DENTAL BRIDGE ATTACHMENT SYSTEM AND METHOD
Provided is a removable bridge system for attachment to a plurality of dental implants, including a plurality of abutments, each including a seat portion conforming with a shape of a corresponding implant head and allowing fixedly positioning of the abutment to the implant, and an abutment head. At least one of the abutments is configured as a locking abutment and includes a locking portion. A bridge generally conforming with dental parameters of the individual has a bottom surface formed with a receiving apertures shaped so as to snugly fit over a corresponding abutment head. The bridge further includes a locking arrangement for removably locking the bridge to the abutments, and including one or more locks for detachable locking to a respective at least one locking abutment.
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The present disclosed subject matter is concerned with a system and a method for attachment of a dental bridge to dental implants of an individual.
BACKGROUND OF THE INVENTIONPartial or complete loss of an individual's natural teeth, either or both at the upper and lower jaw, due to age, accident, diseases or other reasons has some serious effects on an individual, both functionally and socially. Lack of teeth poses several serious functional problems such as distortion of the individual's face, not being able to chew, speech difficulties, etc. Even more so, a smile with a full set of white teeth is considered something to be desired, i.e. esthetics play an important role. These problems become more severe depending on the number of missing teeth.
Utilization of artificial denture appliance poses a general problem concerned with retention of same in position as during normal chewing or talking, the appliance may have the tendency to ride up out of its position, causing speech difficulties, chewing difficulties, spitting and other social unpleasant situations, resulting in general unsatisfactory.
The term dental bridge (often simply referred to as bridges) as used herein the specification and claims denotes an integrated array of artificial teeth mimicking the teeth of a individual and designed for anchoring over two or more studs fixed to the individual's jaw bone (mandibular or maxillar), without the skirt portion, i.e. the gum mimicking portion (at times referred to as an ‘acrylic flange’). The term mimicking suggests that the bridge follows the individual's anatomical parameters, such as shape, size, color etc.
The terms studs and implants are used interchangeably throughout the specification and claims.
A challenge in this field is designing and manufacturing the bridge so as to achieve perfect fitting thereof to the particular needs and anatomical parameters of the individual.
There are known personalized dentures, such as, for example, US 2006/0223029, disclosing a removable denture system comprising a support beam fixedly attached to the individual's alveolar ridge above the mucous membrane by a plurality of dental implants, and a denture generally conforming with the dental parameters of the individual and integrated with a super-structure. The super-structure comprises at least a portion shaped in confirmation with the support beam, and a denture locking arrangement for removably, though fixedly articulating the denture to the support beam preventing unintentional disengagement of the denture.
Dental bridges are known to be fixed to implants by means of connecting elements, referred to as ‘abutments’, or by direct fixing thereof to the implants. An abutment is usually fastened to the implant at its one end and to a bridge or another element at its other end. In the installed state the abutments are usually invisible or visible to a limited degree in the patient's mouth. One example of such abutments is disclosed in U.S. Pat. No. 6,788,986.
SUMMARY OF THE INVENTIONThe present disclosed subject matter is concerned, according to a first aspect thereof, with a dental bridge configured for fixedly detachable anchorage over the studs, i.e. in a fashion facilitating fast and easy mounting yet fixedly supporting so as to obtain a sturdy and secure engagement to the studs, and however suited for easy removal.
According to this aspect of the present disclosed subject matter there is provided a removable bridge system for attachment to a plurality of dental implants, each implant having an implant body fixedly received inside a jawbone of an individual and an implant head projected from said jawbone. The system comprises:
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- a plurality of abutments, each comprising a seat portion formed with a shape conforming with a shape of a corresponding implant head and allowing fixedly positioning of the abutment to the implant, and an abutment head; at least one of said abutments is configured as a locking abutment and comprises a locking portion;
- a bridge generally conforming with dental parameters of the individual, having a bottom surface formed with a receiving apertures, each aperture shaped so as to snugly fit, at high tolerance, over a corresponding abutment head; and
- the bridge further comprises a locking arrangement for removably locking the bridge to said abutments, and comprising one or more locks for detachable locking to a respective at least one locking abutment.
The load applied through the bridge while chewing is fully born by the abutments and directed to the studs (and further to the bone tissue), whilst the one or more locks substantially do not bear any loads. Furthermore, the tolerance between the receiving apertures of the bridge and the respective abutment heads is tight, so as to reduce, or substantially eliminate any tolerance and respective motion therebetween. However, removal of the bridge is facilitated substantially without the need of any tools.
