DENTAL FILLINGS IN SINGAPORE: WHAT PATIENTS SHOULD REALLY KNOW ABOUT TOOTH RESTORATION
- Dr. Chrissie Lam
- 2 minutes ago
- 4 min read

When patients hear they need a dental filling, it often sounds like a simple fix. But the reality is more complex. At our dental clinic in Singapore, we believe it’s important for patients to fully understand what a filling is—and what it isn’t—so they can make informed decisions about their oral health.
What Is a Dental Filling?
A dental filling is a treatment used to restore a tooth that has been damaged by decay, wear, or minor fractures. It involves removing the compromised tooth structure and filling the space with a material that helps restore its shape and function.
But here's the key: a filling doesn’t “cure” decay—it replaces the part of the tooth that’s been lost. Think of it as rebuilding a damaged wall: if the foundation is still strong, patching it up can work. But if the damage is too extensive, a patch alone may not last.

When Is a Filling Needed?
Fillings are commonly recommended when:
A cavity (dental decay) has caused localized damage
A tooth has small fractures or wear
Part of the tooth structure is missing or weakened
Decay is a bacterial process that leads to the softening and breakdown of tooth structure. If left untreated, it can progress deeper and infect the nerve of the tooth. The goal of a filling is to stop this progression—but timing matters. The earlier the intervention, the better the chance to preserve the natural tooth.

Why You Might Need a Filling Even If It Doesn’t Hurt
Many patients are surprised when a dentist tells them they have a cavity—but they haven’t felt any pain. That’s because the outer layer of the tooth, the enamel, has no nerve endings. You won’t feel anything until the decay reaches the dentin, the inner layer that connects to the nerve. And by the time pain starts, the decay may be deep enough to require more than just a filling—possibly a root canal treatment.
Pain is not a reliable indicator of how serious the problem is. Some people have higher pain thresholds and may not feel anything until it's too late. That’s why regular dental check-ups and early detection are so important.

What Is Decay Control?
Before placing a filling, it’s critical to understand the cause and progression of the decay. In some cases, patients may undergo a decay control phase—this involves temporary restorations, hygiene improvements, dietary advice, or fluoride treatments to stabilise the environment in the mouth.
Without controlling the underlying cause, a filling is just a temporary fix.
Why Not Just Do a Filling?
Sometimes, patients wonder why a dentist recommends a crown or another type of restoration instead of a simple filling.
Here’s why:
When decay or damage affects a large portion of the tooth—especially the areas that support the tooth’s function, such as the cusps—placing a filling alone may not be structurally reliable. Fillings rely on the remaining tooth for support. If that foundation is weak, the filling is likely to crack, leak, or fall out.
In those cases, a crown provides better long-term stability because it covers and protects the entire tooth structure.

When Is Local Anesthesia Needed?
Local anesthesia is commonly used during fillings, but not always.
You may need anesthesia if:
The cavity is deep or close to the nerve
The decay has reached the dentin (which contains nerve endings)
You're experiencing sensitivity or discomfort in the area
You’re anxious or have a low pain threshold
Even if you don’t feel pain before the appointment, drilling into the tooth can sometimes trigger nerve responses, especially if the decay is close to the pulp. In these cases, anesthesia helps ensure comfort throughout the procedure.
Is a Filling a Simple Treatment?
On the surface, it may seem straightforward. But placing a filling requires precision, moisture control, and proper bonding to ensure the restoration lasts and doesn’t fail prematurely.
Moreover, every time we intervene in a tooth—drilling, shaping, or restoring—we are changing the tooth permanently. That’s why dentists are cautious and selective in recommending when and how to proceed.

Why Do Fillings Hurt Afterwards?
It’s actually normal to experience some discomfort after a filling. A filling is, after all, a response to injury. When we remove decay and restore a tooth, we’re triggering a healing response in the tooth’s tissues. This can cause temporary pain or sensitivity, especially to cold, pressure, or sweets.
The amount of discomfort depends on the extent of the injury:
Smaller cavities may result in little to no discomfort
Deeper cavities may cause lingering sensitivity or soreness
Think of a filling as a bandage. If the injury is small, recovery is quick. But if the decay was extensive or close to the nerve, it takes time for the area to settle down.
In some cases, the pulp (nerve) inside the tooth may become inflamed. If the pain worsens or persists, further treatment like root canal therapy may be necessary. This is why it’s important to monitor any post-filling symptoms and report them to your dentist.

What Are the Other Risks?
Aside from post-operative discomfort, other possible risks of fillings include:
Fracture or leakage if the tooth structure is weak
Infection or nerve damage, especially with deep decay
Bite discomfort, if the filling is too high and not adjusted properly
In rare cases, tooth death, which may eventually lead to extraction
These are not common, but they are possibilities patients should be aware of.

Nothing Lasts Forever—Not Even Teeth
All dental treatments, including fillings, have a lifespan. Even our natural teeth are consumables—they wear down, get chipped, or become decayed over time with use. Fillings, too, can fracture or leak, especially if the tooth structure continues to weaken or if oral hygiene lapses.
But with good maintenance, regular dental visits, and daily care, we can extend the life of both your natural teeth and any restorations significantly.

Takeaway
Dental fillings in Singapore are a vital part of restorative care, but they’re not a cure-all. They are one step in preserving oral health—and like all treatments, they come with limitations.
Understanding what a filling does, why you might not feel a cavity until it’s advanced, and what to expect after treatment helps patients manage expectations and avoid surprises.
If you’ve been told you need a filling, or if you're unsure about the next step, speak with your dentist. The earlier problems are addressed, the better the outcome.
Need a regular dental check-up? Schedule a consultation with us today!
CLICK HERE if you want to know more about how to handle dental emergencies
To understand more about root canal treatment, CLICK HERE.
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