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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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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.
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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.
The Availability Heuristic01:08

The Availability Heuristic

A heuristic is a general problem-solving framework (Tversky & Kahneman, 1974). You can think of these as mental shortcuts that are used to solve problems. Different types of heuristics are used in different types of situations, and the impulse to use a heuristic occurs when one of five conditions is met (Pratkanis, 1989):

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Related Experiment Video

Updated: Jun 20, 2026

Precision of In Vivo Quantitative Tooth Wear Measurement Using Intra-Oral Scans
09:10

Precision of In Vivo Quantitative Tooth Wear Measurement Using Intra-Oral Scans

Published on: July 12, 2022

Predicting relative need for urgent dental care.

L Luzzi1, A J Spencer, K Jones

  • 1Australian Research Centre for Population Oral Health, School of Dentistry, Faculty of Health Sciences, The University of Adelaide, South Australia, Australia.

Community Dental Health
|September 29, 2009
PubMed
Summary

New models can help identify urgent dental care needs. These tools use patient-reported symptoms and psychosocial impacts to prioritize emergency dental appointments effectively.

Related Experiment Videos

Last Updated: Jun 20, 2026

Precision of In Vivo Quantitative Tooth Wear Measurement Using Intra-Oral Scans
09:10

Precision of In Vivo Quantitative Tooth Wear Measurement Using Intra-Oral Scans

Published on: July 12, 2022

Area of Science:

  • Dental Public Health
  • Health Services Research
  • Predictive Modeling

Background:

  • Emergency dental care demand often exceeds public clinic capacity.
  • Prioritizing patients with urgent needs is crucial for effective resource allocation.
  • Subjective patient-reported outcomes are increasingly recognized in healthcare assessment.

Purpose of the Study:

  • To develop and validate prediction models for differentiating urgent from non-urgent emergency dental care needs.
  • To incorporate subjective oral health indicators and psychosocial impact measures into urgency prediction.
  • To provide tools for efficient patient screening and prioritization in emergency dental settings.

Main Methods:

  • Binary logistic regression models were developed using data from 839 adult patients in South Australia and New South Wales public dental clinics.
  • Model 1 predicted urgency within 48 hours vs. 2+ days; Model 2 predicted urgency within 2-7 days vs. 8+ days.
  • Models integrated subjective indicators like pain and psychosocial factors such as sleep difficulty and appearance concerns.

Main Results:

  • Model 1 achieved 58% sensitivity, 77% specificity, and 59% positive predictive value (PPV).
  • Model 2 demonstrated 75% sensitivity, 65% specificity, and 71% PPV.
  • Selected probability cut-off points (≥0.40 for Model 1, ≥0.50 for Model 2) aligned with dentist assessments of urgency.

Conclusions:

  • The developed prediction models offer a valuable tool for screening urgent dental care needs.
  • These models can aid in prioritizing patients presenting for emergency dental treatment.
  • Integrating subjective patient data enhances the assessment of relative need for dental care.