Art

[0002] A mouth guard is an impact-resistant, resilient cushion used during sports to prevent injury to the teeth, mouth, cheeks, tongue, and jaw. The American Dental Association states that one-third of all dental injuries are related to sports. Mouth guards are mandatory in collision sports where there is a risk of injury (such as football, hockey, and boxing). Children and adults may consider wearing mouth guards to prevent oral injuries in sports such as basketball, baseball, softball, wrestling, soccer, and volleyball. Mouth guards can protect the teeth in the mouth from impact during sports, and can also minimize the extent of injury if accidentally bitten. Mouth guards create a shock absorber in the mouth, which can help reduce most of the shock force after an impact, preventing the head from being injured due to excessive concussion.

[0003] The sports mouthguards currently used are mostly ordinary mouthguards, thermoplastic mouthguards and customized mouthguards. Ordinary mouthguards are pre-made products that can be used directly, but they have poor retention, low comfort, poor fit with the inside of the mouth, and are easy to affect breathing and pronunciation; thermoplastic mouthguards are made by heating the pre-formed mouthguard in hot water and then placing it in the user's mouth for biting and pressing to shape it, so that it can be worn by different people, but this type of mouthguard may interfere with breathing and pronunciation, and has poor comfort and stability, and its thickness will become thinner during the biting and shaping process, resulting in a poor protective effect; customized mouthguards require doctors to take molds for users to make a dental model, and then design the mouthguard based on the model. This type of mouthguard is comfortable, but its manufacturing method is not completely digital, and there is no basis for determining the thickness, and the matching of the upper and lower jaws is not accurate. Summary of the invention

[0004] The object of the present invention is to provide a customized mouthguard and a fully digital design and production method thereof, so as to solve the problems described in the above background technology.

[0005] To achieve the above-mentioned and other related purposes, the present invention provides a method for fully digitally designing and manufacturing a customized mouthguard, which comprises the following steps:

[0006] Step S1, scanning the upper and lower jaw dentition of the user using an intraoral three-dimensional scanner to obtain digital dentition data and occlusion data of the user;

[0007] Step S2, aligning the real dentition of the user with the digitized dentition data in space in the mandibular movement analysis system, and using the mandibular movement analysis system to collect and record the mandibular position data and mandibular movement trajectory of the user's mandibular posture during the process of the user performing tooth tapping, mandibular protrusion and lateral movement;

[0008] Step S3, inputting the digitized dentition data, occlusion data, jaw position data and mandibular movement trajectory data into CAD / CAM software to design a customized mouthguard, so as to obtain design data of the customized mouthguard;

[0009] Step S4, computer-aided manufacturing of the customized mouthguard using digital milling technology according to the design data of the customized mouthguard.

[0010] In some embodiments, step S1 specifically includes:

[0011] When the user is in a normal mouth-opening state, an intraoral three-dimensional scanner is used to scan the user's upper and lower jaw dentition to obtain the user's digital dentition data;

[0012] When the user is in the maximum intercusp position, an intraoral three-dimensional scanner is used to scan the user's upper and lower teeth to obtain the occlusal data of the user's upper and lower teeth.

[0013] In some of the embodiments, the digitized dentition data and occlusion data are in STL format.

[0014] In some embodiments, step S2 specifically includes:

[0015] After the user's real dentition and digitized dentition data are imported into the mandibular movement analysis system, a signal receiver matching the mandibular movement analysis system is worn on the user's head and face;

[0016] Based on the point-to-point method of the tooth occlusal surface, the user's real dentition and the digital dentition are spatially aligned;

[0017] When the user performs tooth tapping, mandibular protrusion and lateral movement, the mandibular movement analysis system is used to collect and record the jaw position data and mandibular movement trajectory of the user's mandibular posture, and the jaw position data and mandibular movement trajectory are output in STL format;

[0018] Among them, in the recorded jaw movement trajectory during tooth tapping, the jaw posture position is determined to determine the resting position. A gap is defined and a thickness of the custom-made mouthguard is determined based on the gap.

[0019] In some embodiments, step S3 is specifically:

[0020] The digitized dentition data, occlusion data, jaw position data and mandibular movement trajectory data are input into CAD / CAM software, so as to design a customized mouthguard according to the design requirements of the customized mouthguard using the CAD / CAM software, adjust the designed customized mouthguard according to the distribution of bite force analyzed according to the mandibular movement trajectory, and export the design data of the customized mouthguard in STL format.

[0021] In some of the embodiments, the CAD / CAM software is Exocad DentalCAD ​​software.

[0022] In some embodiments, the design requirements of the customized mouthguard specifically include:

[0023] Both sides cover to the maxillary first molar, the labial edge does not exceed the mucosal turning point, and the lingual edge covers to the palatal fold on the palate side;

[0024] The morphological design enables each tooth in the mandible to have at least one static contact point on the custom-made mouthguard, and the static contact point is extended into a contact surface to establish free centration;

[0025] Ensure that the contact distance of the forward movement is greater than or equal to 2mm;

[0026] Ensure that lateral movement guided by the custom-fit mouthguard is guided only by the canines after the mandible has moved at least 2 mm in a fully horizontal direction.

