WO2017099282A1 - 치과용 보철의 제거부재 및 그 제조방법 - Google Patents

치과용 보철의 제거부재 및 그 제조방법 Download PDF

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Publication number
WO2017099282A1
WO2017099282A1 PCT/KR2015/013670 KR2015013670W WO2017099282A1 WO 2017099282 A1 WO2017099282 A1 WO 2017099282A1 KR 2015013670 W KR2015013670 W KR 2015013670W WO 2017099282 A1 WO2017099282 A1 WO 2017099282A1
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WO
WIPO (PCT)
Prior art keywords
head
millimeters
prosthesis
screw
range
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Application number
PCT/KR2015/013670
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English (en)
French (fr)
Korean (ko)
Inventor
윤철수
Original Assignee
(주) 디에스
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Filing date
Publication date
Application filed by (주) 디에스 filed Critical (주) 디에스
Publication of WO2017099282A1 publication Critical patent/WO2017099282A1/ko

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/14—Dentists' forceps or the like for extracting teeth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/06—Implements for therapeutic treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/16—Dentists' forceps or clamps for removing crowns

Definitions

  • the present invention relates to a simple dental prosthesis removal member, and more particularly to the prosthesis covered on the outer surface of the tooth without using complicated and cumbersome mechanical devices, the user does not damage the surrounding teeth at all,
  • the present invention relates to a removal member of a dental prosthesis and a method for manufacturing the prosthesis which can be removed simply and simply.
  • the prosthesis made of alloy material such as gold or silver is put on it to restore the function of the original teeth.
  • prostheses have a lifespan for a certain period of time depending on the patient's brushing habits and the habit of chewing food, and when the life span has elapsed or when a new tooth needs to be corrected or treated, it is not necessary to remove the prosthesis on the teeth. Is being raised.
  • dental treatment when the prosthesis is to be removed, there is a need to carefully consider the position of the patient to be treated with teeth. Although it is called a patient in dental treatment, people who are physically and mentally healthy face dental treatment in a normal state. Therefore, the dental patient recognizes the pain generated during the treatment of the tooth, the noise of the drill operation generated during the treatment process, the various foreign substances generated during the drilling operation, and the like, and the various instruments made in the small oral cavity and the same. How to use is almost recognized as normal. In this regard, a significant degree of trust must be established between the patient and the therapist, and mechanical instruments used for dental treatment should not be perceived as threatening to the patient, and should not provide aversion to dental treatment. very important.
  • the prosthesis may not easily fall out, or an excessive force may cause discomfort to the patient.
  • the target tooth since the target tooth has already weakened the holding force, the tooth may be damaged even with a small force, and in some cases, the tooth may be unexpectedly extracted.
  • the conventional method there is a problem that often causes a phenomenon to bring a wound in the mouth of the patient.
  • the prosthesis removal device introduced above is a mechanical combination of a number of parts, there is a disadvantage that can not be sure whether or not can be used in the mouth of the patient.
  • the dental patient even if such devices can enter the patient's oral cavity, there is no guarantee that the dental patient will be able to allow such devices to enter the patient's own oral cavity for treatment.
  • Dental care involves the removal of the prosthesis by mentally and physically normal people only to cure the damage to the teeth, so that the normal dental patient sees such instruments directly or feels in the process of treatment. First of all, it is important to consider that the mechanism for removing the prosthesis does not feel like a threat.
  • the present invention has been made to solve the above-described problems, the object of the present invention is to use a prosthesis on the outer surface of the teeth without using complicated and cumbersome mechanical mechanism, the user does not damage the surrounding teeth at all,
  • the present invention provides a member and a method for manufacturing the prosthetic dental prosthesis that can be removed simply and simply the prosthesis covered without damaging the tooth at all.
