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Nose and Nasal Cavity01:24

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The nose is composed of an observable exterior segment (external nose) and an internal segment within the skull known as the nasal cavity (internal nose). The external nose, visible on the face, consists of a framework of bone and hyaline cartilage enveloped in skin and muscle and lined with a mucous membrane. This structure is supported by the frontal bone, nasal bones, and maxillary bone and is supplemented by a cartilaginous framework comprising the septal nasal cartilage, lateral nasal...
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The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
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Shape analysis of the craniofacial skeleton in children prenatally exposed to anticonvulsant medications using geometric morphometrics.

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Effect of septal deviation on nasomaxillary shape: A geometric morphometric study.

Roni Abou Sleiman1, Antoine Saadé1

  • 1Department of Orthodontics and Dentofacial Orthopedics, Lebanese University, Beirut, Lebanon.

Journal of Anatomy
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Summary

Nasal septum deviation is linked to smaller nasal cavities and reduced maxillary size, impacting craniofacial development. Early intervention like septoplasty may be crucial for proper nasomaxillary complex growth.

Keywords:
cephalometrygeometric morphometricsmaxillanasal cavityseptal deviation

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Area of Science:

  • Orthodontics
  • Craniofacial development
  • Respiratory physiology

Background:

  • Nasal breathing is vital for craniofacial complex development.
  • Nasal septum deviation can obstruct airflow, potentially hindering development.
  • The relationship between septal deviation and nasomaxillary structures requires further investigation.

Purpose of the Study:

  • To investigate the relationship between nasal septum deviation and nasal cavity/maxillary structures.
  • To analyze shape variations and covariation between these anatomical regions.

Main Methods:

  • Cross-sectional study of 62 adult cephalometric radiographs.
  • Procrustes analysis for shape variation.
  • Principal Component Analysis (PCA) for shape space evaluation.
  • Partial Least Squares (PLS) analysis for covariation.

Main Results:

  • Nasal septum deviation correlated with reduced nasal cavity and maxillary areas.
  • Subjects with minor septal deviation showed significantly larger nasal cavity and maxillary dimensions.
  • PLS analysis revealed strong covariation between the nasal septum and the nasomaxillary complex.

Conclusions:

  • Nasal septum deviation negatively impacts nasal cavity and maxillary development.
  • Early septoplasty in growing patients is recommended to normalize nasomaxillary complex function and growth.