CN104127253B - A kind of seamless appliance Orthodontic force measuring method that there is coating thickness and compensate - Google Patents
A kind of seamless appliance Orthodontic force measuring method that there is coating thickness and compensate Download PDFInfo
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- CN104127253B CN104127253B CN201410392815.9A CN201410392815A CN104127253B CN 104127253 B CN104127253 B CN 104127253B CN 201410392815 A CN201410392815 A CN 201410392815A CN 104127253 B CN104127253 B CN 104127253B
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Abstract
The present invention relates to a kind of seamless appliance Orthodontic force measuring method that there is coating thickness and compensate, after acquisition original dental jaw digital model, original dental jaw digital model reserves sensor space, namely remove and sensor coating thickness in dental surface relevant position to be moved, the space that shape adapts, namely coating thickness compensation is carried out, obtain the tooth jaw digital model of reserved sensor space, original dental jaw digital model goes out target tooth jaw digital model according to rescuing conceptual design, then tooth jaw physical model and the target tooth jaw physical model of reserved sensor space is produced, target tooth jaw physical model produces seamless appliance, sensor is arranged on the tooth jaw physical model of reserved sensor space, then seamless appliance is worn on the tooth jaw physical model of reserved sensor space, and goes out Orthodontic force by sensor measurement.The method is not only measured accurately, and simple, and implementation cost is low.
Description
Technical field
The present invention relates to seamless appliance Orthodontic force field of measuring technique in stomatology, particularly a kind of seamless appliance Orthodontic force measuring method having coating thickness and compensate, can be used for measuring and analyzes the seamless stressing conditions rescued in process of tooth.
Background technology
Occur in the U.S. in 1997 without bracket invisible orthotic device.Without bracket invisible orthotic device on the basis of computer-aided design and processing, with the feature that it is stealthy, attractive in appearance, comfortable, receive the concern of numerous doctors and patient.In recent years without the development of bracket invisible orthotic device rapidly, it is rescued scope and is also constantly expanded.
The whole workflow of Invisible bracketless technique is: get tooth jaw formpiston or former, chromatography obtains digitized tooth mould, malocclusion computer-aided diagnosis, correcting process computer assisted design, correcting process each stage master mold designs, correcting process each stage master mold is processed, correcting process each stage appliance makes.Advantage without bracket invisible orthotic device has: (1) good looking appearance, comfortable wearing; (2) oral hygiene is easy to safeguard; (3) occur that oral cavity emergency case number of times is less; (4) the chair other operating time is relatively short.
At present, correct the translation amount of each stage tooth and amount of spin is more determine according to doctor's clinical experience, the difference due to individual tissue characteristics often causes to rescue active force in process excessive, makes patient produce pain.Therefore, by the active force system of invisible orthotic device and the research of action effect, orthodontist can be made to formulate more rationally effective therapeutic scheme, and designer also can design more perfect personalized seamless appliance.
Survey the most direct method of invisalign power and use force transducer exactly, force transducer is placed in the contact surface of tooth and appliance, measure extruding force between the two.Some scholar's research invisalign power has used foil gauge at present, force transducer etc., but because the Orthodontic force of stomatology invisalign is small, dental surface and invisible orthotic device contact area and contact gap tight, require high to the size of sensor, thickness and pliability in measuring process, directly accurately to measure invisalign power and be difficult to accomplish.
Summary of the invention
The object of the present invention is to provide a kind of seamless appliance Orthodontic force measuring method having coating thickness and compensate, the method is not only measured accurately, and simple, and implementation cost is low.
