Abstract: Proposed is a regainer including a body part which is integrally formed of a shape memory material and supports teeth at opposite sides of tooth loss space, wherein the body part includes a first grip part which covers a portion of a perimeter of a tooth disposed at a first side relative to the tooth loss space, a second grip part which covers a portion of a perimeter of a tooth disposed at a second side relative to the tooth loss space, and a bridge which connects the first grip part with the second grip part and elastically supports the first grip part and the second grip part, wherein the bridge is formed in a form bent multiple times in the tooth loss space.

Abstract: Proposed is a removable retainer including a body part that is formed of a shape memory alloy material and has a front surface in close contact with the outer tooth surface of each tooth, and a fixing part coupled to the body part and fixing the body part, wherein the body part includes a curved protrusion part formed to protrude toward an interdental space to be inserted into the interdental space, and multiple support parts. A manufacturing method of the removable retainer includes a step of acquiring three-dimensional scanning data, a data processing step of generating first and second processing lines, a laser cutting step of laser cutting a flat plate-shaped base material to form a body-part forming part, a shape processing step of cutting the body-part forming part, and a fixing part coupling step of coupling the manufactured body part and the manufactured fixing part to each other.

Abstract: Proposed is an adhesive retainer including a body part which is formed of a shape memory alloy material and has a front surface in close contact with and attached to each tooth, wherein the body part includes a curved protrusion part which is formed to protrude toward an interdental space so as to be inserted into the interdental space, and multiple support parts having front surfaces which are in close contact with tooth surfaces of teeth outside the interdental space. A manufacturing method of the adhesive retainer includes a step of acquiring three-dimensional scanning data about a tooth arrangement, a data processing step of generating a first processing line and a second processing line, a laser cutting step of laser cutting a flat plate-shaped base material based on processing line data to form a body-part forming part, and a shape processing step of cutting the body-part forming part.

Abstract: Proposed are a spacer and a method of manufacturing the spacer. The spacer includes a body portion configured as a single structure and formed of a shape memory material, the body portion supporting teeth at both sides of a tooth loss space. Furthermore, the body portion includes a first grip portion surrounding a part around a tooth disposed at a first side with respect to the tooth loss space, a second grip portion surrounding a part around a tooth disposed at a second side with respect to the tooth loss space, and a bridge connecting the first grip portion and the second grip portion to each other. Furthermore, the first grip portion and the second grip portion have curved shapes open toward directions opposite to each other. Furthermore, the method includes a data obtaining process, a data processing process, and a laser cutting process.