WO2013041382A1 - Ensemble, pilier et procédé permettant d'obtenir des données de scannage intra-oral - Google Patents

Ensemble, pilier et procédé permettant d'obtenir des données de scannage intra-oral Download PDF

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Publication number
WO2013041382A1
WO2013041382A1 PCT/EP2012/067402 EP2012067402W WO2013041382A1 WO 2013041382 A1 WO2013041382 A1 WO 2013041382A1 EP 2012067402 W EP2012067402 W EP 2012067402W WO 2013041382 A1 WO2013041382 A1 WO 2013041382A1
Authority
WO
WIPO (PCT)
Prior art keywords
abutment
extension
scan data
arrangement according
structures
Prior art date
Application number
PCT/EP2012/067402
Other languages
German (de)
English (en)
Inventor
Roland Benz
Original Assignee
Bredent Gmbh & Co. Kg
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 Bredent Gmbh & Co. Kg filed Critical Bredent Gmbh & Co. Kg
Publication of WO2013041382A1 publication Critical patent/WO2013041382A1/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
    • A61C8/0001—Impression means for implants, e.g. impression coping
    • 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
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/004—Means or methods for taking digitized impressions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/225—Fastening prostheses in the mouth
    • A61C13/275—Fastening prostheses in the mouth removably secured by using bridging bars or rails between residual teeth

