CN106821517B - Maxillary occlusal pad type molar distantly moving device in tooth replacing period - Google Patents
Maxillary occlusal pad type molar distantly moving device in tooth replacing period Download PDFInfo
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- CN106821517B CN106821517B CN201710176605.XA CN201710176605A CN106821517B CN 106821517 B CN106821517 B CN 106821517B CN 201710176605 A CN201710176605 A CN 201710176605A CN 106821517 B CN106821517 B CN 106821517B
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- 235000015246 common arrowhead Nutrition 0.000 claims abstract description 10
- 230000036346 tooth eruption Effects 0.000 claims description 20
- 210000004513 dentition Anatomy 0.000 claims description 19
- 230000014759 maintenance of location Effects 0.000 claims description 12
- 210000004283 incisor Anatomy 0.000 claims description 10
- 210000004763 bicuspid Anatomy 0.000 claims description 8
- 241000282465 Canis Species 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
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- 238000012937 correction Methods 0.000 abstract description 6
- 210000002295 maxillary tooth Anatomy 0.000 abstract 1
- 210000002455 dental arch Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 210000003464 cuspid Anatomy 0.000 description 3
- 206010061274 Malocclusion Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
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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
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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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C2204/00—Features not otherwise provided for
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention provides a maxillary tooth closing pad type molar distancer in a tooth replacement period, which comprises a fixed fulcrum component and a distancing and shifting component for shifting a first molar to be shifted, wherein the fixed fulcrum component comprises a base for a fulcrum, a first adjacent hook for the fulcrum, a second adjacent hook for the fulcrum and a hyperbolic labial arch for the fulcrum; the far-middle displacement assembly comprises an arrow head card for displacement, a base for displacement, a buccal side spiral expander for displacement and a palate side spiral expander for displacement; this kind of replace tooth period upper jaw bite pad formula molar distantly moves ware can play effectual long-range moving action to the first molar of upper jaw. Placing the spiral expander on the impedance central plane of the first molar to be displaced, and gradually applying force to finish the correction of the overall far and middle movement of the first molar to be displaced; the base is firmly adhered to the gum through the fulcrum, and the maximum fulcrum resistance is provided, so that unnecessary movement of other teeth is reduced.
Description
Technical Field
The invention relates to a maxillary occlusal pad type molar distancer in a dental replacement period.
Background
The process of tooth eruption and replacement is facilitated by a number of factors. The first molar often moves medially during the replacement period due to carious decay or premature loss of the second deciduous molar, causing the second premolar to be arrested, affecting the normal replacement of the tooth. Early intervention is needed to move the first molar moving in the process of approaching far and near, so that the normal eruption of the permanent teeth is promoted, and the occurrence of complex malocclusion deformity is avoided. While the teeth that provide anchorage during the replacement period are relatively few, the appliance is not retained sufficiently and the first molars that are moving medially cannot be effectively moved to the normal position. Therefore, the appliance which has relatively less requirement on anchorage teeth and low retention requirement and can integrally move the first molar teeth far and far is designed.
The best treatment for the mesio-mobile maxillary first molars is to guide the permanent molars into normal position, keeping the dentition intact and functioning as a chew. In the prior art, a movable appliance is usually adopted for pushing molars to move far, the stress application part of the movable appliance is positioned at the crown part of the tooth, after stress application, the crown moves far, the tooth root moves near the middle, and the tooth moves obliquely, so that the aim of integrally moving the first molars far cannot be achieved; the requirement on the anchorage tooth is high, so that the anchorage tooth is not sore and uncomfortable in a certain period of time, the daily life of a patient is influenced, and reaction force is generated on other teeth except the first molar of the upper jaw moving in the middle-to-middle position, so that unnecessary transfer of other teeth is caused, and the correction effect is influenced; is not suitable for patients in the dental replacement stage.
