| 摘要 |
An individual resin core used for a bracket fitting method of an orthodontic appliance includes an advance potion packed between a base of a bracket and a tooth and a core portion extending from the advance portion and covering a portion up to a cut edge of the tooth or occlusal surface. The core is individually formed for each tooth. Because this individual core has a low flexibility and is divided for each tooth, distortion and floating do not occur when it is fitted to the tooth of a patient, and the bracket can be bonded correctly. Since the resin core is independent of the alignment of teeth, it can be formed on a set up tooth impression. Since the bracket need not be returned to an original impression mold, technical work that would otherwise be necessary can be eliminated.
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