CN109394371B - Oral cavity adhesive agent taking-out device and oral cavity adhesive agent taking-out method thereof - Google Patents

Oral cavity adhesive agent taking-out device and oral cavity adhesive agent taking-out method thereof Download PDF

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Publication number
CN109394371B
CN109394371B CN201811543116.4A CN201811543116A CN109394371B CN 109394371 B CN109394371 B CN 109394371B CN 201811543116 A CN201811543116 A CN 201811543116A CN 109394371 B CN109394371 B CN 109394371B
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China
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adhesive
oral cavity
oral
crown
dental
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CN201811543116.4A
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CN109394371A (en
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吴晓珊
李艳
姚珏椅
宋亮
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Xiangya Hospital of Central South University
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Xiangya Hospital of Central South University
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle

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  • Health & Medical Sciences (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)
  • Prostheses (AREA)

Abstract

The invention relates to the technical field of medical instruments, in particular to an oral cavity adhesive taking-out device and an oral cavity adhesive taking-out method thereof. The utility model provides an oral cavity adhesive remove device, includes the diaphragm, the diaphragm has the first surface and the second surface that set up mutually back on the back, the first surface is the smooth surface for the adhesion is on the surface of denture crown, the second surface is the rough surface, be equipped with the absorption unit on the second surface, the absorption unit is used for adsorbing unnecessary oral cavity binder. A method for removing oral cavity adhesive comprises the following steps: adhering a first surface of a diaphragm to the artificial tooth crown, wherein a second surface of the diaphragm provided with an adsorption unit faces out of the oral cavity; the dental crown of the artificial tooth is arranged on the tooth or the implant by using an adhesive, and the oral adhesive overflowing after the dental crown is in place is absorbed by the absorption unit; and taking out the film after the oral cavity adhesive is hardened, and simultaneously taking out the redundant oral cavity adhesive. The invention has the advantages that: convenient operation and simple structure.

