CN116889479A - Manufacturing method of occlusion adjuster - Google Patents
Manufacturing method of occlusion adjuster Download PDFInfo
- Publication number
- CN116889479A CN116889479A CN202310988907.2A CN202310988907A CN116889479A CN 116889479 A CN116889479 A CN 116889479A CN 202310988907 A CN202310988907 A CN 202310988907A CN 116889479 A CN116889479 A CN 116889479A
- Authority
- CN
- China
- Prior art keywords
- point
- bite
- angle
- plane
- adjuster
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 210000003625 skull Anatomy 0.000 claims abstract description 4
- 210000003781 tooth socket Anatomy 0.000 claims description 24
- 210000004283 incisor Anatomy 0.000 claims description 18
- 210000001154 skull base Anatomy 0.000 claims description 7
- 230000001815 facial effect Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 210000004513 dentition Anatomy 0.000 claims description 3
- 210000003254 palate Anatomy 0.000 claims description 3
- 230000036346 tooth eruption Effects 0.000 claims description 3
- 210000004373 mandible Anatomy 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000000465 moulding Methods 0.000 description 8
- 210000000988 bone and bone Anatomy 0.000 description 6
- 210000001909 alveolar process Anatomy 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 210000001983 hard palate Anatomy 0.000 description 4
- 201000000615 hard palate cancer Diseases 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 210000001847 jaw Anatomy 0.000 description 3
- 239000003550 marker Substances 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 210000002455 dental arch Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011369 optimal treatment Methods 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 208000004872 Maxillary Fractures Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses a manufacturing method of a bite adjuster, which comprises the following steps: shooting the side face of the skull of the patient by using an X-ray film, and marking a plurality of characteristic points on the obtained X-ray film; connecting the characteristic planes by the marked characteristic points, and measuring the surface type angle according to the measured characteristic planes; determining the thickness of the occlusal surface of the occlusal regulator according to the measured surface type angle; and manufacturing the occlusion adjuster according to the thickness of the occlusion surface. According to the invention, different occlusion adjusters are manufactured according to different occlusion thicknesses of front teeth and back teeth of a patient, so that the efficiency of tooth correction is ensured, and the correction period is shortened.
Description
Technical Field
The invention relates to the technical field of bite regulators, in particular to a method for manufacturing a bite regulator.
Background
Humans have an upper jaw, called the upper jaw bone, which forms the upper dental arch, and an articulating lower jaw, called the lower jaw bone, which forms the lower dental arch. The patient has a proper bite when the upper and lower arches are sized and shaped to contact the upper and lower jaws when the upper and lower jaws are closed. In addition, the respective teeth of the upper and lower arches are correctly positioned relative to each other along the length of the arches so that they properly mate with each other.
The occlusion of a normal person is called a class of occlusion and is characterized in that the teeth of the upper arch cover the teeth of the lower arch, the front teeth of the lower arch being located 1-2mm behind the front teeth of the upper arch. When the position of the upper jaw of a person exceeds the position of one kind of occlusion forward relative to the position of the lower jaw, two kinds of occlusion are formed, and the main symptoms are deep coverage, anterior tooth deep coverage, anterior maxillary mandibular retroversion and the like. When the position of the human upper jaw exceeds one type of bite backward relative to the position of the lower jaw, three types of bites are formed, the main symptoms being ground covering days (inverse jaw), opposite edges, and the like.
When correcting, each patient has different occlusion thickness of front and back teeth. At present, most companies only provide a few fixed models, doctors select relatively suitable occlusion adjusters according to the oral conditions of patients, the mode cannot meet the comfort requirements of most patients, and correction efficiency is low, so that correction period is long.
Therefore, there is a need to devise a method of manufacturing a bite adjuster that addresses the above-described issues.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide a manufacturing method of the occlusion adjuster, which is used for manufacturing different occlusion adjusters according to different occlusion thicknesses of front teeth and rear teeth of a patient, ensuring the efficiency of tooth correction and shortening the correction period.
In order to achieve the above purpose, the invention adopts the following technical scheme: a method of making a bite adjuster comprising the steps of:
s1: shooting the side face of the skull of the patient by using an X-ray film, and marking a plurality of characteristic points on the obtained X-ray film;
s2: connecting the characteristic planes by the marked characteristic points, and measuring the surface type angle according to the measured characteristic planes;
s3: determining the thickness of the occlusal surface of the occlusal regulator according to the surface type angle measured in the step S2;
wherein, the thickness range of the occlusal surface of the occlusal regulator is 0.2 mm-50 mm.
