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Related Concept Videos

Teeth01:15

Teeth

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 and...
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Tooth Anatomy

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 grinding food.
Development of the Oral Microbiota01:28

Development of the Oral Microbiota

The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...

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Related Experiment Video

Updated: Jun 2, 2026

Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System
07:03

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Published on: May 5, 2022

[Evolution and future development of dental unit].

Z X Li1, X D Zhou2, J Zhou1

  • 1Department of International Medical Center, Capital Medical University School of Stomatology, Beijing 100070, China.

Zhonghua Kou Qiang Yi Xue Za Zhi = Zhonghua Kouqiang Yixue Zazhi = Chinese Journal of Stomatology
|June 1, 2026
PubMed
Summary
This summary is machine-generated.

Dental units evolved from basic chairs to smart, digital systems, improving dental care quality and safety. This review highlights key innovations for future dental equipment development.

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Last Updated: Jun 2, 2026

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Area of Science:

  • Biomedical Engineering
  • Dental Technology
  • Medical Device Development

Background:

  • The dental unit is essential for high-quality, efficient, and safe dental care.
  • Continuous innovation in structure, function, ergonomics, and clinical efficiency drives dental unit development.

Purpose of the Study:

  • To systematically review the historical evolution of the dental unit.
  • To summarize key technological advancements in dental unit development.
  • To provide insights for future innovation in dental medical equipment, particularly in China.

Main Methods:

  • Systematic literature review of dental unit development.
  • Analysis of structural and functional innovations.
  • Examination of ergonomic and clinical efficiency improvements.

Main Results:

  • The dental unit has transformed from a simple dental chair to an intelligent, digitally integrated system.
  • Key advancements include innovations in design, materials, digital integration, and patient/dentist ergonomics.
  • The review identifies critical milestones in the technological progression of dental treatment systems.

Conclusions:

  • Understanding the historical trajectory of dental units is crucial for future innovation.
  • Technological advancements have significantly enhanced dental care delivery and safety.
  • This review offers a foundation for fostering independent innovation and application of advanced dental equipment in China.