Patent Application
20230414330
The present invention belongs to the field of odontology, more precisely implantology, and comprises a prosthetic component developed to have multiple functions within the conventional or digital workflow to build a temporary or definitive prosthesis for single dental rehabilitation, which can be cemented or screwed on a dental implant. Thus, the component has a geometry that allows it to be used as a (i) conventional closed tray transfer, (ii) conventional open tray transfer, (iii) scanbody and (iv) temporary abutment, mainly aiming at facilitating and optimizing the workflow of implantology's professionals.
As is known to those skilled in the art, the installation of a dental implant to restore the masticatory and aesthetic functions of an edentulous patient involves several steps, ranging from the alveolus perforation to the installation of the permanent prosthesis.
After the implant installation, the professional needs to determine the exact location and precise orientation of the implant installed in the patient's edentulous region bone bed, so that the prosthesis can be made in such a way as to promote a perfect fit and alignment in relation to the adjacent teeth.
There are two methods to guide the preparation of the prosthesis: conventional and digital. The conventional method requires the preparation of a gypsum model (or other appropriate material) of the patient's dental arch. This technique uses an open or closed tray transfer that is coupled to the implant prior to placement of the impression material that, once solidified, will provide an accurate record of the position and alignment of the implant in a negative temporary model that, with the aid of a component analogous to the implant, will allow the production of a positive model identical to the patient's arch. This technique requires said transfer to have predefined characteristics such as, for example, cutouts, protrusions, or constrictions to promote better retention in the impression material.
The digital method involves scanning an image of the patient's dental arch geometry. With the aid of softwares that operate CAD/CAM systems, the files containing the geometry information are read, and create a precise three-dimensional representation of the patient's dental arch that will be used to guide the construction of the temporary or permanent prosthesis. However, capturing this geometry requires the coupling of a digitalization agent (commonly referred to as a scanbody) to the implant (or intermediate component), wherein this scanbody needs to have certain characteristics to enable the scanner to capture the precise geometry of the region—which can be done intraorally or using a gypsum model.
Therefore, to find out the correct implant position and direction, it is necessary to use at least one of the following three different components: scanbody, open tray transfer, and closed tray transfer. Then, to ensure that, in the event of any unforeseen event during this step, the implantologist can immediately use another strategy to complete the procedure, the professional must have all these components in the clinic during the surgery.
In addition, we must bear in mind that in the time frame between collecting the implant position data and concluding the permanent prosthesis production, it is possible to install in the patient's mouth a temporary prosthesis or a prefabricated tooth to be cemented on a temporary abutment, remembering that depending on the position and characteristics of the teeth positioned adjacent to the edentulous region, it is important for said component to be adjustable in height. Therefore, in addition to the three components (scanbody, open tray transfer and closed tray transfer) necessary to capture the data, the professional must also have one more prosthetic component to complete the first installation step. It is important to emphasize that when the digital flow is adopted, the existence of the components used in the software libraries ensures that the designed prosthesis is absolutely precise, which is why the use of prosthetic components with various adjustable heights is so important, since cuts made without precise indications may result in components with non-existent dimensions in these libraries, which may cause problems during installation of the prosthesis.
In the current technique there are some components, such as implant mounters, that also perform other functions. U.S. Pat. No. 8,794,966 describes a mounting component that, after being used to install the implant in the socket, can act as a closed tray transfer and, upon cutting and removing its distal end, can still act as a temporary abutment. Document U.S. Pat. No. 9,833,300 also discloses an implant mounter that additionally acts as a closed tray transfer and, after cutting its distal end, can be used to receive the permanent prosthesis. Also document BR1020133027205 (of the same Assignee as this case) disclosed a component that, in addition to being used as a conventional assembler, can also be used as a transfer or as a prosthetic component by cutting and removing its distal end. However all these components have dual functions, one of them being the installation of the implant; due to that, to use it as a scanbody, tray transfer and base for installation of the temporary prosthesis, the difficulties are practically the same as previously reported, since in some cases the complementary functions are only achieved with the coupling of additional parts, or requiring specific components, such as scanbodies, for example.
