Implant surface with increased hydrophilicity
AssigneeBiomet 3i, LLC
InventorsJacqueline K. Marks, Robert L. Mayfield, Ross W. Towse
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Abstract
A method of increasing the hydrophilicity of an implant to be implanted into living bone. The method comprises the act of depositing non-toxic salt residuals on the surface of the implant by exposing the surface to a solution including the non-toxic salts. The method further comprises the act of drying the implant.
Claims21
A method of increasing the hydrophilicity of an implant to be implanted into living bone, the method comprising the acts of:
- depositing non-toxic salt residuals on the surface of the implant by exposing the surface to a solution including the non-toxic salts;
- and
- drying the implant.
A method of forming an implant to be implanted into living bone, the method comprising the acts of:
- roughening at least a portion of the implant surface to form a roughened surface;
- and
- increasing the hydrophilicity of the roughened surface by depositing non-toxic salt residuals on the roughened surface by exposing the roughened surface to a solution including the non-toxic salt.
A method of forming a dental implant made of titanium or titanium alloy, the method comprising the acts of:
- removing a native oxide layer from a threaded bottom portion of the dental implant;
- acid etching the threaded bottom portion to form a roughened surface having an array of microscale irregularities having peak-to-valley heights not greater than about 20 microns;
- depositing discrete hydroxyapatite nanocrystals on the roughened surface by exposure to a solution comprising 2-methoxyethanol solvent and the hydroxyapatite nanocrystals;
- and
- depositing salt residuals on the roughened surface by exposure to a solution comprising non-toxic salts, wherein the salt residuals increase the hydrophilicity of the implant surface.
A dental implant comprising:
- a head portion having a non-rotational feature;
- a lowermost end opposing the head portion;
- and
- a threaded bottom portion for engaging bone between the head portion and the lowermost end, the threaded bottom portion having a roughened surface with an array of microscale irregularities having peak-to-valley heights not greater than about 20 microns, the threaded bottom portion further including discrete nanoparticles located on the roughened surface, the nanoparticles including hydroxyapatite nanocrystals, the threaded bottom portion further including salt residuals deposited thereon.
21-31. (canceled)
Dependencies are inferred from the claim text.