Preventing and Arresting Primary Tooth Enamel Lesions Using Self- Assembling Peptide P₁₁-4 In Vitro

Area of Science:

• Biomaterials Science
• Dental Research
• Nanotechnology

Background:

• Dental caries remains a significant global health issue, particularly in primary dentition.
• Developing effective preventive and therapeutic agents for early caries management is crucial.
• Self-assembling peptides (SAP) are emerging as potential biomaterials for dental applications.

Purpose of the Study:

• To evaluate the efficacy of self-assembling peptides (SAP) in preventing and arresting caries in primary tooth enamel.
• To compare SAPs with established dental materials like fluoride varnish/mouthwash (FV/FMW), casein-phosphopeptide amorphous-calcium phosphate (CPP-ACP), nanohydroxyapatite (nHA), and resin infiltration (RI).

Main Methods:

• An in vitro study using 180 extracted primary teeth.
• Prevention experiment: Teeth were subjected to demineralization after application of SAPP, FV/FMW, CPP-ACP, or nHA.
• Arrest experiment: Pre-demineralized teeth received treatments including SAPR, FV, CPP-ACP plus fluoride, or RI, followed by pH cycling.
• Mineral loss and lesion depth were quantified using transversal microradiography.

Main Results:

• Fluoride varnish and fluoride mouthwash exhibited the most significant caries-preventive effects compared to all other groups.
• Resin infiltration and fluoride varnish were effective in arresting pre-existing caries lesions.
• Self-assembling peptide for repair (SAPR) and CPP-ACP plus fluoride did not demonstrate significant lesion arrest.

Conclusions:

• Fluoride varnish and fluoride mouthwash are highly effective in preventing caries in primary tooth enamel.
• Resin infiltration and fluoride varnish show promise for arresting caries lesion progression.
• Further research may be needed to optimize self-assembling peptides for caries management in primary teeth.