Scholarlink

<p>Vertical facial patterns have been associated with craniocervical posture and cervical curvature, yet whether these associations persist in contemporary populations with widespread digital device use remains unclear. Using a historical control design, we compared lateral cephalograms from Korean women aged 18–35 years in a historical cohort (2005–2010; <i>n</i> = 99) and a post-2015 digital-era cohort (2015–2022; <i>n</i> = 113), stratified by mandibular plane angle into hypodivergent, normovergent, and hyperdivergent groups. Craniocervical posture was assessed using the nasion–sella to true vertical angle (NSL/VER) and cervical inclination angle (CIA); cervical curvature was classified as lordotic, straight, kyphotic, or sigmoid. The contemporary cohort showed greater forward head translation (CIA: 75.7 ± 5.5° vs. 83.1 ± 4.7°, <i>p</i> &lt; 0.001). NSL/VER differences among facial patterns persisted in both cohorts, but temporal CIA changes varied by pattern (interaction <i>p</i> = 0.018), with the largest reduction in hypodivergent individuals. Between-pattern CIA differences present in the historical cohort (<i>p</i> &lt; 0.001) were no longer statistically significant in the contemporary cohort, suggesting apparent attenuation of pattern-related postural differences. Cervical curvature distribution shifted significantly (<i>p</i> = 0.006; sigmoid 7.1%→20.4%; lordotic 20.2%→8.8%). These findings suggest that environmental factors prevalent in the digital era may be associated with reduced expression of skeletal influences on craniocervical alignment, with implications for individualized postural assessment.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Vertical facial pattern associations with craniocervical posture and cervical curvature appear attenuated in a contemporary digital-era cohort: a historical control analysis

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月6日

查看全文
  • Jeongeun Chang,
  • Ji-Hyun Lee,
  • Jae Hyun Park,
  • Sanghee Lee,
  • Hyung-Seog Yu,
  • Kee-Joon Lee,
  • Chooryung J. Chung,
  • Sun-Hyung Park,
  • Kyung-Ho Kim

摘要

Vertical facial patterns have been associated with craniocervical posture and cervical curvature, yet whether these associations persist in contemporary populations with widespread digital device use remains unclear. Using a historical control design, we compared lateral cephalograms from Korean women aged 18–35 years in a historical cohort (2005–2010; n = 99) and a post-2015 digital-era cohort (2015–2022; n = 113), stratified by mandibular plane angle into hypodivergent, normovergent, and hyperdivergent groups. Craniocervical posture was assessed using the nasion–sella to true vertical angle (NSL/VER) and cervical inclination angle (CIA); cervical curvature was classified as lordotic, straight, kyphotic, or sigmoid. The contemporary cohort showed greater forward head translation (CIA: 75.7 ± 5.5° vs. 83.1 ± 4.7°, p < 0.001). NSL/VER differences among facial patterns persisted in both cohorts, but temporal CIA changes varied by pattern (interaction p = 0.018), with the largest reduction in hypodivergent individuals. Between-pattern CIA differences present in the historical cohort (p < 0.001) were no longer statistically significant in the contemporary cohort, suggesting apparent attenuation of pattern-related postural differences. Cervical curvature distribution shifted significantly (p = 0.006; sigmoid 7.1%→20.4%; lordotic 20.2%→8.8%). These findings suggest that environmental factors prevalent in the digital era may be associated with reduced expression of skeletal influences on craniocervical alignment, with implications for individualized postural assessment.