For achieving the above object, technical scheme of the present invention is: a kind of seamless appliance Orthodontic force measuring method having coating thickness and compensate, after acquisition original dental jaw digital model, described original dental jaw digital model reserves sensor space, namely remove and sensor coating thickness in dental surface relevant position to be moved, the space that shape adapts, namely coating thickness compensation is carried out, obtain the tooth jaw digital model of reserved sensor space, described original dental jaw digital model goes out target tooth jaw digital model according to rescuing conceptual design, then tooth jaw physical model and the target tooth jaw physical model of reserved sensor space is produced, described target tooth jaw physical model produces seamless appliance, sensor is arranged on the tooth jaw physical model of described reserved sensor space, then described seamless appliance is worn on the tooth jaw physical model of described reserved sensor space, and goes out Orthodontic force by sensor measurement.
Further, the above-mentioned seamless appliance Orthodontic force measuring method having coating thickness and compensate, comprises the steps:
Step S1, by 3 D laser scanning patient tooth jaw plaster model, obtains original dental jaw digital model;
Step S2 reserves sensor space on described original dental jaw digital model: that formulates according to doctor rescues scheme, utilize digitized forward engineering software to remove in described original dental jaw digital model dental surface to be moved relevant position and sensor coating thickness, space that shape is identical, obtain the tooth jaw digital model of reserved sensor space;
Step S3 obtains tooth jaw physical model: on described original dental jaw digital model, move tooth position to be rescued according to rescuing scheme, obtain target tooth jaw digital model, then the tooth jaw digital model of reserved sensor space and target tooth jaw digital model are imported rapidform machine, utilize Stereolithography technology to obtain tooth jaw physical model and the target tooth jaw physical model of reserved sensor space;
Step S4 utilizes vacuum forming technology to produce seamless appliance on described target tooth jaw physical model;
Step S5 by calorstat control temperature and humidity to simulate human body true oval environment;
Step S6 measures the Orthodontic force being applied to tooth by seamless appliance: after calibrating sensors, described sensor is fixed on the test point on the tooth jaw physical model surface of described reserved sensor space, connecting circuit, then described seamless appliance is correctly worn on the tooth jaw physical model of described reserved sensor space, is measured the Orthodontic force being applied to tooth by seamless appliance by described sensor in real time.
Further, described step S2 specifically comprises the steps:
The stickup situation of the sensor of step S201 needed for dynamometry, measures sensor coating thickness and overall dimensions;
Step S202, based on described original dental jaw digital model, digitized forward engineering software is designed the outline dimensional drawing of sensor;
The normal direction of the outline dimensional drawing of described sensor to this dental surface, on described original dental jaw digital model tooth to be moved, projects by step S203;
The patch of projection gained is moved the distance identical with sensor coating thickness along projecting direction by step S204, thus removes and sensor coating thickness, space that shape is identical at dental surface to be moved;
Step S205 filling cavity, obtains the tooth jaw digital model of reserved sensor space.
Further, described sensor is thin film single-point force transducer.
Further, the paste position of described sensor, selects in the tongue side of described original dental jaw digital model tooth to be moved or cheek side.
Further, reserved sensor space is that a shape, the degree of depth adapt with the overall dimensions of described sensor, coating thickness respectively, can embed space therebetween to make described sensor.
Further, sensor coating thickness comprises the thickness summation of silica gel piece, bio-medical glue and sensor.
Compared to prior art, the invention has the beneficial effects as follows in the measuring process for the seamless appliance Orthodontic force of stomatology, it is tight that seamless appliance wears contact gap on tooth surfaces, it is the stress that Tooth Movement amount adds the amount of movement of upper sensor adhered layer thickness that sensor is pasted onto the power that dental surface surveys, the inaccurate problem of the dynamometry caused, a kind of force measuring method having coating thickness and compensate is proposed, the method pastes the identical space of thickness at digitized tooth model surface removal and sensor, produce original dental jaw and the target tooth jaw three-dimensional entity model of reserved sensor space, on the corresponding facing of target dentognathic model, vacuum forming technology is adopted to produce seamless appliance, the original dental gnathode finally this seamless appliance being worn on reserved sensor space carries out the measurement of Orthodontic force, efficiently solve the inaccurate problem of measurement that sensor coating thickness brings, and measuring method is simple, cost is low, there is very strong practicality and wide application prospect.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the inventive method.