The effect of distal movement of molars has large individual differences. Factors that influence the amount of molar removability include the manner in which the molars are moved and the timing of treatment for moving the molars in the distal direction. The existing appliance applies force to the crown part of the first molar, so that the integral distal movement of the first molar is difficult to cause; the later period of the replacement tooth is the optimal period for moving the first molar far away, and the moving of the molar far away is beneficial to the normal eruption of the second premolar and can prevent the eruption or ectopic eruption of the second molar. The existing intraoral movable appliance has higher requirement on retention, insufficient retention and no guarantee on the correction effect; the requirement on anchorage is high, the front labial inclination is easily caused, and the result of a patient with the front labial inclination is catastrophic; distancing the molars can cause elongation of the molars and is not suitable for patients with higher mandibular plane angles. Aiming at the current situation, the invention designs the maxillary bite-block type molar distancer in the tooth replacement period so as to be suitable for the early-stage far and middle movement of the first molar of a patient in the tooth replacement period and slightly depress the first maxillary molar under the condition of ensuring the far and middle movement effect.
The above problems are problems that should be considered and solved in the dental correction process in the dental replacement stage.
Disclosure of Invention
The invention aims to provide a maxillary occlusion pad type molar distancing device in a tooth replacing period, which is suitable for integrally moving a maxillary first molar in the tooth replacing period and in a high-efficiency distal manner and solves the problems that a movable appliance in the prior art is not suitable for the tooth replacing period with fewer teeth due to insufficient retention and anchorage, treatment time is delayed, treatment effect is limited and the like.
The technical solution of the invention is as follows:
a maxillary occlusion pad type molar distancing device for a tooth replacing period comprises a fixed fulcrum assembly and a distancing and shifting assembly for shifting a first molar to be shifted, wherein the fixed fulcrum assembly comprises a support for a fulcrum, a first adjacent hook for the fulcrum, a second adjacent hook for the fulcrum and a hyperbolic labial arch for the fulcrum, one side of the hyperbolic labial arch for the fulcrum is embedded in the support for the fulcrum, the other side of the hyperbolic labial arch for the fulcrum is arranged on the labial side of a dentition, the other side of the dentition is arranged on the labial side of the dentition, the first adjacent hook for the fulcrum is embedded in all dentitions except the first molar to be shifted by the support for the fulcrum, the first adjacent hook for the fulcrum and the second adjacent hook for the fulcrum are respectively arranged on two sides of the support for the fulcrum, and the first adjacent hook for the fulcrum and the second adjacent hook for the fulcrum are respectively arranged between adjacent dentitions of the dentition; the far-middle displacement assembly comprises a displacement arrow head clamp, a displacement base, a displacement buccal side spiral expander and a displacement palate side spiral expander, the displacement base is embedded in the first molar to be displaced, the displacement arrow head clamp is embedded in the displacement base, the displacement arrow head clamp is arranged on the first molar to be displaced, one side of the displacement buccal side spiral expander and one side of the displacement palate side spiral expander are respectively arranged on two sides of the displacement base, the other side of the displacement buccal side spiral expander and the other side of the displacement palate side spiral expander are respectively arranged on two sides of the fulcrum base, the displacement buccal side spiral expander is arranged on the buccal side of the first molar to be displaced, and the displacement palate side spiral expander is arranged on the palate side of the first molar to be displaced.
The displacement device further comprises a displacement middle spiral expander arranged at the palatal middle seam, one side of the displacement middle spiral expander is embedded in the displacement base, and the other side of the displacement middle spiral expander is embedded in the fulcrum base.
Further, the fulcrum wraps with the base the resection 1/3 of all teeth except the first molar to be displaced and the contralateral first molar to be displaced and the full crown of the contralateral first molar to be displaced.
Further, the distal displacement assembly comprises a left distal displacement assembly for displacing the left to-be-displaced first molar and a right distal displacement assembly for displacing the right to-be-displaced first molar, the displacement base of the left distal displacement assembly embeds one side of the displacement middle screw expander, the other side of the displacement middle screw expander is embedded in the displacement base of the right distal displacement assembly, and the displacement middle screw expander is arranged at the palatal suture.
Further, the fulcrum-use base forms a anatomic bite pad at all dentitions except for the first molar to be displaced, and the displacement-use base forms a planar bite pad at the first molar to be displaced.
Further, the fulcrum is bonded to the tooth with the base by an adhesive.
Furthermore, the buccal side screw expander for displacement and the palate side screw expander for displacement are positioned at the junction plane of the root neck 1/3 and the root middle 1/3 of the first molar to be displaced, force is applied to the impedance central plane of the first molar to be displaced, and the function of moving the whole first molar to be displaced far and middle can be achieved.