A component that does not have a mounter function and operates as a scanbody and temporary abutment was described in document US2018/132977. However, it cannot be directly coupled to the implant and, therefore, requires the prior installation of an additional intermediate component before starting the prosthesis production. In addition, the portion that acts as a temporary abutment does not allow the user to do height adjustments, which can cause limitations to its use. In addition, the professional will still need to provide an open and/or closed tray transfer to complete the procedure.
Similarly, document US2018/0353267 discloses a component with a dual function since it can be used as a scanbody and an open or closed tray transfer. However, in this case the implantologist will still need the temporary abutment to complete the procedure.
Therefore, it is noted that the current technique lacks a multifunctional component that can perform, in a single piece, the functions of scanbody, tray transfer and temporary abutment to make the implantologist workflow become more agile, practical, and economic.
Therefore, this invention aims to provide an effective solution to make the implantologist's procedure more practical and optimized while identifying the correct position of the implant installed in the patient's jaw or maxilla, in order to guide the subsequent preparation of the temporary or permanent prosthesis.
Thus, it is one of the objectives of the invention to provide a multifunctional component that can be installed directly on the implant or on the analog, without requiring the use of intermediate components.
Another objective of this invention is to present a component having an original geometry that can perform the functions of (i) scanbody, (ii) open tray transfer, (iii) closed tray transfer and (iv) be used as a temporary abutment.
The multifunctional component of this invention may also be used in digital workflows that use physical models produced with open or closed tray, in addition to using an intraoral scanner.
One objective of this invention is to provide a multifunctional component that, besides the functions it performs with its original shape, can still perform complementary functions by coupling complementary parts. Therefore, one objective of this invention is to provide a component which, upon the coupling of a positioner cap in its upper interface region, can be used as a closed tray transfer in one of the possible embodiments.
Finally, one of the objectives of this invention is to provide a component whose surface is adequately treated to ensure perfect scanning conditions and, thereby, optimize scanning.
Therefore, this invention relates to a multifunctional prosthetic component for conventional or digital workflow, to install an implant supported dental prosthesis, comprising a component that can be removably attached to an implant or analog, consisting of: a lower region comprising a lower interface geometry which cooperates with the implant interface, wherein said lower interface has, in the bottom portion, an anti-rotational element, and in the upper portion it has a transmucosal region; and an intermediate region comprising an abutment (or a prosthetic element) of a substantially tapered shape supported by a tapered seating region that is attached to the upper end of the transmucosal region, wherein said abutment has a top surface; the multifunctional component being characterized by the fact that an upper region defined by at least one upper interface structure comprising a hole for coupling a screw that cooperates with the implant, wherein the upper interface comprises at least one vertical facet; the joining portion between the intermediate region and the upper region configures a cutting location to separate the upper region from the abutment. Said multifunctional component can be used as a conventional closed tray transfer, a conventional open tray transfer, a scanbody and a temporary abutment.
Said abutment comprises: a body of a substantially tapered shape supported by the tapered seating region; at least one top surface; at least one perimeter groove and at least one substantially vertical facet, and the upper interface structure comprises at least one neck linked to the top surface, wherein said neck supports at least one substantially trapezoidal body which supports a substantially cylindrical body with flat top surface. The upper interface may further comprise at least one groove on its median horizontal axis.
At least one vertical facet of the upper interface is vertically aligned with the facet of the abutment, and additionally the vertical facets of said multifunctional component upper interface can be rotationally indexed with the anti-rotational element along the longitudinal axis of the multifunctional component. Furthermore, at least one perimeter groove of the abutment configures a cut-off marking to adjust the height of the prosthetic component; and the lower interface geometry comprises one of the following interfaces: morse cone, external hexagon, or internal hexagon.
The intermediate region and the upper region of the multifunctional component comprise a surface treated with a material that enables scanning with intraoral or benchtop scanning equipment. In addition, the intermediate region and the upper region of the multifunctional component have a microscopically modified surface to enable geometric recognition when using intraoral or benchtop scanning equipment; the facets of the abutment are vertical from the top to its medial portion, wherein in the lower portion, from medial portion of the abutment, such facets begin to be softly concave until they reach the tapered seating region, wherein at least one facet of the abutment is indexed to at least one face of the anti-rotational element of the lower region. Alternatively, the upper portion of the abutment can present a smaller cross-section than the cross-section of the region located below the perimeter groove.
