A 30-year-old female patient diagnosed as Angle class I upper protrusion associated with post-juvenile periodontitis had diastema of maxillary incisors since she was about 20 years old. She was treated by multidisciplinary approach of a periodontist and an orthodontist and patients obtained esthetical dental arch and functional occlusion. Periodontal tissue was also in good condition and she was very satisfied with the outcome. The patient has obtained periodontal and orthodontic long favorable stability. Good periodontal condition has been maintained for 6 years after active orthodontic treatment.