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Related Concept Videos

Tooth Anatomy01:21

Tooth Anatomy

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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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Teeth01:15

Teeth

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The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
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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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Oral Cavity01:11

Oral Cavity

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The oral cavity, or the mouth, is a complex structure in humans that plays a vital role in our day-to-day lives. Its role is not only in chewing and swallowing food; it also plays a role in speech and facial expressions.
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Gross Anatomy of Bone01:17

Gross Anatomy of Bone

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The two main features of a long bone are the diaphysis and the epiphysis.
The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The walls of the diaphysis are composed of dense and hard compact bone made of numerous osteons — the functional unit of the compact bone. The hollow region in the diaphysis is called the medullary cavity, which harbors the bone marrow. In infants and children, this marrow cavity is filled with red marrow, whereas in...
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Structural Joints: Fibrous Joints01:03

Structural Joints: Fibrous Joints

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Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints.
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The Slice Culture Method for Following Development of Tooth Germs In Explant Culture
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Relationship between external and internal structures in deciduous teeth: a multidisciplinary study.

V Tosco1, R Delfina Valloreo2, M T Petricca2

  • 1Department of Clinical Sciences and Stomatology, Polytechnic University of Marche, Ancona, Italy.

European Journal of Paediatric Dentistry
|November 28, 2023
PubMed
Summary
This summary is machine-generated.

This study analyzed deciduous teeth morphology using X-ray and micro-CT. A consistent correlation was found between external and internal dental structures, offering insights for restorative dentistry.

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Area of Science:

  • Paleoanthropology
  • Dental Morphology
  • Endodontics

Background:

  • Deciduous teeth morphology is understudied compared to permanent teeth.
  • Obtaining sound deciduous teeth for measurement presents challenges.

Purpose of the Study:

  • To evaluate and compare internal and external structures of deciduous teeth.
  • Utilize completely preserved hominid findings for analysis.
  • Employ X-ray and micro-CT examination techniques.

Main Methods:

  • Digital photography of samples.
  • X-ray and micro-computed tomography (micro-CT) analysis.
  • Calculation of parameters to derive a P-factor for normalization.

Main Results:

  • Established a constant correlation between external and internal dental structures.
  • Demonstrated this correlation is independent of gender, tooth type, shape, or arch sector.

Conclusions:

  • The findings provide a reliable basis for understanding deciduous tooth morphology.
  • Highlights the P-factor as a significant normalization coefficient.