A night guard is a removable plastic appliance designed to fit over the upper or lower teeth. Its primary purpose is to create a physical barrier that protects the teeth, jaw joint, and surrounding muscles from the damaging forces of bruxism (teeth grinding or clenching, often while sleeping). While night guards are highly effective at preventing tooth wear, fractures, and jaw pain, concerns about comfort often cause people to hesitate. Understanding what to expect regarding fit and adjustment can help users commit to this protective therapy.
The Initial Adjustment Period
Experiencing temporary discomfort is a normal part of acclimating to a night guard. The mouth and jaw muscles must adapt to the presence of a foreign object and the slight change in the bite’s resting position. This initial adjustment period usually lasts between one and two weeks.
During the first few nights, users commonly notice mild soreness or pressure in the teeth, gums, or jaw joints as the muscles relax. The guard may trigger increased saliva production, leading to temporary drooling until the body adjusts. Some individuals might also experience a minor speech impediment or a heightened gag reflex, especially if the guard extends far back in the mouth. Consistent use is the best way to manage these temporary symptoms, and wearing the guard for short periods during the day can speed up adaptation.
Custom Fit Versus Over-the-Counter Options
The long-term comfort of a night guard is determined primarily by its fit, distinguishing custom-made from over-the-counter (OTC) options. A custom guard is fabricated from precise dental impressions taken by a professional, ensuring it conforms exactly to the contours of the teeth. This precise, snug fit minimizes bulkiness, making the device feel less intrusive and more comfortable for nightly wear.
In contrast, OTC options, such as boil-and-bite or pre-formed guards, are less specific to the individual’s oral anatomy. Boil-and-bite guards are often made from softer, less durable material and tend to be bulkier than professional appliances. This non-specific fit can create persistent discomfort by introducing pressure points or rubbing against the gums and soft tissues. A poorly fitting OTC guard may require the wearer to clench their jaw to keep it in place, counteracting the intended therapeutic effect. Choosing a custom-fitted device, which aligns the bite precisely, is the most effective way to ensure long-term comfort and prevent issues like persistent jaw pain.
Practical Tips for Long-Term Comfort
Maintaining comfort after the initial adjustment period requires consistent hygiene and careful handling of the night guard. Since the guard sits in a moist environment, it must be cleaned daily to prevent the buildup of plaque, bacteria, and odor that can lead to gum irritation.
After each use, the appliance should be cleaned using the following steps:
- Rinse the guard thoroughly with water.
- Gently brush the appliance with a soft toothbrush.
- Use a mild, non-abrasive soap or cleaner.
- Avoid using abrasive toothpaste, which can scratch the material.
Proper storage is necessary to preserve the precise fit and prevent warping, a major cause of discomfort. Night guards should always be stored in a clean, ventilated case when not in use, allowing them to air-dry completely to prevent bacterial growth. It is important to keep the guard away from excessive heat sources, such as direct sunlight or hot cars, as high temperatures can deform the plastic material and ruin the fit.
If the guard feels loose, tight, or begins causing new sore spots after the adjustment period, or if the material shows signs of significant wear or cracking, an adjustment or replacement is needed. Consulting a dentist ensures the appliance continues to provide effective protection without causing new issues.