My teeth are worn but I have no pain. Does it still matter?

Wear is usually painless until it reaches dentine or the tooth structure becomes compromised, so absence of pain is not reassurance. What matters is whether it is progressing. Photographs and models compared over time answer that far better than a single examination.

Will a night guard stop the wear?

A well-designed custom appliance protects the teeth effectively, which is worth having. It does not stop the grinding itself, and it does not address an airway cause behind it. Treat it as protection while the cause is investigated rather than as the treatment.

How much wear is normal for my age?

Some wear accumulates over a lifetime and a degree of flattening in later decades is unremarkable. Wear that is obvious before middle age, that is progressing visibly over a few years, or that is accompanied by muscle pain, morning headache or joint symptoms is not, and is worth investigating.

Worn Teeth

Worn teeth are one of the few visible records of what happens while you are asleep. The pattern of wear is genuinely informative — different causes leave different signatures — and grinding wear in particular is worth reading as a possible pointer toward the airway rather than treated purely as damage to be repaired.

Reading the pattern

Attrition from grinding produces flat, polished facets where opposing teeth meet, typically matching precisely between upper and lower when the jaw is moved into that position, with the canine tips and incisal edges flattened. Erosion from acid looks different — cupped hollows in the biting surfaces, thinning that leaves fillings standing proud, and a smooth glazed appearance including on surfaces that never contact. Abrasion from brushing sits at the gum line as notching. The distinction matters because the causes and the treatments have nothing in common.

Why grinding wear raises an airway question

Sleep bruxism occurs in bursts of masticatory muscle activity that cluster around arousals from lighter sleep, and a large share of those episodes follow obstructive respiratory events. The proposed mechanism is straightforward: the arousal that reopens a collapsing airway also restores muscle tone, and jaw movement is part of that response. This is why significant grinding wear, particularly alongside morning headache, unrefreshing sleep or a scalloped tongue border, is a reasonable prompt to ask about breathing rather than simply to fit a guard.

Acid and grinding together are the fastest destroyer

The two accelerate each other badly. Acid softens the enamel surface; grinding then removes the softened layer mechanically, and the cycle repeats nightly. Nocturnal reflux is common in people with obstructive sleep apnea, because the pressure changes of obstructed breathing promote acid movement into the oesophagus. Where wear shows both signatures, treating the grinding alone will not stop the progression, and reflux management belongs in the plan.

What to do about worn teeth

Two things, in order. First stabilise the cause — protect the teeth with a properly designed appliance, evaluate the airway where the picture suggests it, and address reflux if present. Only then consider restoring the lost tooth structure, because restorations placed into an active, unaddressed grinding habit fail, and rebuilding worn teeth is substantial work to have to repeat. Where wear has progressed far enough to change facial height or bite stability, that is the territory of the reconstruction silo.

Common questions

My teeth are worn but I have no pain. Does it still matter?: Wear is usually painless until it reaches dentine or the tooth structure becomes compromised, so absence of pain is not reassurance. What matters is whether it is progressing. Photographs and models compared over time answer that far better than a single examination.
Will a night guard stop the wear?: A well-designed custom appliance protects the teeth effectively, which is worth having. It does not stop the grinding itself, and it does not address an airway cause behind it. Treat it as protection while the cause is investigated rather than as the treatment.
How much wear is normal for my age?: Some wear accumulates over a lifetime and a degree of flattening in later decades is unremarkable. Wear that is obvious before middle age, that is progressing visibly over a few years, or that is accompanied by muscle pain, morning headache or joint symptoms is not, and is worth investigating.

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