Which type of dental filling is best?

By Dr. Zeeshanali Moosabhoy · Medically reviewed by Dr. Reji Moideen · 17/05/2025 · Dental Restorations in Dubai Orthodontics in Dubai

The best type of dental filling is usually a tooth-colored composite resin for most everyday cavities, because it bonds directly to the tooth, keeps more natural structure, and blends invisibly with your smile. For large cavities in back molars that take heavy chewing force, a bonded ceramic (porcelain) inlay or onlay lasts longer and resists wear better. There is no single “best” material for every mouth. The right choice depends on where the tooth sits, how big the cavity is, your bite, any metal sensitivities, and your budget.

Medically reviewed by Dr. Ketki Shah, Restorative and Prosthodontic Dentist at Mint Dental Care, Dubai.

At Mint Dental Care in Al Barsha, Dubai, we place composite, glass ionomer, ceramic, gold, and amalgam-alternative fillings every week. This guide walks through each option honestly, so you can see which tooth filling material fits your situation before you sit in the chair.

Why do teeth need fillings in the first place?

A filling removes decay and rebuilds the tooth so bacteria cannot keep tunnelling deeper toward the nerve. Cavities, cracks, worn enamel from grinding, and acid erosion all break down tooth structure over time. Left alone, a small cavity becomes a big one, then reaches the pulp, and what could have been a quick filling turns into a root canal or an extraction.

Catching decay early is what keeps treatment small. We use digital X-rays and 3D scanning to spot cavities while they are still tiny, which means less drilling and more of your natural tooth preserved. If you want the full picture of what triggers a filling and what the visit involves, our guide on when and why you need dental fillings covers the warning signs in detail.

What factors decide the best filling for you?

The best filling is the one matched to your specific tooth, not the most expensive or the most popular material. Five things drive the decision, and a good dentist weighs all of them together.

Tooth location: Front teeth need a natural, tooth-colored result. Back molars need strength to survive chewing pressure.
Cavity size: Small to medium cavities suit composite. Very large ones often do better with a lab-made ceramic inlay or a crown.
Durability you want: Composite lasts around 7 to 10 years, ceramic and gold can pass 15 years, glass ionomer wears sooner.
Cost and cover: Amalgam and glass ionomer are cheapest, composite sits in the middle, ceramic and gold cost the most.
Sensitivities: Patients who prefer to avoid metals have safe, biocompatible options that skip amalgam entirely.

Our dentists talk through each of these with you at the consultation, so the plan balances how the tooth looks, how long it lasts, and what it costs.

What are the main types of dental fillings?

There are five common filling materials, and each earns its place for a different reason: composite resin, ceramic, glass ionomer, gold, and amalgam. Here is how they actually compare in the mouth.

Composite resin fillings

Composite resin is the most requested filling at our clinic and the default choice for visible teeth. It is a blend of plastic resin and fine glass particles that we shade to match your enamel, then bond directly to the tooth and cure with a light.

Pros: Invisible color match, preserves more healthy tooth, bonds to and reinforces the structure, done in a single visit.
Cons: Lasts around 7 to 10 years rather than 15, can stain slightly over many years, costs a little more than amalgam.
Best for: Front teeth, small to medium cavities, and anyone who wants a natural look.

Because bonding is so central to how well these last, technique matters. We break down the whole process, longevity, and Dubai pricing in our dedicated guide on whether composite fillings are the best option for tooth restoration.

Ceramic (porcelain) fillings

Ceramic is the premium tooth-colored option and often the best permanent filling material for a large cavity in a molar. These inlays and onlays are milled in a lab or with CAD/CAM, then bonded in place. Porcelain resists staining better than composite and holds up under heavy bite forces.

Pros: Very durable, stain-resistant, extremely natural looking, comfortable against opposing teeth.
Cons: Higher cost, usually needs two visits unless done same-day, brittle if the bite is not adjusted correctly.
Best for: Large cavities, worn molars, and patients who want a long-term cosmetic result.

Silver amalgam dental filling in molar tooth

Amalgam (silver) fillings

Amalgam is the traditional silver filling, a mix of silver, tin, copper, and mercury. It is strong and cheap, which is why it dominated dentistry for a century, but its metallic color and mercury content have pushed most patients toward tooth-colored alternatives.

Pros: Very durable at 10 to 15 years, the most affordable option, forgiving to place even in a wet field.
Cons: Obvious silver color, contains mercury, needs more healthy tooth removed, can expand and contract with temperature.
Best for: Budget back-tooth repairs where appearance does not matter.

Many patients ask us about swapping old silver fillings for tooth-colored ones. Whether that is worth doing depends on the filling’s condition, and our team explains the trade-offs in this piece on understanding amalgam fillings and whether to replace them.

Glass ionomer fillings

Glass ionomer is a fluoride-releasing material that suits children and low-pressure areas. It is made from acrylic and a glass powder, and it slowly releases fluoride that helps protect the surrounding tooth from new decay.

