WO2021148696A1 - Dental prosthetic abutment for placing a prosthetic crown on a dental implant - Google Patents
Dental prosthetic abutment for placing a prosthetic crown on a dental implant Download PDFInfo
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- WO2021148696A1 WO2021148696A1 PCT/ES2021/070033 ES2021070033W WO2021148696A1 WO 2021148696 A1 WO2021148696 A1 WO 2021148696A1 ES 2021070033 W ES2021070033 W ES 2021070033W WO 2021148696 A1 WO2021148696 A1 WO 2021148696A1
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- crown
- abutment
- dental
- prosthetic abutment
- dental prosthetic
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Classifications
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- 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
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- 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
- A61C8/006—Connecting devices for joining an upper structure with an implant member, e.g. spacers with polygonal positional means, e.g. hexagonal or octagonal
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- 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
- A61C8/0068—Connecting devices for joining an upper structure with an implant member, e.g. spacers with an additional screw
Definitions
- the present invention relates to a dental prosthetic abutment for the placement of a prosthetic crown on a dental implant.
- the technique of replacing missing teeth by implanting prosthetic elements is well known and, in addition to performing the chewing function, these elements are aesthetically attractive and provide correct verbal articulation.
- This method of implantology consists of replacing the roots of the missing teeth with implants, generally made of titanium, which undergo osseointegration with the alveolar bone and confer sufficient rigidity to support prosthetic dental structures, whether these are removable or screw-retained structures.
- implants with a central threaded hole that coincides with the axis of the implant where a screw is subsequently housed to hold the prosthesis.
- visible generally consisting of a dental prosthetic abutment and a prosthetic crown.
- the object of the present invention is the dental prosthetic abutment that is fixed to the dental implant to support a prosthetic crown.
- the type of dental prosthetic abutment object of this invention is known in the technical field of dental implants as "Ti-bases", since said abutments provide a base for prosthetic crowns and are generally made of titanium or an alloy of titanium.
- the dental prosthetic abutment for placing a prosthetic crown on a dental implant comprises a crown seat portion, located at the upper end of the abutment, a fixation seat portion located at a lower end of the pillar; and a main body located between the crown seat portion and the fixing seat portion, configured as a platform.
- anterior teeth are narrow in the mesial / distal dimension limits the space for the restorative material and compromises both the esthetic result and the resistance in dental implantology. Therefore, the limited space in general and especially in the mesial / distal dimension further compromises the space for the prosthetic restorative material to achieve good esthetics and strength.
- the roots of the teeth in the anterior mandible are closely spaced, often requiring implants with a narrow diameter.
- the restorative components follow the small diameter of the implants further weakening the implant / abutment / restorer assembly.
- the longitudinal axis (axial axis) of the dental implant normally follows the direction of the alveolar ridge, which can result in an unfavorable prosthetic screw access hole.
- the root of the original tooth has an oval cross section with the shape narrow in the mesial / distal direction, which is probably the evolutionary result of most chewing forces occurring in the buccal / lingual direction.
- a circular prosthetic component is not the ideal shape to absorb the masticatory forces applied in the buccal / lingual direction.
- the shape of the anterior teeth in the coronal part is relatively thin in the buccal / lingual direction and can make fitting a circular cylindrical prosthetic component difficult. Therefore, it would be desirable to provide a dental prosthetic abutment in order to solve the above-mentioned drawbacks.
- a dental prosthetic abutment is described for the placement of a prosthetic crown on a dental implant.
- the dental prosthetic abutment object of the invention comprises:
- crown seat portion located at a first longitudinal end of the pillar
- the dental prosthetic abutment of the invention is characterized in that the crown seating portion is a tubular body extending from the platform body in the longitudinal direction of the dental prosthetic abutment, the cross-section of the tubular body having an oblong shape. or elongated in such a way that the shape of the cross section is longer than it is wide considering a length and a width as the corresponding distances measured along a first axis and a second axis perpendicular to each other and in turn perpendicular to the longitudinal direction of the dental prosthetic abutment.
- the dental prosthetic abutment of the invention can also be referred to as a titanium base.
- the dental prosthetic abutment is made of titanium or a titanium alloy.
- the crown seating portion is the upper portion of the abutment and the fixation seat portion is the portion bottom of the abutment to be inserted into a drilled or an internal housing provided in the head of the implant.
- the cross-sectional shape of the crown seat portion may have a length that is 1.1 to 1.5 times greater than its width.
- the cross-sectional shape of the prosthetic upper part of the dental prosthetic abutment has its narrow dimension in the mesial / distal direction (second axis), which leaves more space for the crown restorative material.
- This cross-sectional shape creates approximately 20% more space for restorative material compared to state-of-the-art prosthetic abutments with a cylindrical top.
- the wider dimension in the buccal / lingual direction (first axis) provides additional strength to resist chewing forces in this direction.
- Another advantage of the dental prosthetic abutment of the invention is that, with more open space in the mesial / distal direction, there is more space for the translucent restorative material that improves natural aesthetics.
- the contour of the cross-sectional shape of the crown seat portion is a closed planar curve, and even more preferably, the cross-sectional shape of the crown seat portion it is oval or it is an ellipse.
- various embodiments with elongated closed plane curves are possible, as long as, of course, they are not circular.
- oval or elliptical shape makes it possible to minimize the overall dimension of the components and make it more resistant in areas where the chewing forces are greater and more aesthetic in reduced areas.
- the wider buccal / lingual dimension of the elliptical portion of the abutment provides additional strength to the implant / abutment / restorative assembly in order to withstand chewing forces in this direction without compromising the esthetic result.
- the dental prosthetic abutment is designed to be attached to a dental implant using a unique screw design and screwdriver that works in straight screw channels and also makes it possible to angle the screw channel up to 25 ° in any direction and tighten the screw with the recommended torque.
- the crown seat portion has an upper end surface, opposite the platform body, configured by a flat inclined surface.
- the inclination angle of the flat surface inclined relative to the longitudinal axis (vertical axis in most cases) of the dental prosthetic abutment or is between 5 and 85 °.
- This slope in the oval or elliptical portion of the abutment in the wide dimension makes it possible to fit a smaller restorative crown portion without compromising restorative strength.
- the abutment can be rotated 180 °.
- the pillar has a through hole along its longitudinal direction.
- the wall thickness of the tubular body of the crown seat portion measured on the first axis according to which the cross section is longest, is greater than the measured wall thickness on the second axis that is perpendicular to the first.
