PMC7303752_01
Initial intraoral situation.
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The patient's biotype was thick, and there were no periodontal problems (Figure 1).
Initial diagnostic wax-up.
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Initial mock-up.
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The flowable composite resin is then dispensed in to the silicone template and positioned in the patient mouth (Figure 3).
Orthodontic treatment plan with the Invisalign  software. On the left, the initial situation (frontal and lateral view) and, on the right, the case at the end of the orthodontic treatment.
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The orthodontic treatment of the upper arch alone was carried out using transparent aligners (Figure 4), in order to redistribute the diastemas present in the superior frontal group so as to uniform the spaces, center the medians, and facilitate the subsequent prosthetic rehabilitation of the same.
Completion of orthodontic treatment.
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After six months, the orthodontic treatment was completed (Figure 5), alginate impressions of the dental situation with the redistributed diastemas were taken.
Final wax-up.
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The technician developed class IV plaster models and made the final wax-up on them (Figure 6), making a silicone template for the definitive mock-up.
Final teeth preparation.
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The preparation of teeth 13, 12, 11, 21, 22, and 23 was performed through the mock-up so that they could be minimally invasive and preserve the greatest possible amount of enamel (Figure 7).
Mock-up printing on final preparations.
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The mock-up was printed again on the prepared teeth, and it was finished and left in the patient's mouth as a temporary (Figure 8).
Final result with 3-year follow-up.
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The patient returned at the office every six months for maintenance calls, and 3 years after the cementation, the control photographs and radiographs were taken (Figure 9).