Description

Oral cavity adhesive agent taking-out device and oral cavity adhesive agent taking-out method thereof
Technical Field
The invention relates to the technical field of medical instruments, in particular to an oral cavity adhesive taking-out device and an oral cavity adhesive taking-out method thereof.
Background
In the course of oral treatment, it is often necessary to adhere a crown of a dental prosthesis to an abutment of a tooth or an implant, and in this process, an adhesive is a necessary material for adhesion retention.
Clinically, the crown margin of a denture is often located under the gum, whether crown or implant restoration. After the dental crown is cemented, the oral cement often remains at the margin of the dental crown. The retained oral adhesive can directly stimulate the gingiva and the periodontal tissue, and the formed rough surface can enable bacterial plaque to be attached, so that the gingival tissue is damaged, gingival inflammation is caused, and the incidence rate of gingivitis and periodontitis is increased.
At present, a mechanical scraping method is often adopted to scrape the adhesive from the dental crown or the gum, and the method has low taking-out efficiency and inconvenient operation; secondly, the machine causes secondary trauma to the periodontal tissue, which aggravates the patient's pain.
Disclosure of Invention
In view of the above, it is desirable to provide an oral adhesive agent extraction device that is easy to handle, has a simple structure, and can perform adhesion extraction quickly.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an oral cavity binder remove device, includes the diaphragm, the diaphragm has the first surface and the second surface that set up back to back, the first surface is the smooth surface for the adhesion is on the surface of dental crown, the second surface is the rough surface, be equipped with the absorption unit on the second surface, the absorption unit is used for adsorbing unnecessary oral cavity binder.
In the present application, by providing an adsorption unit, the membrane is adhered to the crown, and after the dental crown of the artificial tooth is adhered to the tooth or the implant with the oral adhesive, the overflowed oral adhesive is directly adsorbed by the adsorption unit; then, the oral cavity adhesive is directly taken out through the membrane, so that the oral cavity adhesive is prevented from being adhered to the dental crown or the gum of a patient, the oral cavity adhesive is very convenient to take out, and the operation is simpler.
In one embodiment, the diaphragm has a first end and a second end opposite to each other, the first end is arranged near the neck of the artificial tooth, the second end is arranged near the crown of the artificial tooth, and the adsorption unit is arranged near the first end.
In one embodiment, the adsorption unit comprises a plurality of protrusions, and the plurality of protrusions are distributed along the direction from the first end to the second end.
In one embodiment, the height of the plurality of protrusions is gradually changed along the direction from the first end to the second end.
In one embodiment, the heights of the plurality of protrusions are sequentially and incrementally arranged along the direction from the first end to the second end.
In one embodiment, the height of the protrusion is proportional to the distance from the protrusion to the first end in the direction from the first end to the second end.
In one embodiment, the protrusions are fiber protrusions.
In one embodiment, the membrane is made of a fibrous material.
In one embodiment, the diaphragm is made of any one of a polyethylene material, a polyester material, a nylon material or a porous silica gel material.
The invention also provides the following technical scheme:
a method for removing an oral adhesive, which is realized by the above-mentioned oral adhesive removing device; the method for taking out the oral cavity adhesive comprises the following steps:
adhering a first surface of a film to an outer surface of a dental crown of a dental prosthesis, a second surface of the film having an adsorption unit disposed away from the dental crown of the dental prosthesis;
the dental crown of the artificial tooth is arranged on the tooth or the implant by using an adhesive, and the oral adhesive overflowing after the tooth or the implant is in place is absorbed by the absorption unit;
and taking out the film after the oral cavity adhesive is hardened, and simultaneously taking out the redundant oral cavity adhesive.
In the application, the operation is convenient and simple, the oral cavity adhesive can be integrally stripped, and the taking-out efficiency is high; meanwhile, the oral cavity adhesive is prevented from stimulating and damaging periodontal tissues, the pain of a patient is effectively reduced, and the oral cavity adhesive has a wide application prospect.
In one embodiment, in the step of adhering the first surface of the diaphragm to the dental crown of the dental prosthesis:
the first surface of the diaphragm is adhered to the false tooth crown by chemical adhesive or nano adsorption method.
Compared with the prior art, the oral cavity adhesive taking-out device is provided with the adsorption unit, the membrane is adhered to the dental crown, and after the dental crown of the artificial tooth is adhered to the tooth or the implant by the oral cavity adhesive, the overflowed oral cavity adhesive is directly adsorbed by the adsorption unit; then, the oral cavity adhesive is directly taken out through the membrane, so that the oral cavity adhesive is prevented from being adhered to the dental crown or the gum of a patient, the oral cavity adhesive is very convenient to take out, and the operation is simpler.
Drawings
FIG. 1 is a schematic structural view illustrating the inoculation of a dental crown of a dental prosthesis to an implant or a dental prosthesis according to the present invention;
a schematic view of an oral cement removal device;
FIG. 2 is a schematic view of the oral cement removal device according to the present invention;
FIG. 3 is a side view of an oral cement removal device provided by the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3A in accordance with the present invention;
fig. 5 is a flow chart of the method for removing the oral cavity adhesive provided by the invention.
In the figure, an oral adhesive taking-out apparatus 100, a dental crown 101, a recess 101a, a diaphragm 10, a first surface 11, a second surface 12, a first end 13, a second end 14, an adsorption unit 20, a projection 21, a dental prosthesis 200, a dental prosthesis neck 201, a dental prosthesis crown 202, and an oral adhesive taking-out method 300 are shown.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the present invention provides an oral adhesive taking-out apparatus 100 for assisting a medical staff in taking out an oral adhesive when a dental crown 101 of a dental prosthesis is inoculated to an implant or a dental prosthesis 200 (i.e., teeth) using the adhesive. Preferably, a recess 101a is provided on the dental crown 101 of the dental prosthesis, and the implant or dental prosthesis 200 is fixed in the recess 101 a.
Specifically, with continued reference to fig. 2 and 3, the oral cement removal device 100 includes a membrane 10, the membrane 10 having a first surface 11 and a second surface 12 opposite to each other, the first surface 11 being smooth for adhering to the outer surface of the dental crown 101. Preferably, the first surface 11 may be attached to the outer surface of the dental crown 101 by chemical bonding or nano-adsorption techniques. The second surface 12 is a rough surface, an adsorption unit 20 is arranged on the second surface 12, and the adsorption unit 20 is used for adsorbing redundant oral cavity binders. It can be understood that, by providing the adsorption unit 20, the film 10 is adhered to the dental crown 101 of the dental prosthesis, and after the dental crown 101 of the dental prosthesis is adhered to the tooth or the implant with the oral cement, the overflowed oral cement is directly adsorbed by the adsorption unit 20; then, the oral cavity adhesive is directly taken out through the membrane 10, so that the oral cavity adhesive is prevented from being adhered to the dental crown or the gum of a patient, the oral cavity adhesive is very convenient to take out, and the operation is simpler.
It should be noted that, in the present embodiment, the words "first end 13", "second end 14", etc. are used for a plurality of times, only for more clearly and completely describing the structure and technical solution of the diaphragm 10, and are not intended to limit the present invention.
The diaphragm 10 is substantially rectangular, although in other embodiments the diaphragm 10 may have other shapes, such as oval, etc.
The dental implant 200 has a neck 201 and a crown 202 opposite each other, and the membrane 10 has a first end 13 and a second end 14 opposite each other, the first end 13 being disposed adjacent to the neck 201 and the second end 14 being disposed adjacent to the crown 202. The adsorption unit 20 is disposed adjacent to the first end 13.
Further, the membrane 10 may be made of a fiber material. Of course, the material of construction of the membrane 10 may be selected according to clinical needs and patient conditions.
Specifically, the fiber material may be any one of a polyethylene material, a polyester material, a nylon material, or a silicone material. Of course, the above-exemplified materials are characterized by, for example, polyethylene film: the product has the characteristics of low tensile strength, large tensile elongation, good surface gloss, transparency, heat sealability and the like; polyester film sheet: the composite film is a high-molecular plastic film which has excellent comprehensive performance, is colorless and transparent, and has luster, rigidity, hardness and toughness; nylon membrane: the coating has the characteristics of toughness, good transparency, good luster, high tensile strength, high heat resistance, high cold resistance, high oil resistance, high organic solvent resistance, high wear resistance, high puncture resistance and the like, and is relatively soft and high in oxygen resistance; porous silica gel membrane: has a series of excellent characteristics of higher softness, hydrophobicity, oxidation resistance, physiological inertia, no adhesion with human tissues and blood, good biocompatibility, no toxicity, no odor, no carcinogenesis and the like.
The size of the membrane 10 may be set according to the size of the dental crown 101. In the present embodiment, since the height of the dental crown 101 is generally not more than 10mm, the height of the membrane 10 (i.e., the width of the membrane 10) may be set to 10 mm; since the edge of the dental crown 101 of the artificial tooth is generally located within 2mm under the gum, the width of the roughened surface is set to 2 mm. Of course, in actual use, the excess film 10 in height and width can be cut free to match the size of the corresponding dental crown 101.
As shown in fig. 3 and 4, the adsorption unit 20 includes a plurality of protrusions 21, and the plurality of protrusions 21 are distributed along a direction from the first end 13 to the second end 14.
Further, along the direction from the first end 13 to the second end 14, the heights of the plurality of protrusions 21 are gradually arranged. Namely: the heights of the plurality of protrusions 21 are sequentially arranged in an increasing or decreasing manner along the direction from the first end 13 to the second end 14.
In this embodiment, the heights of the plurality of protrusions 21 are sequentially and incrementally arranged along the direction from the first end 13 to the second end 14. I.e. the lower the height of the protrusions 21 near the first end 13, the higher the height of the protrusions 21 near the second end 14. Here, this is provided to facilitate the attachment of the oral cement (i.e. to facilitate the absorption of the oral cement by the bulge 21) and also to avoid that said bulge 21 invaginates into the inner side of the dental prosthesis crown 101, i.e. into said recess 101, thereby hindering the dental prosthesis crown 101 from seating, adhering to a tooth or abutment.
Preferably, the height of the protrusion 21 is set in proportion to the distance from the first end 13 along the direction from the first end 13 to the second end 14.
Further, the material of the protrusion 21 is the same as that of the diaphragm 10, and the protrusion 21 and the diaphragm 10 are provided with an integrated structure, so that the processing and manufacturing of the diaphragm 10 can be facilitated, and the production cost of the diaphragm 10 can be reduced.
In the present embodiment, the protrusions 21 are fiber protrusions. Preferably, the protrusions 21 are soft fibrous protrusions.
As shown in fig. 5, the present invention further provides a method 300 for removing oral cavity adhesive, wherein the method 300 for removing oral cavity adhesive is implemented based on the oral cavity adhesive removing device 100 described in the present invention; the method 300 for removing the oral adhesive comprises the following steps:
step S1, adhering the first surface 11 of the film 10 on the dental crown 101, the second surface 12 of the film 10 having the adsorption unit 20 being disposed away from the dental crown 200;
step S2, the dental crown 101 of the artificial tooth is mounted on the tooth or the implant by the oral cavity adhesive, and the oral cavity adhesive overflowing after the tooth or the implant is in place is absorbed by the absorption unit 20; and
in step S3, after the oral cavity adhesive is hardened, the film 10 is removed and the excess oral cavity adhesive is removed, thereby completing the removal of the oral cavity adhesive.
It can be understood that, compared with the mechanical scraping method, the method for taking out the oral cavity adhesive is convenient to operate, the oral cavity adhesive can be integrally stripped, and the taking-out efficiency is high; meanwhile, the oral cavity adhesive is prevented from stimulating and damaging periodontal tissues, the pain of a patient is effectively reduced, and the oral cavity adhesive has a wide application prospect.
Further, in the step S1, the first surface 11 of the film 10 may be adhered to the outer surface of the dental crown 101 by a chemical adhesive or a nano-adsorption technique.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (8)

