Blog Hero

How Long Can You Leave a Cavity Untreated?

Book Appointment

That sharp twinge when you bite down on something sweet might seem like a minor annoyance you can ignore. Maybe you’re hoping it’ll just go away on its own, or perhaps you’re trying to avoid going to the dentist for as long as you can.

You shouldn’t leave a cavity untreated for more than a few months, because the decay can spread deeper into your tooth, turning a simple filling into an expensive root canal or even tooth loss. At Country Hills Dental, we don’t want you to feel like you have to put off going to the dentist, which is why we go the extra step to provide comfortable care. 

What Happens When You Don’t Treat a Cavity

Cavities don’t heal themselves like a cut on your skin. The bacteria that caused the initial damage will keep eating away at your tooth.

Here’s what happens inside your mouth when you ignore a cavity:

  • It can grow larger over time
  • Bacteria may spread deeper into your tooth
  • Pain and sensitivity can increase gradually
  • The damage can become worse, even irreversible

Think of it like a small leak in your roof. What starts as a few drops during heavy rain can eventually damage your entire ceiling if you don’t take steps to fix it.

Timeline: How Fast Cavities Progress

The speed of cavity progression can vary widely from person to person, but here’s what typically happens when you leave decay untreated.

First Few Months

Surface enamel (the hard outer layer of your teeth) continues to weaken as acid left by bacteria attacks the tooth structure. You might notice occasional sensitivity to sweet foods or cold drinks. The cavity is still small enough that a simple filling can fix the problem.

6 Months to 1 Year

In some cases, a cavity may get through the enamel and reach the softer dentin layer underneath. Your tooth becomes more sensitive to temperature changes. The discomfort might come and go, making you think the problem is getting better when it’s actually getting worse.

1 to 2 Years

Depending on the patient, infection can reach the tooth’s nerve, causing severe pain and possibly requiring a root canal treatment. In some cases, you might experience a throbbing discomfort that wakes you up at night or makes it hard to concentrate during the day.

Beyond 2 Years

If the damage has become too extensive to repair, you may be looking at tooth replacement options like implants or bridges, which usually cost significantly more than a filling.

Warning Signs Your Cavity Needs Immediate Attention

Some symptoms mean you can’t wait any longer for treatment. These signs indicate the decay has progressed beyond the early stages:

  • Sharp pain when biting down
  • Throbbing pain that keeps you awake
  • Sensitivity to hot or cold that lingers
  • Visible holes or dark spots on teeth
  • Swelling in your gums or face
  • Bad taste or smell in your mouth

Facial swelling is particularly serious because it means the infection has spread beyond your tooth, which can become a medical emergency if left untreated. If you’re experiencing sudden tooth pain, don’t wait to seek professional care.

Why Waiting Makes Treatment More Expensive & Complex

The cost difference between early and late treatment can be substantial. Here’s how waiting affects your wallet and your comfort.

Simple Filling Compared to a Root Canal

Early treatment usually requires only a basic filling, while advanced decay can require root canal therapy and a crown. A filling might take 1 appointment, but root canal treatment typically requires multiple visits and costs several times more.

Tooth Extraction & Replacement Costs

Severely damaged teeth may require removal and replacement with implants or bridges. Not only will this cost more, but you’ll also likely need to take time off work for multiple appointments. When faced with tooth replacement, prevention is almost always more affordable than restoration.

Impact on Surrounding Teeth

Untreated cavities can affect neighbouring teeth and gum health. Bacteria from 1 infected tooth can increase the risk of cavities in other areas, creating multiple problems that need treatment.

How Your Dentist Can Help

Dental care can help catch problems early and provide treatment options that fit your situation.

Early Detection During Regular Checkups

Professional cleanings and exams can help catch cavities before they cause pain. The dental team can spot decay in its earliest stages using special tools and X-rays that show problems you can’t see in your mirror. Regular dental checkups, along with daily brushing and flossing, are your first line of defence against the progression of cavities.

Treatment Options Based on Cavity Size

Our dental team offers fillings, crowns, and root canal therapy depending on your needs. They’ll explain each option and help you understand what may work for your specific situation and budget.

Emergency Care for Severe Pain

Same-day appointments are available when cavities cause unbearable discomfort. You don’t have to suffer through sleepless nights or rely on pain medication when professional help is available. We provide emergency dental services that can help give you the relief you need.

Healthy Teeth with Your Dentist in NE Calgary

There’s no need to let a small cavity turn into a bigger problem. Our team at Country Hills Dental understands that dental care can feel overwhelming, but we are here to help you get the treatment you need before your situation becomes more complex. Schedule your appointment and protect your smile.

Check Out What Our
Patients Have to Say

Come Visit Us

Our Address

#707 500 Country Hills Blvd NE
Calgary, AB T3K 4Y7

Contact Information

instagram facebook facebook2 pinterest twitter google-plus google linkedin2 yelp youtube phone location calendar share2 link star-full star star-half chevron-right chevron-left chevron-down chevron-up envelope fax