- the dental prosthetic abutment is made of titanium or a titanium alloy.
- Figs. 1 to 5 are different perspective views of the dental prosthetic abutment of the invention according to a preferred embodiment wherein the cross section of the crown seat portion has an elliptical shape;
- Figs. 6a and 6b are occlusal views of the four anterior teeth of the maxilla inferior with an implant in region 31, where Fig. 6a illustrates the space limitation with a cylindrical prosthetic abutment and Fig. 6b illustrates the space saving obtained with the prosthetic abutment object of the invention, showing, in this embodiment , an elliptical section;
- Figs. 1 to 5 are different perspective views of the dental prosthetic abutment of the invention according to a preferred embodiment wherein the cross section of the crown seat portion has an elliptical shape;
- Figs. 6a and 6b are occlusal views of the four anterior teeth of the maxilla inferior with an implant in region 31, where Fig. 6a illustrates the space limitation with a cylindrical prosthetic abutment and Fig. 6b
- FIG. 7a and 7b are schematic front views of the four anterior teeth of the lower jaw of Figs. 6a and 6b illustrating the reduced dimension in the mesial / distal direction, showing that, in Fig. 7a, the prosthetic abutment object of the invention leaves more space for the restorative material, greatly improving the aesthetic result compared to the prosthetic abutment.
- Fig. 8a shows a sagittal cross section showing an assembly composed of an implant and the abutment that is the object of the invention, with a crown located in the assembly, where the buccal / lingual directions of the most prominent masticatory forces in These directions have been represented by corresponding arrows; Fig.
- FIG. 8b illustrates, by means of a cross-sectional view, how the widest portion of the elliptical embodiment of the prosthetic abutment of the invention supports buccal / lingual forces
- Fig. 9 is the same view as Fig. 8a where two axes have been represented to show that the prosthetic abutment object of the invention is designed to be fixed to the implant using a unique screw and screwdriver design that will work in channels of straight screw and also makes it possible to angle the screw channel up to 25 ° in any direction and tighten the screw with the recommended torque; and Figs.
- 10a and 10b are schematic sagittal cross sections showing corresponding assemblies of an implant and prosthetic abutments of the invention according to further embodiments, where the upper elliptical portion of the corresponding prosthetic abutment has a sloping upper surface.
- Figs. 1 to 5 show a dental prosthetic abutment 1 for the placement of a prosthetic crown 7 on a dental implant 6 (as shown in Figs. 7a, 8a, 9, 10a and 10b).
- Dental prosthetic abutment 1 comprises: - a crown seat portion 2 located at a first longitudinal end of the pillar 1 (at the upper end in Figs. 1 and 3);
- a fixing seat portion 3 located at a second longitudinal end of the pillar 1 (at the lower end in Figs. 1 and 3; see also a bottom view in Fig. 4); Y,
- the platform body 4 located between the crown seat portion 2 and the fixing seat portion 3.
- the platform body 4 is composed of an inverted frustoconical body, its wider base providing a surface of horizontal support when the longitudinal axis of the column is parallel to the vertical axis.
- the fixing seat portion 3 may have different configurations, for example, being a polygonal, star-shaped, hexalobular, etc. cross-section.
- the crown seat portion 2 is a tubular body extending from the platform body in the longitudinal direction of the dental prosthetic abutment 1.
- the cross section of the tubular body has an oblong shape (longer than wide) or long, so that the shape of the cross-section is longer than it is wide considering a length and a width as the corresponding distances measured along a first axis bl and a second axis md perpendicular to each other and in turn perpendicular to the longitudinal direction z of the dental prosthetic abutment 1.
- the abutment 1 In a mounting position of the dental prosthetic abutment 1, the abutment 1 will be oriented such that the first axis bl is the buccal / lingual axis and the second axis md is the axis mesial / distal, as depicted in Fig. 6b.
- the dental prosthetic abutment 1 shown in the drawings has a crown seating portion 2 with an elliptical cross section, although many other cross sectional shapes are equally desirable. The effect of this non-circular transverse shape can be appreciated by comparing Fig. 6a with Fig. 6b and Fig. 7b with Fig. 7a.
- Figs. 6a and 6b are occlusal views of the four anterior teeth of the lower jaw with an implant in region 31.
- Fig. 6a illustrates the space limitation with a cylindrical prosthetic abutment 9 (circular cross-sectional shape)
- Fig. 6b illustrates the space saving obtained with dental prosthetic abutment 1, showing, in this embodiment, an elliptical cross-section of its crown seating portion 2.
- the elliptical cross-sectional shape of the prosthetic upper part of the dental prosthetic abutment 1 has its narrow dimension in the mesial / distal direction, which leaves more space for the material.
- crown restorative 7 Elliptical cross-section creates approximately 20% more space for restorative material compared to a cylindrical component. The wider dimension in the buccal / lingual direction provides additional strength to resist chewing forces in this direction.
- Figs. 7a and 7b are schematic front views of the four anterior teeth of the lower jaw in the figures illustrating the reduced dimension in the mesial / distal direction, showing that, in Fig. 7a, the dental prosthetic abutment 1 (with elliptical cross section) it leaves more space for the restorative material, greatly improving the esthetic result compared to the cylindrical shape of the prosthetic abutment 9 shown in Fig. 7b. In this way, with more open space in the mesial / distal direction, there is more space for the translucent restorative material that enhances natural aesthetics.
- Fig. 8a shows a sagittal cross section showing an assembly composed of an implant 6 and the dental prosthetic abutment 1, with a crown 7 located in the assembly, where the buccal and lingual directions of the most prominent masticatory forces in these directions have been represented by the corresponding arrows B and L.
- Fig. 8b illustrates, by a cross-sectional view, how the wider portion of the elliptical cross-section of the crown seating portion 2 of the prosthetic abutment 1 supports the buccal forces / lingual B and L.
- the elliptical transverse shape makes it possible to minimize the overall dimension of the components and make it more resistant in areas where chewing forces are greater and more aesthetic in reduced areas.
- Fig. 9 two axes have been represented to show that the dental prosthetic abutment 1 is designed to be fixed to an implant 6 using a Unique screw and driver design that will work in straight screw channels and also makes it possible to angle the screw channel up to 25 ° in any direction and tighten the screw to the recommended torque. This solves the fact that the longitudinal axis of the implant 6 normally follows the direction of the alveolar ridge, which can result in an unfavorable prosthetic screw access hole.
