CN110786945B - Tooth implantation operation guide plate with depth guide piece and preparation method thereof - Google Patents
Tooth implantation operation guide plate with depth guide piece and preparation method thereof Download PDFInfo
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- CN110786945B CN110786945B CN201810868367.3A CN201810868367A CN110786945B CN 110786945 B CN110786945 B CN 110786945B CN 201810868367 A CN201810868367 A CN 201810868367A CN 110786945 B CN110786945 B CN 110786945B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0089—Implanting tools or instruments
- A61C8/009—Implanting tools or instruments for selecting the right implanting element, e.g. templates
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- Oral & Maxillofacial Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention provides a dental implant operation guide plate and a preparation method thereof. Wherein, the fixed base can be flexibly sleeved on the edentulous part of a patient and at least one reference healthy tooth in a customized manner; the guiding groove corresponds to a tooth-lacking part of the patient to guide the position and the direction of a tooth implanting hole; and the depth guide piece is adjacent to the guide groove and is provided with an end point which indicates the position of a tooth implantation platform of the edentulous part.
Description
Technical Field
The invention relates to a preparation method of a tooth implantation operation guide plate, in particular to a preparation method of a tooth implantation operation guide plate with a guide groove and a depth guide piece.
Background
The tooth implantation operation refers to a process of implanting an artificial tooth at a missing tooth after the tooth is lost. The artificial tooth is fixed on the artificial tooth root after the artificial tooth root is tightly combined with the alveolar bone so as to complete the reconstruction of the artificial tooth.
Generally, the planning of the dental implant procedure depends on the personal experience of the dentist except for the determination of the implant position and the planning of the procedure based on the patient's medical record, computed tomography, X-ray image, etc. However, the manual judgment often causes the error of the operation, and the accuracy of the tooth implantation operation is affected. Particularly, if the implant position is shifted in the depth of the artificial tooth root, the subsequently fixed artificial tooth cannot effectively replace the original tooth.
For example, the depth of the artificial tooth root is often affected by the appearance of the artificial tooth, if the artificial tooth root is implanted too deeply or too shallowly, the artificial tooth fixed on the artificial tooth root may not be flat in appearance, the height of the artificial tooth root is different from that of the adjacent teeth, the implanted teeth may not be normally occluded and lose the function of the teeth besides the aesthetic requirement, and furthermore, the gum beside the artificial tooth root is easy to be dented and stuck in food residues because the position of the artificial tooth root is different from that of the adjacent teeth.
Therefore, there is a need for a novel dental implant guiding plate to assist a dentist in positioning the implantation position and depth of an artificial tooth root during dental implantation, improve the accuracy of the artificial dental implant operation, and enhance the aesthetic requirements of the dental implant.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method for preparing a customized dental implant surgery guide having an depth guide (EPI) indicating the position of a dental implant platform under the dental pulp to mark the depth of a drilled hole at the dental implant, so that an artificial tooth root can be correctly introduced.
The depth guide piece indicates the depth of the drilled hole at the tooth implantation position in the subsequent tooth implantation operation, so that the subsequent artificial tooth root can be correctly introduced, and the problem that the artificial tooth root is implanted too deeply or too shallowly is avoided
The preparation method of the tooth implantation operation guide plate provided by the invention comprises the following steps: (A) obtaining a reproduction model and a perspective image of the oral cavity of the patient; (B) positioning the position of a tooth implantation hole on the reproduction model, and positioning the position of a tooth implantation platform by utilizing the perspective image; (C) a positioning column is arranged on the tooth implanting hole; (D) covering a curable material on at least part of the copied model, laterally surrounding at least part of the positioning column and forming a column body, wherein one end point of the column body is positioned at the position of the tooth implanting platform so as to form a plastic plate; and (E) solidifying the molding plate to prepare a dental implant surgical guide plate, wherein the dental implant surgical guide plate comprises a fixed base, a guide groove and a depth guide piece; wherein the fixed base is formed at least relative to part of the reproduced model, so that the fixed base can be fixed on part of the reproduced model; the guide groove is formed according to the position of the positioning column; and the depth guide is adjacent to the guide groove and has an end point indicating the dental implant platform.
According to a preferred embodiment, in step (a), the replica model is a gypsum model or a polymer material model. However, the replica model may be a model made of other materials in the art, and any material capable of displaying information on teeth in the mouth of a patient may be used without particular limitation.
