Entry prevention structure and entry prevention device including same for dentistry

Abstract

The present invention relates to an entry prevention structure and entry prevention device including same for dentistry, the entry prevention structure comprising: a guide part curved in the form of an arch; and an entry prevention part coupled to the inside of the guide part, wherein the entry prevention part, inserted in the mouth of a patient along with the guide part, prevents foreign items from entering the esophagus or airway of the patient due to the guide part being in close contact with the palate, inner surface of the cheeks, and the tongue of the patient. In addition, the entry prevention device for dentistry comprises: the entry prevention structure; and an oral cavity-opening device, at least a portion which can be attached to the guide part and which controls the distance between the upper and lower molars.

Description

Dental ingress prevention structure and dental ingress prevention device including the same

[0001] The present invention relates to a dental ingress prevention structure and a dental ingress prevention device including the same, and more specifically, to a dental ingress prevention structure and a dental ingress prevention device including the same for preventing foreign substances from entering a patient's airway or esophagus during dental treatment.

[0002]

[0003] In most dental treatments, the patient lies on a dental chair while various instruments and materials are moved around inside the oral cavity. During this process, it is common for prosthetics or dental instruments to slip from the medical professional's hands, which may be contaminated with the patient's saliva, and fall into the mouth.

[0004] According to a related study (The survey on foreign body ingestion and aspiration during the dental prosthetic treatment, Gi-Tae Bang, Han-Sol Jeon, Seon-Ki Lee, Jae-In Lee, Jin-Han Lee*), 99.4% of the 157 dentists who responded to the question asking whether they had actually dropped foreign substances into a patient's oral cavity during the treatment process said that they had.

[0005] In addition, when asked about how to handle a foreign object dropped in a patient's mouth, the most common answer was "turning the patient's head to the side" at 67.9%. When asked whether they had experienced swallowing or aspiration during treatment, 53.5% answered "yes." When asked about preventive measures to avoid swallowing or aspiration of foreign objects, the most frequent answer was "placing gauze in the mouth when there is a risk of dropping instruments" at 81.5%.

[0006] In most cases of swallowing accidents, the object is excreted as it passes through the esophagus; however, if a sharp instrument or similar object is ingested, an endoscope is attempted to remove it, although there are rare reports of cases requiring open surgery.

[0007]

[0008] (Utility Model Document 1) Republic of Korea Registered Utility Model Publication No. 20-0483411 (May 14, 2007)

[0009]

[0010] The objective of the present invention to solve the above-mentioned problem is to provide a dental inflow prevention structure that prevents foreign substances from entering the patient's airway or esophagus during dental treatment through a guide portion detachable from an oral opener and an inflow prevention portion connected to the guide portion by a connecting portion, and a dental inflow prevention device including the same.

[0011]

[0012] The technical problems that the present invention aims to solve are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art to which the present invention belongs from the description below.

[0013]

[0014] The present invention provides a dental ingress prevention structure for achieving the above-mentioned purpose, comprising: a guide portion bent into an arch shape; and an ingress prevention portion coupled to the inner side of the guide portion; wherein the ingress prevention portion is inserted into the patient's mouth together with the guide portion, and the guide portion is in close contact with the patient's palate, the inner surface of the patient's cheek, and the patient's tongue, thereby preventing foreign substances from entering the patient's esophagus or trachea.

[0015] In addition, the present invention provides a dental ingress prevention structure for achieving the above-mentioned purpose, comprising: a guide portion bent in an arch shape; an ingress prevention portion located on the inner side of the guide portion; and a connecting portion connecting the guide portion and the ingress prevention portion so as to be located between the guide portion and the ingress prevention portion, wherein the ingress prevention portion, when inserted into the patient's mouth together with the guide portion and the connecting portion, prevents foreign substances from entering the patient's esophagus or trachea as the guide portion adheres to the patient's palate, the inner surface of the patient's cheek, and the patient's tongue.

[0016] In an embodiment of the present invention, the guide member comprises: an insertion member having a tubular shape made of an elastic material and having an insertion member hole formed therein; and a guide variable member inserted into the insertion member and having a shape that changes by an external force of a user; wherein the guide variable member may be characterized by being variably deformed according to the oral structure of the patient and maintaining the deformed state.

[0017] In an embodiment of the present invention, the guide member may be characterized by including an insertion member having a tubular shape made of an elastic material and having an insertion member hole formed therein.