Fig. 2 is the schematic diagram of measuring system corresponding to the inventive method.
Detailed description of the invention
The present invention has the seamless appliance Orthodontic force measuring method that coating thickness compensates, after acquisition original dental jaw digital model, described original dental jaw digital model reserves sensor space, namely remove and sensor coating thickness in dental surface relevant position to be moved, the space that shape adapts, namely coating thickness compensation is carried out, obtain the tooth jaw digital model of reserved sensor space, described original dental jaw digital model goes out target tooth jaw digital model according to rescuing conceptual design, then tooth jaw physical model and the target tooth jaw physical model of reserved sensor space is produced respectively according to the tooth jaw digital model of described reserved sensor space and target tooth jaw digital model, described target tooth jaw physical model produces seamless appliance, sensor is arranged on the tooth jaw physical model of described reserved sensor space, then described seamless appliance is worn on the tooth jaw physical model of described reserved sensor space, and goes out Orthodontic force by sensor measurement.
Concrete, as shown in Figure 1, the above-mentioned seamless appliance Orthodontic force measuring method having coating thickness and compensate, comprises the steps:
Step S1, by 3 D laser scanning patient tooth jaw plaster model, obtains original dental jaw digital model.
Step S2 reserves sensor space on described original dental jaw digital model: that formulates according to doctor rescues scheme, utilize digitized forward engineering software to remove in described original dental jaw digital model dental surface to be moved relevant position and sensor coating thickness, space that shape is identical, after filling-up hole, obtain the tooth jaw digital model (Fig. 2) of reserved sensor space.Wherein, filling-up hole refers to, translational surface tri patch on original dental jaw digital model, certainly will produce cavity, therefore need filled in this hole and do smooth treatment after mobile on all-moving surface edge.Step S2 specifically comprises the steps:
The stickup situation of the sensor of step S201 needed for dynamometry, measures sensor coating thickness and overall dimensions.In the present embodiment, described sensor is thin film single-point force transducer.
Step S202, based on described original dental jaw digital model, digitized forward engineering software is designed the outline dimensional drawing of sensor.
The normal direction of the outline dimensional drawing of described sensor to this dental surface, on described original dental jaw digital model tooth to be moved, projects by step S203.In the present embodiment, the paste position of described sensor, selects in the tongue side of described original dental jaw digital model tooth to be moved or cheek side.
The patch of projection gained is moved the distance identical with sensor coating thickness along projecting direction by step S204, thus removes and sensor coating thickness, space that shape is identical at dental surface to be moved.Sensor coating thickness comprises the thickness summation of silica gel piece, bio-medical glue and sensor.
Step S205 filling cavity, obtains the tooth jaw digital model of reserved sensor space.Reserved sensor space is that a shape, the degree of depth adapt with the overall dimensions of described sensor, coating thickness respectively, can embed space therebetween to make described sensor.
Step S3 obtains tooth jaw physical model: on described original dental jaw digital model, move tooth position to be rescued according to rescuing scheme, obtain target tooth jaw digital model, then the tooth jaw digital model of reserved sensor space and target tooth jaw digital model are imported rapidform machine, utilize Stereolithography technology to obtain tooth jaw physical model and the target tooth jaw physical model of reserved sensor space;
Step S4 utilizes vacuum forming technology to produce seamless appliance on described target tooth jaw physical model.
Step S5 by calorstat control temperature and humidity to simulate human body true oval environment.
Step S6 measures the Orthodontic force being applied to tooth by seamless appliance: after calibrating sensors, described sensor is fixed on the test point on the tooth jaw physical model surface of described reserved sensor space, connecting circuit, obtains measuring system as shown in Figure 2.Then described seamless appliance is correctly worn on the tooth jaw physical model of described reserved sensor space, is measured the Orthodontic force being applied to tooth by seamless appliance by described sensor in real time.