According to a preferred embodiment, in step (a), the fluoroscopic image is an X-ray image or a computed tomography image. However, the perspective image of the oral cavity of the patient may be obtained by other technical means in the art, and various perspective images may be used as long as they can show the states of the teeth and alveolar bone of the edentulous portion of the patient and other healthy teeth adjacent to the edentulous portion, without any particular limitation.
According to a preferred embodiment, in the step (B), the position of the dental implant platform is determined according to the position of the alveolar bone of at least one reference healthy tooth near a deficient tooth portion displayed by the fluoroscopic image.
According to a preferred embodiment, in step (D), the curable material may be a material used for preparing a surgical guide of the prior art, for example, a material that can be photo-cured or thermally cured, and is not particularly limited.
According to a preferred embodiment, in step (D), the curable material covers at least the edentulous part model and at least one reference healthy tooth model and surrounds the positioning post to mold the molding plate. However, in other embodiments, the curable material may further cover other adjacent healthy teeth from the reference healthy tooth. The curable material preferably covers at least one healthy tooth model above a midline on the replica model.
According to a preferred embodiment, in step (D), a surface of the fixing base facing the replica model at least conforms to the outer contour of the reference healthy dental model, so that the surface can be matched with the reference healthy dental model. However, in other embodiments, the surface may have an outer contour conforming to other adjacent healthy models extending from the reference healthy model, and may even extend beyond the implant hole, so that the surface and the replica model match each other.
According to a preferred embodiment, in step (D), a metal wire having a length of 1 to 2mm is embedded at the end of the pillar. The wire may for example be a correction wire for dental use.
According to a preferred embodiment, in step (D), the guiding groove is an open groove or a closed groove. And the guiding groove guides the buccal side, the lingual side and the position and the direction of the near center of the tooth implantation hole. The depth of the guide groove is preferably 6mm or more, and the diameter thereof is preferably 2 to 5mm, and may be, for example, 2.0, 2.8, 3.3, 4.1, or 5mm, depending on the size of the drilled hole.
In addition, the invention also provides a dental implant surgery guide plate, which comprises: a fixed base which is movably sleeved on at least one reference healthy tooth of a patient; a guide groove corresponding to a tooth-lacking part of the patient; and a depth guide member adjacent to the guide groove and having an end point; wherein, the guiding groove guides the position and the direction of a tooth implanting hole, and the end point indicates the position of a tooth implanting platform of the edentulous part.
The dental implant surgical guide plate provided by the invention is preferably manufactured by the preparation method described above.
In a preferred embodiment, the fixing base has a surface that conforms to at least the outer contour of the reference healthy tooth, such that the surface can at least match the reference healthy tooth. Furthermore, the fixing base preferably has the shape of an arch curve. However, in other embodiments, the surface may have an outer contour that conforms to the outer contour of other adjacent healthy teeth extending from the reference healthy tooth, and may even extend to all of the same row of teeth (upper or lower) beyond the implant hole, so that the surface may be mated with the reference healthy tooth and other healthy teeth, such that the dental implant surgical template may be secured to the patient's teeth.
In a preferred embodiment, a metal wire having a length of 1 to 2mm is embedded at the end of the depth guide. The wire may be a dental corrective wire.
In a preferred embodiment, the guiding groove is an open groove or a closed groove.
In a preferred embodiment, the guiding slot guides the buccal, lingual and proximal distal positions and directions of a tooth implantation hole.
In a preferred embodiment, the depth of the guide groove is 6mm or more. Therefore, when the tooth implantation operation is performed, the guide groove can stably position the position and the angle of the drill hole.
In a preferred embodiment, the diameter of the guide groove is 2 to 5 mm. For example, it may be 2.0, 2.8, 3.3, 4.1, or 5mm, depending on the size of the drilled hole.
According to the preparation method of the tooth implantation operation guide plate and the tooth implantation operation guide plate, the guide groove in the tooth implantation operation guide plate provided by the invention is used for assisting the positioning of tooth implantation drilling holes and the drilling angle in subsequent tooth implantation operations. In addition, the depth guide piece indicates the depth of the drilled hole at the tooth implantation position in the subsequent tooth implantation operation, so that the subsequently implanted artificial tooth root can be correctly guided in, the problem that the artificial tooth root is implanted too deeply or too shallowly is avoided, the height of the false tooth fixed on the artificial tooth root and the arrangement of the adjacent teeth are smooth, the aesthetic requirement is met, the implanted tooth can be ensured to be normally occluded, and the problem that the gum beside the artificial tooth root is sunken to clamp food residues is avoided.