It is further noted that whilst the locking mechanism in itself does not bear loads (i.e. a locking pin, where provided is not subject to any loads), the housing of the locking mechanism may function as a receiving aperture configured for snugly bearing over the locking abutment.
The present invention disclosed subject matter further calls for a method for applying a patient with a dental bridge at a removably secured fashion, the method comprises the following steps:
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- fixing at least two implants inside a jawbone of the individual, each having an implant body fixedly received within the jawbone and an implant head projected from said jawbone;
- obtaining a plurality of abutments each comprising a seat formed with a shape conforming with a shape of a corresponding implant head, and an abutment head, wherein at least one of said abutments is configured as a locking abutment and comprises a locking portion. Fixing said seat portions of the abutments over said implant heads;
- providing a bridge generally conforming with dental parameters of the individual, having a bottom surface configured with a plurality of receiving apertures, each conforming at high tolerance with the shape of a respective abutment. Said bridge further configured with at least one lock for detachable locking to a respective at least one locking abutment;
- snugly fitting said bridge over corresponding abutment heads and locking/unlocking the locking arrangement.
Any one or more of the following features and designs may be incorporated in the bridge system and method in accordance with the present disclosed subject matter:
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- The locking arrangement comprises at least one and typically two or more locks for releasable locking engagement;
- The seat portion of the abutments extends about a fixation bore (for securing thereof to the implants by abutment screws) configured with an inner shape corresponding with an outer shape of the implant head;
- The seat portion of the abutments may be of any regular or irregular shape;
- The abutments are made of any rigid, metallic or non-metallic material (such as, for example, metals—gold, titanium, chrome-cobalt, zirconium, porcelain, plastic/acrylic/polymeric materials, composite materials, and combinations thereof);
- The bridge is made of any rigid, metallic or non-metallic material (such as, for example, metals—gold, titanium, chrome-cobalt, zirconium, porcelain, plastic/acrylic/polymeric materials, composite materials, and combinations thereof);
- The locking arrangement comprises any type of one or more locks such as swivel-type, magnet based locks, locators, or any other type of locking mechanism;
- According to one example the locks are a pin-type locks, each lock configured with a locking pin displaceable through either a rear face (lingual face) or a front face (labial face) of the bridge, between a locked position in which it arrests a locking bore configured at the locking portion of a respective locking abutment (wherein the bridge is prevented from displacement about a path of insertion thereof), and un-locked position where it is disengaged from said locking portion (and whereby the bridge may be removed along its path of insertion);
- An ejection bore may extend across the abutment and dental bridge, coaxial with the locking pin, to assist in displacing the pin into the unlocked position;
- The bridge system may be mounted over an adapter abutment to be received between the seat portion of the abutment and the implant head. This option is especially useful when the gum tissue is relatively high, or when angular adjustment is required respective to a longitudinal axial of a respective dental implant;
According to another aspect of the present disclosed subject matter there is disclosed an adapter abetment to be received between the seat portion of the abutment and the implant head. This option is especially useful when the gum tissue is relatively high, or when angular adjustment is required respective to a longitudinal axial of a respective dental implant.
Even more so, the adapter abetment is suitable for coupling and interconnecting between different types of different implant systems.
The adapter abutment is configured with an adapter seat portion configured for motionless fixation over a dental implant head and defining an adapter seat portion axis, and an adapter head portion configured for motionless affixing thereto a seat portion of an abutment, and defining an adapter head portion axis; with an adapter abutment body portion extending between said adapter seat portion and said adapter head portion. However, the head portion of an adapter abutment may also be suited for directly supporting the bridge.
Any one or more of the following features and designs may be incorporated in an adapter abutment in accordance with the present disclosed subject matter:
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- The adapter seat portion axis and the adapter head portion axis may coextend or may be parallel to one another though non-coaxial, or intersect one another;
- The adapter abutment body portion may extend coaxial with any of the said adapter seat portion and said adapter head portion;
- Each of the adapter seat portion and the adapter head portion may be of any regular or irregular shape;
- Each of the adapter seat portion and the adapter head portion may be configures as either a mail-type coupler (referred to in the art as ‘internal connection) or a female-type coupler (referred to in the art as ‘external connection), configured for fixedly coupling engagement, at fixed angular orientation, with respect to a dental implant head and a seat portion of an abutment, respectively. It is noted that the phrase hex refers in fact to any polygonal shape;
- The adapter seat portion and the adapter head portion may be identical couple-types or different coupler-types;
- The adapter abutment may be secured over the head of a standard abutment and further to the dental implant head using a single fastener screw;
- An abutment may be secured directly over the adapter head portion, and/or via a fastener screw.
