CN205758742U - A kind of expansion arcuate activator for correcting II class misfit - Google Patents
A kind of expansion arcuate activator for correcting II class misfit Download PDFInfo
- Publication number
- CN205758742U CN205758742U CN201620377866.9U CN201620377866U CN205758742U CN 205758742 U CN205758742 U CN 205758742U CN 201620377866 U CN201620377866 U CN 201620377866U CN 205758742 U CN205758742 U CN 205758742U
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- CN
- China
- Prior art keywords
- base
- expansion
- activator
- arcuate
- plastic cement
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/10—Devices having means to apply outwardly directed force, e.g. expanders
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
A kind of expansion arcuate activator for correcting II class misfit, relates to medical instruments field, including base, it is characterised in that described base is made up of left base and right base two parts；Upper Anterior Teeth plastic cement cap that base includes being worn on labial teeth district and lower labial teeth plastic cement cap, be positioned at the palatine base of oral cavity palate cap and be positioned at the perpendicular web of mandibular dentition tongue side when wearing, and the tooth between upper lower jaw posterior occlusion face close between part；Base remote in reach first permanent mandibular molar remote in；Described expansion arcuate activator also includes an expansion screw and two hooks；Left base is connected by expansion screw with right base；Described hook corresponding to upper jaw both sides canine tooth near in.This utility model is reasonable in design, with low cost, wears with convenient, it is adaptable to II class angle of elevation malocclusion patient in early days, especially X-ray cephalometry case.
Description
Technical field
This utility model relates to medical instruments field, particularly relates to a kind of expansion arcuate flesh for correcting II class misfit exciting
Device.
Background technology
II class malocclusion is a kind of malocclusion the most more typically, mandibular retrusion, maxillary protrusion, X-ray cephalometry,
Affect very much the attractive in appearance of patient.II class malocclusion early treatment in most cases can block or alleviate the development of deformity, subtracts
Little subsequent fixed orthodontic treatment difficulty.For the traditional activator appliance of class Ⅱ malocclusion generally by one piece of plastic base group
Becoming, do not have anchor ring, the most do not produce the augmentor of mechanical force, the upper jaw part of base covers whole palate lid, lower jaw part
At the bottom of point extending downward mouthful, base remote in reach sixth-year molar remote in.Upper and lower base is connected, and forms lower incisor in labial teeth district
Lower labial teeth pushed down by plastic cap bag, and it act as preventing the vertical eruption of lower incisor and lip to inclination.With a pair of between eye tooth
Bent lip bow, can conduct the corrective force of muscle to Upper Anterior Teeth, if the base that Upper Anterior Teeth palate side includes teeth groove part is ground slow
Punching, Upper Anterior Teeth will be to palate side inclination movement under the influence of lip bends.The backteeth induction face dentulous of base, by grinding plastic cement
Induction face, can control, guide the vertical eruption of backteeth.But, this traditional activator being used for class Ⅱ malocclusion have as
Lower shortcoming: (1) base area is big, and patient's wearing comfort is poor, easily feels sick；(2) by receiving Upper Anterior Teeth in lip bow, strength is little and nothing
Method forces down Upper Anterior Teeth, therefore poor to the Growth inhibition that upper jaw bone is the most downward；(3) for trouble that upperdental arch is narrow
Person, owing to can not realize synchronizing up and down to expand bow without expanding bow parts；(4) for X-ray cephalometry patient, the time receiving in lip bow
Pendulum effect cannot be eliminated, make Upper Anterior Teeth expose too much；(5) for lower jaw spee ' s curve excessive in the case of, due to lower incisor
Do not do buffering reason between tongue side and base contacts face, therefore can not realize forcing down of mandibular incisors.