- Figs. 10a and 10b are schematic sagittal cross sections showing corresponding assemblies of an implant 6 and dental prosthetic abutments 1 according to further embodiments, where the upper part of the elliptical cross section of the corresponding dental prosthetic abutment 1 has a sloping upper surface .
- the crown seating portion 2 has an upper end surface 22, opposite to the platform body 4, shaped by an inclined flat surface 23.
- the shape of the anterior teeth in the coronal part is relatively thin in the buccal / lingual direction and can make it difficult to fit a circular cylindrical prosthetic abutment.
- the slope on the upper surface of the elliptical part in the wide dimension makes it possible to fit the smaller restorative crown 7 without compromising the restorative strength.
- the dental prosthetic abutment 1 can be rotated 180 ° (Figs. 10a and 10b can also represent the same dental prosthetic abutment 1 rotated 180 °).
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Abstract
The invention relates to a dental prosthetic abutment (1) for the placement of a prosthetic crown (7) on a dental implant (6). The prosthetic abutment (1) comprises a crown seating portion (2) located at a first longitudinal end of the abutment (1); a fixture seating portion (3) located at a second longitudinal end of the abutment (10); and a platform body (4) located between the crown seating portion and the fixture seating portion. The crown seating portion is a tubular body extending from the platform body in the longitudinal direction of the dental prosthetic abutment, and has an oblong or long shape such that the cross section shape is longer than wider taking length and width as the corresponding distances measured along a first axis (bl) and a second axis (md) perpendicular to each other and in turn perpendicular to the longitudinal direction (z) of the prosthetic abutment.
Description
“Un pilar protésico dental para colocar una corona protésica en un implante dental” "A dental prosthetic abutment to place a prosthetic crown on a dental implant"
Campo técnico de la invención Technical field of the invention
La presente invención se refiere a un pilar protésico dental para la colocación de una corona protésica sobre un implante dental. Es bien conocida la técnica que consiste en sustituir los dientes que faltan mediante la implantación de elementos protésicos y, además de llevar a cabo la función masticatoria, estos elementos son estéticamente atractivos y proporcionan una correcta articulación verbal. Este método de implantología consiste en sustituir las raíces de los dientes que faltan con implantes, generalmente hechos de titanio, que experimentan osteointegración con el hueso alveolar y confieren suficiente rigidez para soportar estructuras dentales protésicas, ya sean estas estructuras extraíbles o atornilladas. The present invention relates to a dental prosthetic abutment for the placement of a prosthetic crown on a dental implant. The technique of replacing missing teeth by implanting prosthetic elements is well known and, in addition to performing the chewing function, these elements are aesthetically attractive and provide correct verbal articulation. This method of implantology consists of replacing the roots of the missing teeth with implants, generally made of titanium, which undergo osseointegration with the alveolar bone and confer sufficient rigidity to support prosthetic dental structures, whether these are removable or screw-retained structures.
En la mayoría de las soluciones protésicas por medio de implantes, este objetivo se consigue por medio de la colocación de implantes provistos de un taladrado central roscado que coincide con el eje del implante, donde, posteriormente, se aloja un tornillo destinado a sujetar la prótesis visible, generalmente formada por un pilar protésico dental y una corona protésica. El objeto de la presente invención es el pilar protésico dental que se fija al implante dental para soportar una corona protésica. Particularmente, el tipo de pilar protésico dental objeto de esta invención es conocido en el campo técnico de los implantes dentales como "Ti-bases", dado que dichos pilares proporcionan una base para las coronas protésicas y generalmente están hechos de titanio o una aleación de titanio. In most prosthetic solutions using implants, this objective is achieved by placing implants with a central threaded hole that coincides with the axis of the implant, where a screw is subsequently housed to hold the prosthesis. visible, generally consisting of a dental prosthetic abutment and a prosthetic crown. The object of the present invention is the dental prosthetic abutment that is fixed to the dental implant to support a prosthetic crown. In particular, the type of dental prosthetic abutment object of this invention is known in the technical field of dental implants as "Ti-bases", since said abutments provide a base for prosthetic crowns and are generally made of titanium or an alloy of titanium.
El pilar protésico dental para colocar una corona protésica sobre un implante dental comprende una porción de asiento de corona, ubicada en el extremo superior del pilar, una porción de asiento de fijación ubicada en un
extremo inferior del pilar; y un cuerpo principal ubicado entre la porción de asiento de corona y la porción de asiento de fijación, configurado como una plataforma. The dental prosthetic abutment for placing a prosthetic crown on a dental implant comprises a crown seat portion, located at the upper end of the abutment, a fixation seat portion located at a lower end of the pillar; and a main body located between the crown seat portion and the fixing seat portion, configured as a platform.
Antecedentes de la invención Background of the invention
La sustitución de dientes anteriores por medio de pilares protésicos pertenecientes al estado de la técnica implica varios problemas técnicos que actualmente no se han resuelto de una manera deseable. The replacement of anterior teeth by means of prosthetic abutments belonging to the state of the art involves several technical problems that currently have not been solved in a desirable way.
El hecho de que los dientes anteriores sean estrechos en la dimensión mesial/distal limita el espacio para el material restaurador y compromete tanto el resultado estético como la resistencia en la implantología dental. Por tanto, el limitado espacio en general y, especialmente, en la dimensión mesial/distal compromete aún más el espacio para que el material restaurador protésico logre una buena estética y resistencia. The fact that the anterior teeth are narrow in the mesial / distal dimension limits the space for the restorative material and compromises both the esthetic result and the resistance in dental implantology. Therefore, the limited space in general and especially in the mesial / distal dimension further compromises the space for the prosthetic restorative material to achieve good esthetics and strength.
De manera adicional, las raíces de los dientes en el maxilar inferior anterior están muy juntas entre sí, por lo que, a menudo, requieren implantes de diámetro estrecho. Los componentes restauradores siguen el pequeño diámetro de los implantes debilitando aún más el conjunto de implante/pilar/restaurador. Additionally, the roots of the teeth in the anterior mandible are closely spaced, often requiring implants with a narrow diameter. The restorative components follow the small diameter of the implants further weakening the implant / abutment / restorer assembly.
El eje longitudinal (eje axial) del implante dental normalmente sigue la dirección del reborde alveolar, lo cual puede dar como resultado un orificio de acceso al tornillo protésico desfavorable. The longitudinal axis (axial axis) of the dental implant normally follows the direction of the alveolar ridge, which can result in an unfavorable prosthetic screw access hole.
