Production method for hard invisible brace set for stepped correction of tooth row enabling the patient to wear the hard invisible braces in sequence at fixed periods to gradually correct abnormal tooth alignment

• Main Authors: HE, JIAN-DE, LIANG, JIN-HONG, YANG, YING
• Format: Patent
• Language: Chinese; English
• Published: 16.06.2021
• Subjects: APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE; DENTISTRY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

This invention relates to a production method for a hard invisible brace set for stepped correction of a tooth row, wherein the hard invisible brace set includes a plurality of relay braces. The production method includes: firstly, acquiring an original tooth row image file of a tooth jaw of a patient; then, arranging, by a dental technician, a final tooth row image file on tooth arrangement software; next, defining displacements and rotation angles, required in each step, of teeth, and performing calculation by virtue of the arrangement software to obtain a plurality of stepped tooth row image files; and then, defining the surface thickness of each stepped tooth row image file by virtue of special software to obtain a shell-like brace image file of each relay, converting the shell-like brace image file into a numerical control instruction to control a multi-axis carving machine to carve hard invisible braces on a hard module made of a high-molecular polymer, and enabling the patient to wear the hard invisibl