TY - JOUR
T1 - Treatment of severe anterior open bite with skeletal anchorage in adults
T2 - Comparison with orthognathic surgery outcomes
AU - Kuroda, Shingo
AU - Sakai, Yuichi
AU - Tamamura, Nagato
AU - Deguchi, Toru
AU - Takano-Yamamoto, Teruko
PY - 2007/11
Y1 - 2007/11
N2 - Introduction: Skeletal anterior open bite is a difficult problem to correct in orthodontic treatment. In adults, treatment of severe skeletal anterior open bite consists mainly of surgically repositioning the maxilla or the mandible. Recently, molar intrusion by using skeletal anchorage has been developed as a new strategy for open-bite treatment. In this study, we compared treatment outcomes in patients with severe anterior open bite treated with molar intrusion by using skeletal anchorage and with orthognathic surgery. Methods: Twenty-three subjects with overbite less than -3.0 mm were treated with skeletal anchorage (n = 10) or with LeFort I osteotomy combined with mandibular osteotomy (n = 13). Pretreatment and posttreatment lateral cephalograms were compared. Results: Incisors were significantly elongated in the surgically treated subjects (4.6 mm, P <.01). There were no significant differences in the treatment results between skeletal anchorage and surgery, with reduced facial heights of 4.0 and 3.8 mm, and increased overbites of 6.8 and 7.0 mm, respectively. Conclusions: These results suggest that molar intrusion with skeletal anchorage is simpler and more useful than 2-jaw surgery in the treatment of patients with severe anterior open bite.
AB - Introduction: Skeletal anterior open bite is a difficult problem to correct in orthodontic treatment. In adults, treatment of severe skeletal anterior open bite consists mainly of surgically repositioning the maxilla or the mandible. Recently, molar intrusion by using skeletal anchorage has been developed as a new strategy for open-bite treatment. In this study, we compared treatment outcomes in patients with severe anterior open bite treated with molar intrusion by using skeletal anchorage and with orthognathic surgery. Methods: Twenty-three subjects with overbite less than -3.0 mm were treated with skeletal anchorage (n = 10) or with LeFort I osteotomy combined with mandibular osteotomy (n = 13). Pretreatment and posttreatment lateral cephalograms were compared. Results: Incisors were significantly elongated in the surgically treated subjects (4.6 mm, P <.01). There were no significant differences in the treatment results between skeletal anchorage and surgery, with reduced facial heights of 4.0 and 3.8 mm, and increased overbites of 6.8 and 7.0 mm, respectively. Conclusions: These results suggest that molar intrusion with skeletal anchorage is simpler and more useful than 2-jaw surgery in the treatment of patients with severe anterior open bite.
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U2 - 10.1016/j.ajodo.2005.11.046
DO - 10.1016/j.ajodo.2005.11.046
M3 - Article
C2 - 18005833
AN - SCOPUS:34547675229
VL - 132
SP - 599
EP - 605
JO - American Journal of Orthodontics and Dentofacial Orthopedics
JF - American Journal of Orthodontics and Dentofacial Orthopedics
SN - 0889-5406
IS - 5
ER -