Related Experiment Video
Updated: May 23, 2026
02:42
Analysis of Craniomaxillofacial Malformations in Mice Using Three-dimensional Microcomputed Tomography
Published on: January 17, 2025
A computerized tomography study of the morphological interrelationship between the temporal bones and the
Helder Nunes Costa1, Rudolf Slavicek, Sadao Sato
1Division of Orthodontics, Department of Craniofacial Growth and Development Dentistry, Kanagawa Dental College, Yokosuka, Japan. hnc@netcabo.pt
Journal of Anatomy
|March 31, 2012
Summary
Temporal bone positioning significantly impacts craniofacial morphology. Sagittal inclination, more than frontal, influences skull base, jaw, and midface dimensions, affecting overall facial structure.
Area of Science:
- Craniofacial anatomy and morphology
- Biomechanics of the skull
- Anthropology
Background:
- The temporal bone's role in craniofacial complex dynamics is a long-standing hypothesis.
- Its spatial positioning (inclination) is proposed to directly influence facial morphology.
- Understanding this relationship is crucial for fields like orthodontics and anthropology.
Purpose of the Study:
- To investigate the influence of temporal bone spatial positioning (sagittal and frontal inclination) on overall craniofacial morphology.
- To analyze the correlation between temporal bone inclination and various 3D craniofacial measurements.
- To compare craniofacial differences between groups with anterior versus posterior temporal bone rotation.
Main Methods:
- Analysis of 3D linear, angular, and orthogonal measurements from virtual models of 163 modern human skulls.
- Reconstruction of skull models using cone-beam computed tomography (CBCT) images.
- Statistical correlation and subgroup comparison based on temporal bone sagittal inclination.
Main Results:
- Sagittal temporal bone inclination significantly correlates with cranial base dimensions, jaw positioning, and midfacial height (P < 0.01).
- Frontal inclination also shows significant correlations with cranial base and midfacial dimensions (P < 0.01).
- Anterior rotation of the temporal bone is associated with a longer cranial base, narrower skull, superiorly/posteriorly positioned articular eminence, shorter midface, and retrognathic jaws.
Conclusions:
- Craniofacial morphology is highly integrated with the positional relationships of the temporal bones.
- Sagittal inclination of the temporal bone appears to exert a greater influence on 3D craniofacial morphology than frontal inclination.
- These findings provide quantitative insights into the biomechanical relationships within the craniofacial complex.
More Related Videos
10:23Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
Published on: September 8, 2023
08:03Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
Published on: November 4, 2025
Related Concept Videos
01:10Computed Tomography
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
01:27Imaging Studies III: Computed Tomography
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
01:14Imaging Studies I: CT and MRI
Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
01:27Cranial Bones: Lateral View
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...
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...
01:22Sutures 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...
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...
01:08Overview of the Skull
The cranium (skull) is the skeletal structure of the head that supports the face and protects the brain. It is subdivided into the facial bones and the brain case, or cranial vault. The facial bones underlie the facial structures, form the nasal cavity, enclose the eyeballs, and support the teeth of the upper and lower jaws.
The cranial vault surrounds and protects the brain and houses the middle and inner ear structures. This cavity is bounded superiorly by the rounded top of the skull, which...
The cranial vault surrounds and protects the brain and houses the middle and inner ear structures. This cavity is bounded superiorly by the rounded top of the skull, which...