CN105455856B - Plaque bio-film intraoral model in situ and preparation method thereof - Google Patents
Plaque bio-film intraoral model in situ and preparation method thereof Download PDFInfo
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- CN105455856B CN105455856B CN201510998594.4A CN201510998594A CN105455856B CN 105455856 B CN105455856 B CN 105455856B CN 201510998594 A CN201510998594 A CN 201510998594A CN 105455856 B CN105455856 B CN 105455856B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
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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
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Abstract
The invention discloses a kind of plaque bio-film intraoral model in situ and preparation method thereof, it has hard retainer, tooth and gum mould shape are set on hard retainer, circular tooth piece or dummy material to be studied, hard retainer is pressed at the tooth mould shape of hard maintenance external surface to be made up of upper jaw retainer and lower jaw retainer.Its preparation method comprises the following steps：Produce lower jaw working model；Recondition model；The fixation of tooth piece and dummy circular piece；Alginate material covers；Using hard retainer of the film laminator compacting with circular piece；Circular tooth piece and the polishing windowing of dummy surface；Shape at the beginning of hard retainer is repaired as plaque bio-film intraoral model in situ.The present invention solves existing for known technology insufficient, thoroughly avoids participating in the volunteer's injury of teeth studied, and makes without tooth to be ached sense by researcher.
Description
Technical field
The present invention relates to the plaque bio-film intraoral model in situ used in oral cavity, is a kind of research Oral health behaviours
Intraoral model and preparation method thereof.
Background technology
Bacterial plaque is a kind of typical bacterial biof iotalm, be the attaching to the soft of facing or dummy surface of matrix parcel and
The bacillary colony of non-mineralising, it can not be washed away by water or gargle, bacterium is sticked and given birth to together with this unique texture of biomembrane
It is long, in bacterial plaque microbial state treatment not only with the height correlation such as common mouth disease such as dental caries, periodontitis, oral mucosal disease,
Also it is proved simultaneously relevant with some systemic diseases.Therefore, for the research of oral cavity facing or dummy surface bacterial plaque
Have for quite a long time.The method of the intraoral bacterial plaque of tradition research is more using the method for scraping, but this method is often
The integrality of its structure is destroyed, with the proposition of plaque bio-film concept, many scholars establish the device of simulation Human Oral Cavity,
Such as artificial oral-cavity model.However, external plaque bio membrane modle, can only simple simulating oral cavity environment, can not substitute true
Real oral environment.Then scholars start oneself design device, collect bacterial plaque.Current most device be by tooth piece,
Sheet glass etc. is attached on the devices such as the resin retainer of oral cavity palatine to collect Dental plaque biofilm.The deficiency of these devices exists
In the real structure that can not accurately reflect bacterial plaque of tooth surface.The oral cavity of the mankind is an extremely complex ecosystem, different portions
The bacterium composition at the positions such as position such as facing, palatine, tongue, cheek side mucous membrane is what there were significant differences, so, only by tooth piece, and
Dummy sequin navigates to dental surface this microhabitat, could really reflect the Nomenclature Composition and Structure of Complexes of bacterial plaque.
The content of the invention
It is an object of the invention to provide a kind of plaque bio-film intraoral model in situ and preparation method thereof, makes known in its solution
It is insufficient existing for technology, it can really reflect the structure and composition of intraoral bacterial plaque, thoroughly avoid injury of teeth, and make to be studied
Person aches sense without tooth.
The present invention to achieve the above object, is achieved through the following technical solutions：Plaque bio-film intraoral model in situ, it has
Two hard retainers, tooth and gum mould shape are set on hard retainer, pressed at the tooth mould shape of hard maintenance external surface
Circular tooth piece or dummy material are closed, hard retainer is made up of upper jaw retainer and lower jaw retainer, and upper jaw retainer is with
The closing of jaw retainer cut end is integral, and upper jaw retainer and lower jaw retainer gum end are in open-like shape, and rear end terminates in last mill
Tooth it is remote in.Maxillary teeth surface modes shape is pressed with upper jaw retainer, mandibular teeth surface modes shape is pressed with lower jaw retainer.