La raíz del diente original tiene una sección transversal ovalada con la forma estrecha en la dirección mesial/distal, que es probablemente el resultado evolutivo de que la mayoría de las fuerzas masticatorias tengan lugar en la dirección bucal/lingual. Un componente protésico circular no es la forma ideal para absorber las fuerzas masticatorias aplicadas en la dirección bucal/lingual. The root of the original tooth has an oval cross section with the shape narrow in the mesial / distal direction, which is probably the evolutionary result of most chewing forces occurring in the buccal / lingual direction. A circular prosthetic component is not the ideal shape to absorb the masticatory forces applied in the buccal / lingual direction.
La forma de los dientes anteriores en la parte coronal es relativamente delgada en la dirección bucal/lingual y puede dificultar el ajuste de un componente protésico cilindrico circular.
Por lo tanto, sería deseable proporcionar un pilar protésico dental con el fin de resolver los inconvenientes mencionados anteriormente. The shape of the anterior teeth in the coronal part is relatively thin in the buccal / lingual direction and can make fitting a circular cylindrical prosthetic component difficult. Therefore, it would be desirable to provide a dental prosthetic abutment in order to solve the above-mentioned drawbacks.
Explicación de la invención Explanation of the invention
Con el fin de dar solución a los inconvenientes que se han considerado, se describe un pilar protésico dental para la colocación de una corona protésica sobre un implante dental. In order to solve the drawbacks that have been considered, a dental prosthetic abutment is described for the placement of a prosthetic crown on a dental implant.
El pilar protésico dental objeto de la invención comprende: The dental prosthetic abutment object of the invention comprises:
- una porción de asiento de corona ubicada en un primer extremo longitudinal del pilar; - a crown seat portion located at a first longitudinal end of the pillar;
- una porción de asiento de fijación ubicada en un segundo extremo longitudinal del pilar y - a fixing seat portion located at a second longitudinal end of the pillar and
- un cuerpo de plataforma ubicado entre la porción de asiento de corona y la porción de asiento de fijación. - a platform body located between the crown seat portion and the fixing seat portion.
Esencialmente, el pilar protésico dental de la invención está caracterizado por que la porción de asiento de corona es un cuerpo tubular que se extiende desde el cuerpo de plataforma en la dirección longitudinal del pilar protésico dental, teniendo la sección transversal del cuerpo tubular una forma oblonga o alargada de tal manera que la forma de la sección transversal es más larga que ancha considerando una longitud y un ancho como las distancias correspondientes medidas a lo largo de un primer eje y un segundo eje perpendiculares entre sí y a su vez perpendiculares a la dirección longitudinal del pilar protésico dental. Essentially, the dental prosthetic abutment of the invention is characterized in that the crown seating portion is a tubular body extending from the platform body in the longitudinal direction of the dental prosthetic abutment, the cross-section of the tubular body having an oblong shape. or elongated in such a way that the shape of the cross section is longer than it is wide considering a length and a width as the corresponding distances measured along a first axis and a second axis perpendicular to each other and in turn perpendicular to the longitudinal direction of the dental prosthetic abutment.
El pilar protésico dental de la invención también se puede denominar base de titanio. El pilar protésico dental está hecho de titanio o de una aleación de titanio. The dental prosthetic abutment of the invention can also be referred to as a titanium base. The dental prosthetic abutment is made of titanium or a titanium alloy.
De acuerdo con una posición de funcionamiento del pilar protésico dental de la invención, que se colocará sobre un implante dental implantado en el maxilar inferior, la porción de asiento de corona es la parte superior del pilar y la porción de asiento de fijación es la parte inferior del pilar que se insertará dentro de un
taladrado o un alojamiento interior previsto en la cabeza del implante. According to an operating position of the dental prosthetic abutment of the invention, to be placed on a dental implant implanted in the lower jaw, the crown seating portion is the upper portion of the abutment and the fixation seat portion is the portion bottom of the abutment to be inserted into a drilled or an internal housing provided in the head of the implant.
La forma de la sección transversal de la porción de asiento de corona puede tener una longitud que sea de 1 ,1 a 1,5 veces mayor que su ancho. The cross-sectional shape of the crown seat portion may have a length that is 1.1 to 1.5 times greater than its width.
La forma de la sección transversal de la parte superior protésica del pilar protésico dental tiene su dimensión estrecha en la dirección mesial/distal (segundo eje), lo cual deja más espacio para el material restaurador de corona. Esta forma de sección transversal crea aproximadamente un 20 % más de espacio para el material restaurador en comparación con los pilares protésicos del estado de la técnica con una parte superior cilindrica. La dimensión más ancha en la dirección bucal/lingual (primer eje) proporciona una resistencia adicional para resistir las fuerzas masticatorias en esta dirección. Otra ventaja del pilar protésico dental de la invención es que, con más espacio abierto en la dirección mesial/distal, hay más espacio para el material restaurador translúcido que mejora la estética natural. The cross-sectional shape of the prosthetic upper part of the dental prosthetic abutment has its narrow dimension in the mesial / distal direction (second axis), which leaves more space for the crown restorative material. This cross-sectional shape creates approximately 20% more space for restorative material compared to state-of-the-art prosthetic abutments with a cylindrical top. The wider dimension in the buccal / lingual direction (first axis) provides additional strength to resist chewing forces in this direction. Another advantage of the dental prosthetic abutment of the invention is that, with more open space in the mesial / distal direction, there is more space for the translucent restorative material that improves natural aesthetics.
De acuerdo con una realización preferente de la invención, el contorno de la forma de la sección transversal de la porción de asiento de corona es una curva plana cerrada, e incluso más preferentemente, la forma de la sección transversal de la porción de asiento de corona es ovalada o es una elipse. De hecho, son posibles varias realizaciones con curvas planas cerradas alargadas, siempre y cuando, por supuesto, no sean circulares. According to a preferred embodiment of the invention, the contour of the cross-sectional shape of the crown seat portion is a closed planar curve, and even more preferably, the cross-sectional shape of the crown seat portion it is oval or it is an ellipse. In fact, various embodiments with elongated closed plane curves are possible, as long as, of course, they are not circular.
