54 results about "Endosseous implants" patented technology

An endosseous implant system is provided having an implant body and an abutment. The implant body has a connection cavity at a top end of the implant body, the connection cavity having an open mouth of non-circular shape. The abutment has a primary cavity and a projection oriented along a longitudinal axis of the abutment, the projection protruding outward away from the primary cavity and forming an anti-rotational junction with the connection cavity of the implant.

The position of intra-osseous implants and abutments to analogs is enabled and enhanced by using the longitudinal axial locked position of a post (12a) of an implant (12) having a locking taper in a bore (10a) of an implant (10) having a generally matching locking taper as a reference to determine the position of a stop surface (14c) on impression posts, abutment analog posts and the like received in the bore of an implant and implant analog. In another embodiment the bore (16) of an implant analog (16) is provided with a shelf (16c) located at a position determined by the axial distance of the locked position of the abutment post to prevent over-seating. Controlled retentive resistance and stability of a post is provided by using flats formed in the bore of an implant analog and by forming rings on a post receivable in the bore of an implant or implant analog. One such ring (18c) is formed with an outer periphery sized and configured to allow bending of the outer peripheral portion in a direction opposite to the direction of insertion in a bore to provide greater retentive resistance than insertion resistance.

Embodiments of systems and methods for planning and/or delivering an oral or facial endosseous implantation in a patient are described. In certain embodiments, systems according to the invention include a processing module; a surface imaging scan and a CT scan which utilizes a locator mouthpiece having a plurality of reference points thereon and can send scanned data to a treatment planning module. A processing module processes the data and the surface data into an output that includes three-dimensional (3-D) representation data indicative of at least one of an oral structure and a facial structure of the patient. In certain embodiments, a system includes a fabrication module that produces a physical model based on the 3-D representation data and indicating a planned location of an endosseous implant. In certain embodiments, a system includes a surgical module that guides implantation of an endosseous implant based on the 3-D representation data. The system may also provide a robotic implantation device which may assist the dental professional in placing the implant into the oral structure of an individual patient.

A bone graft that is made at least partially of synthetic material and is of a suitable shape to fill a recess around the base of an ailing/failing endosseous implant. The bone graft may be pre-manufactured in the suitable shape. The invention also comprises a method of installing either such a bone graft or any other type of filler. The invention also comprises various types of bone graft profiler tools suitable for preparing the recess, and optionally an alignment post to assist in the use of the bone graft profiler tool(s). The dimensions of the bone graft profiler tool(s) and the dimensions of the bone graft and the dimensions of the alignment post may be chosen to have defined geometric relationships with respect to each other, with respect to the dimensions of the existing implant base, and with respect to the extent of bone deterioration at a particular implant site in a particular patient.

The invention relates to a screw, particularly for attaching a superstructure to an intra-osseous implant. The extends along a longitudinal axis and comprises a head and a thread. The head comprises a bearing surface configured to cooperate with a bearing surface of the superstructure to hold the superstructure in position. The thread is configured to engage with a tapping to tighten the bearing surfaces of the superstructure and the screw. Between the bearing surface and the thread, the screw comprises a safety portion. The safety portion comprises a driving shape and a frangible section at the connection between the safety portion and the head of the screw, so that the driving shape remains attached to the thread if the frangible section breaks.

Disclosed is a skull endosseous implant adapted to be implanted in the subject's skull to provide an access channel. A variety of sensor means may be installed in the access channel for monitoring the intracranial status of the subject. The present invention further provides a kit containing the skull endosseous implant.

Disclosed is an apparatus and a method for supporting an intraosseous implant that facilitates and prevents further resorption at an implantation site by reducing parafunctional pressures experienced at the implantation site, transferring and transmitting functional pressures to the implantation site without an increase in size of an intraosseous implant and without osteosynthesis.

A disposable osteogenesis and osseointegration promotion and maintenance device that includes : a dental abutment; a stimulation circuit positioned within a space defined at least partially by the dental abutment; and at least one externally disposed electrode that is spaced apart from a dental implant that is connected to the dental abutment; wherein each electrically disposed electrode is connected to an electrical component selected from a group consisting of a battery and a stimulation circuit

An abutment assembly for dental implants comprising only prefabricated components, which comprises an interface element which is insertable within the interior of an endosseous implant and positionable in abutting relation with the endosseous implant; a coupling element connected to the interface element; an abutment which is engageable with the coupling element and coronally spaced from the interface element, and a screw threadedly engageable with the implant and securable to the abutment, such that one or more dimensions of the coupling element are selectable in accordance with dimensions of an extraction socket associated with the implant, and a disposition of the abutment with respect to the implant is intraorally adjustable.

A gingival attachment device associated with an endosseous implant, which comprises a cervically located component of a dental implant coated on a gingival facing surface thereof with a biocompatible and non-degradable polymeric scaffold, to which epithelial and connective tissue cells of the gingiva are attachable. The polymeric scaffold may be polyvinylpyrronidole mixed with butyl-methylmethacrylate, silk fibroin fibrous protein polymer mixed with chitosan or with derivatives of chitosan, and polyHEMA and may be coated on all gingival facing surfaces of the cervically located component.

The present invention provides a biomedical degradable metal capable of treating rheumatoid arthritis. The biomedical degradable metal is a magnesium alloy and contains magnesium and a second component, wherein the second component is one or a plurality of materials selected from zinc, manganese, selenium, strontium and calcium, the content of the second component is less than or equal to 10 wt%, and the balance is magnesium. According to the present invention, the magnesium alloy has characteristics of good biocompatibility, satisfactory corrosion resistance and no significant cytotoxicity, can be degraded and absorbed in biological body fluids or bloods, has application values in medical fields of endovascular interventional therapy, endosseous implant and the like, and especially releases beneficial elements through in vivo degradation so as to inhibit activation of macrophages and other inflammatory cells, promote osteoblast bone formation, and inhibit osteoclast bone resorption, such that the biomedical degradable metal has the potential effects of rheumatoid arthritis treating and the like.

Endosseous dental implants and abutments for deterring tissue loss, such as loss of buccal bone, at the site of the implant/abutment. An exemplary implant may include longitudinally extending externally threaded and unthreaded regions each extending over only a circumferential portion of the external circumference of the implant. The implant may include an internal passage extending along the shaft having a frusto-conical region extending over only a circumferential portion of the internal passage. An exemplary abutment may include a distal connection end comprising a frusto-conical region thereat extending over only a circumferential portion of the external circumference of the connection end to provide a frusto-conical connection region and non-frusto-conical connection region.