CA2921453A1 - T-implant/two-piece integrated implant system - Google Patents
T-implant/two-piece integrated implant system Download PDFInfo
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- CA2921453A1 CA2921453A1 CA2921453A CA2921453A CA2921453A1 CA 2921453 A1 CA2921453 A1 CA 2921453A1 CA 2921453 A CA2921453 A CA 2921453A CA 2921453 A CA2921453 A CA 2921453A CA 2921453 A1 CA2921453 A1 CA 2921453A1
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- implant
- bone
- component
- screwed
- dental
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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
- A61C8/001—Multiple implanting technique, i.e. multiple component implants introduced in the jaw from different directions
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Prosthetics (AREA)
Abstract
A dental implant system utilizes a threaded biocompatible titanium or its alloys, which is cylindrical in form and has a large number of longitudinal channels so it can be (i) screwed into place in a prepared recess in the patient's bone, (ii) screwed with high torque motor into place or (iii) then turned to anchor it in second implant and bone ridges formed when it is pushed into place. An implant is used as an anchor to restore the patient's dentition to function by replacing the missing tooth or teeth. The anchor function of the implant is achieved by maximum contact with the bone to get osseointegration. There are situations that possibly preclude maximum surface area of contact of an implant for example vertical bone loss. The current implant system invention is aimed to unplug some of the deficiencies of previous implant systems.
Description
Description FIELD OF THE INVENTION
This invention shares generally the field of dentistry and in particular to dental implants.
BACKGROUND OF INVENTION
The field of implant dentistry deals with the replacement, rehabilitation and maintenance of one or more edentulous sites in a patient's dentition where the natural teeth have been lost or were missing. To replace a natural tooth, an implant is placed in patient's bone, allowed to heal. Once osseointegrated an abutment is attached to the implant.
The dental abutment in turn provides an interface between the implant and a dental restoration. The dental restoration is typically a porcelain crown fashioned to replicate the shape of the tooth being replaced. Therefore, a dentist relies on a wide variety of biocompatible artificial structures of which implant, abutment and crown are significant.
Implants are made from various materials. The most commonly advocated implants are milled from titanium and its alloys thereof and are available in various sizes and shapes.
The implants are placed surgically in three ways ¨ a two-stage surgical protocol, single stage and single stage with immediate loading. In two-stage technique, usually the first stage is when a hole is drilled into the bone and the implant is screwed, tapped or pushed in, soft tissue sutured and allowed to heal. The long-term integrity of the prosthesis is highly dependent on the successful osseointegration of the implant with the bone structure i.e. direct apposition. Once the implant has osseointegrated into the bone, a second surgery is done to expose the implant and the process of a permanent crown is initiated. The entire procedure is technique sensitive, expensive, requires extensive knowledge base, and is carried out over several visits to the dentist.
There are a variety of factors influencing the successful osseointegration of implant. The single most important factor influencing the long term and short term success of implant is initial primary stabilization within the bone. In addition, the osseointegration also depends upon the quality and quantity of bone available for initial stabilization. A
literature review focusing on the causes of implant failure indicated these problems primarily occur within 18 months of initial implant loading. These early implant loading failures occur most often in the softest bone types (16% failure) or the shortest implant lengths (17% failure). These two failure groups are typically caused by biomechanical factors. Soft bone is too weak for the occlusal forces applied to the implants, or short implants have higher stresses at the bone-implant interface. Moreover, wider root form implants have a greater area of bone contact than narrow implants (of similar design).
Very soft bone may strip during a threaded implant insertion. This may result in lack of initial fixation, and the implant will not be rigid.
During implant placement the dentist faces many challenging anatomical and technical difficulties. For example, with the advanced age there is significant loss of alveolar bone height both in maxilla and mandible and proximity of vital structures like nerves and blood vessels.
My invention has recognized, among other things, that when a large section of the mandibular or maxillary bone has been compromised or destroyed, such as by early or long ten-n tooth loss, insufficient vertical bone volume can be present for affixing a dental implant to bone at the edentulous site. In such instances, the unsuitable foundation can preclude the use of conventional dental implants that are used as an anchoring member.