La forma ovalada o elíptica hace posible minimizar la dimensión global de los componentes y hacerla más resistente en las zonas donde las fuerzas masticatorias son mayores y más estética en las zonas reducidas. The oval or elliptical shape makes it possible to minimize the overall dimension of the components and make it more resistant in areas where the chewing forces are greater and more aesthetic in reduced areas.
La dimensión bucal/lingual más ancha de la parte elíptica del pilar proporciona una resistencia adicional al conjunto de implante/pilar/restaurador con el fin de soportar las fuerzas masticatorias en esta dirección sin comprometer el resultado estético. The wider buccal / lingual dimension of the elliptical portion of the abutment provides additional strength to the implant / abutment / restorative assembly in order to withstand chewing forces in this direction without compromising the esthetic result.
De acuerdo con otra característica, el pilar protésico dental está diseñado para ser unido a un implante dental utilizando un diseño único de tornillo y
destornillador que funciona en canales de tornillo rectos y también hace posible angular el canal de tornillo hasta 25° en cualquier dirección y apretar el tornillo con el par recomendado. According to another feature, the dental prosthetic abutment is designed to be attached to a dental implant using a unique screw design and screwdriver that works in straight screw channels and also makes it possible to angle the screw channel up to 25 ° in any direction and tighten the screw with the recommended torque.
De acuerdo con otra característica adicional, la porción de asiento de corona tiene una superficie de extremo superior, opuesta al cuerpo de plataforma, configurada por una superficie plana inclinada. El ángulo de inclinación de la superficie plana inclinada con respecto al eje longitudinal (eje vertical en la mayoría de los casos) del pilar protésico dental está comprendido entre 5o y 85°. According to yet another feature, the crown seat portion has an upper end surface, opposite the platform body, configured by a flat inclined surface. The inclination angle of the flat surface inclined relative to the longitudinal axis (vertical axis in most cases) of the dental prosthetic abutment or is between 5 and 85 °.
Esta pendiente en la parte ovalada o elíptica del pilar en la dimensión ancha hace posible ajustar una parte de corona restauradora más pequeña sin comprometer la resistencia restauradora. En función de la angulación del implante subyacente, el pilar se puede girar 180°. This slope in the oval or elliptical portion of the abutment in the wide dimension makes it possible to fit a smaller restorative crown portion without compromising restorative strength. Depending on the angulation of the underlying implant, the abutment can be rotated 180 °.
De acuerdo con otra característica adicional de la invención, el pilar tiene un orificio pasante a lo largo de su dirección longitudinal. According to yet another feature of the invention, the pillar has a through hole along its longitudinal direction.
En una realización preferente de la invención, el grosor de la pared del cuerpo tubular de la porción de asiento de corona, medido en el primer eje de acuerdo con el cual la sección transversal es más larga, es mayor que el grosor de la pared medido en el segundo eje que es perpendicular al primero. In a preferred embodiment of the invention, the wall thickness of the tubular body of the crown seat portion, measured on the first axis according to which the cross section is longest, is greater than the measured wall thickness on the second axis that is perpendicular to the first.
El pilar protésico dental está hecho de titanio o de una aleación de titanio. The dental prosthetic abutment is made of titanium or a titanium alloy.
Breve descripción de los dibujos Brief description of the drawings
En los dibujos adjuntos, se ilustran, a modo de ejemplos no limitantes, las realizaciones preferidas del pilar protésico dental objeto de la invención. En dichos dibujos: las Figs. 1 a 5 son diferentes vistas en perspectiva del pilar protésico dental de la invención de acuerdo con una realización preferida en donde la sección transversal de la porción de asiento de corona tiene una forma elíptica; las Figs. 6a y 6b son vistas oclusales de los cuatro dientes anteriores del maxilar
inferior con un implante en la región 31, en donde la Fig. 6a ilustra la limitación de espacio con un pilar protésico cilindrico y la Fig. 6b ilustra el ahorro de espacio obtenido con el pilar protésico objeto de la invención, mostrando, en esta realización, una sección elíptica; las Figs. 7a y 7b son vistas frontales esquemáticas de los cuatro dientes anteriores del maxilar inferior de las Figs. 6a y 6b que ilustran la dimensión reducida en la dirección mesial/distal, mostrando que, en la Fig. 7a, el pilar protésico objeto de la invención deja más espacio para el material restaurador, mejorando enormemente el resultado estético en comparación con el pilar protésico de forma cilindrica representado en la Fig. 7b; la Fig. 8a muestra una sección transversal sagital que muestra un conjunto compuesto de un implante y el pilar que es el objeto de la invención, con una corona ubicada en el conjunto, en donde las direcciones bucal/lingual de las fuerzas masticatorias más prominentes en estas direcciones se han representado mediante flechas correspondientes; la Fig. 8b ilustra, mediante una vista en sección transversal, cómo la porción más ancha de la realización elíptica del pilar protésico objeto de la invención soporta fuerzas bucales/linguales; la Fig. 9 es la misma vista que la Fig. 8a en donde se han representado dos ejes para mostrar que el pilar protésico objeto de la invención está diseñado para ser fijado al implante utilizando un diseño único de tornillo y destornillador que funcionará en canales de tornillo rectos y también hace posible angular el canal de tornillo hasta 25° en cualquier dirección y apretar el tornillo con el par recomendado; y las Figs. 10a y 10b son secciones transversales sagitales esquemáticas que muestran conjuntos correspondientes de un implante y pilares protésicos de la invención de acuerdo con realizaciones adicionales, donde la parte elíptica superior del pilar protésico correspondiente tiene una superficie superior inclinada. In the attached drawings, the preferred embodiments of the dental prosthetic abutment object of the invention are illustrated, by way of non-limiting examples. In said drawings: Figs. 1 to 5 are different perspective views of the dental prosthetic abutment of the invention according to a preferred embodiment wherein the cross section of the crown seat portion has an elliptical shape; Figs. 6a and 6b are occlusal views of the four anterior teeth of the maxilla inferior with an implant in region 31, where Fig. 6a illustrates the space limitation with a cylindrical prosthetic abutment and Fig. 6b illustrates the space saving obtained with the prosthetic abutment object of the invention, showing, in this embodiment , an elliptical section; Figs. 7a and 7b are schematic front views of the four anterior teeth of the lower jaw of Figs. 6a and 6b illustrating the reduced dimension in the mesial / distal direction, showing that, in Fig. 7a, the prosthetic abutment object of the invention leaves more space for the restorative material, greatly improving the aesthetic result compared to the prosthetic abutment. cylindrical in shape shown in Fig. 7b; Fig. 8a shows a sagittal cross section showing an assembly composed of an implant and the abutment that is the object of the invention, with a crown located in the assembly, where the buccal / lingual directions of the most prominent masticatory forces in These directions have been represented by corresponding arrows; Fig. 8b illustrates, by means of a cross-sectional view, how the widest portion of the elliptical embodiment of the prosthetic abutment of the invention supports buccal / lingual forces; Fig. 9 is the same view as Fig. 8a where two axes have been represented to show that the prosthetic abutment object of the invention is designed to be fixed to the implant using a unique screw and screwdriver design that will work in channels of straight screw and also makes it possible to angle the screw channel up to 25 ° in any direction and tighten the screw with the recommended torque; and Figs. 10a and 10b are schematic sagittal cross sections showing corresponding assemblies of an implant and prosthetic abutments of the invention according to further embodiments, where the upper elliptical portion of the corresponding prosthetic abutment has a sloping upper surface.
