A kind of oral osteoinductive regeneration membrane and preparation method thereof
An osteoinductive and regenerative membrane technology, applied in tissue regeneration, medical science, prosthesis, etc., can solve the problems of poor therapeutic effect and simple structure, and achieve the effect of increasing the treatment cycle, preventing displacement, and accelerating the reproduction of osteoblasts
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Embodiment 1
[0042] This embodiment provides a kind of oral osteoinductive regenerative membrane, such as figure 1 and figure 2 As shown, it includes hydrophobic layer a1, hydrophobic layer b2 and hydrophilic layer c3 arranged in sequence; the hydrophobic layer a1, hydrophobic layer b2 and hydrophilic layer c3 all have a porous three-dimensional structure; the thickness of the hydrophobic layer a1 is 0.1mm , the thickness of the hydrophobic layer b2 is 0.15 mm, and the thickness of the hydrophilic layer c3 is 0.1 mm.
[0043] The preparation steps of the oral osteoinductive regenerative membrane are as follows:
[0044] A. Dissolve suspending polylactic acid, L-polylactic acid, and acetyl tributyl citrate in dichloromethane in a mass ratio of 7:2:1, configure a polymer solution with a concentration of 10% (m / v), and stir evenly spare;
[0045] B. Pour the polymer solution obtained in step A into a coating machine, and use a solvent evaporation method to obtain a hydrophobic layer a and...
Embodiment 2
[0054] This embodiment provides an oral cavity osteoinductive regeneration membrane, including a hydrophobic layer a, a hydrophobic layer b, and a hydrophilic layer c arranged in sequence; the hydrophobic layer a, the hydrophobic layer b, and the hydrophilic layer c all have a porous three-dimensional structure; The thickness of the hydrophobic layer a is 0.2 mm, the thickness of the hydrophobic layer b is 0.2 mm, and the thickness of the hydrophilic layer c is 0.2 mm.
[0055] The preparation steps of the oral osteoinductive regenerative membrane are as follows:
[0056] A. Dissolve polylactic acid, polylactic acid, and tributyl acetyl citrate in dichloromethane in a mass ratio of 6:1:0.5, and prepare a polymer solution with a concentration of 20% (m / v), and stir evenly spare;
[0057] B. Add the polymer solution obtained in step A to 4-6 times the volume of ethanol to precipitate, stir for 1 h, filter with a Buchner funnel to obtain a solid mixture, and then dry under reduc...
Embodiment 3
[0066] This embodiment provides an oral cavity osteoinductive regeneration membrane, including a hydrophobic layer a, a hydrophobic layer b, and a hydrophilic layer c arranged in sequence; the hydrophobic layer a, the hydrophobic layer b, and the hydrophilic layer c all have a porous three-dimensional structure; The thickness of the hydrophobic layer a is 0.2 mm, the thickness of the hydrophobic layer b is 0.3 mm, and the thickness of the hydrophilic layer c is 0.1 mm.
[0067] The preparation steps of the oral osteoinductive regenerative membrane are as follows:
[0068] A. Dissolve polylactic acid, polylactic acid, and tributyl acetyl citrate in dichloromethane in a mass ratio of 8.5:2.5:1.5, and prepare a polymer solution with a concentration of 15% (m / v), and stir evenly spare;
[0069] B. Add the polymer solution obtained in step A to 4-6 times the volume of ethanol to precipitate, stir for 4 hours, filter with a Buchner funnel to obtain a solid mixture, and then dry und...
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