Below in conjunction with a specific embodiment, the invention will be further described.
The present invention has the seamless appliance Orthodontic force measuring method that coating thickness compensates, and realizes seamless appliance Orthodontic force as follows and measures:
(1) tooth jaw three dimensional data collection.The tooth jaw physical model of the patient provided by odontologist, utilizes 3-dimensional digital Laser Scanning Equipment to obtain the digitized geometric model of patient's tooth jaw plaster model.
(2) on patient's original dental jaw digital model, sensor space is reserved.According to the individuation correcting scheme that doctor formulates, utilize forward engineering software to remove at digital detal cast dental surface to be moved and paste the identical patch space of thickness with sensor, after filling-up hole, obtain the original dental jaw digital model of reserved sensor space.
(2.1) the stickup situation of the thin film single-point force transducer needed for dynamometry, measures coating thickness and the sensor overall dimensions of sensor, designs the headspace of sensor based on this.
(2.2) based on original dental jaw digital model, forward engineering software is set up sketch plane, design the planar profile dimensional drawing of sensor.
(2.3) choose the facing curved surface tri patch of testing force tooth position, try to achieve this normal to a surface direction, the sensor outline plan dimensional drawing is projected towards facing direction to along normal direction, facing just obtains the outline dimensional drawing of sensor.
(2.4) according to sensor coating thickness, the sensor curved profile figure of gained that facing projects is moved corresponding distance along projecting direction, on facing, now occurs the outer shape of indent, this recessed area paste with sensor shared by space identical.
(2.5) fill up the cavity of above-mentioned model, the tooth jaw digital model of reserved sensor space can be obtained.
(3) acquisition of tooth jaw physical model.Original dental gnathode moves tooth position to be rescued according to scheme of rescuing and obtains target tooth jaw digital model, the original dental jaw digital model of reserved sensor space and target tooth jaw digital model are imported rapidform machine, utilizes Stereolithography technology to produce original dental jaw physical model and the target tooth jaw physical model of reserved sensor space under control of the computer.
(4) with target tooth jaw physical model for caster, utilize vacuum forming technology to produce appliance blank, wear requirement according to use, blank is processed and repairs make seamless appliance.
(5) sensor and test macro is selected.According to embodiment dental surface size to be measured, selection induction region is thin film single-point force transducer and the test macro thereof of diameter 1mm, and this test macro comprises thin film single-point force transducer, data acquisition processing circuit, data connecting line etc.Data acquisition processing circuit mainly comprises the communication module that operational amplifier, ADC transducer and data export.
(6) thin film single-point force transducer is calibrated.According to different loading amount, make F-R figure and F-1/R figure by pull and push dynamometer on thin film single-point force transducer, recalibration repeatedly, until F-1/R figure is in good linear relationship, stops calibration, ensures sensor accuracy.
(7) calorstat is utilized to simulate human oral cavity environment.Arrange in calorstat and control the temperature and humidity in anthropoid oral cavity, model being put into the seamless Orthodontic force that tooth tested by this calorstat.
(8) the miniature Orthodontic force being applied to tooth by seamless appliance is measured.Thin film single-point force transducer is fixed on the test point on the original dental jaw physical model surface of reserved sensor space, connecting circuit, above-mentioned seamless appliance is correctly worn on the original dental jaw physical model of reserved sensor space, measures the Orthodontic force being applied to tooth by seamless appliance in real time.
(8.1) paste silica gel piece at thin film single-point force transducer contact surface, with bio-medical glue, sensor is fixed in tooth jaw physical model pilot to be measured, realizes interlayer contact measurement, protection sensor.
(8.2) outfan of thin film single-point force transducer concatenation operation amplifying circuit, ADC change-over circuit successively, the communication module exported finally by data is connected on computer.
