摘要:
A drill guide employs multiple layers of materials with different mechanical properties in order to achieve concurrent goals of rigidity, fit and retention. For example, a rigid exterior shell and a soft interior may be used together to securely and precisely fit a drill guide to a surgical site.
摘要:
In certain embodiments, a combination of a thread forming tool and an implant is disclosed. The thread forming tool can have a thread forming section with a helical thread having at least one cutting surface for cutting a thread in bone. The implant can include a bone apposition surface having at least one helical thread for position at least partially in the thread of the bone. A longitudinal cross-sectional shape of at least a portion of the helical thread of the thread forming section in certain embodiments, substantially corresponds to a longitudinal cross-sectional shape of at least a portion of the helical thread of the implant.
摘要:
Implant removal tool (1) which allows removing an implant (5) from a patient's bone (6). The implant removal tool (1) comprises a head (2), to which a torque-providing system is attached, and a threaded body (4) preferably with a decreasing diameter. The threaded body (4) preferably has a thread to the left and is intended to be threaded into the hole (7) of the implant (5). The extraction of the implant (5) is relatively simple to carry out, removing the implant (5) in an almost clean manner and leaving a very small cavity (13) in the patient's bone (6). Therefore, the implant removal tool (1) according to the invention makes the removal of an implant (5) a far less traumatic procedure for the patient.
摘要:
The present invention concerns a device (10) for anchoring a dental prosthesis to at least one at least partially hollow implant (50) fixed to the bone structure (S) of a patient, comprising an anchoring component (20) suited to be anchored to the implant (50). Said anchoring component (20) comprises a translatable element (15) suited to be translated between a first retracted position and a second position opposite the first retracted position; when the translatable element (15) is translated from the first retracted position to the second opposite position, a first end portion (15e) of the translatable element (15) is at least partially inserted into the implant (50), The invention furthermore concerns an anchoring structure (100) for anchoring a dental prosthesis to at least two implants (50), an anchoring kit for anchoring a dental prosthesis to at least one implant (50) and an anchoring system for anchoring a dental prosthesis to the bone structure (S) of a patient.
摘要:
A method of integrating bone and implant material includes drilling a hole in either one of the bone and the implant material through to a junction of the bone and the implant material by applying a laser beam to either one of the bone and the implant material and integrating the bone and the implant material by applying a laser beam to the junction through the hole drilled at the drilling.
摘要:
Disclosed herein is a fortified plastic connector mount having a plastic generally conical nose with a top and bottom, the bottom formed as part of or affixed to the flat top of a body and the top of the nose having a square channel guide with corners. The channel is formed axial and centered in the nose and of a size to accept a tool or shaft. At 90 degree orientation from each other are four pairs of force buttressing ribs “FBR” wherein the FBR have a bottom affixed at said flat top, and the FBR has a support edge affixed to an annular outer wall of the nose. The four pairs of FBR each pair being positioned along one of the four sides of the square channel. In some instances, each FBR further comprises an interior edge and an outer edge and each outer edge is aligned with a corner.
摘要:
A low coherence interferometry probe system for evaluating proximity to a tissue layer, comprising a low coherence light source, an excitation optical fiber to bring the low coherence excitation light near the tissue layer and a collection optical fiber for capturing back-scattered light from the tissue layer. The probe system comprises an interferometry sub-system and a processor for evaluating a distance to the tissue layer. There is also provided a spectral absorption probe system for evaluating proximity to an artery, comprising a light source excitation light having a wavelength adapted for absorption by blood chromophores, an excitation optical fiber and a collection optical fiber. The probe system comprises a light detector and a processor for determining a distance to the artery using the Beer-Lambert law of light absorption with a value for surrounding tissue attenuation coefficient (μeff). A probe system combining low coherence interferometry and spectral absorption is also provided.
摘要:
Root canal abutment devices and methods which facilitate the adjustment or removal of an oral appliance, e.g., a crown or bridge, from a reconfigurable abutment assembly are described. The adjustable abutment assembly may be secured within a pulp chamber of a pre-existing tooth. The abutment assembly has a projecting abutment portion with one or more shape memory alloy sleeves or plates or elements extending along the abutment. Each of the sleeves has a length with at least one curved or arcuate portion. Energy may be applied to the elements such that the arcuate portion flattens to allow for the oral appliance to be placed thereupon while removal of the energy allows the elements to reconfigure into its curved configuration thereby locking the oral appliance to the abutment. Removal of the oral appliance may be effected by reapplication of energy to the elements.
摘要:
Disclosed is a dental implant with a first internal thread and a second internal thread, comprising a fixed part and a connecting part. The fixed part has an external threading region. The connecting part has an opening, and the opening has a first inner wall and a second inner wall set below the first internal wall. The second inner wall has a first internal thread and a second internal thread, and the directions of the first internal thread and the second internal thread are different so as to coordinate with at least one conveying means respectively, to implant or take out the dental implant. The dental implant is easy to operate, and can be combined with the conveying means during clinical operations, and thus contamination of the dental implant after falling off can be avoided.
摘要:
A dental implant site preparation tool (10) includes a shaft (12) and a working end (14). The working end includes a cutting surface (16) that includes cutting features. The working end (14) also includes a substantially smooth tip (18) that may have a convex shape. A method of preparing a dental implant site includes working the tool (10) so as to create a shape that matches that of an implant.