Case 1: A 58-year-old Chinese man complained of large painless GO that started ~10 years ago and progressively worsened.
The third patient was a 54-year-old male who visited our department June 11, 2009, with the chief complaint of anterior teeth sloping. Though clinical examination was performed as mentioned above (), no radiological examination was done due to the absence of the appearance of an infrabony defect (). He was diagnosed with chronic periodontitis localized on the 13-23 area and pathologic tooth migration. The treatment plan consisted of endodontic treatment, followed by periodontal therapy and tooth movement of 11 and 21, and prosthodontic treatment.\nAfter periodontal treatment was performed ( and ), an appliance was inserted ( and ). Clinical photographs of the front side and occlusal plane were taken 6 weeks after appliance insertion ( and ). Though prosthodontic treatment was recommended to the patient, the retention appliance was used. That's because the patient wanted to finish in the current state (). GR and CAL decreased about 1 mm compared to the first visit and there was no change in mobility ().