Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5637652 | American Journal of Orthodontics and Dentofacial Orthopedics | 2017 | 11 Pages |
Abstract
We successfully treated a patient with achondroplasia with conventional orthodontic techniques. It was followed by long-term retention. The patient, a 12-year-old boy, had chief complaints of occlusal disturbance and mandibular protrusion. He had been diagnosed with achondroplasia and had growth hormone treatment in his early teenage years. His facial profile was concave with a bulging forehead and a retrognathic maxilla. It was characterized by a skeletal Class III jaw-base relationship with a retropositioned maxilla. At the age of 12Â years 9Â months, maxillary protraction was initiated with a reverse headgear; for 2Â years 6Â months, the maxillomandibular growth was controlled. After the growth spurt, at the age of 15Â years 6Â months, leveling and alignment of both dental arches were started with preadjusted edgewise appliances. After 83Â months of multibracket treatment, an acceptable occlusion with a Class I molar relationship and an adequate interincisal relationship was achieved, despite the simultaneous marked vertical growth of the mandible. The resultant occlusion was stable during a 6-year retention period, although considerable forward-downward mandibular growth was observed. Conclusively, our results indicated the necessity of long-term observation in this patient with achondroplasia, especially because of the persistent mandibular growth.
Related Topics
Health Sciences
Medicine and Dentistry
Dentistry, Oral Surgery and Medicine
Authors
Hiroyo Mori, Kazuma Matsumoto, Nobuhiko Kawai, Takashi Izawa, Shinya Horiuchi, Eiji Tanaka,