S4: and manufacturing the occlusion adjuster according to the thickness of the occlusion surface.
When the occlusion adjuster is manufactured, an occlusion adjuster mold is manufactured according to the thickness of an occlusion surface, manufacturing materials are injected into a forming mold, and the formed occlusion adjuster is obtained through filling, pressure maintaining, cooling and ejection.
The manufacturing of the occlusion adjuster is not limited to the above process, but the occlusion adjuster can be manufactured by hot press molding, namely, hot press molding of a manufacturing material by a molding die, manufacturing of the occlusion adjuster by hot press, pressure maintaining and cooling procedures, or manufacturing of the die by 3D printing operation, and manufacturing of the corresponding occlusion adjuster by using the printed die.
Further, the feature points marked in S1 are craniofacial marker points, maxillary marker points, and mandibular marker points.
Further, the craniofacial marking points comprise a butterfly saddle point, a nasogen point, an ear point, a craniofacial point and a Bolton point, the maxillary marking points comprise an orbit point, a wing maxillary fracture point, a front nasal spine, a rear nasal spine, an upper tooth socket seat point, an upper tooth socket edge point and an upper middle incisor point, and the mandibular marking points comprise a lower tooth socket seat point, a lower tooth socket edge point, a lower middle incisor point, a front chin point, a chin vertex, a chin lower point and a mandibular corner point.
The butterfly saddle point is the center of a butterfly saddle image and is a common cranium mark point; the nasion point refers to the foremost point of the nasion suture, which is a mark point of the anterior cranium and represents the junction of the face and the cranium; the ear points are the uppermost points of the external auditory meatus, and the 1mm position behind the vertex of the condyle is divided into mechanical ear points and anatomic ear points; the skull base point is the midpoint of the front edge of the occipital macropore, and the mark of the back skull base; the Bolton point refers to the most concave point of the posterior occipital condyle notch.
The orbit point refers to the lowest point of the inferior orbit rim; the upper jaw crack point of the wing refers to the lowest point of the upper jaw crack outline of the wing; the anterior nasal spine refers to the tip of the anterior nasal spine, the foremost point of the hard palate, and the bony class II points are marked at 0.5mm more forward; the posterior nasal spine refers to the tip of the bone spine at the rear part of the hard palate; the upper tooth socket point is the most concave point of the bone part between the front nasal spines and the upper tooth socket edge point; the upper alveolar edge point refers to the foremost lower point of the upper alveolar process. The enamel-cementum junction of the upper and middle incisors; the upper middle incisor point refers to the foremost point of the upper middle incisor edge.
The lower tooth socket point is the most concave point of the bone part between the lower tooth socket flange point and the front chin point; the lower alveolar edge point refers to the foremost upper point of the lower alveolar process, and the enamel-cementum boundary of the lower central incisors; the lower middle incisor point refers to the foremost point of the lower middle incisor edge; the front chin point refers to the most protruding point of the chin; the under chin point is the lowest point of the chin part; the vertex of the chin refers to the midpoint between the front point of the chin and the point under the chin; the mandibular angle point refers to the rear lower point of the mandibular angle.
Further, the feature planes connected in S2 include a reference plane, a measurement plane, and a mandibular plane. The high angle and the low angle are that the angle between the mandible plane and the orbital ear plane is higher than 28 degrees and lower than 22 degrees.
Further, the reference plane comprises an anterior skull base plane, an eye ear plane, a Bolton plane, and the measurement plane comprises a palate plane and a bite plane.
Further, the face type angle measured in S2 includes SNA angle, SNB angle, ANB angle, face angle, and mandibular plane angle.
