Postgraduate student, Department of Prosthodontics, Faculty of Dentistry, Thamar University, Dhamar, Yemen.
Postgraduate student, Department of Orthodontics, Faculty of Dentistry, Sana'a University, Sana'a, Yemen.
J Prosthet Dent. 2017 Dec;118(6):732-735. doi: 10.1016/j.prosdent.2016.12.022. Epub 2017 Apr 21.
Establishing a correct occlusal vertical dimension is considered one of the most important aspects of facial esthetics for patients in need of oral rehabilitation.
The purpose of this retrospective study was to evaluate the use of a proposed linear skeletal distance to predict the appropriate occlusal vertical dimension.
A total of 93 digital cephalometric radiographs were collected in Joint Photographic Experts Group (JPEG) format (51 men, 42 women) from the archive of the orthodontics department at the Faculty of Dentistry, Sana'a University, Yemen. The distance from nasion (Na) to sella (Se) and the distance from anterior nasal spine (ANS) to menton (Me) were measured on the cephalometric radiographs, using ImageJ software. The data were compared statistically using the Pearson correlation coefficient, regression analysis, and paired- and 1-sample t tests (α=.05).
The findings of the study revealed a significant positive correlation (P<.001) between the measured distances in men, with minimum difference between the variables. However, no significant correlation (P=.058) was found for women.
The distance from Na to Se can be used as an additional aid in estimating the occlusal vertical dimension in men for the study population.
对于需要口腔修复的患者，建立正确的咬合垂直距离被认为是面部美学最重要的方面之一。
本回顾性研究的目的是评估使用拟议的线性骨骼距离来预测合适的咬合垂直距离。
从也门萨那大学牙科学院正畸系的档案中以联合图像专家组（JPEG）格式收集了 93 张数字化头颅侧位片（51 名男性，42 名女性）。使用 ImageJ 软件在头颅侧位片上测量从鼻根（Na）到蝶鞍（Se）的距离和从前鼻棘（ANS）到颏部（Me）的距离。使用 Pearson 相关系数、回归分析、配对和 1 样本 t 检验（α=.05）对数据进行统计学比较。
研究结果表明，男性测量的距离之间存在显著正相关（P<.001），变量之间的差异最小。然而，对于女性，未发现显著相关性（P=.058）。
对于研究人群中的男性，从 Na 到 Se 的距离可以作为估计咬合垂直距离的附加辅助手段。