The invention further comprises a positioner cap comprising, on its inner wall, at least one perimeter shoulder that cooperates with the groove of the upper interface of the multifunctional component, when using a closed tray impression technique, wherein the perimeter shoulder of the positioner cap cooperates with the groove of the upper interface by one of the following means: interference, pressure, or male-female coupling.
The multifunctional prosthetic component also comprises a long screw for attaching the multifunctional component to the implant when using an open tray impression technique.
Another possible embodiment of the multifunctional prosthetic component of this invention comprises a component that can be removably attached to an implant or analog, comprising: a lower region comprising a lower interface geometry cooperating with the implant interface, wherein the bottom of said lower interface is linked to an anti-rotational element and the top of said lower interface is linked to a transmucosal region; an intermediate region comprising an abutment supported by a tapered seating region which is attached to the upper end of the transmucosal region, wherein said abutment has a top surface and comprises at least one substantially vertical facet; and a screw, the component being characterized in that it comprises: an upper region defined by at least one upper interface structure comprising at least one groove, and a hole for coupling a screw that cooperates with the implant, the upper interface comprising at least one vertical facet, and a positioner cap attached to the upper surface of the interface by means of breakable structures, wherein said positioner cap has on its inner wall at least one perimeter shoulder that cooperates with the groove of the upper interface of the multifunctional component when the multifunctional component is pressed against the positioner cap and the breakable structures break, allowing the component to move until the positioner cap is properly coupled to the upper interface; wherein the union portion between the intermediate region and the upper region configures a cutting location to separate the upper region from the abutment.
The invention also addresses some installation methods, the first of which is a method of installing an immediate loading prosthesis through the conventional open tray workflow using the multifunctional prosthetic component described herein, comprising the following steps: (100) install the implant in the surgical alveolus; (105) attach the component to the implant using the long screw; (110) create an impression of the patient's arch using an open tray filled with a dental impression composition; (115) after the appropriate waiting period, remove the long screw; (120) remove the tray containing the multifunctional component (1, 10) from inside the patients' mouth; (125) optional step: install a healing abutment or cover screw on the implant while the temporary prosthesis is being produced; (130) start of the prosthetic procedure: attach an analog to the multifunctional component and cast the gypsum to prepare the model of the patient's dental arch; (135) after the waiting period, remove the gypsum model containing the analog from inside the impression mold, the multifunctional component (1, 10) remaining attached to the impression (gypsum model); (140) remove the component from the impression mold; (145) with the aid of an appropriate dental tool, cut the top surface of the multifunctional component to make the prosthetic component has a height of 6 mm, or make said cut in the groove to make the component has a height of 4 mm; (150) make and attach the temporary prosthesis on the multifunctional component already shaped as a temporary abutment, being this the end of the prosthetic procedure; (155) only if step (125) was performed: remove the healing abutment or cover screw from the implant; (160) by cementing or screwing, attach the multifunctional component acting as a temporary abutment to the implant.
Another method is the immediate loading prosthesis installation through the conventional closed tray workflow comprising the steps as follows: (100) install the implant in the surgical alveolus; (205) attach the component to the implant using the screw; (210) couple the positioner cap to the component; (215) create the impression using a closed tray; (220) remove, from inside the patient's mouth, the tray containing the positioner cap; (225) remove the screw and the component from the implant; (230) optional step: install a healing abutment or cover screw on the implant while the temporary prosthesis is being produced; (235) start of the prosthetic procedure: attach an analog to the multifunctional component; (240) couple the ‘component+analog’ set to the positioner cap located is inside the model, and cast the gypsum; (245) remove the gypsum model from inside the mold; (250) uncouple the component from the analog that was attached to the model; (255) with the aid of an appropriate dental tool, cut the top surface of the multifunctional component to make the prosthetic component has a height of 6 mm, or make said cut in the groove to make said component has a height of 4 mm; (260) make and/or attach the temporary prosthesis to the multifunctional component already shaped as a temporary abutment, being this the end of the prosthetic procedure; (265) only if step (230) was performed: remove the healing abutment or cover screw from the implant; (270) by cementing or screwing, attach the multifunctional component acting as a temporary abutment in the implant.