1. An oral cavity adhesive taking-out device is characterized by comprising a membrane, wherein the membrane is provided with a first surface and a second surface which are arranged in a reverse mode, the first surface is a smooth surface and is used for being adhered to the outer surface of a dental crown, the second surface is a rough surface, an adsorption unit is arranged on the second surface, and the adsorption unit is used for adsorbing redundant oral cavity adhesives;
the diaphragm is provided with a first end and a second end which are arranged in an opposite way, the first end is arranged close to the neck of the artificial tooth, the second end is arranged close to the crown of the artificial tooth, and the adsorption unit is arranged close to the first end;
the adsorption unit comprises a plurality of protrusions which are distributed along the direction from the first end to the second end.
2. The oral binder removal device of claim 1 wherein a plurality of said projections are arranged in a graduated height along said first end to said second end.
3. The oral cement removal device as claimed in claim 2, wherein the plurality of projections are arranged in a height increasing order in a direction from the first end to the second end.
4. The oral binder removal device of claim 3 wherein the height of said projection is proportional to the distance from said first end in the direction from said first end to said second end.
5. The oral binder removal device of claim 3, wherein the projections are fiber projections.
6. The oral adhesive extraction device of claim 1, wherein said diaphragm is made of a fibrous material.
7. A method for removing an oral adhesive, which is carried out by the oral adhesive removing device according to claim 1; the method for taking out the oral cavity adhesive is characterized by comprising the following steps of:
adhering a first surface of a film to an outer surface of a dental crown of a dental prosthesis, a second surface of the film having an adsorption unit disposed away from the dental crown of the dental prosthesis;
the dental crown of the artificial tooth is arranged on the tooth or the implant by using an adhesive, and the oral adhesive overflowing after the tooth or the implant is in place is absorbed by the absorption unit;
and taking out the film after the oral cavity adhesive is hardened, and simultaneously taking out the redundant oral cavity adhesive.
8. The method for removing an oral adhesive according to claim 7, wherein in the step of adhering the first surface of the film sheet to the dental crown of the dental prosthesis:
and adhering the first surface of the membrane to the artificial tooth crown by using a chemical adhesive or a nano adsorption method.
CN201811543116.4A 2018-12-17 2018-12-17 Oral cavity adhesive agent taking-out device and oral cavity adhesive agent taking-out method thereof Active CN109394371B (en)

