An orthodontic retainer is a custom-made device worn in the mouth to keep teeth in their new, aligned position after orthodontic treatment. Its purpose is to prevent teeth from shifting back to their original places, a phenomenon known as relapse. Many people wonder if biting down on their retainer is permissible.
Why Biting Down Is Not Recommended
Biting down on a retainer is not recommended due to several negative consequences for both the retainer and the teeth. Retainers are not designed to withstand biting forces. Applying such pressure can cause the retainer to crack, warp, or break, compromising its ability to hold teeth in position.
Beyond damaging the retainer, biting down can also harm your teeth. This action places undue stress on individual teeth, potentially leading to unwanted shifting, root damage, or accelerated enamel wear. Continuous biting can misalign teeth by applying uneven pressure, negating prior orthodontic treatment. It can also cause immediate discomfort or pain in the teeth, gums, and jaw.
How Different Retainers Are Affected
The impact of biting down varies depending on the retainer type. Hawley retainers, which combine acrylic and metal wires, can experience specific issues. The acrylic may crack under pressure, and the metal wire can bend or distort, leading to an improper fit and reduced effectiveness.
Clear plastic retainers, often called Essix retainers, are particularly susceptible to damage from biting. These thin trays can crack or develop stress lines when subjected to biting forces. Such damage makes the retainer ineffective at holding teeth in place and may cause sharp edges that irritate the mouth.
Fixed or permanent retainers, thin wires bonded to the back of teeth, can also be affected. Biting down on hard foods can cause the bonding adhesive to fail or the wire to bend or break, requiring professional repair.
What to Do If You’re Biting Down
If you frequently bite down on your retainer, address the habit promptly. This behavior can stem from stress, discomfort with the retainer’s fit, or an unconscious habit. Consult your orthodontist, as they can assess the retainer for damage, evaluate its fit, and offer tailored solutions.
Your orthodontist can determine if the retainer needs adjustment or replacement, ensuring it functions effectively. If stress contributes to the biting habit, adopting stress management techniques like mindfulness exercises, regular physical activity, or meditation may be helpful. Avoid attempting to adjust or repair the retainer on your own, as this can worsen damage or compromise its fit.
Maintaining Your Retainer
Proper care ensures the longevity and effectiveness of your retainer. Daily cleaning prevents bacteria and plaque buildup, which can lead to bad breath, tooth decay, or gum disease. Gently brush your retainer with a soft-bristled toothbrush and mild soap or non-abrasive toothpaste, rinsing with lukewarm water after each use. Soaking it in a cleaning solution once or twice a week helps.
When not wearing your retainer, always store it in its protective case. This prevents damage, loss, and contamination. Avoid exposing your retainer to hot water or high temperatures, as this can cause it to warp and lose its custom shape. Consistently following your orthodontist’s prescribed wearing schedule and attending regular check-ups helps ensure the retainer maintains your teeth’s alignment.