The current invention aims to overcome several such current problems faced during placing a dental implant. The object of this invention is to provide a dental implant that can be placed in a way as to obtain significant initial primary stabilization.
Another objective is to reduce the vertical height of the implant in thin ridge situations and utilize the thicker bottom part of the ridge to support small implant in the housing of horizontal implant. This is based on the premise the greater the functional surface area of the bone implant contact, the better the support system for the prosthesis, resulting from their increased circumferential bone contact areas.
Another important object of this invention is to provide an implant system that utilizes a screw anchor so constructed that it can be precisely trimmed (1) to locate the screw threads at the required minimum distance beneath the bone crest; and (2) to locate the top of the implant just slightly above the bone crest.
It is yet another object of this invention to allow for fast osseointegration directly around and into the placed implant. It is also the object of the invention to provide a kit of different sized, angled and shaped dental implant that fits most sites.
SUMMARY OF THE INVENTION
The main purpose of this invention is to provide initial primary stabilization of the implant for its successful integration. This can be primarily achieved by having a horizontal implant to which the vertical component can attach. This provides immediate strong stabilization of the implant. The present inventive dental implant comprises the following: (a) a horizontal component (HC) that when placed from buccal approach through the buccal cortical plate and aligned in such a manner that the female receptacle faces the occlusal/incisal side; (b) HC engages the buccal cortical plate but may or may not engage the lingual cortical plate; (c) a vertical component (VC) that when placed from the incisal or occlusal aspect of bone engages and screws into the female receptacle.
Both the implants thus hold each other and cortex tightly providing direct primary stability to the placed implants. The configuration of the joined T- segments thus distributes forces (that are normally to the central axis of the vertical segment) to that horizontally placed along path. In one embodiment of the invention, the force that was being borne by the cancellous bone is being minimized by distributing it over the buccal cortical plate. In yet another embodiment of the invention the surface area of osseointegration is increased in relation to the increased surface area of the available titanium oxide layer on the horizontal implant component DETAILED DESCRIPTION OF THE DRAWINGS
The attached FIGS. 1-5 show various embodiments of the present inventive dental implant system for secure placement into the bone. (Fig. 1). As seen in the attached figures, the present inventive dental implant system (1), across all of the disclosed embodiments, consists of two main components Horizontal (2,3), Vertical (5), a central axis extending from the coronal end to the apical end of vertical component.
In operation.
The joined segments of the implant system include a vertical and horizontal and the HS
and VS fit in perpendicular paths while the axis of the female and male components are parallel normal to the central axis of vertical component. The components of the dental implant (1) are made of biocompatible material such as Titanium and/or alloys or ceramic.
A first embodiment of the present invention is shown in FIGS.1 In Figure 1: The assembly shows both the horizontal and vertical components in secure interdigitation with each other and the bone. This utilized two cortices to further strengthen the primary stability of the implant system.
In Figure 2 and 3: The Horizontal implant component is shown in gross lateral and sectional view precisely denoting the location of the female receptacle in the implant system. Figure 4 shows the facial or buccal view of the same component with directional orientation of the implant system.
In Figure 5: The core coronal end further consists of a receptacle which may receive a dental prosthesis, abutment, dental crown or healing cap, or, as seen in (Fig.
1), is configured to receive a socket wrench or other suitable tool to rotate the core during placement of the dental implant. The core coronal end may also consist of a circumferential lip or rim (b). In this configuration, the lip or rim restricts the continued progression of the core into the female receptacle (Fig 3 a) of the Horizontal component.
The body of implant is designed to allow fast osseointegration of the dental implant into the surrounding bone. The arrangement of the blades, troughs, ridges (Fig 2 a, b) on each of the joined segments allows for better osseointegration of bone as they provide a path for bone growth.
Dental implants of various sizes and configurations according to the present invention, along with trial models, may be prepared and provided in kits to fit most bone forms and to enable the dentist or dental professional to select an implant that best fits the patient chair-side.
