Enamel decalcification in orthodontic treatment.

Area of Science:

• Dental materials science
• Preventive dentistry

Background:

• Dental caries remains a significant public health concern.
• Protecting tooth enamel from acid demineralization is crucial for caries prevention.

Purpose of the Study:

• To evaluate the efficacy of different dental sealants in preventing enamel decalcification.
• To compare the protective effects of Copalite, Portrait Veneer, Protecto, and Nuva-Seal against acid challenge.

Main Methods:

• 120 extracted premolars were divided into five groups, treated with different sealants or a control.
• Teeth underwent simulated in vivo conditions (thermocycling) and were submerged in a decalcifying gelatin for 7, 14, or 21 weeks.
• Decalcification was assessed, and data were analyzed using the chi-square test.

Main Results:

• Acid-etching sealants provided superior protection against decalcification compared to non-acid-etching materials.
• Nuva-Seal exhibited the best performance, offering significant protection for up to 21 weeks.

Conclusions:

• Acid-etching dental sealants are effective in preventing enamel decalcification.
• Nuva-Seal is a highly effective sealant for long-term protection against demineralization in this experimental model.