In Vitro Assessment of Enamel Permeability in Primary Teeth with and without Early Childhood Caries Using Laser...

Area of Science:

• Dental Research
• Cariology
• Materials Science

Background:

• Early Childhood Caries (ECC) is a prevalent oral health issue in young children.
• Enamel demineralization is a hallmark of carious lesions.
• Understanding enamel permeability is crucial for predicting caries risk.

Purpose of the Study:

• To quantitatively compare enamel permeability between primary teeth with and without Early Childhood Caries (ECC).
• To utilize Laser Scanning Confocal Microscopy (LSCM) for precise measurement of dye penetration as an indicator of enamel permeability.

Main Methods:

• An in vitro experimental study involving exfoliated primary teeth (n=44) divided into ECC and non-ECC groups.
• Teeth were immersed in Rhodamine B dye, sectioned, and analyzed using LSCM to measure dye penetration depth.
• Statistical analysis was performed using the Mann-Whitney test.

Main Results:

• Teeth affected with ECC demonstrated significantly greater mean dye penetration depths (100.6 μm) compared to healthy teeth (31.55 μm).
• Higher dye penetration was observed across all tooth sections (incisal, middle, cervical) and surfaces (labial, lingual) in the ECC group.
• The differences in penetration depth between the two groups were statistically significant (p < .000).

Conclusions:

• Primary teeth affected by Early Childhood Caries exhibit markedly increased enamel permeability.
• This heightened permeability may be a contributing factor to the initiation and progression of ECC.
• Further research could explore the microstructural changes in enamel associated with ECC-related permeability.