[0018] In an embodiment of the present invention, the guide member further comprises a sealing member formed continuously along the outer surface of the insertion member in an arc shape on the outer surface of the insertion member; and the sealing member may be characterized by preventing foreign substances from entering the patient's esophagus or trachea as it adheres to the patient's palate, the inner surface of the patient's cheek, and the patient's tongue.

[0019] In an embodiment of the present invention, the connecting portion comprises: a connecting member made of an elastic material formed to correspond to the outer periphery of the inflow prevention portion and connecting the guide portion and the inflow prevention portion; and a connecting variable member inserted into the interior of the connecting member; wherein the connecting variable member may be characterized by being variably deformed according to the oral structure of the patient and maintaining the deformed state.

[0020] In an embodiment of the present invention, the inflow prevention part may be characterized by being made of an elastic material.

[0021] In an embodiment of the present invention, the inflow prevention part may be characterized by having a plurality of breathing holes formed with a size of 0.4㎛ to 0.6㎛.

[0022] In addition, the present invention provides a dental inflow prevention device characterized by comprising: a dental inflow prevention structure according to the above description for achieving the above-mentioned purpose; and an oral opening device, at least a portion thereof being detachable from the guide portion and adhering to the upper molar and lower molar of the patient to adjust the distance between the upper molar and the lower molar.

[0023]

[0024] The effect of the present invention according to the above configuration is that it can prevent safety accidents in advance by preventing foreign substances from entering the patient's airway or esophagus during dental treatment through a guide part that is detachable from the oral opener and an inflow prevention part that is connected to the guide part by a connecting part.

[0025]

[0026] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description of the invention or the claims.

[0027]

[0028] FIG. 1 is a plan view in one direction showing a dental ingress prevention structure according to a first embodiment of the present invention.

[0029] Figures 2 (a), (b), (c), and (d) are cross-sectional views along the line A-A' of Figure 1.

[0030] FIG. 3 is a plan view from one direction showing a dental inflow prevention structure according to a second embodiment of the present invention.

[0031] FIG. 4 is a plan view from one direction showing a dental inflow prevention device according to an embodiment of the present invention.

[0032] FIG. 5 is a plan view from one direction showing a dental inflow prevention structure and an oral opening device combined, provided in a dental inflow prevention structure according to one embodiment of the present invention.

[0033]

[0034] A most preferred embodiment according to the present invention comprises: a guide portion bent into an arch shape; and an inflow prevention portion coupled to the inner side of the guide portion; wherein the inflow prevention portion is inserted into the patient's mouth together with the guide portion, and the guide portion is in close contact with the patient's palate, the inner surface of the patient's cheek, and the patient's tongue, thereby preventing foreign substances from entering the patient's esophagus or trachea.

[0035] A most preferred embodiment according to the present invention is characterized by comprising: a dental inflow prevention structure as described above; and an oral opener in which at least a portion is detachably attached to the guide and is in close contact with the patient's upper molars and lower molars to adjust the distance between the upper molars and the lower molars.

[0036]

[0037] The present invention will be described below with reference to the attached drawings. However, the present invention may be implemented in various different forms and is therefore not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification have been given similar reference numerals.

[0038] Throughout the specification, when it is stated that a part is "connected (connected, in contact, combined)" with another part, this includes not only cases where they are "directly connected," but also cases where they are "indirectly connected" with other members interposed between them. Furthermore, when it is stated that a part "includes" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but rather allows for the inclusion of additional components.

[0039] The terms used herein are used merely to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to indicate the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0040] Embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0041]

[0042] 1. Dental ingress prevention structure (100) - 1st embodiment

[0043] Hereinafter, a dental ingress prevention structure according to the first embodiment of the present invention will be described with reference to (a) and (b) of FIGS. 1 and FIGS. 2.

[0044] FIG. 1 is a plan view from one direction showing a dental ingress prevention structure according to a first embodiment of the present invention. FIG. 2 (a), (b), (c), and (d) are cross-sectional views along the line A-A' of FIG. 1. FIG. 2 (a) shows a cross-sectional view along the line A-A' of a dental ingress prevention structure (100) according to a first embodiment of the present invention.

[0045] Referring to FIGS. 1 and FIGS. 2 (a), a dental inflow prevention structure (100) according to one embodiment of the present invention includes a guide portion (110) and an inflow prevention portion (120).

