A sharp zing when you sip a cold drink. A jagged edge your tongue keeps finding. Or a routine checkup that ends with the word “cavity.” None of these moments means you should panic, but each deserves a clear explanation of what happens next.
A dental filling can protect a tooth, restore comfortable chewing, and prevent a small damaged area from becoming a larger problem. This guide explains what fillings do, how dentists choose among composite, amalgam, ceramic, and gold, and what you’ll feel during treatment. It also covers recovery, realistic lifespan expectations, Vancouver-area costs, Canadian Dental Care Plan rules, and the important question of whether an older filling needs replacement or could be repaired.
If dental visits make you tense, you’ll also find practical information about numbing, nitrous oxide, oral sedation, and ways to make the appointment feel more manageable. Clear patient education is part of good care, much like modern content marketing for dentists should answer real questions before a patient books.
By the end, you’ll have a better sense of what your tooth may need and what to ask at an appointment. If symptoms are already bothering you, booking a checkup with Inspire Dental Group can turn uncertainty into a straightforward plan.
Why This Guide Exists and How It Can Help You
A cavity doesn’t always hurt. You might notice cold sensitivity for a moment, food catching in one spot, or a rough edge that wasn’t there before. Sometimes there’s no warning at all, and your dentist spots the problem during an examination or on an X-ray.
That can feel alarming, especially if you’ve had an uncomfortable dental experience before. The word “filling” sounds simple, but patients often have practical questions: Will it hurt? Which material is right? How long will it last? What happens if the old filling is worn but not painful? How much will insurance or the Canadian Dental Care Plan pay?
Dental decay is common across Canadian families. A federal oral-health survey found that 24% of respondents had received a filling within the previous 12 months, while 31% of people with dental coverage reported a recent filling compared with 20% of people without coverage. The same survey reported a filling rate of about 29% among children under 12, showing that restorative care can matter at many stages of life. Canada’s Expanded Baseline Survey provides the national context.
This guide separates the decision into manageable pieces:
- The purpose: what a dental filling seals and why timing matters.
- The material: how appearance, chewing pressure, cost, and maintenance influence the choice.
- The appointment: what you’ll feel, what the dentist is doing, and how long the visit usually takes.
- The practical details: aftercare, lifespan, coverage, and replacement versus repair.
You don’t need to memorise dental terminology before you come in. You need enough information to understand your options and tell the dental team what worries you.
What a Dental Filling Does
A tooth has a hard outer enamel layer, softer dentin beneath it, and a centre containing the nerve and blood supply. Decay often starts when bacteria in plaque produce acids that weaken enamel. If the process continues, the damaged area can move deeper and irritate the nerve.
A filling removes the weakened portion and seals the space left behind. A small opening in a wall allows water to reach deeper layers. Patching it helps protect the structure around it. In the same way, a filling rebuilds missing tooth structure and closes a pathway bacteria could use to enter again. It is not just material placed over a stain.
When monitoring may be reasonable
A visible mark does not always require an immediate filling. If the tooth surface remains intact, a dentist may monitor an early area while you improve cleaning and fluoride exposure. Once decay creates a cavity or the tooth fractures, sealing and rebuilding the area becomes more likely.
The choice comes from the examination and any necessary X-rays. A dark spot alone cannot show how deep the problem is, and sensitivity may have causes other than decay. This distinction matters when deciding whether to repair now, monitor the tooth, or investigate another source of discomfort.
When the nerve may be involved
A small cavity generally requires less treatment than decay that has reached the pulp. If the nerve is inflamed or infected, a filling may not provide enough support. Depending on how much healthy tooth remains, treatment could involve a root canal, crown, or another restoration.
Canadian evidence shows the wider need for restorative care. A Canada-wide analysis estimated that 34.2% of Canadians had at least one dental treatment need, with restorative care representing 20.4% of those needs, the largest category in that survey. It also estimated that roughly 12 million Canadians had at least one unmet dental treatment need. The BMC Oral Health analysis describes the scale of untreated need.
Practical rule: A filling works best when it preserves sound tooth structure before damage requires a more extensive restoration.
Choosing the Right Filling Material
A patient in Vancouver may want a white filling for a visible tooth, while a heavily used back molar may need a material chosen for strength. There is no single correct option. The decision depends on the tooth’s location, chewing pressure, appearance, remaining healthy structure, and what repair or replacement could involve later.
Composite is the familiar tooth-coloured material. The dentist bonds it to the tooth and shapes it to follow the surrounding enamel. It suits front teeth and visible areas, and it may also work for back teeth when the conditions are favourable. Because composite is placed in layers and hardened with a curing light, the tooth must stay reasonably dry during treatment.
Amalgam is silver-coloured and has traditionally been used for restorations in back teeth exposed to strong chewing forces. A Canadian evidence review found suggestive evidence that amalgam may last longer than composite. In one comparative dataset, 14.9% of composite fillings were replaced compared with 10.8% of amalgam fillings, although the difference was not statistically significant. The Canadian rapid-response review supports discussing durability and future repair needs instead of choosing based on appearance alone.
