Placing dental implants is an increasingly important service which can significantly improve a patient's health and overall quality of life. It is important that surrounding soft tissue and bone osseointegrate with an implant. Recently, it has been discovered that certain methods of treating the surface of implants (e.g., titanium, zirconium) with UVC (Ultraviolet C) light or Non-Thermal Plasma (“NTP”) before they are initially implanted improves hydrophilic properties of the implants. This results in fluids and proteins from surrounding cells being drawn to the surface of the implant to form a more secure bond. Current methods of treating implants with UVC light are limited to placing new implants in sealed containers which include UVC lamps and then exposing the implants to intense UVC light from 10 seconds to 15 minutes or more. However, there is currently no apparatus or method for in-situ treatment of the exposed surfaces of embedded implants which have partially or completely failed to bond to surrounding tissue.
Patients that develop peri-mucositis and peri-implantitis over time due to infection, an adverse body reaction to dental materials, and/or bone loss at the implant site require revision surgery. In these cases, degeneration of the bone leaves little to nothing for the implant screws to hold on to, so they are in effect “free floating” at the implant site. While these free-floating implants can be easily removed, removal is undesirable for implants that are still at least partially attached to bone. In the current state of the art, there is only about a 50% success rate in achieving the same hydrophilic bond with new tissue and graft material on implants as is seen in new implants. These unsuccessful cases become refractory, meaning after an implant repair procedure, many cases relapse.
Therefore, there is a need for a method and apparatus that significantly improve the success rates for revision surgery implants.
In some embodiments, the disclosure is directed to an apparatus and method for treating implants embedded in a patient's mouth. In some embodiments, the method includes one or more of the following steps: (1) cleaning the area by removing granulation tissue and/or pathologic tissue from the defect area; (2) preparing the area for graft material; (3) removing remaining bioburden and/or treat the exposed implant surfaces with directed laser energy (e.g., from an Er, Cr:YSGG 2790 nm Laser, a 9300 or 10.600 nm CO2 laser, a 1064 nm Nd:YAG or NIR diode laser; or an Er:YAG 2940 nm laser); (4) applying a UVC treatment to the exposed implant surfaces using an instrument; (5) applying a graft material to rebuild the peri-implantitis affected area; and (6) applying a collagen barrier, which secures the implant at the same location for healing and restoration.
In some embodiments, the disclosure is also directed to an ultraviolet (UV) instrument configured and arranged to deliver ultraviolet light such as UVC light at 100-400 nm to the exposed implant surfaces. While the specific wavelength UVC is used in connection with some embodiments throughout this disclosure, it is understood that any disclosure of a method and/or apparatus that uses UVC (e.g., the 100-280 nm portion of the UV spectrum) is also a disclosure of a method and/or apparatus that uses of ultraviolet light in a wavelength of 100-400 nm, or an apparatus that emits plasma from one or more tip openings. In some embodiments, the disclosure is also directed to a UVC instrument configured and arranged to deliver UVC light at 253.7 nm to the exposed implant surfaces. In some embodiments, the disclosure is directed to an NTP instrument configured and arranged to deliver a plasma photofunctionalization process to the exposed implant surfaces. In some embodiments, the photofunctionalization process includes emitting hot or cold plasma energy from a tip opening of the instrument.
In some embodiments, the UVC instrument comprises one or more fluid tubes. In some embodiments, at least one of the one or more fluid tubes is a fluid delivery tube configured and arranged to deliver a fluid to or adjacent the implant site. In some embodiments, the fluid includes water. In some embodiments, the fluid includes an acid etch. In some embodiments, the fluid includes hydrogen peroxide. In some embodiments, the fluid is a gas. In some embodiments, the fluid is air.
In some embodiments, at least one of the one or more fluid tubes are fluid cooling tubes configured to remove heat from the UVC instrument. In some embodiments, the one or more fluid tubes are configured and arranged to circulate or move cooling fluid into and out of a UVC tip comprising at least a portion of a UVC delivery system. In some embodiments, at least a portion of the UVC instrument adjacent to the UVC tip is a neck or other structure that is flexible and/or adjustable. In some embodiments, the neck can bend up to 180° relative to the handpiece such that UVC light can be directed onto an implant surface facing the posterior portions of the oral cavity while the instrument handpiece extends outside the patient's mouth.
