Abstract
In regards to treatment in lingual orthodontics, bracket positioning is difficult by sight. Lingual position is anatomically more complicated compared with labial position. So direct bonding of lingual orthodontics is difficult. A slight difference of the bracket position exerts location abnormality of a tooth.
Therefore indirect bonding is the mainstream in lingual orthodontics. In the preparation stage of making indirect bonding, it is necessary to make a resin base between the bracket and the tooth surface using the set up model. By making the resin base the data of the set-up model is reflected to the bracket. Now there are set-up models for both digital and analog, digital being considered the better. Yet there are advantages in the analog method.
On the other hand, cutting apart the teeth and wax operation are complex in analog. But there are great accuracy of functions using an articulator such as occasion of readjustment of the set up as well as the duplicity of the model and the actual patient are the strong points.
We would like to introduce appliance making by presenting the making of the analog set up considering its features.