Ceramic restorations can provide a natural appearance and strong performance. They are often made outside the mouth, so they may require more planning than a direct filling. Gold is durable and generally well tolerated by the tissues, but its metallic colour and greater investment make it less common for patients who want a tooth-coloured result.
| Material | Appearance | Average lifespan | Best for |
|---|---|---|---|
| Composite | Tooth-coloured | About 8 years in reviewed Canadian data | Visible areas and patients prioritising appearance |
| Amalgam | Silver-coloured | About 11 years in reviewed Canadian data | Load-bearing back teeth and durability discussions |
| Ceramic | Tooth-coloured | Varies by case and design | Larger restorations requiring an indirect option |
| Gold | Metallic gold | Varies by case and design | Patients prioritising durability and willing to invest |
The Canadian health technology assessment estimated an average time to failure of 95.8 months for composite resin and 132.5 months for amalgam, or roughly 8.0 years and 11.0 years in the reviewed data. The Canadian assessment makes clear that these figures support a discussion, not a promise for one person’s tooth.
A filling can also be repaired or replaced later, depending on how much sound tooth remains. Ask whether the proposed material leaves room for future repair, especially if paying out of pocket under the CDCP affects the decision.
For a practical visual comparison, you can watch this short overview:
For more detail on white and silver-coloured restorations, the composite filling versus amalgam guide can help you prepare questions for your dentist.
What Happens During Your Appointment
Most filling appointments follow a predictable sequence. First, the dentist examines the tooth, reviews any images, and confirms which area needs treatment. You can ask questions before anything begins, including what material is being considered and whether the tooth may need more than a filling.
The dentist then applies a local anaesthetic. You may feel pressure or a brief pinch, followed by warmth or tingling as the area becomes numb. The dentist checks that you’re comfortable before removing the decayed or weakened tooth structure.
The treatment sequence
- Assessment: The dentist identifies the damaged area and plans how much healthy structure can remain.
- Numbing: Local anaesthetic blocks pain signals from the tooth and nearby gum.
- Preparation: Dental instruments remove decay and shape the space so the restoration can hold securely.
- Placement: Composite is usually applied in layers. Each layer is hardened with a curing light.
- Finishing: The dentist shapes and polishes the filling, then checks your bite so the restored tooth doesn’t feel too high.
You may hear the drill and feel vibration, water spray, suction, or pressure. You shouldn’t feel sharp pain. You also won’t feel the exact depth of the cavity or the amount of decay being removed, which is why communication matters. Raise your hand if you feel anything more than pressure.
A typical visit lasts 30 to 60 minutes, and numbness usually fades over a couple of hours. A second short visit is rarely needed for a straightforward filling, though larger restorations or a different treatment plan can change the schedule. You can read a fuller explanation of timing in how long a filling takes.
Staying Comfortable During Treatment
Dental anxiety isn’t a character flaw, and asking for comfort support isn’t an overreaction. Tell the dental team before treatment if you’re worried about injections, sounds, loss of control, gagging, or a previous painful experience. That information lets the team slow down, explain each step, and agree on a signal for pausing.
Topical numbing gel can be placed before the local anaesthetic. Some practices also use warmed anaesthetic and gentle injection techniques to make the initial sensation easier. These options aim to create a pain-free filling experience, while you remain awake and able to communicate.
Choosing the right level of relaxation
- Local anaesthetic: The area is numb, but you’re fully alert. This is the usual approach for a routine filling.
- Nitrous oxide: Often called laughing gas, it can ease mild anxiety while you remain awake and responsive.
- Oral sedation: Medication can leave you relaxed and drowsy, but generally still able to respond. You’ll need to follow the practice’s instructions about arranging transportation and post-treatment supervision.
- Specialist sedation: More complex procedures may require a different sedation plan, which is assessed separately from a simple filling.
Comfort also comes from the surroundings. A blanket, music, a ceiling-mounted television, and regular check-ins can make the appointment feel less clinical. Inspire Dental Group is one Vancouver-area option that offers oral sedation and comfort-focused care for anxious adults.
A useful phrase to say: “Please tell me what you’re doing before you do it, and give me a pause signal.”
If you’re concerned about how long the numbness will last, this guide to dental freezing explains what patients commonly notice after local anaesthetic.
Healing, Aftercare, and How Long Fillings Last
The first day or two is usually about protecting the tooth while your mouth returns to normal. If your cheek, lip, or tongue is numb, chew on the opposite side and avoid very hot drinks or foods. Numb tissue can’t accurately warn you about temperature, and it’s easy to bite yourself without realising it.
Mild sensitivity to cold, pressure, or biting can occur during the first 24 to 48 hours and should gradually settle. A filling may also feel unfamiliar because the tooth has a new surface and your bite is adjusting to it.
Signs that deserve a call
Contact the dental office if you notice:
- Sharp pain: Especially pain that doesn’t improve or makes chewing difficult.
