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BruxismFunctional DentistryComprehensive Care

Bruxism: What Your Dentist Might Not Be Telling You About Teeth Grinding

Bruxism is one of the most under-diagnosed and under-treated conditions in dentistry. It silently destroys tooth structure, fails restorations, and connects to far more than most patients realize. Here is the complete picture.

Dra. Lina Roldán, PhD

Dra. Lina Roldán, PhD

DDS · Orthodontist · PhD

You come in for a cleaning. The dentist mentions that your teeth are looking a bit worn. They offer to make you a night guard. You say yes, spend $400–800, and the problem is considered managed.

Six months later, you crack a filling. A year after that, a ceramic restoration chips. You feel tension in your jaw when you wake up. You have headaches you can’t quite explain.

This is the bruxism story I hear most often. And it is a story about under-treatment masquerading as treatment.

What Bruxism Actually Is

Bruxism is habitual, repetitive, involuntary grinding or clenching of the teeth. It occurs most commonly during sleep — sleep bruxism — though awake bruxism (clenching during daytime stress) is also common and often coexists.

The forces generated during bruxism are extraordinary. While normal chewing generates forces of 20–40 pounds per square inch, parafunctional grinding can reach 250 pounds or more — sustained over minutes or hours of sleep. No dental material was designed to withstand this.

The Consequences Nobody Maps Out

What happens to a patient with moderate-to-severe bruxism who is not adequately treated is entirely predictable:

Tooth structure loss. Enamel is irreplaceable. Once worn, it does not regenerate. Patients who grind without intervention lose millimeters of enamel over years — millimeters that represent the height of their bite, the shape of their teeth, the foundation of any future aesthetic work.

Restoration failure. Ceramic veneers, composite bonding, porcelain crowns — all of these have a fracture resistance appropriate to normal occlusal forces. Bruxism patients who receive aesthetic work without having their bruxism addressed properly will break their restorations. Repeatedly.

TMJ dysfunction. The temporomandibular joint absorbs enormous loads during parafunctional activity. Over time, this can contribute to disc displacement, joint pain, clicking, and limited opening — a condition that becomes significantly more complex to treat the longer it progresses.

Headaches and facial pain. The masseter and temporalis muscles — the primary muscles of mastication — are working overtime in a bruxism patient. Chronic muscle fatigue in these areas produces tension headaches, jaw soreness, and facial pain that patients often do not connect to their teeth.

Sleep disruption. Bruxism is associated with sleep disturbances, and in some patients, it is connected to obstructive sleep apnea — a relationship that has important implications for overall health.

The Night Guard: Necessary But Not Sufficient

A well-made, properly adjusted night guard is a valuable protective appliance. I want to be clear about that.

But it is a protective device, not a cure. It creates a sacrificial surface between the upper and lower teeth so that the guard wears instead of the enamel. This is important and genuinely protective.

What it does not do:

  • Reduce the muscle hyperactivity that drives the grinding
  • Address the occlusal factors that may be contributing to the pattern
  • Treat any joint dysfunction that has already developed
  • Replace lost tooth structure

A comprehensive approach to bruxism considers all of these dimensions.

The Occlusal Component

One of the most frequently missed contributions to bruxism is occlusal instability — situations where the way your teeth meet when you bite down is not harmonious with the natural position of your jaw joints.

When the teeth and the joints are not coordinating properly, the neuromuscular system can produce grinding as part of a search for a stable rest position. Identifying and addressing occlusal discrepancies is a meaningful part of comprehensive bruxism management — not a replacement for a splint, but a component of a more complete solution.

Stress, Sleep, and Biology

Bruxism has a significant relationship with psychological stress, anxiety, and sleep quality. This does not mean it is “just stress” or that it is not a dental problem — it means that the most complete management includes awareness of these factors and, where relevant, coordination with appropriate health professionals.

A dentist who treats bruxism as a hardware problem with a hardware solution is not wrong. But they may be leaving a great deal of the picture unaddressed.

What to Do If You Think You Grind

First: get an evaluation. Many patients have significant bruxism and do not know it because their symptoms — worn facets, night-time clenching, muscle tenderness — are subtle and easily attributed to other causes.

Second: if you are considering any aesthetic dental work — veneers, bonding, crowns — make absolutely certain that your bruxism is being actively managed as part of the treatment plan. Aesthetic work in an uncontrolled bruxism patient is work that will need to be redone.

Third: ask about occlusal analysis. A comprehensive bite evaluation, sometimes with a mounted study model, is the appropriate diagnostic step when the severity of bruxism is significant.

You deserve treatment that understands why your teeth are wearing — not just a device that slows the rate of wear.


We treat functional and aesthetic dentistry as inseparable. If you have been told you grind your teeth and want a more complete picture of what that means for your oral health and your treatment options, we would be glad to see you.

Dra. Lina Roldán, PhD

Dra. Lina Roldán, PhD

Author

DDS · Specialist in Orthodontics · PhD Engineering & Biomaterials · Postdoc, Temple University

With over 15 years of clinical practice and a doctorate in engineering and biomaterials, Dra. Lina Roldán approaches dentistry as a systems problem — not a structural one. She writes to help patients and clinicians understand the deeper thinking behind excellent dental care.

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