[0046] The guide section (110) is formed to be bent into an arch shape.

[0047] In addition, the guide (110) is made of a flexible material and has a hollow tube shape.

[0048] For example, the guide (110) may be made of a material that can be easily stretched and returned to its original shape, such as rubber.

[0049] Referring to FIG. 2(a), the guide member (110) includes an insertion member (111) in which an insertion member hole (111a) is formed, and a guide variable member (113).

[0050] The insert member (111) is made of an elastic material and has an insert member hole (111a) formed inside.

[0051] Specifically, the insert member (111) is formed long in one direction and is open on both sides.

[0052] In addition, an insertion member hole (111a) that penetrates along the insertion member (111) is formed in the central part of the insertion member (111).

[0053] The guide variable member (113) is inserted into the insert member (111) and its shape changes due to an external force from the user.

[0054] For example, the guide variable member (113) may be a wire in the form of a wire, but is not limited thereto, and may be a bellows structure that is variable due to a slight external force other than a wire and maintains the variable state after being variable.

[0055] The above-mentioned guide variable member (113) is variably deformed according to the patient's oral structure and maintains the deformed state.

[0056] FIG. 2(b) illustrates a modified example of a dental inflow prevention structure (100) according to the first embodiment of the present invention.

[0057] Additionally, the guide member (110) may further include a contact member (112) in addition to the aforementioned insert member (111) and guide variable member (113) to provide a modified example of the first embodiment shown in FIG. 2 (b).

[0058] The contact member (112) is formed continuously along the outer surface of the insertion member (111) in an arc shape on the outer surface of the insertion member (111).

[0059] That is, the contact member (112) may have a tile shape and may be made of a resilient material like the insert member (111).

[0060] The above-mentioned adhesive member (112) is in close contact with the patient's palate, the inner surface of the patient's cheek, and the patient's tongue, thereby preventing foreign substances from entering the patient's esophagus or airway.

[0061] Referring to (a) of FIGS. 1 and 2, the inflow prevention part (120) is coupled to the inside of the guide part (110).

[0062] The above-mentioned inflow prevention part (120) prevents foreign substances from entering the patient's esophagus or trachea when inserted into the patient's mouth together with the guide part (110) and the connecting part (130), as the guide part (110) adheres to the patient's palate, the inner surface of the patient's cheek, and the patient's tongue.

[0063] In addition, the inflow prevention part (120) may be made of a flexible material like the guide part (110).

[0064] More specifically, the inflow prevention part (120) may have a flat film shape to prevent foreign substances from entering the esophagus or airway.

[0065] In addition, the outer part of the inflow prevention part (120) is formed to correspond to the guide part (110) which is bent in an arch shape.

[0066] For example, the inflow prevention part (120) may have a semi-elliptical shape, but is not limited thereto and may be made of an elliptical shape, a square shape, etc.

[0067] However, considering the oral structure of the human body, it is particularly desirable to form a semi-elliptical or elliptical shape to correspond to the oral structure in order to prevent the ingress of foreign substances.

[0068] Meanwhile, as another embodiment, the inflow prevention part (120) may be formed in a semi-elliptical shape as described above and may have a plurality of breathing holes formed in a flat thin film shape.

[0069] Specifically, the inflow prevention part (120) may have a plurality of breathing holes (not shown) perforated with a size of 0.4㎛ to 0.6㎛.

[0070] Accordingly, the inflow prevention part (120) can prevent not only foreign substances that may enter the patient's esophagus or airway, but also dust or fine dust larger than 0.4㎛ to 0.6㎛.

[0071] Generally, when receiving dental treatment, the procedure is performed with the patient's mouth open, so there is a possibility that the patient may unconsciously breathe through their mouth.

[0072] In addition, the inflow prevention part (120) according to another embodiment serves as a passage through which a patient can easily breathe through their mouth via a plurality of breathing holes.

[0073] A plurality of breathing holes formed in the inflow prevention part (120) according to the other embodiment described above may be effective during dental treatment for children or the elderly.

[0074]

[0075] 2. Dental ingress prevention structure (100) - 2nd embodiment

[0076] Hereinafter, a dental ingress prevention structure according to a second embodiment of the present invention will be described with reference to FIGS. 2 (c), (d) and FIG. 3, provided that the description of components identical to those in the first embodiment is omitted, and components different from those in the first embodiment are described in detail.