In the present invention, the term "reproducing model" refers to reproducing a physical dental model of the oral cavity according to the oral cavity condition of the patient, which can show the information of the affected part of the oral cavity of the patient. The term "reference to healthy teeth" refers to teeth adjacent to the edentulous portion, and thus the term "reference to a healthy cast" refers to a model of teeth reproduced in accordance with the reference to healthy teeth near the edentulous portion of the patient.
In the present invention, the term "dental implant platform" refers to a position near the edentulous part of the patient where one or two of the alveolar bone upper edges of the reference healthy teeth extend to the edentulous part, and is also the depth of the artificial tooth root implanted into the gum when the edentulous part is implanted into the tooth root. And the term "midline" refers to the parting line of incisors.
The foregoing and other features and advantages of the invention will be apparent from the following more particular description of preferred embodiments.
Drawings
Fig. 1 illustrates a procedure for preparing a dental implant surgical guide according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a replication model according to an embodiment of the present invention.
FIG. 3 is a schematic view of positioning on a replica mold according to an embodiment of the present invention.
Fig. 4 is a schematic view illustrating a positioning post according to an embodiment of the present invention.
Fig. 5 is a schematic view illustrating a molding die formed on a replica mold according to an embodiment of the present invention.
Fig. 6 is a perspective view of a dental implant surgical guide according to an embodiment of the present invention.
[ notation ] to show
1 reproducing model
11 edentulous part mould
12-reference healthy dental model
13 health tooth model
14 center channel
15 root axis angular line
16 center line
21 tooth implantation hole
22 tooth implantation platform
3 locating column
4 mould the template
41 column
5 tooth implantation operation guide plate
51 fixed base
52 guide groove
53 depth guide
531 end point
6 Metal wire
Detailed Description
Hereinafter, an example will be provided to explain embodiments of the present invention in detail. The advantages and effects of the present invention will be more apparent from the disclosure of the present invention. The drawings attached hereto are simplified and are provided for illustration purposes. The number, shape, and size of the elements shown in the drawings may be modified depending on the actual situation, and the arrangement of the elements may be more complicated. Other aspects of practice or use can be made of the present invention, and various changes and modifications can be made without departing from the spirit and scope of the invention as defined in the following claims.
The flow chart of the preparation method of the implanting operation guide plate is shown in figure 1. Wherein, the step (A) is a front procedure, and a copy model and a perspective image of the oral cavity of the patient are required to be obtained. The obtaining of the replica model can utilize a conventional replica molding method in the art to make oral cavity features (including an edentulous part and teeth) into a replica model 1 as shown in fig. 2, wherein the replica model 1 includes an edentulous part model 11, a reference healthy tooth model 12 and other healthy tooth models 13. The perspective image can be obtained by taking X-ray, and the perspective image should show the position of the edentulous part and the alveolar bone of the reference healthy tooth.
Next, step (B) is a positioning procedure for positioning the position of the tooth implantation hole 21 on the edentulous part mold 11 of the replica mold 1, as shown in fig. 3, the tooth implantation hole 21 is an intersection point of a central groove (central groove)14 and a root axis angular line (root axis)15 at the edentulous part mold 11. In addition, the position of the alveolar bone of the reference healthy tooth in the fluoroscopic image is used to position the implant platform 22 of the implant hole 21.
The positioning of the dental implant platform 22 is determined by referring to at least one alveolar bone position of a healthy tooth near the edentulous portion displayed by the fluoroscopic image, and the alveolar bone position of the edentulous portion is not directly used as the dental implant platform. Therefore, before the subsequent dental implantation operation, if the position of the alveolar bone of the edentulous part of the patient is lower than the dental implantation platform 22, the alveolar bone of the edentulous part is reconstructed by using bone powder before the dental implantation, so that the edge of the alveolar bone is as high as the dental implantation platform 22; or when the position of the alveolar bone of the edentulous part of the patient is higher than the dental implant platform 22, the alveolar bone of the edentulous part should be ground to be as high as the dental implant platform 22 before the dental implant.
Step (C) is a drilling positioning procedure, as shown in fig. 4, a hole is drilled in the tooth implantation hole 21 positioned in the previous step, and a positioning column 3 is inserted into the hole, the height of the positioning column is greater than 6mm, and the diameter of the positioning column is 2.8 mm. The positioning column 3 defines the position and the angle of the artificial tooth root implanted when the subsequent tooth implantation operation guide plate is used for the tooth implantation operation of a patient.