Furthermore, the arrow card for displacement, the first adjacent hook for fulcrum, the second adjacent hook for fulcrum and the hyperbolic labial arch for fulcrum are respectively bent by 0.7mm or 0.8mm stainless steel wires, the tail end of the arrow card for displacement is bent to form a first retention ring, and the first retention ring is embedded in the base for displacement; and the first adjacent hook for the fulcrum, the second adjacent hook for the fulcrum and the tail end of the hyperbolic labial arch for the fulcrum are respectively bent to form a second fixing ring, and the second fixing ring is embedded in the base for the fulcrum.
Furthermore, the first fulcrum-use and the second fulcrum-use interproximal hooks are respectively arranged between the deciduous canines and the first bicuspids on the two sides, the buccal side screw expander for displacement is arranged between the second deciduous molar and the buccal side of the first molar to be displaced, and the palatal side screw expander for displacement is arranged between the second deciduous molar and the palatal side of the first molar to be displaced.
Further, the displacement base extended to the root side on the buccal side of the first molar to be displaced, ended at 1/3 in the first molar root to be displaced, the fulcrum was located at 1/3 in the labial side of the four maxillary incisors with hyperbolic labial arch, both ends were turned from the distal to lingual side of the lateral incisors and embedded in the fulcrum base, the fulcrum covered the labial incision 1/3 of the maxillary incisors with the base, and the fulcrum covered the buccal occlusions 1/3 of the deciduous cuspids, the first bicuspids on both sides, and the second deciduous molar with the base.
The invention has the beneficial effects that: this kind of replace tooth period upper jaw bite pad formula molar distantly moves ware can play effectual long-range moving action to the first molar of upper jaw. The method comprises the following steps of taking an arrow card for a fulcrum, a first adjacent hook for the fulcrum, a second adjacent hook for the fulcrum and a hyperbolic labial arch for the fulcrum as fixed points, adhering a base support for the fulcrum to tooth surfaces of all teeth except a first molar to be displaced for reinforcing and fixing, placing a buccal side spiral expander for displacement and a palate side spiral expander for displacement at an impedance central plane of the first molar to be displaced, and gradually applying force to finish correction of overall far and middle movement of the first molar to be displaced; the base is firmly attached to the gum through the fulcrum, providing maximum resistance to the fulcrum to reduce unwanted movement of other teeth. In the invention, the first molar to be displaced is moved in the far-middle direction, and simultaneously, the width of the dental arch is expanded, so that the upper dental arch and the lower dental arch are matched more.
Drawings
FIG. 1 is a schematic structural view of a maxillary bite-block type molar distancer in a dental replacement period according to an embodiment of the present invention;
FIG. 2 is a schematic view of the fixed pivot assembly and the distancing and shifting assembly according to one embodiment;
FIG. 3 is a schematic view of the A-direction structure of FIG. 2;
FIG. 4 is a schematic structural view of a double-curved lip arch according to an embodiment;
FIG. 5 is a schematic structural view of a maxillary bite-block type molar distancer in the second dental replacement stage according to an embodiment;
wherein: 1-a fixed fulcrum component, 2-a distal-medial displacement component, 3-a first molar to be displaced, 4-a deciduous cuspid, 5-a first bicuspid, 6-a second deciduous molar, and 7-a first molar to be displaced opposite to the first molar;
11-a base for a fulcrum, 12-a first adjacent hook for the fulcrum, 13-a second adjacent hook for the fulcrum, 14-a hyperbolic labial arch for the fulcrum and 15-a first retention ring;
21-displacement arrow card, 22-displacement base, 23-displacement buccal side screw expander, 24-displacement palate side screw expander, 25-displacement middle screw expander, and 26-retaining ring II.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example one
A maxillary occlusion pad type molar distancer for a tooth replacing period comprises a fixed fulcrum assembly 1 and a distancing and shifting assembly 2 for shifting a first molar 3 to be shifted, as shown in fig. 2 and 3, wherein the fixed fulcrum assembly 1 comprises a fulcrum base 11, a fulcrum adjacent intermediate hook I12, a fulcrum adjacent intermediate hook II 13 and a fulcrum hyperbolic labial arch 14, as shown in fig. 4, one side of the fulcrum hyperbolic labial arch 14 is embedded in the fulcrum base 11, the other side of the fulcrum hyperbolic labial arch 14 is arranged on the labial side of a dentition, the fulcrum base 11 is embedded in all dentitions except the first molar 3 to be shifted, the fulcrum adjacent intermediate hook I12 and the fulcrum adjacent intermediate hook II 13 are respectively arranged on two sides of the fulcrum base 11, and the fulcrum adjacent interdentium of the dentition is respectively arranged by the fulcrum adjacent intermediate hook I12 and the fulcrum adjacent intermediate hook II 13.
