CN105686838A - Occlusal force measuring instrument and system - Google Patents
Occlusal force measuring instrument and system Download PDFInfo
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- CN105686838A CN105686838A CN201610206045.3A CN201610206045A CN105686838A CN 105686838 A CN105686838 A CN 105686838A CN 201610206045 A CN201610206045 A CN 201610206045A CN 105686838 A CN105686838 A CN 105686838A
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- gmatjpdumamics
- sensor
- bite
- measuring instrument
- groove
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/22—Ergometry; Measuring muscular strength or the force of a muscular blow
- A61B5/224—Measuring muscular strength
- A61B5/228—Measuring muscular strength of masticatory organs, e.g. detecting dental force
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Dentistry (AREA)
- Physics & Mathematics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Epidemiology (AREA)
- Pathology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- General Physics & Mathematics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses an occlusal force measuring instrument which comprises an occlusion mold. The occlusion mold comprises a body and a measuring end. The measuring end comprises two symmetrically-arranged cantilever supports. A sensor chip is arranged on at least one of the cantilever supports and connected with a sensor. The sensor is connected to a display terminal. A hemispheric convex occlusion portion is arranged on one side of the measuring end. A groove a preset distance away from the occlusion portion relative to one end of the body in a space mode in the direction of the measuring end is formed in the measuring end.
Description
Technical field
The present invention relates to gmatjpdumamics fields of measurement, in particular it relates to a kind of gmatjpdumamics measuring instrument and a kind of occlusion measurement system。
Background technology
Gmatjpdumamics is one of important symbol of reflection masticatory system health status, and its quantitative measurement research is always up stomatology and biomedical hot issue。Owing to human body mandibular movement system is lever construction: in occlusion process, temporomandibular joint is fulcrum, rise jaw flesh in ramus of mandible attachment place is that force, occlusion place are attached most importance to, so when occlusion, thin labial teeth stress stress of grinding one's teeth in sleep mechanics big, whole mandibular bone little, near fulcrum is distributed the feature presenting gradual change with the change of denture position。If the measurement of gmatjpdumamics cannot accurate positioning or closed on tooth and disturb, then can a small discrepancy leads to a great error。But gmatjpdumamics the more commonly used at present is measured and exactly be there is various weak point in accurate positioning。
In prior art, the disclosed a kind of gmatjpdumamics measuring instrument of patent CN204379289U as known, it includes occlusion mould, the front end of occlusion mould is provided with the measurement end of parallel flat suspension beam structure, measure end and include two symmetrically arranged pole brackets, pole bracket is provided with demarcation groove, one of them pole bracket is provided with sensor chip, sensor chip connects sensor, and sensor connects terminal display。In use procedure, its cannot precise positioning measure weak point as follows: first, flat cantilevered support structure does not meet the anatomical physiology of normal person's denture, it is impossible to avoid adjacent teeth。Lower jaw permanent teeth as shown in Figure 1, in normal dentition, each tooth close proximity, wherein and seamless, during upper lower tooth Guan Bi, all teeth are had an effect jointly, form the biteplane (including symmetrical central incisor, lateral incisor, canine tooth, frist premolar, the second premolars, first molar, second molar and third molar) closed。So, when using flat bracket to measure, often cannot accurately measure wherein certain tooth (closing on tooth often simultaneously to exert a force in this plane of mouth guard), cause that what measured value reflected is the gmatjpdumamics in certain region, measurement result poor specificity。If using curved design instead, then can avoid the contact of adjacent teeth, improving accuracy。Next, common slide-rule dial graticule also cannot ensure to measure the unification of position。As it is shown in figure 1, the bilateral tooth of physiological denture backward, has cusp from canine tooth (the 3rd)。As in figure 2 it is shown, tooth self composition does not only have very important thickness, width, also have 4 cusps (Fig. 2 shows 4 cusps on the downside of picture from two angles respectively, in respectively remote cheek sharp, near in cheek sharp, near in the tip of the tongue and remote in the tip of the tongue)。Even if generic linear labelling is placed under certain cusp and also extremely easily slides。Additionally oral cavity is the confined space closed after opening before, in actual measurement, when mouth guard is stretched into molar region (first molar in Fig. 1, second molar and the third molar) at subject oral cavity rear by implementer, stopped by lip and cheek and tongue tissue, it tends to be difficult under direct-view, whether observe the occlusal position of correspondence of grinding one's teeth in sleep in mark；Even if can place under direct-view, when advising experimenter to be engaged dynamometry, when experimenter has an effect, muscle affects, upperlip tends to Guan Bi, and these all can hinder the observation of tester again, or causes that occlusion test board shifts again。Above various reasons causes that location is inaccurate, the actual reliability being difficult to ensure that measurement and repeatability。