Next, step (D) is a guide plate molding process using a photocurable material (paste)
WP digital), forming a molding plate 4 on the replica model 1, as shown in fig. 5, the light-curable material covering the reference healthy dental model 12 and the other healthy dental models 13 and exceeding the midline 16 of the replica model 1 by at least one healthy dental model, the light-curable material surrounding the positioning posts 3 laterally, and further forming a post 41, and a small section of metal wire 6 (such as orthodontic tooth) being embedded at the end of the post 41About 1 to 2mm) with ends at the implant platform to form a template 4. As illustrated in fig. 6.
Finally, the step (E) is a guide plate forming process, and the replica model 1 and the molding plate 4 formed in the step (D) and covering the replica model 1 are irradiated with halogen light together, so that the molding plate 4 is cured to complete the preparation of a dental implant surgical guide plate 5. The completed dental implant surgical guide 5, as shown in fig. 6, includes a fixed base 51, a guide groove 52, and a depth guide 53. Wherein, because the fixed base 51 is formed by solidifying the molding plate 4 covering the edentulous part model 11, the reference healthy dental model 12 and the other healthy dental models 13, a surface of the fixed base 51 facing the replica model 1 conforms to the outer contours of the reference healthy dental model 12 and the other healthy dental models 13 and can be matched with the reference healthy dental model 12 and the other healthy dental models 13; the guiding groove 52 is formed by solidifying a part of the molding plate 4 which laterally surrounds the positioning column 3, and has a depth D of 6 mm; the depth guide 53 is adjacent to the guiding groove 52, has a substantially cylindrical structure and has an end 531, the end 531 is aligned with the dental implant platform 22, and the metal wire 6 is embedded to indicate the dental implant platform 22.
The dental implant surgical guide plate prepared by the above method can insert a small segment of metal piece into the guide groove 52, and then the dental implant surgical guide plate is placed on the teeth of a patient and then irradiated with X-rays, and the X-ray image is used to confirm whether the positions and directions of the guide groove corresponding to the buccal side, lingual side and near telecentric position and direction of the dental implant are correct, and the metal wire embedded in the end point of the depth guide plate is used to confirm whether the position of the dental implant platform pointed by the end point is correct in the X-ray image.
Although the dental implant surgical guide prepared in this embodiment is used in a dental implant surgery in which an artificial tooth is implanted, the dental implant surgical guide has only a guide groove and a depth guide. However, the number of the guide grooves and the depth guides of the dental implant guide is not limited thereto, and is determined according to the edentulous condition of the patient and the number of the artificial teeth to be implanted per one dental implant operation.
Claims (18)
1. A preparation method of a dental implant surgery guide plate comprises the following steps:
(A) obtaining a reproduction model and a perspective image of the oral cavity of the patient;
(B) positioning the position of a tooth implantation hole on the reproduction model, and positioning the position of a tooth implantation platform by utilizing the perspective image;
(C) a positioning column is arranged at the tooth implantation hole;
(D) covering a solidifiable material on at least part of the copy model, laterally surrounding at least part of the positioning column and forming a column body, wherein one end point of the column body is positioned at the edge of the alveolar bone to form a plastic plate, and a metal wire with the length of 1-2 mm is embedded at the end point of the column body; and
(E) solidifying the molding plate to prepare a tooth implantation surgical guide plate, wherein the tooth implantation surgical guide plate comprises a fixed base, a guide groove and a depth guide piece; wherein the fixed base is formed at least relative to part of the reproduced model, so that the fixed base can be fixed on part of the reproduced model; the guide groove is formed according to the position of the positioning column; and the depth guide is adjacent to the guide groove and has an end point indicating the dental implant platform.
2. The method of claim 1, wherein in step (A), the replica mold is a gypsum mold or a polymer material mold.
3. The method of claim 1, wherein in step (A), the fluoroscopic image is an X-ray image or a computed tomography image.
4. The preparation method according to claim 1, wherein in the step (B), the position of the dental implant platform is determined according to the position of the alveolar bone of at least one reference healthy tooth near a edentulous portion shown in the perspective image.
5. The method of claim 1, wherein in step (D), the curable material covers at least the edentulous part mold and at least one reference healthy tooth mold and surrounds the positioning post to mold the molding plate.
6. The method of claim 5, wherein the curable material covers at least one healthy dental model above a midline on the replica model.
7. The method according to claim 5, wherein in step (D), a surface of the fixing base facing the replica model at least conforms to an outer contour of the reference healthy dental model, so that the surface can be matched with the reference healthy dental model.
