EP3007645A1 - Prothèse dentaire et procédé de fabrication de la prothèse - Google Patents

Prothèse dentaire et procédé de fabrication de la prothèse

Info

Publication number
EP3007645A1
EP3007645A1 EP14811030.7A EP14811030A EP3007645A1 EP 3007645 A1 EP3007645 A1 EP 3007645A1 EP 14811030 A EP14811030 A EP 14811030A EP 3007645 A1 EP3007645 A1 EP 3007645A1
Authority
EP
European Patent Office
Prior art keywords
dental
implant
tube
communication channel
dental prosthesis
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP14811030.7A
Other languages
German (de)
English (en)
Other versions
EP3007645A4 (fr
Inventor
Mikael ESCOBAR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BRANEMARK INTEGRATION AB
Original Assignee
BRANEMARK INTEGRATION AB
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
Priority claimed from SE1300425A external-priority patent/SE538410C2/sv
Priority claimed from SE1400135A external-priority patent/SE538448C2/sv
Application filed by BRANEMARK INTEGRATION AB filed Critical BRANEMARK INTEGRATION AB
Publication of EP3007645A1 publication Critical patent/EP3007645A1/fr
Publication of EP3007645A4 publication Critical patent/EP3007645A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • A61C13/08—Artificial teeth; Making same
    • A61C13/081—Making teeth by casting or moulding
    • 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
    • A61C13/0001—In-situ dentures; Trial or temporary dentures
    • 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
    • A61C13/0003—Making bridge-work, inlays, implants or the like
    • A61C13/0004—Computer-assisted sizing or machining of dental prostheses
    • 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
    • A61C8/0051—Abutment monobloc with restoration
    • 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
    • A61C8/0053—Connecting devices for joining an upper structure with an implant member, e.g. spacers with angular adjustment means, e.g. ball and socket joint
    • 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
    • A61C8/0089—Implanting tools or instruments
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/40—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture

Definitions

  • the present invention relates to a dental prosthesis, such as a dental bridge restoration or a single unit restoration. Specifically the invention relates to a dental prosthesis to be connected to a dental implant system.
  • the dental prosthesis is applied for instance by cementing or by means of separate securing screws.
  • One example of a dental prosthesis in the form of a bridge restoration is illustrated in US 6,319,000 Bl .
  • a special screw driver having a rotatable handle portion and flexible and/or bendable shaft portion should be used for fixing the securing screw.
  • the screw member seat for providing support to the head of the screw is integrated with the dental prosthesis/superstructure.
  • the superstructure could be provided with a dental implant seat or a spacer element seat, such as a recess suitable for receiving a protrusion on the dental implant or spacer element.
  • the shoulders of the screw member seat are created by a drill bit to provide an arched or semi-spherical shape.
  • a matching screw member with a bevelled, such as arched, spherical or semi-spherical head, is then used for securing the dental prosthesis/superstructure.
  • the communication channel is drilled.
  • the drilling procedure comprises a drilling of a first straight bore from a first point, and a drilling of a second straight bore from a second point, such that the first bore and the second bore intersect in the interior of the prosthesis/superstructure to form the communication channel.
  • the angled screw channel passage through the dental prosthesis, the communication channel is constituted by a bendable, elongated tube attached onto the implant or the implant abutment level for defining a desired angle of said communication channel and for a subsequent wax-up of the final restoration.
  • the elongated tube is attached directly onto the implant or the implant abutment level by means of a prosthetic screw member.
  • the elongated tube is attached to the implant or the implant abutment level via an interface abutment for fixation onto the implant or implant abutment level.
  • the communication channel is constituted by the interface abutment and the bendable, elongated tube that fits onto the interface abutment.
  • the bendable tube is made of a plastic material, such as PMMA or a similar material, so that the tube is possible to bend into a desired angle with flame/heat.
  • the bending of the tube is performed by means of a specific tool to the desired angle of the tube.
  • Figure 1 is a schematic overview of a dental prosthetic situation for a first embodiment of the invention
  • Figure 2 is a side view of two interface abutments according to the invention
  • Figure 3 is a longitudinal section of a bendable tube according to the invention.
  • Figure 4a is a side view illustrating the bending of the tube by means of a one-piece tool bending the tube mounted onto the interface abutment
  • Figure 4b is a side view illustrating a prepared prosthesis attached to analogues by means of a prosthetic screw
  • Figure 5 illustrates the use of scan bodies for dental CAD-CAM technology
  • Figure 6 is a schematic overview of a dental prosthetic situation for a second embodiment of the invention
  • Figure 7 is a longitudinal section of a first type of a bendable tube according to the second embodiment of the invention
  • Figure 8 is a longitudinal section of a second type of a bendable tube
  • Figure 9 is a longitudinal section of a prosthetic screw to be used with the first type of bendable tube illustrated in figure 7,
  • Figure 10 is a longitudinal section of a prosthetic screw to be used with the second type of bendable tube illustrated in figure 8, and
  • Figure 1 1 is a side view illustrating the bending of the tube by means of a one-piece metal tool.
  • Figures 1- 5 are related to a first embodiment of the invention.
  • Figure 1 illustrates a dental prosthetic situation in which a conventional dental implant screw 1 is anchored into the jaw bone 2 by means of conventional technique which is not described here.
  • a dental restoration procedure in which a conventional dental implant screw 1 is anchored into the jaw bone 2 by means of conventional technique which is not described here.
  • prosthesis/superstructure 3 is attached to the implant screw 1 by means of a prosthetic screw 4. It should be understood that the prosthesis 3 could be attached either directly to the implant screw itself as illustrated in figure 1, or indirectly by means of a spacer/abutment applied onto the implant screw.
  • the prosthesis 3 comprises a main body having a base portion 5 and a top portion 6 with a front surface 7 as well as a back or inside (occlusal) surface 8.
  • the prosthetic screw 4 is applied by means of a screwdriver 24 through a screw channel 9 in the prosthesis.
  • the screwdriver 24 might be a standard screwdriver having a hexagonal, square or Torx ball end for inserting the prosthetic screw with an angle up to 30°.
  • Such ball end precision tools are available on the market and will not be described more in detail here.
  • the screw channel 9 has a first mouth 10, a screw access hole, through which the screw 4 is inserted and a second mouth 11 in the base portion 5 of the prosthesis. In this way the channel 9 forms a through communication between the first mouth 10 and the second mouth 1 1 in the prosthesis.
  • the communication channel 9 is angled so that the first mouth is located on the aesthetically unimportant surface of the prosthesis, the inside or occlusal surface 8.
  • the angled screw channel 9 through the dental prosthesis is constituted by an interface abutment 12 for fixation onto the implant screw 1 and a bendable, elongated tube 13 that fits onto the interface abutment for defining said angled screw channel 9 and on which tube a wax-up of the final dental prosthesis is prepared.
  • the abutment has a base portion in the form of a cylindrical collar 14 for fixation onto the implant or an implant abutment level by means of said standard prosthetic screw 4, a cylindrical or conical main body provided with retention grooves 15 for optimal bonding strength and long term stability and a top portion 16 with tripod shape for non-rotational of the bendable tube 13.
  • the interface abutment is pre-fabricated/machined with industrial precision and could be made of various biocompatible materials, such as titanium, zirconium, cobalt chrome, gold or the like. For casting into any dental alloy of choice, the interface abutment might also be made of a burn-out material.
  • the base portion interface has an internal or external connection compatible with existing dental implant systems on the market.
  • the connection might be non- engaging for multiple unit restorations such as a dental bridge or engaging for single unit restorations.
  • Figure 3 illustrates a bendable, plastic tube 13 that fits onto the interface abutment 12 and used for wax-up of the final bridge restoration configuration/shape.
  • the tube is made of a plastic material such as PMMA or the like which material is possible to be angled with flame/heat and burn-out for dental casting technique. By using a special bending tool (see figure 4) a desired angle of up to 30° could be obtained.
  • the through passage of the tube 13 has a base portion 17 which fits onto a cylindrical interface abutment and has a cylindrical inner tripod shape for a non-rotational fit.
  • a tool 18 it is illustrated how the bending of the tube 13 could be achieved by means of a tool 18.
  • the bendable plastic tube 13 is designed to fit onto a conical interface abutment and the base portion 17 therefore has a slightly conical inner tripod shape.
  • the base portion 17 also has a slightly larger outer diameter compared to the diameter of the cylindrical top portion 19 of the tube.
  • the tube has a waist portion 20 formed by reduced wall material thickness, defining the desired bending area of the tube 13.
