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Related Concept Videos

Sutures of the Skull01:22

Sutures of the Skull

The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...

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Related Experiment Video

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Method of Studying Palatal Fusion using Static Organ Culture
04:58

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Published on: September 19, 2015

Palatal asymmetry during development: an anatomical study.

R S Moreira1, E A Sgrott, H Stuker

  • 1Laboratório de Anatomia Topográfica e Descritiva, Universidade do Vale do Itajaí, Santa Catarina, Brazil.

Clinical Anatomy (New York, N.Y.)
|June 4, 2008
PubMed
Summary
This summary is machine-generated.

Hard palate asymmetry is a common developmental feature, present from fetal life through adulthood. While present in all skulls studied, these asymmetries were not statistically significant between sides or age groups.

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Area of Science:

  • Anatomy
  • Developmental Biology
  • Anthropology

Background:

  • Hard palate development is crucial for craniofacial structure.
  • Understanding hard palate asymmetry provides insights into normal and abnormal development.
  • Previous research has not comprehensively evaluated hard palate asymmetry across the entire lifespan.

Purpose of the Study:

  • To digitally evaluate hard palate asymmetry in dry skulls across seven developmental stages.
  • To quantify linear and angular measures of hard palate asymmetry.
  • To assess intra- and intergroup variations in hard palate asymmetry.

Main Methods:

  • Photographic and digital analysis of 248 dry human skulls.
  • Categorization into seven age groups: fetus, newborn, infant, child, adolescent, adult, and aged.
  • Measurement of linear (great palatine foramen to incisive fossa/posterior nasal spine) and angular dimensions.

Main Results:

  • All analyzed skulls exhibited some degree of hard palate asymmetry.
  • No statistically significant differences in asymmetry were found between right and left sides or across age groups.
  • Posterior palate measurements (PNS x GPF) showed greater asymmetry (4.6% mean index) than anterior measurements (INC x GPF, 2.8% mean index).
  • Angular measurements demonstrated more symmetry than linear measurements.

Conclusions:

  • Hard palate asymmetry is a consistent feature from early fetal development through aging.
  • Asymmetry is present even without the influence of masticatory function.
  • The findings contribute to understanding normal craniofacial development and potential variations.