Grinding or Clenching Teeth at Night

Posted on May 12, 2026

by

Bellevue Overlake Dental

Why It Happens and Why a Custom Night Guard Matters

Waking up with a sore jaw, tight temples, or sensitive teeth can be a sign you’re grinding or clenching at night (bruxism). Many people do it without realizing—until they notice headaches, worn teeth, or damaged dental work. A professional custom night guard helps protect your smile while you sleep.

What grinding and clenching can do to your teeth

Nighttime clenching puts heavy force on your teeth and restorations. Over time, it can:

  • Wear down enamel and increase tooth sensitivity
  • Cause chips or small cracks (often leading to repeat repairs)
  • Strain the jaw joints and muscles, triggering TMJ-like discomfort

Common signs you may be grinding at night

You may be clenching or grinding if you notice:

  • Morning jaw soreness or temple headaches
  • Sensitive teeth—especially with cold drinks
  • Flattened, worn, or chipped teeth (or dental work that keeps breaking)

Why a professional custom night guard is worth it

Over-the-counter guards can help temporarily, but custom guards are designed for your exact bite. Dentists prefer custom night guards because they:

  • Fit comfortably and stay in place (so you actually wear them)
  • Distribute forces evenly to protect teeth and reduce jaw strain
  • Are durable and adjustable, especially if you have crowns, veneers, or implants

What causes nighttime bruxism

Grinding is often linked to stress and sleep factors. Common contributors include:

  • Stress or anxiety
  • Poor sleep, snoring, or possible sleep apnea
  • Caffeine or alcohol close to bedtime

How Bellevue Overlake Dental can help

At Bellevue Overlake Dental, we check for wear patterns, evaluate your bite, and recommend the right type of night guard. We’ll take precise impressions or scans and have a custom guard made to protect your teeth comfortably night after night.

Protect Your Smile While You Sleep

Grinding and clenching can quietly cause sensitivity, cracks, and jaw discomfort over time. A professional custom night guard is one of the simplest ways to prevent costly damage and protect your restorations. If you suspect bruxism, Bellevue Overlake Dental can confirm the signs and fit you with a guard made specifically for your bite.