Retainers secure the results of orthodontic treatment, preventing teeth from shifting. These custom-made appliances, whether clear plastic aligners or wire-and-acrylic types, are worn daily and accumulate plaque, bacteria, and food debris. Proper hygiene is necessary to prevent bacterial buildup, bad breath, and potential oral health issues. Users often seek the safest methods for cleaning their appliance without causing material damage.
Conditional Approval for Mouthwash Use
You can use mouthwash with a retainer, but only under specific conditions that prioritize the appliance’s material integrity. Never soak a retainer in mouthwash for an extended period, as it is not an adequate replacement for mechanical cleaning. Orthodontists generally discourage using mouthwash as a long-term soaking solution.
If you choose to use mouthwash, it must be an alcohol-free and colorless formula to minimize damage risk. A non-alcoholic rinse helps reduce odor and surface bacteria when used for a brief, quick swish. This method should be viewed as a supplemental step, such as when away from home, and not a primary cleaning routine. The goal is to avoid prolonged contact with the plastic or acrylic material, which is sensitive to common chemical ingredients.
Ingredients That Cause Retainer Damage
Common ingredients in commercial mouthwashes can chemically degrade the acrylic or thermoplastic materials used in retainers. Alcohol, often present in strong formulas, acts as a drying agent and a solvent. Prolonged exposure to alcohol causes the plastic or acrylic material to become brittle, leading to micro-cracks and weakening the appliance’s overall structure.
Strong color dyes are problematic, especially for clear plastic retainers. These dyes can permanently stain the transparent material, causing discoloration or a yellowish tint. Peroxide compounds, sometimes included for whitening or antimicrobial properties, can also cause issues. High concentrations of peroxide may cause wire components to corrode or result in the clouding of the clear plastic surface.
Recommended Daily Retainer Cleaning Practices
The most effective method for cleaning your retainer is mechanical cleaning through gentle brushing. Use a soft-bristled toothbrush dedicated solely to the retainer to avoid introducing germs. Use a mild, non-abrasive cleanser, such as a specialized retainer cleaner or unscented liquid dish soap.
Avoid traditional toothpaste because most formulas contain abrasive particles that scratch the retainer’s surface. These scratches create microscopic crevices where bacteria and plaque can accumulate more easily over time. After brushing all surfaces thoroughly, rinse the retainer under lukewarm water to remove all cleanser residue.
For a deeper clean, use specialized effervescent soaking tablets designed for retainers or dentures. These tablets dissolve in water, creating a disinfecting solution that helps break down plaque and mineral buildup. Following a soak, the retainer should be gently brushed and rinsed completely before being worn again. Always allow the retainer to air dry fully before storing it in its ventilated case to prevent the growth of bacteria and fungi.