(8.3) seamless appliance is worn the original dental jaw physical model into reserved sensor space, require that seamless appliance is completely in place, now just can show Orthodontic force in real time on computers.
Be more than preferred embodiment of the present invention, all changes done according to technical solution of the present invention, when the function produced does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (7)
1. the seamless appliance Orthodontic force measuring method that there is coating thickness and compensate, it is characterized in that, after acquisition original dental jaw digital model, described original dental jaw digital model reserves sensor space, i.e. and sensor coating thickness reserved in dental surface relevant position to be moved, the space that shape adapts, namely coating thickness compensation is carried out, obtain the tooth jaw digital model of reserved sensor space, described original dental jaw digital model goes out target tooth jaw digital model according to rescuing conceptual design, then tooth jaw physical model and the target tooth jaw physical model of reserved sensor space is produced, described target tooth jaw physical model produces seamless appliance, sensor is arranged on the tooth jaw physical model of described reserved sensor space, then described seamless appliance is worn on the tooth jaw physical model of described reserved sensor space, and goes out Orthodontic force by sensor measurement.
2. a kind of seamless appliance Orthodontic force measuring method having coating thickness and compensate according to claim 1, is characterized in that, comprise the steps:
Step S1, by 3 D laser scanning patient tooth jaw plaster model, obtains original dental jaw digital model;
Step S2 reserves sensor space on described original dental jaw digital model: that formulates according to doctor rescues scheme, utilize digitized forward engineering software to reserve in described original dental jaw digital model dental surface to be moved relevant position and sensor coating thickness, space that shape is identical, obtain the tooth jaw digital model of reserved sensor space;
Step S3 obtains tooth jaw physical model: on described original dental jaw digital model, move tooth position to be rescued according to rescuing scheme, obtain target tooth jaw digital model, then the tooth jaw digital model of reserved sensor space and target tooth jaw digital model are imported rapidform machine, utilize Stereolithography technology to obtain tooth jaw physical model and the target tooth jaw physical model of reserved sensor space;
Step S4 utilizes vacuum forming technology to produce seamless appliance on described target tooth jaw physical model;
Step S5 by calorstat control temperature and humidity to simulate human body true oval environment;
Step S6 measures the Orthodontic force being applied to tooth by seamless appliance: after calibrating sensors, described sensor is fixed on the test point on the tooth jaw physical model surface of described reserved sensor space, connecting circuit, then described seamless appliance is correctly worn on the tooth jaw physical model of described reserved sensor space, is measured the Orthodontic force being applied to tooth by seamless appliance by described sensor in real time.
3. a kind of seamless appliance Orthodontic force measuring method having coating thickness and compensate according to claim 2, it is characterized in that, described step S2 specifically comprises the steps:
The stickup situation of the sensor of step S201 needed for dynamometry, measures sensor coating thickness and overall dimensions;
Step S202, based on described original dental jaw digital model, digitized forward engineering software is designed the outline dimensional drawing of sensor;
The normal direction of the outline dimensional drawing of described sensor to this dental surface, on described original dental jaw digital model tooth to be moved, projects by step S203;
The patch of projection gained is moved the distance identical with sensor coating thickness along projecting direction by step S204, thus reserves and sensor coating thickness, space that shape is identical at dental surface to be moved;
Step S205 filling cavity, obtains the tooth jaw digital model of reserved sensor space.
4. a kind of seamless appliance Orthodontic force measuring method having coating thickness and compensate according to claim 2, it is characterized in that, described sensor is thin film single-point force transducer.
5. a kind of seamless appliance Orthodontic force measuring method having coating thickness and compensate according to claim 2, is characterized in that, the paste position of described sensor, selects in the tongue side of described original dental jaw digital model tooth to be moved or cheek side.
6. a kind of seamless appliance Orthodontic force measuring method that there is coating thickness and compensate according to claim 2, it is characterized in that, reserved sensor space is that a shape, the degree of depth adapt with the overall dimensions of described sensor, coating thickness respectively, can embed space therebetween to make described sensor.