- The adapter abutment, at an assembled position of the dental bridge, are fully received and concealed within the dental bridge;
- The adapter abutment may comprise a locking portion, for locking engagement with a locking arrangement;
- The adapter abutment allows to extend (elongate) the implant to a desired height and at a desired angle with respect to the implant, so as to allow convenient fixation of elements such as abutments and unitary braces described above, or other elements adapted to be fixed on the dental implants.
According to another aspect of the present disclosed subject matter there is provided a bridge system for attachment to a jawbone of an individual, the system comprising:
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- a plurality of dental implants, each configured with an implant body for fixedly receiving inside the jawbone, and an implant head projected from said jawbone;
- a Reduced Bridge-Core made of rigid material and configured for fixedly mounting and securing to the plurality of dental implants over the implant heads, or over abutments (secured in turn to the dental implants);
- a Super Dental-Bridge generally conforming with the dental parameters of the individual, and formed with a bottom surface having a recess extending substantially there along; the Super Dental-Bridge is adapted for snugly receiving said Reduced Bridge-Core within said recess at a tight fit; and
- a fixing arrangement for fixing said Super Dental-Bridge to said Reduced Bridge-Core.
The load applied through the Super Dental-Bridge while chewing is fully born by the Reduced Bridge-Core and is then directed to the abutments and further to the studs to the bone tissue, whilst the one or more locks substantially do not bear any loads.
Furthermore, the tolerance between the receiving apertures of the Super Dental-Bridge and the respective Reduced Bridge-Core is tight, so as to reduce, or substantially eliminate any tolerance and respective motion therebetween.
However, when using locator-type locking mechanisms (or similar type locking mechanisms), axially directed loads only, are transferred through a longitudinal axis of the locator.
It is further noted that whilst the locking mechanism in itself does not bear loads (i.e. a locking pin, where provided is not subject to any loads), the housing of the locking mechanism may function as a receiving aperture configured for snugly bearing over the locking abutment.
Any one or more of the following features and designs may be applied to the bridge system in accordance with the present disclosed subject matter described above:
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- The Reduced Bridge-Core is a unitary element and continuously extends within the Super Dental-Bridge;
- The recess configured at the bottom surface of the Super Dental-Bridge is continuous;
- The recess configured at the bottom surface of the Super Dental-Bridge is deeper than the height of the Reduced Bridge-Core, such that at the assembled position, when the Super Dental-Bridge is mounted over the Reduced Bridge-Core, the later is concealed by the Super Dental-Bridge;
- The Reduced Bridge-Core is configured in a shape simulating the individual's dental parameters, and his teeth, though at reduced scale;
- Base portions of the Reduced Bridge-Core conform with the shape of respective implant heads, and configured for fixedly securing thereto;
- The reduced bridge is configured for fixedly securing directly over the implant heads, or over abutments which in turn are fixed to the implants;
- The Reduced Bridge-Core is made of any rigid, metallic or non-metallic material (such as, for example, metals-gold, titanium, chrome-cobalt, zirconium, porcelain, plastic/acrylic/polymeric materials, composite materials, and combinations thereof);
- The Super Dental-Bridge is made of any rigid, metallic or non-metallic material (such as, for example, metals-gold, titanium, chrome-cobalt, zirconium, porcelain, plastic/acrylic/polymeric materials, composite materials, and combinations thereof). When the material of which the Super Dental-Bridge is a structural material, there is need to apply thereto a finishing layer mimicking the shape, size, color and texture of the natural teeth;
- The fixing arrangement may be a locking mechanism facilitating repeatable locking/unlocking of the Super Dental-Bridge over the Reduced Bridge-Core, where removal of the Super Dental-Bridge is facilitated by the individual, or a fixed securing arrangement, where removal of the Super Dental-Bridge is facilitated by dentist rather than by the individual;
- Where there is provided a locking mechanism facilitating repeatable locking/unlocking of the Super Dental-Bridge over the Reduced Bridge-Core, there may be provided, within the Super Dental-Bridge, a reinforcement structure configured for supporting the one or more locking mechanisms within the Super Dental-Bridge;
- A fixed securing arrangement may be an adhesive/bonding agent applied between the Super Dental-Bridge and the Reduced Bridge-Core, or fasteners such screws and the like.
