摘要:
Described are a device, system, and method for bioelectric stimulation to accelerate bone integration of an implant and/or bone graft in order to aid healing. Specifically described are devices and methods for enhancing bone integration of a body implant (e.g., a dental implant) or bone graft by modulating (e.g., stimulating) the controlled expression and/or release of selected proteins, which proteins promote osteogenesis and osseointegration via specific bioelectric signals delivered via, e.g., a specialized mouthpiece, electrodes, and/or wireless means. The description particularly relates to the acceleration of the healing of dental implants and/or bone grafts via promoting bone osteointegration more quickly with bioelectric stimulation.
摘要:
There is provided in accordance with an exemplary embodiment of the invention a method of osteointegration of an implant into surrounding jaw-bone, the method comprising: applying a magnetic field around an implant, the magnetic field produced around the implant to a jaw-bone depth of up to at least about 7 mm, the magnetic field having a magnetic flux density of about 0.05-0.5 mT at up to at least about 2 mm from a surface of the implant, the magnetic field produced by a coil within the implant. A device adapted for insertion into a jawbone implant and for producing the magnetic field for bone enhancement of surrounding jawbone is also described.
摘要:
A system for increasing organic cell regeneration in a cellular medium includes an electromagnetic (EN) field generating device adapted to produce a constant EM field of less then 1 mT at a radiation frequency of substantially 7.69 Hz, which comprises at least one coil and is adapted to generate the EM field so that the cellular medium is substantially within the generated EM field. A resonance medium is also provided for locating substantially at or adjacent the cellular medium, wherein the resonance medium comprises a composition which is adapted to resonate at the frequency of The EM field generated by the device, wherein the composition is a biologically active composition containing at least a composition comprising crystalline structure minerals.
摘要:
Methods and systems for delivering an active agent into an intraoral structure are disclosed. One embodiment of a method for implementing the subject matter described herein includes generating an electrical signal that includes a first frequency, a second frequency, and a third frequency, and supplying the electrical signal to an embedded circuit contained in an intraoral delivery tray, wherein the embedded circuit includes at least one electrode that includes projections positioned proximally to a surface of an intraoral structure. The method further includes providing the first frequency and the second frequency to the at least one electrode to generate an electrical field that electrically motivates the active agent suspended in a fluid medium contained in the intraoral delivery tray toward the intraoral structure via dielectrophoresis and providing the third frequency to the at least one electrode to increase the uptake of the active agent into intraoral structure via alternating current electroosmosis.
摘要:
Provided is an alveolar bone regenerative unit and an alveolar bone regenerative apparatus capable of regeneration treatment for an alveolar bone by sterilizing a periodontium and activating an osteoblast. The alveolar bone regenerative unit includes an active needle electrode of a metal electrode generating heat by power supply and a handle attached to a base of the active needle electrode. The active needle electrode is 25.0 to 41.0 mm long and 0.08 to 0.47 mm in diameter, on which a strippable coat is formed with silicon resin. Supplying power to the active needle electrode causes heat generation at a high temperature because of the thin diameter. The high temperature and electric energy can kill bacteria around a root, thereby being able to activate an osteoblast and regenerate an alveolar bone.
摘要:
Osteogenesis and osseointegration promotion and maintenance devices for osseous implants include an implant member having a first electrode, an inlaid second electrode positioned on the member so that it is electrically isolated from and substantially flush with the member surface, and an electrical stimulation mechanism preferably located at the member and operative to provide electrical stimulation signals to endosseous tissue surrounding the implant through the first and second electrodes. The first electrode may be the member itself or a second inlaid electrode. The implant is thus electrically functionalized for osteogenesis and osseointgration acceleration. The device is applicable to both non-dental and dental implants. In all embodiments, the use of inlaid electrode(s) enables the general appearance, external surface and mechanical integrity of the implant to be left essentially unchanged.
摘要:
An endosteal implant, and the method for performing the implantation thereof, which promotes rapid and complete securing of the inplant to bone tissue. Soft tissure at a bone site is incised and a bore is drilled in the exposed bone. An implant housing is inserted in the bore. The implant housing is constructed so as to be able to receive a selectively removable electrical power source therewithin. When the power source is received within the housing located in the bore in the bone, and the soft tissue is sealed over the implant housing site, the power source produces an electrical current travelling through the tissue and the bone surrounding the site. Such current promotes cellular adhesion activity thereby substantially reducing the time for securing the implant housing to the bone. Subsequently, the electrical power source may be removed and replaced with a suitable abutment for affixing a desired prosthesis to the implant housing. Alternatively, the power source may be permanently left within the implant housing.
摘要:
A tooth prothesis located in a mandible tooth socket having a root supporting a crown. The root has a cone-shaped head located in a recess in the bottom of the crown and a stem extended into the socket. An elastic body of ethylene vinyl acetate (EVA) copolymer surrounds and is bonded to the stem. The outer surface of the elastic body is bonded to the inside surface of a porous fabric which permits bone ingrowth to anchor the prothesis to the mandible. The fabric has a Pyrolite carbon outer skin. The upper edge of the fabric is spaced from the crown and head whereby the elastic body allows limited movement of the crown relative to the fabric. A plurality of bands of silver surround the body adjacent the lower edge of the crown. Ionic silver is released from the bands, which provides anti-bacterial action. In one form, a silver wire contained in the root and connected to a band and a source of direct current releases ionic silver into the surrounding tissue. In another form, the root, crown, and body have passages for accommodating drug materials and silver compounds.
摘要:
A long-term endoprosthesis in which a relatively large part of the surface, which in the implanted condition makes contact with the bone of the wearer of the implant, is provided with electrodes. These electrodes are connected with a source of a low frequency electrical voltage and are so arranged that they alternate with relatively short spacings in the contact zone. The electrode spacing preferably decreases in size in accordance with the size of the mechanical area loading on the corresponding part of the contact area, that is to say, the greater the loading, the smaller the spacing.
摘要:
A treatment element for use with a dental-implant part anchored in a patient's jawbone is disclosed, wherein the treatment element includes a base body having a connection system adapted to the dental-implant part for mechanical connection of the base body with the dental-implant part, and at least one media duct for conducting a cleaning liquid.