- Lingering ache: Sensitivity that continues rather than fading.
- An uneven bite: The restored tooth feels as if it touches first when you close your teeth.
- A lost or damaged filling: Keep the area clean and arrange an assessment rather than ignoring it.
Lifespan depends on the material, tooth location, bite force, oral hygiene, the size of the restoration, and habits such as grinding. Composite may last around 7 to 10 years, while amalgam may last around 10 to 15 years. Ceramic and gold restorations can often last 15 years or more, but these are general expectations, not warranties. The Canadian evidence cited earlier found average failure times of about 8.0 years for composite and 11.0 years for amalgam in reviewed data. The assessment report explains the source of those averages.
Daily care still matters. Brush twice daily with fluoride toothpaste, floss around the restored tooth, attend regular hygiene visits, and ask about a night guard if you grind. A consistent home routine can help you protect both the filling and the tooth around it. For everyday oral-care products, you can browse the Avistar oral care collection.
If a restoration chips or comes out, help for a lost filling can help you understand what to do while waiting for an appointment.
Costs, Coverage, and the Replace vs Repair Question
Vancouver filling fees vary with the size of the restoration, the number of surfaces involved, the material, and the tooth’s location. A small composite filling may cost around $150, while a larger or multi-surface restoration may cost $400 or more. These are broad examples, not a quote for your tooth, and the office should explain the proposed fee before treatment.
The Canadian Dental Care Plan includes fillings as restorative services, but “covered” doesn’t always mean “free.” The plan bases payment on established fees and income bands. For household incomes between $70,000 and $79,999, CDCP covers 60% of eligible costs, leaving the patient responsible for 40% of the established fees, with possible additional charges depending on the office fee and treatment choice. The federal CDCP coverage information explains the rules.
British Columbia has seen substantial CDCP participation. The federal information reports 525,879 approved BC members receiving care in 2025-26. That makes it important to ask for a written estimate showing the plan’s eligible amount, the office’s fee, your expected share, and any difference between them.
Private insurance also depends on its schedule, annual limits, deductibles, frequency rules, and material restrictions. Ask these questions before agreeing to treatment:
- What is being restored: Is it a new cavity, a fractured filling, or an old restoration that has lost its seal?
- What does my plan pay: Is the estimate based on the insurer’s or CDCP’s established fee?
- What might I owe: Are there office-fee differences or charges for a preferred material?
- Can the filling be repaired: Does the defect require full removal, or can the dentist preserve more tooth?
Age alone should never determine replacement. Canadian Dental Association guidance says drilling out and replacing an older filling can weaken the tooth and shorten its lifespan, while small defects may be suitable for repair. The CDA oral-health guidance supports focusing on recurrent decay, fracture, loss of retention, or significant wear rather than replacing a restoration because it’s old.
When a Filling Is Not Enough and Your Next Steps
A filling is appropriate when the tooth has a manageable area of damage and enough strong structure remains to support it. The clues can be subtle: temperature sensitivity, a visible pit or dark area, a chipped edge, food repeatedly catching between teeth, or floss that frays in one particular spot. None of these signs confirms the diagnosis, but each is a good reason to arrange an examination.
The treatment choice follows the condition of the tooth, not just the symptom. A dentist may recommend:
- A small filling: For limited decay or a modest defect in an otherwise stable tooth.
- An inlay or onlay: When the damaged area is larger than a routine filling can reliably support, but enough tooth remains to avoid a full crown. An inlay fits within the tooth’s cusps, while an onlay can cover one or more weakened cusps.
- A crown: When the tooth has lost substantial strength and needs coverage around its remaining structure. This explanation of dental crowns describes why a crown may be considered when a filling isn’t enough.
- Root canal treatment: When decay, cracks, or injury has affected the nerve and the tooth can still be saved.
- Extraction and replacement: When the tooth can’t be predictably restored, the dentist may discuss removal and options such as an implant, bridge, or denture.
Canadian adults commonly need restorative care. A government oral-health report found that about 95.9% of dentate adults had experienced decay in permanent teeth, with an average of 10.67 decayed, missing, or filled teeth. The Canadian adult oral-health report shows why a filling is a routine part of dental care, not a personal failure.
Children need attention too. Statistics Canada reported that 57% of children aged 6 to 11 had at least one affected primary or permanent tooth in 2022-2024. The Statistics Canada release supports early, calm conversations with children and parents about prevention and treatment.
A problem doesn’t need to become an emergency before you act. If you’re in Vancouver or the Lower Mainland, Inspire Dental Group offers examinations, fillings, crowns, root canal care, preventive services, and support for anxious patients across clinics in Downtown Vancouver, Oakridge, Main Street, Port Moody, and Langley, with weekend options available.
Visit Inspire Dental Group for a gentle assessment of sensitivity, a chipped tooth, a worn filling, or a child’s cavity. The team can explain whether repair, a new dental filling, or a larger restoration makes sense, then help you plan care around your comfort and coverage.
