Why Does My Tooth Hurt When I Lay Down? Common Causes and What to Do Next

You settle into bed, hoping for peace, but a sudden jolt in your tooth ruins the moment. If you’ve ever thought, Why does my tooth hurt when I lay down, you’re not imagining things. This common issue affects many and often signals a deeper cause. Here’s what might be happening and how to ease the discomfort.

Common Causes of Tooth Pain When Lying Down

Pain gets amplified at night for one simple reason: blood flow increases to your head when you lie flat. That extra pressure can make a mild ache feel more intense. But that’s just part of the picture.

Here are some common causes that might explain why lying down triggers tooth pain:

1. Tooth Decay or Cavities

• A decaying tooth can hurt even when you’re upright, but it may flare up at night

• Cavities expose nerves that get sensitive to pressure and temperature

• Lying down increases blood circulation around those nerves
  

Don’t wait to get cavities filled early. Action saves you from bigger procedures later.

2. Gum Infections or Abscess

• An infection near the tooth root builds pressure

• Abscesses cause throbbing pain, often worse at night

• Swelling, a bad taste, or a small bump near the gums may signal infection
  

This situation can quickly turn urgent. If you notice these symptoms, seek emergency dentistry in Mesquite, TX.

3. Teeth Grinding (Bruxism)

• Many people grind their teeth at night without knowing

• Grinding wears down enamel and stresses the jaw

• You may wake with sore teeth, jaws, or headaches
  

A night guard can reduce damage and pain caused by grinding.

4. Sinus Pressure

• Upper teeth share space with your sinus cavities

• If you’re congested or have allergies, the pressure can push on the tooth roots

• Lying down worsens sinus swelling and, in turn, tooth sensitivity
  

5. Recent Dental Work

• A recent filling or crown can cause temporary pain

• Your tooth may still be adjusting

• If the pain persists for more than a week, follow up with your dentist
  

Sometimes, your bite may need a small adjustment after a procedure.

6. Impacted or Erupting Wisdom Teeth

• These teeth push against others, causing pressure and pain

• They often act up at night

• Pain can spread to the ears or jaw
  

7. Food Stuck Between Teeth

• Small pieces of food can get lodged and irritate the gums

• Trapped food increases pressure when you lie down

• Flossing before bed helps prevent this cause of discomfort
  

What to Do Immediately to Relieve Nighttime Tooth Pain

Tooth pain in the middle of the night can feel like an emergency, but there are a few things you can try right away to ease the discomfort.

Try These Tips Tonight:

• Elevate your head: Use two pillows to keep your head above your heart. This limits blood pressure near the painful tooth.

• Rinse with warm salt water: Reduces bacteria and calms inflammation

• Apply a cold compress: Place it on the outside of your cheek near the sore area for 15-minute intervals

• Take over-the-counter pain relief: Ibuprofen can help reduce swelling and pain

• Avoid cold, hot, or sweet foods before bed: These may trigger sensitive teeth
  

Avoid lying flat until the pain settles. Staying semi-upright gives your body a break from the added pressure.

When to See a Dentist

Temporary toothaches may go away on their own. But if pain continues for more than a day or two, especially if it worsens at night, it’s time for professional help.

Visit a dentist in Mesquite, TX if you experience:

• Pain that wakes you up several nights in a row

• Swelling in your face or jaw

• Fever or general discomfort

• Pus or bad taste in your mouth

• A cracked or broken tooth
  

The sooner you find care, the better your chances of saving the tooth and avoiding major procedures. Waiting can turn a small problem into a serious one fast.

Final Thoughts

Tooth pain at night can feel overwhelming, especially when all you want is rest. That sharp ache or deep throb isn’t just frustrating, it’s a signal your body needs help. Don’t wait for it to get worse. Clean Dental is here to find answers and bring lasting relief. From urgent care to preventive treatments, our team is ready to help you sleep peacefully again.

Don’t let another night slip away in pain. Call us today to schedule your visit and take the first step toward a healthier, pain-free smile.