The SNA angle is an angle formed by a center of a butterfly saddle, a nose root point and an upper tooth socket point. Reflecting the front-back position relation of the upper jaw relative to the cranium, when the angle is overlarge, the anterior maxillary process and the facial aspect can be convex, otherwise, the posterior maxillary face is concave; the SNB angle is an angle formed by the center of the butterfly saddle, the root point of the nose and the lower tooth socket point. Reflecting the positional relationship of the mandible relative to the cranium; the ANB angle is the angle formed by the upper socket point, the root point and the lower socket point, and is the difference between the SNA angle and the SNB angle. The angle reflects the mutual position relation of the upper and lower jawbone to the cranium; the face angle refers to the lower back angle at which the face plane NP intersects the eye-ear plane FH. This angle reflects the degree of the mandibular collapse, the greater the angle, the more anterior the mandible is, and conversely, the lower jaw collapses posteriorly; the mandibular plane angle refers to the intersection angle between the mandibular plane and the eye-ear plane. This angle represents the steepness of the mandible, the magnitude of which also reflects the height of the face.
Further, the occlusion adjuster is integrally formed and is made of silica gel. And (3) pouring medical liquid silica gel into a mould for molding, removing the mould, and simply trimming to obtain the finished product appliance.
Further, the bite adjuster's upper and lower dentition relationship may be recorded using bite wax, scanned, and recorded for inter-jaw relationship.
The invention has the beneficial effects that:
the invention is used for manufacturing the occlusal regulator for patients with different surface types, and the size values of the occlusal surfaces of the occlusal regulator are different. According to different surface types, occlusion surfaces with different thicknesses are designed, the occlusion thicknesses of front and rear tooth areas are different, so that the optimal treatment effect on a case is ensured, different occlusion adjusters are manufactured according to the different occlusion thicknesses of front and rear teeth of a patient, the efficiency of tooth correction is ensured, and the correction period is shortened.
Drawings
FIG. 1 is a flow chart of a manufacturing process according to an embodiment of the invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, a method for manufacturing a bite adjuster according to this embodiment includes the following steps:
s1: shooting the side face of the skull of the patient by using an X-ray film, and marking a plurality of characteristic points on the obtained X-ray film;
s2: connecting the characteristic planes by the marked characteristic points, and measuring the surface type angle according to the measured characteristic planes;
s3: determining the thickness of the occlusal surface of the occlusal regulator according to the surface type angle measured in the step S2;
wherein, the thickness range of the occlusal surface of the occlusal regulator is 0.2 mm-50 mm.
S4: and manufacturing the occlusion adjuster according to the thickness of the occlusion surface.
When the occlusion adjuster is manufactured, an occlusion adjuster mold is manufactured according to the thickness of an occlusion surface, manufacturing materials are injected into a forming mold, and the formed occlusion adjuster is obtained through filling, pressure maintaining, cooling and ejection.
The manufacturing of the occlusion adjuster is not limited to the above process, but the occlusion adjuster can be manufactured by hot press molding, namely, hot press molding of a manufacturing material by a molding die, manufacturing of the occlusion adjuster by hot press, pressure maintaining and cooling procedures, or manufacturing of the die by 3D printing operation, and manufacturing of the corresponding occlusion adjuster by using the printed die.
The occlusal regulator is manufactured for patients with different surface types, and the size values of the occlusal surfaces of the occlusal regulator are different. According to different surface types, occlusion surfaces with different thicknesses are designed, the occlusion thicknesses of front and rear tooth areas are different, so that the optimal treatment effect on a case is ensured, different occlusion adjusters are manufactured according to the different occlusion thicknesses of front and rear teeth of a patient, the efficiency of tooth correction is ensured, and the correction period is shortened.
The characteristic points marked in the S1 are craniofacial marking points, upper jaw marking points and lower jaw marking points.
The craniofacial mark points comprise a butterfly saddle point, a nose root point, an ear point, a craniofacial point and a Bolton point, the upper jaw mark points comprise an orbit point, a wing upper jaw crack point, a front nose thorn, a rear nose thorn, an upper tooth socket seat point, an upper tooth socket edge point and an upper middle incisor point, and the lower jaw mark points comprise a lower tooth socket seat point, a lower tooth socket edge point, a lower middle incisor point, a front chin point, a chin vertex, a chin lower point and a lower jaw corner point.
The butterfly saddle point is the center of a butterfly saddle image and is a common cranium mark point; the nasion point refers to the foremost point of the nasion suture, which is a mark point of the anterior cranium and represents the junction of the face and the cranium; the ear points are the uppermost points of the external auditory meatus, and the 1mm position behind the vertex of the condyle is divided into mechanical ear points and anatomic ear points; the skull base point is the midpoint of the front edge of the occipital macropore, and the mark of the back skull base; the Bolton point refers to the most concave point of the posterior occipital condyle notch.