Definitions

  • the invention relates to an arrangement and a method for obtaining intraoral scans of edentulous or partially edentulous pines using an abutment designed for attachment to a jaw implant, and to an abutment therefor.
  • abutment For the dental prosthetic restoration of patients u. a. common to use one or more implants in the jawbone at the site of one or more teeth.
  • the scan data describes the position of the abutment in the vicinity of adjacent teeth.
  • the abutment which may be the abutment to be used for the future dental prosthesis, or a scan abutment specially designed for the scan, has characteristic geometric scan structures which permit a unique positional assignment in a subsequent dental model used.
  • DE 20 2010 017 228 U1 describes a scanbody, which serves as an abutment for the scanning process and which project a main body with several, to a small extent radially to several sides beyond the contour of the main body and in each case are designed differently from each other.
  • a scanbody known from WO 2010/108919 A2 plane detection surfaces and curved detection surfaces are formed on a detection section.
  • a method for the measurement of dental restorations is described in EP 1 618 853 A1, in which the upper side of the gingiva surrounding the scan abutment is indirectly determined in a camera mount, that a compensation part has an upper side which is easily recognizable by a measuring camera and with which Bottom is applied directly to the gingiva.
  • the plate-shaped or saddle-shaped compensating part is held on a scan abutment, by means of which the recordings of the measuring camera position and orientation of the implant can be determined.
  • a comparable method is known from EP 1 618 854 A1.
  • Intra-oral scanning uses devices that have a relatively small field of view. For a complete acquisition of the geometry in the implant area, therefore, recordings with different viewing angles and coverage areas are executed in several scan passes, and the scan data thereby obtained is combined by computer programs to form an overall image representation.
  • the merge makes use of matching structures in overlapping areas of different recordings. It can be seen that as the length of over several tooth positions contiguous toothless jaw sections increases, the precision of the merged overall image representation decreases.
  • an occlusally protruding body projecting occlusally from the implant anchored in the jaw and fixed on the implant for scanning which has scanning structures in its usual form, determines the position and orientation of the implant from scanned data enable and favor a scanning device.
  • the abutment which extends away from the abutment and extends beyond the extent of a single tooth gap is at least one extension in the case of the abutment attached to the implant in the approximal direction of progression of the mandibular arch.
  • the scannable auxiliary structures are at least partially spaced in the direction of the arch of the mandible so far from the abutment that they protrude beyond a thought about the abutment replacement tooth shape out.
  • Replacement tooth forms are commonly used in digitally assisted dental prosthetics and lie z. B. as records in dental libraries before.
  • the extension of the extension from an occlusal center axis of the abutment in the direction of the arch of the mandibular arch is preferably more than 1.5 times the largest diameter of the abutment. ment in this direction.
  • the scannable auxiliary structures are advantageously at least partially in the direction of the arch of the arch away by at least 6 mm from the longitudinal axis of the abutment abutments, which is particularly important for positions of the abutment and the extension in the molars and the premolars.
  • the auxiliary structures can be configured and optimized for the scanning device and / or the type of merging of scan data.
  • the auxiliary structures may have corners and / or edges.
  • the extension forms an additional body next to the abutment.
  • the additional body is advantageously offset from the abutment, in particular by a connecting piece spaced therefrom.
  • the connecting piece advantageously forms a constriction between the abutment and the additional body, whereby advantageously masking of the scanning structures of the abutment can be largely avoided.
  • the additional body can be simulated schematically in an advantageous embodiment of a tooth shape. This takes into account, in a particularly advantageous manner, that the algorithms in the programs used for merging scan data are prepared in particular for the constellation with teeth adjacent to the abutments and the utilization of the part obtained by scan detection of the teeth.
  • the extension can be made in one piece with the abutment, wherein as the abutment while the base body is considered, which would also be used for the recovery of scan data in a single tooth gap.
  • the extension in particular in the form of the aforementioned additional body, releasably connected to the abutment.
  • the abutment advantageously has connection structures for the temporary attachment of the extension the abutment.
  • An attachment of the extension to the abutment can be given in particular by a plug connection, preferably with a direction transverse to a longitudinal axis of the abutment plugging direction.
  • the connections can have torsion-resistant, non-round cross-sections.
  • FIG. 2 a first arrangement with two abutments
  • FIG. 3 scan detection areas to FIG. 2, FIG.
  • FIG. 1 shows an abutment AB and additional body ZK, which can be connected to the abutment AB via connecting elements VE.
  • the abutment AB has a substantially conventional form, in which a socket SO is formed for connection to the upper section of an implant so as to be non-rotatable about a longitudinal axis LA; may have a hexagonal cross-section corresponding to the shape of an upper opening in the implant.
  • a screw opening SL is formed, through which a fastening screw can be inserted, with which the abutment for the duration of the scheduled scans fixed and fixed in a defined orientation with substantially occlusal alignment of the longitudinal axis LA on an implant.
  • the abutment has an upwardly conically tapering circular cone shape, which on one side has a flattening FL from the top side OF remote from the implant up to a step ST.
  • the upper side OF, the circumferential top edge OK of which is flanked by the surface FL, the surface FL with the side edges FK, and the step ST with the circular arc edge and the circular arc chord at the inner angle can form advantageous characteristic scanning structures which reproduce well when scanning the abutment from different directions form recognizable and assignable structures within the scan data.
  • abutment forms For the execution of scans a variety of different abutment forms are known per se, which each have scan structures which the position of the abutment in the direction of the longitudinal axis LA, the angular position about the longitudinal axis LA, the inclination of the longitudinal axis LA and other position-relevant parameters when performing scans on the scan data.
  • the shape of the abutment in Fig. 1 is to be understood as exemplary only.
  • receptacles VA are formed in side surfaces of the cone shape, which serve for the mechanical connection of one or two additional bodies ZK to the abutment AB.
  • the receptacles VA can be formed, for example, as holes or as threaded holes.
  • connection of the additional body ZK to the abutment AB via separate connecting elements VE takes place, which can be fastened with one end in the receptacles VA and at the other end an additional body ZK can be attached.
