Provided is a medical device including a porous portion and a dense portion, wherein an arithmetic average roughness of a surface of the porous portion is 2.0 μm or greater but 20 μm or less, and wherein an arithmetic average roughness of a surface of the dense portion is less than 2.0 μm.

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.

The invention relates to a coloured zirconia ceramic dental mill blank having fluorescing properties, processes of production such a mill blank and uses thereof, in particular for producing zirconia ceramic dental restorations.

The dental mill blank having a shape allowing the dental mill blank to be attached or fixed to a machining device, the dental mill blank comprising a porous zirconia material, the porous zirconia material comprising the oxides Zr oxide calculated as ZrO.sub.2: from about 80 to about 97 wt.-%, Al oxide calculated as Al.sub.2O.sub.3: from about 0 to about 0.15 wt.-%, Y oxide calculated as Y.sub.2O.sub.3: from about 1 to about 10 wt.-%, Bi oxide calculated as Bi.sub.2O.sub.3: from about 0.01 to about 0.20 wt.-%, Tb oxide calculated as Tb.sub.2O.sub.3: from about 0.01 to about 0.8 wt.-%, and optionally one or two of the following oxides: Er oxide calculated as Er.sub.2O.sub.3: from about 0.01 to about 3.0 wt.-%, Mn oxide calculated as MnO.sub.2: from about 0.0001 to about 0.08 wt.-%, wt.-% with respect to the weight of the porous zirconia material.

The invention relates to a dental implant having various regions with different degrees of surface roughness.

Anti-biofilm osseointegrating and/or tissue-integrating implantable biomaterial devices that optionally can elute therapeutic ions such as magnesium, silver, copper and/or zinc. In certain embodiments, the devices are engineered to produce structures suitable as implants having a relatively high surface population of zeolite. Methods of producing the devices are also disclosed.

A dental implant includes a post and an abutment extending from the post, the post and abutment being made from metal. A crown having a hollow cavity is attached onto the abutment, the crown being configured with a metallic insert that can be accessed and coupled to the abutment to enable electrical contact. In one version, the crown includes a metallic core and in another version, the crown can include a formed recess that receives a portion of the metal abutment. In each version, an exposed metallic area is provided, enabling electrical conduction to the abutment and post as part of a bacterial treatment of the dental implant.

A crown and root dental restoration includes a prosthesis having at least one through canal having one end opening into at least one root canal and opening into an outer face of the restoration, the through canal forming with the root canal a cavity extending along a first direction; reinforcement pins arranged in the root canal and the through canal, at least one reinforcement pin connecting the through canal with the root canal, the reinforcement pins having a length smaller than a total height of the through canal and a dental root; and a glue filling the root canal and the through canal, the glue contacting sidewalls of the through canal, sidewalls of the root canal, and sidewalls of each reinforcement pin.

A method of forming an implant to be implanted into living bone is disclosed. The method includes the act of roughening at least a portion of the implant surface to produce a microscale roughened surface. The method further includes forming a nanoscale roughened surface on the microscale roughened surface. The method further includes the act of depositing discrete nanoparticles on the nanoscale roughened surface though a one-step process of exposing the roughened surface to a solution including the nanoparticles. The nanoparticles have a material having a property that promotes osseointegration.

Dental device (1) for ridge preservation around the socket (2) of an extracted tooth and for promoting jaw bone regeneration inside the socket (2) of the extracted tooth, the dental device (1) comprising: a screw (3) which is entirely made of a biodegradable material to eliminate the need for a removal surgery, wherein the screw (3) is adapted for tight fixation within the jaw bone (4) in the socket (2) to prevent micromovements during bone-tissue regeneration, wherein the screw (2) has a length such that its top is, in the inserted state, flush with the alveolar ridge (5) around the socket (2) to promote full bone regeneration inside the socket (2), and wherein the screw (3) has a hollow (6) and pores (7), wherein the diameters of the pore (7) is substantially equal to or larger than 20 micrometers.

Methods and systems for automatically spraying a glaze solution onto a dental prosthesis are described. The automated spray glazing system includes: a first spray gun; a controller, and a gripper configured to hold the dental prosthesis and to rotate the dental prosthesis about an axis. The controller is configured to rotate the gripper and spray a glaze solution from the first spray gun using a glazing profile based at least in part on a type of the dental prosthesis. The glazing profile is selected such that a cross-sectional thickness of a resulting-glazed material of the dental prosthesis has an average thickness range between 15 to 63 μm and a standard deviation of less than 6 μm when measured at locations in an upper half of the dental prosthesis.