- A locking mechanism may be any type of one or more locks such as swivel-type, magnet based locks, locators, etc.;
- There are one or more locks, being pin-type locks, each lock configured with a locking pin displaceable through either a rear face (lingual face) or a front face (labial face) of the Super Dental-Bridge, between a locked position in which it arrests a locking bore configured at the locking portion of a respective locking abutment (wherein the bridge is prevented from displacement about a path of insertion thereof), and un-locked position where it is disengaged from said locking portion (and whereby the bridge may be removed along its path of insertion);
- An ejection bore may extend across the abutment and Super Dental-Bridge, coaxial with the locking pin, to assist in displacing the pin into the unlocked position;
In order to understand the invention and to see how it may be carried out in practice, embodiments will now be described, by way of non-limiting examples only, with reference to the accompanying drawings, in which:
With reference to
The dental bridge 22 is an integrated array of artificial teeth 28 (with substantially no real gaps therebetween), mimicking the natural lost teeth of a individual, i.e. follows the individual's anatomic parameters, such as shape, size, color etc., and conforming with resident natural teeth or artificial teeth of the individual, however without a skirt portion i.e. a gum mimicking portion (at times referred to as an ‘acrylic flange’). The dental bridge is made of any rigid and hard metallic or non-metallic material (such as, for example, metals—gold, titanium, chrome-cobalt, zirconium, porcelain, plastic/acrylic/polymeric materials, composite materials, and combinations thereof), molded or machined or composited of several materials and layers.
With reference to
The dental implants 26, typically made of metal, are each configured with a body portion 36 and a head portion 38, and extend about a longitudinal axis A1. The body portion 36 of the dental implants 26 is fixedly received within jawbone J of an individual and extends through the gum tissue G such that implant head 38 projects there through. Each implant head 38 comprises an upward extension 45 of a hexagonal shape, as shown in
Each of the abutments 24 is configured for fixedly securing to a respective implants 26, and for that purpose each abutment 24 comprises a seat portion 40 having a receptacle 42 (
The abutment 24 is further configured with an abutment head 48, designed for snugly fitting within the corresponding aperture 34 configured at the bottom surface 29 of the bridge 22. The abutment head 48 of at least several of the abutments (or all) is formed with a lock cradling portion 52 configured to receive a lock housing 70 of a lock mechanism 72 as will be discussed hereinafter in connection with
The abutment head 48 further comprises a through going bore 50 (
The abutments 24 are made of any rigid and hard metallic or non-metallic material (such as, for example, metals—gold, titanium, chrome-cobalt, zirconium, porcelain, plastic/acrylic/polymeric materials, composite materials, and combinations thereof), molded or machined or composited of several materials and layers.
The abutment 24 illustrated in
It is further appreciated that the number of locks 72 may change, depending on different parameters such as space, strength of material, accessibility thereto by the individual, etc. it is also noted that one or more of the abutments may be regular abutments, i.e. not configured with a locking portion of at least one of said abutments is configured as a locking abutment and comprises a locking portion 52 (cradling portion 52). Thus, where for some reason it is required to provide fewer locks (however one or more are required) whilst preparing for optional additional rings, the abutments may be of the type disclosed hereinabove in connection with
The locking arrangement generally designated 30 is configured for removably fixing the bridge 22 to the abutments 24. The locking arrangement 30 comprises one or more locks 72 (two locks in the example of
The locks 72, as can be seen in more detail in
The housing serves as a bushing accommodating an axially displaceable locking pin locking pin 62 fitted with a locking portion (extending at the distal end thereof, namely within the receiving aperture 34 of the bridge 22) and formed with an annular limiting ring 79 (
As already mentioned hereinabove, the shape and size of the lock's housing 70 is configured such that when a bridge is applied over the abutments, the inside walls of the receiving apertures 34 of the bridge 22 snugly embrace the respective abutments and the respective locking portion 52 (
The arrangement is such that after applying and positioning the bridge over the abutments 24, the locking pin 62 is depressed inwards into the position of
The load applied through the bridge 22 while chewing is fully born by the abutments 24 and directed to the studs 26 (and further to the jaw bone J), whilst the one or more locks 72 substantially do not bear any loads. Furthermore, the tolerance between the receiving apertures of the bridge and the respective abutment heads is tight, so as to reduce, or substantially eliminate any tolerance and respective motion therebetween.
However, removal of the bridge is facilitated substantially without the need of any tools. It is further appreciated that the locking arrangement is intended rather to prevent unintentional disengagement or removal of the bridge, for example while chewing.
