At a glance
- A filling restores a tooth after decay has been removed, filling the resulting space to prevent further bacterial entry, restore the tooth's shape, and allow normal chewing function to resume.
- Composite resin is a tooth-coloured material that has become the most widely used filling option, particularly for visible front and back teeth, due to its excellent aesthetic match with natural tooth colour.
- Silver amalgam, a mixture of metals, has been used for over a century and remains a durable, cost-effective option, particularly well suited to large fillings in back teeth that bear heavy chewing loads.
- For most patients today, composite resin represents an excellent all-round choice, balancing appearance, durability and conservative tooth preparation, and it remains our most frequently recommended material for the majority of…
Why Fillings Are Needed
A filling restores a tooth after decay has been removed, filling the resulting space to prevent further bacterial entry, restore the tooth's shape, and allow normal chewing function to resume. Fillings are also occasionally used to repair teeth that have chipped or fractured from minor trauma rather than decay.
Choosing the right filling material depends on factors including the location and size of the cavity, the forces the tooth will bear during chewing, aesthetic considerations, and, to some extent, budget, since materials vary in cost. We discuss these factors with each patient to arrive at a suitable choice.
Composite Resin Fillings
Composite resin is a tooth-coloured material that has become the most widely used filling option, particularly for visible front and back teeth, due to its excellent aesthetic match with natural tooth colour. It bonds directly to the tooth structure, which can help provide additional support to the remaining tooth compared with materials that simply sit within the cavity.
Composite fillings are placed in layers and hardened using a curing light, allowing precise shaping to match the natural tooth contour. While highly durable for most everyday use, very large fillings under heavy chewing forces may benefit from a stronger restoration such as a crown instead, which your dentist will advise on.
Amalgam and Other Materials
Silver amalgam, a mixture of metals, has been used for over a century and remains a durable, cost-effective option, particularly well suited to large fillings in back teeth that bear heavy chewing loads. Its main drawback is the silver-grey colour, which is less aesthetically pleasing than tooth-coloured alternatives.
Glass ionomer cement is another option, releasing fluoride over time and bonding chemically to tooth structure, making it useful in certain situations such as fillings near the gum line or in children, though it is generally less durable than composite for high-stress areas. Ceramic and gold restorations, though less common as simple fillings, offer excellent durability for larger restorations.
Making the Right Choice
For most patients today, composite resin represents an excellent all-round choice, balancing appearance, durability and conservative tooth preparation, and it remains our most frequently recommended material for the majority of cavities. The decision ultimately depends on the specific clinical situation, and we take time during your consultation to explain which option best suits your particular tooth and needs.
Regardless of material chosen, the longevity of any filling depends significantly on ongoing oral hygiene and regular check-ups, since fillings can develop decay around their edges over time if plaque control is inadequate, just as natural teeth can.
Questions patients ask us
- Are composite fillings as strong as amalgam?
- Composite fillings are strong and well suited to most everyday chewing forces, though for very large restorations under heavy load in back teeth, amalgam or a crown may occasionally be recommended for superior long-term durability. Your dentist will advise based on the specific situation.
- Are amalgam fillings safe?
- Amalgam fillings have a long track record of safety and effectiveness and remain approved for dental use. Many patients today prefer tooth-coloured alternatives for aesthetic reasons, but amalgam continues to be a reasonable option in specific clinical situations.
- How long do dental fillings typically last?
- With good oral hygiene and regular check-ups, composite fillings often last many years, though lifespan varies based on filling size, location and individual chewing habits. Periodic examination allows early detection of any wear or edge decay before it becomes a bigger problem.
- Can an old amalgam filling be replaced with a tooth-coloured one?
- Yes, existing amalgam fillings can generally be replaced with composite resin for cosmetic reasons or if the filling is failing, though this should be done thoughtfully as removal itself involves some loss of additional tooth structure.
Sources and further reading
Guidance from professional and public health bodies. Clinical decisions here are made on your own examination and radiographs.
- 1.EFP clinical practice guidelines for periodontitis — European Federation of Periodontology
- 2.Classification of periodontal and peri-implant diseases — American Academy of Periodontology
- 3.Prevention and treatment of periodontal diseases in practice — Scottish Dental Clinical Effectiveness Programme
- 4.Oral health — fact sheet and global status report — World Health Organization
- 5.Policy statements and oral health definitions — FDI World Dental Federation
- 6.Dental health — conditions, treatments and patient guidance — NHS (UK)
- 7.Systematic reviews of oral and dental interventions — Cochrane Oral Health
- 8.Regulatory framework and dental education standards in India — Dental Council of India
When to see us
Get examined without waiting if any of the following applies to you:
- Gums that bleed without provocation, or bleeding that has become heavier
- Teeth that feel loose, are drifting, or gaps that are opening up
- Persistent bad breath or taste, gum abscesses, or pus on pressing the gum
Get a written plan and cost before you commit
If this is what you are dealing with, the next step is a consultation with radiographs — gums & prevention cases are seen by the specialist who handles that field. You get a written plan and staged cost before anything begins.
reception@dramitsharmahospital.comThis article is general education and does not replace an in-person examination, radiographs or a diagnosis by a qualified dentist.
Clinical terms in this article
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