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Chun-Hsi Chung

人物介绍
Dr. Chung is Chauncey M. F. Egel Endowed Chair and Director of Postdoctoral Orthodontic Program of the Department of Orthodontics, University of Pennsylvania School of Dental Medicine. He served as the Director of the American Board of Orthodontics (2010 - 2018), and the President of the American Board of Orthodontics (2017 - 2018). Dr. Chung received his Doctor of Dental Medicine in 1986 and Orthodontic Certificate/Masters of Science in Oral Biology in 1992 from the University of Pennsylvania, and Postdoctoral Fellowship from National Institute of Health (1990- 1992). He has been a full-time faculty at the University of Pennsylvania since 1992, and has received numerous awards and honors. In addition, he has published numerous articles in refereed journals, including the American Journal of Orthodontics and Dentofacial Orthopedics, European Journal of Orthodontics, and Angle Orthodontist. In 2018, Dr. Chung was the Co-chair of the Scientific Program of the Annual Session of the American Association of Orthodontists in Washington, DC. He has been an active member of the E. H. Angle Society of Orthodontists since 2003, and a Diplomate of the American Board of Orthodontics since 2002.

摘要
Topic: Periodontal Considerations in Orthodontic Treatment

Loss of interdental papilla is usually seen after the adult severely crowded dentition is aligned orthodontically, and a triangular space below the contact of the teeth (black triangle) takes place. We have examined the subgingival plaques in adult severely crowded areas and found significant increase in the number and species of periodontopathogens, such as Fusobacterium species, Capnocytophaga species, C rectus, and P micros. After the crowded dentition was aligned, the number and species of periodontopathogens were significantly reduced or eliminated, so the periodontal health was improved. Nowadays the non-extraction orthodontic treatment modality has become popular, however, gingival recession has also become a more common problem. The gingiva recession is always accompanied with underlining bone dehiscence at varying degrees. Studies have shown that buccal (labial) tooth movement reduces the buccal (labial) alveolar bone height. In a contemporary orthodontic diagnosis and treatment planning, the gingiva biotype, thickness of buccal/lingual bone, maxillary and mandibular transverse skeletal dimensions, and buccolingual inclination of each tooth should be examined. For the areas with thin gingiva and lack of alveolar bone, soft tissue and/or bone augmentation should be considered to prevent gingival recession.
人物介绍
Dr. Chung is Chauncey M. F. Egel Endowed Chair and Director of Postdoctoral Orthodontic Program of the Department of Orthodontics, University of Pennsylvania School of Dental Medicine. He served as the Director of the American Board of Orthodontics (2010 - 2018), and the President of the American Board of Orthodontics (2017 - 2018). Dr. Chung received his Doctor of Dental Medicine in 1986 and Orthodontic Certificate/Masters of Science in Oral Biology in 1992 from the University of Pennsylvania, and Postdoctoral Fellowship from National Institute of Health (1990- 1992). He has been a full-time faculty at the University of Pennsylvania since 1992, and has received numerous awards and honors. In addition, he has published numerous articles in refereed journals, including the American Journal of Orthodontics and Dentofacial Orthopedics, European Journal of Orthodontics, and Angle Orthodontist. In 2018, Dr. Chung was the Co-chair of the Scientific Program of the Annual Session of the American Association of Orthodontists in Washington, DC. He has been an active member of the E. H. Angle Society of Orthodontists since 2003, and a Diplomate of the American Board of Orthodontics since 2002.

摘要
Topic: Periodontal Considerations in Orthodontic Treatment

Loss of interdental papilla is usually seen after the adult severely crowded dentition is aligned orthodontically, and a triangular space below the contact of the teeth (black triangle) takes place. We have examined the subgingival plaques in adult severely crowded areas and found significant increase in the number and species of periodontopathogens, such as Fusobacterium species, Capnocytophaga species, C rectus, and P micros. After the crowded dentition was aligned, the number and species of periodontopathogens were significantly reduced or eliminated, so the periodontal health was improved. Nowadays the non-extraction orthodontic treatment modality has become popular, however, gingival recession has also become a more common problem. The gingiva recession is always accompanied with underlining bone dehiscence at varying degrees. Studies have shown that buccal (labial) tooth movement reduces the buccal (labial) alveolar bone height. In a contemporary orthodontic diagnosis and treatment planning, the gingiva biotype, thickness of buccal/lingual bone, maxillary and mandibular transverse skeletal dimensions, and buccolingual inclination of each tooth should be examined. For the areas with thin gingiva and lack of alveolar bone, soft tissue and/or bone augmentation should be considered to prevent gingival recession.
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