[0027] In some embodiments, step S4 specifically includes: inputting the design data of the customized mouthguard into computer-aided manufacturing software, and using a milling machine to perform digital milling to manufacture the customized mouthguard.

[0028] In some of the embodiments, the computer-aided production software is Exocad webview software.

[0029] In addition, the present invention also discloses a customized mouthguard, which is manufactured using the above-mentioned full-process digital design and manufacturing method.

[0030] Compared with the prior art, the present invention has at least one of the following advantages or beneficial effects:

[0031] 1. The customized mouthguard produced by the fully digital design and production method of the customized mouthguard provided by the present invention conforms to the user's tooth shape, dental arch shape and soft tissue shape. This method will greatly improve the comfort, fit and stability of the sports mouthguard, enhance the protective function of the sports mouthguard, and at the same time has the potential to improve the user's athletic ability.

[0032] Second, the fully digital design and production method of the customized mouthguard provided by the present invention adopts a fully digital process to reduce the technical requirements for doctors;

[0033] 3. The fully digital design and production method of the customized mouthguard provided by the present invention records the user's mandibular movement data during the design process, and can be virtually adjusted. , improving the precision of custom-made mouthguards;

[0034] 4. The fully digital design and production method of the customized mouthguard provided by the present invention can preserve the user's digital data for a long time. If the user's customized mouthguard is lost or damaged, it can be directly remade based on the original data without the user having to take a mold again, thereby reducing time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a flow chart of the fully digital design and production method of the customized mouthguard in an embodiment of the present invention. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0037] Embodiment 1:

[0038] See also Figure 1 This embodiment discloses a fully digital design and production method for a customized mouthguard. Specifically, the fully digital design and production method comprises the following steps:

[0039] Step S1, using an intraoral three-dimensional scanner to scan the upper and lower jaw dentition of the user to obtain the user's digital dentition data and occlusion data.

[0040] Specifically, when the user is in a normal mouth-opening state, an intraoral 3D scanner is used to scan the user's upper and lower dentition to obtain the user's digitized dentition data; when the user is in the maximum cusp interdigitation position, an intraoral 3D scanner is used to scan the user's upper and lower dentition to obtain the occlusion data of the user's upper and lower dentition; in actual applications, medical personnel can use an opener to pull open the user's lips, and use an intraoral 3D scanner device to scan and record the user's upper and lower dentition and occlusion relationship, thereby obtaining the user's digitized dentition data and occlusion data.

[0041] Optionally, the digitized dentition data and occlusion data are in STL (stereolithography) format to facilitate subsequent processing of the digitized dentition data and occlusion data.

[0042] Step S2, aligning the real dentition of the user with the spatial position of the digitized dentition in the mandibular movement analysis system, and using the mandibular movement analysis system to collect and record the jaw position data and mandibular movement trajectory of the user's mandibular posture when the user performs tooth tapping, mandibular protrusion and lateral movement; wherein the mandibular posture is the position of the mandible when the user sits upright, looks straight ahead, does not chew, swallow, or speak, the teeth are slightly apart, and the chewing muscles are in a relaxed state.

[0043] Specifically, after the user's digital dentition data is imported into the mandibular motion analysis system and the digital dentition is generated in the mandibular motion analysis system, the signal receiver of the mandibular motion analysis system is worn on the user's head and face, and the user's real dentition and the digital dentition are spatially aligned based on the point-to-point method of the tooth occlusal surface. After the matching is completed, the digital dentition model shows the same frequency and trajectory as the user in the mandibular motion analysis system. Instruct the user to perform tooth tapping, mandibular protrusion and lateral movement, and during the user's tooth tapping, mandibular protrusion and lateral movement, use the mandibular motion analysis system to collect and record the user's mandibular posture data and mandibular motion trajectory, and output the jaw position data and mandibular motion trajectory in STL format; wherein, in the recorded mandibular motion trajectory during tooth tapping, the mandibular posture is determined to determine the resting position. gap, and determine the thickness of the customized mouthguard based on the gap (specifically, The thickness of the gap is used as the thickness of the custom-made mouthguard);

[0044] Step S3, input the digitized dentition data, occlusion data, jaw position data and mandibular movement trajectory data into CAD / CAM software (such as Exocad DentalCAD ​​software), so as to use the CAD / CAM software to design a customized mouthguard according to the design requirements of the customized mouthguard, and adjust the customized mouthguard according to the distribution of the bite force analyzed according to the mandibular movement trajectory. The adjustment specifically eliminates the redundant contact area to achieve the most stable occlusal relationship and obtain the best protection; then export the design data of the customized mouthguard in STL format (i.e., the adjusted design data of the customized mouthguard).

[0045] The design requirements of the above-mentioned customized mouthguard specifically include: covering the maxillary first molar on both sides; the labial edge does not exceed the mucosal turning point; the lingual edge covers the palatal fold on the palatal side; the morphological design ensures that each tooth of the mandible has at least one static contact point on the customized mouthguard to achieve multi-point stable contact, and extend the static contact points into contact surfaces to establish free centering; ensure that the contact distance of the protrusive movement is greater than or equal to 2mm; ensure that in the lateral movement guided by the customized mouthguard, the mandible is guided only by the canines after moving at least 2mm in the completely horizontal direction.