Utility model content
For above-mentioned deficiency present in background technology, it is an object of the invention to provide a kind of for correcting II class misfit
Expand arcuate activator, can also realize synchronizing up and down to expand bow while correcting misfit.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that
A kind of expansion arcuate activator for correcting II class misfit, including base, it is characterised in that described base is by a left side
Base and right base two parts are constituted；Upper Anterior Teeth plastic cement cap that base includes being worn on labial teeth district and lower labial teeth plastic cement cap, wear
Time be positioned at the palatine base of oral cavity palate cap and be positioned at the perpendicular web of mandibular dentition tongue side, and be positioned at lower jaw posterior occlusion
Part between the tooth conjunction between face；Base remote in reach first permanent mandibular molar remote in；Described expansion arcuate activator also wraps
Include an expansion screw and two hooks；Left base is connected by expansion screw with right base；Described hook pair
Should in upper jaw both sides canine tooth near in.
Described a kind of expansion arcuate activator for correcting II class misfit, it is characterised in that: described Upper Anterior Teeth plastic cement
1/2 corona of the upper incisor of cap embedding, 1/2 corona of lower labial teeth plastic cement cap embedding lower incisor.
Described a kind of expansion arcuate activator for correcting II class misfit, it is characterised in that: described expansion screw
Fixing with the palatine base of left base and right base respectively and be connected, the leg of expansion screw is embedded in the making material of base
In.
Described a kind of expansion arcuate activator for correcting II class misfit, it is characterised in that: described palatine base covers
Cover 1/2 palate lid.
Described a kind of expansion arcuate activator for correcting II class misfit, it is characterised in that: the making of described base
Material is resin；The embeding resin thickness of Upper Anterior Teeth plastic cement cap and lower labial teeth plastic cement cap lip side is 2mm.
Described a kind of expansion arcuate activator for correcting II class misfit, it is characterised in that: described hook material
For stainless steel silk, its cross section circular diameter is 0.9mm.
Described a kind of expansion arcuate activator for correcting II class misfit, it is characterised in that: described perpendicular web is not
Directly contact the tongue side of lower incisor, between the tongue side of its base portion and lower incisor, leave the gap of 0.5-1mm.
The present invention is by designing left base and right base, and sets up an expansion screw between left and right base, it is achieved that
Can also realize synchronizing up and down to expand bow while correcting misfit.Under there is advantages that (1) is leading specifically
Jaw is forward: by mandibular protraction, lower incisor is snapped at lower labial teeth plastic cement cap, labial teeth realizes this effect in cutting state of the cut.(2) in
Receipts force down Upper Anterior Teeth: add Headger by J hook and be connected with hook, and in removing, incisor palate side plastics realize this effect.(3) hang down
The low labial teeth of vertical compression: realize this effect by abrading lower incisor tongue side plastics.(4) bow is expanded: for the patient that upperdental arch is narrow,
This effect is realized by expansion screw reinforcing.(5) suppression upper jaw bone adds Headger and traction to the front lower J hook that grows through
Hook is connected, and both sides apply the orthopedic force of about 500g and realize this effect.(6) rotation counterclockwise of lower jaw plane: on forcing down
While lower labial teeth, leading lower jaw realizes forward this effect.In a word, this expansion arcuate activator is reasonable in design, with low cost, wears
With convenient, it is adaptable to II class angle of elevation malocclusion patient in early days, especially X-ray cephalometry case.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of the present invention；
Fig. 2 be the present invention look up structural representation；
Fig. 3 is the forward sight structural representation of the present invention；
Fig. 4 is the backsight structural representation of the present invention；
Fig. 5 is the Facad structure schematic diagram during use state of the present invention；
Fig. 6 is the side structure schematic diagram during use state of the present invention；
Wherein: 1-base；1-1-Upper Anterior Teeth plastic cement cap；Labial teeth plastic cement cap under 1-2-；1-3-palatine base；1-4-vertical tail,
Plate；2-hook；3-expansion screw.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail.