It is further noted that whilst the locking mechanism in itself does not bear loads (i.e. the locking pin, where provided is not subject to any loads), whilst the housing of the locking mechanism may function as a receiving aperture configured for snugly bearing over the locking abutment.
As mentioned above, there may be provided a fine ejection bore (71 in
Turning now to
It is also noted that various modifications are provided for the abutments. For example, the abutment 100 of
In the example of
In the example of
The abutment 160 exemplified in
The abutment 180 of
Each of the abutments 100, 120, 140, 160 and 180, has a seat configured for fixedly engagement over a head portion 38 of a dental implants 26 configured with an upward extension 45 (
It is appreciated that the body portion, and at times the head portion and the respective arresting portion of the abutments, are manufactured at high tolerance to provide for tight, snug arresting within the respective receiving aperture formed at the bottom face of the bridge.
An abutment having a non-coaxial configuration between the seat axis AS and the head axis AH, when fixed on the implant head, the abutment may be oriented in any desired direction with respect to the longitudinal axis A1 of the implant, i.e. it may coextend, or extend parallel to one another (though not coextend), or may intersect one another. The choice of abutments and their positioning/orientation are determined according to the physiological and anatomic parameters of the individual, e.g. face structure, jaw bone dimensions and status, teeth size, gums situation, implant angulation, etc.
With reference now being made to
A head portion 338 of the screw 330 is configured with a threaded bore 340 and an external connection crown-like portion 346. An adapter abutment 350 is provided and is secured over the standard abutment 308. This is facilitated by a fixing screw 354 extending through an axial bore 356 of the adapter abutment 350 and fixedly engageable within the threaded bore 340 of screw 330. A bottom portion of the adapter abutment 350 (not seen) is configured with a receiving aperture 358, formed with hexagonal walls corresponding with those of the crown-like portion 310 of the standard abutment 308, whereby the adapter abutment 350 may be fixedly positioned at any desired angular setting.
The adapter abutment 350 is further configured with a locking pin arresting portion 360 and a pin arresting aperture 362 designed for arresting a locking pin 366 and the locking pin 368, respectively.
The above configuration facilitates for extending (elongating) the implant to a desired height and at a desired angle with respect to the implant, so as to allow convenient fixation of elements such as abutments and unitary braces described above, or other elements adapted to be fixed on the dental implants
Noticeable, the arrangement disclosed in
Further attention is now directed to
The Super Dental-Bridge 404 is integrated with a plurality of teeth 418 generally conforming with dental parameters of the individual, so that the teeth 418 mimicking the individual's natural teeth as far as shape, size, color etc. The term integrated suggests that the teeth are continuous i.e. are attached to one another though interstices may show. The bridge is made of any rigid and hard metallic or non-metallic material (such as, for example, metals—gold, titanium, chrome-cobalt, zirconium, porcelain, plastic/acrylic/ polymeric materials, composite materials, and combinations thereof), molded or machined or composited of several materials and layers.
The Super Dental-Bridge 404 is configured with a rear (lingual) face 420, a front (labial) face 422 and as bottom surface 426 (
The Reduced Bridge-Core 408 is made of any rigid metallic or non-metallic material (such as, for example, metals—gold, titanium, chrome-cobalt, zirconium, porcelain, plastic/acrylic/polymeric materials, composite materials, and combinations thereof), molded or machined or composited of several materials and layers. The Reduced Bridge-Core 408 is formed with several thoroughgoing bores 432 (extending at an upright plane) from a top surface thereof 434 (
The Super Dental-Bridge 404 and the Reduced Bridge-Core 408 are shaped and sized conjointly i.e. such that the bridge fits at fit tolerance over the Reduced Bridge-Core, with substantial no tolerances therebetween, to thereby substantially eliminate any relative displacement therebetween.
According to a first example (
The Reduced Bridge-Core 408, according to one of its examples, is shaped so as to generally follow the shape of the individual's natural teeth, though at reduced scale. This arrangement results in a small Reduced Bridge-Core 408, resulting in that the bridge need not be too large either, thus rendering it suitable also for individuals having small face structure. However, the bridge snugly mounts over the Reduced Bridge-Core, embracing it (apart of course from the bottom face of the Reduced Bridge-Core), thus providing adequate fit and motion free engagement therebetween, wherein the Reduced Bridge-Core is not noticeable.
