TMD, Occlusion & Bruxism
Night guard (occlusal splint)
A custom splint worn over your teeth to protect them from grinding.
Type
Custom splint
When worn
During sleep
Protects
Teeth and jaw
Made from
Mould or scan
Overview
A night guard, or occlusal splint, is a custom-made cover for your upper or lower teeth. You wear it during sleep to cushion the teeth from grinding and clenching.
It does not stop you grinding, but it protects your teeth from wear and can ease pressure on the jaw muscles and joints. It is made from a mould or scan of your teeth.
What to know
- Custom cover worn over the teeth at night
- Protects teeth from grinding wear
- Can ease jaw muscle and joint strain
- Made from a mould or digital scan
- Needs regular cleaning and checks
Common questions
Does a night guard stop grinding?
No, but it protects your teeth and can reduce strain.
Upper or lower teeth?
Either can be used. Your dentist will choose what suits you.
How long does one last?
It varies with how hard you grind, often a few years.
Is a shop-bought guard as good?
Custom guards fit better and tend to last longer.
How do I look after it?
Clean it daily and store it dry, away from heat.
Having this treatment?
See your step-by-step journey →
Related topics
Bruxism (grinding & clenching)
Grinding or clenching your teeth, often during sleep and without knowing.
Caring for your night guard
Simple daily care keeps your night guard clean and lasting longer.
TMJ / jaw joint disorders
Pain or problems in the jaw joints and the muscles that move them.
Tooth wear
Gradual loss of tooth surface from grinding, acid or rubbing.
Dr Rick Iskandar · Reviewed June 2026