Descripción detallada de los dibujos Detailed description of the drawings
Las Figs. 1 a 5 muestran un pilar protésico dental 1 para la colocación de una corona protésica 7 sobre un implante dental 6 (como se representa en las Figs. 7a, 8a, 9, 10a y 10b). El pilar protésico dental 1 comprende:
- una porción de asiento de corona 2 ubicada en un primer extremo longitudinal del pilar 1 (en el extremo superior en las Figs. 1 y 3); Figs. 1 to 5 show a dental prosthetic abutment 1 for the placement of a prosthetic crown 7 on a dental implant 6 (as shown in Figs. 7a, 8a, 9, 10a and 10b). Dental prosthetic abutment 1 comprises: - a crown seat portion 2 located at a first longitudinal end of the pillar 1 (at the upper end in Figs. 1 and 3);
- una porción de asiento de fijación 3 ubicada en un segundo extremo longitudinal del pilar 1 (en el extremo inferior en las Figs. 1 y 3; véase también una vista inferior en la Fig. 4); y, - a fixing seat portion 3 located at a second longitudinal end of the pillar 1 (at the lower end in Figs. 1 and 3; see also a bottom view in Fig. 4); Y,
- un cuerpo de plataforma 4 ubicado entre la porción de asiento de corona 2 y la porción de asiento de fijación 3. En este caso particular, el cuerpo de plataforma 4 se compone de un cuerpo troncocónico invertido, proporcionando su base más ancha una superficie de soporte horizontal cuando el eje longitudinal del pilar es paralelo al eje vertical. - a platform body 4 located between the crown seat portion 2 and the fixing seat portion 3. In this particular case, the platform body 4 is composed of an inverted frustoconical body, its wider base providing a surface of horizontal support when the longitudinal axis of the column is parallel to the vertical axis.
La porción de asiento de fijación 3 puede tener diferentes configuraciones, por ejemplo, siendo una sección transversal poligonal, con forma de estrella, hexalobular, etc. The fixing seat portion 3 may have different configurations, for example, being a polygonal, star-shaped, hexalobular, etc. cross-section.
Como se puede ver en los dibujos, la porción de asiento de corona 2 es un cuerpo tubular que se extiende desde el cuerpo de plataforma en la dirección longitudinal del pilar protésico dental 1. La sección transversal del cuerpo tubular tiene una forma oblonga (más larga que ancha) o larga, de manera que la forma de la sección transversal es más larga que ancha considerando una longitud y un ancho como las distancias correspondientes medidas a lo largo de un primer eje bl y un segundo eje md perpendiculares entre sí y a su vez perpendiculares a la dirección longitudinal z del pilar protésico dental 1. En una posición de montaje del pilar protésico dental 1 , el pilar 1 estará orientado de tal manera que el primer eje bl sea el eje bucal/lingual y el segundo eje md sea el eje mesial/distal, como se representa en la Fig. 6b. As can be seen from the drawings, the crown seat portion 2 is a tubular body extending from the platform body in the longitudinal direction of the dental prosthetic abutment 1. The cross section of the tubular body has an oblong shape (longer than wide) or long, so that the shape of the cross-section is longer than it is wide considering a length and a width as the corresponding distances measured along a first axis bl and a second axis md perpendicular to each other and in turn perpendicular to the longitudinal direction z of the dental prosthetic abutment 1. In a mounting position of the dental prosthetic abutment 1, the abutment 1 will be oriented such that the first axis bl is the buccal / lingual axis and the second axis md is the axis mesial / distal, as depicted in Fig. 6b.
El pilar protésico dental 1 representado en los dibujos tiene una porción de asiento de corona 2 con una sección transversal elíptica, aunque muchas otras formas de sección transversal son igualmente convenientes. El efecto de esta forma transversal no circular se puede apreciar al comparar la Fig. 6a con la Fig. 6b y la Fig. 7b con la Fig. 7a. The dental prosthetic abutment 1 shown in the drawings has a crown seating portion 2 with an elliptical cross section, although many other cross sectional shapes are equally desirable. The effect of this non-circular transverse shape can be appreciated by comparing Fig. 6a with Fig. 6b and Fig. 7b with Fig. 7a.
Las Figs. 6a y 6b son vistas oclusales de los cuatro dientes anteriores del
maxilar inferior con un implante en la región 31. La Fig. 6a ilustra la limitación de espacio con un pilar protésico cilindrico 9 (forma transversal circular) y la Fig. 6b ilustra el ahorro de espacio obtenido con el pilar protésico dental 1 , mostrando, en esta realización, una sección transversal elíptica de su porción de asiento de corona 2. La forma transversal elíptica de la parte superior protésica del pilar protésico dental 1 tiene su dimensión estrecha en la dirección mesial/distal, lo cual deja más espacio para el material restaurador de la corona 7. La forma transversal elíptica crea aproximadamente un 20 % más de espacio para el material restaurador en comparación con un componente cilindrico. La dimensión más ancha en la dirección bucal/lingual proporciona una resistencia adicional para resistir las fuerzas masticatorias en esta dirección. Figs. 6a and 6b are occlusal views of the four anterior teeth of the lower jaw with an implant in region 31. Fig. 6a illustrates the space limitation with a cylindrical prosthetic abutment 9 (circular cross-sectional shape) and Fig. 6b illustrates the space saving obtained with dental prosthetic abutment 1, showing, in this embodiment, an elliptical cross-section of its crown seating portion 2. The elliptical cross-sectional shape of the prosthetic upper part of the dental prosthetic abutment 1 has its narrow dimension in the mesial / distal direction, which leaves more space for the material. crown restorative 7. Elliptical cross-section creates approximately 20% more space for restorative material compared to a cylindrical component. The wider dimension in the buccal / lingual direction provides additional strength to resist chewing forces in this direction.