There is also the method of installing the through the fast workflow, characterized by the fact that it comprises the following steps: (100) install the implant in the surgical alveolus; (305) with the aid of an appropriate dental tool, cut the top surface of the multifunctional component until the prosthetic component has a height of 6 mm, or make said cut in the groove until said component has a height of 4 mm; (310) make and/or attach a temporary prosthesis to the multifunctional component already shaped as a temporary abutment; (315) by cementing or screwing, attach the multifunctional component acting as a temporary abutment on the implant.
There is also the method of installing the immediate loading prosthesis through the digital workflow using an intraoral scanner, characterized by the fact that it comprises the following steps: (100) install the implant in the surgical alveolus; (405) Attach the component to the implant using the screw; (410) scan the patient's dental arch using an intraoral scanner; (415) remove the screw and the component from the implant; (420) optional step: install a healing abutment or cover screw over the implant while the temporary prosthesis is being produced; (425) start of the prosthetic procedure: make the digital design of the temporary prosthesis using a computer and an appropriate software; (430) produce the temporary prosthesis on a milling machine or 3D printer; (435) with the aid of an appropriate dental tool, cut the top surface of the multifunctional component until the prosthetic component has a height of 6 mm, or make said cut in the groove until said component has a height of 4 mm; (440) attach the temporary prosthesis on the component already shaped as a temporary abutment, being this the end of the prosthetic procedure; (445) only if step (420) was performed: remove the healing abutment or cover screw from the implant; (450) by cementing or screwing, attach the multifunctional component acting as a temporary abutment on the implant.
The method of installing an immediate loading prosthesis through the digital workflow using open tray and a benchtop scanner is characterized in that it comprises the following steps: (100) install the implant in the surgical alveolus; (505) attach the component to the implant using the long screw; (510) create a impression using an open tray; (515) remove the long screw; (520) remove the tray containing the component from inside the patient's mouth; (525) optional step: install a healing abutment or cover screw on the implant while the temporary prosthesis is being made; (530) start of the prosthetic procedure: attach an analog to the component and cast the gypsum in the mold; (535) remove the gypsum model containing the analog from inside the mold in which the component remains attached; (540) remove the component from the impression; (545) couple the component to the analog to act as a scanbody, and scan the model using a benchtop scanner; (550) create the digital temporary prosthesis using a computer and an appropriate software; (555) produce the temporary prosthesis on a milling machine or 3D printer; (560) with the aid of an appropriate dental tool, cut the top surface of the multifunctional component to make the prosthetic component have a height of 6 mm, or make said cut in the groove to make said temporary component have a height of 4 mm; (565) attach the temporary prosthesis to the component already shaped as a prosthetic component, being this the end of the prosthetic procedure; (570) only if step (525) was performed: remove the healing abutment or cover screw from the implant; (575) by cementing or screwing, attach the multifunctional component acting as a temporary abutment on the implant.
Another possibility is the immediate loading prosthesis installation method through the digital workflow using a closed tray technique and a benchtop scanner, characterized in that it comprises the following steps: (100) install the implant in the surgical socket; (605) attach the component to the implant using the screw; (610) couple the positioner cap to the component; (615) create the impression using a closed tray; (620) remove, from inside the patient's mouth, the tray containing the positioner cap; (625) remove the screw and the component from the implant; (630) optional step: install a healing abutment or cover screw on the implant while the temporary prosthesis is being made; (635) start of the prosthetic procedure: attach an analog to the component; (640) Couple the ‘component+analog’ set to the positioner cap that is inside the model, and cast the gypsum; (645) remove the gypsum model from inside the impression mold; (650) scan the model having the component acting as a scanbody, using a benchtop scanner; (655) uncouple the component from the analog that was attached to the model; (660) create the digital temporary prosthesis using a computer and an appropriate software; (665) produce the temporary prosthesis on a milling machine or 3D printer; (670) with the aid of an appropriate dental tool, cut the top surface of the multifunctional component until the prosthetic component has a height of 6 mm, or make said cut in the groove to make said component have a height of 4 mm; (675) attach the temporary prosthesis to the component already shaped as a prosthetic component, being this the end of the prosthetic procedure; (680) only if step (630) has been performed: remove the healing abutment or cover screw from the implant; (685) by cementing or screwing, attach the multifunctional component acting as a temporary abutment on the implant.