The orbit point refers to the lowest point of the inferior orbit rim; the upper jaw crack point of the wing refers to the lowest point of the upper jaw crack outline of the wing; the anterior nasal spine refers to the tip of the anterior nasal spine, the foremost point of the hard palate, and the bony class II points are marked at 0.5mm more forward; the posterior nasal spine refers to the tip of the bone spine at the rear part of the hard palate; the upper tooth socket point is the most concave point of the bone part between the front nasal spines and the upper tooth socket edge point; the upper alveolar edge point refers to the foremost lower point of the upper alveolar process. The enamel-cementum junction of the upper and middle incisors; the upper middle incisor point refers to the foremost point of the upper middle incisor edge.
The lower tooth socket point is the most concave point of the bone part between the lower tooth socket flange point and the front chin point; the lower alveolar edge point refers to the foremost upper point of the lower alveolar process, and the enamel-cementum boundary of the lower central incisors; the lower middle incisor point refers to the foremost point of the lower middle incisor edge; the front chin point refers to the most protruding point of the chin; the under chin point is the lowest point of the chin part; the vertex of the chin refers to the midpoint between the front point of the chin and the point under the chin; the mandibular angle point refers to the rear lower point of the mandibular angle.
The feature planes connected in S2 include a reference plane, a measurement plane, and a mandibular plane. The high angle and the low angle are that the angle between the mandible plane and the orbital ear plane is higher than 28 degrees and lower than 22 degrees.
For high angle cases, when the occlusion adjuster is manufactured, the thickness of the formulated posterior tooth area is 5mm, and the thickness of the anterior tooth area is 2mm;
for low angle cases, the bite adjuster was made with a thickness of 2mm for the posterior region and 4mm for the anterior region.
The reference plane includes an anterior skull base plane, an eye ear plane, a Bolton plane, and the measurement plane includes a palate plane and a bite plane.
The facial form angle measured in S2 includes SNA angle, SNB angle, ANB angle, facial angle, and mandibular plane angle.
The SNA angle is an angle formed by a center of a butterfly saddle, a nose root point and an upper tooth socket point. Reflecting the front-back position relation of the upper jaw relative to the cranium, when the angle is overlarge, the anterior maxillary process and the facial aspect can be convex, otherwise, the posterior maxillary face is concave; the SNB angle is an angle formed by the center of the butterfly saddle, the root point of the nose and the lower tooth socket point. Reflecting the positional relationship of the mandible relative to the cranium; the ANB angle is the angle formed by the upper socket point, the root point and the lower socket point, and is the difference between the SNA angle and the SNB angle. The angle reflects the mutual position relation of the upper and lower jawbone to the cranium; the face angle refers to the lower back angle at which the face plane NP intersects the eye-ear plane FH. This angle reflects the degree of the mandibular collapse, the greater the angle, the more anterior the mandible is, and conversely, the lower jaw collapses posteriorly; the mandibular plane angle refers to the intersection angle between the mandibular plane and the eye-ear plane. This angle represents the steepness of the mandible, the magnitude of which also reflects the height of the face.
The occlusion adjuster is integrally formed and is made of silica gel. And (3) pouring medical liquid silica gel into a mould for molding, removing the mould, and simply trimming to obtain the finished product appliance.
The bite adjuster's upper and lower dentition relationship may be recorded using bite wax, scanned and recorded.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. A method of making a bite adjuster, comprising the steps of:
s1: shooting the side face of the skull of the patient by using an X-ray film, and marking a plurality of characteristic points on the obtained X-ray film;
s2: connecting the characteristic planes by the marked characteristic points, and measuring the surface type angle according to the measured characteristic planes;
s3: determining the thickness of the occlusal surface of the occlusal regulator according to the surface type angle measured in the step S2;
s4: and manufacturing the occlusion adjuster according to the thickness of the occlusion surface.
2. A method of making a bite adjuster according to claim 1, wherein: the characteristic points marked in the S1 are craniofacial marking points, upper jaw marking points and lower jaw marking points.