[0046] Step S4, using digital milling technology to perform computer-aided production of the customized mouthguard according to the design data of the customized mouthguard; specifically, inputting the design data of the customized mouthguard into computer-aided production software, and using a milling machine to perform digital milling to produce the customized mouthguard.

[0047] In an embodiment of the present invention, the computer-aided production software is Exocad webview software.

[0048] Embodiment 2:

[0049] The present embodiment provides a customized mouthguard, which is manufactured using the fully digital design and manufacturing method of the customized mouthguard provided in the first embodiment. The customized mouthguard has good fit, high comfort, and has the potential to improve athletic ability.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some of the technical features therein by equivalents; and these modifications or replacements do not affect the essential content of the present invention. Therefore, any simple modification and replacement of the above embodiments made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A fully digital design and production method for a customized mouthguard, characterized in that: The following steps are involved: Step S1, scanning the upper and lower jaw dentition of the user using an intraoral three-dimensional scanner to obtain digital dentition data and occlusion data of the user; Step S2, aligning the real dentition of the user with the digitized dentition in the mandibular movement analysis system, and using the mandibular movement analysis system to collect and record the mandibular position data and mandibular movement trajectory of the user's mandibular posture during the user's tooth tapping, mandibular protrusion and lateral movement; Step S3, inputting the digitized dentition data, occlusion data, jaw position data and mandibular movement trajectory data into CAD / CAM software to design a customized mouthguard, so as to obtain design data of the customized mouthguard; Step S4, computer-aided manufacturing of the customized mouthguard using digital milling technology according to the design data of the customized mouthguard.

2. The method for fully digitally designing and manufacturing a customized mouthguard according to claim 1, characterized in that: The step S1 specifically includes: When the user is in a normal mouth-opening state, an intraoral three-dimensional scanner is used to scan the user's upper and lower jaw dentition to obtain the user's digital dentition data; When the user is in the maximum intercusp position, an intraoral three-dimensional scanner is used to scan the user's upper and lower teeth to obtain the occlusal data of the user's upper and lower teeth.

3. The method for fully digitally designing and manufacturing a customized mouthguard according to claim 1, characterized in that: The digital dentition data and occlusion data are both in STL format.

4. The method for fully digitally designing and manufacturing a customized mouthguard according to claim 1, characterized in that: The step S2 specifically includes: After the user's digitized dentition data is imported into the mandibular movement analysis system to generate the digitized dentition, a signal receiver matching the mandibular movement analysis system is worn on the user's head and face; Based on the point-to-point method of the tooth occlusal surface, the user's real dentition and the digital dentition are spatially aligned; When the user performs tooth tapping, mandibular protrusion and lateral movement, the mandibular movement analysis system is used to collect and record the jaw position data and mandibular movement trajectory of the user's mandibular posture, and the jaw position data and mandibular movement trajectory are output in STL format; Among them, in the recorded jaw movement trajectory during tooth tapping, the jaw posture position is determined to determine the resting position. A gap is defined and a thickness of the custom-made mouthguard is determined based on the gap.

5. The method for fully digitally designing and manufacturing a customized mouthguard according to claim 1, characterized in that: The step S3 is specifically as follows: The digitized dentition data, occlusion data, jaw position data and mandibular movement trajectory data are input into CAD / CAM software, so as to design a customized mouthguard according to the design requirements of the customized mouthguard using the CAD / CAM software, adjust the designed customized mouthguard according to the distribution of bite force analyzed according to the mandibular movement trajectory, and export the design data of the customized mouthguard in STL format.

6. The method for fully digitally designing and manufacturing a customized mouthguard according to claim 5, characterized in that: The CAD / CAM software is Exocad DentalCAD ​​software.

7. The method for fully digitally designing and manufacturing a customized mouthguard according to claim 5, characterized in that: The design requirements of the customized mouthguard specifically include: Both sides cover to the maxillary first molar, the labial edge does not exceed the mucosal turning point, and the lingual edge covers to the palatal fold on the palate side; The morphological design enables each tooth in the mandible to have at least one static contact point on the custom-made mouthguard, and the static contact point is extended into a contact surface to establish free centration; Ensure that the contact distance of the forward movement is greater than or equal to 2mm; Ensure that lateral movement guided by the custom-fit mouthguard is guided only by the canines after the mandible has moved at least 2 mm in a fully horizontal direction.

8. The method for fully digitally designing and manufacturing a customized mouthguard according to claim 1, characterized in that: The step S4 specifically includes: inputting the design data of the customized mouthguard into computer-aided manufacturing software, and using a milling machine to perform digital milling to manufacture the customized mouthguard.

9. The method for fully digitally designing and manufacturing a customized mouthguard according to claim 1, characterized in that: The computer-aided production software is Exocad webview software.

10. A customized mouthguard, characterized in that: It is manufactured by adopting the full digital design and manufacturing method described in any one of claims 1 to 9.

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