The aesthetic characteristics of the patient were assessed from three macro-, mini-, and micro-aesthetic views, and the following problems were reported for the patients:

The treatment plan selection

The examinations suggested that the lack of stable contacts in palatal segments of the upper anterior teeth caused the dental cingulum loss in the upper jaw dentition. This alteration led to overgrowth of upper and lower teeth and ultimately aggravated the deep bite. During the examination of the casts, the CR contact of the lower anterior teeth on palatal tissues was observed.
The aesthetic treatment plan will be preceded by creating a stable posterior and anterior occlusion. The first stage of treatment consisted of establishing stable contacts by cingulum restoration for upper anterior teeth while creating smooth edges for the lower anterior teeth to ensure stable contacts of lower anterior teeth on palatal surfaces of the upper anterior teeth. Thus, after the clinical examination of the patient and analysis of the study casts, the Dahl technique was decided to be used for restoring and establishing occlusal contacts in correct positions to modify the occlusion and open the bite (figure 5).