The preparation method of described plaque bio-film intraoral model in situ, comprises the following steps：
1. produce upper lower jaw working model by complete denture requirement；
2. recondition model：After the occluding relation of checking work model, by upper lower jaw working model bottom surface be trimmed to
Jaw plane is parallel, then overlaps upper lower jaw working model according to occluding relation, makes the rear wall of lower jaw working model seat same
In one plane；
3. the circular denticle piece polished or the different materials dummy circular piece to be studied are ready to, utilization is medical
Dental surface to be studied is fixed on after wax disk(-sc) heating.Tooth piece and dummy circular piece thickness are 0.5mm, a diameter of 3-5mm.
4. tune mixes dental alginate material, one layer is gently covered in the tooth piece and dummy circular piece surface fixed,
Next step is carried out after its solidification.
5. using dentistry film laminator (vacuum forming machine) compacting hard retainer：The working model of the upper jaw or lower jaw is placed
In container on film laminator, the stainless steel grains of sand will be paved with around model, the height of the grains of sand with the tooth of exposed working model and
Vestibular ditch is standard, and then the thick hard pressuring film plates of 1.0mm are placed on to front end and the fixation of film laminator, make the upper jaw or lower jaw work
Make the front end that the incisor on model is in film laminator, after starting film laminator, hard pressuring film plate is heated at 90-150 DEG C first
The 30-60 seconds make its softening, and then the hard pressuring film plate of softening is depressed on the incisor of the upper jaw or lower jaw working model or is depressed into
On the incisor and gum of jaw or lower jaw working model, after film laminator vacuumizes, pressuring film plate automatically disengages the upper jaw or lower jaw Working mould
Type, the first shape of lower jaw hard retainer in formation；
6. expose circular tooth piece and dummy circular piece：The hard on circular piece surface is consolidated using dentistry dedicated slow mobile phone
Position body polishing windowing, repairs sharpened edge, removes the alginate material on circular piece surface.
7. shape at the beginning of hard retainer is repaired：Carried using dentistry dedicated slow mobile phone at the beginning of taking upper lower jaw hard retainer
All teeth in shape, and covering to 1.8-2.2 millimeters on gum edge, trailing edge be located at last grind one's teeth in sleep it is remote in, shearing redundance
Sanding and polishing afterwards, the upper lower jaw hard retainer with circular piece, plaque bio-film intraoral model as in situ is made.
The advantage of the invention is that：Plaque bio-film intraoral model in situ of the present invention, due to devising tooth mould
The hard retainer of type, make model and by the conformability very good of researcher's tooth, maintenance is accurate, thoroughly avoids easy during use
The phenomenon to come off, good retention effect is reached, any discomfort sense such as has not been ached by rear tooth from researcher's morning, without any
Adverse reaction, is worn that the foreign body sensation of used time is small, and comfort is good by researcher.Because intraoral model of the present invention is by circular tooth piece and reparation
Body disk is seated in hard retainer, is close to dental surface, can preferably reflect dental surface plaque bio-film structure and
Composition, without the interference by other position microorganisms of oral cavity and influences.
The plaque bio-film intraoral model in situ prepared with the inventive method, shaping is accurate, and makes retainer and facing knot
It is accurate to be pressed at conjunction, error free, further reduces foreign body sensation to user, further increases comfort etc..
Brief description of the drawings
Accompanying drawing 1 is schematic structural view of the invention；
Accompanying drawing 2 is the overlooking the structure diagram of accompanying drawing 1；
Accompanying drawing 3 is A-A cross section structure diagrams in accompanying drawing 1；
Accompanying drawing 4 is the state diagram being worn over intraoral model of the present invention on tooth model.
Embodiment
The structure of present invention plaque bio-film intraoral model in situ is shown in accompanying drawing 1- accompanying drawings 4,1 is hard maintenance in figure
Body, sets tooth and gum mould shape on hard retainer 1, the circular tooth of pressing at the tooth mould shape of hard retainer (1) outer surface
Piece or dummy material 2.Hard retainer 1 is made up of upper jaw retainer 3 and lower jaw retainer 4, and upper jaw retainer 3 and lower jaw are consolidated
The position cut end of body 4 closing is integral, and upper jaw retainer 3 and the gum end of lower jaw retainer 4 are in open-like shape, and end reaches last and ground one's teeth in sleep
It is remote in.Maxillary teeth surface modes shape is pressed with upper jaw retainer 3, mandibular teeth surface modes shape is pressed with lower jaw retainer 4.Figure
In 5 be upper jaw working model, 6 be lower jaw working model.
