PROBLEM TO BE SOLVED: To provide a manufacturing method of a transparent orthodontic appliance that is used for correction of teeth.SOLUTION: A manufacturing method of a transparent orthodontic appliance is characterized by comprising: a process of determining a tooth contour model having a contour part surrounding the surface of the tooth where rotary correction is required a process of determining the rotation central axis of the tooth where the rotary correction is required a process of determining two points becoming symmetrical centering on the rotary central axis and coming into contact with the outer surface of the tooth, based on the rotary central axis and the rotation direction required by the correction of the tooth where the rotary correction is required a process of determining the rotary correction model for the rotary correction by projecting the contour part to the surface side of the tooth and the rotation direction side at the two points and a process of generating 3D tooth correction model data by applying the rotary correction model.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】歯の矯正のための透明矯正装置の製造方法を提供する。【解決手段】透明矯正装置の製造方法は、回転矯正が要求される歯の表面を囲む輪郭部を有する歯輪郭モデルを定める過程と、前記回転矯正が要求される歯の回転中心軸を定める過程と、前記回転中心軸および前記回転矯正が要求される歯の矯正に要求される回転方向に基づいて、前記回転中心軸を中心に対称となり且つ前記歯の外側表面に接する2ポイントを定める過程と、前記2ポイントで前記輪郭部を歯の表面側及び回転方向側に突出させて回転矯正のための回転矯正モデルを定める過程と、前記回転矯正モデルを適用して前記3D歯矯正モデルデータを生成する過程とを含んでなることを特徴とする。【選択図】図1