Las Figs. 7a y 7b son vistas frontales esquemáticas de los cuatro dientes anteriores del maxilar inferior de las figuras que ilustran la dimensión reducida en la dirección mesial/distal, mostrando que, en la Fig. 7a, el pilar protésico dental 1 (con sección transversal elíptica) deja más espacio para el material restaurador, mejorando enormemente el resultado estético en comparación con la forma cilindrica del pilar protésico 9 representado en la Fig. 7b. De esta manera, con más espacio abierto en la dirección mesial/distal, hay más espacio para el material restaurador translúcido que mejora la estética natural. Figs. 7a and 7b are schematic front views of the four anterior teeth of the lower jaw in the figures illustrating the reduced dimension in the mesial / distal direction, showing that, in Fig. 7a, the dental prosthetic abutment 1 (with elliptical cross section) it leaves more space for the restorative material, greatly improving the esthetic result compared to the cylindrical shape of the prosthetic abutment 9 shown in Fig. 7b. In this way, with more open space in the mesial / distal direction, there is more space for the translucent restorative material that enhances natural aesthetics.
La Fig. 8a muestra una sección transversal sagital que muestra un conjunto compuesto de un implante 6 y el pilar protésico dental 1 , con una corona 7 ubicada en el conjunto, en donde las direcciones bucal y lingual de las fuerzas masticatorias más prominentes en estas direcciones han sido representadas mediante las flechas correspondientes B y L. La Fig. 8b ilustra, mediante una vista en sección transversal, cómo la porción más ancha de la sección transversal elíptica de la porción de asiento de corona 2 del pilar protésico 1 soporta las fuerzas bucal/lingual B y L. La forma transversal elíptica hace posible minimizar la dimensión global de los componentes y hacerla más resistente en las zonas donde las fuerzas masticatorias son mayores y más estética en las zonas reducidas. Fig. 8a shows a sagittal cross section showing an assembly composed of an implant 6 and the dental prosthetic abutment 1, with a crown 7 located in the assembly, where the buccal and lingual directions of the most prominent masticatory forces in these directions have been represented by the corresponding arrows B and L. Fig. 8b illustrates, by a cross-sectional view, how the wider portion of the elliptical cross-section of the crown seating portion 2 of the prosthetic abutment 1 supports the buccal forces / lingual B and L. The elliptical transverse shape makes it possible to minimize the overall dimension of the components and make it more resistant in areas where chewing forces are greater and more aesthetic in reduced areas.
En la Fig. 9 se han representado dos ejes para mostrar que el pilar protésico dental 1 está diseñado para ser fijado a un implante 6 utilizando un
diseño único de tornillo y destornillador que funcionará en canales de tornillo rectos y también hace posible angular el canal de tornillo hasta 25° en cualquier dirección y apretar el tornillo con el par recomendado. Esto resuelve el hecho de que el eje longitudinal del implante 6 normalmente sigue la dirección del reborde alveolar, lo cual puede dar como resultado un orificio de acceso al tornillo protésico desfavorable. In Fig. 9 two axes have been represented to show that the dental prosthetic abutment 1 is designed to be fixed to an implant 6 using a Unique screw and driver design that will work in straight screw channels and also makes it possible to angle the screw channel up to 25 ° in any direction and tighten the screw to the recommended torque. This solves the fact that the longitudinal axis of the implant 6 normally follows the direction of the alveolar ridge, which can result in an unfavorable prosthetic screw access hole.
Las Figs. 10a y 10b son secciones transversales sagitales esquemáticas que muestran los conjuntos correspondientes de un implante 6 y los pilares protésicos dentales 1 de acuerdo con las realizaciones adicionales, donde la parte superior de la sección transversal elíptica del pilar protésico dental 1 correspondiente tiene una superficie superior inclinada. La porción de asiento de corona 2 tiene una superficie de extremo superior 22, opuesta al cuerpo de plataforma 4, configurada por una superficie plana inclinada 23. La forma de los dientes anteriores en la parte coronal es relativamente delgada en la dirección bucal/lingual y puede dificultar el ajuste de un pilar protésico cilindrico circular. Ventajosamente, en el pilar protésico dental 1 de la Fig. 10a o de la Fig. 10b, la pendiente en la superficie superior de la parte elíptica en la dimensión ancha hace posible ajustar la corona restauradora 7 más pequeña sin comprometer la resistencia restauradora. Figs. 10a and 10b are schematic sagittal cross sections showing corresponding assemblies of an implant 6 and dental prosthetic abutments 1 according to further embodiments, where the upper part of the elliptical cross section of the corresponding dental prosthetic abutment 1 has a sloping upper surface . The crown seating portion 2 has an upper end surface 22, opposite to the platform body 4, shaped by an inclined flat surface 23. The shape of the anterior teeth in the coronal part is relatively thin in the buccal / lingual direction and can make it difficult to fit a circular cylindrical prosthetic abutment. Advantageously, in the dental prosthetic abutment 1 of Fig. 10a or Fig. 10b, the slope on the upper surface of the elliptical part in the wide dimension makes it possible to fit the smaller restorative crown 7 without compromising the restorative strength.
En función de la angulación del implante subyacente 6 (véase la Fig. 9), el pilar protésico dental 1 se puede girar 180° (las Figs. 10a y 10b también pueden representar un mismo pilar protésico dental 1 girado 180°).
Depending on the angulation of the underlying implant 6 (see Fig. 9), the dental prosthetic abutment 1 can be rotated 180 ° (Figs. 10a and 10b can also represent the same dental prosthetic abutment 1 rotated 180 °).
