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Adderall · Teeth grinding

Adderall and teeth grinding

Quick answer

Adderall and similar stimulants frequently cause teeth grinding (bruxism) and jaw clenching, especially when the medication is active. This usually shows up as worn-down enamel on the back teeth, fractured fillings, jaw soreness in the morning, or headaches in the temples. The grinding does not always stop when you stop the medication, but the damage can be slowed dramatically with a custom night guard, daytime awareness, and managing the dry mouth that compounds the wear.

The mechanism
Why stimulants cause teeth grinding

Adderall is a CNS stimulant that increases dopamine and norepinephrine. These neurotransmitters affect movement and muscle tone, including the muscles that move the jaw. The result is a baseline increase in jaw muscle activity, which often shows up as clenching during the day and grinding at night.

Stimulants also cause dry mouth. Saliva is the natural buffer that protects enamel, and without it, the mechanical wear from grinding does more damage per hour than it otherwise would. The combination is what makes stimulant-related bruxism particularly destructive: more grinding, on enamel with less protection.

Most patients do not notice the grinding itself, because it happens during sleep or as a subconscious daytime clench. What they notice is the downstream effects: shortening of the front teeth, flat wear facets on the molars, fractured restorations, jaw muscle tenderness on waking, and headaches that radiate from the temples.

Practical steps
What to do if Adderall is making you grind your teeth
  • Get a custom night guard. Drugstore boil-and-bite versions wear out fast and do not fit precisely. A custom guard distributes the grinding force and protects enamel and fillings.
  • Drink water regularly throughout the day. Dry mouth compounds the wear. Sugar-free gum or lozenges between meals also stimulate saliva.
  • Pay attention to daytime clenching. The fix is awareness: lips together, teeth apart. Your teeth should not be touching except briefly when you swallow.
  • Tell your dentist if you have any cracked fillings or sensitivity. Catching cracks early prevents larger repairs later.
  • Consider timing of your dose if your prescriber agrees. Some patients grind less at night when extended-release dosing is shifted earlier in the day.
Red flags
When to call your dentist
  • Jaw soreness in the morning that has become routine.
  • Headaches in the temples or sides of the head, especially on waking.
  • Teeth that are noticeably shorter than they used to be, or that look flat across the chewing surface.
  • A tooth that suddenly feels sharp or rough, which usually means a chip or crack.
  • A clicking, popping, or locking sensation in the jaw joint.
Common questions
What patients ask about Adderall and teeth grinding and jaw clenching.
Will my teeth stop grinding if I stop Adderall?
Often yes, but not always. Many patients see grinding reduce within a few weeks of stopping. Some continue to grind for other reasons (stress, sleep apnea, malocclusion). Do not stop Adderall on your own. The decision is made with your prescriber, and untreated ADHD has its own consequences that may outweigh the dental ones.
Does Vyvanse cause less teeth grinding than Adderall?
There is no strong evidence that Vyvanse causes meaningfully less grinding than Adderall. Both are stimulants and both raise the risk. Some patients report differences with extended-release vs immediate-release formulations, but this varies. Talk to your prescriber if grinding is a major problem.
How much does stimulant grinding damage teeth?
It depends on intensity and duration. Mild grinders may have minor wear over years. Heavy grinders can shorten front teeth visibly within months and fracture molars repeatedly. The damage is cumulative and largely permanent: ground-away enamel does not grow back. This is why a night guard early is much cheaper than restoration later.
How much does a custom night guard cost?
In Orange County, custom dental night guards typically run $400 to $700 without insurance. PPO plans often cover part of the cost when grinding is documented. A guard lasts several years with proper care, which makes the per-night cost very low compared to the cost of restoring worn or fractured teeth.
Why do my front teeth look shorter since I started Adderall?
Long-term clenching and grinding wear the enamel on the biting edges. The front teeth lose length first because they take more of the side-to-side grinding force. If this is happening to you, get a night guard fitted soon. Length lost cannot be regrown, but it can be restored with bonding or veneers later.
Talk to a dentist about your case
Bring your medication list to your visit.

General guidance is a starting point. Your specific dental plan depends on your medical history, your other medications, and what your mouth looks like in person. Schedule a consultation and we’ll walk through it.

Schedule a consultationCall (833) 598-3368

Reviewed by Dr. Isaac Sun, DDS.

This page is general information, not medical advice. Do not start, stop, or change any medication based on what you read here. Talk to your prescribing physician and your dentist about your specific situation.