The invention provides a kind of expansion arcuate activator for correcting II class misfit, mainly include that base 1, two leads
Draw hook 2 and an expansion screw 3, see Fig. 1-4.This activator be by carrying out transforming at traditional activator and
Becoming, traditional base 1 is an overall structure, and the base designed by the present invention is divided into left base and right base two parts, is positioned at tooth
Part on the left of row center line is referred to as left base, is positioned at the part on the right side of denture center line and is referred to as right base；Left base and right base
Hold in the palm by resin respectively global formation, the Upper Anterior Teeth plastic cement cap 1-1 all including being worn on labial teeth district and lower labial teeth plastic cement cap 1-2,
It is positioned at the palatine base 1-3 of oral cavity palate cap when wearing, and is positioned at perpendicular web 1-4 of mandibular dentition tongue side；And upper
Part between the tooth conjunction between mandible posterior occlusal surface；Left base is connected by expansion screw 3 with right base, expansion screw 3
Fixing with left and right two palatine base 1-3 respectively and be connected, the leg of expansion screw 3 is embedded in resin, expansion screw 3
Structure be prior art, do not repeat at this.Adjustment hole in the middle part of expansion screw 3, should by regulation not by resin embedding
The arch size that hole realizes left base and right base is formed between the two.Described hook 2 corresponds to the near of upper jaw both sides canine tooth
In, for stainless steel silk, when its cross section circular diameter is 0.9mm, effect is preferable.
1/2 corona of incisor in Upper Anterior Teeth plastic cement cap 1-1 embedding, 1/2 tooth of lower labial teeth plastic cement cap 1-2 embedding lower incisor
Hat, both can play exercise lip flesh by the embeding resin of lip side, strengthen the effect of muscular tension, the effect when resin thickness is 2mm
Preferably.It addition, the palatine base 1-3 of this device covers 1/2 palate lid, greatly reduce the contact area of itself and palatine, thus subtract
Lack patient's discomfort reaction such as nauseating grade.
During use, hook 2 need to coordinate Headger and J hook to use, and in the J mouth of hook, part catches on hook 2, mouth outside and
Headger is connected.Added force value one side about 500g, belongs to orthopedic force.Thus realize suppressing upper jaw bone to grow forward.
Simultaneously by abrading the base plastics of Upper Anterior Teeth palate side, it is achieved force down interior receipts Upper Anterior Teeth, control premaxilla vertically to growth.
While leading mandibular bone, force down upper and lower labial teeth be conducive to reducing mandibular plane angle, i.e. mandibular bone sagittal to rotation counterclockwise
Turn, thus improve patient face type.
When correcting II class malocclusion, main operational steps following (do not do below illustrate for art technology
Means that personnel are usual and method):
1. prepare tooth mould.
2. cephalometric analysis: the direction of growth of the upper mandibular bone of patient；The patient of vertical-type growth need to control vertically to
Highly, it is to avoid the increase of mandibular plane angle.The upper lower jaw base position of bone puts the difference with size, calculates the front-extending quantity of lower jaw；Upper incision
The shaft rake of tooth and position, calculate receipts amount in Upper Anterior Teeth.
3. arcuate activator is expanded in preparation: place bite wax in patient oral cavity；When upper and lower Anterior overjet is less than 10mm,
Allow patient's mandibular protraction to labial teeth cut the position cut, and alignment denture center line is (in causing due to patient's tooth reason own
Line is uneven without the center line that aligns, and carries out other treatment again after misfit is corrected)；Labial teeth district vertically to opening be 2-4mm；Take and sting
Conjunction relation, prepares the expansion arcuate activator designed by the present invention according to occluding relation；When upper and lower Anterior overjet is at more than 10mm
Time, need the most leading lower jaw；The serious lip of upper incisor inclines needs upper incisor；Indivedual tooth obvious tongue side position eruptions need to use
Other appliances come into line.The rule of occlusal reconstruction: when lower jaw leading is 7-8mm, vertically should be 2-to opening
4mm；When lower jaw leading is 3-5mm, vertically to opening be 4-6mm.Additionally need to check between upper and lower dentition with or without
Early contact, conjunction interference and the mandatory displacement of lower jaw；Remporomandibular joint is with or without snap and friction sound；Respiratory function.
