How Dental Implants Compare to Bridges for Replacing Missing Teeth

When a tooth is lost or extracted, two of the most commonly discussed replacement options are dental implants and bridges. Both approaches have been used successfully for many years and each has distinct characteristics that may suit different patients. The most appropriate choice depends on a range of individual clinical factors — including the condition of the neighbouring teeth, jawbone health, gum health and personal priorities.

This article provides a general comparison of dental implants and bridges to help you understand how they differ. It is intended as information only and should not replace a professional assessment. If you are considering options for replacing missing teeth, we recommend speaking with a qualified dentist who can assess your individual circumstances.

What Is a Dental Implant?

A dental implant is a small titanium post that is placed into the jawbone to act as a replacement for the root of a missing tooth. Over several months, the implant integrates with the surrounding bone — a process known as osseointegration — to create a stable foundation. Once integrated, a custom-made crown, bridge or denture is attached to the implant to restore the appearance and function of the missing tooth.

Treatment typically involves an initial assessment, the surgical placement of the implant, a healing period, and the fitting of the final restoration. The total process can take several months, although timelines vary depending on the patient's circumstances.

Not everyone is suitable for implants. Adequate bone volume and healthy gum tissue are important factors, and a thorough clinical assessment is needed before treatment can be recommended. At our dental implant clinic in South Kensington, we carry out a detailed evaluation for every patient considering this option.

What Is a Dental Bridge?

A traditional fixed bridge is a restoration designed to span the gap left by one or more missing teeth. It works by anchoring a replacement tooth (known as a pontic) to crowns placed on the teeth either side of the gap. These neighbouring teeth — called abutment teeth — are prepared and shaped so that the crowns can fit over them, with the pontic suspended between them.

Bridges are typically made from porcelain, ceramic or a combination of materials and are permanently cemented in place. They can restore chewing function and appearance effectively in many situations.

A bridge can be a particularly good option when the neighbouring teeth already require crowns — for instance, if they are heavily filled or otherwise compromised. In these cases, preparing the abutment teeth serves a dual purpose.

Tooth Preparation and Impact on Neighbouring Teeth

One of the most frequently discussed differences between implants and bridges relates to how each option affects the teeth next to the gap.

A dental implant is placed directly into the jawbone in the space left by the missing tooth. This means it functions independently and does not usually require any preparation or alteration of the adjacent teeth. For patients whose neighbouring teeth are healthy and intact, this can be a significant advantage — the surrounding teeth remain untouched.

A bridge, by contrast, requires the abutment teeth to be reshaped and fitted with crowns. This involves removing a layer of enamel, which is an irreversible procedure. While this is a well-established and safe technique, some patients prefer to avoid altering otherwise healthy teeth if possible.

That said, a bridge may still be the preferred solution in certain situations — for example, when the adjacent teeth are already damaged, heavily restored or in need of crowns for other reasons. In these circumstances, the tooth preparation required for a bridge may be clinically appropriate regardless. The dentist will explain which approach is more suitable based on the specific clinical picture.

Bone and Gum Considerations

When a tooth is lost, the jawbone in that area can gradually lose volume over time. This process, known as resorption, occurs because the bone is no longer stimulated by the forces of chewing transmitted through the tooth root.

A dental implant replaces the tooth root and sits within the jawbone, which can help stimulate the bone and may assist in maintaining bone volume in that area. This is often cited as one of the potential long-term benefits of implant treatment.

A bridge, however, does not replace the root. The pontic sits above the gum line, and the underlying bone may still be subject to gradual resorption. For some patients, this may influence the long-term appearance of the gum tissue beneath the bridge.

It is important to note that adequate bone levels are needed for an implant to be placed. If significant bone loss has already occurred, additional procedures may be required before implant placement can proceed. Your dentist will assess your bone levels as part of the treatment planning process and explain whether any preparatory treatment is recommended.

Cleaning and Maintenance

Both dental implants and bridges require careful oral hygiene to ensure they last as long as possible. However, the cleaning techniques involved can differ.

An implant-supported crown can generally be cleaned in a similar way to a natural tooth — with regular brushing and interdental cleaning around the base of the crown. Many patients find this straightforward and comparable to their usual routine.

