How Dental Implants and Dentures Work
Dental implants and dentures solve the same problem, replacing missing teeth, but they do it through entirely different mechanisms. Understanding how each one works is the first step toward making an informed choice.
How Dental Implants Work
A dental implant is a small titanium post that a surgeon places directly into the jawbone. Over 3 to 6 months, the bone fuses with the implant in a process called osseointegration. Once healed, an abutment (connector) is attached, and a custom crown is placed on top. The result is a fixed tooth replacement that does not move.
Implants can replace a single tooth, several teeth with an implant-supported bridge, or a full arch of teeth. Because the implant is anchored in bone, it transfers chewing forces the same way a natural tooth root does.
How Dentures Work
A denture is a removable appliance made of acrylic, nylon, or metal framework that holds artificial teeth. Full dentures replace all teeth in an arch and rely on suction, adhesive, or the shape of the gum ridge for retention. Partial dentures replace some teeth and clip onto remaining natural teeth for support.
Dentures are removed for cleaning and typically taken out at night. They rest on the gum tissue rather than anchoring into the bone, which affects how they feel and function compared to implants.
Dental Implant vs. Denture: Side-by-Side Comparison
The differences between implants and dentures go beyond appearance. Here is how they compare across the factors that matter most to patients.
Cost
A single dental implant with the crown typically costs between $3,000 and $6,000. A full arch of implants ranges from $15,000 to $30,000 per arch. Costs vary by location, provider, and case complexity.
A complete set of traditional dentures typically costs between $1,000 and $3,000 per arch. However, dentures need relining every 1-2 years and full replacement every 5-10 years. Over a 20-year period, the cumulative cost of dentures can approach or exceed the one-time cost of implants.
Most dental insurance plans cover a portion of denture costs. Implant coverage varies widely by plan. Many practices offer payment plans or financing for implant treatment.
Comfort and Chewing Function
Implants feel and function like natural teeth. Because they are fixed in the bone, there is no slipping, no sore spots from a shifting appliance, and no restriction on what you can eat. Patients with implants typically report chewing ability close to that of natural teeth.
Dentures take time to adjust to and can feel bulky, especially upper dentures that cover the palate. Food can get trapped underneath. Chewing efficiency with conventional dentures is significantly lower than with natural teeth or implants. Hard, sticky, or crunchy foods often become difficult or uncomfortable to eat.
Bone Health and Jaw Preservation
When a tooth is lost, the jawbone in that area begins to shrink because it no longer receives stimulation from the tooth root. This process, called resorption, continues over time and can change the shape of the face.
Dental implants stimulate the bone and help maintain its volume, similar to natural tooth roots. Dentures sit on top of the gum and do not stimulate the bone. Over years, bone loss under dentures can cause the fit to loosen, the facial profile to change, and the denture to become less stable.
Maintenance and Longevity
Implants are cared for like natural teeth: brushing, flossing, and regular dental checkups. The implant post itself can last a lifetime with proper care. The crown on top may need replacement after 15-20 years due to normal wear.
Dentures require daily removal, cleaning with a denture brush and solution, and soaking overnight. They need professional relining every 1-2 years as the gum and bone shape changes, and full replacement every 5-10 years as materials wear down and fit deteriorates.
Implant-Supported Dentures: A Middle Option
Implant-supported dentures, sometimes called overdentures, combine features of both implants and dentures. A set of 2 to 6 implants is placed in the jawbone, and a specially designed denture snaps or clips onto the implants for stability. The denture may be removable for cleaning or permanently fixed, depending on the design.
This option offers several advantages. The implants prevent bone loss in the areas where they are placed. The denture is far more stable than a conventional denture, so chewing is easier and there is no need for adhesive. Patients who struggle with a loose lower denture often benefit significantly from implant support.
The cost of implant-supported dentures typically falls between conventional dentures and a full arch of individual implants, generally ranging from $5,000 to $15,000 per arch. This makes them a practical middle ground for patients who want more stability than a traditional denture but cannot afford or do not need a full set of individual implants.
Who Is a Candidate for Each Option?
Almost anyone with missing teeth can wear dentures. They do not require surgery, and the fitting process is non-invasive. Dentures may be the better choice for patients with significant medical conditions that increase surgical risk, those with severe bone loss who are not candidates for bone grafting, or patients who prefer a non-surgical solution.
Implant candidacy requires adequate jawbone density to support the implant, healthy gums free of active periodontal disease, and overall health sufficient to heal from minor surgery. Smoking significantly increases the risk of implant failure. Uncontrolled diabetes and certain medications that affect bone healing may also affect candidacy.
A prosthodontist can assess your bone volume with 3D imaging, review your medical history, and determine which options are realistic for your situation. In some cases, bone grafting can build up the jaw enough to make implants possible even after bone loss.
When to See a Prosthodontist
A prosthodontist is a dentist who has completed 3 years of advanced residency training beyond dental school, focused on replacing and restoring teeth. While general dentists place dentures and some place implants, a prosthodontist has the deepest training in planning and executing tooth replacement.
Consider seeing a prosthodontist if you are missing multiple teeth and are not sure which replacement option is right for you, if you have been told you are not a candidate for implants and want a second opinion, if your current dentures do not fit well or are uncomfortable, or if you want to explore implant-supported dentures as an alternative.
A prosthodontist can coordinate care across specialties. If you need bone grafting from an oral surgeon, implant placement from a periodontist, or orthodontic preparation, the prosthodontist serves as the treatment planner who ensures all the pieces come together.
Find a Prosthodontist Near You
Every prosthodontist on My Specialty Dentist has verified specialty credentials. Search by location to find a prosthodontist in your area who can evaluate your options for replacing missing teeth and help you choose the right solution.
Search Prosthodontists in Your Area