The thickness of upper jaw retainer 3 and lower jaw retainer 4 of the present invention is that 0.5-0.8 millimeters are preferred scheme, energy
Enough on the premise of foreign body sensation is reduced, the intraoral model is set to be bonded closely with by researcher's tooth, and reach and preferably use the longevity
Life.
Incisor and gum mould shape are pressed with upper jaw retainer 3 and lower jaw retainer 4 of the present invention, further to increase
The stability of retainer, and further increase is worn with comfort during model.
The preparation method of the above-mentioned plaque bio-film intraoral model in situ of the present invention, comprises the following steps：
1. produce upper lower jaw working model by complete denture requirement；
2. recondition model：After the occluding relation of checking work model, by upper lower jaw working model bottom surface be trimmed to
Jaw plane is parallel, then overlaps upper lower jaw working model according to occluding relation, makes the rear wall of lower jaw working model seat same
In one plane；
3. the circular denticle piece polished or the different materials dummy circular piece to be studied are ready to, utilization is medical
Dental surface to be studied is fixed on after wax disk(-sc) heating.Tooth piece and dummy circular piece thickness are 0.5mm, a diameter of 3-5mm.
4. tune mixes dental alginate material, one layer is gently covered in the tooth piece and dummy circular piece surface fixed,
Next step is carried out after its solidification.
5. using dentistry film laminator (vacuum forming machine) compacting hard retainer：The working model of the upper jaw or lower jaw is placed
In container on film laminator, the stainless steel grains of sand will be paved with around model, the height of the grains of sand with the tooth of exposed working model and
Vestibular ditch is standard, and then the thick hard pressuring film plates of 1.0mm are placed on to front end and the fixation of film laminator, make the upper jaw or lower jaw work
Make the front end that the incisor on model is in film laminator, after starting film laminator, hard pressuring film plate is heated at 90-150 DEG C first
The 30-60 seconds make its softening, and then the hard pressuring film plate of softening is depressed on the incisor of the upper jaw or lower jaw working model or is depressed into
On the incisor and gum of jaw or lower jaw working model, after film laminator vacuumizes, pressuring film plate automatically disengages the upper jaw or lower jaw Working mould
Type, the first shape of lower jaw hard retainer in formation；
6. expose circular tooth piece and dummy circular piece：The hard on circular piece surface is consolidated using dentistry dedicated slow mobile phone
Position body polishing windowing, repairs sharpened edge, removes the alginate material on circular piece surface.
7. shape at the beginning of hard retainer is repaired：Carried using dentistry dedicated slow mobile phone at the beginning of taking upper lower jaw hard retainer
All teeth in shape, and covering to 1.8-2.2 millimeters on gum edge, trailing edge be located at last grind one's teeth in sleep it is remote in, shearing redundance
Sanding and polishing afterwards, the upper lower jaw hard retainer with circular piece, plaque bio-film intraoral model as in situ is made.
The film laminator used in the preparation method of plaque bio-film intraoral model in situ of the present invention, can manufactured
In be further ensured that the accurate structural and shape of model, film laminator is produced by love Coulter Corp of Germany, and its model full name is：
Erkoform-RVE type film laminators.The major parameter of film laminator：Evacuated pressure is 0.8pa, power 340W, uses diaphragm diameter
120 millimeters.
Hard retainer in plaque bio-film intraoral model in situ of the present invention and preparation method thereof is using medical
Transparent membrane makes, and the matrix thickness is 1.0 millimeters, and tooth piece uses after using the cleaved polishing of in vitro enamel, and dummy is small
Disk can select dental body filled material to be studied as needed, and tune is mixed, and polishing, be used after polishing.Dentistry of the present invention
Dedicated slow mobile phone, produced by Japanese NSK companies, model：1S-205,22000 revs/min of rotating speed.
