A kind of denture and preparation method thereof
A technology of dentures and teeth, applied in the field of dentures and their preparation, can solve the problems of tooth wear, denture biomechanics, biocompatibility and aesthetics, denture hardness, high mechanical properties, etc., to achieve high biocompatibility and high modulus The effect of quantity and low cost
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[0038] On the one hand, the present invention proposes a kind of preparation method of artificial tooth, mainly comprises the following steps:
[0039] A shell block of a predetermined size is cut at a predetermined position of a specific type of natural shell. This step is specifically: select a specific type of natural shell from natural shells as a raw material; the specific type of natural shell needs to have the following characteristics: the bending strength of the specific type of natural shell is 26-158MPa, and the hardness is 2-3GPa , Young's modulus is 20-50GPa, and the maximum thickness is greater than 5mm. The color needs to be white or yellow, mainly consistent with the color of human teeth, so as to achieve an aesthetic effect. In addition, the setting position should be close to or located at the thicker part of the mouth edge of the snail, and close to or located at the thicker middle part of the shellfish. However, different types of shells have slightly dif...
Embodiment 1
[0062] In this embodiment, a kind of denture is prepared from the natural shell, Broad Pacific Conch, and the specific steps are as follows:
[0063] The color of the big ear snail is white, similar to human teeth, the maximum thickness is about 24mm, and the length is 15-16cm. For its shape and structure, see figure 1 As shown in figure a in the figure, select the thicker part on the big ear snail as the setting part (see figure 1 The position at the marked box on the structure shown in figure a), on which enough engraved shell blocks are cut. The selection requirements of this part are: the color is white, the thickness is large, and the texture is uniform. Through diamond wire cutting, a plurality of shell blocks with a length of 20mm, a width of 10mm and a thickness of about 10mm are cut from the snail along the vertical thread direction.
[0064] Find human tooth samples, obtain tooth shape data through a three-dimensional scanner; process the data through a CAD / CAM cha...
Embodiment 2
[0068] In this embodiment, a kind of denture is prepared from the natural shell Cypraecassis rufa, and the specific steps are as follows:
[0069] Marlboro is yellowish in color, thin in thickness and hard in texture, but it has the best performance. For its shape and structure, see figure 2 As shown in figure a, select the thicker area at the mouth of the Marlboro screw as the setting position (see figure 2 The position at the marked box on the structure shown in figure a in the figure), through diamond wire cutting, cut a plurality of shell pieces with a length of 20mm, a width of 10mm, and a thickness of about 10mm on the marlboro along the direction of the vertical thread body.
[0070]Find human tooth samples, obtain tooth shape data through a three-dimensional scanner; process the data through a CAD / CAM chairside system and establish three-dimensional model data (ie, three-dimensional model data of teeth).
[0071] Put the shell block into the denture engraving machi...
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Abstract
Description
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