Does it hurt to have a filling?

by | 4 Mar 2026

Short answer: usually no, or just a little.
Modern fillings are way more comfortable than their reputation. 😌🦷

What it actually feels like

  • Before the filling:
    You’ll get local anesthetic, so the tooth and gum go numb. At TRUSTDental we can make the injections as pain-free as possible.
  • During:
    • Pressure and vibration, not pain
    • You might feel water spray or hear drilling noises (annoying, but not painful)
  • If the cavity is shallow:
    Sometimes it’s mild or painless even with minimal numbing.

After the filling

  • Normal:
    • Mild soreness or sensitivity to cold/pressure for a few days
  • Less common:
    • Jaw soreness from keeping your mouth open
  • Not normal:
    • Severe pain
    • Pain that worsens after a week
    • Sharp pain when biting (could mean the filling is too high)

When it might hurt more

  • Very deep cavity close to the nerve
  • Tooth already infected or inflamed
  • Anxiety (pain feels worse when you’re tense)

👉 Even then, dentists can give extra numbing or take breaks. You’re not stuck suffering.

Pro tip

Tell the dentist right away if you feel anything sharp — they want to know and can fix it instantly.