7. a kind of seamless appliance Orthodontic force measuring method having coating thickness and compensate according to claim 2, it is characterized in that, sensor coating thickness comprises the thickness summation of silica gel piece, bio-medical glue and sensor.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102015102995A1 (en) * | 2015-03-02 | 2016-09-08 | Work for Smile GmbH | Method for determining the need for orthodontic treatment, as well as devices |
| DE102015102992A1 (en) * | 2015-03-02 | 2016-09-08 | Work for Smile GmbH | Method for checking or determining the effect of orthodontic treatment, as well as devices |
| US10603137B2 (en) | 2015-08-31 | 2020-03-31 | Ormco Corporation | Orthodontic aligners and devices, methods, systems, and computer programs utilizing same |
| US10383705B2 (en) * | 2016-06-17 | 2019-08-20 | Align Technology, Inc. | Orthodontic appliance performance monitor |
| WO2017218947A1 (en) | 2016-06-17 | 2017-12-21 | Align Technology, Inc. | Intraoral appliances with sensing |
| WO2019118876A1 (en) | 2017-12-15 | 2019-06-20 | Align Technology, Inc. | Closed loop adaptive orthodontic treatment methods and apparatuses |
| CN112823761B (en) * | 2019-11-21 | 2022-03-01 | 西安博恩生物科技有限公司 | Orthodontic appliance forming process based on positive and negative pressure control |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066974A (en) * | 1991-05-23 | 1992-12-16 | 中国人民解放军第四军医大学口腔医院 | Microcomputerized dynamic tester |
| US6570654B2 (en) * | 1997-01-02 | 2003-05-27 | Lj Laboratories Llc | Apparatus and method for measuring optical characteristics of an object |
| WO2008083237A3 (en) * | 2006-12-27 | 2008-10-02 | Marc Lemchen | Method and system of determining and applying orthodontic forces dependent on bone density measurements |
| DE102008006595A1 (en) * | 2008-01-30 | 2009-08-06 | Gesellschaft zur Förderung von Medizin-, Bio- und Umwelttechnologien e.V. | Force intensity and position sensor for stomatologic diagnostics and therapy, has support pin fixed on upper jaw, where sensor is placed in housing in upper jaw and transmits intra-oral registry of lower jaw movement |
| CN202113184U (en) * | 2011-05-27 | 2012-01-18 | 东南大学 | Orthodontic force measuring device |
| KR101201176B1 (en) * | 2011-07-07 | 2012-11-13 | 경희대학교 산학협력단 | The orthodentic force measurement device |
-
2014
- 2014-08-11 CN CN201410392815.9A patent/CN104127253B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066974A (en) * | 1991-05-23 | 1992-12-16 | 中国人民解放军第四军医大学口腔医院 | Microcomputerized dynamic tester |
| US6570654B2 (en) * | 1997-01-02 | 2003-05-27 | Lj Laboratories Llc | Apparatus and method for measuring optical characteristics of an object |
| WO2008083237A3 (en) * | 2006-12-27 | 2008-10-02 | Marc Lemchen | Method and system of determining and applying orthodontic forces dependent on bone density measurements |
| DE102008006595A1 (en) * | 2008-01-30 | 2009-08-06 | Gesellschaft zur Förderung von Medizin-, Bio- und Umwelttechnologien e.V. | Force intensity and position sensor for stomatologic diagnostics and therapy, has support pin fixed on upper jaw, where sensor is placed in housing in upper jaw and transmits intra-oral registry of lower jaw movement |
| CN202113184U (en) * | 2011-05-27 | 2012-01-18 | 东南大学 | Orthodontic force measuring device |
| KR101201176B1 (en) * | 2011-07-07 | 2012-11-13 | 경희대학교 산학협력단 | The orthodentic force measurement device |
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