  • the outer surface of the cylindrical portion 19 is made with retention grooves 21 for increased mechanical bonding to the wax-up material used.
  • the bending is achieved by means of a one-piece tool 18 comprising a screw access shape member 22 while the base portion 17 is fitted to a conical interface abutment onto analogues 23, see figure 4a.
  • Figure 4b further illustrates a prepared prosthesis with interface abutment 12 attached to analogues 23 by means of a prosthetic screw 4.
  • the prosthetic screw 4 might be a standard prosthetic screw with a hexagonal standard grip, preferably made of titanium, DLC coated or similar, for cooperation with a screwdriver 24 having a hexagonal, square or Torx ball end.
  • the interface abutments 12 are mounted and fixed onto analogues 23 using the prosthetic screws 4. Then the plastic tubes 13 are positioned onto the interface abutments 12 and a desired optimal prosthetic screw access angle output is defined. The plastic tubes are then angled by means of said bending tool 18 and flame or hot air 25 into a defined optimal prosthetic screw access angle output. A conventional wax-up is prepared onto the plastic tubes 13 into wished final shape, whereupon the tubes are cut at the occlusal level. Conventional dental casting technique is then used for transforming the wax- up model into a bridge restoration in the material of choice, such as any suitable dental metal alloy (gold, cobalt chrome etc) or press-ceramics. The fit of the framework on the interface abutments 12 is checked and eventually adjusted in the laboratory. Cosmetic veneering of choice is then applied according to conventional protocol.
  • dental CAD-CAM technology could be used for the restoration.
  • special scan bodies 26 made of a PEEK material are positioned into the plastic tubes 13 as illustrated in figure 5.
  • a conventional wax-up framework is prepared onto the plastic tubes with the scan bodies and scanned with any existing, commercialized dental scanner or conventional 3D scanner.
  • a choice of material between titanium, cobalt chrome and zirconium can then be made.
  • the scan file is checked and sent in stl format to a production center.
  • Figures 6 - 1 1 are related to a second embodiment of the invention in which the elongated tube is attached directly onto the implant or the implant abutment level by means of a prosthetic screw member, i.e. without any interface abutment.
  • Figure 6 illustrates a dental prosthetic situation in which a conventional dental implant screw 1 ' is anchored into the jaw bone 2' by means of conventional technique which is not described here.
  • a dental prosthesis/superstructure 3 ' is attached to the implant screw 1 ' by means of a prosthetic screw 4'.
  • the prosthesis 3 ' could be attached either directly to the implant screw itself, or indirectly by means of a spacer/abutment applied onto the implant screw.
  • the prosthesis 3 ' comprises a main body having a base portion 5 ' and a top portion 6' with a front surface 7' as well as a back or inside (occlusal) surface 8'.
  • the prosthetic screw 4 ' is applied by means of a screwdriver, schematically indicated by the line 27, through a screw channel 9' in the prosthesis.
  • the screwdriver 27 might be a standard screwdriver having a hexagonal ball end for inserting the prosthetic screw with an angle of for instance 30°. Such ball end precision hex tools are available on the market and will not be described more in detail here.
  • the screw channel 9' has a first mouth 10', a screw access hole, through which the screw 4 ' is inserted and a second mouth 11 ' in the base portion 5 Of the prosthesis. In this way the channel 9' forms a through communication between the first mouth 10 ' and the second mouth 1 1 ' in the prosthesis.
  • the communication channel 9' is angled so that the first mouth is located on the aesthetically unimportant surface of the prosthesis, the inside or occlusal surface 8'.
  • the angled screw channel 9 ' through the dental prosthesis is constituted by a bendable, elongated tube 13 ' for fixation directly onto the implant screw 1 Or indirectly by means of a spacer/abutment applied onto the implant screw for defining said angled screw channel 9' and on which tube a wax-up of the final dental prosthesis is prepared by e.g. the "lost-wax" casting technique, CAD/CAM or other methods for producing a dental prosthesis.
  • Figure 7 illustrates more in detail a first type of a bendable, plastic tube 13 ' that fits onto the implant screw 1 ' and used for wax-up of the final bridge restoration configuration/shape.
  • the interface of the base portion 14' has an internal or external connection geometry compatible with a corresponding external or internal connection geometry of existing dental implant systems available on the market.
  • the connection might be non-engaging for multiple unit restorations such as a dental bridge or engaging for single unit restorations.
  • the tube is preferably made of a plastic material such as PMMA or the like which material is possible to be angled with flame/heat and burn-out for dental casting technique. By using a special bending tool (see figure 11) a desired angle of up to 45° could be obtained.
  • the through passage of the tube 13 ' has a seat 15 ' for the prosthetic screw head for final fixation of the dental superstructure to the implant screw.
  • the seat is formed as a rounded shoulder having a conical interface to cooperate with a corresponding conical interface of the head of a prosthetic screw, see figure 9 below.
  • the base portion 14' has a slightly larger outer diameter compared to the diameter of the cylindrical top portion 16 ' of the tube for increased wall thickness and a conical outer surface 17 ' .
  • FIG 8 it is illustrated a slightly different bendable plastic tube 13 " which fits onto a conical interface of an implant abutment and the base portion 14" therefore has a conical inner shape 18'.
  • the tube 13 " has a seat 15 " for the prosthetic screw head for final fixation of the dental superstructure to the implant screw.
  • the seat 15 " is formed as a sharp edge shoulder with an upper planar seat surface 28 to cooperate with a corresponding planar interface surface 29 of the head of a prosthetic screw, see figure 10 below.
  • the base portion 14' has a slightly larger outer diameter compared to the diameter of the cylindrical top portion 16' for increased wall thickness of the tube.
  • the outer surface of this base portion might be cylindrical or slightly conical.
  • FIG. 9 illustrates two examples of prosthetic screws 4', 4" to be used for fixation of the tubes in figure 7 and figure 8, respectively, to the implant screw or implant abutment.
  • the prosthetic screw heads are provided with a recess 31 , 31 ' for receiving the screw driver 27.
  • the shape of the recess may be a slit, a star configuration or any other type of known recess shape to be used with a cooperating screw driver.
  • the prosthetic screw might also be a standard prosthetic screw with a hexagonal standard grip, preferably made of titanium, DLC coated or similar, for cooperation with a screwdriver 27 having a hexagonal ball end.
  • FIG 1 1 it is illustrated how the bending of the tube 13 ' could be achieved by means of a metal tool 32 having a main body 33 with a protruding member 34 adapted to the through passage of the tube. Bending of the tube 13 ' is effectuated by heating the bending area of the tube with a flame or hot air using the tool 32.
  • the plastic tubes are angled by means of said bending tool and flame or hot air into a defined optimal prosthetic screw access angle output.
  • a conventional wax-up is prepared onto the plastic tubes 13 ', 13 " into wished final shape, whereupon the tubes are cut at the occlusal level of the final dental prosthesis.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Dental Prosthetics (AREA)