The installation method using the conventional open tray workflow and the multifunctional prosthetic component is characterized in that it comprises the following steps: (700) install the implant in the surgical alveolus for the two-steps procedure, and then install a healing abutment or cover screw on the implant to wait until the appropriate osseointegration period has elapsed; (705) at the end of the osseointegration period, remove the healing abutment or cover screw from the implant; (710) attach the component to the implant using the long screw; (715) create an open tray impression; (720) remove the long screw; (725) remove the tray containing the component from inside the patient's mouth; (730) optional step: reinstall the healing abutment or cover screw on the implant until the permanent prosthesis has been made; (735) start of the prosthetic procedure: attach an analog to the component and cast the gypsum; (740) remove the gypsum model containing the analog from inside the mold, in which the component remains attached; (745) remove the component from the impression mold; (750) select the most appropriate prosthetic component for the case; (755) produce and attach the permanent prosthesis on the chosen prosthetic component, being this the end of the prosthetic procedure; (760) only if step (730) was performed: remove the healing abutment or cover screw from the implant; (765) by cementing or screwing, attach the component containing the permanent prosthesis to the implant.
The two-step prosthesis installation method using the conventional closed tray workflow is characterized in that it comprises the following steps: (700) install the implant in the surgical alveolus for the two-steps procedure, and then install a healing abutment or cover screw on the implant to wait until the appropriate osseointegration period has elapsed; (805) at the end of the osseointegration period, remove the healing abutment or cover screw from the implant; (810) attach the component to the implant using the screw; (815) couple the positioner cap to the component; (820) create the impression using a closed tray; (825) remove, from inside the patient's mouth, the tray containing the positioner cap; (830) remove the screw and the component from the implant; (835) optional step: reinstall the healing abutment or cover screw on the implant until the permanent prosthesis has been produced; (840) start of the prosthetic procedure: attach an analog to the component; (845) couple the ‘component+analog’ set to the positioner cap that is inside the impression mold and cast the gypsum; (850) remove the gypsum model from inside the impression mold; (855) uncouple the component from the analog that was attached to the model; (860) select the most appropriate prosthetic component for the case; (865) produce and attach the permanent prosthesis to the prosthetic component, being this the end of the prosthetic procedure; (870) only if step (835) was performed: remove the healing abutment or cover screw from the implant; (875) by cementing or screwing, attach the component containing the permanent prosthesis in the implant.
The two-step prosthesis installation method through the digital workflow using a benchtop scanner and the multifunctional prosthetic component is characterized in that it comprises the following steps: (700) install the implant in the surgical alveolus for the two-step procedure, and then install a healing abutment or cover screw on the implant to wait until the appropriate osseointegration period has elapsed; (1000) at the end of the osseointegration period, remove the healing abutment or cover screw from the implant; (1005) attach the component to the implant using the long screw; (1010) create the open tray impression; (1015) remove the long screw; (1020) remove the tray containing the component from inside the patient's mouth; (1025) optional step: reinstall the healing abutment or cover screw over the implant until the permanent prosthesis has been produced; (1030) start of the prosthetic procedure: attach an analog to the component and cast the gypsum; (1035) remove the gypsum model containing the analog from inside the mold, in which the component remains attached; (1040) remove the component from the impression mold; (1045) couple the component to the analog to act as a scanbody, and scan the model using a benchtop scanner; (1050) create the digital permanent prosthesis using a computer and an appropriate software; (1055) produce the permanent prosthesis on a milling machine or 3D printer; (1060) select the most appropriate prosthetic component for the case; (1065) attach the permanent prosthesis to the selected prosthetic component, being this the end of the prosthetic procedure; (1070) only if step (1025) was performed: remove the healing abutment or cover screw from the implant; (1075) by cementing or screwing, attach the component containing the permanent prosthesis to the implant.
