Abstract: Disclosed is a Transparent Dental Alignment Device and a manufacturing method for the Transparent Dental Alignment Device. The disclosed manufacturing method for the Transparent Dental Alignment Device includes the steps: 3D printing the dental alignment device using a composition for forming transparent dental alignment devices as the raw material (S10); Removing uncured resin and liquid from the dental alignment device obtained in step S10 (S20); Post-curing the dental alignment device obtained in step S20 (S30); Post heat treatment of the dental alignment device obtained in step S30 (S40); Cleaning the dental alignment device obtained in step S40 (S50).

Abstract: A composition for forming artificial teeth, a method for producing artificial teeth, and artificial teeth produced using the technique are disclosed. The disclosed composition for forming artificial teeth includes 100 parts by weight of a first photocurable compound illustrated in Chemical Formula 1 below, 5 to 20 parts by weight of a second photocurable compound represented by Chemical Formula 2 below, 25 to 50 parts by weight of a third photocurable compound depicted by Chemical Formula 3 below, and 1 to 10 parts by weight of a fourth photocurable compound shown by Chemical Formula 4 below.

Abstract: A phantom model of teeth set, a method for evaluating the scanning accuracy of a scanner using the same model, and a method for evaluating the 3D printing precision of a printer using the same model is disclosed. The disclosed phantom model of teeth set comprises a base layer and a layer of teeth set comprising a tooth model as positioned on the base layer, and the tooth model may be constructed such that a shape observed in one direction differs from shapes viewed in the other direction.

Abstract: Provided are a composition for forming a transparent orthodontic device, a method of preparing a transparent orthodontic device, and a transparent orthodontic device prepared by using the method. The composition includes 100 parts by weight of a first photocurable compound represented by Formula 1, 35 parts by weight to 75 parts by weight of a second photocurable compound represented by Formula 2, 15 parts by weight to 65 parts by weight of a third photocurable compound represented by Formula 3, 5 parts by weight to 40 parts by weight of a fourth photocurable compound represented by Formula 4, and 1 part by weight to 15 parts by weight of a fifth photocurable compound represented by Formula 5.