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ORIGINAL ARTICLE
Year : 2018  |  Volume : 9  |  Issue : 1  |  Page : 8-13

The association between soft palate shape and Need's ratio in various sagittal skeletal malocclusions: A digital lateral cephalometric study


1 Department of Orthodontics, Surendera Dental College and Research Institute, Sri Ganganagar, Rajasthan, India
2 Department of Oral Pathology, Surendera Dental College and Research Institute, Sri Ganganagar, Rajasthan, India
3 Department of Orthodontics, Institute of Dental Sciences, Sehora, Jammu and Kashmir, India
4 Department of Pedodontics, Surendera Dental College and Research Institute, Sri Ganganagar, Rajasthan, India

Correspondence Address:
Dr. Eenal Bhambri
Department of Orthodontics, Surendera Dental College and Research Institute, H. H. Gardens, Powerhouse Road, Sri Ganganagar - 335 001, Rajasthan
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijor.ijor_41_17

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Aim: The present study was aimed to investigate the variation of soft palate morphology and Need's ratio in various sagittal skeletal malocclusions. Materials and Methods: The study was conducted on 300 individuals (aged 15–25 years) who presented to the department of orthodontics for orthodontic treatment. The participants were divided into skeletal Class I, II, and III based on ANB angle on the lateral cephalogram. The soft palate morphology was examined and individuals were grouped into six types. The Need's ratio was calculated for all the participants by division of pharyngeal depth by soft palate length. The results were then subjected to statistical analysis to find the association between morphological variants of soft palate and skeletal malocclusions. Results: The most common type of soft palate was leaf shaped and the least common was S shaped. Leaf-shaped soft palate was the most common in males and rat tail-shaped soft palate was common in females. Individuals with skeletal Class I malocclusion were most frequently found to have leaf-shaped soft palate, skeletal Class II malocclusion had rat tail type, and skeletal Class III had leaf shape and crooked shape in equal proportions. Need's ratio was maximum in skeletal Class III and minimum in Class II malocclusions. Conclusions: There was a significant correlation between the variants of soft palate and the types of skeletal malocclusion in North Indian individuals. The knowledge of morphological variants of soft palate helps the clinician in etiological study of obstructive sleep apnea syndrome, snoring, and other conditions.


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