Finally, there is the two-step prosthesis installation method through the digital workflow using a closed tray benchtop scanner, comprising the following steps: (700) install the implant in the surgical alveolus for the two-step procedure, and then install a healing abutment or cover screw on the implant to wait until the appropriate osseointegration period has elapsed; (1100) at the end of the osseointegration period, remove the healing abutment or cover screw from the implant; (1105) attach the component to the implant using the screw; (1110) couple the positioner cap to the component; (1115) create the closed tray impression; (1120) remove, from inside the patient's mouth, the tray containing the attached positioner cap; (1125) remove the screw and the component from the implant; (1130) optional step: install a healing abutment or cover screw on the implant, until the permanent prosthesis has been produced; (1135) start of the prosthetic procedure: attach an analog to the component; (1140) couple the ‘component+analog’ set to the positioner cap that is inside the impression mold, and cast the gypsum; (1145) remove the gypsum model containing the analog from inside the impression mold, in which the component remains coupled; (1150) scan the model, which has the component acting as a scanbody, using a benchtop scanner; (1155) uncouple the component from the analog that was attached to the model; (1160) Create a digital permanent prosthesis using a computer and an appropriate software; (1165) produce the permanent prosthesis on a milling machine or 3D printer; (1170) select the appropriate prosthetic component for the case; (1175) attach the permanent prosthesis to the selected prosthetic component, being that the end of the prosthetic procedure; (1180) only if step (1130) was performed: remove the healing abutment or cover screw from the implant; (1185) by cementing or screwing, attach the component containing the permanent prosthesis on the implant.
Below this invention will be described in more detail, based on a preferred example embodiment represented in the appended figures, in which:
The object of this invention will be described and explained in more detail based on the accompanying drawings, which have a merely exemplary and non-limiting nature, since adaptations and modifications can be made without changing the scope of the claimed protection.
In a preferred embodiment, the multifunctional prosthetic component for conventional or digital workflow object of this invention basically comprises a component 1 that can be removably attached to an implant I or analog (not shown), and is preferably indicated to act as a (i) conventional closed or open tray transfer, to transfer the implant position and orientation to the gypsum model; (ii) scanbody, to be used in the mouth or mounted on the gypsum model to transfer the implant position and orientation through an intraoral or benchtop scanner, in order to create a digital model; and (iii) single (and preferably temporary) prosthetic component, which can also be used for permanent restorations screwed or cemented on implants installed in the patient's maxilla or jaw. Said component 1 comprises a single body consisting of three main regions: a lower region 2, an intermediate region 3 and an upper region 4, as illustrated in
The lower region 2 comprises the lower interface geometry 22 that cooperates with implant I, having its bottom attached to an anti-rotational element 21, and its top attached to a transmucosal region 23, i.e., positioned outside the coronal region of the implant I (see
In the first preferred embodiment of the invention, which is depicted in
The intermediate region 3 comprises the cementable portion of component 1, corresponding to the temporary abutment 31 to be used during the period prior to the installation of the permanent prosthesis, and which preferably has a conical seat 32 to facilitate the adaptation of the temporary prosthesis, in addition to being attached to the upper end of the transmucosal region 23. In
To use the multifunctional component 1 as a temporary abutment 31, it is initially necessary for the implantologist to cut the component 1 in the neck region 42, i.e., above the top surface 33. Once this is done, the cementable portion (comprising the region between the lower end of the conical seat 32 and the top 33; see
In the upper region 4 of component 1, over the top surface 33, there is a cylindrical neck 42 that supports a trapezoidal shaped structure 43 over which an upper interface 41 defined by a substantially cylindrical body provided with a recess or groove 44 on its median horizontal axis is positioned. The upper interface 41 extends until a flat surface 45 in which it is possible to see the coupling hole O for the fixing screw 5 or 51 and, moreover, has vertical facets 46 in the front and rear parts, which are rotationally indexed with the anti-rotational element 21 along the longitudinal axis of component 1.