Again, the position of gmatjpdumamics measuring instrument knuckle is right-angle design, comparatively sharp, and the oral mucosa of gauger is easily damaged by the corner that its metallic weapon is sharp-pointed。
Summary of the invention
The technical solution realizing the object of the invention is: a kind of gmatjpdumamics measuring instrument, including occlusion mould, described occlusion mould includes body, measures end, described measurement end includes two symmetrically arranged pole brackets, at least one pole bracket is provided with sensor chip, described sensor chip connects sensor, and described sensor is connected to display terminal；It is provided with the bite of hemispherical convex surface in the side of described measurement end, described measurement end is provided with the groove spaced apart relative to one end of described body with described bite within a predetermined distance along the direction of described measurement end。
Further, the width of described bite is 10mm。
Further, described groove has the anatomical structure agreed with mutually with cusp of grinding one's teeth in sleep, can make to grind one's teeth in sleep and " bite " measurement plate (upper and lower cusp is stuck in groove) when occlusion is had an effect, groove is of a size of 3mm along measuring extreme direction, described groove along with the width being smaller in size than described bite measuring the vertical direction of end, described predetermined distance is middle part and the described bite distance relative to one end of described body of groove, and this distance is 5mm。
Further, being provided with transition part between described main body and described measurement end, described transition part is arc surfaced。
Further, described sensor chip arranges the medial surface of described pole bracket。
Further, described body is provided with the sensor accommodation chamber holding described sensor in the one end away from described gmatjpdumamics。
Further, described sensor is resistance strain type sensor, and described sensor chip is resistance strain gage。
The technical solution realizing another object of the present invention is: a kind of occlusion force measuring system, including above-mentioned gmatjpdumamics measuring instrument, also include control system, the pole bracket deformation quantity formed at the gmatjpdumamics of bite applying is sensed by sensor chip, deformation quantity is converted to signal of telecommunication transmission to control system by sensor, and the described signal of telecommunication is shown in terminal display by the form that can show with terminal display after control signal。
Further, described control system includes analog/digital conversion amplifier, AVR processor, digital electric signal after being changed by analog/digital conversion amplifier from the gmatjpdumamics signal of telecommunication that gmatjpdumamics measuring instrument is surveyed by sensor chip is transferred line by data and delivers to described AVR processor, digital electric signal is recorded the size of gained gmatjpdumamics by described AVR processor through formula scales, and shows at terminal display。
Having the beneficial effect that of this programme
(1) in order to prevent contiguous upper lower tooth to sting in bite simultaneously, thus limiting the width of bite, and the width of bite is made to be not more than 10mm。Meanwhile, optimizing the shape of bite in prior art further, bite 3 is set to hemispherical convex surface, thus being more easily accessible to a pair tooth measuring, being also easier to the interference avoiding facing tooth when occlusion。
(2) dens in dente physiological groove of the present invention meets physiology anatomical features of grinding one's teeth in sleep, its special construction can make to grind one's teeth in sleep and " bite " measurement plate (upper and lower cusp is stuck in groove) when occlusion is had an effect, so not easily shifting, placement when being both convenient for measuring, location, it is not easy to when upper lower tooth makes power slide, improves the accuracy measured。The telltale mark of grooved, than linear type labelling, equally all has the effect of calibration instrument, but on the accuracy when measuring, is provided with bigger advantage。In order to be further ensured that the accuracy of location, the size of groove and groove also need strictly to determine further to the distance of bite, making groove be preferably dimensioned to be 3mm along measuring end extension, groove is preferably 5mm along the distance of the middle part distance that bite extends with the low order end of bite。
(3) in order to avoid the oral mucosa of gauger is damaged by the angle that metallic weapon is sharp-pointed, transition part is set to designed arc-shaped appearance。
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from description, or understand by implementing the present invention。
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, is used for together with embodiments of the present invention explaining the present invention, is not intended that limitation of the present invention。In the accompanying drawings:
Fig. 1 illustrates the schematic diagram of the physiological denture of the mankind；