In some embodiments, the UVC instrument includes one or more UVC tips. In some embodiments, the one or more UVC tips are removable. In some embodiments, at least a portion of the one or more UVC tips includes a light opening configured and arranged to allow UVC light to pass therethrough. In some embodiments, the opening is at a distal end of the UVC tip and is positioned to where a plane parallel to the opening at the surface and parallel to the distal surface would be substantially perpendicular to a plane bisecting a central axis of the handpiece and/or the neck, such that the UVC light is directed from the distal end onto the implant surface. In some embodiments, the light opening is located on a side of the one or more UVC tips adjacent to the distal end of the tip to where a plane tangent and/or parallel to the opening and orthogonal to the distal end positioned along a side surface of the tip would be parallel to a plane bisecting a central axis of the handpiece and/or the neck, such that the UVC light is directed from a side surface of the tip onto the implant surface. In some embodiments, at least a portion of the one or more UVC tips that include a UVC opening on the side is rotatable such that the UVC light can be directed at any angle from 0° to 360°.
In some embodiments, the next step in the method is to clean and disinfect the surface of the implant.
While the implant surface may be visually clean, at the atomic level, the aged titanium is still contaminated and in a hydrophobic state. It has been found that even a treatment with an ablative laser is not sufficient to remove enough of the contaminants to return the implant surface to a hydrophilic state. In some embodiments, the next step to clean the implant surface 902 and prepare it for graft material is to acid etch the exposed implant surface to remove bacterial endotoxins.
In some embodiments, a subsequent step is to remove any residual acid from the implant site by flooding it with hydrogen peroxide (H2O2) which also removes any remaining bioburden. Although these steps contemplate a best mode, other methods can be employed to satisfy a step of cleaning and preparing the area for a treatment using UVC light with a wavelength of approximately 254 nm according to some embodiments. Some embodiments apply UVC in the range of plus or minus five nm from the 254 nm application. Some embodiments described herein include the all or part of the UVC wavelength range of (100-280 nm) and, in some embodiments, also includes the use of UVA both independently and/or in conjunction with each other.
In some embodiments, after the cleaning step, a UVC treatment at 253.7 nm (as used herein, a references to 254 nm and 253.7 nm are interchangeable for the purposes of defining the metes and bounds of the claims) is applied to exposed implant surfaces. In some embodiments, a method of applying the UVC treatment includes a step applying the UVC to the implant as not to exceed an implant surface temperature of 40° C. In some embodiments, the system is configured to modulate the power of the UVC source to prevent an implant from reaching a temperature over 40° C.
In some embodiments, the light is emitted from a side light opening 1205. In some embodiments, the tip 1204 is configured to rotate about its longitudinal axis 1213 where it connects to the flexible neck 1202. In some embodiments, the flexible neck 1202 is configured to rotate about a longitudinal axis of the handpiece base 1201, wherein the tip 1204 is configured to rotate with the flexible neck 1202. In some embodiments, the tip 1204 is removable from the flexible neck 1202 and/or handpiece base 1201. In some embodiments, the flexible neck 1202 and/or handpiece base 1201 is configured to enable multiple different types of tips, such as tip 1206. In some embodiments, the tip 1206 comprises a distal opening 1207 configured to enable light from UVC light 1208 to shine therethrough.
In some embodiments, the mercury arc lamp system 1340 includes a reflector 1343 configured to reflect light from a mercury arc lamp 1341 into a lensing system (e.g., one or more collimators) 1342 which then focuses the UVC light into the fiber optic cable 1331. In some embodiments, the fiber optic cable 1331 is configured to transmit the UVC light to the fiber assembly 1330 which is configured to direct the UVC light out of the side firing tip 1311, 1321 (or end firing tip) when the fiber assembly 1330 is inserted into one or more handpieces described herein.
In some embodiments, the single UVC LED system 1350 comprises a single UVC LED 1351. In some embodiments, the single UVC LED system 1350 is configured to direct UVC light emitted from the single UVC LED 1351 into the lensing system 1352 which focuses the light into the fiber assembly 1330 which then directs the UVC light out the side firing tip 1311, 1321 (or end firing tip).
In some embodiments, a UVC LED array system 1360 comprises a plurality of UVC LEDs 1361. In some embodiments, the UVC LED array system 1360 is configured to direct UVC light emitted from the UVC LED array 1361 into the lensing system 1362 which focuses the light into the fiber assembly 1330 and subsequently out the side firing tip 1311, 1321 (or end firing tip).