Claims (4)
1. plaque bio-film intraoral model in situ, it is characterised in that：It has hard retainer（1）, hard retainer（1）Upper setting
Tooth and gum mould shape, hard retainer（1）Circular tooth piece or dummy material are pressed at the tooth mould shape of outer surface（2）, firmly
Matter retainer（1）By upper jaw retainer（3）With lower jaw retainer（4）Composition, upper jaw retainer（3）With lower jaw retainer（4）Cut
End seal is closed integrally, upper jaw retainer（3）With lower jaw retainer（4）Gum end is in open-like shape, upper jaw retainer（3）On be pressed with the upper jaw
Dental surface mould shape, lower jaw retainer（4）On be pressed with mandibular teeth surface modes shape；
The preparation method of the plaque bio-film intraoral model in situ comprises the following steps：
1. produce upper lower jaw working model by complete denture requirement；
2. recondition model：After the occluding relation of checking work model, upper lower jaw working model bottom surface is trimmed to and put down with jaw
Face is parallel, then overlaps upper lower jaw working model according to occluding relation, makes the rear wall of lower jaw working model seat same flat
On face；
3. the circular denticle piece polished or the different materials dummy circular piece to be studied are ready to, medical wax disk(-sc) is utilized
Dental surface to be studied is fixed on after heating, circular tooth piece and dummy circular piece thickness are 0.5mm, a diameter of 3-5mm；
4. tune mixes dental alginate material, one layer is gently covered in the tooth piece and dummy circular piece surface fixed, treats it
Next step is carried out after solidification；
5. using dentistry film laminator compacting hard retainer：The container working model of the upper jaw or lower jaw being placed on film laminator
In, the stainless steel grains of sand will be paved with around model, the height of the grains of sand is using the tooth of exposed working model and vestibular ditch as standard, then
The thick hard pressuring film plates of 1.0mm are placed on to front end and the fixation of film laminator, made at the incisor on the upper jaw or lower jaw working model
In the front end of film laminator, after starting film laminator, heating at 90-150 DEG C the 30-60 seconds first to hard pressuring film plate makes its softening,
Then the hard pressuring film plate of softening is depressed on the incisor of the upper jaw or lower jaw working model or is depressed into the upper jaw or lower jaw working model
Incisor and gum on, after film laminator vacuumizes, pressuring film plate automatically disengages the upper jaw or lower jaw working model, lower jaw hard in formation
The first shape of retainer；
6. expose circular tooth piece and dummy circular piece：Using dentistry dedicated slow mobile phone by the hard retainer on circular piece surface
Polishing windowing, repairs sharpened edge, removes the alginate material on circular piece surface；
7. shape at the beginning of hard retainer is repaired：At the beginning of upper lower jaw hard retainer being obtained using dentistry dedicated slow mobile phone in shape
All teeth, and covering to 1.8-2.2 millimeters on gum edge, trailing edge be located at last grind one's teeth in sleep it is remote in, beaten after shearing redundance
Grinding and polishing light, the upper lower jaw hard retainer with circular piece, plaque bio-film intraoral model as in situ is made.
2. plaque bio-film intraoral model in situ according to claim 1, it is characterised in that：Upper jaw retainer（3）With under
Jaw retainer（4）Thickness be 0.5-0.8 millimeters.
3. plaque bio-film intraoral model in situ according to claim 1, it is characterised in that：Described dummy material
（2）For circular piece, circular tooth piece and dummy circular piece thickness are 0.5mm, a diameter of 3-5mm.
