CN108618857B - Design and manufacturing method of accurate bionic aesthetic restoration body - Google Patents
Design and manufacturing method of accurate bionic aesthetic restoration body Download PDFInfo
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- CN108618857B CN108618857B CN201810116346.6A CN201810116346A CN108618857B CN 108618857 B CN108618857 B CN 108618857B CN 201810116346 A CN201810116346 A CN 201810116346A CN 108618857 B CN108618857 B CN 108618857B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0004—Computer-assisted sizing or machining of dental prostheses
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- Oral & Maxillofacial Surgery (AREA)
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention relates to a design and manufacturing method of an accurate bionic aesthetic restoration, which comprises the following steps: 1) scanning teeth and adjacent teeth needing aesthetic restoration; 2) designing the three-dimensional shape of the outer surface of the aesthetic restoration by using CAD software and printing the three-dimensional shape into an aesthetic diagnosis model; 3) making an impression by using the model in the step 2), and filling temporary crown flowing resin with tooth color to obtain an aesthetic form consistent with the CAD design; 4) after the aesthetic form of the patient is confirmed, three-dimensional scanning is carried out to obtain the data of the outer surface of the restoration; 5) carrying out three-dimensional scanning again after quantitative tooth preparation to obtain data of the inner surface of the prosthesis; 6) registering the data of the inner surface and the outer surface of the restoration in the same coordinate system by taking the teeth or the gingiva without tooth preparation as a common area to finish the design; 7) the 3D prints the tooth preparation somatotype of bionical color. The invention can improve the predictability of the individual bionic form and the color of the all-ceramic aesthetic restoration body and ensure the accurate realization of the known aesthetic form.
Description
Technical Field
The invention relates to dental restoration manufacturing, in particular to a design and manufacturing method of an accurate bionic aesthetic restoration.
Background
At present, although the dental restoration is designed and manufactured through CAD, the accuracy of the aesthetic form of the dental restoration is inaccurate, the representation color effect is unclear, and meanwhile, the time and the energy paid by three parties of doctors and patients for personalized simulation are huge, so that the difficulty of manufacturing is increased, and adverse effects are brought to patients.
Disclosure of Invention
In order to overcome the defects, the invention provides a design and manufacturing method of an accurate bionic aesthetic restoration body, which can improve the predictability of the individual bionic form and the color of the all-ceramic aesthetic restoration body, ensure the accurate realization of the known aesthetic form, improve the predictability and the controllability of the representing color effect of the semi-transparent aesthetic restoration body after being bonded, greatly reduce the time and the energy of three parties of a medical technician for the individual bionic while improving the aesthetic restoration effect, and is favorable for popularization and application.
In order to achieve the purpose, the invention has the following technical scheme:
the invention relates to a design and manufacturing method of an accurate bionic aesthetic restoration, which comprises the following steps:
1) scanning teeth and adjacent teeth needing aesthetic restoration;
2) designing the three-dimensional shape of the outer surface of the aesthetic restoration by using CAD software and printing the three-dimensional shape into an aesthetic diagnosis model;
3) making an impression by using the model in the step 2), filling temporary crown flowing resin with the tooth color, locating the impression in the current dentition of the patient, and taking out the impression after the resin is solidified to obtain an aesthetic form consistent with the CAD design;
4) after the aesthetic form of the patient is confirmed, three-dimensional scanning is carried out to obtain the data of the outer surface of the restoration;
5) carrying out three-dimensional scanning again after quantitative tooth preparation to obtain data of the inner surface of the prosthesis;
6) the inner and outer surface data of the restoration are registered in the same coordinate system by taking the teeth or the gingiva without tooth preparation as a common area, and the design of the whole surface of the restoration is completed;
7) and 3D printing the bionic color tooth preparation model by using a 3D printer and a printing material with a corresponding color according to the clinical tooth preparation colorimetric result.
Wherein the step 7) comprises: and selecting a proper aesthetic restoration material model by using the bionic color tooth preparation model, and performing color adjustment on the manufactured aesthetic restoration.
The invention has the advantages that:
the invention can improve the predictability of the individual bionic form and the color of the all-ceramic aesthetic restoration, ensure the accurate realization of the known aesthetic form, improve the predictability and the controllability of the representing color effect of the semi-transparent aesthetic restoration after bonding, greatly reduce the time and the energy of three parties of a doctor and a patient for the individual bionic while improving the aesthetic restoration effect, and is beneficial to popularization and application.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The invention relates to a design and manufacturing method of an accurate bionic aesthetic restoration, which comprises the following steps:
1) scanning teeth and adjacent teeth needing aesthetic restoration;
2) designing the three-dimensional shape of the outer surface of the aesthetic restoration by using CAD software and printing the three-dimensional shape into an aesthetic diagnosis model;
3) making an impression by using the model in the step 2), filling temporary crown flowing resin with the tooth color, locating the impression in the current dentition of the patient, and taking out the impression after the resin is solidified to obtain an aesthetic form consistent with the CAD design;
4) after the aesthetic form of the patient is confirmed, three-dimensional scanning is carried out to obtain the data of the outer surface of the restoration;
5) carrying out three-dimensional scanning again after quantitative tooth preparation to obtain data of the inner surface of the prosthesis;
6) the inner and outer surface data of the restoration are registered in the same coordinate system by taking the teeth or the gingiva without tooth preparation as a common area, and the design of the whole surface of the restoration is completed;
7) and 3D printing the bionic color tooth preparation model by using a 3D printer and a printing material with a corresponding color according to the clinical tooth preparation colorimetric result.
