• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Interface element for dental prostheses made up of three pieces; Expander core, outer cylinder and activator screw. The interface can provide two different types of adjustment; Depending on the position of the activator screw, the interface can provide either a definitive fit or a temporary fit. The final setting applies to normal working conditions in the mouth during the life of the interface. The temporary adjustment is of the "click" type and is applied during the period of manufacture and manipulation of the prosthesis. The most representative drawing of the invention shown in figure 5. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2782673A2
    申请号:ES201930172
    申请日:2019-02-26
    公开日:2020-09-15
    发明作者:Andres Zurbano Tomas De；Diez Ramon Mandado
    申请人:Gt Medical S L；
    IPC主号:
    专利说明:

    [0002] Dental interface with reversible adjustment mode
    [0004] Interface element for dental prostheses consisting of three pieces; Expander core, outer cylinder and activator screw. The interface can provide two different types of fit with the prosthetic framework, a definitive fit or a temporary fit, depending on the position of the activator screw.
    [0006] TECHNICAL SECTOR
    [0008] The field of application of the present invention is framed within the field of dentistry - implantology, focusing specifically on the field of dental implants and in particular on structures made with CAD / CAM systems, which are screwed onto dental implants. The dental CAD / CAM system allows the fabrication of computer-designed and manufactured dental prostheses.
    [0010] OBJECT OF THE INVENTION
    [0012] The object of the present invention is to present a new type of interface that has the following differentiating characteristics:
    [0013] 1. - Being able to join the interface to the prosthetic structure without using cement.
    [0014] 2. - This union is made by mechanical retention.
    [0015] 3. - The union must be able to be reversible. In other words, the prosthetic structure can be attached temporarily, or permanently attached to the interface at any stage of the manufacturing process of the final prosthesis.
    [0016] 4. - That it is possible to join the interface to prosthetic structures made of zirconium, sintered metal, plastic polymeric material, or with plastic resins.
    [0017] 5. -It is possible to use this interface both in multiple structures
    [0018] (made up of more than one implant), and unitary (made up of a single implant).
    [0020] For a better understanding of the explanation of the invention that follows, it is necessary to define the following concepts:
    [0022] -Temporary union "click type": It is the retention of a male part within another female part that occurs thanks to the elastic deformation of the retentive part of the male within the retentive cavity of the female. This joint can be made or broken only by exerting a joining or separating force between the male and the female in the direction of the insertion axis. The magnitude of the force that must be exerted to join or separate the pieces is proportional to the energy necessary to elastically deform the retentive part of the male.
    [0024] -Permanent union: It is the retention of a male part within another female part that occurs thanks to the mechanical blocking of the retentive part of the male inside the female cavity. It is not possible to undo this type of connection without destroying some or all of the elements that make up the system. The only non-destructive way undoing the union is by removing the mechanical blockage from the retentive part of the male.
    [0025] -Reversible union: System of union between male part and female part that can be permanent or temporary depending only on the position of a third element called activator.
    [0027] BACKGROUND OF THE INVENTION
    [0029] The background of the invention refers to interface elements for dental prostheses formed by a single piece. It refers to a metallic piece known in the field of dentistry - implantology as an interface, it serves as a connection element between a dental prosthesis structure and the screw that allows the fixation of said prosthesis on an implant
    [0031] Currently there are different systems and solutions when it comes to achieving a functional dental prosthesis. One of them is the use of biocompatible metallic elements located between the implant and the dental prosthesis, known as interfaces. The interfaces are generally titanium pieces, in the form of a stump, screwed onto the implant (part not visible that is inserted into the jaw bone) and on which the dental structure is cemented (external and visible part that imitates the piece or teeth) with a specific dual cement permanently. Another alternative is that these interfaces are welded to the framework, which depends on the design of the prosthesis and the materials used. The use of the interface is intended to obtain a passive fit of the structure on the implants, since the structure is cemented or welded to the interfaces at the end of the prosthesis manufacturing process, obtaining a stress-free structure. The interfaces also protect the mechanical functionality of screwing the structure onto the implants, since the screw sits and tightens on titanium. Another purpose is to protect the implant connection. When the zirconium structures are screwed directly onto the implant, they can deteriorate the implant connection since zirconium is very hard and abrasive, so the structures are cemented on titanium interfaces so that the contact is Titanium - Titanium. Likewise, Titanium and other metal structures are cemented or welded on the interfaces, to save milling time for CAD CAM systems. Thus, there are two main ways to place a dental prosthesis on implants, the first would be to screw the structure directly onto the implant and the second to screw the structure through elements that serve as an interface between the implant and the structure or prosthesis. In current designs, interfaces with a truncated-conical body or straight body can be found in one or more heights, and with retention and position zones, as well as with the sandblasted outer body. In the internal part, with straight or conical seating for the screw, and a base with connection depending on the type of implant, varying the configuration of said base according to the type of implant connection, internal / external and / or anti-rotational / rotational, to achieve its correct final positioning. The anti-rotational and rotational systems of the base contemplate different forms of positioning, generally with a flat area to reference and ensure the position of the prosthetic structure in the implant. However, the current interface technique has the main drawback common to all of them, the fact that a cement or a weld must always be used to join the interface to the prosthesis. What makes this union permanent, and that this union is only reversible using destructive methods.
