Cephalometric evaluation of pharyngeal airway dimension in different maxillomandibular sagittal relationship  a Cephalometric study

Dr. Pratik; Dr Ayush Arora; Dr.Avesh Sachan; Dr Ajit Parihar; Dr.Arunesh Singh; Dr Rishibha Bhardwaj

Volume : V, Issue : III, March - 2016

Cephalometric evaluation of pharyngeal airway dimension in different maxillomandibular sagittal relationship a Cephalometric study

Dr. Pratik, Dr Ayush Arora, Dr. Avesh Sachan, Dr Ajit Parihar, Dr. Arunesh Singh, Dr Rishibha Bhardwaj

Abstract :

Aim of the study: To evaluate the association between the maxillomandibular sagittal relationships on the dimensions of pharyngeal airway passage. Materials and methods: Lateral cephalograms of 105 subjects were used to measure the upper pharyngeal airway. Based on the sagittal skeletal pattern i.e. ANB Angle, Beta Angle,App– Bpp Angle, all the subjects were divided equally into three groups; skeletal class I (ANB 1– 2, β angle 27 – 35, APP–BPP 2 – 8 mm), skeletal class II (ANB > 2, β angle < 27, APP–BPP > 8), skeletal class III (ANB < 1, β angle > 35, APP–BPP < 8). All lateral cephalograms were traced manually. Results: The results showed a significant reduction in the upper airway at the level of nasopharynx and oropharynx and the airway showed a tendency to decrease from Class III to Class I and Class I to Class II. Conclusion: Sagittal skeletal pattern may be a contributory factor in variations in the upper airway dimension and the dimensions of the pharyngeal airway passage decrease markedly from Class III to Class I to Class II subjects.