In operation, the joined segments:
The dental implant (Fig 1) disclosed herein generally works such that: 1. The dentist determines the thickness of the available bone bucco-lingually. 2. The dentist prepares the implant site by removing bone from the surgical site. 3. Using a gauge, the dentist chooses the size of the dental implant required. Alternatively, the manufacturer may supply a set of implant duplicates or trial models. Once the correct size is determined, the matching implant (or device) can be fitted with confidence. 4. The entire horizontal dental implant will allow the cutting edges of the blades on each of the joined segments of the anchor to grip the walls of the bone. The directional orientation for the female receptacle (Fig 4) will allow the positioning to be accurate occlusally. 5.
The Vertical implant, depending on the embodiment, is then rotated using a wrench or similar device and secured in the female receptacle in the horizontal component. This causes the assembly/binding of the two implant segments to each other. This action results in the horizontal ridges of the joined segments to also come into contact with the walls of the bone and drives the cutting edges of the blades into the bone surrounding the tooth socket. 6. The tightly locked dental implants and cortices, create sufficient primary stability and thereby allow osseointegration to occur. 7. The reflected flap is sutured to approximate the surrounding tissues. At a suitable time, a dental prosthesis or healing cap can be placed at the coronal end of the dental implant. 8. The implant site is allowed to heal and is reviewed on a regular basis by the dentist. 9. If the dental implant demonstrates excellent primary stability from the outset, it may be possible to immediately place an abutment and crown restoration.
While the present invention has been described in connection with a specific application, this application is exemplary in nature and is not intended to be limiting on the possible applications of this invention. It will be understood that modifications and variations may be effected without departing from the spirit and scope of the present invention. It will be appreciated that the present disclosure is intended as an exemplification of the invention and is not intended to limit the invention to the specific embodiments illustrated and described. The disclosure is intended to cover, by the appended claims, all such modifications as fall within the scope of the claims.
This invention shares generally the field of dentistry and in particular to dental implants.
BACKGROUND OF INVENTION
The field of implant dentistry deals with the replacement, rehabilitation and maintenance of one or more edentulous sites in a patient's dentition where the natural teeth have been lost or were missing. To replace a natural tooth, an implant is placed in patient's bone, allowed to heal. Once osseointegrated an abutment is attached to the implant.
The dental abutment in turn provides an interface between the implant and a dental restoration. The dental restoration is typically a porcelain crown fashioned to replicate the shape of the tooth being replaced. Therefore, a dentist relies on a wide variety of biocompatible artificial structures of which implant, abutment and crown are significant.
Implants are made from various materials. The most commonly advocated implants are milled from titanium and its alloys thereof and are available in various sizes and shapes.
The implants are placed surgically in three ways ¨ a two-stage surgical protocol, single stage and single stage with immediate loading. In two-stage technique, usually the first stage is when a hole is drilled into the bone and the implant is screwed, tapped or pushed in, soft tissue sutured and allowed to heal. The long-term integrity of the prosthesis is highly dependent on the successful osseointegration of the implant with the bone structure i.e. direct apposition. Once the implant has osseointegrated into the bone, a second surgery is done to expose the implant and the process of a permanent crown is initiated. The entire procedure is technique sensitive, expensive, requires extensive knowledge base, and is carried out over several visits to the dentist.
There are a variety of factors influencing the successful osseointegration of implant. The single most important factor influencing the long term and short term success of implant is initial primary stabilization within the bone. In addition, the osseointegration also depends upon the quality and quantity of bone available for initial stabilization. A
literature review focusing on the causes of implant failure indicated these problems primarily occur within 18 months of initial implant loading. These early implant loading failures occur most often in the softest bone types (16% failure) or the shortest implant lengths (17% failure). These two failure groups are typically caused by biomechanical factors. Soft bone is too weak for the occlusal forces applied to the implants, or short implants have higher stresses at the bone-implant interface. Moreover, wider root form implants have a greater area of bone contact than narrow implants (of similar design).
