Losing one or more teeth changes the way you eat, speak, and go about daily life. When it comes to replacing missing teeth, two options come up most often: dental implants and dentures. Both can restore the appearance and function of your smile, but they work in very different ways and suit different circumstances.
If you are weighing up dental implants against dentures, understanding how each option works and what affects suitability is a useful first step before any consultation.
Quick Overview
- Dental implants and dentures are both established tooth replacement options, but they differ significantly in how they work and what they involve.
- Dental implants may suit people with adequate bone density and good general health who are looking for a fixed, long-term solution.
- Dentures may suit people who need to replace multiple or all teeth, prefer a non-surgical option, or have health factors that affect implant suitability.
- How well either option works depends on bone health, gum condition, overall health, and how many teeth need replacing. These factors vary significantly between individuals.
- An initial assessment with a dentist helps determine which options are clinically suitable for your specific situation.
Keep reading to understand how each option works, what affects suitability, and what the process looks like for each.
What Are Dental Implants and How Do They Work?

A dental implant can support a crown, bridge, or denture, making it a versatile option for both single-tooth replacement and more complex cases involving multiple missing teeth.
Because the implant integrates with the jawbone, it functions more like a natural tooth root than other replacement options. This means it does not rely on neighbouring teeth for support, and it does not need to be removed for cleaning.
The process is carried out in stages and typically takes several months from placement to the fitting of the final crown or restoration.
At Dr Jack’s Castle Hill and Winston Hills clinics, dental implants are planned using digital imaging to assess bone levels and guide precise placement.
What Are Dentures and How Do They Work?
Dentures are removable replacements for missing teeth. They sit on the gum tissue and, in the case of partial dentures, use metal clasps to anchor to remaining natural teeth. Full dentures replace all teeth in the upper or lower jaw, or both.
Modern dentures are custom-made to fit the shape of the patient’s mouth. They can restore the ability to eat and speak more comfortably when teeth are missing. However, new dentures often feel unusual at first and can take some time to adjust to, with some patients finding it takes several months before wearing them feels natural.
One practical consideration with dentures is that the fit can change over time. As the jawbone and gum tissue naturally change shape after tooth loss, a denture that initially fits well may become looser and require relining or replacement. Lower dentures, in particular, can be harder to stabilise due to movement from the tongue.
Implant-supported dentures are also an option. These are removable dentures that clip onto implants placed in the jaw, providing significantly more stability than traditional removable dentures.
Dental Implants vs Dentures: Key Differences
The two options differ across several areas that are worth considering carefully before any treatment decision.
Stability and feel: Implants are fixed in the jaw and do not move during eating or speaking. Dentures sit on the gums and may shift, particularly as the mouth changes shape over time. Patients often report that implants feel closer to natural teeth in everyday function.
Effect on the jawbone: When a tooth is lost, the jawbone in that area can begin to shrink over time because it no longer receives stimulation from a tooth root. Dental implants, by integrating with the bone, help preserve jawbone density in a way that removable dentures do not. The Australian Dental Association (ADA) notes that partial tooth loss can have a significant impact on a person’s quality of life and overall oral health, and addressing it promptly supports better long-term outcomes.
Treatment time and process: Dentures can often be completed in weeks. Implants involve a surgical stage and a healing period that typically spans several months. Some patients need preparatory work such as bone grafting, which adds time.
Maintenance: Implants are cleaned like natural teeth: brushing, flossing, and regular dental check-ups. They cannot develop tooth decay, but they can be affected by gum disease around the implant site. Dentures need to be removed for cleaning, soaked in a cleaning solution, and removed overnight to allow the gum tissue to rest.
Cost: Implants typically have a higher upfront cost than dentures. The cost of a single implant includes the implant post, the abutment, and the crown. Full-arch implant solutions cost more but may reduce the need for multiple individual implants across the jaw. Dentures are generally less expensive initially, though they may require adjustments, relining, or replacement over time.
Who Is a Suitable Candidate for Dental Implants?
Dental implants are not suitable for everyone. Several health and anatomical factors affect whether a patient can proceed with implant treatment.
The jawbone needs sufficient density and volume to hold the implant securely. Patients who have experienced significant bone loss after tooth loss may need bone grafting before an implant can be placed. This adds time and cost to the overall treatment.
Good gum health is also necessary. Active gum disease needs to be treated and resolved before implant treatment can begin. Gum disease around an existing implant, known as peri-implantitis, is one of the most significant risks associated with implants. If left untreated, it can cause bone loss around the implant and lead to implant failure.
General health factors also play a role. Uncontrolled diabetes, for example, can affect healing and increase the risk of infection, which may affect implant success. Smoking is another factor that can affect healing and is associated with higher implant failure rates. Your dentist will review your full medical and dental history before discussing whether implants are appropriate for your situation.
Who Is a Suitable Candidate for Dentures?
Dentures are available to a wider range of patients than implants because they do not involve surgery and do not require adequate bone density for placement.
They are often the most practical option for patients who need to replace all remaining teeth in one or both jaws, particularly where bone levels are insufficient for multiple implants. They are also frequently chosen by patients who prefer to avoid a surgical procedure or for whom surgery may carry additional risk due to age or medical history.
Partial dentures can be a suitable solution where a few teeth are missing, but the remaining natural teeth are healthy enough to provide support. The denture sits on the gums and clips to these teeth to stay in place.
For patients who want more stability from their dentures, implant-supported dentures offer a middle ground. Two or more implants placed in the jaw allow the denture to clip securely in place rather than relying solely on gum suction and fit.
A Considered Decision for Long-Term Oral Health

At Dr Jack’s Castle Hill and Winston Hills clinics, tooth replacement is approached with a focus on what is clinically appropriate for each individual. Implant treatment is planned using digital imaging to assess bone levels and guide precise placement, and all options are discussed based on your specific oral health needs.
If you would like to discuss tooth replacement options with an experienced team, Dr Jack Yang welcomes new patients at both clinic locations.
- Call Castle Hill: (02) 8806 3712
- Call Winston Hills: (02) 9000 1778
Or book an appointment online.
Frequently Asked Questions
Can dentures be converted to dental implants later?
In many cases, yes. Some patients start with traditional dentures and later transition to implant-supported dentures or fixed implant restorations. The feasibility depends on the amount of bone remaining in the jaw at the time of assessment. Your dentist will need to evaluate bone levels and general health before confirming whether this is an option for you.
What happens to the jawbone if missing teeth are not replaced?
When a tooth is lost, the jawbone in that area no longer receives the stimulation it once did from the tooth root. Over time, this can lead to jawbone shrinkage, which may affect the fit of dentures and alter the appearance of the jaw and lower face. Replacing missing teeth, particularly with implants, may help slow this process. A dentist can assess the extent of any bone changes during your consultation.
Note: Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.
References
Healthdirect Australia. (n.d.). ‘Dental implant procedure’. Healthdirect Australia. https://www.healthdirect.gov.au/dental-implant
Better Health Channel. (n.d.). ‘Dentures’. Victorian Government Better Health Channel. https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/dentures
Teeth.org.au. (n.d.). ‘Dental Implants’. Teeth.org.au. https://www.teeth.org.au/dental-implants
Australian Dental Association. (n.d.). ‘Improving the oral health and quality of life of Partially Dentate Patients’. Australian Dental Association. https://ada.org.au/improving-the-oral-health-and-quality-of-life-of-partially-dentate-patients








