Erdinc Aslihan M Ertan, Dincer Banu, Sabah Münire E
Department of Orthodontics, Faculty of Dentistry, University of Ege, Bornova, Izmir, Turkey.
J Clin Pediatr Dent. 2003 Summer;27(4):347-52. doi: 10.17796/jcpd.27.4.v619q30222674w30.
Evaluation of the position of the hyoid bone in relation to vertical facial development and comparative evaluation of the relation of this position with the dentofacial system was made on 25 patients with hyperdivergent vertical growth, 25 patients with hypodivergent vertical growth, and 25 patients with normal vertical facial development. SN-Go-Gn, Gonion, ANS-PNS/Go-Gn angles and S-Go, N-Me, S-Go/N-Me measurements from lateral cephalometric films were used as identification parameters. Seven horizontal, five vertical and five angular cephalometric measurements were made in order to determine the position of the hyoid bone. SN plane was used as the reference plane. Results were evaluated through "t" test. No significant relation was found between hyoid bone position and gender. When gender distinction was disregarded, and the group with normal facial development was compared with the hyperdivergent group, statistically significant differences were observed for CVT-H distance in horizontal measurements and for H-SN, H-F, H-PD, H-OD distances in vertical measurements. When the group with normal facial development was compared with the hypodivergent group, only the horizontal measurement Pg-H was statistically significant. The hyoid bone location in the hyperdivergent group was in a more of a posterior and superior position. The hyoid bone location in the hypodivergent group was not changed vertically, however, it had more of a posterior placement with the increase of Pg-H distance.
对25例垂直生长过度型患者、25例垂直生长不足型患者和25例面部垂直发育正常的患者，评估舌骨位置与面部垂直发育的关系，并对该位置与牙颌面系统的关系进行比较评估。使用头颅侧位片上的SN-Go-Gn、下颌角、ANS-PNS/Go-Gn角以及S-Go、N-Me、S-Go/N-Me测量值作为识别参数。为确定舌骨位置，进行了七项水平、五项垂直和五项角度的头颅测量。以SN平面作为参考平面。通过“t”检验评估结果。未发现舌骨位置与性别之间存在显著关系。当不考虑性别差异，将面部发育正常组与垂直生长过度组进行比较时，水平测量中的CVT-H距离以及垂直测量中的H-SN、H-F、H-PD、H-OD距离存在统计学显著差异。当将面部发育正常组与垂直生长不足组进行比较时，仅水平测量中的Pg-H具有统计学显著性。垂直生长过度组的舌骨位置更靠后且更高。垂直生长不足组的舌骨在垂直方向上位置未变，然而，随着Pg-H距离增加，其位置更靠后。
