A positioning guidance method for tooth brackets is provided, including: obtaining, by an image capture unit, an oral image； obtaining, by a processing unit, a position of a candidate tooth according to a contour of the plurality of teeth in the oral image； obtaining, by the processing unit, a setting position of a bracket corresponding to the candidate tooth by accessing tooth information from a storage unit according to the position of the candidate tooth； and obtaining, by the processing unit, a bracket image from the oral image； and displaying, by the processing unit, a guidance indication on a display unit according to a bracket position corresponding to the bracket image and the setting position of the bracket.一種用於齒顎矯正器之定位導引方法，步驟包括：透過一影像擷取單元取得一口腔影像；透過一處理單元根據口腔影像中複數牙齒的輪廓取得一候選牙齒之一位置；透過處理單元根據候選牙齒之位置自一儲存單元中存取齒模資訊以取得對應於候選牙齒之一矯正器黏貼位置；透過處理單元自口腔影像中取得對應於一矯正器之一矯正器影像；以及透過處理單元根據矯正器影像所對應之一矯正器位置以及矯正器黏貼位置於一顯示單元中顯示一導引指示。