In the example of
The locks 414 (four in the present example, though any appropriate number of locks is possible), are configured for fixing the bridge over the Reduced Bridge-Core, however permitting it's readily and easy removal by the individual. Yet, it is noted that any loads applied through the Super Dental-Bridge while chewing are fully born by the Reduced Bridge-Core (and through the abutments to the studs and to the respective jaw bone) whilst any one or more locks substantially do not bear any loads. Furthermore, the tolerance between the receiving aperture of the bridge and the respective Reduced Bridge-Core is tight, so as to reduce, or substantially eliminate any tolerance and respective motion therebetween. However, removal of the bridge is facilitated substantially without the need of any tools.
In this example too, the Super Dental-Bridge may be configured with a fine bore extending across the respective Reduced Bridge-Core and the dental bridge, coaxial with the displaceable locking pin, to assist in extracting the pin into the unlocked position, by pushing it inwards using a fine rod. The locks may be configured on either or both the front face and the rear face of the Super Dental-Bridge.
The example of
With further reference now being made to
The adapter abutments of
The base portion of each adapter abutment is configured for fixedly securing over a stud (not shown, however for example of the type shown in
In
The head portion 704, 714, 724 and 734 of each of the adapter abutments 700, 710, 720, and 730, respectively, is also configured with a connector for coupling to a respective bridge supporting abutment at a fixed, substantially motion less manner. Head connectors 708, 718 and 728 are female type connectors, for supporting a corresponding male type seat connector of the bridge supporting abutment. The head portion 734 of adapter abutment 730 is configured with an external female type connector 738, for supporting a corresponding female type connector of the bridge supporting abutment (not shown).
In the present examples the coupling connectors (708, 718, 728, 738, 706, 716, 726 and 736) are illustrated as regular polygonal shapes. However, the connectors may vary in shape, and size and may be any regular or irregular shape, internal or external (male or female type).
Furthermore, the head portion of each of the adapter abutments may extend at an angle with respect to a corresponding seta portion (
The provision of adapter abutments is desired for one or more of the following reasons:
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- Increasing the height of a bridge supporting abutment (i.e. the abutment over which a bridge is received) with respect to a stud;
- Changing the angle of a bridge supporting abutment with respect to an axial axis of the stud;
- Changing a coupling platform to a bridge supporting abutment;
- Changing a coupling platform to a stud;
- Interconnecting between different implant systems.
Those skilled in the art to which the present disclosed subject matter pertains will readily appreciate that numerous changes, variations, and modifications can be made without departing from the scope of the invention, mutatis mutandis.
Claims
1.-27. (canceled)
28. An adapter abutment to be received between a dental implant head and a seat portion of an abutment, the adapter abutment, comprising:
- an adapter seat portion configured for motionless fixation over said dental implant head and defining an adapter seat portion axis;
- an adapter head portion configured for motionlessly affixing thereto a seat portion of said abutment, and defining an adapter head portion axis; and
- an adapter abutment body portion extending between said adapter seat portion and said adapter head portion.
29. The adapter abutment according to claim 28, wherein the adapter seat portion axis and the adapter head portion axis extend at any position respective to one another, coextending, parallel or intersecting one another.
30. The adapter abutment according to claim 28, wherein the adapter abutment body portion extend coaxially with any one of the adapter seat portion and the adapter head portion.
31. The adapter abutment according to claim 28, wherein one or more of the adapter seat portion and the adapter head portion are of any regular or irregular shape.
32. The adapter abutment according to claim 28, wherein one or more of the adapter seat portion and the adapter head portion configure as either a male-type coupler or a female-type coupler, configured for fixedly coupling engagement, at fixed angular orientation, with respect to a dental implant head and a seat portion of an abutment, respectively.
33. The adapter abutment according to claim 28, configured for securing directly over the head of the dental implant, by a fastener screw.
34. The adapter abutment according to claim 28, configured for securing directly over the adapter head portion of an abutment, by a fastener screw.
35. The adapter abutment according to claim 28, comprising a locking portion configured for locking engagement with a locking arrangement of a dental bridge.
36. The adapter abutment according to claim 28, comprising a througoing bore coaxial with the adapter seat portion axis, and a threaded bore extending along the adapter head portion axis.
37. The adapter abutment according to claim 36, wherein said througoing bore has a seat opening at a side wall portion of the adapter abutment and an opening at the adapter seat portion.
Type: Application
Filed: Feb 16, 2015
Publication Date: Jun 11, 2015
Applicant: DENTAL INNOVISION LTD (Road Town)
Inventor: Uzi BERGER (Hod Hasharon)
Application Number: 14/623,295