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The position of hyoid bone on lateral cephalographs in various vertical facial patterns
Author(s):
1. Ghazala: Department of Orthodontics,Peshawar Dental College,Riphah International University- Islamabad ,Pakistan
2. Shahab Adil: Department of Orthodontics,Peshawar Dental College,Riphah International University- Islamabad ,Pakistan
3. Zafar Ul Islam: Department of Orthodontics,Peshawar Dental College,Riphah International University- Islamabad ,Pakistan
4. Gulalai Jan: Department of Orthodontics,Peshawar Dental College,Riphah International University- Islamabad ,Pakistan
5. Sana Riaz: Department of Orthodontics,Peshawar Dental College,Riphah International University- Islamabad ,Pakistan
6. Lalina Taj: Department of Orthodontics,Peshawar Dental College,Riphah International University- Islamabad ,Pakistan
Abstract:
To determine the position of hyoid bone on lateral cephalographs in various vertical facial patterns of orthodontic patients visiting Peshawar Dental College. Methodology: This descriptive study was conducted at Department of Orthodontics, Peshawar Dental College. A total of 75 patients (46% male and 54% female) fulfilling the inclusion criteria were included through non-proba­bility purposive sampling technique. These patients were divided into three groups of 25 patients each on the basis of FMA and Y axis on lateral cephalographs. Six angular, seven horizontal and seven vertical linear measurements were measured to evaluate the position of hyoid bone with its associated structures in different facial heights. Results: One way ANOVA and post hoc Bonferroni tests showed a statistically significant difference between hypodivergent and hyperdivergent patterns for angular measurement H axis-MP (p=0.021*) and vertical linear measurement H-MP (p=0.025*). In horizontal linear measurements, H-Pog has shown a statistically significant difference (p=0.023*) between normo-divergent and hyperdivergent facial patterns. Conclusions: Hyoid bone is positioned more infero-anterior in hyperdivergent subjects and superior-posterior in hypodivergent cases. The hyoid bone is positioned anteriorly in hyperdivergent subjects.
Page(s): 269-273
Published: Journal: Journal of Postgraduate Medical Institute, Volume: 37, Issue: 4, Year: 2023
Keywords:
Vertical Dimension , Cephalometry , Hyoid Bone
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