A 50-year-old male patient visited our department on July 14, 2009 with the chief complaint of anterior teeth sloping down and open. As mentioned above, clinical and radiographic examinations were performed ( and , ). He was diagnosed with chronic periodontitis localized in the maxillary anterior teeth area and pathologic tooth migration. The treatment plan was periodontal therapy to eliminate causes, tooth movement of 11, and prosthodontic treatment.\nand show clinical photographs of the front side and the occlusal plane after periodontal treatment. As mentioned above, teeth were fixed at the location to where the teeth would shift with wax on the cast after space analysis ( and ), and the clear aligner was fabricated ().\nand show clinical photographs of the front side and the occlusal plane after 3 weeks. After space analysis, the teeth were fixed at the location where the teeth will be shifted to with wax again and the clear aligner was fabricated ( and ).\nand show photographs of the front side and occlusal plane after 6 weeks. Since the patient was satisfied with the results, use of a retention appliance was planned instead of prosthodontic treatment. After taking radiographs (), the retention appliance was applied ().\nAs a result, the probing pocket depth (PPD) and gingival recession (GR) decreased about 1 mm, and clinical attachment level (CAL) decreased about 2 mm when compared to the first visit. Also, mobility decreased slightly ().\nIn the radiographs, vertical and horizontal dimensions were measured (). Radiographically, the size of the infrabony defects decreased 0.8 mm vertically and 0.4 mm horizontally. However, actual bone filling in the lesions could not be determined based on the radiographic view alone.
Case 1: A 58-year-old Chinese man complained of large painless GO that started ~10 years ago and progressively worsened.