It is important to clarify that the geometries of the temporary abutment 31, the neck 42 and the upper interface 41 were designed to enable the accurate scanning of component 1 installed in the mouth or on a patient's dental arch model (i.e., for the geometry scanning using an intraoral or benchtop scanner). To this end, in the region located above the transmucosal portion 23 such elements receive a specific surface treatment that optimizes the scanning process and makes it possible to precisely obtain the position and orientation of implant I in the three-dimensional representation of the computer manipulable dental arch. Thus, and as illustrated in
It should also be clarified that, as illustrated in
However, there are surgical procedures that, instead of using the scanning system, require the manufacture of conventional physical models of the patient's dental arch, which are usually made of gypsum or other materials of similar physical properties. In these cases, before casting the gypsum, a “negative” representation of the dental arches must be collected and that is done by using trays filled with a dental putty that is compressed against the patient's teeth. As a result, for the component 1 to be used as an open or closed tray transfer to reflect the correct and precise position of the previously installed implant in the models, some adaptations that will be presented below must be made.
The use of the multifunctional component as an open tray transfer requires a screw longer than conventional, to remain with one end external and accessible after the tray is filled with the material that, after taking the arch impression, will conform the patient's dental arch model. To this end, and as illustrated in
On the other hand, using the closed tray technique to create the dental impression model requires the coupling of an additional element to component 1: a positioner cap 6, 7 as shown in
The positioner cap 6 is already widely known in implantology and, in the invention presented herein, it can optionally be used by the implantologist, according to his/her preference or surgical need. As shown in
Another embodiment of this invention is illustrated in
It is important to note that the tightening of the component 1 promoted by the neck 42 that supports the upper interference element 41 was thus shaped to promote better retention of the impression material when using the part as an open or closed tray transfer that accurately shows the position and direction of the implant to the gypsum model, and also to facilitate the process of removing the geometry 41 when using the component 1 as a temporary abutment.
In short, the multifunctional prosthetic component 1 according to the preferred embodiment illustrated in
I. Use of the Multifunctional Component 1 in Immediate Loading Dental Prosthesis Installation Techniques Using a Temporary Abutment and a Temporary Prosthesis
The installation of an immediate loading prosthesis using a temporary component and a temporary prosthesis during the osseointegration period, can be done by six distinct methods, the steps of which will be presented below.
1. The immediate loading prosthesis installation method using the conventional workflow with open tray (as illustrated in
2. The immediate loading prosthesis installation method using the conventional workflow with a closed tray (as illustrated in
3. The immediate loading prosthesis installation method using the quick workflow (as illustrated in
4. The immediate loading prosthesis installation method through the digital workflow using an intraoral scanner (as illustrated in
5. The immediate loading prosthesis installation method through the digital workflow using an open tray and a benchtop scanner (as illustrated in
6. The immediate loading prosthesis installation method through the digital workflow using a closed tray benchtop scanner (as illustrated in
II. Two-Step Dental Prosthesis Installation
The two-step installation needs that, in the first step, the newly installed implant is closed with a cover screw or healing abutment and only in the second step, after the osseointegration period, the permanent prosthesis shall be made and prepared. This is a process that can be done in five different manners, the steps of which will be presented below.
1. The two-step prosthesis installation method through the conventional workflow using an open tray (as illustrated in
2. The two-step prosthesis installation method through the conventional workflow with a closed tray (as illustrated in
3. The two-step prosthesis installation method through the digital workflow using an intraoral scanner (as illustrated in
4. The two-step prosthesis installation method through the digital workflow using a benchtop scanner with an open tray (as illustrated in
5. The two steps prosthesis installation method through the digital workflow using a benchtop scanner with a closed tray (as illustrated in
The multifunctional prosthetic component disclosed herein may also present constructive variations in its portion 3, and may present more appropriate geometries for permanent prostheses, without deviating from the protection scope required herein. For example, possible embodiments may present helical channels along part of region 3, and/or a geometry capable of being indexed with hexagon 21 with respect to the component longitudinal axis, with anti-rotational locking function for the prosthesis/crown. It should also be clarified that the multifunctional component can be made of any type of appropriate material (such as, for example, titanium, zirconia or PEEK) or combinations of materials, and be used to install temporary or permanent prostheses.
Having described a preferred embodiment example, it should be understood that the scope of this invention covers other possible variations, and is only limited by the content of the appended claims, including possible equivalents thereof.
| Number | Date | Country | Kind |
|---|---|---|---|
| BR1020200205994 | Oct 2020 | BR | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/BR2021/050411 | 9/27/2021 | WO |
