Dental Fillings

metal filling swapped for white filling

Dental Fillings — Simple, Clear, and Honest

What is a dental filling, really?

A filling repairs a tooth that’s been damaged by decay, cracks, or wear. We remove the weakened part, clean the tooth, and restore it with a strong, tooth‑coloured material that blends naturally with your smile.

Why do people need fillings?

Because decay doesn’t hurt at the start. Most cavities begin silently — no pain, no warning. By the time you feel something, the problem is already bigger.

A filling stops decay early, protects the tooth, and prevents the need for more complex treatment later.

Are modern fillings safe and strong?

Yes. Composite fillings bond securely to the tooth, require minimal drilling, and look completely natural. They’re strong, durable, and metal‑free. 

They are also BPA free for those that are interested. 

Does having a filling placed hurt?

No. We numb the area gently, and the procedure is comfortable. We position your head and body so that you can be relaxed and distracted by the TV in the ceiling. 

How long does a filling take?

Usually 20–30 minutes, depending on the size and location. Most patients say the scale and clean takes longer than the filling. Though clearly bigger fillings take longer than small fillings.

What if the cavity turns out too large for a filling?

If the tooth has lost too much structure, a crown or inlay/onlay is often the better long‑term option. We’ll always tell you honestly which option protects your tooth best.

What if I haven’t had a filling in years?

You’re not alone — and you’re not judged. We see patients every week who haven’t been for a long time. Our job is to help you move forward, not look backward.

Now that you understand the essentials in a clear, conversational way, let’s explore the full, in‑depth guide for patients who want more detail.

What Are Dental Fillings?

A dental filling is a restoration used to repair a tooth affected by decay, cracks, or minor fractures. We remove the damaged area, clean the tooth, and place a strong, natural‑looking material to restore shape, strength, and function.

Very large cavities may be better restored with a crown, as it provides greater long‑term protection.

Why we use tooth‑coloured Composite Fillings

Composite fillings are the modern standard because they:

            • Look natural
            • Bond securely to the tooth
            • Require minimal removal of healthy tooth structure
            • Are durable and long‑lasting
            • Contain no metal
            • Are suitable for front and back teeth
            • They blend seamlessly with your smile and support the tooth rather than weakening it.

Signs you may need a filling.

You may need a filling if you notice:

            • Sensitivity to hot, cold, or sweet foods
            • Pain when biting
            • A visible hole or dark spot
            • Rough edges on a tooth
            • Food getting stuck between teeth
            • A chipped or cracked tooth
            • Old fillings that feel loose or worn

Early treatment prevents the need for more complex procedures. Children often need fillings because baby teeth are softer — regular visits to our Children’s Dentistry service help prevent future issues.

Why we don’t use metal fillings.

We choose modern tooth‑coloured composite fillings instead of traditional amalgam. Not because metal fillings are “toxic” that’s a common misconception, but because composite is:

            • More aesthetic
            • More conservative
            • More compatible with modern dentistry
            • More popular with patients

Metal fillings have become unfashionable, and most patients prefer natural‑looking options.

What happens during a filling appointment.

            1. Examination & X‑Ray (When required)
            2. Assessment of the tooth and determine the extent of decay.
            3. Gentle Numbing to ensure a comfortable, pain‑free experience.
            4. Removal of decay with a smooth bur.
            5. Clean the affected area thoroughly.
            6. Placement of the Filling ( etching–> bonding –>  restoration)
            7. Composite material is layered, shaped, and hardened with a curing light.
            8. The bite is adjusted carefully and polished smooth. 
            9. This ensures your bite feels natural and the filling blends seamlessly.

Benefits of Dental Fillings

            • Stops decay from spreading
            • Restores strength and function
            • Prevents fractures
            • Improves appearance
            • Long‑lasting and durable
            • Minimally invasive
            • Matches your natural tooth colour

Material Deep‑Dive: Composite Resin vs Glass Ionomer

A Quick Look at Modern Filling Materials

Today’s dentistry uses two main tooth‑coloured materials: Composite Resin and Glass Ionomer. Each has its place, and we choose the right one based on what your tooth needs.

Composite Resin (Most Common Filling Material)
Composite resin is the material used for the majority of permanent fillings because it will:

            • Bonds strongly to the tooth
            • Matches your natural tooth colour
            • Be durable and long‑lasting
            • Work well for front and back teeth
            • Allow precise shaping for a natural look
            • Require minimal removal of healthy tooth structure, compared to amalgam. 

Composite is the gold standard for most fillings because it restores strength and appearance at the same time.

Glass Ionomer (Used in Specific Situations)
Glass ionomer is an entirely different material with unique benefits. It can :

            • Release fluoride to help protect the tooth
            • Bond chemically to enamel and dentine
            • Be gentle on the tooth pulp during setting (no heat or contraction)
            • Work well for children’s teeth as less technique sensitive.
            • Be ideal for areas that stay moist and hard to isolate.
            • Be often used as a temporary or intermediate restoration.

We use glass ionomer when:

            • The cavity is in a hard‑to‑keep‑dry area
            • The tooth is still developing (children)
            • A temporary filling is needed
            • There is high decay risk and fluoride release is beneficial.
It’s also common to combine the strengths of both materials in deeper, larger, or more complex fillings. This is known as an open sandwich (my personal favourite) or closed sandwich technique. If you’re curious, ask your dentist — they’ll be impressed you’ve read this far.

 

Feature

Composite Resin

Glass Ionomer

StrengthHighModerate
AestheticsExcellent (natural match)Good
Fluoride ReleaseNoYes
Best ForPermanent fillingsKids, moist areas, temporary fillings
BondingMicromechanical + adhesiveChemical
LongevityLong‑lastingShorter lifespan
Tooth Removal NeededMinimalMinimal

Micro‑FAQ: Filling Materials

Is composite resin safe? Yes — it’s the global standard for modern dentistry and bonds securely to the tooth.

Is glass ionomer a permanent filling? It can be, but it’s usually used for children, high‑decay areas, or temporary restorations.

Which material lasts longer? Composite resin generally lasts longer than glass ionomer.

Does glass ionomer look natural? Yes — but composite resin offers the best aesthetic match.

Why would you choose glass ionomer instead of composite? When moisture control is difficult, or when fluoride release is beneficial.

People Also Ask

No — the tooth is numbed, and the procedure is comfortable.

Composite fillings can last many years with good oral hygiene.

Yes — composite hardens immediately. Avoid very hard foods until numbness wears off.

Decay often causes no pain until it becomes severe. Early treatment prevents bigger problems.

We may recommend a crown or inlay/onlay for added strength.

Restore your tooth with a natural‑looking filling

A filling is one of the simplest, most effective ways to protect your tooth and prevent future problems. Our modern, tooth‑coloured materials blend seamlessly and keep your smile looking its best.

            • ✔ Gentle, comfortable treatment
            • ✔ Natural‑looking results
            • ✔ Same‑day appointments often available
            • ✔ All health funds accepted

Book your consultation today and protect your smile with confidence.