    [0032] The following are patent applications related to interfaces that consist of a single piece and that require cement to be attached to the prosthetic structure:
    [0034] - ES 1182233 U
    [0035] - ES 1184883 U
    [0036] - ES 201431382A
    [0038] There are also other methods of joining a prosthetic structure to an implant that are destructive, do not use cement, and are similar to the one presented here. These systems for connecting dental prostheses to implants are disclosed in the following patent applications:
    [0040] - ES 2386042 B1
    [0041] - ES 2354 102 B1
    [0042] - ES 2672934 T3
    [0043] - US 2014/0162211 A1
    [0044] - US 005527182 A
    [0046] It should also be noted that, as a reference to the current state of the art, at least by the applicant, the existence of any other interface that presents technical, structural and constitutive characteristics similar to the interface for dental prostheses presented here is unknown.
    [0048] EXPLANATION OF THE INVENTION
    [0050] Interface element for dental prostheses made up of three pieces; Expander core, outer cylinder and activator screw. The interface can provide two different types of adjustment; Depending on the position of the trigger screw, the interface can provide a permanent or temporary adjustment. The final setting applies to normal working conditions in the mouth during the life of the interface. The reversible adjustment is click-type and is applied during the prosthesis manipulation period.
    [0052] The interface is made up of three well differentiated elements:
    [0054] 1.- Outer cylinder. This part is cylindrical, and consists of an internal face (1.1) and an external face (1.2). The internal face (1.1) has the function of ensuring the union with the expander core (2). It can be attached to the expander core (2) in two different ways, temporarily through a "Click" effect, or permanently through the threaded insertion of the activating screw (3). The inner face (1.1) of the outer cylinder (1) is provided with a housing that has the inverse shape of the expander core (2). The external face (1.2) is provided with a series of grooves to facilitate the union with prosthetic structures made of resin. The outer cylinder (1) is only used in the case of joining with prosthetic structures made of resin. To perform the union with structures made by CAD CAM, in the position where the implants are connected. The structures must be provided with the same geometry as the inner part of the outer cylinder (1).
    [0056] 2.- Expander nucleus. This part has a triple function: The first is to make a very precise fit with the implant connection (4). The surfaces of the expander core (2) that are in contact with the implant connection (2.1) can take different forms depending on the type of implant to which it is connected, and on whether the prosthetic reconstruction is multiple or unitary. The second function of the expander core (2) is to house the activating screw (3) by means of a female thread (2.2). The third functionality is to produce a retention with the outer cylinder or with the cavities of the structure manufactured by CAD CAM. This retention can be of two types: temporary through a click effect (when the activating screw (3) does not exert pressure on the battlements (2.3), or permanent retention if the retention screw (3) exerts pressure on the battlements (2.3) .
    [0058] 3- Activator screw. This piece is made up of a male thread (3.1), a female seat for a fixation screw to the implant (3.2), and slots for the insertion tool (3.3). This piece has a double function. The first is to provide a precise seat for the head of the fixation screw (5) of the framework with the implant (4). The second functionality is to exert pressure on the expander core (2). This pressure produces a deformation on the expander core (3), more specifically on an area called battlement (2.3). By deformation of these battlements, a mechanical retention is produced between the expander core (2) and the outer cylinder (1). Or between the expander nucleus (2) and the cavity of the prosthetic structure made by CAD-CAM. The pressure on the battlements is produced thanks to the threaded insertion of the activating screw (3) in the expander core (2).
    [0060] Additionally, in structures not made by CAD CAM, an accessory can be used that facilitates the creation of the channels that house the implant connection screws. This accessory is a guide cylinder (6): It is made up of a hollow cylinder (4.1) and battlements (4.2) completely similar to those of the expander core (2). This piece has the unique functionality of serving as a guide cylinder, so that a drill can drill the holes in the channel through which the clamping screw (5) enters the implant (6). The guide cylinder is connected to the outer cylinder (1) by means of a temporary "click" type connection, and is removed from the structure once the corresponding screw housing hole has been made.