  • the attachment of the additional body ZK is preferably carried out by attaching the additional body to the connecting element VE in a designated SR direction of insertion.
  • the additional bodies ZK have openings KA which can be inserted via the ends of the connecting elements VE facing away from the abutment.
  • Fig. 1 is shown for an additional body ZK left of the abutment a representation before the joining of connecting element VE and additional body ZK with the abutment.
  • the additional body ZK can advantageously even on the side facing away from the abutment further recordings for attachment of another additional body, so that by juxtaposing two or more additional bodies larger gaps are bridged or in particular on the distal side of an abutment in a toothless end of a mandibular auxiliary body can be arranged in advantageous for the acquisition of scan data position.
  • the further recordings may be identical to the openings KA.
  • the openings may also be formed as through the additional body through holes and connecting elements of greater length may be provided on soft behind each other two or more additional body can be plugged.
  • larger auxiliary bodies which, as one-piece bodies, have the approximate dimensions and shapes of mutually adjacent teeth.
  • the images VA on the abutment are advantageously arranged so that they do not interfere with the scan structures of the abutment and their recognizability during scanning or as little as possible.
  • the additional body ZK are as shown by the additional body on the right side of the abutment advantageously from the abutment laterally arranged in the example sketched so in the insertion direction of the connecting elements VE to scan or not as little as possible during scans with different fields of view of the scanning the scanning structures of the abutment AB cover.
  • the additional bodies ZK have characteristic auxiliary structures KK in the form of edges, corners or the like which are advantageous during the scanning process and are advantageous for merging scan data from a plurality of scanning operations.
  • the additional bodies are designed as schematic replicas of tooth forms.
  • receptacles VA are advantageously provided on opposite sides for connection to an additional body, so that uniform abutments can be used for the arrangement of an additional body ZK on any of the two sides or also on both sides.
  • Fig. 2 shows a first abutment arrangement prepared for intraoral scanning.
  • a first abutment A1 1 is attached to an implant 11 anchored in the jaw Kl of a patient.
  • a second abutment A2 is attached to a second implant 12 in a corresponding manner.
  • the two implants 11, 12 are spaced apart in the direction RK of the mandibular arch of the jaw Kl, as is typical for tooth gaps according to several, in the example of three missing adjacent teeth.
  • an additional body Z1 1 is arranged via a connecting element VE of the type of FIG. 1 and projects into the gap between the two abutments A1 1 and A12.
  • Scannable auxiliary structures of the additional body protrude in the direction RK beyond the abutment A1 1 intended typical replacement tooth shape ZF, which is indicated by a broken line out.
  • the scannable auxiliary structures of the Set body Z1 1 extend in the direction of RK from the central longitudinal axis LA of the abutment A1 1 by more than 1, 5 times the diameter of the abutment in the direction RK.
  • the extension extends with the scannable auxiliary structures in the direction RK by at least 6 mm away from the occlusal longitudinal axis LA, in particular in the case of extensions and / or abutments in the region of the molars or premolars.
  • FIG. 3 schematically shows the scanning of the constellation shown in FIG. 2 with a scanning device SE, which can be positioned in successive scans at different locations over the gap to be supplied with a prosthesis in the dentition of a patient and in such different scans the constellation of the abutments A1 1, A12 with the additional body Z1 1 with the individual scans associated a priori not predefined and resulting from the respective situation Mattfel- the B1, B2 and B3 detected.
  • the three different fields of view B1, B2, B3 are shown offset from one another in the direction RK.
  • different fields of view are also different from one another by other positions perpendicular to the plane of the drawing of FIG. 3 and by different angular orientations in space.
  • Scanning can be done by scanning point by line or line by line, or by a single image capture. The scanning methods are known per se in various designs and in use and therefore not discussed further here.
  • each of the scans represented by the fields of view B1, B2, B3 scanned data are obtained in which the scanning structures of the abutments and the auxiliary structures of the additional body Z1 1 and other structural data from the surrounding teeth depending on the respective fields of view are included in different ways.
  • the scan data of all scanning Operations together which is commonly referred to as matching the records.
  • FIG. 4 shows a further example of a constellation with two implants 11 and IW anchored in a jaw K 1, wherein the implant IW is inserted inclined in a manner known per se at an angle to the direction RK. Via the shape of the implant IW or via adapter, an upright position of the abutment A22 can be maintained even with such an oblique orientation of the implant IW.
  • the same arrangement as in the case of the constellation according to FIG. 2 for the abutment A1 1 and the additional body Z1 1 is assumed for the abutment A21 and an additional body Z21 held thereon.
  • a further additional body Z22 is arranged on the side facing the abutment A21 or the gap between the two abutments A21, A22.
  • a sufficient number of auxiliary structures for the scanning processes are provided within the larger gap between the two abutments A21, A22 in this constellation, in order to enable a reliable merging of the scan data of several scans into an overall image representation.
  • each additional body or in particular an implant in the molar region without distally following teeth can be provided as shown in Figure 5 an arrangement in which on a distal side of the abutment A5, a first additional body Z51 the abutment A5 is connected via a connecting element V51 and another additional body Z52 is held with a further connecting element V52 on the additional body Z51.
  • Another with the abutment A5 via a connecting element V53 additional body Z53 is located on the opposite side of the abutment A5 and indicated attached to the next abutment auxiliary body Z54.
  • a gap between two adjacent implants can also be bridged by a continuous, in particular rod-shaped connecting element, which is assigned to the implants and on which one or more additional bodies are arranged.
  • the connecting element can be made variable in length, in particular telescopically with sections which can be pushed into one another, and / or be held on the abutments in a different way than the plug connection illustrated by way of example.
  • FIG. 6 schematically shows the process for obtaining an overall image representation of a constellation having at least one abutment and at least one additional body.
  • the abutments and the additional bodies are fixed on the implants anchored in the jaw.
  • a first scan is performed and the scan data obtained are stored in a buffer SP.
  • the intermediate memory SP may be part of the scanning device or else a data processing device connected thereto.
  • a new scan is performed with a different field of view and the corresponding scan data is stored in each case.
  • the individual scans and the associated scan data are distinguished in the scheme of FIG. 5 by the running number n from each other.

