A method for repairing damaged tooth enamel by coating dense layers of metal oxides
A technology of tooth enamel and oxide, applied in dentistry, pharmaceutical formulations, dental preparations, etc., to achieve the effect of simple and easy-to-obtain raw materials, restore mechanical properties, restore hardness and modulus
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Embodiment 1
[0035] Preparation method of zirconia restoration layer with tight connection with tooth enamel
[0036] In the first step, add 100 mL of distilled water to the beaker, stir in a water bath at 25°C for 10 minutes until the temperature is stable, add Tris / concentrated HCl buffer reagent, in which Tris is 0.848 g, concentrated HCl is 465 microliters, and the reaction pH is maintained at about 7.5 ;
[0037] In the second step, add 14 mg of ZrOCl to the solution prepared in the first step 2 2H 2 O powder, stir at 10-25°C for 10 minutes until completely dissolved ( figure 1 );
[0038] The third step is to slice the damaged enamel to be repaired ( figure 2 ) placed in the solution prepared in the second step ( figure 1 ), and continued to stir for 3h to obtain enamel coated with zirconia precursor;
[0039] The fourth step is to place the enamel coated with the zirconia precursor obtained in the third step in a hydrothermal reaction kettle with 10mL of polytetrafluoroethyle...
Embodiment 2
[0042] Preparation method of titanium oxide restoration layer with tight connection with enamel
[0043] In the first step, add 10mL of distilled water and 90mL of ethylene glycol into the beaker, stir in a water bath at 20°C for 10 minutes until the temperature is stable, add glycine / concentrated hydrochloric acid buffer pair, in which glycine is 0.376g, concentrated HCl is 140 microliters, The reaction pH was maintained at around 3.0;
[0044] In the second step, add 25 microliters of TiCl to the solution prepared in the first step 4 Liquid, stir at 25°C for 10 minutes until completely dissolved;
[0045] In the third step, the damaged enamel slice to be repaired is placed in the solution prepared in the second step, and continuously stirred for 4 hours to obtain the enamel coated with the titanium oxide precursor;
[0046] The fourth step is to place the titanium oxide precursor-coated enamel obtained in the third step in a hydrothermal reaction kettle with 10mL of polyte...
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