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CN114431979B (en) * 2022-02-07 2023-09-26 徐昌胤 Oral cavity adhesive taking-out device and taking-out method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1571654A (en) * 2001-08-17 2005-01-26 史密丝克莱恩比彻姆有限公司 Oral care substance delivery strip
CN204260852U (en) * 2014-09-04 2015-04-15 赵计林 Orthodontic bracket accurately locates indirect bonding device
JP2015093181A (en) * 2013-11-08 2015-05-18 株式会社広栄社 Calcium particle-impregnated nonwoven fabric cleaning tool and manufacturing method thereof
CN105950034A (en) * 2016-04-29 2016-09-21 首都医科大学附属北京口腔医院 Method for improving dentin bonding with negative pressure
CN106420077A (en) * 2016-08-09 2017-02-22 宁波口腔医院有限公司 Device for integrally lowering posterior tooth segments
CN106667599A (en) * 2017-02-27 2017-05-17 北京大学口腔医学院 Auxiliary device for in-vitro bonding of dental implant crown and abutment and use method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050191599A1 (en) * 2004-02-27 2005-09-01 Randy Slack Denture adhesive removal method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1571654A (en) * 2001-08-17 2005-01-26 史密丝克莱恩比彻姆有限公司 Oral care substance delivery strip
JP2015093181A (en) * 2013-11-08 2015-05-18 株式会社広栄社 Calcium particle-impregnated nonwoven fabric cleaning tool and manufacturing method thereof
CN204260852U (en) * 2014-09-04 2015-04-15 赵计林 Orthodontic bracket accurately locates indirect bonding device
CN105950034A (en) * 2016-04-29 2016-09-21 首都医科大学附属北京口腔医院 Method for improving dentin bonding with negative pressure
CN106420077A (en) * 2016-08-09 2017-02-22 宁波口腔医院有限公司 Device for integrally lowering posterior tooth segments
CN106667599A (en) * 2017-02-27 2017-05-17 北京大学口腔医学院 Auxiliary device for in-vitro bonding of dental implant crown and abutment and use method thereof

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