As shown in fig. 2 and 3, the mesial shift assembly 2 includes a shift arrow card 21, a shift base 22, a shift buccal-side screw expander 23, and a shift palatal-side screw expander 24, the shift base 22 embeds the first molar 3 to be shifted, the shift arrow card 21 embeds the shift base 22, the shift arrow card 21 is provided on the first molar 3 to be shifted, one side of the shift buccal-side screw expander 23 and one side of the shift palatal-side screw expander 24 are provided on both sides of the shift base 22, the other side of the shift buccal-side screw expander 23 and the shift palatal-side screw expander 24 are provided on both sides of the fulcrum base 11, the shift buccal-side screw expander 23 is provided on the buccal side of the first molar 3 to be shifted, and the shift palatal-side screw expander 24 is provided on the palatal side of the first molar 3 to be shifted.
The supporting point base 11 is fixed on the tooth row by a supporting point first 12 adjacent to the hook, a supporting point second 13 adjacent to the hook and a supporting point 14 double-curved labial arch. The displacement base 22 is fixed to the first molar 3 to be displaced by the displacement arrow card 21. As shown in fig. 2, when the shifting buccal screw expander 23 and the shifting palate screw expander 24 are not applied with force, the gap between the fulcrum base 11 and the shifting base 22 becomes larger as the shifting buccal screw expander 23 and the shifting palate screw expander 24 are opened. The entire distal movement of the first molar 3 to be displaced is realized by the opening of the buccal screw expander for displacement 23 and the palate screw expander for displacement 24.
This kind of replace tooth period upper jaw bite pad formula molar distantly moves ware can play effectual long-range moving action to the first molar of upper jaw. Taking an arrow card 21 as a fulcrum, a first adjacent hook 12 as a fulcrum, a second adjacent hook 13 as a fulcrum and a hyperbolic labial arch 14 as fixed points, adhering a base 11 as a fulcrum to the tooth surfaces of all teeth except the first molar 3 to be displaced for reinforcing and retaining, placing a spiral expander on the impedance central plane of the first molar 3 to be displaced, and gradually applying force to finish the correction of the overall far and middle movement of the first molar 3 to be displaced; the base 11 is firmly attached to the gum through the fulcrum to provide maximum resistance to the fulcrum to reduce unwanted movement of other teeth.
The maxillary occlusal pad type molar distancer in the tooth replacement period according to the first embodiment is suitable for a patient in the tooth replacement period to move the maxillary first molar far and middle in the early stage so as to avoid the occurrence and development of complex malocclusion deformity. In the first embodiment, the force application part is located in the impedance center plane of the first molar 3 to be displaced, so that the overall distal movement of the first molar 3 to be displaced can be realized.
In an embodiment, the displacement base 22 extends nasally in the first molar 3 to be displaced, ending at 1/3 in the root of the first molar 3 to be displaced, and may effectively wrap the displacement buccal lateral screw expander. The supporting point hyperbolic labial arch 14 is located 1/3 on the labial side of four maxillary incisors, and the bilateral ends are turned from the distal side of the lateral incisors to the lingual side and embedded in the supporting point base 11 to reinforce anchorage. The base 11 for fulcrum covers the labial incision 1/3 of the maxillary incisor, and the base 11 for fulcrum covers the deciduous canines 4, the buccal occlusions 1/3 of the first bicuspid 5 and the second deciduous molar 6 on both sides to increase the adhesion area.
In one embodiment, the displacement device includes a displacement middle screw expander 25 provided in the palatal midline, one side of the displacement middle screw expander 25 is embedded in the displacement base 22, and the other side of the displacement middle screw expander 25 is embedded in the fulcrum base 11. In the first embodiment, the width of the dental arch between the first molar teeth is enlarged by the intermediate screw expander 25 for displacement while the first molar teeth 3 to be displaced are moved in the distal direction, so that the upper and lower dental arches are prevented from being mismatched, and the upper and lower dental arches are more harmonious in width.
