In vitro evaluation of three iodine-containing compounds as antiplaque agents

Area of Science:

• Microbiology
• Dental Research
• Antimicrobial Agents

Background:

• Dental plaque is a complex biofilm responsible for common oral diseases.
• Dental caries and periodontal disease are significant public health concerns.
• Effective antiplaque agents are crucial for oral hygiene and disease prevention.

Purpose of the Study:

• To evaluate the in vitro antiplaque efficacy of inorganic iodine, povidone-iodine, and Wescodyne.
• To compare the antibacterial activity of these compounds against key dental plaque microorganisms.
• To assess the potential of inorganic iodine for controlling dental caries and periodontal disease.

Main Methods:

• Utilized an in vitro preclinical plaque model system.
• Tested solutions of inorganic iodine, povidone-iodine, and Wescodyne.
• Assessed antiplaque activity against preformed plaques of Streptococcus mutans, Streptococcus sanguis, Actinomyces viscosus, and Actinomyces naeslundii.

Main Results:

• Inorganic iodine exhibited greater effectiveness as an antiplaque agent than Wescodyne and povidone-iodine.
• Inorganic iodine showed superior performance based on minimal bactericidal concentration, time, and treatment frequency.
• Inorganic iodine was particularly effective against cariogenic (S. mutans) and periodontopathic (A. viscosus) bacteria, while sparing S. sanguis.

Conclusions:

• Topical inorganic iodine solutions show promise as an effective antiplaque agent.
• Inorganic iodine may be a valuable tool in managing dental caries and actinomyces-associated periodontal disease.
• Further research into topical inorganic iodine applications for oral health is warranted.