In some embodiments, the UVC flash lamp system 1370 comprises a lensing system 1372, one or more filters 1373, one or more UVC flash lamps 1374, and one or more reflectors 1375 configured to direct UVC light into the fiber assembly 1330 and subsequently out the side firing tip 1311, 1321 (or end firing tip).
In some embodiments, a graft material is then selected and applied. An absorbent graft material is preferred, as the harder, more crystalline, less absorbable the graft material will reduce attachment to the conditioned titanium surface according to some embodiments. In some embodiments, xenografts, cortical bone chips, a combination of cortical and cellulose bone grafts have been found to be less effective as the hydroxyapatite (HA) density increases, the more chance of forming a multinucleated giant cell complex occurs which leads to connective tissue formation instead of bone. In some embodiments, cancellous allograt and/or alloplast that fully absorb and release free ionic calcium has given satisfactory results and can be combined with autologous biologics.
In some embodiments, after the graft material is added, the next step is to add a collagen membrane barrier. In some embodiments, in many peri-implantitis cases key walls are missing from the defect site. In some embodiments, when the walls are missing only a barrier (e.g., an absorbable collagen barrier) will help to maintain the integrity of the grafting site. In some embodiments, punches are formed in the membrane (e.g., two in this case) which are configured and arranged to align with the remaining implants. The implants pass through the membrane and the membrane is draped and formed over the bone graft complex. In some embodiments, the absorbable collagen membrane should not be the last layer as it is not bioreactive.
In some embodiments, a subepithelial connective tissue graft (SECT) is used, which often comes from a palatal donor site, or if more tissue is needed, soft tissue such as alloderm. In some embodiments, the final layer is an autologous fibrin membrane in the form of L-PRF (leucocyte containing platelet rich fibrin). In some embodiments, buttonholes (e.g., two small buttonholes) are made in the PRFmembrane, which allow the membrane to stretch over and between the two implant abutments and the membrane is then pushed down to the shoulder of the two abutments. In some embodiments, this allows for good closure without having to worry about getting perfect primary flap closure over the graft material. In some embodiments, a temporary bridge is then placed over the final layer. In some embodiments, a periosteal release can also be used to get good primary closure over the collagen membrane and the PRFmembrane.
In some embodiments, the disclosure is also directed to a UVC instrument configured and arranged to deliver UVC light at 254 nm to the exposed implant surfaces. As used herein, an exposed implant surface is any portion of an implant of any material that is surgically secured within the mouth of a patient, and where at least a portion of the implant is not covered by bone and/or tissue. Some embodiments of the system are directed to a UVC instrument configured and arranged to apply UVC light at 254 nm to a posterior portion of an exposed implant surface, which may be facing the posterior portions of the oral cavity and/or away from the mouth and/or not visible when looking through the mouth.
In some embodiments, the UVC instrument including handpiece 1200 comprises one or more fluid tubes 1209, 1210, 1211, and 1212. In some embodiments, at least one of the one or more fluid tubes 1209-1212 is a fluid delivery tube configured and arranged to deliver a fluid to the implant site. In some embodiments, the fluid includes water. In some embodiments, the fluid includes an acid etch. In some embodiments, the fluid includes hydrogen peroxide. In some embodiments, the fluid is a gas. In some embodiments, the fluid is air. In some embodiments, at least one of the one or more fluid tubes is a liquid delivery tube 1209, 1211. In some embodiments, at least one of the one or more fluid tubes is a gas delivery tube 1210, 1212. In some embodiments, the UVC instrument that includes handpiece 1200 is configured to deliver both a gas and a liquid to the implant site simultaneously. One or more handpiece variations shown in
In some embodiments, at least one of the one or more fluid tubes 1209-1212 are fluid cooling tubes configured to remove heat from the UVC instrument. In some embodiments, the one or more fluid tubes are configured and arranged to circulate cooling fluid into, within, and/or out of a UVC tip. In some embodiments, at least a portion of the UVC instrument adjacent to or comprising the UVC tip is a neck 1202 that is flexible and/or adjustable. In some embodiments, the neck 1202 can bend up to 180° relative to the handpiece such that UVC light can be directed onto an implant surface facing the posterior portions of the oral cavity while the instrument handpiece extends outside the patient's mouth.