Wherein the step 7) comprises: and selecting a proper aesthetic restoration material model by using the bionic color tooth preparation model, and performing color adjustment on the manufactured aesthetic restoration.
The aesthetic restoration standard is set as follows:
1. upper anterior incisal edge curve: smooth and continuous, the projection of which on the occlusal plane is generally parabolic, when smiling, the line is parallel to the lower lip dry and wet line curve;
2. anterior tooth ratio: the sum of the widths of the upper and middle incisors on the two sides is equal to the distance from the cusp to the middle line of the face, and the ratio of the width to the height of the upper and middle incisors basically conforms to the golden section ratio of 1/1.6 (the outline of the face is oval and cusp-round) or 80 percent (the outline of the face is square-round); the positions and the shapes of the two upper and middle incisors are symmetrical;
3. the distal curvature of the upper central incisor is coordinated with the lateral incisors and the profile of the upper central incisor is near to the middle, and similarly, the distal contour of each tooth is similar to the proximal contour of the distal tooth.
4. Incisional abduction of incisors: 1-1, 1-2 and 2-3; the abduction gap is a gap around the adjacent area of the axial surface of the tooth and is formed by the normal convexity of the axial surface of the tooth crown;
5. the adjacent point: the connecting line of the upper anterior teeth adjacent points is parallel to the radian of the dry and wet line of the lower lip during smiling;
6. tooth long axis: the long axis of the same tooth is symmetrical to the central line;
7. gingival margin: the exposure is less than 3mm when smiling, and the gingival margin connecting line is basically parallel to the incisal margin line of the upper anterior teeth; the radian of a single gingival margin is natural, the radian of the gingival margin of the same tooth is symmetrical, and the height of the side incisor gingival margin is about 1mm lower than that of other teeth;
8. fitting the incisor teeth: no serious abrasion, narrow dental arch and open and close teeth;
9. tooth color, skin color, and gum color coordination.
As described above, the present invention can be more fully realized. The above description is only a reasonable embodiment of the present invention, and the scope of the present invention includes but is not limited to the above description, and any insubstantial modifications of the technical solution of the present invention by those skilled in the art are included in the scope of the present invention.
Claims (1)
1. A design and manufacturing method of an accurate bionic aesthetic restoration body is characterized by comprising the following steps:
1) scanning teeth and adjacent teeth needing aesthetic restoration;
2) designing the three-dimensional shape of the outer surface of the aesthetic restoration by using CAD software and printing the three-dimensional shape into an aesthetic diagnosis model;
3) making an impression by using the model in the step 2), filling temporary crown flowing resin with the tooth color, locating the impression in the current dentition of the patient, and taking out the impression after the resin is solidified to obtain an aesthetic form consistent with the CAD design;
4) after the aesthetic form of the patient is confirmed, three-dimensional scanning is carried out to obtain the data of the outer surface of the restoration;
5) carrying out three-dimensional scanning again after quantitative tooth preparation to obtain data of the inner surface of the prosthesis;
6) the inner and outer surface data of the restoration are registered in the same coordinate system by taking the teeth or the gingiva without tooth preparation as a common area, and the design of the whole surface of the restoration is completed;
7)3D printing the tooth preparation body model with bionic colors by using a 3D printer and printing materials with corresponding colors according to the clinical tooth preparation body colorimetric result;
the step 7) comprises the following steps: selecting a proper aesthetic restoration material model by using the tooth preparation model with the bionic color, and performing color adjustment on the manufactured aesthetic restoration;
the aesthetic restoration standards are set as:
(1) upper anterior incisal edge curve: smooth and continuous, the projection of which on the occlusal plane is generally parabolic, when smiling, the line is parallel to the lower lip dry and wet line curve;
(2) anterior proportion: the sum of the widths of the upper and middle incisors on the two sides is equal to the distance from the cusp to the middle line of the face, the ratio of the width to the height of the upper and middle incisors accords with the golden section ratio of 1/1.6, and the outline of the face is oval and cusp-round or 80 percent of the outline of the face is square and round; the positions and the shapes of the two upper and middle incisors are symmetrical;
(3) the distal and medial curvature of the upper medial incisor is coordinated with the lateral incisor and the profile is mesial, and similarly, the distal and medial contours of each tooth are similar to the mesial contour of the distal tooth;
(4) incisional abduction of incisors: 1-1 <1-2 < 2-3; the abduction gap is a gap around the adjacent area of the axial surface of the tooth and is formed by the normal convexity of the axial surface of the tooth crown;
(5) the abutment point: the connecting line of the upper anterior teeth adjacent points is parallel to the radian of the dry and wet line of the lower lip during smiling;
(6) long axis of tooth: the long axis of the same tooth is symmetrical to the central line;
(7) the gingival margin: the exposure is less than 3mm when smiling, and the gingival margin connecting line is basically parallel to the incisal margin line of the upper anterior teeth; the radian of a single gingival margin is natural, the radian of the gingival margin of the same tooth is symmetrical, and the height of the side incisor gingival margin is about 1mm lower than that of other teeth;
(8) incisional occlusal view: without arch stenosis and open bite closure.
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| CN201810116346.6A CN108618857B (en) | 2018-02-06 | 2018-02-06 | Design and manufacturing method of accurate bionic aesthetic restoration body |
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| CN201810116346.6A CN108618857B (en) | 2018-02-06 | 2018-02-06 | Design and manufacturing method of accurate bionic aesthetic restoration body |
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| CN108618857A CN108618857A (en) | 2018-10-09 |
| CN108618857B true CN108618857B (en) | 2020-11-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110478072B (en) * | 2019-07-31 | 2023-06-16 | 北京大学口腔医学院 | 3D printing manufacturing method of accurate bionic ceramic dental prosthesis |
| CN111150507B (en) * | 2020-01-19 | 2021-09-17 | 四川大学 | Method for transferring occlusion relation and morphological design in dental occlusion reconstruction restoration |
| CN111920535B (en) * | 2020-07-10 | 2022-11-25 | 上海交通大学医学院附属第九人民医院 | All-ceramic tooth preparation method based on three-dimensional scanning technology of facial and oral dentition |
| CN112438816B (en) * | 2020-09-27 | 2021-08-31 | 嘉兴饶稷科技有限公司 | Manufacturing method of 3D printed implant |
| CN112716633A (en) * | 2021-01-04 | 2021-04-30 | 洛阳曦美义齿有限公司 | Manufacturing method of comfortable full-mouth adsorption denture meeting aesthetic function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3593755B1 (en) * | 2009-03-20 | 2021-08-18 | 3Shape A/S | Computer program product for planning, visualization and optimization of dental restorations |
| US20120261848A1 (en) * | 2009-12-23 | 2012-10-18 | Haraszati Gyoergy | Method to create removable dental prosthesis, and the dental prosthesis making thereof |
| US10251726B2 (en) * | 2011-11-28 | 2019-04-09 | 3Shape A/S | Dental preparation guide |
| CN102688106A (en) * | 2012-05-08 | 2012-09-26 | 上海上远齿科技术有限公司 | Three-dimensionally printed and rapidly formed resin tooth and preparation method thereof |
| CN104546151A (en) * | 2013-10-09 | 2015-04-29 | 北京大学口腔医学院 | Numerical control laser automatic tooth preparation method and equipment thereof |
| HU230856B1 (en) * | 2014-05-20 | 2018-09-28 | Dicomlab Dental Kft | Method and system to design and manufacture implant mask |
| CN104434329B (en) * | 2014-08-12 | 2015-09-16 | 杭州而然科技有限公司 | A kind of milling shaping manufacture method of dental all-ceramics dummy |
| DE102014117222A1 (en) * | 2014-11-25 | 2016-05-25 | Heraeus Kulzer Gmbh | Production of a dental prosthesis by imprinting the denture base on the denture teeth |
| US9451873B1 (en) * | 2015-03-06 | 2016-09-27 | Align Technology, Inc. | Automatic selection and locking of intraoral images |
| KR101685606B1 (en) * | 2016-03-17 | 2016-12-20 | (주)덴토스 | Orthodontics bracket structure by 3d printer |
| CN105930615B (en) * | 2016-05-12 | 2019-07-26 | 中国人民解放军第四军医大学 | The flowing transportation work station of CAD-CAM-3D print system and mouth mending material is processed automatically |
| CN106580496B (en) * | 2016-11-18 | 2018-09-21 | 中国人民解放军第四军医大学 | A kind of same period row fixes-movable combined remediation method |
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Effective date of registration: 20230922 Address after: No. 12, Qizhou East Road, Jiangning District, Nanjing City, Jiangsu Province, 210000 Patentee after: NANJING PROFETA INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: 5009, scientific research building, School of Stomatology, Peking University, 22 Zhongguancun South Street, Haidian District, Beijing 100081 Patentee before: PEKING University SCHOOL OF STOMATOLOGY |
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