If you’ve been told you need a cavity filling, you’re probably wondering: “How long does it take to fill a cavity?” The good news is, the procedure is quick and straightforward. In most cases, a simple cavity filling takes 20 to 60 minutes, depending on the severity and location of the cavity.
In this article, we’ll break down everything you need to know about cavity filling time, the procedure, pain levels, and recovery. Let’s dive in!
What Factors Affect Cavity Filling Time?
The exact time to fill a cavity depends on several factors:
- Size & Location of the Cavity
- Small cavities take 20-30 minutes.
- Larger or multiple cavities may require 45-60 minutes.
- Hard-to-reach back teeth take longer than front teeth.
- Type of Filling Material
- Composite (tooth-colored) fillings – 30-40 minutes (requires layering & curing).
- Amalgam (silver) fillings – 20-30 minutes (hardens faster).
- Gold or ceramic fillings – May require multiple visits (longer process).
- Dentist’s Experience & Technique
- Experienced dentists work faster with precision.
- Laser fillings may reduce time compared to traditional drills.
- Patient Cooperation & Comfort
- Nervous patients may need breaks, extending the time.
- Numbing gel and anesthesia add a few extra minutes.
Step-by-Step: What Happens During a Cavity Filling?
Understanding the cavity filling procedure can ease anxiety. Here’s what to expect:
1. Numbing the Area (5-10 mins)
- The dentist applies a numbing gel, followed by local anesthesia.
- You’ll wait a few minutes until the area is completely numb.
2. Removing Decay (10-20 mins)
- The dentist drills out the decayed part of the tooth.
- For laser fillings, this step is quicker and quieter.
3. Cleaning & Preparing the Tooth (5-10 mins)
- The cavity is cleaned to remove bacteria.
- An adhesive is applied for better filling bonding.
4. Filling the Cavity (10-20 mins)
- The dentist fills the hole with composite, amalgam, or another material.
- A UV light hardens composite fillings instantly.
5. Polishing & Bite Check (5 mins)
- Excess filling material is trimmed.
- The dentist ensures your bite feels natural.
Total Time: 20-60 minutes (average 30-45 mins for one cavity).
Does Filling a Cavity Hurt?
Many patients worry about pain, but modern dentistry makes the process virtually painless:
- You’ll feel slight pressure but no sharp pain (thanks to anesthesia).
- Some sensitivity post-filling is normal but fades in 1-2 days.
- Sedation options are available for anxious patients.
How Long Before You Can Eat After a Filling?
- Composite fillings: Eat immediately (hardens right away).
- Amalgam fillings: Wait 24 hours for full hardening.
- Avoid very hot, cold, or sticky foods for a few hours.
How Long Do Cavity Fillings Last?
- Composite fillings: 5-10 years
- Amalgam fillings: 10-15 years
- Gold/ceramic fillings: 15+ years
Regular dental checkups help extend their lifespan!
FAQs About Cavity Fillings
Q: Can I drive after a cavity filling?
A: Yes, unless you’ve had sedation (then arrange a ride).
Q: Why does my tooth hurt after a filling?
A: Mild sensitivity is normal. Persistent pain? See your dentist!
Q: How much does a cavity filling cost?
A: Typically $100-$400 (varies by material & location).