American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics · 2023
Long-term effects of lateral nasal wall anchored facemasks compared with tooth-borne facemasks.
СтатьяСравнительное исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Jang Ji-Woo, Lee Mo-Hyeon, Chung Dong-Hwa, Lee Jin-Woo, Lee Sang-Min, Koh Sang-Duck, Park Jae Hyun
Аннотация
INTRODUCTION: This study investigated the long-term effect and stability of skeletally anchored facemasks (SAFMs) with lateral nasal wall anchorage compared with conventional tooth-borne facemasks (TBFMs) in growing patients with a Class III relationship.
METHODS: A total of 180 subjects treated with SAFMs (n = 66) and TBFMs (n = 114) were screened. Thirty-four subjects were qualified and grouped into the SAFM group (n = 17) and TBFM group (n = 17). Lateral cephalograms were taken at the initial observation, after the protraction, and at the final observation.
RESULTS: Greater advancement of the maxilla was attained with SAFM than with TBFM after protraction (initial observation - after the protraction) (P <0.05). In particular, advancement of the midfacial area (SN-Or) was prominent and maintained after the postpubertal stage (P <0.05). The intermaxillary relationship was also improved (ANB, AB-MP) (P <0.05), and greater counterclockwise rotation of the palatal plane (FH-PP) was observed in the SAFM group compared with the TBFM group (P <0.05).
CONCLUSIONS: Compared with TBFM, the orthopedic effects of SAFM were greater in the midfacial area. The palatal plane had a greater counterclockwise rotation in the SAFM group than in the TBFM group. Maxilla (SN-Or), intermaxillary relationship (APDI), and palatal plane angle (FH-PP) demonstrated a significant difference between the 2 groups after the postpubertal stage.
METHODS: A total of 180 subjects treated with SAFMs (n = 66) and TBFMs (n = 114) were screened. Thirty-four subjects were qualified and grouped into the SAFM group (n = 17) and TBFM group (n = 17). Lateral cephalograms were taken at the initial observation, after the protraction, and at the final observation.
RESULTS: Greater advancement of the maxilla was attained with SAFM than with TBFM after protraction (initial observation - after the protraction) (P <0.05). In particular, advancement of the midfacial area (SN-Or) was prominent and maintained after the postpubertal stage (P <0.05). The intermaxillary relationship was also improved (ANB, AB-MP) (P <0.05), and greater counterclockwise rotation of the palatal plane (FH-PP) was observed in the SAFM group compared with the TBFM group (P <0.05).
CONCLUSIONS: Compared with TBFM, the orthopedic effects of SAFM were greater in the midfacial area. The palatal plane had a greater counterclockwise rotation in the SAFM group than in the TBFM group. Maxilla (SN-Or), intermaxillary relationship (APDI), and palatal plane angle (FH-PP) demonstrated a significant difference between the 2 groups after the postpubertal stage.