[0077] Figure 2(c) shows a cross-sectional view along line A-A' of a dental inflow prevention structure (100) according to a second embodiment of the present invention.

[0078] Referring to FIG. 2(c) and FIG. 3, a dental inflow prevention structure (100) according to one embodiment of the present invention includes a guide part (110), an inflow prevention part (120), and a connecting part (130).

[0079] The guide (110) is made of a flexible material.

[0080] Specifically, the guide portion (110) has a tubular shape in which an insertion member hole (111a) is formed inside, and since this guide portion (110) is identical to the guide portion (110) according to the first embodiment, a detailed description thereof is to be made by referring to the above.

[0081] The second embodiment differs from the first embodiment in that the guide variable member (113) is not inserted into the insert member (111) provided in the guide part (110) as shown in (c) of FIG. 2.

[0082] Figure 2(d) illustrates a modified example of a dental ingress prevention structure (100) according to a second embodiment of the present invention.

[0083] Additionally, the guide member (110) may further include a contact member (112) in addition to the aforementioned insert member (111) to provide a modified example of the second embodiment shown in (d) of FIG. 2.

[0084] The contact member (112) is formed continuously along the outer surface of the insertion member (111) in an arc shape on the outer surface of the insertion member (111).

[0085] The above-mentioned adhesive member (112) is in close contact with the patient's palate, the inner surface of the patient's cheek, and the patient's tongue, thereby preventing foreign substances from entering the patient's esophagus or airway.

[0086] The inflow prevention part (120) is located on the inner side of the guide part (110) and is connected to the guide part (110) by a connecting part (130).

[0087] In addition, the inflow prevention part (120) is made of a flexible material.

[0088] Specifically, the inflow prevention part (120) has a plurality of breathing holes formed with a size of 0.4㎛ to 0.6㎛.

[0089] Since the above-described inflow prevention part (120) is substantially the same as the inflow prevention part (120) according to the first embodiment, a detailed description thereof is to be made by referring to the above.

[0090] The connecting part (130) connects the guide part (110) and the inflow prevention part (120) so as to be located between the guide part (110) and the inflow prevention part (120).

[0091] The connecting part (130) for this purpose includes a connecting member (131) and a connecting variable member (132).

[0092] The connecting member (131) is formed to correspond to the outer periphery of the inflow prevention part (120) to connect the guide part (110) and the inflow prevention part (120), and is made of an elastic material.

[0093] In addition, the connecting member (131) is formed in an arch shape, like the guide member (111).

[0094] The connecting variable member (132) is inserted into the interior of the connecting member (131).

[0095] For example, the connecting variable member (132) may be a wire in the form of a wire, such as the guide variable member (113), but is not limited thereto, and may be a bellows structure that is variable due to a slight external force other than a wire and maintains the variable state after being variable.

[0096] The above-mentioned connecting variable member (132) is variably deformed according to the patient's oral structure and maintains the deformed state.

[0097]

[0098] 2. Dental ingress prevention device (300) - 1st and 2nd embodiments

[0099] Hereinafter, a dental inflow prevention device according to the first and second embodiments of the present invention will be described with reference to FIGS. 1 to 5.

[0100] FIG. 4 is a plan view from one direction showing a dental inflow prevention device according to an embodiment of the present invention.

[0101] Referring to FIGS. 1 to 4, a dental inflow prevention device (300) according to one embodiment of the present invention includes a dental inflow prevention structure (100) and an oral opening device (200) according to the first and second embodiments described above.

[0102] The dental ingress prevention structure (100) according to the first and second embodiments has been described in detail above, so for a detailed description thereof, please refer to the above.

[0103] FIG. 5 is a plan view from one direction showing a dental inflow prevention structure and an oral opening device combined, provided in a dental inflow prevention structure according to one embodiment of the present invention.

[0104] The oral opening device (200) is at least partially detachable from the guide portion (110) and is in close contact with the patient's upper and lower molars to adjust the distance between the upper and lower molars.

[0105] Referring to FIG. 5, the oral opening device (200) includes an oral opening (210), a buffer (220), and an opening control (230).

[0106] The oral opening (210) includes a first oral opening (211) and a second oral opening (212).

[0107] The first oral opening (211) includes a first oral opening body (211a), a first oral opening member (211b), and a first oral opening handle (211c).

[0108] The first oral opening body (211a) is extended longitudinally.

[0109] The first oral opening member (211b) extends from one end of the first oral opening body (211a) to have an arch shape that is bent twice in opposite directions.

[0110] The first oral opening handle (211c) has a ring shape and is formed at one end of the first oral opening body (211a).

[0111] The first oral opening body (211a), the first oral opening member (211b), and the first oral opening handle (211c) described above are formed integrally.

[0112] The second oral opening (212) includes a second oral opening body (212a), a second oral opening member (212b), and a second oral opening handle (212c).

[0113] The second oral opening body (212a) is extended longitudinally and hinge-connected to one side of the first oral opening body (211a).

[0114] Accordingly, the first oral opening body (211a) and the second oral opening body (212a) can be rotated like scissors with respect to one side of the first oral opening body (211a).

[0115] The second oral opening member (212b) extends from one end of the second oral opening body (212a) to have an arch shape that is bent twice in opposite directions, and is formed symmetrically with respect to the first oral opening member (211b).

[0116] The second oral opening handle (212c) has a ring shape and is formed at one end of the second oral opening body (212a) and is positioned symmetrically with respect to the first oral opening handle (211c).

[0117] The above-mentioned second oral opening body (212a), second oral opening member (212b), and second oral opening handle (212c) are formed integrally.

[0118] The buffer section (220) includes a first buffer member (221) and a second buffer member (222).

[0119] The first buffer member (221) and the second buffer member (222) have a shape in which one side is open and the other side is closed and the interior is empty.

[0120] Additionally, the first cushioning member (221) and the second cushioning member (222) are preferably made of an elastic material that expands when an external force is applied and returns to its original shape when the external force is removed.

[0121] The first buffer member (221) described above is positioned to surround the end portion of the first oral opening member (211b), and the second buffer member (222) is positioned to surround the end portion of the second oral opening member (212b).

[0122] The opening control unit (230) includes a guide member (231) and a stopper (232).

[0123] The guide member (231) has a hot-shaped arc and is coupled to the central part of the second oral opening body (212a).

[0124] Additionally, the convex part of the guide member (231) is positioned to face downward, and the indented part of the guide member (231) is positioned to face upward.

[0125] In addition, a plurality of first protruding members are formed in a sawtooth shape on the outer surface of the guide member (231).

[0126] The stopper (232) is rotatable as it is hinged to the center of the first oral opening body (211a).

[0127] In addition, at least a portion of the stopper (232) has a plurality of second protrusions formed in a sawtooth shape to correspond to a plurality of first protrusions.

[0128] When the above-mentioned stopper (232) rotates counterclockwise, it is separated from the guide member (231), whereas when it rotates clockwise, it comes into contact with the guide member (231), and as the plurality of first protrusions provided on the guide member (231) are connected to the plurality of second protrusions provided on the stopper (232), the first oral opening (211) and the second oral opening (212) are fixed.

[0129]

[0130] Hereinafter, the operation of a dental inflow prevention device according to an embodiment of the present invention will be described with reference to FIGS. 4 and FIGS. 5.

[0131] First, when the dental inflow prevention structure (100) and the oral opening device (200) are prepared as shown in FIG. 4, the end portion of the first oral opening member (211b) and the end portion of the second oral opening member (212b) are inserted while the one side and the other side of the insertion member (111) are spread open.

[0132] Accordingly, as shown in FIG. 5, one side of the insertion member (111) surrounds the first cushioning member (221) surrounding the end portion of the first oral opening member (211b) and connects the first oral opening (211) and the guide portion (110), and the other side of the insertion member (111) surrounds the second cushioning member (222) surrounding the end portion of the second oral opening member (212b) and connects the second oral opening (212) and the guide portion (110).

[0133] Next, after inserting the dental inflow prevention structure (100) into the patient's mouth, the connecting part (130) is adjusted to fit the patient's oral structure, and the inflow prevention part (120) is positioned to face the patient's oral cavity. At this time, the connecting part (130) is adjusted so that the guide part (110) is in close contact with the patient's palate, the inner surface of the patient's cheek, and the patient's tongue.

[0134] Next, with the user's fingers gripping the first oral opening handle (211c) and the second oral opening handle (212c), the first and second oral opening handles (211c, 212c) are adjusted so that the first and second cushioning members (221, 222) are in close contact with the patient's upper and lower molars, respectively, and then the distance between the patient's upper and lower molars is adjusted so that the patient's mouth opens in a manner suitable for dental treatment. At this time, the stopper (232) is rotated counterclockwise, and once the distance between the patient's upper and lower molars is secured, the stopper (232) rotates clockwise to fix the first and second oral openings (211, 212).

[0135]

[0136] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will understand that other specific forms can be easily modified without altering the technical spirit or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.

[0137] The scope of the present invention is defined by the claims set forth below, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts thereof should be interpreted as being included within the scope of the present invention.

[0138] <Explanation of Symbols>

[0139] 100: Dental ingress prevention structure

[0140] 110: Information Department

[0141] 111: Insertion member

[0142] 111a: Insertion member hole

[0143] 112: Contact member

[0144] 113: Guide variable member

[0145] 120: Inflow prevention unit

[0146] 130: Connection

[0147] 131: Connecting member

[0148] 132: Connecting variable member

[0149] 200: Oral retractor

[0150] 210: Oral opening

[0151] 211: First oral opening

[0152] 211a: First oral opening body

[0153] 211b: First oral opening member

[0154] 211c: First oral opening handle

[0155] 212: Second oral opening

[0156] 212a: Second oral opening body

[0157] 212b: Second oral opening member

[0158] 212c: Second oral opening handle

[0159] 220: Buffer

[0160] 221: First buffer member

[0161] 222: Second buffer member

[0162] 230: Opening control unit

[0163] 231: Lack of guide

[0164] 232: Stopper

[0165] 300: Dental ingress prevention device

Claims

1. An arched guide; and Includes an inflow prevention part coupled to the inner side of the above guide part; A dental ingress prevention structure characterized by the above-described ingress prevention member being inserted into the patient's mouth together with the above-described guide member, and the guide member being in close contact with the patient's palate, the inner surface of the patient's cheek, and the patient's tongue, thereby preventing foreign substances from entering the patient's esophagus or trachea.

2. Arch-shaped guide; An inflow prevention part located on the inner side of the above guide part; and A connecting part connecting the guide part and the inflow prevention part so as to be located between the guide part and the inflow prevention part; is included. A dental ingress prevention structure characterized by the above-mentioned ingress prevention member being inserted into the patient's mouth together with the above-mentioned guide member and the above-mentioned connecting member, and the guide member being in close contact with the patient's palate, the inner surface of the patient's cheek, and the patient's tongue, thereby preventing foreign substances from entering the patient's esophagus or trachea.

3. In Paragraph 1, The above guide section is, An insert member having a tubular shape made of a resilient material and having an insert member hole formed inside; and It includes a guide variable member inserted inside the above-mentioned insert member and whose shape changes due to an external force from a user; A dental ingress prevention structure characterized by the above-mentioned guide variable member being variably deformed according to the oral structure of the patient and maintaining the deformed state.

4. In Paragraph 2, The above guide member is characterized by including an insertion member having a tubular shape made of an elastic material and having an insertion member hole formed inside; a dental inflow prevention structure.

5. In Paragraph 3 or 4, The above guide member further includes a contact member formed continuously along the outer surface of the insertion member in an arc shape on the outer surface of the insertion member. A dental ingress prevention structure characterized by the above-mentioned adhesion member being in close contact with the palate of the patient, the inner surface of the patient's cheek, and the tongue of the patient, thereby preventing the foreign substance from entering the esophagus or trachea of ​​the patient.

6. In Paragraph 2, The above connecting part is, A connecting member formed to correspond to the outer periphery of the above-mentioned inflow prevention member, connecting the guide member and the above-mentioned inflow prevention member, and made of an elastic material; and A connecting variable member inserted inside the above connecting member; comprising, A dental ingress prevention structure characterized by the above-mentioned connecting variable member being variably deformed according to the oral structure of the patient and maintaining the deformed state.

7. In Paragraph 1 or 2, A dental inflow prevention structure characterized in that the above-mentioned inflow prevention part is made of an elastic material.

8. In Paragraph 7, A dental inflow prevention structure characterized by having a plurality of breathing holes formed with a size of 0.4㎛ to 0.6㎛ in the above-mentioned inflow prevention part.

9. A dental ingress prevention structure according to claim 1 or 2; and A dental inflow prevention device characterized by including an oral retractor, wherein at least a portion thereof is detachable from the guide portion and adheres to the patient's upper and lower molars to adjust the distance between the upper and lower molars.

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