Fig. 2 illustrates the schematic diagram of right maxillary first molar buccal surface, first molar lingual surface；
Fig. 3 is the structural representation of gmatjpdumamics measuring instrument；
Fig. 4 is the top view of gmatjpdumamics measuring instrument；
Fig. 5 is the sectional view in gmatjpdumamics measuring instrument A-A direction in the diagram；
Fig. 6 is the structure connection figure of occlusion force measuring system。
In conjunction with accompanying drawing, in the embodiment of the present invention, accompanying drawing labelling is as follows:
1, occlusion mould；2, end is measured；3, bite；4, groove；5, transition part；6, the first through hole；7, sensor chip；8, the second through hole；9, sensor accommodation chamber；10, terminal display。
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention。
As seen in figures 3-6, gmatjpdumamics measuring instrument has main body 1, measurement end 2 and the transition part 5 between main body 1 and measurement end 2。Measure end 2 for U-shaped overarm wall construction, measure end 2 and include two symmetrically arranged pole brackets 21, at least one pole bracket 21 is provided with sensor chip 7。Being internally provided with sensor accommodation chamber 9 on the left of main body 1, sensor accommodation chamber 9 is provided with sensor。The through hole of similar ellipse then it is provided with on the right side of main body 1。Additionally, the one end measuring end 2 is provided with bite 3。Specifically, this bite 3 has preferred width, and the Breadth Maximum of bite 3 is 10mm。If parallel bite 3 is too wide, if needing to measure the occlusion force value of some point, experimenter often has contiguous upper and lower tooth to be engaged upper bite once stinging simultaneously, so can cause that measurement cannot be very accurate, the result measured usually near the common biting force of several teeth generation。Therefore, calculate through development test and simulation, show that bite Breadth Maximum is 10mm。Additionally, for the accuracy ensureing measurement and positioning。Due to material with by the limitation of force intensity, the narrowing or there is certain limit of mouth guard。When measuring lower teeth on a pair and participating in being engaged, face the tooth relation owing to being positioned adjacent to, be also very easy to bite in the bite measuring end of plane。Therefore, this bite 3 is set to hemispherical convex surface, thus being more easily accessible to a pair tooth measuring, is also easier to the interference avoiding facing tooth when occlusion。
It addition, in order to make to be more accurately located the position of dental articulation, be provided with groove 4 in the position near bite, when measuring, such as by fixing grind one's teeth in sleep near in cheek point (one of them cusp) be standard, during measurement, cusp is bitten in groove 4, this ensures that theres the accuracy of location。Therefore to enable to the measurement of gmatjpdumamics more accurate in the existence of groove 4。Specifically, groove 4 also can affect the accuracy being engaged force measurement with the distance of bite 3, and groove 4 is excessive with the distance of bite 3 too small all can cause that cusp cannot fall in groove 4 exactly。Preferably, extending along bite 3 of groove 4 is preferably dimensioned to be 3mm, and groove 4 is preferably 5mm along the distance of the low order end of the middle part distance bite that bite 3 extends。More specifically, groove 4 along with the width being smaller in size than bite 3 measuring the vertical direction of end 2。
Further, transition part 5 designs for cambered surface, thus avoiding metallic weapon sharp-pointed angle, the oral mucosa of gauger is damaged。Further, the sidepiece (i.e. the outside of sensor accommodation chamber) of main body 1 is provided with the first through hole 6, and the connecting line of sensor accommodation chamber 9 can pass through this first through hole 6 and be connected with terminal display 11。Further, the second through hole 8 it is provided with between sensor accommodation chamber 9 and class ellipse hole, so that the sensor being arranged on sensor pocket intracavity can be connected with the sensor chip 7 being arranged on inside pole bracket 21, so that sensor chip 7, sensor, terminal display 11 realize connecting。Further, the signal that sensor chip 7 senses has to pass through control system 10 and could finally show at terminal display 11。Specifically, sensor is resistance strain type sensor, and the signal that sensor senses, after control system 10, represents the information relevant with gmatjpdumamics at terminal display 11 with the form of digital quantity or picture。Again specifically, sensor chip 7 is resistance strain gage。Again specifically, control system 10 includes analog/digital conversion amplifier, AVR processor。
In measurement process, the bite measuring about 2 two symmetrical pole brackets 21 of end is carried out occlusion 3 by the upper lower tooth of experimenter, in occlusion process, cusp is made accurately to fall in groove, realize snap-in location, the vertical pressure that tooth applies in bite afterwards makes the pole bracket 21 measuring end produce a range of deformation, it is arranged on the sensor chip 7 (i.e. resistance strain gage) inside pole bracket 21 by measuring deflection produced by pole bracket 21, deflection is changed by high-precision analog/digital conversion amplifier by sensor with the signal of telecommunication, digital electric signal after conversion transfers line by data and delivers in AVR processor, AVR processor by digital electric signal through formula scales thus recording the size of gained gmatjpdumamics, and shown by terminal display 11。