8. The method according to claim 1, wherein in the step (E), the guiding groove is an open groove or a closed groove.
9. The method of claim 1, wherein in step (E), the guiding slot guides the buccal, lingual, proximal and distal positions and directions of a tooth implantation hole.
10. The production method according to claim 1, wherein in the step (D), the depth of the guide groove is 6mm or more.
11. The manufacturing method of claim 1, wherein in the step (D), the diameter of the guide groove is 2 to 5 mm.
12. A dental implant procedure guide comprising:
a fixed base which is movably sleeved on an edentulous part of a patient and at least one reference healthy tooth;
a guide groove corresponding to the edentulous part of the patient; and
a depth guide member adjacent to the guide groove and having an end point, wherein a metal wire with a length of 1 to 2mm is embedded at the end point of the depth guide member;
wherein, the guiding groove guides the position and the direction of a tooth implantation hole, and the end point of the depth guiding piece indicates the position of a tooth implantation platform of the edentulous part.
13. The dental implant surgical guide of claim 12, wherein the fixture base has a surface conforming to at least an outer contour of the reference healthy tooth such that the surface is matable with at least the reference healthy tooth.
14. The dental implant surgical guide of claim 12, wherein the fixed base has a shape of an arch curve.
15. The dental implant surgical guide of claim 12, wherein the guide slot is an open slot or a closed slot.
16. The dental implant surgical guide of claim 12, wherein the guide slot guides buccal, lingual, proximal and distal positions and directions of a dental implant hole.
17. The dental implant surgical guide according to claim 12, wherein the depth of the guide groove is 6mm or more.
18. The dental implant surgical guide according to claim 12, wherein the guide groove has a diameter of 2 to 5 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810868367.3A CN110786945B (en) | 2018-08-01 | 2018-08-01 | Tooth implantation operation guide plate with depth guide piece and preparation method thereof |
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| CN201810868367.3A CN110786945B (en) | 2018-08-01 | 2018-08-01 | Tooth implantation operation guide plate with depth guide piece and preparation method thereof |
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| CN110786945B true CN110786945B (en) | 2021-08-10 |
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| JP2010142537A (en) * | 2008-12-22 | 2010-07-01 | Yoshinari Umemura | Surgical guide for dental implant operation |
| CN101822575A (en) * | 2010-04-15 | 2010-09-08 | 浙江工业大学 | Method of making partial-anodontia tooth implantation surgical guide plate |
| CN102451043A (en) * | 2010-10-20 | 2012-05-16 | 财团法人金属工业研究发展中心 | Tooth implantation operation guide plate and manufacturing method thereof |
| CN103284808A (en) * | 2013-06-17 | 2013-09-11 | 上海正雅齿科科技有限公司 | Method for preparing positioning guide plate of oral and dental implants |
| CN105030347A (en) * | 2015-07-23 | 2015-11-11 | 南京航空航天大学 | Digital orthodontic tooth arrangement method based on tooth root information and bracket transfer device designing method based on digital orthodontic tooth arrangement method |
| KR101777261B1 (en) * | 2016-04-28 | 2017-09-12 | 주식회사 디오 | method for manufacturing surgical guide and crown, abutment in mouth for dental implant |
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2018
- 2018-08-01 CN CN201810868367.3A patent/CN110786945B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010142537A (en) * | 2008-12-22 | 2010-07-01 | Yoshinari Umemura | Surgical guide for dental implant operation |
| CN101822575A (en) * | 2010-04-15 | 2010-09-08 | 浙江工业大学 | Method of making partial-anodontia tooth implantation surgical guide plate |
| CN102451043A (en) * | 2010-10-20 | 2012-05-16 | 财团法人金属工业研究发展中心 | Tooth implantation operation guide plate and manufacturing method thereof |
| CN103284808A (en) * | 2013-06-17 | 2013-09-11 | 上海正雅齿科科技有限公司 | Method for preparing positioning guide plate of oral and dental implants |
| CN105030347A (en) * | 2015-07-23 | 2015-11-11 | 南京航空航天大学 | Digital orthodontic tooth arrangement method based on tooth root information and bracket transfer device designing method based on digital orthodontic tooth arrangement method |
| KR101777261B1 (en) * | 2016-04-28 | 2017-09-12 | 주식회사 디오 | method for manufacturing surgical guide and crown, abutment in mouth for dental implant |
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| CN110786945A (en) | 2020-02-14 |
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