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Related Experiment Video

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Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants

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Published on: March 29, 2018

Longitudinal changes in developmental defects of enamel.

Hai Ming Wong¹, Yi Feng Wen¹, Nigel Martyn King²

¹Paediatric Dentistry & Orthodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong.

Community Dentistry and Oral Epidemiology

|January 19, 2016

Summary

This summary is machine-generated.

Developmental defects of enamel (DDE) prevalence significantly decreased over three years, primarily due to a reduction in diffuse opacities. This study tracked DDE changes in participants from age 12 to 15.

Keywords:

epidemiology fluoride

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Area of Science:

Dental Public Health
Pediatric Dentistry
Epidemiology

Background:

Developmental defects of enamel (DDE) are common dental findings.
Limited longitudinal data exists on DDE epidemiological changes over time.
Understanding DDE's natural progression is crucial for public health interventions.

Purpose of the Study:

To investigate longitudinal changes in the prevalence and severity of DDE.
To determine if DDE characteristics evolve with age.
To identify specific DDE types contributing to observed changes.

Main Methods:

A cohort of 432 participants aged 12 were re-examined at age 15.
Index teeth (incisors and first molars) were assessed using the modified FDI (DDE) Index.
Examinations were conducted by trained and calibrated professionals.

Main Results:

Overall DDE prevalence significantly decreased between ages 12 and 15 (P < 0.001).
This reduction was mainly driven by a significant decrease in diffuse opacities (P < 0.001).
The severity of diffuse opacities also significantly reduced over the study period (P < 0.0001).

Conclusions:

Diffuse opacities show a tendency to fade in prevalence and severity over time.
The overall decrease in DDE was predominantly influenced by changes in diffuse opacities.
Demarcated opacities and hypoplasia did not show a similar fading trend.