    [0062] BRIEF DESCRIPTION OF THE DRAWINGS
    [0064] To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, a set of drawings is attached as an integral part of said description where, for illustrative purposes, and not limiting, what has been represented following:
    [0066] Figure 1.- Shows a front, side and sectional view of the "External cylinder" component
    [0067] Figure 2.- Shows a front, side and sectional view of the component "Expansion core"
    [0068] Figure 3.- Shows a front, side and sectional view of the component "Activator screw"
    [0069] Figure 4.- Shows a front, side and sectional view of the component "Guide cylinder"
    [0070] Figure 5 .- Shows a perspective view of the assembly of the interface assembly, where;
    [0071] 1. - Outer cylinder
    [0072] 2. - Expander core
    [0073] 3. - Activating screw
    [0074] Figure 6 Shows a true magnitude sectional view of the assembly of the assembly when it works by means of temporary fixation with click effect. Where;
    [0075] 1. - Outer cylinder
    [0076] 2. - Expander core
    [0077] 3. - Activating screw
    [0079] Figure 7 .- Shows a true magnitude sectional view of the assembly of the assembly when it works by permanent fixation. Where;
    [0080] 1. - Outer cylinder
    [0081] 2. - Expander core
    [0082] 3. - Activating screw
    [0084] Figure 8. - Shows an exploded view of the motor in true magnitude and with section of the interface assembly together with the dental implant and the fixation screw, where;
    [0085] 1. - Outer cylinder
    [0086] 2. - Expander core
    [0087] 3. - Activating screw
    [0088] 6.- Dental implant
    [0089] 5. - Screw for fixing the implant
    [0091] Figure 9. - Shows a perspective view of the motaje in true magnitude and with section of the interface assembly together with the dental implant and the fixation screw, where;
    [0092] 1. - Outer cylinder
    [0093] 2. - Expander core
    [0094] 3. - Activating screw
    [0095] 6. - Dental implant
    [0096] 5.- Screw for fixing the implant
    [0098] Figure 10.- Really exploded overall view of the guidance system for manual drilling of the prosthetic structure NOT manufactured by CAD CAM. Where;
    [0099] 1.- Outer cylinder
    [0100] 4. - Guide Cylinder
    [0101] 7. - Cutter
    [0103] Figure 11.- Overall perspective view of the guidance system for manual drilling of the prosthetic structure NOT manufactured by CAD CAM. Where;
    [0104] 1.- Outer cylinder
    [0105] 4.- Guide Cylinder
    [0106] 7.- Cutter
    权利要求:
    Claims (1)
    [0001]
    -Preamble: Interface element for dental prostheses consisting of three pieces; Expander core, outer cylinder and activator screw. The interface can provide two different types of fit with the prosthetic framework, a definitive fit or a temporary fit, depending on the position of the activator screw.
    This set of parts that form the interface can be manufactured in titanium or cobalt chrome. It can be used for the manufacture of dental prostheses supported on one or more dental implants and on all types of dental implants or their corresponding trans-epithelial components. The interface set is indicated for prosthetic structures manufactured by CAD CAM or by manual methods.
    If the prosthetic structure to be connected to the implant is designed by CAD CAM, then the use of the outer cylinder is not necessary. The permanent or definitive mechanical union is made directly between the expander nucleus and the prosthetic structure.
    If the prosthetic structure to be connected to the implant is NOT designed by CAD CAM, then the use of the outer cylinder is necessary, so that the permanent or temporary mechanical connection occurs between the expander nucleus and the outer cylinder. At the same time, the prosthetic framework is attached to the outer cylinder by simple mechanical retention. That is, a non-reversible mechanical bond due to the adhesion of the prosthesis material to the grooves of the outer cylinder.
    -Claim 1.- Interface element for dental prostheses consisting of three pieces; The union between the set of pieces that make up the interface and the prosthetic structure is by mechanical retention. That is, the adhesion between the prosthetic structure and the interface assembly occurs without the use of any cement or solder.
    -Claim 2.- Interface element for dental prostheses consisting of three pieces, according to claim 1; The connection can be of two types depending on the position of the activator screw; Permanent mechanical bond or temporary mechanical bond.
    -Claim 3.- Interface element for dental prostheses consisting of three pieces, according to claim 2; The working mode of the assembly is reversible, that is, the interface can go from providing permanent adjustment or providing temporary adjustment as many times as desired, just by varying the position of the activating screw.
    -Claim 4.- Interface element for dental prostheses consisting of three pieces, according to claim 3; The reversible assembly works by means of the mechanical deformation of the part called the expander core.
    -Claim 5.- Interface element for dental prostheses consisting of three pieces, according to claim 3; The mechanical deformation of the component called the expander core is produced by the pressure exerted by the component called the activating screw. The activator screw allows the system to work in two different ways depending on the degree of insertion of this on the piece called the expander core.