In the first embodiment, the fulcrum-use base 11 forms a anatomic bite pad at all dentitions except the first molar 3 to be displaced and the first molar 7 on the opposite side of the first molar 3 to be displaced, stabilizing the posterior occlusal relationship while providing a small amount of anchorage by means of the lower jaw. The base 22 for shifting forms a plane bite pad at the first molar 3 to be shifted, so as to release the locking relation of the posterior teeth, and facilitate the distal movement of the first molar 3 to be shifted. The planar bite block resists elongation during distal movement of the first molar 3 to be displaced and performs a small amount of depression to avoid adding unnecessary facial height. In the first embodiment, the base circle to be shifted is passivated to reduce the discomfort of the patient.
In the first embodiment, the fulcrum-use base 11 is wrapped with the full dentition, that is, the fulcrum-use base 11 covers the buccal cuts 1/3, the occlusal and lingual surfaces that wrap the full dentition except for the first molar 3 to be displaced. The fulcrum base 11 and the displacement base 22 are separated in the vicinity of the first molar 3 to be displaced, and a displacement buccal side screw expander 23 and a displacement palatal side screw expander 24 are provided on the buccal side and the lingual side, respectively, the displacement base 22 extends in the root direction, the displacement buccal side screw expander 23 and the displacement palatal side screw expander 24 are placed on the junction plane of the root neck 1/3 and the middle 1/3 of the first molar 3 to be displaced and embedded in the bases, and the displacement buccal side screw expander 23 and the displacement palatal side screw expander 24 are located on the impedance center horizontal plane of the first molar 3 to be displaced, and the first molar 3 to be displaced is moved in the entire distal direction after being applied with force.
In the first embodiment, the base 11 for a fulcrum is bonded to a tooth with an adhesive. The anchorage teeth are connected as a whole by fixed adhesion to the tooth surface to provide the anchorage required for the overall distal movement of the first molar tooth 3 to be displaced. The adhesive is made of fluorine-containing material, and can enhance the oral hygiene and cleanness so as to prevent unnecessary demineralization and caries of teeth.
In the first embodiment in which the fulcrum wraps the incisions 1/3 of all teeth except the first molar 3 to be displaced and the entire crowns of the first molar on the opposite side of the first molar 3 to be displaced with the base 11, the first embodiment enables the entire mesial movement of the first molar 3 to be displaced on one side.
In the first embodiment, the displacement arrow head card 21 is used for enhancing the retention and is embedded in the displacement base 22. The fulcrum is placed between the first bicuspid 5 and the deciduous cuspid 4 by using a first adjacent hook 12 and a second adjacent hook 13, the maxillary incisors are covered by using the hyperbolic labial arch 14, the incisal ends of all teeth except the first molar 3 to be displaced are embedded by using the base 11, the incisal/occlusal bite 1/3 is covered, and the base 22 for displacement extends to the root side to 1/3 in the area of the first molar 3 to be displaced. The arrow head clamp 21 for displacement, the first adjacent hook 12 for fulcrum, the second adjacent hook 13 for fulcrum and the hyperbolic labial arch 14 for fulcrum are respectively bent by 0.7mm or 0.8mm stainless steel wires and are closely attached to the tooth surface in position to strengthen the anchorage. The tail end of the displacement arrow head clamp 21 is bent to form a first retention ring 15, and the first retention ring 15 is embedded in the displacement base 22; and the first adjacent hook 12 for the fulcrum, the second adjacent hook 13 for the fulcrum and the end of the hyperbolic labial arch 14 for the fulcrum are respectively bent to form a second fixing ring 26, and the second fixing ring 26 is embedded in the base 11 for the fulcrum.
In the first embodiment, the first fulcrum-use interproximal hook 12 are respectively placed between the deciduous canines 4 and the first bicuspids 5 on both sides, the buccal screw expander for displacement 23 is placed between the second deciduous molar 6 and the buccal side of the first molar 3 to be displaced, and the palatal screw expander for displacement 24 is placed between the second deciduous molar 6 and the palatal side of the first molar 3 to be displaced. In the first embodiment, the buccal side screw expander 23 and the palate side screw expander 24 for displacement are used for the convenience of the patient to adjust and apply force, and the appropriate size is selected according to the distance the upper jaw is to be displaced by the first molar 3 to move far, and if the moving distance exceeds the limit of the screw expanders, the model is taken out and the model is made again.
