An osteo-implant is provided, having a fixing segment and an implant end. The fixing segment is provided with a thread and at least one bone healing chamber. The bone healing chamber is located at a thread root of the thread. The bone healing chamber is a chamber inwardly depressed from a surface of the fixing segment. The fixing segment has a central axis. In the same section of the fixing segment, an area of a section, which is parallel to and passes through the central axis, of the at least one bone healing chamber closer to the implant end is smaller.

An implant device includes an implant with a threaded portion and a drilling portion and a positioning hole respectively formed at two ends of the implant. Channels are recessedly formed on an outer surface of the implant. Each channel includes pore units joined one another in a row. An interior of each pore unit includes a first area enclosed by a peripheral wall and a second area defined between adjacent surface portions and communicating with the first area. The peripheral wall has first projecting units formed thereon to present a surface with concavities and convexities. Second projecting units extend outwards from adjacent peripheral walls and overlap one another between every two adjacent channels to define each surface portion. Cells derived from a target part are quickly attached to the channels and linked with each other for enhancing the combination between the implant and the target part.

In this invention one or more intermittent turned/smooth/machined/hybrid sub-collar/s (Rezaa Ring/s) feature/s are added. This can be done around any shape, size or type of dental implant. The sub-collars (Reza Rings) can be added at any point or location below the platform of a dental implant. The purpose is to halt or slow down the progression of peri-implantitis. In addition the prognosis of the infected dental implant is improved due to the presence of this added smooth surface; be it either merely due to the presence of this smooth surface or as the result of treatment in the presence of this smooth surface. Its appearance on a radiograph also serves as a demarcation point for both the clinicians and patients alike.

Provided herein is a method for forming a periodic microstructure on a surface of zirconia-based ceramics, which are not easily mechanically workable, without causing thermal adverse effects. A zirconia-based ceramic having a surface periodic microstructure is also provided. A linearly or circularly polarized laser beam is irradiated to a zirconia-based ceramic surface, and periodic irregularities are formed in a spot of the laser beam. Stripe-pattern irregularities parallel to the direction of polarization can be formed in a spot of a laser beam by irradiating a linearly polarized ultrashort pulsed-laser beam to a zirconia-based ceramic surface. A mesh-like raised region and a dot-like recessed region can be periodically formed by irradiating a circularly polarized ultrashort pulsed-laser beam to a ceramic surface.

The invention relates to a dental component, such as an abutment, an abutment replica, an abutment blank, a customized abutment, a scan abutment, a digital transfer coping, an impression pick-up element, a healing cap or a driver, comprises a first indexing element and at least two second indexing elements having apical ends located apically of the apical end of said first indexing element. The invention also relates to a dental implant which comprises a dental component having first and second indexing elements and a fixture having third and fourth indexing elements, wherein the first and third indexing elements can only engage with each other after the second and fourth indexing elements have engaged with each other. The invention also relates to a fixture.

A dental device comprises: a dental implant comprising a core enveloped by an expandable anchor comprising a plurality of joined segments. Prior to insertion of the core into the expandable anchor a carrier apically displaces within the expandable anchor, generating an expansion force causing the plurality of joined segments to be displaced linearly away from the central axis of the implant where the coronal and apical ends of each joined segment are displaced in parallel paths normal to the central axis of the implant. The core inserts into the expandable anchor to lock the plurality of joined segments in their expanded configuration. At least a first rail on the core is received by a corresponding expandable anchor slot to align the core and expandable anchor and at least a first core and expandable locking lodge engage to lock the core into the expandable anchor.

A method of forming an implant to be implanted into living bone is disclosed. The method comprises the act of roughening at least a portion of the implant surface to produce a microscale roughened surface. The method further comprises the act of immersing the microscale roughened surface into a solution containing hydrogen peroxide and a basic solution to produce a nanoscale roughened surface consisting of nanopitting superimposed on the microscale roughened surface. The nanoscale roughened surface has a property that promotes osseointegration.

A body made of a ceramic material based on zirconia, the body having a surface region extending from the surface of the body to a predetermined depth and a core region integrally formed with the surface region. The ceramic material in the surface region includes a crystalline phase A formed by zirconia in tetragonal phase. The ceramic material in the surface region further includes a crystalline phase B, the crystal structure of which including apart from zirconium and oxygen at least one further component X in a periodic arrangement, the crystalline phase B having a lower theoretical density than crystalline phase A.

A process for the preparation of a topography for improved fibrin network formation and cell mineralization on at least a portion of a dental implant made of a binary titanium-zirconium alloy, the portion being destined to be embedded in a patient's jawbone and to be in contact with the jawbone via a bone-contacting surface, the process includes the subsequent steps of a) subjecting the bone-contacting surface of the dental implant to a sandblasting treatment, b) etching the sandblasted bone-contacting surface, and c) treating the sandblasted and etched bone-contacting surface with water or an aqueous solution for a duration of more than two days, during which nanostructures continuously grow on the bone-contacting surface, the nanostructures extending in at least two dimensions to 200 nm at most. The process is characterized in that the treatment of b) is carried out at a temperature from 40 C. to 60 C.

The invention pertains to surface topographies which can be used to modulate the morphology, proliferation, biochemical functioning, differentiation, attachment, migration, signaling, and/or cell death of a cell population by physical stimulation. Such topographies can be applied in vitro and in vivo to modulate cell behavior. Specific examples include implants provided with a topography of the invention which regulates the immune response, or an implant which increases osteogenesis. The invention furthermore pertains to objects which are used in vitro to modulate cell behavior.