How Does a Bite Splint Help with Teeth Grinding?

Teeth grinding, also known as bruxism, is a common issue that many people experience without realising it. It often happens during sleep, which means many patients only discover the problem after noticing worn teeth, jaw soreness, or headaches.A bite splint dental lab in New Zealand plays an important role in fabricating custom devices that dentists may recommend as part of managing this condition.

If you have been told by your dentist that you grind your teeth, you may be wondering how a bite splint actually works and whether it can help. This article explains what bite splints do, how they are made, and what to expect from using one.

This article is provided by IDD Dental Lab, a dental laboratory based in New Zealand that manufactures custom dental appliances, including bite splints, for dental practices and their patients. While we work closely with dentists to craft devices tailored to each patient's bite, we do not provide clinical diagnosis or treatment advice. 

The information here is intended for general educational purposes only. If you're experiencing symptoms such as jaw pain, headaches, or tooth wear, please speak with your dentist, who can assess your individual situation and determine whether a bite splint or other treatment may be appropriate for you. 

What Is Teeth Grinding (Bruxism)?

Bruxism refers to the involuntary clenching or grinding of teeth. It can occur during the day, but it is most common at night while sleeping.

Many people are unaware they grind their teeth until a partner mentions the noise, or a dentist notices signs during a check-up. Common signs include flattened tooth surfaces, jaw tightness, and morning headaches. 

When bruxism is identified, a dentist may recommend a custom mouthguard made by a bite splint dental lab in New Zealand to help protect the teeth from further wear.

Stress, anxiety, sleep disorders, and an uneven bite are often linked to bruxism. While the exact cause can vary from person to person, the effects on the teeth and jaw can be similar.

What Is a Bite Splint?

A bite splint, sometimes called a night guard or occlusal splint, is a custom-made device worn over the teeth. It is typically made from a durable plastic material and designed to fit comfortably over the upper or lower teeth.

The splint creates a smooth surface between the upper and lower teeth, which helps reduce the direct contact that occurs during grinding. This may help ease pressure on the jaw joint and reduce wear on the natural teeth.

Custom-made splints are designed to fit the unique shape of each patient's mouth, based on an impression or scan taken by your dentist.

How Does a Bite Splint Help with Teeth Grinding?

Protecting Tooth Enamel

One of the main roles of a bite splint is to act as a barrier between the upper and lower teeth. This may help reduce the gradual wearing down of enamel that can occur from repeated grinding.

Enamel does not regenerate once it is worn away, so reducing further wear can be an important part of long-term oral health.

Easing Jaw Muscle Tension

Grinding and clenching place repeated strain on the jaw muscles and the temporomandibular joint (TMJ). A bite splint may help by spreading the bite force more evenly, which can ease some of this tension.

Some patients report feeling less jaw tightness or discomfort after consistent use, although individual experiences may vary depending on the cause and severity of bruxism.

Reducing Morning Headaches

Tension-type headaches in the morning are sometimes linked to nighttime grinding. By helping to reduce the intensity of clenching during sleep, a bite splint may contribute to fewer headaches for some patients.

As outcomes vary depending on individual circumstances, your dentist can discuss whether this may be relevant to your situation.

How Are Custom Bite Splints Made?

Creating a custom bite splint involves several careful steps to ensure a precise fit.

Step 1: Dental Impressions or Digital Scans

Your dentist will take an impression or digital scan of your teeth. This creates an accurate model of your bite, which is essential for designing a splint that fits properly.

Step 2: Laboratory Fabrication

The impression or scan is sent to a dental laboratory, where skilled technicians design and fabricate the splint using specialised materials and equipment. This stage helps the splint match the contours of your teeth and bite as closely as possible. 

Step 3: Fitting and Adjustments

Once the splint is returned to your dentist, it is fitted to your mouth. Adjustments may be made to ensure it sits comfortably and functions as intended.

A well-fitted splint should feel secure without being overly tight, and your dentist will guide you on how to wear and care for it.

Caring for Your Bite Splint

Looking after your bite splint helps it last longer and remain hygienic. Rinse the splint with cool water before and after each use. Avoid hot water, as this can warp the material. Brush it gently with a soft toothbrush, separate from your regular toothbrush, using a non-abrasive cleaner.

Store the splint in its case when not in use, away from direct sunlight or heat, which can cause distortion. Splints made by dental labs in NZ are designed to closely match your individual bite, so keeping the shape intact helps maintain that fit over time. Bring the splint to your dental check-ups so your dentist can assess its fit and condition over time.

Frequently Asked Questions

How long does it take to get used to wearing a bite splint?

Most people need a short adjustment period when they first start wearing a bite splint. It is common to feel slightly unusual in the mouth for the first few nights.

This typically becomes less noticeable as the mouth adjusts. If discomfort continues beyond a couple of weeks, it is a good idea to mention this to your dentist for an assessment.

Can a bite splint stop teeth grinding completely?

A bite splint is designed to protect the teeth and jaw from the effects of grinding, rather than stop the grinding itself. Many underlying causes, such as stress or sleep patterns, may need to be addressed separately.

Your dentist can discuss a personalised approach based on your specific situation and contributing factors.

How often should a bite splint be replaced?

The lifespan of a bite splint depends on how often it is worn and the intensity of grinding. Some splints can last a long time with proper care, while others may need replacing sooner depending on wear. 

Regular dental check-ups allow your dentist to monitor the condition of your splint and recommend replacement if needed.

Is a bite splint suitable for everyone who grinds their teeth?

Suitability depends on individual factors such as the severity of grinding, oral health, and overall dental structure. A dentist will assess your situation during a consultation to determine whether a bite splint is an appropriate option for you.

Conclusion

Teeth grinding can affect your enamel, jaw comfort, and overall oral health over time. A custom-made bite splint may help protect your teeth and ease some of the strain associated with bruxism, though outcomes can vary depending on individual circumstances.

If you think you might be grinding your teeth, speaking with your dentist is a good first step. They can assess your bite and discuss whether a custom splint, made in partnership with a trusted lab such as IDD Dental Lab, could form part of your personalised treatment plan.