How to Tell if You Need a Dental Filling: Signs and Symptoms

Cavities and damaged teeth are more common than you think, and most people will need at least one filling in their lifetime. Catching the signs early prevents more serious dental work later. If you’ve been thinking about your oral health and searching for dental fillings in Whitby, ON, it helps to know what symptoms to watch for and when it’s time to visit a dentist.

What Are Dental Fillings and Why Are They Needed?

Fillings are a way to repair teeth damaged by decay or injury. A dentist helps remove the decayed part of the tooth and fills the area with durable material to restore function and stop further damage.

Why fillings matter:

• Prevent cavities from spreading deeper
• Relieve pain and sensitivity
• Strengthen teeth for chewing and speaking
• Restore the tooth’s natural appearance

Without treatment, a small cavity can potentially turn into a root canal or even cause tooth loss.

Tooth Sensitivity to Hot, Cold, or Sweet Foods

One of the earliest signs of trouble is sensitivity. If sipping hot coffee, enjoying ice cream, or eating sweets triggers discomfort, your tooth may have decay.

What sensitivity feels like:

• Sharp twinge that fades after a few seconds
• Discomfort focused on one tooth
• Pain that often comes and goes depending on what you eat or drink

This symptom often means enamel has worn down, exposing sensitive inner layers.

Visible Holes or Dark Spots on Teeth

Sometimes cavities are easy to see. Look for holes, pits, or dark staining on the surface of your teeth.

Short listicle — Where you might notice changes:

• Chewing surfaces of molars
• Between teeth where floss catches
• Along the gumline

Even if the area doesn’t hurt, visible damage is a sign you should schedule an appointment for tooth fillings.

Persistent Toothache or Sharp Pain

Unlike sensitivity that comes and goes, constant tooth pain usually means the cavity has progressed. This can make it hard to chew, concentrate, or even sleep.

Signs the pain is more serious:

• Dull, throbbing ache that lingers
• Sharp pain when you put pressure on the tooth
• Pain radiating into the jaw or ear

At this stage, seeing a dentist quickly is key to stopping the decay before it worsens.

Chipped or Rough Edges on a Tooth

Decay isn’t the only reason for a filling. If you notice a tooth feels jagged when you run your tongue over it, or if you accidentally chip part of a tooth, a filling can restore its shape.

Why this matters:

• Rough edges can irritate the tongue or cheeks
• Chips can weaken the entire tooth
• Food particles may get trapped in the area, leading to decay

Small repairs with a filling are quick and prevent larger issues later.

Discomfort When Biting or Chewing

Pain when chewing is another warning sign. It may feel like pressure or sharp pain when you bite into food.

Common causes include:

• A cavity weakening the tooth structure
• A cracked tooth needing reinforcement
• Old fillings that are worn or broken

If chewing feels uncomfortable, it’s best to see a dentist in Whitby for an exam.

Changes in Tooth Colour or Appearance

Sometimes decay shows up as white, brown, or black discoloration. If one tooth looks different from the others, it may be developing a cavity.

Short listicle — Other changes to look for:

• Teeth that appear worn down
• Dark lines along the edges of fillings
• Dull or chalky enamel

Cosmetic changes often go hand in hand with functional issues, making fillings both protective and restorative.

Old or Damaged Fillings That Need Replacement

Fillings don’t last forever. Over time, they can wear out, crack, or loosen, leaving the tooth vulnerable again.

Signs your filling may need replacement:

• Sensitivity or some pain in a tooth with a filling
• Feeling rough edges with your tongue
• A filling that looks chipped or has fallen out

Replacing old fillings quickly avoids further damage or the need for more advanced treatments.

When to Visit a Whitby Dental Clinic

If you’re noticing any of the symptoms above, don’t wait. Scheduling an appointment at a Whitby dental clinic allows the dentist to examine your teeth, take X-rays if needed, and recommend the right solution. Many fillings can be done in a single visit, giving you relief right away.

Preventing Cavity Teeth and Tooth Pain

The best way to avoid cavities is to combine at-home care with professional cleanings.

Daily habits that help:

• Brush twice daily with fluoride toothpaste
• Floss to remove food particles between teeth
• Limit sugary snacks and drinks
• Rinse with water after meals

Routine exams also allow your dentist to spot early signs of cavity teeth, often before symptoms even appear.

Final Words

Tooth decay rarely improves on its own—it only gets worse with time. From sensitivity and visible spots to persistent tooth pain, the signs are there if you know what to watch for. Fillings stop the damage, relieve discomfort, and restore strength so you can smile and eat with confidence.

At Brooklin Family Dentistry, patients receive personalized care in a comfortable setting. If you’ve been searching for a solution, schedule your exam today and take the first step toward a healthier, pain-free smile.