Very soft bone may strip during a threaded implant insertion. This may result in lack of initial fixation, and the implant will not be rigid.
During implant placement the dentist faces many challenging anatomical and technical difficulties. For example, with the advanced age there is significant loss of alveolar bone height both in maxilla and mandible and proximity of vital structures like nerves and blood vessels.
My invention has recognized, among other things, that when a large section of the mandibular or maxillary bone has been compromised or destroyed, such as by early or long ten-n tooth loss, insufficient vertical bone volume can be present for affixing a dental implant to bone at the edentulous site. In such instances, the unsuitable foundation can preclude the use of conventional dental implants that are used as an anchoring member.
The current invention aims to overcome several such current problems faced during placing a dental implant. The object of this invention is to provide a dental implant that can be placed in a way as to obtain significant initial primary stabilization.
Another objective is to reduce the vertical height of the implant in thin ridge situations and utilize the thicker bottom part of the ridge to support small implant in the housing of horizontal implant. This is based on the premise the greater the functional surface area of the bone implant contact, the better the support system for the prosthesis, resulting from their increased circumferential bone contact areas.
Another important object of this invention is to provide an implant system that utilizes a screw anchor so constructed that it can be precisely trimmed (1) to locate the screw threads at the required minimum distance beneath the bone crest; and (2) to locate the top of the implant just slightly above the bone crest.
It is yet another object of this invention to allow for fast osseointegration directly around and into the placed implant. It is also the object of the invention to provide a kit of different sized, angled and shaped dental implant that fits most sites.
SUMMARY OF THE INVENTION
The main purpose of this invention is to provide initial primary stabilization of the implant for its successful integration. This can be primarily achieved by having a horizontal implant to which the vertical component can attach. This provides immediate strong stabilization of the implant. The present inventive dental implant comprises the following: (a) a horizontal component (HC) that when placed from buccal approach through the buccal cortical plate and aligned in such a manner that the female receptacle faces the occlusal/incisal side; (b) HC engages the buccal cortical plate but may or may not engage the lingual cortical plate; (c) a vertical component (VC) that when placed from the incisal or occlusal aspect of bone engages and screws into the female receptacle.
Both the implants thus hold each other and cortex tightly providing direct primary stability to the placed implants. The configuration of the joined T- segments thus distributes forces (that are normally to the central axis of the vertical segment) to that horizontally placed along path. In one embodiment of the invention, the force that was being borne by the cancellous bone is being minimized by distributing it over the buccal cortical plate. In yet another embodiment of the invention the surface area of osseointegration is increased in relation to the increased surface area of the available titanium oxide layer on the horizontal implant component DETAILED DESCRIPTION OF THE DRAWINGS
The attached FIGS. 1-5 show various embodiments of the present inventive dental implant system for secure placement into the bone. (Fig. 1). As seen in the attached figures, the present inventive dental implant system (1), across all of the disclosed embodiments, consists of two main components Horizontal (2,3), Vertical (5), a central axis extending from the coronal end to the apical end of vertical component.
In operation.
The joined segments of the implant system include a vertical and horizontal and the HS
and VS fit in perpendicular paths while the axis of the female and male components are parallel normal to the central axis of vertical component. The components of the dental implant (1) are made of biocompatible material such as Titanium and/or alloys or ceramic.
A first embodiment of the present invention is shown in FIGS.1 In Figure 1: The assembly shows both the horizontal and vertical components in secure interdigitation with each other and the bone. This utilized two cortices to further strengthen the primary stability of the implant system.
In Figure 2 and 3: The Horizontal implant component is shown in gross lateral and sectional view precisely denoting the location of the female receptacle in the implant system. Figure 4 shows the facial or buccal view of the same component with directional orientation of the implant system.
In Figure 5: The core coronal end further consists of a receptacle which may receive a dental prosthesis, abutment, dental crown or healing cap, or, as seen in (Fig.
