Carek V, Jerolimov V, Buković D, Baucić I, Radionov D
School of Dental Medicine, University of Zagreb, Croatia.
Coll Antropol. 1997 Dec;21(2):549-54.
Radiographic cephalometry is a biomorphological measuring method used in the prosthodontics as well, and for the facial profile analysis of persons with complete dentures. The purpose of this examination was to objectivize the facial esthetics in patients with complete dentures. The measurements were taken from LL X-ray radiographs obtained by the apparatus "Ortoceph 10" (Siemens, Bensheim, Germany). On the sample of 80 subjects a convexity angle of facial bone structures (N-A: A-Pg) and profile angle of soft facial tissue (ft-unt: lnt-ct) have been examined. The subjects were divided into a group with upper and lower complete dentures (20 males and 20 females) and a group with natural teeth of eugnatic characteristics (20 male and 20 female). The measurements were taken by standard protractor at 0.5% precision. The statistical analysis within and among groups has been made by F-test and t-test respectively. The results showed that the bone structure convexity angle span a range between 0 degree and 5.5 degrees (X = 2.5 degrees), and the facial profile angle between 139.5 degrees and 155 degrees (X = 149 degrees) in persons with complete dentures. In persons with natural teeth the values of bone structure convexity angles span a range between -0.5 degree and 4.8 degrees (X = 2 degrees), and the facial profile angle between 136 degrees and 155.5 degrees (X = 151 degrees). The results of tests proved that there were no statistically significant differences in examined variables between persons with natural teeth and those with complete dentures (p > 0.05). The conclusion is that clinical methods of determining the vertical and horizontal intermaxilliary relations used in the designing procedures of complete dentures were reliable enough in reconstruction of examined angles of soft and hard facial profile structures.
X线头影测量法是一种生物形态测量方法，也用于口腔修复学以及全口义齿患者的面部轮廓分析。本次检查的目的是使全口义齿患者的面部美学客观化。测量是从使用“Ortoceph 10”设备（德国本斯海姆西门子公司）获得的全景X线片上进行的。在80名受试者的样本中，检查了面部骨骼结构的凸度角（N - A：A - Pg）和面部软组织的轮廓角（ft - unt：lnt - ct）。受试者分为佩戴上下全口义齿组（20名男性和20名女性）和具有正常牙特征的天然牙组（20名男性和20名女性）。测量使用精度为0.5%的标准量角器进行。组内和组间的统计分析分别采用F检验和t检验。结果显示，全口义齿患者的骨骼结构凸度角范围在0度至5.5度之间（X = 2.5度），面部轮廓角在139.5度至155度之间（X = 149度）。天然牙患者的骨骼结构凸度角范围在 - 0.5度至4.8度之间（X = 2度），面部轮廓角在136度至155.5度之间（X = 151度）。测试结果证明，天然牙患者和全口义齿患者在检查变量上没有统计学上的显著差异（p > 0.05）。结论是，在全口义齿设计程序中用于确定垂直和水平颌间关系的临床方法在重建软硬面部轮廓结构的检查角度方面足够可靠。
