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Related Concept Videos

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 16, 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

APF foam does reduce caries in primary teeth.

Dafydd Evans1

  • 1Dental School, University of Dundee, Dundee, Scotland, UK.

Evidence-Based Dentistry
|March 24, 2007
PubMed
Summary

Bi-annual application of acidulated phosphate fluoride (APF) foam significantly reduced caries increment in primary teeth over two years. This professional dental intervention proved effective in preventing tooth decay in young children.

Area of Science:

  • Pediatric Dentistry
  • Cariology
  • Public Health Dentistry

Background:

  • Dental caries remains a significant public health issue in young children.
  • Early intervention strategies are crucial for preventing caries progression.
  • Professional fluoride applications are a cornerstone of caries prevention programs.

Discussion:

  • The study utilized a robust double-blind, cluster randomized placebo-controlled trial design.
  • Professional application of 1.23% acidulated phosphate fluoride (APF) foam twice annually demonstrated efficacy.
  • The findings highlight the importance of consistent professional dental care in caries management.

Key Insights:

  • Bi-annual APF foam application significantly reduced caries increment (dmfs) in primary teeth over two years.

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Last Updated: Jul 16, 2026

Impact of Common Fruit Juices and Toothbrushing on the Discoloration of Primary Teeth
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  • A notable difference in caries increment was observed on approximal surfaces.
  • Higher percentages of children in the APF foam group experienced no caries increment compared to the placebo group.

    • Outlook:

    • Further research could explore long-term caries prevention outcomes with APF foam.
    • Investigating cost-effectiveness of professional APF foam application in diverse settings is warranted.
    • This study supports the integration of bi-annual APF foam application into routine pediatric dental care protocols.