Abstract

L'invention concerne un ensemble, un pilier et un procédé permettant d'obtenir des données de scannage intra-oral. L'invention vise à obtenir une représentation globale numérique de la constellation d'un ensemble de piliers dans les espaces interdentaires d'un patient en utilisant un dispositif de scannage intra-oral. L'invention propose à cet effet des piliers sur lesquels sont fixés des prolongements, en particulier des corps supplémentaires à distance des piliers, ainsi que des piliers appropriés à cette fin. L'invention concerne également un procédé permettant d'obtenir les données de scannage.
PCT/EP2012/067402 2011-09-07 2012-09-06 Ensemble, pilier et procédé permettant d'obtenir des données de scannage intra-oral WO2013041382A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011053336.2 2011-09-07
DE201110053336 DE102011053336A1 (de) 2011-09-07 2011-09-07 Anordnung und Verfahren zur Gewinnung von intraoralen Scandaten und Abutment hierfür

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WO2013041382A1 true WO2013041382A1 (fr) 2013-03-28

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015203031A1 (de) * 2015-02-19 2016-08-25 Sirona Dental Systems Gmbh Passive fit von Implantatbrücken und -stegen mittels eines CAD/CAM Tools für die modellfreie Erstellung von implantatgetragenen Restaurationen
US10136969B2 (en) 2014-02-20 2018-11-27 Alireza Tavassoli Method and system for tooth restoration
GR20180100395A (el) * 2018-08-31 2020-04-15 Vp Innovato Holdings Ltd Αξονες ψηφιακης αποτυπωσης με σαρωση και μεθοδολογια
CN113229970A (zh) * 2021-05-08 2021-08-10 广东安特齿科有限公司 扫描结构和牙种植组件
US11116613B2 (en) 2014-06-13 2021-09-14 Vp Innovato Holdings Ltd Molds for custom dental implant abutments and impression posts
CN113440278A (zh) * 2021-06-12 2021-09-28 杭州口腔医院集团有限公司 一种口腔数字化桥体修复基台及其种植方法
US11446122B2 (en) 2017-08-21 2022-09-20 Vp Innovato Holdings Ltd. Dental abutment core and method for manufacturing a dental abutment

