A night guard is a custom-fitted acrylic or plastic tray worn over the teeth, typically during sleep. Its purpose is to create a physical barrier between the upper and lower teeth, protecting them from the damaging forces of bruxism, the involuntary clenching or grinding of teeth. Failing to clean and store the guard properly can lead to bacterial buildup, unpleasant odors, and a shortened lifespan. Proper care maintains the integrity of the material and ensures its effectiveness.
Daily Cleaning Routine
The daily cleaning process begins immediately after the night guard is removed to prevent saliva and plaque from hardening onto the surface. Rinse the device thoroughly under cool or lukewarm water to wash away loose debris and any sticky film. Avoid hot water, as the high temperature can cause the plastic material to warp and compromise the custom fit.
Gently scrub the guard using a soft-bristled toothbrush and a non-abrasive cleaning agent, such as mild liquid hand soap or dish detergent. Do not use traditional toothpaste; its abrasive particles can create microscopic scratches on the guard’s surface. These tiny grooves become ideal breeding grounds for bacteria, leading to discoloration and foul odors. After brushing, rinse the guard completely with water to remove any residual soap or cleaner before allowing it to dry.
Deep Cleaning and Sanitization
While daily brushing removes surface debris, a periodic deep clean is necessary to address calcification and stubborn bacterial accumulation that causes persistent odor. This sanitizing process should be performed once a week to maintain optimal hygiene.
An effective solution is mixing equal parts white vinegar and water, submerging the guard for approximately 15 to 30 minutes. The acetic acid in the vinegar helps break down mineral deposits and plaque buildup. Alternatively, use effervescent denture or retainer cleaning tablets according to the product’s instructions, typically requiring a 10 to 15-minute soak. Following any deep cleaning soak, the appliance must be rinsed completely under running water to remove all traces of the cleaning agent.
Essential Storage Practices
Proper storage is necessary to prevent the growth of harmful microorganisms and maintain the physical shape of the night guard. Before storing the device, allow it to air-dry completely on a clean, flat surface for 15 to 30 minutes. Storing a damp night guard in a closed container creates a moist environment that encourages the proliferation of bacteria and mold.
The dried guard should then be placed into a sturdy, clean, and ideally ventilated storage case. A ventilated case allows residual moisture to evaporate, further inhibiting microbial growth. Store the case in a cool, safe location away from extreme heat sources, such as direct sunlight, radiators, or the inside of a hot car, as high temperatures can permanently warp the plastic. This also protects the guard from being chewed by household pets.
Recognizing When Replacement is Needed
Even with diligent care, night guards have a finite lifespan and must be replaced when they show signs of material failure. Visible wear and tear, such as cracks, chips, holes, or significant thinning, indicate the guard is no longer providing adequate protection against grinding forces.
A change in fit is also a signal for replacement; if the guard feels loose, too tight, or causes discomfort, it may have warped or been affected by subtle shifts in the teeth. Persistent discoloration or an unpleasant odor that remains even after deep cleaning suggests a deep-seated bacterial contamination that cannot be fully resolved. Timely replacement is necessary to ensure the device remains effective.