Abstract

La présente invention concerne une prothèse dentaire, telle qu'une restauration de bridge dentaire ou une restauration unitaire (3,3'), comportant un corps principal et une portion de base (5,5') pour raccordement à un système d'implant dentaire (1,1'). La prothèse comprend au moins un canal de communication formant un angle (9,9') d'un membre de vis prothétique (4,4',4") pour la fixation de la prothèse au système d'implant dentaire (1,1'). Le canal de communication (9,9') présente une première ouverture (10,10') sur un côté de la prothèse et une deuxième ouverture (11, 11') dans ladite portion de base (5,5') pour la fixation de la prothèse au système d'implant dentaire, ledit canal de communication (9,9') formant un passage traversant entre la première ouverture (10,10') et la deuxième ouverture (11,11'). Selon l'invention, le canal de communication formant un angle (9,9') est constitué d'un tube allongé pliable (13,13',13") fixé sur l'implant ou au niveau de la butée de l'implant pour définir un angle souhaité dudit canal de communication (9,9') et pour une application de cire ultérieure lors de la restauration finale. Le tube allongé (13') est fixé, soit directement sur l'implant, soit au niveau de la butée de l'implant par le biais du membre de vis prothétique (4',4") pour définir l'angle souhaité du canal de communication (9,9'), ou indirectement, par le biais d'une butée d'interface (12) pour fixation sur l'implant ou au niveau de la butée de l'implant du système d'implant dentaire (1). La présente invention concerne également une méthode de fabrication d'une telle prothèse.
EP14811030.7A 2013-06-13 2014-06-10 Prothèse dentaire et procédé de fabrication de la prothèse Withdrawn EP3007645A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE1300425A SE538410C2 (sv) 2013-06-13 2013-06-13 Dental protes och en metod för att tillverka protesen
SE1400135A SE538448C2 (sv) 2014-03-12 2014-03-12 Dental protes
PCT/SE2014/000076 WO2014200404A1 (fr) 2013-06-13 2014-06-10 Prothèse dentaire et procédé de fabrication de la prothèse