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DE102016213399A1 (de) * 2016-07-21 2018-01-25 Sirona Dental Systems Gmbh Vermessungssystem und Verfahren zur Vermessung einer Implantat-Implantat-Situation
AT523131A3 (de) * 2019-10-29 2021-05-15 Fuerhauser Nikolaus Scankörper mit orientierungsmarkierungen
AT523132A2 (de) * 2019-10-29 2021-05-15 Fürhauser Lukas Dr Scankörper mit langem arm
WO2021081574A1 (fr) * 2019-10-29 2021-05-06 Fuerhauser Nikolaus Corps de balayage ayant des repères d'orientation
WO2022219395A1 (fr) * 2021-04-12 2022-10-20 Dos Santos Redinha Luis Antonio Pilier de numérisation et chaîne complémentaire

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DE202010017228U1 (de) 2010-11-29 2011-05-05 Nt-Trading Gmbh & Co. Kg Scankörper zur Bestimmung einer Positionierung und Orientierung eines Dentalimplantates

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US6287119B1 (en) * 1993-07-26 2001-09-11 Nobel Biocare Ab Method of manufacturing a prosthesis to be fixed to implants in the jawbone of a patient, and a system for manufacturing such prostheses
US20060072810A1 (en) * 2001-05-24 2006-04-06 Scharlack Ronald S Registration of 3-D imaging of 3-D objects
EP1618854A1 (fr) 2004-07-20 2006-01-25 Sirona Dental Systems GmbH Procédé de détermination de la position et de l'orientation de l'axe d'un implant situé dans la bouche d'un patient ainsi qu'une superstructure associée
EP1618853A1 (fr) 2004-07-20 2006-01-25 Sirona Dental Systems GmbH Pièce de compensation et procédé de mesure de restaurations dentaires
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10136969B2 (en) 2014-02-20 2018-11-27 Alireza Tavassoli Method and system for tooth restoration
US11116613B2 (en) 2014-06-13 2021-09-14 Vp Innovato Holdings Ltd Molds for custom dental implant abutments and impression posts
DE102015203031A1 (de) * 2015-02-19 2016-08-25 Sirona Dental Systems Gmbh Passive fit von Implantatbrücken und -stegen mittels eines CAD/CAM Tools für die modellfreie Erstellung von implantatgetragenen Restaurationen
DE102015203031B4 (de) * 2015-02-19 2016-10-20 Sirona Dental Systems Gmbh Passive fit von Implantatbrücken und -stegen mittels eines CAD/CAM Tools für die modellfreie Erstellung von implantatgetragenen Restaurationen
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US11259903B2 (en) * 2015-02-19 2022-03-01 Dentsply Sirona Inc. Passive fit of implant bridges and implant bars by means of a CAD/CAM tool for the model-free creation of implant-supported restorations
US11446122B2 (en) 2017-08-21 2022-09-20 Vp Innovato Holdings Ltd. Dental abutment core and method for manufacturing a dental abutment
GR20180100395A (el) * 2018-08-31 2020-04-15 Vp Innovato Holdings Ltd Αξονες ψηφιακης αποτυπωσης με σαρωση και μεθοδολογια
GR1009730B (el) * 2018-08-31 2020-05-15 Vp Innovato Holdings Ltd Αξονες ψηφιακης αποτυπωσης με σαρωση και μεθοδολογια
CN113229970A (zh) * 2021-05-08 2021-08-10 广东安特齿科有限公司 扫描结构和牙种植组件
CN113440278A (zh) * 2021-06-12 2021-09-28 杭州口腔医院集团有限公司 一种口腔数字化桥体修复基台及其种植方法
CN113440278B (zh) * 2021-06-12 2023-02-17 杭州口腔医院集团有限公司 一种口腔数字化桥体修复基台及其种植方法

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