In some embodiments, the UVC instrument 1200 includes one or more UVC tips 1204, 1206. In some embodiments, at least a portion of the one or more UVC tips 1204, 1206 include a light opening 1205, 1207 configured and arranged to allow UVC light to pass therethrough. In some embodiments, the light opening 1207 is at distal end of the UVC tip and is substantially perpendicular to the neck. In some embodiments, the light opening 1205 is located on a side of the one or more UVC tips 1204 adjacent and/or perpendicular to a plane along a distal end of the tip 1204 and parallel to a center axis of the handpiece base 1201 and the neck 1202. In some embodiments, at least a portion of the one or more UVC tips 1204 that include a UVC light opening 1205 on the side is rotatable such that the UVC light can be directed when in a patient's mouth at any angle from 0° to 360°. In some embodiments, the system includes an ergonomic handpiece which can be coupled to a wide variety of tips. Some embodiments include a handpiece configured to be coupled to a side firing tip or an end firing tip each configured to provide a light pattern for the methods described herein. In some embodiments, the pattern is configured to keep a temperature of the implant below 40° C. In some embodiments, a distal end fiber assembly is coupled by an optical fiber to a UVC light source. In some embodiments, the UVC light source is modular and readily coupled and decoupled from the fiber. Some embodiments include a light source comprising a UVC single LED, a UVC LED array and/or a mercury arc lamp.
Some embodiments include a controller for the UVC instrument which can comprise any type of computer system. In some embodiments, the controller is configured to prevent the surface of the implant from reaching a temperature greater than 40° C.
In some embodiments, the computer system 1910 can comprise at least one processor 1932. In some embodiments, the at least one processor 1932 can reside in, or coupled to, one or more conventional server platforms (not shown). In some embodiments, the computer system 1910 can include a network interface 1935a and an application interface 1935b coupled to the least one processor 1932 capable of processing at least one operating system 1934. Further, in some embodiments, the interfaces 1935a, 1935b coupled to at least one processor 1932 can be configured to process one or more of the software modules (e.g., such as enterprise applications 1938). In some embodiments, the software application modules 1938 can include server-based software, and can operate to host at least one user account and/or at least one client account, and operate to transfer data between one or more of these accounts using the at least one processor 1932.
With the above embodiments in mind, it is understood that the system can employ various computer-implemented operations involving data stored in computer systems. Moreover, the above-described databases and models described throughout this disclosure can store analytical models and other data on computer-readable storage media within the computer system 1910 and on computer-readable storage media coupled to the computer system 1910 according to various embodiments. In addition, in some embodiments, the above-described applications of the system can be stored on computer-readable storage media within the computer system 1910 and on computer-readable storage media coupled to the computer system 1910. In some embodiments, these operations are those requiring physical manipulation of physical quantities. Usually, though not necessarily, in some embodiments these quantities take the form of one or more of electrical, electromagnetic, magnetic, optical, or magneto-optical signals capable of being stored, transferred, combined, compared and otherwise manipulated. In some embodiments, the computer system 1910 can comprise at least one computer readable medium 1936 coupled to at least one of at least one data source 1937a, at least one data storage 1937b, and/or at least one input/output 1937c. In some embodiments, the computer system 1910 can be embodied as computer readable code on a computer readable medium 1936. In some embodiments, the computer readable medium 1936 can be any data storage that can store data, which can thereafter be read by a computer (such as computer 1940). In some embodiments, the computer readable medium 1936 can be any physical or material medium that can be used to tangibly store the desired information or data or instructions and which can be accessed by a computer 1940 or processor 1932. In some embodiments, the computer readable medium 1936 can include hard drives, network attached storage (NAS), read-only memory, random-access memory, FLASH based memory, CD-ROMs, CD-Rs, CD-RWs, DVDs, magnetic tapes, other optical and non-optical data storage. In some embodiments, various other forms of computer-readable media 1936 can transmit or carry instructions to a remote computer 1940 and/or at least one user 1931, including a router, private or public network, or other transmission or channel, both wired and wireless. In some embodiments, the software application modules 1938 can be configured to send and receive data from a database (e.g., from a computer readable medium 1936 including data sources 1937a and data storage 1937b that can comprise a database), and data can be received by the software application modules 1938 from at least one other source. In some embodiments, at least one of the software application modules 1938 can be configured within the computer system 1910 to output data to at least one user 1931 via at least one graphical user interface rendered on at least one digital display.
In some embodiments, the computer readable medium 1936 can be distributed over a conventional computer network via the network interface 1935a where the system embodied by the computer readable code can be stored and executed in a distributed fashion. For example, in some embodiments, one or more components of the computer system 1910 can be coupled to send and/or receive data through a local area network (“LAN”) 1939a and/or an internet coupled network 1939b (e.g., such as a wireless internet). In some embodiments, the networks 1939a, 1939b can include wide area networks (“WAN”), direct connections (e.g., through a universal serial bus port), or other forms of computer-readable media 1936, or any combination thereof.