  • the present invention may include a first head and a second head that can be coupled to the manual handle mechanism and can transmit the rotational force to the lower side in accordance with the rotation of the manual handle mechanism And a head including an elastic head for relieving metallic impact force between the manual handle and the first head and the second head and replenishing the elastic coupling force therebetween; Is connected to the lower end of the head, when rotating the manual handle mechanism in the state mounted on the manual handle mechanism, by applying a force in the tooth direction to assist in forming a screw connection between the prosthesis and the screw portion Rotary compression unit; A screw part connected to a lower end of the rotary pressing part and inserted into a hole of the prosthetic part when the manual rotating mechanism is rotated by the manual handle mechanism to form a screw connection with the prosthesis part; A bottom surface portion connected to the lower end of the screw portion and having a smaller diameter than the diameter of the screw portion, the bottom surface being a flat plane or a curved surface smoothly rounded in the tooth direction; And a head including an elastic head for relieving metallic impact force
  • the manufacturing method of the removal member of the dental prosthesis according to the present invention is equipped with a steel bar made of stainless steel or titanium steel in the composite machine and the diameter of the steel bar is formed in the range of 4 millimeters to 10 millimeters, and then A first processing step (S 210) for forming a head by milling using a cutting blade at an end portion, wherein the head has a length ranging from 3 millimeters to 8 millimeters; A second machining step (S 220) of stopping the milling operation and forming an elastic coupling groove for mounting the elastic head in the central portion of the head by lathe using a cutting chisel; By stopping the operation of the cutting chisel and continuing the lathe while forming a gentle inclination from the lower end of the rotary pressing portion to the bottom surface portion, thereby providing an inclined surface capable of forming a rotary pressing portion and simultaneously forming a screw portion.
  • a first processing step (S 210) for forming a head by milling using a cutting blade at an
  • the present invention forms a screw coupling to the prosthesis covered on the tooth to be treated, and then overcomes the coupling between the teeth and the prosthesis by reaction by screwing, and slightly detach the prosthesis from the tooth, By lifting the dental prosthesis removal member, the prosthesis can be easily and easily separated and removed from the tooth.
  • the dental prosthesis removal member In the dental prosthesis removal member according to the present invention, if the user inserts into the oral cavity of a dental patient and inserts it into the prosthesis, the prosthesis naturally falls off the tooth, as long as the hand handle mechanism is slowly turned. In slightly lifting the present invention, there is an advantage that the prosthesis is lightly separated from the teeth.
  • the present invention is formed to be as small as a conventional screw, so that even when the dental patient directly sees the product of the present invention, there is an advantage that does not feel any threatening feelings or rejection.
  • the present invention is inserted into the dental prosthesis of the patient, so that the user only need to slowly turn by hand, so as not to cause any damage to the dental patient, or any form of damage or wound in other teeth or oral cavity, the user There is also an advantage that can be used safely from the side.
  • FIG. 1 is a schematic perspective view of a removal member of a dental prosthesis according to the present invention
  • Figure 2 is an exploded perspective view of the removal member of the dental prosthesis according to the present invention
  • Figure 3a is a cross-sectional view of the removal member of the dental prosthesis according to the present invention.
  • Figure 3b is a cross-sectional view of another embodiment of the removal member of the dental prosthesis according to the present invention.
  • Figure 4a is an exemplary embodiment of the removal member of the dental prosthesis according to the present invention.
  • Figure 4b is another exemplary embodiment of the removal member of the dental prosthesis according to the present invention.
  • 5a to 5c are sequential schematic diagrams for removing prostheses using the present invention.
  • Figure 6 is a schematic block diagram showing the step of manufacturing a removal member of the dental prosthesis according to the present invention.
  • FIG. 7 is a schematic diagram of mechanisms for removing a conventional dental prosthesis.
  • the present invention provides a dental prosthesis removal member 100 that can easily and easily separate and remove the prosthesis covered on the tooth outer surface.
  • FIG. 1 is a perspective view schematically showing the removal member 100 of the dental prosthesis according to the present invention
  • Figure 2 is a state in which the removal member 100 of the dental prosthesis of Figure 1 separated from the elastic head 116 The disassembled state perspective view shown.
  • FIG. 3A is a cross-sectional view of the removal member 100 of the dental prosthesis according to the present invention
  • FIG. 3B shows another embodiment of FIG. 3A, and shows a state in which the screw 130 is slightly changed. have.
  • the removal member 100 of the dental prosthesis according to the present invention includes a head 110 that can be coupled to a manual handle mechanism 10.
  • the head 110 is to be coupled to the hand handle mechanism 10, and includes a first head 112 at the top and a second head 114 below it, the first An elastic head 116 is included between the head 112 and the second head 114.
  • the manual handle mechanism 10 may be rotated by combining the first head 112, the second head 114 and the elastic head 116 in a state that the user directly grasped by hand.
  • a mechanism that is present it means a handle key or a latch member or the like capable of operating the mechanism by hand.
  • the present invention does not require the use of the complex machinery provided in the prior art.
  • the first head 112 is located at the top of the present invention, it is preferable to form a triangular, square, hexagonal, or octagonal shape that can be coupled to the manual handle mechanism 10.
  • the second head 114 should also be manufactured in the same shape as the first head 112, and is required to compensate for the coupling force between the first head 112 and the manual handle mechanism 10.
  • an area that can be coupled to the manual handle mechanism 10 is a part of the first head 112. It is not desirable because it will only be limited.
  • the elastic head 116 is present between the first head 112 and the second head 114 to divide the first head 112 and the second head 114 from each other.
  • the elastic head 116 may reduce the contact area between the manual handle mechanism 10 and the first head 112 and the second head 114 to weaken the mutual coupling force.
  • an advantage of alleviating the metallic shock generated between the first head 112 and the second head 114. Will be provided. This alleviates the metallic impact force transmitted to the patient's teeth, allowing the patient to maintain a comfortable feeling during the treatment process.
  • the dental prosthesis of the present invention when the elastic head 116 is inserted into the first handle 112 and the second head 114 by combining the manual handle mechanism 10, the dental prosthesis of the present invention by the action of the elastic body. It is to prevent the removal member 100 of the fall off from the manual handle mechanism 10.
  • the elastic head 116 is to perform the function to relieve the metallic impact force between the hand handle 10 and the first head 112 and the second head 114 and to supplement the elastic coupling force therebetween. Will be.
  • the head 110 has a total length (h1) between the top and bottom is in the range of 3 millimeters to 8 millimeters, including the first head 112, the second head 114 and the elastic head 116. desirable.
  • the overall length h1 of the head 110 is less than or equal to 3 millimeters, the contact area is too small to be coupled with the manual handle 10, whereas the length h1 of the head 110 is limited. Is more than 8 millimeters, the overall length (h4) of the present invention is relatively extended, and the engagement portion with the manual handle 10 is too large, which is not preferable.
  • the present invention includes a rotational pressing unit 120 is connected to the lower end of the head 110.
  • the rotary compression unit 120 is present between the head 110 and the screw 130, and continues to transmit the rotational force transmitted from the head 110 to the screw 130 below it. That is, the rotary pressing unit 120 performs a function as a stopper for preventing the manual handle mechanism 10 from continuing to descend in the direction of the lower tooth, and at the same time, the rotary handle 120 is operated by the manual handle mechanism 10.
  • the function as the stopper and the function of transmitting the pressing force is made through the step 122 located above the rotary pressing part 120. Therefore, when the rotary pressing unit 120 applies pressure downward while rotating the manual handle mechanism 10, the rotational force and the pressing force are transmitted to the step 122 as it is.
  • the rotational pressing unit 120 assists to form a screw coupling between the prosthesis 20 and the screw unit 130.
  • the "assisting the screw coupling" is not the rotational pressing unit 120 is a direct screw coupling, but the rotational force and the pressure transmitted through the rotary pressing unit 120 by Screw portion 130 refers to providing a force to form a screw coupling to the prosthesis 20.
  • the rotary pressing unit 120 is the outer diameter is made of a cylindrical, the portion having the largest outer diameter in the present invention.
  • the diameter of the rotary pressing unit 120 is preferably in the range of 4 millimeters to 10 millimeters.
  • the diameter of the rotary pressing unit 120 is 4 millimeters or less, it is so small that it is difficult for a user (dentist, etc.) to hold and work by hand, and also adversely affects the diameter of the screw unit 130. Can not do it.
  • the diameter of the screw part 130 should be smaller than the diameter of the rotary pressing part 130.
  • the diameter of the screw part 130 is formed too small, the screw part 130 and This is because even if the prostheses 20 are screwed together, the coupling force of the prostheses 20 becomes weak.
  • the diameter of the rotational pressing unit 120 is 10 millimeters or more, the removal member 100 of the dental prosthesis of the present invention becomes relatively large, and the user (dentist, etc.) is burdened to work by holding by hand. This is undesirable because it can affect the surrounding teeth which are also densely arranged.
  • the present invention includes a screw 130 is connected to the lower end of the rotary pressing unit 120.
  • the screw portion 130 is connected to the lower end of the rotary pressing unit 120, when rotated by the manual handle mechanism 10, is inserted into the hole 22 of the prosthesis 20, the prosthesis It will form a screw connection with (20).
  • the screw 130 is rotated to form a screw coupling to the prosthesis 20.
  • the screw 130 is to form a screw coupling to the prosthesis 20, it is greatly affected by the material and thickness of the prosthesis 20.
  • the prosthesis 20 is usually composed of a metal material such as silver, gold, or tungsten, but the thickness thereof is mostly 1 to 2 millimeters.
  • the screw portion 130 in order to achieve a screw connection with the prosthesis 20 efficiently and safely, it is preferable to form a pitch between the screw and the screw in the range of 0.15 millimeters to 0.6 millimeters.
  • the pitch of the screw is less than 0.15 millimeters, the pitch of the screw is too dense so that the coupling force is weak when screwing the prosthesis 20, and the pitch of the screw is not less than 0.6 millimeters.
  • the screw coupling force is also weak, which is not preferable.
  • the thickness of the prosthesis 20 is about 1 millimeter and the pitch of the screw is about 0.6 millimeters, the prosthesis 20 stops at about one time, so that sufficient coupling force cannot be provided.
  • the screw portion 130 in order to achieve a screw connection with the prosthesis 20 efficiently and safely, it is preferable to form the total length (h2) of the screw portion in the range of 4 millimeters to 20 millimeters. If the total length h2 of the screw portion is 4 mm or less, the coupling force with the prosthesis 20 may be weak, which is not preferable.
  • the total length h2 of the screw portion has a close relationship with the depth between the tooth 30 to be treated and the prosthesis 20.
  • the removal of the prosthesis 20 is performed in a state in which the tooth 30 is already covered.
  • the prosthesis 20 is directly covered with the surface of the tooth 30.
  • filling the filler such as cement on the surface of 30 and forming the prosthesis 20 on the filler there will also be cases where the depth of the filling reaches 4 to 5 millimeters, and in view of such depth, it is difficult for the total length h2 of the threaded portion to be 4 millimeters or less.
  • the total length h2 of the screw portion has a close relationship with the thickness of the prosthesis 20.
  • the prosthesis 20 is typically formed of gold, silver, tungsten, or the like, the thickness of which is in the range of 1 millimeter to 2 millimeters.
  • the screw thread of the screw 130 has to be directly screwed to the prosthesis 20 having a thickness of 1 millimeter to 2 millimeters, when the length h2 of the screw portion is 4 millimeters or less, the prosthesis 20 is normally connected to the prosthesis 20. It becomes difficult to form a screw connection.
  • the position of the screw portion 130 is Since the present invention will correspond to the position of the prosthesis 20, in any case, the screw portion 130 and the prosthesis 20 will be screwed together.
  • the present invention includes a bottom surface portion 140 that is connected to the lower end of the screw 130.
  • the bottom surface portion 140 is connected to the lower end of the screw portion 130, has a smaller diameter than the diameter of the screw portion 130, the bottom surface is a flat plane or smoothly rounded in the tooth direction It is formed in one curved surface.
  • the bottom surface portion 140 by continuously rotating the manual handle mechanism 10, when the removal member 100 of the dental prosthesis of the present invention touches the surface of the tooth 30, do not proceed any more In order to prevent it, and to be idling on the surface of the tooth 30, the screw portion 130 and the prosthesis 20 is to lift the prosthesis 20 slightly upward by the screwing force. In this case, the prosthesis 20 adhered to the surface of the tooth 30 is separated from the tooth 30.
  • the surface of the tooth 30 may be flat during initial orthodontic treatment or treatment, but the surface of the tooth 30 may not necessarily be flat, so that the end of the bottom portion 140 may have a rounded curved surface. More preferred.
  • the length h3 of the bottom surface portion 140 may be formed to form a flat end or a smooth rounded end in the extended state from the screw portion 130, and also to the end in a state in which it is extended to some extent unevenly It may be formed flat or gently rounded.
  • the length h3 of the bottom surface portion 140 is preferably formed in the range of 0.1 millimeter to 8 millimeters.
  • the length h3 of the bottom surface portion 140 is not necessarily limited to the above length, it is possible to increase or decrease.
  • the total length h4 between the top end of the head 110 and the bottom end of the bottom surface 140 is preferably in the range of 8 millimeters to 30 millimeters.
  • the full length h4 should be able to enter the oral cavity of the dental patient and be inserted into the tooth 30 and also be able to engage and return the hand handle mechanism 10 for hand, while the oral cavity is too large for the dental patient. It should not be burdened by opening. Therefore, when the total length h4 is 30 millimeters or more, it is not preferable because it is difficult to proceed the operation by inserting the inside of the oral cavity and a considerable burden on the dental patient.
  • the total length (h4) is less than 8 millimeters, it is not preferable because there is a side that is difficult to sufficiently secure the length (h1) of the head portion 110 and the length (h2) of the screw portion 130. More preferably, the total length h4 is in the range of 12 millimeters to 20 millimeters. Within this range, the length of each of the components can be determined by appropriately selecting each other according to the situation of the patient, such as age, sex, oral structure or size.
  • the present invention provides a method for manufacturing the removal member 100 of the dental prosthesis.
  • Figure 6 is a schematic block diagram showing a step of manufacturing a removal member of the dental prosthesis according to the present invention.
  • the manufacturing method of the dental prosthesis removing member 100 according to the present invention includes a first processing step (S 210) of the head to form the head 110 from a steel rod of a metallic material as a raw material.
  • the first processing step (S 210) of the head is started by mounting the steel bar of the raw material to the composite machine operating by a computer controlled method, and forming the diameter of the steel bar in the range of 4 millimeters to 10 millimeters.
  • the steel bar is smoothly and smoothly formed on its outer circumferential surface by lathe machining.
  • the first processing step (S 210) of the head portion is the outer peripheral surface of the steel bar is completed, the lathe machining operation is stopped, by using a cutting blade to the end portion of the steel bar by the milling operation to the head portion 110 To form, but the length h1 of the head 110 is formed in the range of 3 millimeters to 8 millimeters. In this case, since the cutting blade is well known in the machining field of the machine tool and is used conventionally, it is not indicated separately.
  • the milling operation is stopped, the elastic coupling groove 118 in the central portion of the head 110 by the lathe machining operation using the cutting chisel.
  • the second processing step (S 220) of the head portion to form a) is included.
  • the second machining step (S 220) of the head portion is a task of dividing the head portion 110 into two portions, and forms an elastic coupling groove 118 in the divided portion.
  • This work is performed by turning work using a cutting chisel.
  • the elastic coupling groove 118 is a portion for inserting an elastic body made of a material that provides elasticity, such as rubber or silicone material. When the elastic body is inserted, the elastic coupling groove 118 may be utilized for forming the elastic head 116. At this time, even in the case of the cutting chisel, since it is well known and conventionally used in the machining field of the machine tool, this is also not indicated separately.
  • the operation of the cutting chisel is stopped, and the second cutting chisel is smooth from the lower end of the rotary pressing unit 120 to the bottom surface portion 140. It comprises a tapered machining step (S 230) to continue the lathe machining while forming a slope.
  • the taper machining step (S 230) while continuing the lathe machining operation, using a second cutting chisel, spaced apart from the lower portion of the head 110 by a length of 1 millimeter to 5 millimeters and the gentle inclined surface 133 It is a work to form.
  • a second cutting chisel spaced apart from the lower portion of the head 110 by a length of 1 millimeter to 5 millimeters and the gentle inclined surface 133 It is a work to form.
  • the thread forming step of forming a screw thread on the inclined surface 133 while stopping the work of the second cutting chisel, continuing the lathe machining operation (S 240) ) Is included.
  • the thread forming step (S 240) is to form a thread on the inclined surface 133 in a conventional manner, it is preferable to form a pitch of the thread in the range of 0.15 millimeters to 0.6 millimeters. If the pitch of the thread is 0.15 millimeters or less, it may be too fine to weaken the bonding force with the prosthesis 20, while the number of threads coupled with the prosthesis 20 is small even if it is 0.6 millimeter or more, so that the prosthesis 20 It is not preferable because the bonding strength with) is weak.
  • the thread forming step (S 240) is preferably to form a total length (h2) of the screw portion 130 in the range of 4 millimeters to 20 millimeters. The reason for this has already been described in detail, so it will be omitted.
  • Method of manufacturing a dental prosthesis removal member 100 includes.
  • the bottom portion forming step (S 250) is a step of forming a portion extending from the screw portion 130 to a flat outer circumferential surface by a lathe machining operation, and forming an end thereof flat or rounded gently.
  • the bottom surface portion 140 is formed in a circular rod shape, the end is formed to be flat or rounded gently.
  • the method of manufacturing the dental prosthesis removing member 100 according to the present invention may be performed by performing the above-described various manufacturing steps in reverse order, respectively.
  • the removal member 100 of the dental prosthesis of the present invention manufactured in this manner can easily and simply remove the prosthesis 20 covered on the outer surface of the tooth in the following manner.
  • Figure 4a is an exemplary view showing an embodiment of the removal member 100 of the dental prosthesis according to the present invention
  • Figure 4b is an exemplary view showing another embodiment of the removal member 100 of the dental prosthesis
  • Figures 5a to 5c A schematic diagram sequentially illustrating a process of removing a prosthesis using the present invention.
  • a small hole 22 is formed in the prosthesis 20 covered on the outside of the tooth 30 to be treated.
  • the small hole 22 can be formed by a tool that is generally used.
  • the lower end of the removal member 100 of the dental prosthesis of the present invention is inserted into the small hole 22 of the prosthesis 20.
  • the bottom surface portion 140 is inserted.
  • the lifting member 100 of the dental prosthesis according to the present invention is lifted lightly, the prosthesis 20 is separated from the tooth 30 itself, and is simply and simply removed from the tooth 30. Lose.
  • the present invention has an advantage of not causing any noise or pain in the process of actual use by using a simple and non-complicated therapeutic tool, which does not give any threat or aversion to the patients who wish to receive dental treatment.
  • the present invention is directly operated by the user (dentist), there is also an advantage that the patient can work on the treatment with confidence.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dental Prosthetics (AREA)
PCT/KR2015/013670 2015-12-07 2015-12-14 치과용 보철의 제거부재 및 그 제조방법 WO2017099282A1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2015-0173223 2015-12-07
KR1020150173223A KR101607227B1 (ko) 2015-12-07 2015-12-07 치과용 보철의 제거부재 및 그 제조방법

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WO2017099282A1 true WO2017099282A1 (ko) 2017-06-15

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JP (1) JP6169768B2 (ja)
KR (1) KR101607227B1 (ja)
WO (1) WO2017099282A1 (ja)

Cited By (1)

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EP3818960A1 (en) * 2019-11-06 2021-05-12 Dental Vision B.V.B.A. Dental prosthetic system with a bridge structure removable from a base structure

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Publication number Priority date Publication date Assignee Title
KR101607227B1 (ko) * 2015-12-07 2016-03-30 (주) 디에스 치과용 보철의 제거부재 및 그 제조방법
ITUA20163640A1 (it) * 2016-05-20 2017-11-20 Fausto Sommovigo Sistema di rimozione di una corona protesica da un impianto dentale
KR101790886B1 (ko) * 2016-07-14 2017-10-26 김봉석 크라운적출용 치과기구
WO2018016792A1 (ko) * 2016-07-18 2018-01-25 이지원 보철물 제거 장치
KR101839982B1 (ko) * 2016-12-28 2018-03-19 이지원 치아 보철물 제거 방법
CN109820606B (zh) * 2019-02-26 2020-04-14 谢春 脱冠器

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