咬合垂直距离（VDO）：摩洛哥人群的头影测量标准
Vertical dimension of occlusion (VDO): cephalometric norms for a Moroccan population.
作者信息
Ousehal Lahcen, Jouhadi ElMehdi, Bennani Anas
机构信息
Department of Orthodontics, dental faculty , Hassan II university of casablanca, Rue 7, numéro 63 lotissement espérance 2, Ain Sbaa, Casablanca, Morocco.
Department of Prosthodontics, dental faculty , Hassan II university of casablanca, Casablanca, Morocco.
出版信息
J Orofac Orthop. 2016 Jan;77(1):39-44. doi: 10.1007/s00056-015-0006-0. Epub 2016 Jan 8.
OBJECTIVES
The purpose of this work was to develop cephalometric standards of the vertical dimension of occlusion (VDO) in Moroccan adults.
METHODS
Our data consisted of standardized lateral cephalometric radiographs of 98 students at the Casablanca Faculty of Dentistry. These included 74 women and 24 men aged 18-34 years, who were selected on the basis of a well-proportioned face, acceptable profile, Class I occlusion, minor or no crowding, and no history of orthodontic treatment. Mean values of seven (six angle and one linear) dentoskeletal parameters were determined from lateral cephalometric radiographs.
RESULTS
These Moroccans tended to exhibit an opening in the VDO in comparison with the standards of Steiner and Wylie and those of other populations: GoGn/SN: 35.4° ± 5.3°, FMA: 25.6° ± 5.1°, Occ/SN: 19.3° ± 4.7°, Occ/Fr: 9.1° ± 4°, SGn/Fr: 59.2° ± 3.4°, ENA-Xi-Pm: 46.2° ± 4.4°, ENA-Me: 69.7 ± 5.9 mm.
CONCLUSION
Moroccans have distinct cephalometric characteristics, which should be used as the reference in future orthodontic and prosthetic treatments.
目的
本研究旨在制定摩洛哥成年人垂直咬合高度（VDO）的头影测量标准。
方法
我们的数据包括卡萨布兰卡牙科学院98名学生的标准化头颅侧位X线片。这些学生年龄在18 - 34岁之间，包括74名女性和24名男性，他们是根据面部比例匀称、侧貌可接受、I类咬合、轻度拥挤或无拥挤以及无正畸治疗史等标准挑选出来的。从头颅侧位X线片中确定了七个（六个角度和一个线性）牙颌面参数的平均值。
结果
与斯坦纳和怀利的标准以及其他人群的标准相比，这些摩洛哥人在VDO方面倾向于表现出开口：下颌平面角（GoGn/SN）：35.4°±5.3°，面角（FMA）：25.6°±5.1°，咬合平面角（Occ/SN）：19.3°±4.7°，咬合平面与眶耳平面角（Occ/Fr）：9.1°±4°，下颌平面与眶耳平面角（SGn/Fr）：59.2°±3.4°，鼻根点至颏前点连线与X线平面夹角（ENA-Xi-Pm）：46.2°±4.4°，鼻根点至颏下点距离（ENA-Me）：69.7±5.9mm。
结论
摩洛哥人具有独特的头影测量特征，应将其作为未来正畸和修复治疗的参考。
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