4. the preparation method of the plaque bio-film intraoral model in situ described in claim 1,2 or 3 any one, it is characterised in that：
Comprise the following steps：
1. produce upper lower jaw working model by complete denture requirement；
2. recondition model：After the occluding relation of checking work model, upper lower jaw working model bottom surface is trimmed to and put down with jaw
Face is parallel, then overlaps upper lower jaw working model according to occluding relation, makes the rear wall of lower jaw working model seat same flat
On face；
3. the circular denticle piece polished or the different materials dummy circular piece to be studied are ready to, medical wax disk(-sc) is utilized
Dental surface to be studied is fixed on after heating, circular tooth piece and dummy circular piece thickness are 0.5mm, a diameter of 3-5mm；
4. tune mixes dental alginate material, one layer is gently covered in the tooth piece and dummy circular piece surface fixed, treats it
Next step is carried out after solidification；
5. using dentistry film laminator compacting hard retainer：The container working model of the upper jaw or lower jaw being placed on film laminator
In, the stainless steel grains of sand will be paved with around model, the height of the grains of sand is using the tooth of exposed working model and vestibular ditch as standard, then
The thick hard pressuring film plates of 1.0mm are placed on to front end and the fixation of film laminator, made at the incisor on the upper jaw or lower jaw working model
In the front end of film laminator, after starting film laminator, heating at 90-150 DEG C the 30-60 seconds first to hard pressuring film plate makes its softening,
Then the hard pressuring film plate of softening is depressed on the incisor of the upper jaw or lower jaw working model or is depressed into the upper jaw or lower jaw working model
Incisor and gum on, after film laminator vacuumizes, pressuring film plate automatically disengages the upper jaw or lower jaw working model, lower jaw hard in formation
The first shape of retainer；
6. expose circular tooth piece and dummy circular piece：Using dentistry dedicated slow mobile phone by the hard retainer on circular piece surface
Polishing windowing, repairs sharpened edge, removes the alginate material on circular piece surface；
7. shape at the beginning of hard retainer is repaired：Carried using dentistry dedicated slow mobile phone at the beginning of taking upper lower jaw hard retainer in shape
All teeth, and covering to 1.8-2.2 millimeters on gum edge, trailing edge be located at last grind one's teeth in sleep it is remote in, beaten after shearing redundance
Grinding and polishing light, the upper lower jaw hard retainer with circular piece, plaque bio-film intraoral model as in situ is made.
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| CN201510998594.4A CN105455856B (en) | 2015-12-26 | 2015-12-26 | Plaque bio-film intraoral model in situ and preparation method thereof |
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| CN105455856A CN105455856A (en) | 2016-04-06 |
| CN105455856B true CN105455856B (en) | 2018-01-26 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102048606A (en) * | 2011-01-24 | 2011-05-11 | 山东大学 | Mouth breathing corrector and preparation method thereof |
| CN201834908U (en) * | 2010-08-24 | 2011-05-18 | 好维股份有限公司 | Flowing chamber of artificial oral cavity model for biomembrane culture |
| CN103505299A (en) * | 2013-09-26 | 2014-01-15 | 四川大学 | Oral cavity in-site dental plaque collection device |
| CN203873909U (en) * | 2014-05-26 | 2014-10-15 | 李博 | Multifunctional periodontal disease therapeutic equipment |
| CN104306079A (en) * | 2013-10-28 | 2015-01-28 | 四川大学 | Dental plaque biofilm intraoral experimental device and manufacturing method |
| CN205433754U (en) * | 2015-12-26 | 2016-08-10 | 浙江大学 | Normal position plaque biomembrane mouth inner model |
-
2015
- 2015-12-26 CN CN201510998594.4A patent/CN105455856B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201834908U (en) * | 2010-08-24 | 2011-05-18 | 好维股份有限公司 | Flowing chamber of artificial oral cavity model for biomembrane culture |
| CN102048606A (en) * | 2011-01-24 | 2011-05-11 | 山东大学 | Mouth breathing corrector and preparation method thereof |
| CN103505299A (en) * | 2013-09-26 | 2014-01-15 | 四川大学 | Oral cavity in-site dental plaque collection device |
| CN104306079A (en) * | 2013-10-28 | 2015-01-28 | 四川大学 | Dental plaque biofilm intraoral experimental device and manufacturing method |
| CN203873909U (en) * | 2014-05-26 | 2014-10-15 | 李博 | Multifunctional periodontal disease therapeutic equipment |
| CN205433754U (en) * | 2015-12-26 | 2016-08-10 | 浙江大学 | Normal position plaque biomembrane mouth inner model |
Non-Patent Citations (1)
| Title |
|---|
| "口腔细菌在渗透树脂表面动态粘附的SEM研究";陈吉俊;《中国优秀硕士学位论文全文数据库 医药卫生科技辑》;20120115(第01期);"方法"部分 * |
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