A clear plastic retainer (such as Essix or Vivera) is a custom-made, transparent appliance that fits snugly over your teeth to maintain alignment after orthodontic treatment. Made from thermoplastic material, these devices require consistent care to remain effective and hygienic. Because the retainer sits against the teeth and gums for long periods, it is constantly exposed to oral bacteria, plaque, and food particles. Failing to clean it leads to the buildup of biofilm, which causes odors, discoloration, and can negatively impact oral health by transferring microbes back into the mouth.
Daily Cleaning Routine
The fundamental step in maintaining your clear plastic retainer is to clean it every time you remove it from your mouth. This routine should be performed immediately while the appliance is still moist, as wet plaque is easier to remove than dried debris. Begin by rinsing the retainer thoroughly under cool or lukewarm running water to wash away loose food particles and saliva. Using water that is too hot can compromise the shape of the plastic.
Once rinsed, gently brush the entire surface of the retainer, both inside and out, using a dedicated, soft-bristled toothbrush. Use a non-abrasive, mild liquid hand soap or dish soap as the cleaning agent, as it effectively breaks down fats and proteins without damaging the plastic. A separate toothbrush must be used to prevent the transfer of abrasive residues from standard toothpaste. After brushing, rinse the retainer again with cool water to ensure all soap residue is completely removed before reinserting the appliance.
Deep Cleaning and Sanitization Methods
While the daily routine removes surface plaque, periodic deep cleaning is necessary to sanitize the plastic and break down stubborn mineral deposits. This should be done once a week or when cloudiness or white buildup becomes noticeable. Commercial effervescent retainer cleaning tablets offer a convenient method; these are dropped into water with the retainer and use chemical reactions to disinfect and lift debris. Always follow the manufacturer’s directions regarding soaking time, as prolonged exposure can be detrimental to the plastic material.
A common household option is a diluted white vinegar solution, which uses mild acetic acid to dissolve calcium deposits and kill bacteria. A solution of one part white vinegar mixed with one part lukewarm water is sufficient for this sanitizing soak. The retainer should be fully submerged in this mixture for 15 to 20 minutes. Following the soak, gently brush the retainer to remove any loosened residue, and then rinse it thoroughly with plain water to eliminate any residual vinegar taste or smell.
Tools and Substances to Avoid
Several common cleaning agents and tools must be avoided when caring for clear plastic retainers because they can cause irreparable damage. A standard mistake is using regular toothpaste, which contains abrasive particles designed to polish tooth enamel. These scrubbing agents create microscopic scratches on the smooth plastic surface, making the retainer appear cloudy and creating harbors for bacterial growth and staining. Once scratched, the plastic’s clarity and hygiene are permanently compromised.
Exposure to high temperatures is another significant risk, as it can permanently alter the retainer’s shape. Never rinse, soak, or clean the appliance with hot or boiling water, as the heat can cause the thermoplastic material to warp or shrink. A misshapen retainer will no longer fit correctly over the teeth and will fail to hold the teeth in their corrected position.
Finally, avoid harsh household chemicals like alcohol-based mouthwash, chlorine bleach, or other strong disinfectants. These substances can degrade the plastic structure and leave behind residues that are unsafe for oral contact.
Proper Storage and Handling
When the clear plastic retainer is not being worn, proper storage is necessary for both its protection and cleanliness. The most secure place for the appliance is its designated, protective retainer case. This case is designed to be rigid to prevent the retainer from being crushed or bent, which can easily happen if it is wrapped in a napkin or left loose. A ventilated case is preferable, as it allows residual moisture to dry out, inhibiting the growth of bacteria.
Always keep the retainer and its case away from heat sources and direct sunlight, as elevated temperatures can lead to warping. Cleaning the case itself is also part of the maintenance routine; it should be washed with mild soap and water weekly to prevent it from becoming a reservoir for germs. Keep the case and retainer out of reach of pets, especially dogs, who are often attracted to the scent of the appliance and can easily destroy it.