3. A method of making a bite adjuster according to claim 2, wherein: the craniofacial mark points comprise a butterfly saddle point, a nose root point, an ear point, a craniofacial point and a Bolton point, the upper jaw mark points comprise an orbit point, a wing upper jaw crack point, a front nose thorn, a rear nose thorn, an upper tooth socket seat point, an upper tooth socket edge point and an upper middle incisor point, and the lower jaw mark points comprise a lower tooth socket seat point, a lower tooth socket edge point, a lower middle incisor point, a front chin point, a chin vertex, a chin lower point and a lower jaw corner point.
4. A method of making a bite adjuster according to claim 1, wherein: the feature planes connected in S2 include a reference plane, a measurement plane, and a mandibular plane.
5. A method of making a bite adjuster according to claim 4, wherein: the reference plane includes an anterior skull base plane, an eye ear plane, a Bolton plane, and the measurement plane includes a palate plane and a bite plane.
6. A method of making a bite adjuster according to claim 1, wherein: the facial form angle measured in S2 includes SNA angle, SNB angle, ANB angle, facial angle, and mandibular plane angle.
7. A method of making a bite adjuster according to claim 1, wherein: the occlusion adjuster is integrally formed and is made of silica gel.
8. A method of making a bite adjuster according to claim 1, wherein: the bite adjuster's upper and lower dentition relationship may be recorded using bite wax, scanned and recorded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310988907.2A CN116889479A (en) | 2023-08-07 | 2023-08-07 | Manufacturing method of occlusion adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310988907.2A CN116889479A (en) | 2023-08-07 | 2023-08-07 | Manufacturing method of occlusion adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116889479A true CN116889479A (en) | 2023-10-17 |
Family
ID=88312103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310988907.2A Pending CN116889479A (en) | 2023-08-07 | 2023-08-07 | Manufacturing method of occlusion adjuster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116889479A (en) |
-
2023
- 2023-08-07 CN CN202310988907.2A patent/CN116889479A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10828135B2 (en) | Systems and processes for forming anatomical features in dentures | |
| US9402698B2 (en) | Systems and processes for forming anatomical features in dentures | |
| CN107080554B (en) | Temporomandibular joint measuring method and dental lamina preparation method | |
| US10751153B2 (en) | Apparatus and method for registration of a digital dental bite | |
| CN112535545B (en) | Complete-process digital manufacturing method of complete denture | |
| US8998615B2 (en) | Method and apparatus for preparing denture | |
| CN114948287B (en) | Occlusion induction appliance design and manufacturing method and occlusion induction appliance | |
| CN211534911U (en) | Wax bite mould for scanning | |
| CN111497248B (en) | Preparation method of appliance for abnormal repositioning of mandible | |
| WO2017181397A1 (en) | Method and apparatus for making functional, digital full denture | |
| US20200138546A1 (en) | Orthotic devices & methods for treating complications of the masticatory neuromusculature | |
| CN113171190B (en) | Preparation method of orthodontic appliance with tooth arrangement function | |
| US11992376B2 (en) | Dental restoration manufacturing method and manufacturing system, and general-purpose wax bite applied thereto | |
| CN217938413U (en) | Dental instrument and dental instrument set | |
| CN116889479A (en) | Manufacturing method of occlusion adjuster | |
| CN112869895B (en) | Manufacturing method of digital 3D printing soft elastic tooth protector | |
| CN114795524A (en) | Digital double-baffle corrector for mouth breathing with mandible retraction and manufacturing method | |
| CN112043436A (en) | Preparation method of oral function jaw pad | |
| KR101887569B1 (en) | A face-frame for making a 3-dimensional reference plane on CT image and a 3-dimensional reference plane on CT image made by the same | |
| CN116509576B (en) | Orthodontic function appliance design method, manufacturing method and orthodontic function appliance | |
| KR20200102563A (en) | scanning purpose wax-bite and motion scanning method using thereof applying to manufacturing dental restoration | |
| JP6341842B2 (en) | Method and program for determining occlusal two planes | |
| TW201542177A (en) | Reconstruction method for complete denture and device thereof | |
| CN113749797B (en) | Invisible appliance with non-uniform thickness and design method thereof | |
| WO2023217254A1 (en) | Dental instrument, dental instrument kit, and design methods and preparation methods therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |