CN105078598A - Digital preparation method of edentulous jaw individual impression tray - Google Patents
Digital preparation method of edentulous jaw individual impression tray Download PDFInfo
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- CN105078598A CN105078598A CN201410202071.XA CN201410202071A CN105078598A CN 105078598 A CN105078598 A CN 105078598A CN 201410202071 A CN201410202071 A CN 201410202071A CN 105078598 A CN105078598 A CN 105078598A
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- 208000002354 Edentulous Jaw Diseases 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 210000001909 alveolar process Anatomy 0.000 claims abstract description 25
- 210000001519 tissue Anatomy 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000011505 plaster Substances 0.000 claims abstract description 12
- 238000010146 3D printing Methods 0.000 claims abstract description 10
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 5
- 210000004877 mucosa Anatomy 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 7
- 239000006071 cream Substances 0.000 claims description 4
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims description 3
- 229940072056 alginate Drugs 0.000 claims description 3
- 235000010443 alginic acid Nutrition 0.000 claims description 3
- 229920000615 alginic acid Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000008719 thickening Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 15
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 5
- 210000000214 mouth Anatomy 0.000 description 5
- 238000003745 diagnosis Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011960 computer-aided design Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 241001014327 Anodontia Species 0.000 description 1
- 206010002583 anodontia Diseases 0.000 description 1
- 230000005212 anodontia Effects 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 210000004373 mandible Anatomy 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Dental Preparations (AREA)
Abstract
The invention relates to a digital preparation method of an edentulous jaw individual impression tray. The method comprises the following steps: preparing a preliminary impression, or forming a plaster model by pouring; scanning the preliminary impression or scanning the plaster model; introducing scanning data into reverse engineering software and intercepting tissue surface point cloud data of the edentulous jaw preliminary impression; acquiring point cloud data of undercut-free alveolar ridge surface; uniformly enlarging the alveolar ridge surface by 1-2mm in the normal direction of the alveolar ridge surface so as to obtain a virtual tray inner surface; uniformly thickening the virtual tray inner surface by 2mm in the normal direction thereof; designing an upper jaw virtual tray handle and a lower jaw virtual tray handle; and fusing data boundaries of the inner and outer surfaces of the virtual tray as well as the handle and saving the data in an STL format, importing the data into a computer system connected to 3D printing equipment, and making the edentulous jaw individual impression tray from a polymethyl methacrylate (PMMA) material by virtue of the 3D printing equipment. The digital designing and manufacturing method of the edentulous jaw individual impression tray can replace traditional hand-made manufacturing method.
Description
Technical field
The present invention relates to a kind of making of edentulous impression tray, be specifically related to the digitized preparation method of the personalized impression tray of a kind of edentulous jaw.
Background technology
1, the manual complete denture individual tray manufacturing technology of clinical practice both at home and abroad at present
Make complete denture and have 4 committed steps: die, model, neck position relation (containing occlusal balance), row's tooth and base profile.Wherein, die and model are bases, and had die and model accurately, complete denture could obtain good maintenance.But be feasible by utility tray once-through method impression taking to removable partial denture, concerning complete denture, the anodontia neckline cavity tissue of utility tray and concrete patient is just substantially similar, therebetween the position distance had is uneven, between edge and mucosa fold line, gap is not etc., cannot obtain accurate model in order to delivery.And the individual tray that secondary method, repeatedly method make can make the pressure at each position very even, the thickness uniformity of impression material, reduces the error that polymerization shrinkage causes.Especially edge can be almost completely the same with mucosa fold line, therefore can obtain die accurately.And the Edentulous Cases bad to residual alveolar ridge condition, often requirement is not reached with ready-made tray once-through method delivery, it is then very practical that secondary impression method produces edentulous impression by individual tray, that Edentulous Cases is carried out the most basic in complete denture restoration treatment, conventional clinical key operation technology and produced die by employing individual tray, obtaining the morphological characteristic of patient mouth inner tissue accurately, is the domestic and international oral cavity educational circles ideal of seek assiduously and target.
At present, individual tray can add red cream by ready-made tray and be formed, but process of clinical application is loaded down with trivial details, and skill hand-manipulated requires very high, and operating unskilled is that impression making failure very easily occurs.Junior doctors and medico are difficult to grasp at short notice, cause clinical edentulous impression producing process will consume a large amount of time and efforts, often needs of patients half a day even daylong time.In recent years, then preliminary cast makes the method for individual tray progressively by clinical acceptance with self-solidifying photocurable resin material, but operating process is still comparatively complicated, the operating time does not reduce.And this kind of method makes individual tray with self-solidifying or photocurable resin material on preliminary cast, the correct stretching, extension in edge, handle position and shape can not disturb surrounding soft tissue is movable, alveolar ridge of mandible top is placed supporting device should not wider than residual alveolar ridge width with avoid the interference of histokinesis at the bottom of boil on the nape opposite the mouth cause clinical produce die time precision efficiency lower, relevant criterion be difficult to realize.But the process of making individual tray is completely by completing by hand, need the regular hour, need patient's further consultation and experience level for technician has larger dependency again, and manual operations is difficult to be embodied as the three dimensions that final impression reserves thickness uniformity, cannot meet efficient, convenient, to produce individual tray accurately object.Therefore, need research and development badly brand-new, the digitized technology of preparing of automatization, intelligent clinical individual tray, substitute traditional manual mode!
2, the digital prototype technology of complete denture individual tray
The digital prototype technology of oral repairing clinic or Computer-aided Design Technology (CAD), be made up of the planning of dummy three-dimensional, design software program and the computer hardware that carries it, current conventional CAD software program allows operator to realize Interactive Design in each stage, all angles, meets the individual demand of dummy.In recent years, gradually main flow is become with the non-contact 3-D scanner that structured light (grating), line laser and 3 D stereo camera work are representative, the operation interface of high efficiency, high-resolution and hommization is more their outstanding feature, can provide good application platform for the scanning of mouth external model.The extensive use be used successfully to clinical diagnosis and treatment process in the acquisition of the plaster model three-dimensional data of the making complete crown of clinical oral, facial 3 d image data acquisition etc. of mouthful outer scanning technique, and the Design of digital of the individual tray of complete denture still belongs to a new field in Clinical Science of Stomatology field.
3, the digitized manufacturing system technology of complete denture individual tray
At present, occurred some Digitized Manufacturing Technologies both at home and abroad and be applied to clinical oral diagnosis and treatment, its basic principle virtual dummy can be manufactured material object exactly, requires good fitness and try one's best to reduce the workload of technician's secondary operations.Conventional technology has three classes: numerical control mill, grinding machine tool are processed into pre-material block automatically, and Gypsum Fibrosum die directly makes dummy, quick shaping (RP) technology.Three-dimensional printing technology in current rapid shaping technique and the also develop rapidly of the application in field, oral cavity thereof, 3 D-printing is a kind of direct digitization manufacture (DirectDigitalManufacturing), directly product can be produced by 3D solid cad model, reduce or eliminate blank and prepare the intermediate step such as part process and assemble and properties of materials can be played to greatest extent, reduce the waste of material.Therefore, adopt three-dimensional printing technology to realize the digitized manufacturing system of the individual tray of complete denture, and have quick, accurate, efficient, convenient, feature timely, and having no both at home and abroad and relevant report at present.
Summary of the invention
The object of this invention is to provide the digitized preparation method of the personalized impression tray of a kind of edentulous jaw, traditional-handwork making is substituted with the personalized impression tray of edentulous jaw of Design of digital and making, realize the target that clinical oral produces the personalized impression tray of complete denture edentulous jaw automatically, effectively can improve the clinical treatment operating technology level of basic unit doctor at short notice, improve diagnosis and treatment efficiency and quality.
In order to achieve the above object, the present invention has following technical scheme:
The digitized preparation method of the personalized impression tray of a kind of edentulous jaw of the present invention, comprises the following steps:
1, a digitized preparation method for the personalized impression tray of edentulous jaw, comprises the following steps:
1) produce preliminary impression with die cream or alginate, can plaster model be poured into;
2) directly scan preliminary impression or scanning plaster model with dentognathic model spatial digitizer, obtain the three-dimensional data of edentulous jaw preliminary impression or plaster model tissue surface form;
3) scan-data is called in reverse engineering software, extracting edentulous jaw preliminary impression tissue surface mucosa fold line is edge line, take edge line as border, intercepts the tissue surface cloud data of edentulous jaw preliminary impression;
4) in reverse engineering software platform, corresponding step 3) the virtual pallet of edentulous jaw preliminary impression, choose one | tooth closes | gum to enter a direction, fill and lead up the party upwards alveolar ridge cheek of all edge line inside, tongue Ce Daoao district, obtain without the surperficial cloud data of recessed alveolar ridge;
5) 1-2mm will be amplified along alveolar ridge surface uniform along alveolar ridge surface normal, for the personalized impression tray of final edentulous jaw reserves the three dimensions of uniformity, obtain virtual pallet inner surface;
6) along virtual pallet inner surface normal direction by its uniform thickened 2mm, then design one enter vertical and tangent with the inner surface plane in a direction with virtual pallet, using it as virtual pallet outer surface;
7) virtual for upper jaw tray handle being designed to bar portion is rectangle, and end is the hands handle of arc; It is rectangle that virtual for lower jaw tray handle is designed to bar portion, and end is leg-of-mutton hands handle;
8) data boundary of virtual pallet inner surface, outer surface and handle is merged, obtain the intact form data of the virtual pallet of the personalized preliminary impression of edentulous jaw, preserve with STL form;
9) by step 8) described in the computer system that is connected with 3D printing device of STL data importing, by 3D printing device, make the personalized impression tray of edentulous jaw of PMMA material.Wherein, described step 5) 1-2mm will be amplified along alveolar ridge surface uniform along alveolar ridge surface normal.
The invention has the advantages that:
Traditional-handwork making is substituted with the personalized impression tray of edentulous jaw of Design of digital and making, for the three dimensions of uniformity reserved by final impression material, realize the target that clinical oral produces the personalized impression tray of complete denture edentulous jaw automatically, the present invention effectively can improve the clinical treatment operating technology level of basic unit doctor at short notice, improves diagnosis and treatment efficiency and quality.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of edentulous jaw Gypsum Fibrosum preliminary impression of the present invention;
Fig. 2 is the schematic diagram of the personalized impression tray of edentulous jaw of the present invention;
Fig. 3 is the enlarged diagram in edentulous jaw Gypsum Fibrosum preliminary impression Dao Ao district of the present invention.
In figure, 1, lower edentulous jaw Gypsum Fibrosum preliminary impression tissue surface mucosa fold line; 2, upper edentulous jaw Gypsum Fibrosum preliminary impression tissue surface mucosa fold line; 3, | tooth close | gum to; 4, alveolar ridge; 5, Dao Ao district; 6, pallet inner surface; 7, pallet inner surface; 8, hands handle; 9, the intersection point in mucosa fold line and path of insertion direction.When path of insertion direction refers to and wears artificial tooth, the route in place of artificial tooth.
Detailed description of the invention
Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
See Fig. 1, the digitized preparation method of the personalized impression tray of a kind of edentulous jaw of the present invention, comprises the following steps:
1, a digitized preparation method for the personalized impression tray of edentulous jaw, comprises the following steps:
1) produce preliminary impression with die cream or alginate, can plaster model be poured into;
2) directly scan preliminary impression or scanning plaster model with dentognathic model spatial digitizer, obtain the three-dimensional data of edentulous jaw preliminary impression or plaster model tissue surface form;
3) scan-data is called in reverse engineering software, extracting edentulous jaw preliminary impression tissue surface mucosa fold line is edge line, take edge line as border, intercepts the tissue surface cloud data of edentulous jaw preliminary impression;
4) in reverse engineering software platform, corresponding step 3) the virtual pallet of edentulous jaw preliminary impression, choose one | tooth closes | gum to enter a direction, fill and lead up the party upwards alveolar ridge cheek of all edge line inside, tongue Ce Daoao district, obtain without the surperficial cloud data of recessed alveolar ridge;
5) 1-2mm will be amplified along alveolar ridge surface uniform along alveolar ridge surface normal, for the personalized impression tray of final edentulous jaw reserves the three dimensions of uniformity, obtain virtual pallet inner surface;
6) along virtual pallet inner surface normal direction by its uniform thickened 2mm, then design one enter vertical and tangent with the inner surface plane in a direction with virtual pallet, using it as virtual pallet outer surface;
7) virtual for upper jaw tray handle being designed to bar portion is rectangle, and end is the hands handle of arc; It is rectangle that virtual for lower jaw tray handle is designed to bar portion, and end is leg-of-mutton hands handle;
8) data boundary of virtual pallet inner surface, outer surface and handle is merged, obtain the intact form data of the virtual pallet of the personalized preliminary impression of edentulous jaw, preserve with STL form;
9) by step 8) described in the computer system that is connected with 3D printing device of STL data importing, by 3D printing device, make the personalized impression tray of edentulous jaw of PMMA material.
Wherein, described step 5) 1-2mm will be amplified along alveolar ridge surface uniform along alveolar ridge surface normal.
Described occlusion cast scanner can adopt German SmartOptics880DentalScanner company: model is SmartOptics scanner.
Three-dimensional reverse engineering software can adopt RaindropGeomagic company of the U.S., GeomagicStudio2012 version software.
As mentioned above, just the present invention can be realized comparatively fully.The foregoing is only comparatively reasonably embodiment of the present invention, protection scope of the present invention includes but are not limited to: this, and any the including based on unsubstantiality degeneration change in technical solution of the present invention of those skilled in the art the present invention includes within scope.
Claims (2)
1. a digitized preparation method for the personalized impression tray of edentulous jaw, is characterized in that comprising the following steps:
1) produce preliminary impression with die cream or alginate, can plaster model be poured into;
2) directly scan preliminary impression or scanning plaster model with dentognathic model spatial digitizer, obtain the three-dimensional data of edentulous jaw preliminary impression or plaster model tissue surface form;
3) scan-data is called in reverse engineering software, extracting edentulous jaw preliminary impression tissue surface mucosa fold line is edge line, take edge line as border, intercepts the tissue surface cloud data of edentulous jaw preliminary impression;
4) in reverse engineering software platform, corresponding step 3) the virtual pallet of edentulous jaw preliminary impression, choose one | tooth closes | gum to enter a direction, fill and lead up the party upwards alveolar ridge cheek of all edge line inside, tongue Ce Daoao district, obtain without the surperficial cloud data of recessed alveolar ridge;
5) along alveolar ridge surface normal, alveolar ridge surface uniform is amplified 1-2mm, for the personalized impression tray of final edentulous jaw reserves the three dimensions of uniformity, obtain virtual pallet inner surface;
6) along virtual pallet inner surface normal direction by its uniform thickened 2mm, then design one enter vertical and tangent with the inner surface plane in a direction with virtual pallet, using it as virtual pallet outer surface;
7) virtual for upper jaw tray handle being designed to bar portion is rectangle, and end is the hands handle of arc; It is rectangle that virtual for lower jaw tray handle is designed to bar portion, and end is leg-of-mutton hands handle;
8) data boundary of virtual pallet inner surface, outer surface and handle is merged, obtain the intact form data of the virtual pallet of the personalized preliminary impression of edentulous jaw, preserve with STL form;
9) by step 8) described in the computer system that is connected with 3D printing device of STL data importing, by 3D printing device, make the personalized impression tray of edentulous jaw of PMMA material.
2. the digitized preparation method of the personalized impression tray of a kind of edentulous jaw according to claim 1, is characterized in that: described step 5) 1-2mm will be amplified along alveolar ridge surface uniform along alveolar ridge surface normal.
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| CN201410202071.XA CN105078598B (en) | 2014-05-14 | 2014-05-14 | The digitized preparation method of edentulous jaw personalization impression tray |
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| CN201410202071.XA CN105078598B (en) | 2014-05-14 | 2014-05-14 | The digitized preparation method of edentulous jaw personalization impression tray |
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| CN106096189A (en) * | 2016-06-24 | 2016-11-09 | 浙江隐齿丽医学技术有限公司 | The design and production method of dental instruments |
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| CN106901853A (en) * | 2015-12-22 | 2017-06-30 | 北京大学口腔医学院 | A kind of edentulous jaw swallows the digital record and three-dimensional rebuilding method of position |
| CN106901854A (en) * | 2017-01-09 | 2017-06-30 | 同济大学 | Using the upper lower jaw location determining method of 3D printing complete denture individual tray |
| CN107198586A (en) * | 2016-03-16 | 2017-09-26 | 北京大学口腔医学院 | A kind of Digital Design preparation method of edentulous jaw functional imperative individual tray |
| WO2017181397A1 (en) * | 2016-04-22 | 2017-10-26 | 北京大学口腔医院 | Method and apparatus for making functional, digital full denture |
| CN108992190A (en) * | 2018-03-06 | 2018-12-14 | 北京巴登技术有限公司 | Method for making multi-functional edentulous and lipless impression tray |
| CN109276332A (en) * | 2018-09-12 | 2019-01-29 | 深圳市康泰健牙科器材有限公司 | A kind of oral cavity model production method and system |
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| CN113262063A (en) * | 2021-05-18 | 2021-08-17 | 中国人民解放军空军军医大学 | Manufacturing method of individual tray |
| CN115531017A (en) * | 2022-08-30 | 2022-12-30 | 中国人民解放军空军军医大学 | A preparation method of a complete denture with personalized base grinding surface and neutral zone teeth arrangement |
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| NL161982C (en) * | 1975-10-21 | 1980-04-15 | Josephus Schreinemakers Prof | SPOON FOR MAKING AN IMPRESSION OF AN UPPER OR LOWER JACKET OR A DENTURE. |
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| CN102169519B (en) * | 2011-02-21 | 2012-11-07 | 中国人民解放军第四军医大学 | Plastic appliance digitalizing method of cleft palate alveolar bone |
| CN105596106B (en) * | 2015-12-17 | 2017-12-12 | 中国人民解放军第四军医大学 | A kind of method for being segmented modulus and complete dental arch model being gathered by computer registration combination |
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| CN107198586B (en) * | 2016-03-16 | 2019-08-30 | 北京大学口腔医学院 | A kind of Digital Design production method of edentulous jaw functional imperative individual tray |
| CN107198586A (en) * | 2016-03-16 | 2017-09-26 | 北京大学口腔医学院 | A kind of Digital Design preparation method of edentulous jaw functional imperative individual tray |
| WO2017181397A1 (en) * | 2016-04-22 | 2017-10-26 | 北京大学口腔医院 | Method and apparatus for making functional, digital full denture |
| CN106096189A (en) * | 2016-06-24 | 2016-11-09 | 浙江隐齿丽医学技术有限公司 | The design and production method of dental instruments |
| CN106388959A (en) * | 2016-09-12 | 2017-02-15 | 西安工业大学 | Preparation method of zirconia ceramic false teeth |
| CN106901854A (en) * | 2017-01-09 | 2017-06-30 | 同济大学 | Using the upper lower jaw location determining method of 3D printing complete denture individual tray |
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| CN108992190A (en) * | 2018-03-06 | 2018-12-14 | 北京巴登技术有限公司 | Method for making multi-functional edentulous and lipless impression tray |
| CN109276332A (en) * | 2018-09-12 | 2019-01-29 | 深圳市康泰健牙科器材有限公司 | A kind of oral cavity model production method and system |
| CN109758242A (en) * | 2019-01-29 | 2019-05-17 | 武汉大学 | A fenestration-taking method for precise dental implants |
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| CN112842590A (en) * | 2021-02-23 | 2021-05-28 | 首都医科大学附属北京口腔医院 | Tool for improving film printing efficiency of edentulous jaw implantation restoration and use method |
| CN112842590B (en) * | 2021-02-23 | 2022-02-15 | 首都医科大学附属北京口腔医院 | Tool for improving impression efficiency of edentulous jaw implantation repair and use method |
| CN113262063A (en) * | 2021-05-18 | 2021-08-17 | 中国人民解放军空军军医大学 | Manufacturing method of individual tray |
| CN115531017A (en) * | 2022-08-30 | 2022-12-30 | 中国人民解放军空军军医大学 | A preparation method of a complete denture with personalized base grinding surface and neutral zone teeth arrangement |
| CN115531017B (en) * | 2022-08-30 | 2023-11-03 | 中国人民解放军空军军医大学 | Preparation method of complete denture with personalized base grinding surface and neutral area tooth arrangement |
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