In some embodiments, components of the networks 1939a, 1939b can include any number of personal computers 1940 which include for example desktop computers, and/or laptop computers, or any fixed, generally non-mobile internet appliances coupled through the LAN 1939a. For example, some embodiments include one or more of personal computers 1940, databases 1941, and/or servers 1942 coupled through the LAN 1939a that can be configured for any type of user including an administrator. Some embodiments can include one or more personal computers 1940 coupled through network 1939b. In some embodiments, one or more components of the computer system 1910 can be coupled to send or receive data through an internet network (e.g., such as network 1939b). For example, some embodiments include at least one user 1931a, 1931b, is coupled wirelessly and accessing one or more software modules of the system including at least one enterprise application 1938 via an input and output (“I/O”) 1937c. In some embodiments, the computer system 1910 can enable at least one user 1931a, 1931b, to be coupled to access enterprise applications 1938 via an I/O 1937c through LAN 1939a. In some embodiments, the user 1931 can comprise a user 1931a coupled to the computer system 1910 using a desktop computer, and/or laptop computers, or any fixed, generally non-mobile internet appliances coupled through the internet 1939b. In some embodiments, the user can comprise a mobile user 1931b coupled to the computer system 1910. In some embodiments, the user 1931b can connect using any mobile computing 1931c to wireless coupled to the computer system 1910, including, but not limited to, one or more personal digital assistants, at least one cellular phone, at least one mobile phone, at least one smart phone, at least one pager, at least one digital tablets, and/or at least one fixed or mobile internet appliances.
The subject matter described herein are directed to technological improvements to the treatment and prevention of peri-implantitis by in-situ treatment of exposed implant surfaces. The disclosure describes the specifics of how a machine including one or more computers comprising one or more processors and one or more non-transitory computer implement some embodiments of the system and its improvements over the prior art. The instructions executed by the machine cannot be performed in the human mind or derived by a human using a pen and paper but require the machine to convert process input data to useful output data. Moreover, the claims presented herein do not attempt to tie-up a judicial exception with known conventional steps implemented by a general-purpose computer; nor do they attempt to tie-up a judicial exception by simply linking it to a technological field. Indeed, the systems and methods described herein were unknown and/or not present in the public domain at the time of filing, and they provide a technologic improvements advantages not known in the prior art. Furthermore, the system includes unconventional steps that confine the claim to a useful application.
It is understood that the system is not limited in its application to the details of construction and the arrangement of components set forth in the previous description or illustrated in the drawings. The system and methods disclosed herein fall within the scope of numerous embodiments. The previous discussion is presented to enable a person skilled in the art to make and use embodiments of the system. Any portion of the structures and/or principles included in some embodiments can be applied to any and/or all embodiments: it is understood that features from some embodiments presented herein are combinable with other features according to some other embodiments. Thus, some embodiments of the system are not intended to be limited to what is illustrated but are to be accorded the widest scope consistent with all principles and features disclosed herein.
Some embodiments of the system are presented with specific values and/or setpoints. These values and setpoints are not intended to be limiting and are merely examples of a higher configuration versus a lower configuration and are intended as an aid for those of ordinary skill to make and use the system.
Furthermore, acting as Applicant's own lexicographer, Applicant imparts the explicit meaning and/or disavow of claim scope to the following terms:
Applicant defines any use of “and/or” such as, for example, “A and/or B,” or “at least one of A and/or B” to mean element A alone, element B alone, or elements A and B together. In addition, a recitation of “at least one of A, B, and C,” a recitation of “at least one of A, B, or C,” or a recitation of “at least one of A, B, or C, or any combination thereof” are each defined to mean element A alone, element B alone, element C alone, or any combination of elements A, B and C, such as AB, AC, BC, or ABC, for example.
“Substantially” and “approximately” when used in conjunction with a value encompass a difference of 5% or less of the same unit and/or scale of that being measured unless otherwise specified.
“Simultaneously” as used herein includes lag and/or latency times associated with a conventional and/or proprietary computer, such as processors and/or networks described herein attempting to process multiple types of data at the same time. “Simultaneously” also includes the time it takes for digital signals to transfer from one physical location to another, be it over a wireless and/or wired network, and/or within processor circuitry. For recited physical steps, “simultaneously” includes a time difference between steps up to 5 seconds.
