Characteristics of a fluoride-releasing elastomeric chain

Area of Science:

• Orthodontics
• Biomaterials Science
• Dental Materials

Background:

• Elastomeric chains are crucial in orthodontic treatment for applying continuous force.
• The introduction of fluoride-releasing materials aims to provide additional cariostatic benefits during treatment.
• Evaluating the physical properties and fluoride release of new materials is essential for clinical application.

Purpose of the Study:

• To compare the physical properties and fluoride releasing capabilities of a novel fluoride-containing elastomeric chain (Fluor-I-Chain) with a standard gray elastomeric chain.
• To assess the force degradation and fluoride release over a three-week period.

Main Methods:

• Comparative analysis of elastomeric chains under simulated storage conditions.
• Measurement of force delivery at specific displacements (150g and 300g).
• Evaluation of force maintenance at a constant 100% distraction over three weeks.
• Quantification of fluoride release over the test period.

Main Results:

• Both chains exhibited force degradation when stored in solution, requiring increased displacement to achieve target forces.
• Fluor-I-Chain required significantly greater displacement than the standard chain to reach the same force levels.
• Fluor-I-Chain failed to maintain optimal force for tooth movement after one week at 100% distraction.
• The standard gray chain maintained adequate force delivery for the entire three-week period.
• Fluor-I-Chain released fluoride over three weeks at levels potentially beneficial for inhibiting demineralization and promoting remineralization.

Conclusions:

• Fluor-I-Chain demonstrates inferior force delivery and greater degradation compared to standard elastomeric chains.
• The reduced force output of Fluor-I-Chain may compromise its efficacy in orthodontic tooth movement.
• Despite force degradation, Fluor-I-Chain exhibits sustained fluoride release, offering potential cariostatic advantages.