Pros: Releases protective fluoride, bonds without heavy drilling, quick to place, gentle for kids.
Cons: Wears and chips faster, less durable under chewing, not as natural-looking as composite.
Best for: Baby teeth, cavities near the gum line, root-surface decay, and temporary restorations.

Gold fillings

Gold is the longest-lasting filling material, sometimes passing 20 years, though few patients choose it today because of the color and cost. A gold inlay is cast in a lab and cemented in place, and it is remarkably gentle on the teeth it bites against.

Pros: Exceptional lifespan, does not corrode, kind to opposing teeth.
Cons: Most expensive option, clearly metallic, needs two visits.
Best for: Back molars where durability outranks appearance and budget is not a concern.

What is the best permanent tooth filling material?

For a lasting, natural result, bonded ceramic is the best permanent filling material for large restorations, while composite resin is the best everyday choice for small to medium cavities. Gold outlasts everything but loses on looks. Here is the quick comparison our patients find most useful.

Composite resin: Tooth-colored, moderate durability, medium cost, best for visible and small cavities.
Ceramic (porcelain): Very natural, very durable, high cost, best for large or cosmetic long-term restorations.
Amalgam: Silver, high durability, low cost, best for budget back teeth.
Glass ionomer: Tooth-like, low durability, low cost, best for children and gum-line areas.
Gold: Metallic, very high durability, very high cost, best for premium back-molar longevity.

Mint Dental Care clinic in Barsha Heights, Dubai - modern dental facility near Dubai Internet City

When does a tooth need a crown instead of a filling?

A tooth needs a crown rather than a filling when so much structure is gone that a filling would not hold. If a cavity spans more than about half the tooth, or the tooth is cracked, or it has just had a root canal, a filling alone can leave it weak and prone to fracture. In those cases a crown wraps and protects the whole tooth.

Not sure which side of that line your tooth falls on? Our guide on the signs you need a dental crown lays out the symptoms, and our full crowns and bridges service explains how we rebuild badly damaged teeth. Cracked and worn molars are also often better protected by a bonded onlay before they reach the point of needing a crown at all.

What are temporary fillings and when are they used?

A temporary filling is a short-term seal placed to protect a tooth between appointments, not a final restoration. We use them during root canal treatment, while a lab makes a ceramic inlay or crown, or to calm pain and infection before the full repair. They are soft on purpose so they come out easily, so they are not meant to last more than a few weeks.

Temporary fillings are common in multi-visit care such as root canal therapy in Dubai, where the tooth is sealed between the cleaning and the permanent restoration. If a temporary filling falls out and the tooth starts to ache, call us so we can reseal it quickly.

How do you make a dental filling last longer?

Good habits at home and regular check-ups are what stretch a filling from a few years to well over a decade. The material matters, but so does how you look after it.

Brush twice a day with fluoride toothpaste and floss around each filling to stop new decay at the edges.
Avoid chewing ice, pens, and hard sweets, which crack both fillings and natural enamel.
Wear a night guard if you grind, since grinding wears fillings down fast.
Come in every six months so we can catch a leaking or worn filling before it fails.

If a filling starts to feel sharp, sensitive to cold, or catches your floss, that is your cue to have it checked and possibly replaced.

Frequently Asked Questions

What type of filling is best for teeth?

Composite resin is best for most teeth because it matches your natural shade and preserves tooth structure. For large cavities in back molars, a bonded ceramic inlay is usually the best long-term choice. The ideal material depends on the tooth’s position, the size of the cavity, and your bite.

What is the best tooth filling material for durability?

Gold lasts the longest, often 15 to 20 years, followed closely by ceramic. Both outlast composite. If you want durability with a natural look, ceramic is the best filling material because it combines strength with a tooth-colored finish.

How should a cracked back tooth cavity be filled?

A cracked back tooth with a cavity often needs more than a simple filling. If the crack is shallow, a bonded ceramic onlay can seal and reinforce it. If the crack runs deep, a crown is safer because it holds the whole tooth together and stops the crack from spreading.

Can you have 3 fillings done at once?

Yes, 3 fillings can usually be placed in one appointment, especially if they are on the same side of the mouth so a single area of numbing covers them. We often group nearby fillings together to save you extra visits, as long as the treatment stays comfortable.

What dental filling options are available at Mint Dental Care in Dubai?

We offer composite resin, ceramic inlays and onlays, glass ionomer, gold, and biocompatible alternatives to amalgam. At your consultation we use digital X-rays and 3D scanning to recommend the option that best fits your tooth, your appearance goals, and your budget.

Do tooth-colored fillings cost more than silver ones?

Composite tooth-colored fillings usually cost a little more than amalgam, and ceramic costs the most because it is lab-made. We keep pricing transparent and talk through the options before any treatment, so you know exactly what each filling involves. Book a consultation for an exact quote for your teeth.