Example two
The structure of the second embodiment is basically the same as that of the first embodiment, and the structure of the second embodiment is different from that of the first embodiment in that: as shown in fig. 5, the mesial shift assembly 2 includes a left mesial shift assembly 2 for shifting the left first molar 3 to be shifted and a right distal shift assembly 2 for shifting the right first molar 3 to be shifted, the shifting base 22 of the left distal shift assembly 2 embeds one side of the shifting intermediate screw expander 25, the other side of the shifting intermediate screw expander 25 embeds the shifting base 22 of the right distal shift assembly 2, and the shifting intermediate screw expander 25 is provided at the palatal slit.
Unlike the first embodiment, which is suitable for the distal displacement of the first molar 3 to be displaced on one side, in the second embodiment, the distal displacement of the first molar 3 to be displaced on both sides is realized by the left distal displacement component 2 and the right distal displacement component 2, respectively.
Claims (7)
1. The utility model provides a for tooth phase upper jaw bite pad formula molar distantly moving ware which characterized in that: the dental appliance comprises a fixed fulcrum assembly and a remote and medium shifting assembly used for moving a first molar to be shifted, wherein the fixed fulcrum assembly comprises a support for a fulcrum, a first adjacent hook for the fulcrum, a second adjacent hook for the fulcrum and a hyperbolic labial arch for the fulcrum, one side of the hyperbolic labial arch for the fulcrum is embedded in the support for the fulcrum, the other side of the hyperbolic labial arch for the fulcrum is arranged on the labial side of a dentition, the support for the fulcrum is embedded in all dentitions except the first molar to be shifted, the first adjacent hook for the fulcrum and the second adjacent hook for the fulcrum are respectively arranged on two sides of the support for the fulcrum, and the first adjacent hook for the fulcrum and the second adjacent hook for the fulcrum are respectively arranged between adjacent dentitions of the dentition;
the far-middle displacement assembly comprises a displacement arrow head clamp, a displacement base, a displacement buccal side spiral expander and a displacement palate side spiral expander, the displacement base is embedded in the first molar to be displaced, the displacement arrow head clamp is embedded in the displacement base, the displacement arrow head clamp is arranged on the first molar to be displaced, one side of the displacement buccal side spiral expander and one side of the displacement palate side spiral expander are respectively arranged on two sides of the displacement base, the other side of the displacement buccal side spiral expander and the other side of the displacement palate side spiral expander are respectively arranged on two sides of the fulcrum base, the displacement buccal side spiral expander is arranged on the buccal side of the first molar to be displaced, and the displacement palate side spiral expander is arranged on the palate side of the first molar to be displaced; the middle spiral expander for displacement is arranged at the middle seam of the palate, one side of the middle spiral expander for displacement is embedded in the base for displacement, and the other side of the middle spiral expander for displacement is embedded in the base for fulcrum; the base for the fulcrum forms an anatomic occlusal pad at all dentition positions except the first molar to be displaced, and the base for the displacement forms a plane occlusal pad at the first molar to be displaced; the far-middle shifting assembly comprises a left far-middle shifting assembly and a right far-middle shifting assembly, the left far-middle shifting assembly is used for shifting a left to-be-shifted first molar, the right far-middle shifting assembly is used for shifting a right to-be-shifted first molar, a shifting base of the left far-middle shifting assembly is embedded in one side of a shifting middle spiral expander, the other side of the shifting middle spiral expander is embedded in a shifting base of the right far-middle shifting assembly, and the shifting middle spiral expander is arranged at a palatal suture.
2. The denture session maxillary bite-pad molar distancer of claim 1, wherein: the fulcrum embeds 1/3 cuts of all teeth except the first molar to be displaced and the contralateral first molar to be displaced and the full crown of the contralateral first molar to be displaced with the base.
3. The denture session maxillary bite-pad molar distancer of claim 1, wherein: the fulcrum is adhered to the tooth with the base by the adhesive.
4. The denture period maxillary bite-pad type molar distancer as claimed in any one of claims 1 to 3, wherein: the buccal and palatal lateral screw expanders for displacement are located at the interface plane of the first molar root neck 1/3 and the root middle 1/3 to be displaced.