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although the present invention being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature carries out equivalent replacement。All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention。
Claims (9)
1. a gmatjpdumamics measuring instrument, including occlusion mould, described occlusion mould includes body, measures end, described measurement end includes two symmetrically arranged pole brackets, at least one pole bracket is provided with sensor chip, described sensor chip connects sensor, and described sensor is connected to display terminal；It is characterized in that, be provided with the bite of hemispherical convex surface in the side of described measurement end, described measurement end is provided with the groove spaced apart relative to one end of described body with described bite within a predetermined distance along the direction of described measurement end。
2. gmatjpdumamics measuring instrument according to claim 1, it is characterised in that the width of described bite is 10mm。
3. gmatjpdumamics measuring instrument according to claim 1, it is characterized in that, described groove has the anatomical structure agreed with mutually with cusp of grinding one's teeth in sleep, can make to grind one's teeth in sleep and bite measurement plate when occlusion is had an effect, and make upper and lower cusp be stuck in groove, described groove is of a size of 3mm along measuring extreme direction, described groove along with the width being smaller in size than described bite measuring the vertical direction of end, described predetermined distance is middle part and the described bite distance relative to one end of described body of groove, and this distance is 5mm。
4. gmatjpdumamics measuring instrument according to claim 1, it is characterised in that be provided with transition part between described main body and described measurement end, described transition part is arc surfaced。
5. gmatjpdumamics measuring instrument according to claim 1, it is characterised in that described sensor chip arranges the medial surface of described pole bracket。
6. gmatjpdumamics measuring instrument according to claim 1, it is characterised in that described body is provided with the sensor accommodation chamber holding described sensor in the one end away from described gmatjpdumamics。
7. gmatjpdumamics measuring instrument according to claim 1, it is characterised in that described sensor is resistance strain type sensor, described sensor chip is resistance strain gage。
8. an occlusion force measuring system, it is characterized in that, including the gmatjpdumamics measuring instrument described in any one of claim 1-7, also include control system, the pole bracket deformation quantity formed at the gmatjpdumamics of bite applying is sensed by sensor chip, deformation quantity is converted to signal of telecommunication transmission to control system by sensor, and the described signal of telecommunication is shown in terminal display by the form that can show with terminal display after control signal。
9. occlusion force measuring system according to claim 8, described control system includes analog/digital conversion amplifier, AVR processor, digital electric signal after being changed by analog/digital conversion amplifier from the gmatjpdumamics signal of telecommunication that gmatjpdumamics measuring instrument is surveyed by sensor chip is transferred line by data and delivers to described AVR processor, digital electric signal is recorded the size of gained gmatjpdumamics by described AVR processor through formula scales, and shows at terminal display。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610206045.3A CN105686838A (en) | 2016-04-05 | 2016-04-05 | Occlusal force measuring instrument and system |
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| CN201610206045.3A CN105686838A (en) | 2016-04-05 | 2016-04-05 | Occlusal force measuring instrument and system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404231A (en) * | 2016-10-14 | 2017-02-15 | 浙江工业大学 | Personalized lower jawbone biomechanics model stress measurement system |
| CN107260188A (en) * | 2017-07-19 | 2017-10-20 | 东南大学 | A kind of multi-direction occlusion force measuring device based on force snesor |
| CN108524027A (en) * | 2018-04-13 | 2018-09-14 | 康晓宁 | A kind of sensor-based system and method for detection 3D printing tooth-implanting snap-in force |
| KR20200071017A (en) * | 2018-12-10 | 2020-06-18 | 고려대학교 산학협력단 | Masticatory diagnostics device using gummy bear |
| CN113842146A (en) * | 2021-09-06 | 2021-12-28 | 张贞 | Single-pair tooth occlusal force measuring device |
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| CN106404231A (en) * | 2016-10-14 | 2017-02-15 | 浙江工业大学 | Personalized lower jawbone biomechanics model stress measurement system |
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| CN108524027A (en) * | 2018-04-13 | 2018-09-14 | 康晓宁 | A kind of sensor-based system and method for detection 3D printing tooth-implanting snap-in force |
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| CN113842146A (en) * | 2021-09-06 | 2021-12-28 | 张贞 | Single-pair tooth occlusal force measuring device |
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