Missing a Tooth? Implants, Bridges and Dentures Compared

Losing a tooth, whether through decay, an injury, gum disease or an extraction, leaves more than a gap. Over time, neighbouring teeth can drift into the space, the opposite tooth can over-erupt, chewing can become harder and the jaw bone where the tooth was gradually shrinks. That’s why dentists usually recommend replacing missing teeth, especially back teeth that do the heavy chewing.

There are three main ways to replace a missing tooth: a dental implant, a bridge or a denture. Each has strengths and trade-offs. This guide explains how they compare so you can have an informed conversation with your dentist.

Option 1: Dental implants

How they work

A dental implant is a small titanium post placed into the jaw bone where the tooth root used to be. Over several months the bone bonds to the implant. A connector (abutment) and a custom-made crown are then attached on top, creating a tooth that looks and functions much like a natural one.

Advantages

• Doesn’t rely on neighbouring teeth, so they don’t need to be filed down
• Stimulates the jaw bone, which helps limit bone loss
• Feels stable and secure when eating and speaking
• Cleaned like a natural tooth, with brushing and flossing
• With good care and regular check-ups, implants can last many years

Things to consider

• It’s a surgical procedure, and treatment usually takes three to six months from placement to final crown
• You need enough healthy bone; some people need a bone graft first
• Smoking and poorly controlled diabetes increase the risk of problems
• It’s usually the highest up-front cost of the three options. At Hornsby Dental, a single implant is $4,500–$6,500 depending on what’s needed

Read more on our dental implants page.

Option 2: Dental bridges

How they work

A conventional bridge fills the gap with a false tooth (pontic) held in place by crowns on the teeth either side. The whole unit is bonded in place, so it doesn’t come out. Other designs include bridges held by a bonded wing on one side, and bridges supported by implants when several teeth are missing.

Advantages

• Fixed in place, with no removing for cleaning
• No surgery needed
• Usually completed in two to three visits over a few weeks
• A good option when the neighbouring teeth already need crowns

Things to consider

• The supporting teeth are prepared for crowns, which removes healthy tooth structure if those teeth are otherwise sound
• Cleaning under the false tooth needs special floss or interdental brushes
• The bone under the gap isn’t stimulated, so some shrinkage can occur over time
• If one supporting tooth develops decay or gum disease, the whole bridge can be affected

Read more on our dental bridge page.

Option 3: Dentures

How they work

A denture is a removable replacement for one or more missing teeth. A partial denture replaces some teeth and clips onto the remaining natural teeth. A full denture replaces all the teeth in an arch. Dentures can be made from acrylic, or with a thin metal framework (often cobalt-chrome) for a stronger, slimmer partial denture.

Advantages

• Usually the lowest up-front cost
• No surgery and minimal changes to other teeth
• Can replace many teeth at once
• Easy to add teeth to if more are lost later

Things to consider

• They take time to get used to for speaking and eating
• They need to be removed for cleaning and usually overnight
• Partial dentures can trap plaque around the teeth they clip onto
• As the gums and bone change shape, dentures may need relining or replacing
• Some people find them less stable, especially full lower dentures; implants can be used to anchor a denture for extra stability

Read more on our dentures page.

Side-by-side comparison

How to decide

The right choice depends on several things your dentist will assess with you:

• Where the gap is. Front teeth raise appearance questions; back teeth need to handle heavy chewing forces.
• The health of the neighbouring teeth. If they already have large fillings, crowning them for a bridge may make sense. If they’re untouched, an implant avoids drilling them.
• Your bone and gums. X-rays or a 3D scan show whether there’s enough bone for an implant.
• Your general health. Some conditions and medicines affect healing and suitability for surgery.
• How many teeth are missing. Several missing teeth may be best handled with a denture, an implant-supported bridge or implant-retained denture.
• Budget and timing. Consider long-term costs too: replacement and maintenance over the years, not just the first bill.

What if I don’t replace the tooth?

Sometimes leaving a gap is reasonable, for example a missing wisdom tooth or a back tooth with no opposing tooth. But for most gaps, teeth either side gradually tip into the space, the opposing tooth can drop down, food traps more easily and the bite can change. Replacing a tooth soon after it’s lost is usually simpler than correcting these changes later.

What happens at a tooth replacement consultation

At your first appointment, your dentist will:

1. Talk about your goals. Is the priority appearance, chewing, budget, avoiding surgery, or a long-lasting result?
2. Examine the gap and the teeth around it, including old fillings, cracks and gum health.
3. Take x-rays or a 3D scan to check bone height and width and the position of nerves and sinuses.
4. Review your medical history, including medicines that affect bone and healing.
5. Explain the options that suit you, with the steps, timeframes, risks and costs of each.

You’ll receive a written treatment plan with fees and item numbers so you can check your health fund cover. There’s no obligation to proceed, and you’re welcome to take time to think it over or seek a second opinion.

Looking after your replacement tooth

• Implants: brush and floss around them like natural teeth. Gum disease around implants (peri-implantitis) is a key cause of implant problems, so regular check-ups and cleans matter.
• Bridges: use a floss threader, super floss or interdental brush under the false tooth every day.
• Dentures: remove and clean them daily with a soft brush and non-abrasive cleaner, take them out overnight, and see us if they become loose or sore.

Find out more about dental implants in Hornsby.

FAQs

Is getting an implant painful?

Implant placement is done under local anaesthetic. Most people describe some soreness and swelling for a few days afterwards, which is usually managed with over-the-counter pain relief.

How long do bridges last?

Many bridges last 10 years or more with good cleaning and regular check-ups. How long yours lasts depends on the health of the supporting teeth and your habits, such as grinding.

Can I get a temporary tooth while I decide?

Yes. A temporary denture or bonded tooth can fill the gap while you plan longer-term treatment or while an implant heals.

Will my health fund cover it?

Implants, bridges and dentures are usually claimed under major dental. Ask us for item numbers so you can check your benefit.

Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.

Book a visit at Hornsby Dental

Hornsby Dental is at Suite 21, 14 Edgeworth David Avenue, Hornsby, about three minutes’ walk from Hornsby Station, with free street parking nearby. We’re open Monday to Friday 9am–6pm and Saturday 8:30am–4pm. Book online or call (02) 8090 1100.

This article is general information only. It isn’t a substitute for advice from your dentist about your own mouth and health.