1), is configured to receive a socket wrench or other suitable tool to rotate the core during placement of the dental implant. The core coronal end may also consist of a circumferential lip or rim (b). In this configuration, the lip or rim restricts the continued progression of the core into the female receptacle (Fig 3 a) of the Horizontal component.
The body of implant is designed to allow fast osseointegration of the dental implant into the surrounding bone. The arrangement of the blades, troughs, ridges (Fig 2 a, b) on each of the joined segments allows for better osseointegration of bone as they provide a path for bone growth.
Dental implants of various sizes and configurations according to the present invention, along with trial models, may be prepared and provided in kits to fit most bone forms and to enable the dentist or dental professional to select an implant that best fits the patient chair-side.
In operation, the joined segments:
The dental implant (Fig 1) disclosed herein generally works such that: 1. The dentist determines the thickness of the available bone bucco-lingually. 2. The dentist prepares the implant site by removing bone from the surgical site. 3. Using a gauge, the dentist chooses the size of the dental implant required. Alternatively, the manufacturer may supply a set of implant duplicates or trial models. Once the correct size is determined, the matching implant (or device) can be fitted with confidence. 4. The entire horizontal dental implant will allow the cutting edges of the blades on each of the joined segments of the anchor to grip the walls of the bone. The directional orientation for the female receptacle (Fig 4) will allow the positioning to be accurate occlusally. 5.
The Vertical implant, depending on the embodiment, is then rotated using a wrench or similar device and secured in the female receptacle in the horizontal component. This causes the assembly/binding of the two implant segments to each other. This action results in the horizontal ridges of the joined segments to also come into contact with the walls of the bone and drives the cutting edges of the blades into the bone surrounding the tooth socket. 6. The tightly locked dental implants and cortices, create sufficient primary stability and thereby allow osseointegration to occur. 7. The reflected flap is sutured to approximate the surrounding tissues. At a suitable time, a dental prosthesis or healing cap can be placed at the coronal end of the dental implant. 8. The implant site is allowed to heal and is reviewed on a regular basis by the dentist. 9. If the dental implant demonstrates excellent primary stability from the outset, it may be possible to immediately place an abutment and crown restoration.
While the present invention has been described in connection with a specific application, this application is exemplary in nature and is not intended to be limiting on the possible applications of this invention. It will be understood that modifications and variations may be effected without departing from the spirit and scope of the present invention. It will be appreciated that the present disclosure is intended as an exemplification of the invention and is not intended to limit the invention to the specific embodiments illustrated and described. The disclosure is intended to cover, by the appended claims, all such modifications as fall within the scope of the claims.
Claims (8)
"The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:"
1. An implant system comprising of two separate modules milled that can be screwed.together during the procedure of implant placement such that the male component of the vertical module screws into the female receptacle of horizontal implant component.
2. The implant system in claim 1 can be made from various biocompatible materials including titanium and oxides and available in various sizes and shapes.
3. The vertical component in claim 1 will have provisions for attaching the abutment that can receive a crown form.
4. The horizontal component in claim 1 will have a directional orientation of the female receptacle.
5. That the implant is a dental implant adapted for implantation in the maxilla or mandible of an edentulous patient for supporting a superstructure - which presents one or more artificial teeth.
6. An implant having can be embedded in the bone tissue and has an outer surface roughness, each section with peaks and troughs circumferentially representing a screw form.
7. The vertical component haying a internally threaded section into which the abutment can be screwed.
8. The platform of vertical component rests on the screwed in female receptacle of the horizontal component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2921453A CA2921453A1 (en) | 2016-02-22 | 2016-02-22 | T-implant/two-piece integrated implant system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2921453A CA2921453A1 (en) | 2016-02-22 | 2016-02-22 | T-implant/two-piece integrated implant system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2921453A1 true CA2921453A1 (en) | 2017-08-22 |
Family
ID=59678049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2921453A Abandoned CA2921453A1 (en) | 2016-02-22 | 2016-02-22 | T-implant/two-piece integrated implant system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2921453A1 (en) |
-
2016
- 2016-02-22 CA CA2921453A patent/CA2921453A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |
Effective date: 20190207 |