As used herein, “can” or “may” or derivations there of (e.g., the system display can show X) are used for descriptive purposes only and is understood to be synonymous and/or interchangeable with “configured to” (e.g., the computer is configured to execute instructions X) when defining the metes and bounds of the system.
In addition, the term “configured to” means that the limitations recited in the specification and/or the claims must be arranged in such a way to perform the recited function: “configured to” excludes structures in the art that are “capable of” being modified to perform the recited function but the disclosures associated with the art have no explicit teachings to do so. For example, a recitation of a “container configured to receive a fluid from structure X at an upper portion and deliver fluid from a lower portion to structure Y” is limited to systems where structure X, structure Y, and the container are all disclosed as arranged to perform the recited function. The recitation “configured to” excludes elements that may be “capable of” performing the recited function simply by virtue of their construction but associated disclosures (or lack thereof) provide no teachings to make such a modification to meet the functional limitations between all structures recited. Another example is “a computer system configured to or programmed to execute a series of instructions X, Y, and Z.” In this example, the instructions must be present on a non-transitory computer readable medium such that the computer system is “configured to” and/or “programmed to” execute the recited instructions: “configure to” and/or “programmed to” excludes art teaching computer systems with non-transitory computer readable media merely “capable of” having the recited instructions stored thereon but have no teachings of the instructions X, Y, and Z programmed and stored thereon. The recitation “configured to” can also be interpreted as synonymous with operatively connected when used in conjunction with physical structures.
The previous detailed description is to be read with reference to the figures, in which like elements in different figures have like reference numerals. The figures, which are not necessarily to scale, depict some embodiments and are not intended to limit the scope of embodiments of the system.
Any of the operations described herein that form part of the invention are useful machine operations. The invention also relates to a device or an apparatus for performing these operations. The apparatus can be specially constructed for the required purpose, such as a special purpose computer. When defined as a special purpose computer, the computer can also perform other processing, program execution or routines that are not part of the special purpose, while still being capable of operating for the special purpose. Alternatively, the operations can be processed by a general-purpose computer selectively activated or configured by one or more computer programs stored in the computer memory, cache, or obtained over a network. When data is obtained over a network the data can be processed by other computers on the network, e.g. a cloud of computing resources.
The embodiments of the invention can also be defined as a machine that transforms data from one state to another state. The data can represent an article, that can be represented as an electronic signal and electronically manipulate data. The transformed data can, in some cases, be visually depicted on a display, representing the physical object that results from the transformation of data. The transformed data can be saved to storage generally, or in particular formats that enable the construction or depiction of a physical and tangible object. In some embodiments, the manipulation can be performed by a processor. In such an example, the processor thus transforms the data from one thing to another. Still further, some embodiments include methods can be processed by one or more machines or processors that can be connected over a network. Each machine can transform data from one state or thing to another, and can also process data, save data to storage, transmit data over a network, display the result, or communicate the result to another machine. Computer-readable storage media, as used herein, refers to physical or tangible storage (as opposed to signals) and includes without limitation volatile and non-volatile, removable and non-removable storage media implemented in any method or technology for the tangible storage of information such as computer-readable instructions, data structures, program modules or other data.
Although method operations are presented in a specific order according to some embodiments, the execution of those steps do not necessarily occur in the order listed unless explicitly specified. Also, other housekeeping operations can be performed in between operations, operations can be adjusted so that they occur at slightly different times, and/or operations can be distributed in a system which allows the occurrence of the processing operations at various intervals associated with the processing, as long as the processing of the overlay operations are performed in the desired way and result in the desired system output.
It will be appreciated by those skilled in the art that while the invention has been described above in connection with particular embodiments and examples, the invention is not necessarily so limited, and that numerous other embodiments, examples, uses, modifications and departures from the embodiments, examples and uses are intended to be encompassed by the claims attached hereto. The entire disclosure of each patent and publication cited herein is incorporated by reference, as if each such patent or publication were individually incorporated by reference herein. Various features and advantages of the invention are set forth in the following claims.
This application claims the benefit and priority of U.S. Provisional Patent Application No. 63/172,486, filed Apr. 8, 2021, entitled “TREATMENT OF PERI-IMPLANTITIS USING ULTRAVIOLET-C LASERS,” which is incorporated herein by reference in its entirety.
Number | Date | Country | |
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63172486 | Apr 2021 | US |