Publications (2)

Publication Number Publication Date
EP3007645A1 true EP3007645A1 (fr) 2016-04-20
EP3007645A4 EP3007645A4 (fr) 2017-01-11

Family

ID=52022559

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14811030.7A Withdrawn EP3007645A4 (fr) 2013-06-13 2014-06-10 Prothèse dentaire et procédé de fabrication de la prothèse

Country Status (2)

Country Link
EP (1) EP3007645A4 (fr)
WO (1) WO2014200404A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3730091A1 (fr) 2013-09-23 2020-10-28 Esteban Xam-Mar Mangrane Élément d'interface pour prothèses dentaires
EP3865085B1 (fr) 2014-10-29 2024-05-15 Armand Stemmer Ensemble de cicatrisation, série d'ensenble de cicatrisation, procédé de fabrication d'un pilier de restauration dentaire, dispositif de restauration dentaire
CN106264758B (zh) * 2015-06-26 2019-04-09 朴永浩 一种口腔种植无牙颌修复大角度桥体基台及其使用方法
WO2017059221A1 (fr) * 2015-09-30 2017-04-06 Implant Direct Sybron International Llc Butée de retenue de vis avec élément hors-axe et procédés de fabrication et d'utilisation de celle-ci
ES2585733B1 (es) * 2016-08-24 2017-07-10 Promedent Cad-Cam, S.L.U. Prótesis dental angular implantosoportada
BR112019018756B1 (pt) 2017-03-20 2022-12-06 Straumann Holding Ag Auxiliar de modelagem de duas partes e combinação de um auxiliar de modelagem e de um componente de implante dental
FR3063884B1 (fr) 2017-03-20 2021-12-17 Euroteknika Procede de restauration dentaire
US11826224B2 (en) 2017-04-03 2023-11-28 Implant Direct Sybron International Llc Multi-unit dental assembly with off-axis feature
WO2019202113A1 (fr) * 2018-04-20 2019-10-24 Valoc Ag Restauration dentaire, sa méthode de production, programme informatique et méthode de restauration d'une dent
FR3085833B1 (fr) * 2018-09-14 2022-11-11 Euroteknika Element de restauration dentaire monobloc
ES2730054B2 (es) * 2019-02-26 2021-05-04 Astradentium Health Tech S L Pilar calcinable orientable para la fabricacion de una superestructura de una protesis dental

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5527182A (en) * 1993-12-23 1996-06-18 Adt Advanced Dental Technologies, Ltd. Implant abutment systems, devices, and techniques
SE512277C2 (sv) * 1998-07-10 2000-02-21 Nobel Biocare Ab Anordning, metod och användning vid tandersättningsarrangemang i käke
IL156202A0 (en) * 2003-05-29 2003-12-23 Polydent Medical Devices Ltd Implant having integral flexible abutment portion and method for use thereof
US20080206709A1 (en) * 2007-02-27 2008-08-28 Lannan William G Gingival support sleeve
ES2357204B1 (es) * 2009-10-08 2012-03-06 Ramón Farre Berga Aditamiento para la confección de la estructura interna de prótesis dentales.
EP2736446B1 (fr) * 2011-07-27 2020-09-02 Abracadabra Implants Ltd Assemblage de restauration prosthodontique

Also Published As

Publication number Publication date
WO2014200404A1 (fr) 2014-12-18
EP3007645A4 (fr) 2017-01-11

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