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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...
Tooth Anatomy01:21

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.

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Related Experiment Video

Updated: Jul 19, 2026

Impact of Common Fruit Juices and Toothbrushing on the Discoloration of Primary Teeth
04:40

Impact of Common Fruit Juices and Toothbrushing on the Discoloration of Primary Teeth

Published on: March 27, 2026

Determining toothache severity in pediatric patients: A study.

V Gupta1, T Chandrasekar, P Ramani

  • 1Department of Oral and Maxillofacial Pathology, Saveetha Dental College, Chennai, India. vg07@rediffmail.com

Journal of the Indian Society of Pedodontics and Preventive Dentistry
|October 27, 2006
PubMed
Summary

Saliva sodium levels decrease and potassium levels increase with toothache intensity in children aged 3-14. These findings correlate with facial expressions and validate the Visual Analogue Scale (VAS) for pain assessment.

Related Experiment Videos

Last Updated: Jul 19, 2026

Impact of Common Fruit Juices and Toothbrushing on the Discoloration of Primary Teeth
04:40

Impact of Common Fruit Juices and Toothbrushing on the Discoloration of Primary Teeth

Published on: March 27, 2026

Area of Science:

  • Pediatric Dentistry
  • Biochemistry
  • Pain Management

Background:

  • Toothache is a common complaint in pediatric patients.
  • Assessing pain intensity in children can be challenging.
  • Salivary biomarkers may offer objective measures of pain.

Purpose of the Study:

  • To investigate the relationship between salivary sodium (Na+) and potassium (K+) levels and toothache intensity in children.
  • To correlate these salivary ion levels with pain intensity measured by the Visual Analogue Scale (VAS).

Main Methods:

  • A prospective study involving 50 pediatric patients (aged 3-14 years) with varying toothache intensities, including a control group.
  • Saliva samples were collected and analyzed for Na+ and K+ concentrations using a colorimeter kit.
  • Pain intensity was assessed using the Visual Analogue Scale (VAS), with facial expressions also documented.

Main Results:

  • Salivary sodium (Na+) levels showed a decrease with increasing toothache intensity.
  • Salivary potassium (K+) levels demonstrated an increase as toothache intensity rose.
  • Observed changes in Na+ and K+ levels correlated with facial expressions indicative of pain.

Conclusions:

  • A significant correlation exists between salivary Na+/K+ levels and the intensity of toothache in pediatric patients.
  • Salivary ion levels can serve as potential biomarkers for pain intensity in children.
  • The Visual Analogue Scale (VAS) is confirmed as a valid tool for assessing pain in this age group.