Cleaning around a bridge requires a little more attention. Because the pontic is connected to the abutment crowns, it is not possible to floss between the units in the usual way. Instead, patients are typically advised to use specialised floss threaders, interdental brushes or water flossers to clean underneath the bridge and around the supporting teeth.

In both cases, regular dental check-ups and professional cleaning appointments are important. Your dental team will provide tailored advice on how to care for whichever restoration you have, and can demonstrate the most effective cleaning techniques for your situation.

Longevity and Potential Future Treatment

Patients often ask how long implants and bridges are expected to last. While no dental restoration can be guaranteed indefinitely, both options can provide many years of reliable function when properly cared for.

Well-maintained dental implants have a strong track record for longevity. Many studies indicate that implants can remain functional for 15 to 25 years or longer, although individual outcomes vary depending on factors such as oral hygiene, lifestyle habits, and overall health. The crown or restoration attached to the implant may need to be replaced or repaired at some point, even if the implant itself remains stable.

Bridges also have a well-documented history of success. Research suggests that many bridges last between 10 and 15 years, though some last considerably longer. Over time, bridges may be affected by wear, changes to the abutment teeth, or gum recession, and may eventually need to be replaced.

With either option, ongoing care — including good oral hygiene, a balanced diet, and regular dental visits — plays a significant role in how long the restoration lasts.

Costs and Value Over Time

The cost of dental treatment is an important consideration for many patients, and it is worth understanding how dental implants vs bridges compare in this regard.

Dental implants generally involve a higher initial investment than a bridge. The treatment includes the surgical placement, the healing period, and the final restoration, each of which contributes to the overall cost. However, because implants do not require preparation of the neighbouring teeth and may offer advantages in preserving bone volume, some patients consider them a worthwhile long-term investment.

A bridge is often less expensive upfront and the treatment can usually be completed more quickly. For patients who need a reliable replacement and prefer to avoid surgery, or where the clinical situation favours a bridge, this can be a practical and effective choice.

It is also worth considering potential future costs. If a bridge needs to be replaced after a number of years, the cumulative expense may approach or exceed the cost of an implant over a similar period. Equally, implants may require maintenance or component replacement at some stage. Every patient's situation is different, and we recommend requesting a personalised written estimate so you can compare both options clearly.

Which Option Might Be Right for You?

Choosing between an implant and a bridge is a personal decision that depends on several factors. These may include:

• The health and condition of the teeth next to the gap
• The volume and quality of your jawbone
• The health of your gums
• Your budget and financial preferences
• Whether you are comfortable with a minor surgical procedure
• Your maintenance preferences and cleaning habits
• Any relevant medical conditions or lifestyle factors

There is rarely a single "right" answer that applies to every patient. Some people are better suited to implants; for others, a bridge is the more appropriate solution. In certain cases, both options may be clinically viable, and the final decision comes down to the patient's priorities and preferences.

The most important step is to have a thorough assessment with a dentist who can examine your teeth, review your oral health, and discuss the pros and cons of each option in the context of your specific situation. Shared decision-making — where the dentist provides clear information and the patient makes an informed choice — is central to good dental care. You may also wish to explore other dental conditions that influence treatment choice to understand how your wider oral health may affect the recommendation.

Next Steps — Discuss Implants vs Bridges with a Dentist in London

If you are missing one or more teeth and would like to understand whether a dental implant or a bridge is more suitable for your situation, we encourage you to arrange a consultation. Whether you are interested in replacing a single missing tooth with an implant or considering alternatives such as using dentures to replace missing teeth, a face-to-face assessment will provide the clarity you need.

During your appointment, the dentist will examine your teeth and gums, review your oral health, and explain the advantages and limitations of each option as they apply to you. You will receive a written treatment plan and cost estimate, and you are welcome to ask any questions before making a decision. There is no obligation to proceed on the day — we encourage patients to take the time they need.

To get started, please book a consultation to discuss dental implants or bridges in London. Our team is here to help you make an informed, confident choice about replacing your missing teeth.

This article provides general information about dental implants and bridges and is not a substitute for personalised dental advice. Treatment suitability, outcomes and timelines vary between individuals. Please consult your dentist for guidance specific to your situation.