5. The denture session maxillary bite-pad molar distancer of claim 4, wherein: the arrow card for shifting, the first adjacent hook for fulcrum, the second adjacent hook for fulcrum and the hyperbolic labial arch for fulcrum are respectively bent by 0.7mm or 0.8mm stainless steel wires, the tail end of the arrow card for shifting is bent to form a first retention ring, and the first retention ring is embedded in the base for shifting; and the first adjacent hook for the fulcrum, the second adjacent hook for the fulcrum and the tail end of the hyperbolic labial arch for the fulcrum are respectively bent to form a second fixing ring, and the second fixing ring is embedded in the base for the fulcrum.
6. The denture session maxillary bite-pad molar distancer of claim 5, wherein: the first fulcrum-use and the second fulcrum-use adjacent hooks are respectively arranged between the deciduous canines and the first bicuspids on the two sides, the buccal-side spiral expander for displacement is arranged between the second deciduous molar and the buccal side of the first molar to be displaced, and the palatal-side spiral expander for displacement is arranged between the second deciduous molar and the palatal side of the first molar to be displaced.
7. The denture session maxillary bite-pad molar distancer of claim 6, wherein: the displacement base extends to the root side on the buccal side of the first molar to be displaced, ends in 1/3 the first molar root to be displaced, the fulcrum is located at 1/3 the labial side of the four maxillary incisors with hyperbolic labial arch, the bilateral ends are turned to the lingual side from the distal of the lateral incisors and embedded in the fulcrum base, the fulcrum covers the labial cut 1/3 of the maxillary incisors with the base, and the fulcrum covers the buccal occlusions 1/3 of the deciduous canines, the first bicuspids on both sides and the second deciduous molar with the base.
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| CN201710176605.XA CN106821517B (en) | 2017-03-23 | 2017-03-23 | Maxillary occlusal pad type molar distantly moving device in tooth replacing period |
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| CN106821517B true CN106821517B (en) | 2022-03-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US11844662B2 (en) | 2018-11-14 | 2023-12-19 | Nan Jing Ningdong Digital Technology Co., Ltd. | Dentition movement track indicator and manufacturing method of intra-oral fixation assembly thereof |
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| CN107997836A (en) * | 2018-01-16 | 2018-05-08 | 四川大学 | Force down Occlusal pad formula appliance of individual teeth and preparation method thereof and application method |
| CN109480781B (en) * | 2018-11-14 | 2021-07-09 | 南京医科大学附属口腔医院 | Tracing device and method for dentition movement track |
| CN113057750B (en) * | 2021-04-30 | 2022-08-16 | 南京市口腔医院 | Force application device and method based on invisible correction of tooth extraction case |
| CN115137503B (en) * | 2022-06-28 | 2024-02-02 | 北京大学口腔医学院 | Adjustable noninvasive upper jaw tail end molar depression device |
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| CN202342211U (en) * | 2011-11-01 | 2012-07-25 | 西安交通大学口腔医院 | Improved upper jaw wire B removable appliance for getting rid of bad habit of sucking lower lip |
| CN202342213U (en) * | 2011-11-01 | 2012-07-25 | 西安交通大学口腔医院 | Combination modified type maxillary occlusal pad type appliance |
| CN103932809B (en) * | 2014-03-28 | 2016-06-29 | 南京医科大学附属口腔医院 | The control root lip jaw cushion removable appliance to movement |
| CN105287028B (en) * | 2014-07-08 | 2018-05-08 | 汪虹虹 | A kind of distal movement of molar appliance for coordinating micro- implant anchorage |
| CN105310788B (en) * | 2014-08-07 | 2018-08-17 | 沈刚 | A kind of orthopedic appliance for stimulating Mandibular deviation, inhibiting upper jaw growth |
| CN106491222A (en) * | 2017-01-10 | 2017-03-15 | 常州市第人民医院 | Improve fixed canine tooth distance removing device |
| CN207270395U (en) * | 2017-03-23 | 2018-04-27 | 南京医科大学附属口腔医院 | Cushion molar distal jet is closed for tooth phase maxillary teeth |
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| US11844662B2 (en) | 2018-11-14 | 2023-12-19 | Nan Jing Ningdong Digital Technology Co., Ltd. | Dentition movement track indicator and manufacturing method of intra-oral fixation assembly thereof |
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