Claims
1.- Un pilar protésico dental (1) para la colocación de una corona protésica (7) sobre un implante dental (6), comprendiendo el pilar protésico dental (1): - una porción de asiento de corona (2) ubicada en un primer extremo longitudinal del pilar (1); 1.- A dental prosthetic abutment (1) for the placement of a prosthetic crown (7) on a dental implant (6), the dental prosthetic abutment (1) comprising: - a crown seat portion (2) located in a first longitudinal end of the pillar (1);
- una porción de asiento de fijación (3) ubicada en un segundo extremo longitudinal del pilar (1); y - a fixing seat portion (3) located at a second longitudinal end of the pillar (1); Y
- un cuerpo de plataforma (4) ubicado entre la porción de asiento de corona (2) y la porción de asiento de fijación (3); caracterizado por que la porción de asiento de corona (2) es un cuerpo tubular que se extiende desde el cuerpo de plataforma en la dirección longitudinal del pilar protésico dental (1), teniendo la sección transversal del cuerpo tubular una forma oblonga o larga de manera que la forma de la sección transversal es más larga que ancha considerando una longitud y un ancho como las distancias correspondientes medidas a lo largo de un primer eje (bl) y un segundo eje (md) perpendiculares entre sí y a su vez perpendiculares a la dirección longitudinal (z) del pilar protésico dental (1). - a platform body (4) located between the crown seat portion (2) and the fixing seat portion (3); characterized in that the crown seat portion (2) is a tubular body extending from the platform body in the longitudinal direction of the dental prosthetic abutment (1), the cross section of the tubular body having an oblong or long shape so that the shape of the cross-section is longer than it is wide considering a length and a width as the corresponding distances measured along a first axis (bl) and a second axis (md) perpendicular to each other and in turn perpendicular to the direction longitudinal (z) of the dental prosthetic abutment (1).
2.- El pilar protésico dental (1) según la reivindicación 1, caracterizado por que la forma de la sección transversal de la porción de asiento de corona (2) tiene una longitud que es de 1,1 a 1,5 veces mayor que su ancho. 2.- The dental prosthetic abutment (1) according to claim 1, characterized in that the cross-sectional shape of the crown seat portion (2) has a length that is 1.1 to 1.5 times greater than its width.
3.- El pilar protésico dental (1) de según la reivindicación 1 o 2, caracterizado por que el contorno (21) de la forma de la sección transversal de la porción de asiento de corona (2) es una curva plana cerrada. 3. The dental prosthetic abutment (1) according to claim 1 or 2, characterized in that the contour (21) of the cross-sectional shape of the crown seat portion (2) is a closed flat curve.
4.- El pilar protésico dental (1 ) según una cualquiera de las reivindicaciones anteriores, caracterizado por que la forma de la sección transversal de la porción de asiento de corona (2) es ovalada. 4. The dental prosthetic abutment (1) according to any one of the preceding claims, characterized in that the cross-sectional shape of the crown seat portion (2) is oval.
5.- El pilar protésico dental (1 ) según una cualquiera de las reivindicaciones 1 a 3, caracterizado por que la forma de la sección transversal de la porción de asiento de corona (2) es una elipse.
5. The dental prosthetic abutment (1) according to any one of claims 1 to 3, characterized in that the cross-sectional shape of the crown seat portion (2) is an ellipse.
6.- El pilar protésico dental (1 ) según una cualquiera de las reivindicaciones anteriores, caracterizado por que la porción de asiento de corona (2) tiene una superficie de extremo superior (22), opuesta al cuerpo de plataforma (4), configurada por una superficie plana inclinada (23). 6.- The dental prosthetic abutment (1) according to any one of the preceding claims, characterized in that the crown seating portion (2) has an upper end surface (22), opposite the platform body (4), configured by an inclined flat surface (23).
7.- El pilar protésico dental (1) según la reivindicación 6, caracterizado por que el ángulo de inclinación de la superficie plana inclinada (23) con respecto al eje longitudinal del pilar protésico dental está comprendido entre 5o y 85°. 7. The pillar dental technician (1) according to claim 6, characterized in that the angle of inclination of the inclined flat surface (23) with respect to the longitudinal axis of the dental prosthetic abutment or is between 5 and 85 °.
8.- El pilar protésico dental (1 ) según una cualquiera de las reivindicaciones anteriores, caracterizado por que tiene un orificio pasante (5) a lo largo de la dirección longitudinal del pilar protésico dental (1). 8. The dental prosthetic abutment (1) according to any one of the preceding claims, characterized in that it has a through hole (5) along the longitudinal direction of the dental prosthetic abutment (1).
9.- El pilar protésico dental (1 ) según una cualquiera de las reivindicaciones anteriores, caracterizado por que el grosor de la pared del cuerpo tubular de la porción de asiento de corona (2), medido en el primer eje (bl) de acuerdo con el cual la sección transversal es más larga, es mayor que el grosor de la pared medido en el segundo eje (md) que es perpendicular al primero.
9.- The dental prosthetic abutment (1) according to any one of the preceding claims, characterized in that the thickness of the wall of the tubular body of the crown seat portion (2), measured in the first axis (bl) according to with which the cross section is longer, it is greater than the wall thickness measured on the second axis (md) which is perpendicular to the first.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20382033 | 2020-01-22 | ||
| EP20382033.7 | 2020-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021148696A1 true WO2021148696A1 (en) | 2021-07-29 |
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ID=69400501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2021/070033 WO2021148696A1 (en) | 2020-01-22 | 2021-01-20 | Dental prosthetic abutment for placing a prosthetic crown on a dental implant |
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| Country | Link |
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| WO (1) | WO2021148696A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5779480A (en) * | 1996-05-21 | 1998-07-14 | Degussa Aktiengesellschaft | Prosthetic abutment for dental implants |
| WO2001049199A2 (en) * | 2000-01-04 | 2001-07-12 | Straumann Holding Ag | Intraosteal dental implant and combined arrangement |
| US20080057476A1 (en) * | 2006-08-29 | 2008-03-06 | Straumann Holding Ag | Abutment for a dental implant |
| EP3398553A1 (en) * | 2017-05-02 | 2018-11-07 | Ophir Fromovich | Improved dental implant system |
-
2021
- 2021-01-20 WO PCT/ES2021/070033 patent/WO2021148696A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5779480A (en) * | 1996-05-21 | 1998-07-14 | Degussa Aktiengesellschaft | Prosthetic abutment for dental implants |
| WO2001049199A2 (en) * | 2000-01-04 | 2001-07-12 | Straumann Holding Ag | Intraosteal dental implant and combined arrangement |
| US20080057476A1 (en) * | 2006-08-29 | 2008-03-06 | Straumann Holding Ag | Abutment for a dental implant |
| EP3398553A1 (en) * | 2017-05-02 | 2018-11-07 | Ophir Fromovich | Improved dental implant system |
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