The lingual orthodontic technique of Fujita uses a mushroom archform because of the lingual tooth surface morphology. However, we found that if we cut the clinical crowns of cast models, the buccolingual distances at the gingival margin did not vary substantially. This let us to conclude that straight arch wires could be used in lingual orthodontics, if placed as close to the gingival margin as possible.
We determined the ideal bracket positions by measuring cast models of post treatment cases, and then, the prototype preadjusted lingual bracket were developed and used clinically.
We suggested that the lingual straight arch wire appliances would offer various advantages. We will improve the bracket design and mechanics more usefully. In this literature, we will introduce new techniques in lingual orthodontics.

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Recently in orthodontic treatment, teeth whitening therapy is became popular and popular. Especially in the effect of aesthetics, Lingual orthodontics with teeth whitening has some advanced points. Lingual orthodontics is become more attractive treatment by using teeth whitening during that active treatment. This time, I report the way and notice the teeth whitening before, during, and after lingual orthodontic treatment.

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Angle Class II case with anterior crowding. According to the analysis of the record, this is usually a case with the extraction of first premolars. However, 1|1 were concluded to be poor in prognostic and to be extracted. Temporary was fixed to the space extracted on the upper anterior area, which helped to conceal the extraction space. Finally, prosthetics was used together in order to form the teeth.

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