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Related Concept Videos

Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

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The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
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Tooth Anatomy01:21

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The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
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Cranial Bones: Superior and Posterior View01:14

Cranial Bones: Superior and Posterior View

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The superior view of the cranium shows the frontal and paired parietal bones.
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
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Changes in the Appendicular Skeleton with Age01:09

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The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
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Bone Structure01:55

Bone Structure

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Within the skeletal system, the structure of a bone, or osseous tissue, can be exemplified in a long bone, like the femur, where there are two types of osseous tissue: cortical and cancellous.
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Overview of the Axial Skeleton01:09

Overview of the Axial Skeleton

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The skeleton is subdivided into two major divisions—the axial skeleton and the appendicular skeleton. The axial skeleton forms the vertical, central axis of the body. It includes all of the bones of the head, neck, chest, and back. It protects the brain, spinal cord, heart, and lungs. It also serves as the attachment site for muscles that move the head, neck, and back and for muscles that act across the shoulder and hip joints to move their corresponding limbs.
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A Morphometric and Cellular Analysis Method for the Murine Mandibular Condyle
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The Correlation between Mandibular Arch Shape and Vertical Skeletal Pattern.

Domenico Ciavarella1, Mauro Lorusso1, Carlotta Fanelli1

  • 1Department of Clinical and Experimental Medicine, Dental School of Foggia, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy.

Medicina (Kaunas, Lithuania)
|November 25, 2023
PubMed
Summary

This study found correlations between mandibular arch shape and vertical skeletal patterns in growing patients. Specific craniofacial features like jaw divergence influence mandibular arch form.

Keywords:
arch formgrowth evaluationorthodontic treatmentvertical growth

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Area of Science:

  • Orthodontics
  • Craniofacial Morphology
  • Dental Arch Analysis

Background:

  • Understanding the relationship between skeletal patterns and dental arch morphology is crucial in orthodontics.
  • Growing patients present unique challenges and opportunities for orthodontic intervention.
  • Previous research has explored various cephalometric and dental parameters, but comprehensive correlation studies are ongoing.

Purpose of the Study:

  • To investigate the correlation between mandibular arch shape and vertical skeletal patterns in growing individuals.
  • To identify specific cephalometric parameters associated with variations in mandibular arch form.
  • To enhance diagnostic and treatment planning strategies in pediatric orthodontics.

Main Methods:

  • Retrospective analysis of 73 Caucasian growing patients (mean age 9.4 years).
  • Collection of laterolateral radiographs and digital dental arch scans.
  • Analysis of eight cephalometric parameters (e.g., Jarabak ratio, ANB) and five dental measurements (e.g., mandibular arch width, occlusal angle).
  • Statistical comparison using Spearman's rho correlation test (p < 0.05).

Main Results:

  • Significant negative correlation found between the Jarabak ratio and intermolar angle.
  • Significant correlations observed between the Wits index, posterior mandibular width, and occlusal mandibular angle.
  • The intermaxillary angle (PP-PM) showed significant correlations with occlusal mandibular angle and posterior mandibular width.
  • The OP-MP angle correlated significantly with occlusal mandibular angle and posterior mandibular width.

Conclusions:

  • Mandibular arch form appears linked to predisposing craniofacial features.
  • Jaw divergence, Jarabak ratio, and intermaxillary angle are identified as potentially related factors.
  • Findings may inform more precise orthodontic treatment planning for growing patients.