Method for enhancing bonding strength of dental titanium porcelain through depositing nanometer niobium nitride

A combination strength, nano-scale technology, applied in the direction of ion implantation plating, metal material coating process, coating, etc., can solve the problem of long-term clinical reports of titanium porcelain restorations, lack of protection and adhesion, and titanium porcelain restorations. failure and other problems, to achieve good clinical application prospects, easy access to related materials and equipment, and the effect of inhibiting oxidation behavior

Inactive Publication Date: 2013-03-27
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the past, pure titanium restorations had oxidation behavior at the firing temperature of porcelain, and the formation of an overly thick, unprotected and poorly adherent oxide film was considered to be the main reason for the failure of titanium porcelain restorations.
In recent years, the development of titanium low-melting porcelain powder has made it possible to restore titanium porcelain. However, there are no long-term clinical reports on titanium porcelain restorations.

Method used

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  • Method for enhancing bonding strength of dental titanium porcelain through depositing nanometer niobium nitride
  • Method for enhancing bonding strength of dental titanium porcelain through depositing nanometer niobium nitride
  • Method for enhancing bonding strength of dental titanium porcelain through depositing nanometer niobium nitride

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Embodiment 1

[0031] Use X-rays to screen 30 pure titanium substrates without casting defects, the size of which is 25mm×3mm×0.5mm, remove surface impurities with a tungsten carbide grinding head, and polish the pure titanium substrates. The grinding head speed is ≤15000rpm. After the polishing process is finished, the pure titanium substrate is placed in the air for self-passivation treatment, the passivation time is 10 minutes, and then the pure titanium substrate is cleaned with hot steam for 5 minutes, and then ultrasonically cleaned with acetone 15 minutes, and finally blow dry with pure nitrogen.

[0032] At 2bar pressure, with 120μmAl 2 o 3 The particles perform sandblasting on the pure titanium substrate, the distance between the sandblasting nozzle and the pure titanium substrate is 10 mm, the sandblasting angle is 45°, and the sandblasting time is 5 minutes. After the sandblasting treatment, the pure titanium substrate was cleaned again, still first cleaned with hot steam for 5 ...

Embodiment 2

[0040] In this specific embodiment, the pre-processing method of the pure titanium substrate is the same as that of the first embodiment, and will not be repeated here. The difference between the second embodiment and the first embodiment is that niobium nitride is not carried out on the surface of the pure titanium substrate. For deposition, directly perform porcelain sintering on the pure titanium substrate that has been sandblasted and cleaned and dried, and the porcelain sintering procedure is carried out according to the specifications of the selected porcelain powder.

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Abstract

The invention provides a method for enhancing the bonding strength of dental titanium porcelain through depositing nanometer niobium nitride. The method comprises the following steps: 1, screening a pure titanium substrate having no casting defects, pre-treating the pure titanium substrate, sandblasting the pure titanium substrate under a certain pressure, cleaning the pure titanium substrate after sandblasting ending, and blowing the pure titanium substrate by pure nitrogen to dryness; 2, depositing nanometer niobium nitride on the surface of the pure titanium substrate obtained after treating in step 1 through a depositing process; and 3, carrying out porcelain sintering of the pure titanium substrate subjected to the depositing treatment in a porcelain furnace by utilizing porcelain powder to obtain a porcelain fused titanium material. The method has the advantages of simple operation, inhibition of the oxidation of pure titanium at a porcelain sintering temperature, reaching of a titanium porcelain bonding strength enhancing purpose without influencing the aesthetic effect, convenient relevant material and equipment obtaining, good clinical application prospect, and high practical application value.

Description

technical field [0001] The invention relates to a method for enhancing the bonding strength of titanium-porcelain, in particular to a method for enhancing the bonding strength of dental titanium-porcelain by depositing nano-scale niobium nitride in the dental medical field. Background technique [0002] Porcelain-fused-to-metal materials are currently the most widely used fixed dental restorations in clinical practice, but the sensitization and biological toxicity of metal elements such as nickel may cause some adverse consequences. Pure titanium material has been widely used in the field of biomedicine due to its good biocompatibility, corrosion resistance, suitable physical properties and chemical properties, its low density and thermal conductivity, compared with other metals and alloys, it can protect the dental pulp , The effect of avoiding cold and heat stimulation is more obvious, and it is considered to be an ideal metal material for making metal-ceramic restorations...

Claims

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Application Information

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IPC IPC(8): C23C14/06C23C14/35
Inventor 唐祖明周雪锋梅茜顾宁
Owner SOUTHEAST UNIV
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