Will a mouthguard stop the grinding?
No — it protects your teeth from the damage. That is worth having, but it does not address why you are grinding, and people are often disappointed when the jaw ache continues.
Why do I wake up with a headache?
Because the jaw muscles have been working all night. Morning headache around the temples with jaw tightness is the classic pattern, and it is frequently investigated as a headache disorder first.
Could my antidepressant be causing it?
Possibly — SSRIs and SNRIs are a recognised cause and this is commonly missed. If the grinding started within weeks of starting or increasing one, raise it. It can usually be managed rather than endured.
What has sleep apnoea got to do with it?
More than most people realise. Grinding often clusters around the arousals that follow breathing pauses. Treating the apnoea frequently improves the bruxism — and matters far more for your heart and blood pressure.
Is it caused by my bite?
Much less than was once believed. Stress, sleep and medication are the main drivers, and reshaping teeth to "correct" the bite is not supported as a treatment.
Does Botox work?
It can reduce muscle bulk and pain for some people, but the evidence is limited, it does not treat the cause, and it needs repeating. Not a first step.
Will my teeth be permanently damaged?
Enamel does not grow back, so wear is permanent — which is why protecting them early matters. See a dentist rather than waiting until teeth are sensitive or chipping.