    -Claim 6.- Interface element for dental prostheses consisting of three pieces, according to claim 5; Adjusting the insertion degree of the activator screw on the expander core is carried out by means of a threading movement. The activator screw has a male thread, and the expander core has a female thread.
    -Claim 7.- Interface element for dental prostheses consisting of three pieces; The interface assembly is fixed to the implant by means of a connecting screw that threads into the dental implant and seats in the piece called the activating screw. In this way the activator screw has a double function; Mechanically deform the expander core and independently, house the seat of the connecting screw with the dental implant. The interface is not attached to the implant by threading the activator screw to the implant. And the implant attachment screw does not cause mechanical deformation of the expander core.
    -Claim 8.- .- Interface element for dental prostheses consisting of three pieces; according to claim 1, if the prosthetic structure to be connected to the implant is designed by CAD CAM, then the use of the outer cylinder is not necessary. The permanent or definitive mechanical union is made directly between the expander nucleus and the prosthetic structure.
    -Claim 9.- Interface element for dental prostheses consisting of three pieces; according to claim 1, if the prosthetic structure to be connected to the implant is NOT designed by CAD CAM., then the use of the outer cylinder is necessary, so that the permanent or temporary mechanical connection occurs between the expander nucleus and the cylinder Exterior. At the same time, the prosthetic framework is attached to the outer cylinder by simple mechanical retention. That is, a non-reversible mechanical bond due to the adhesion of the prosthesis material to the grooves of the outer cylinder.
    -Claim 10.- Interface element for dental prostheses consisting of three pieces; according to claim 9, if the prosthetic structure to be connected to the implant is NOT designed by CAD CAM, then the accessory called a guide cylinder can be used to manually drill the canal through which the fixation screw will enter the implant.
    -Claim 11.- Interface element for dental prostheses consisting of three pieces; according to claim 10, the part called the guide cylinder is attached to the outer cylinder by means of a temporary fixation exactly the same as that between the expander core and the outer cylinder. This is possible thanks to the fact that the geometry of the junction area of the expander core with the outer cylinder, and of the guide cylinder with the outer cylinder is exactly the same.
    -Claim 12.- Interface element for dental prostheses consisting of three pieces; according to claim 10, the guide cylinder part has a hollow cylindrical part that serves to house and guide a cutting cutter in the appropriate direction. This bur designed to manually machine the channel through which the fixation screw with the implant will enter.
    -Claim 13.- Interface element for dental prostheses consisting of three pieces; according to claim 1, the component called the expander core has several functions, one of which is the function of adapting the whole interface to the different implant geometries. The geometry of the area of union of the expander nucleus with the implant can vary depending on several factors; whether the prosthetic reconstruction is multiple (on several implants) or unitary (on one implant), the type of implant connection, or whether the implants are provided, or are not provided with trans-epithelials.
    -Claim 14.- Interface element for dental prostheses consisting of three pieces; according to claim 1, this set of parts that form the interface can be manufactured in Titanium or Cobalt Chrome.
    类似技术:
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    同族专利:
    公开号 | 公开日
    ES2782673B2|2021-09-20|
    KR20210130201A|2021-10-29|
    WO2020174113A1|2020-09-03|
    ES2782673R1|2020-12-29|
    EP3900665A1|2021-10-27|
    引用文献:
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    US5527182A|1993-12-23|1996-06-18|Adt Advanced Dental Technologies, Ltd.|Implant abutment systems, devices, and techniques|
    ES2354102B1|2010-11-10|2012-02-24|Dentisel, S.L.|CONNECTION OF SUPPORT ELEMENT-PROTESIC ADDITION FOR DENTAL PROSTHESIS.|
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    US20190029779A1|2016-01-14|2019-01-31|Nobel Biocare Services Ag|Dental fitting attachable to a dental component and dental assembly comprising the dental fitting|
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    ES1184883Y|2017-05-23|2018-07-03|Implant Protesis Dental 2004 S L|INTERFACE PIECE FOR DENTAL IMPLANTS|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201930172A|ES2782673B2|2019-02-26|2019-02-26|DENTAL INTERFACE WITH REVERSIBLE FIT MODE|ES201930172A| ES2782673B2|2019-02-26|2019-02-26|DENTAL INTERFACE WITH REVERSIBLE FIT MODE|
    EP20725588.6A| EP3900665A1|2019-02-26|2020-02-26|Dental interface with mode for reversibly fitting a prosthetic structure to an implant and connection method|
    PCT/ES2020/070136| WO2020174113A1|2019-02-26|2020-02-26|Dental interface with mode for reversibly fitting a prosthetic structure to an implant and connection method|
    KR1020217030586A| KR20210130201A|2019-02-26|2020-02-26|Dental interface and connection method having a mode for reversibly fitting a prosthetic structure to an implant|
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