4. correct: the expansion arcuate activator prepared is worn in the patient's mouth, hook 2 need to coordinate Headger and
J hook uses, and in the J mouth of hook, part catches on hook 2, and mouth is outside to be connected with Headger.Generally expansion screw was by patient one week
Reinforcing once, carries out 1mm every time；4 weeks interval times of further consultation；Further consultation grinds the base plastics 0.5-of Upper Anterior Teeth palate side every time
1mm；Check the tongue side of lower incisor whether with base contacts, if any contact, 0.5-1mm need to be ground；Grind maxillary molar on a small quantity
Cheek side and the region of base contacts.J hook is connected to the hook part of activator, coordinates the Headger outside mouth, applies single
The orthopedic force of side about 500g, the time that every day, patient wore was more than 12 hours.Final patient's labial teeth to be reached is in end-to-end occlusion,
Backteeth has the state of occlusal contact condition relation, i.e. reaches therapeutic goal.
This utility model techniques not described feature, is the known technology of those skilled in the art, is not repeated herein.
Claims (3)
1. for correcting an expansion arcuate activator for II class misfit, including base (1), it is characterised in that described base (1)
It is made up of left base and right base two parts；Upper Anterior Teeth plastic cement cap (1-1) that base (1) includes being worn on labial teeth district and lower labial teeth
Plastic cement cap (1-2), is positioned at the palatine base (1-3) of oral cavity palate cap and is positioned at the perpendicular web of mandibular dentition tongue side when wearing
(1-4) part between the tooth conjunction, and between upper lower jaw posterior occlusion face；Base (1) remote in reach the permanent mill of lower jaw first
During tooth is remote；Described expansion arcuate activator also includes an expansion screw (3) and two hooks (2)；Left base and the right side
Base is connected by expansion screw (3)；Described hook (2) corresponding to upper jaw both sides canine tooth near in.
A kind of expansion arcuate activator for correcting II class misfit the most according to claim 1, it is characterised in that: described
1/2 corona of incisor in Upper Anterior Teeth plastic cement cap (1-1) embedding, 1/2 corona of lower labial teeth plastic cement cap (1-2) embedding lower incisor.
A kind of expansion arcuate activator for correcting II class misfit the most according to claim 1, it is characterised in that: described
Expansion screw (3) is fixing with the palatine base (1-3) of left base and right base respectively to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620377866.9U CN205758742U (en) | 2016-04-29 | 2016-04-29 | A kind of expansion arcuate activator for correcting II class misfit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620377866.9U CN205758742U (en) | 2016-04-29 | 2016-04-29 | A kind of expansion arcuate activator for correcting II class misfit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205758742U true CN205758742U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620377866.9U Expired - Fee Related CN205758742U (en) | 2016-04-29 | 2016-04-29 | A kind of expansion arcuate activator for correcting II class misfit |
Country Status (1)
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| CN (1) | CN205758742U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105726143A (en) * | 2016-04-29 | 2016-07-06 | 浙江大学医学院附属口腔医院 | Expansion type muscular activator for correcting class-II malocclusion and correction method thereof |
| CN108969128A (en) * | 2018-08-03 | 2018-12-11 | 四川大学 | A kind of correction external traction device |
| CN112842580A (en) * | 2021-01-18 | 2021-05-28 | 北京大学口腔医学院 | Control method of orthodontic arch expanding device capable of accurately applying force |
-
2016
- 2016-04-29 CN CN201620377866.9U patent/CN205758742U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105726143A (en) * | 2016-04-29 | 2016-07-06 | 浙江大学医学院附属口腔医院 | Expansion type muscular activator for correcting class-II malocclusion and correction method thereof |
| CN105726143B (en) * | 2016-04-29 | 2018-06-29 | 浙江大学医学院附属口腔医院 | A kind of expansion arcuate activator for being used to correct II class misfit |
| CN108969128A (en) * | 2018-08-03 | 2018-12-11 | 四川大学 | A kind of correction external traction device |
| CN112842580A (en) * | 2021-01-18 | 2021-05-28 | 北京大学口腔医学院 | Control method of orthodontic arch expanding device capable of accurately applying force |
| CN112842580B (en) * | 2021-01-18 | 2022-02-18 | 北京大学口腔医学院 | Control method of orthodontic arch expanding device capable of accurately applying force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20210429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |