WO2023177384A1 - Implant dentaire - Google Patents

Implant dentaire Download PDF

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Publication number
WO2023177384A1
WO2023177384A1 PCT/UA2022/000057 UA2022000057W WO2023177384A1 WO 2023177384 A1 WO2023177384 A1 WO 2023177384A1 UA 2022000057 W UA2022000057 W UA 2022000057W WO 2023177384 A1 WO2023177384 A1 WO 2023177384A1
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WO
WIPO (PCT)
Prior art keywords
thread
equal
implant
external
conical
Prior art date
Application number
PCT/UA2022/000057
Other languages
English (en)
Russian (ru)
Inventor
Игорь ЦЫРКИН
Original Assignee
Игорь ЦЫРКИН
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Игорь ЦЫРКИН filed Critical Игорь ЦЫРКИН
Publication of WO2023177384A1 publication Critical patent/WO2023177384A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools

Definitions

  • the invention relates to the field of dentistry, in particular dental implantology, and is aimed at creating the design of such dental implants for reliable replacement of missing teeth and increasing the long-term stability of bone and soft tissues.
  • a dental implant is an artificially manufactured, most often multi-component structure, used for insertion into the bone tissue of the jaw with subsequent fusion for the purpose of prosthetics.
  • Implants replace the roots of lost teeth, allowing subsequent restoration of the dentition.
  • Implants can be installed in both the maxillary and mandibular bones.
  • Human bone consists of different types of bone tissue - hard cortical and cancellous layers.
  • spongy bone tissue is divided into different types based on hardness:
  • Type I and II are hard bone types
  • III and IV are soft bone types.
  • a good implant outcome is considered to be an implant with sufficient primary stability for immediate loading.
  • Immediate loading is a surgical protocol in which a prosthetic component can be immediately installed into the installed implant: a healing abutment or a temporary abutment with a temporary crown.
  • An abutment (from English, abutment - support) is a technical element that connects the body of a dental implant and a ceramic crown. With immediate loading, the installed implant is immediately exposed to external forces during chewing movements of the lower and upper jaw, thereby stimulating the growth of bone tissue around the implant and shortening the period of osseointegration.
  • a plug screw is screwed into the installed implant and the soft tissue is sutured, completely covering the implant, for a period of osseointegration, which can last 3-6 months.
  • Primary or mechanical stability is the resistance to screwing the implant and its immobility in the bone.
  • the invention is aimed at improving the primary (mechanical) stability of installing a dental implant in the patient’s jaw due to the thread run-off and the presence of a recess, creating macro- and microrelief on its surface.
  • the disadvantage of the known implant is that its surface area in contact with soft bone tissue of types III and IV, due to the thread run-off and the presence of a notch, is insufficient for its full stability in the jaw after healing, that is, its mobility may occur due to small contact area, weak resistance to screwing in the implant and, accordingly, poor fusion with bone tissue, which can ultimately lead to loosening and loss of the implant.
  • a dental implant has a non-circular cut portion during implantation to fill with bone thickness obtained from the adjacent part of the jaw bone to reduce bone resorption along the intraosseous part of the implant in the jaw bone, wherein the implant contains an implant body, including an upper surface, and a screw receiving channel, located down from the upper surface for connecting the abutment to the implant, which is characterized by that.
  • the specified body contains three non-circular cut parts, longitudinally located down from the upper surface on the sides of the specified body, radially surrounding the screw-receiving channel and equidistantly around the body [“Dental implant” RU2612487C2 (MIS IMPLANTS TECHNOLOGIES LTD.) (IL) A61C 8/00; 03/03/2007] [2].
  • the known implant has three non-circular cut parts, longitudinally located down from the upper surface on the sides of the specified body, radially surrounding the screw-receiving channel and equidistantly around the body, forming a triangular section intended for filling with bone thickness during implantation, located on upper cylindrical part, an increase in the area of its surface in contact with the bone tissue of the jaw is achieved, which makes it possible to slightly reduce its mobility due to an increase in the volume of fusion with the bone tissue and somewhat increases the stability of the implant after its healing.
  • the disadvantage of the known implant is that the multifaceted section for filling the thickness of the bone during implantation, located on the upper cylindrical part, extends to the very upper end of the body and does not have stops at the top, and the external thread is made with a constant pitch along its entire length, which does not create increased resistance to screwing in the implant, and as a result, does not provide maximum stability of the implant after healing in the soft bone tissue of types III and IV of the patient’s jaw.
  • a dental implant which is an elongated body made of metal and includes a lower conical apical part, an upper cylindrical cervical part, continuous external thread, including an external conical thread made on the lower conical apical part and an external cylindrical thread made on the upper cylindrical cervical part, longitudinal grooves that are made in the lower conical apical part and intersect several turns of the external conical thread for cutting into the cortical layer of the bone tissue, an internal platform made at the upper end of the body and including an internal annular conical surface in the upper part for fixing prosthetic components, an internal index made in the form of a multifaceted cavity in the middle part to block rotation of the prosthetic components inside the implant, and a threaded hole in the lower part for attaching the abutment of the prosthetic element [“Dental implant body” RU2749841C1 (MEGAGEN IMPLANT CO., LTD. (KR)) A61C 8/00; 06/17/2021.
  • the internal platform is made at the upper end of the body and includes an internal annular conical surface in the upper part for fixing prosthetic components, an internal index made in the form of a multifaceted cavity in the middle part for blocking the rotation of prosthetic components inside the implant, and a threaded hole in the lower part. parts for attaching the abutment of the prosthetic element.
  • the dental implant has a continuous external thread, including an external conical thread made on the lower conical apical part and an external cylindrical thread made on the upper cylindrical cervical part with the same thread pitch along its entire length.
  • the known invention makes it possible to eliminate the vibration of the abutment connected to the implant body during the process of installing the dental implant body, which occurs from the torque of the rotating tool during installation of the dental implant body.
  • the disadvantage of the known dental implant is that the external thread is made with a constant pitch along its entire length, due to which the surface area in contact with the bone tissue of the jaw interacts without additional compression forces between the thread turns and the layers of soft bone tissue, and the resulting resistance, that is, the force of screwing the implant becomes insufficient for its full stability, as a result of which reliable primary stability is not achieved when installing it into soft bone tissue of types III and IV.
  • the basis of the invention is the task of creating a dental implant, the use of which would ensure the primary stability of the implant after installation and healing in the soft bone tissue of types III and IV of the patient’s jaw.
  • the dental implant additionally includes lead-in longitudinal grooves, which are made on the upper cylindrical cervical part and intersect several turns of the external cylindrical thread for cutting into the cortical layer of bone tissue, which creates an additional group of lead-in grooves on the upper cylindrical cervical part.
  • FIG. 1 shows a dental implant, sketch.
  • Figure 2 shows a dental implant, general view.
  • Figure 3 shows the thread profile of a dental implant, fragment.
  • Figure 4 shows a dental implant, longitudinal section.
  • Figure 5 shows a dental implant, top view.
  • FIG. 6 shows a dental implant after installation and healing in the soft bone tissue of the patient's jaw.
  • fig. 7 shows a dental implant, with the boundaries of the areas in which the tops of the coils have widths T1 and T2.
  • fig. 8 shows a dental implant, with the boundaries of the areas in which the pitch of the turns has values S 1 and S2.
  • the claimed dental implant (Fig. 1-13) is an elongated body 1 made of metal and including a lower conical apical part 2, an upper cylindrical cervical part 3, a continuous external thread 4, including an external conical thread 4.1 made on the lower conical apical part 2 and an external cylindrical thread 4.2 made on the upper cylindrical cervical part 3, longitudinal grooves 5, which are made in the lower conical apical part 2 and intersect several turns of external conical thread 4.1 for cutting into the cortical layer of bone tissue, an internal platform 6 made in the upper end of the body 1 and including an internal annular conical surface 7 in the upper part for fixing prosthetic components, an internal index made in the form of a multifaceted cavity 8 in the middle part, to block the rotation of the prosthetic components inside the implant, and a threaded hole 9 in the lower part for attaching the abutment of the prosthetic element.
  • the upper one is cylindrical
  • the claimed dental implant additionally includes lead-in longitudinal grooves 10, which are made on the upper cylindrical cervical part 3 and intersect several turns of external cylindrical thread 4.2 for cutting into the cortical layer of bone tissue.
  • the installation of the claimed dental implant is performed as follows.
  • the dental surgeon prepares a place for installing the body of 1 dental implant of the proposed improved design, makes an incision in the gums and using a surgical set of special dental drills, makes a hole in the bone of the patient's lower or upper jaw.
  • the body of 1 dental implant is inserted into the prepared bone bed, which corresponds to the shape of the required implant, using an implant driver.
  • a plug screw is installed, which protects the internal part of the dental implant during the period of osseointegration.
  • the process of installing the implant body 1 consists of preparing the bone bed for the required size of the implant body using a surgical kit, which is an integral part of the implantation system.
  • the bone bed is made with a surgical drill, which follows the contour of the external thread 4 (4.1, 4.2) of the body 1 of the implant, so as to ensure complete fit of the turns of the mentioned thread 4 (4.1, 4.2) into the bone tissue (Fig. 5).
  • the lower apical part 2 has sharp 4.1 threads for cutting into the bone
  • the cylindrical cervical part 3 has blunt 4.1 threads.
  • the helical line of external thread 4 (4.1 and 4.2) is made continuous, single-start with a constant angular profile.
  • Thread 4.2 with a smaller pitch has an average diameter of D pcs, and with a large pitch of 4.1 - d mm (Fig. 6); a - the angle of the helix (thread 4), which depends on the pitch T of thread 4 (4.1 and 4.2) and the average diameter: a - arc
  • the resulting compression force will be equal to the difference between the axial forces Foci and F O C2.
  • the compression force is aimed at compression, and in the case of a negative value, the compression force is aimed at tension.
  • the design of the proposed implant is aimed at obtaining a positive compression force value.
  • the claimed dental implant can be manufactured industrially at any specialized enterprise and can find wide application in dentistry, in particular implantology, since it allows for high primary stability and reliability of the implant after installation and healing in the soft bone tissue of types III and IV of the patient’s jaw.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & 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)
  • Prostheses (AREA)

Abstract

L'invention se rapporte au domaine de la stomatologie, notamment de l'implantologie dentaire, et a pour but de créer des implants dentaires qui permettent un remplacement fiable de dents manquantes et d'augmenter la résistance dans le temps de tissus osseux et mous entourant les implants, et des butées et prothèses de dents de patients fixées sur ceux-ci. Cet implant dentaire consiste en un corps allongé (1) fait de métal et comprenant une partie apicale conique inférieure (2), et une partie collet cylindrique supérieure (3). Un filetage externe continu (4) comprend un filetage conique externe (4.1), avec des sommets aigus des spires T1, dont l'épaisseur est de 0,1±0,05 mm tandis que le pas du filetage S1 est de 0,85±0,05 mm, et qui est formé sur la partie apicale conique inférieure (2), et un filetage cylindrique externe (4.2) comportant des sommets obtus des spires T2 dont l'épaisseur est de 0,2±0,05 mm tandis que le pas du filetage S2 est de 0,75±0,05 mm, et qui est formé sur la partie collet cylindrique supérieure (3). Des chenaux longitudinaux (5) sont formés dans la partie apicale conique inférieure (2) et croisent plusieurs spires du filetage conique externe (4.1). La plateforme interne (6) est réalisée dans l'extrémité supérieure du corps (1) et comprend une surface conique annulaire interne (7) dans la partie supérieure, un indice interne sous forme d'une cavité à faces multiples (8) dans la partie médiane et ou ouverture filetée (9) dans la partie inférieure.
PCT/UA2022/000057 2022-03-17 2022-09-21 Implant dentaire WO2023177384A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
UAA202200976 2022-03-17
UAA202200976 2022-03-17

Publications (1)

Publication Number Publication Date
WO2023177384A1 true WO2023177384A1 (fr) 2023-09-21

Family

ID=88023753

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/UA2022/000057 WO2023177384A1 (fr) 2022-03-17 2022-09-21 Implant dentaire

Country Status (1)

Country Link
WO (1) WO2023177384A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070099153A1 (en) * 2003-05-21 2007-05-03 Ophir Fromovich Condensing skeletal implant that facilitate insertions
US20080261175A1 (en) * 2007-04-23 2008-10-23 Nobel Biocare Services Ag Dental implant
US20130177874A1 (en) * 2011-08-02 2013-07-11 Shofu Inc. Dental implant
WO2016027267A1 (fr) * 2014-08-21 2016-02-25 Precise Implant Systems E.S. Ltd. Implant dentaire à pas variable
US20180036102A1 (en) * 2015-02-05 2018-02-08 Alpha Bio Tec. Ltd. Dental implant for implantation facilitation and stabilization
US20190269484A1 (en) * 2014-04-30 2019-09-05 MAKB Limited Osseointegrative surgical implant
WO2019213770A1 (fr) * 2018-05-09 2019-11-14 Estrabillo Roland Implant dentaire
RU2749841C1 (ru) * 2017-12-04 2021-06-17 Мегаджен Имплант Ко., Лтд. Тело зубного имплантата
US20210338385A1 (en) * 2018-10-11 2021-11-04 Straumann Holding Ag Dental implant thread

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070099153A1 (en) * 2003-05-21 2007-05-03 Ophir Fromovich Condensing skeletal implant that facilitate insertions
US20080261175A1 (en) * 2007-04-23 2008-10-23 Nobel Biocare Services Ag Dental implant
US20130177874A1 (en) * 2011-08-02 2013-07-11 Shofu Inc. Dental implant
US20190269484A1 (en) * 2014-04-30 2019-09-05 MAKB Limited Osseointegrative surgical implant
WO2016027267A1 (fr) * 2014-08-21 2016-02-25 Precise Implant Systems E.S. Ltd. Implant dentaire à pas variable
US20180036102A1 (en) * 2015-02-05 2018-02-08 Alpha Bio Tec. Ltd. Dental implant for implantation facilitation and stabilization
RU2749841C1 (ru) * 2017-12-04 2021-06-17 Мегаджен Имплант Ко., Лтд. Тело зубного имплантата
WO2019213770A1 (fr) * 2018-05-09 2019-11-14 Estrabillo Roland Implant dentaire
US20210338385A1 (en) * 2018-10-11 2021-11-04 Straumann Holding Ag Dental implant thread

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