Dental Bridges Explained: Types, Costs, and How They Compare to Implants

A dental bridge is a fixed prosthetic device that literally 'bridges' the gap created by one or more missing teeth. Unlike dentures (which are removable) and implants (which are surgically placed), a traditional bridge is cemented permanently to the natural teeth on either side of the gap and is not removable by the patient. For the right patient and situation, a bridge offers reliable, cost-effective tooth replacement — but understanding its tradeoffs compared to implants is essential before committing.

How a Traditional Bridge Works

A traditional three-unit dental bridge consists of two dental crowns placed on the teeth adjacent to the gap (called abutment teeth) with an artificial tooth (called a pontic) suspended between them. The two crowned abutment teeth support the pontic, which fills the space of the missing tooth. The bridge is permanently cemented and functions like natural teeth for eating and speaking. Because the abutment teeth must be prepared (shaped down) to receive crowns, this is an irreversible procedure.

Types of Dental Bridges

Traditional bridges are the most common, using adjacent natural teeth as anchors. Cantilever bridges use only one adjacent tooth as an anchor — used when there is a tooth on only one side of the gap, though less preferred due to higher stress on the anchor tooth. Maryland bridges (also called resin-bonded bridges) use metal or porcelain wings bonded to the back of adjacent teeth — no crown preparation required, making them reversible, but they're less stable and used primarily for front teeth. Implant-supported bridges replace three or more teeth using implants as anchors rather than natural teeth.

When a Bridge Is the Right Choice

A traditional bridge may be preferable to an implant when: the adjacent teeth already need crowns for other reasons (the bridge crowns can serve double duty); the patient lacks sufficient bone for an implant and doesn't want bone grafting; the patient's medical history makes implant surgery inadvisable; cost is the overriding consideration and the patient wants a fixed (non-removable) solution; or when a faster treatment timeline is needed (bridges are typically completed in 2 to 4 weeks; implants take 3 to 6 months or more).

The Bridge Procedure

Bridge treatment typically requires two to three appointments. At the first, the abutment teeth are prepared under local anesthesia — enamel is reduced to make room for the crowns. An impression or digital scan is taken, and a temporary bridge is placed. After 2 to 3 weeks, the permanent bridge fabricated by a dental laboratory is tried in for fit and appearance, then permanently cemented. Adjustments can be made before cementing but are very difficult afterward.

Bridge vs. Implant: The Key Comparison

Bridges involve modifying healthy adjacent teeth (which otherwise wouldn't need treatment), don't prevent bone loss at the extraction site, and typically need replacement after 10 to 15 years. Implants preserve adjacent teeth intact, stimulate bone and prevent resorption, and can last 20 to 30+ years. However, implants cost more upfront ($3,500–$6,000 vs. $2,500–$5,000 for a three-unit bridge), require surgery, and take longer. For young patients with healthy adjacent teeth, an implant is usually the better long-term investment. For patients with adjacent teeth that already need crowns, a bridge may be clinically more efficient.

Caring for a Dental Bridge

The main hygiene challenge with a bridge is cleaning under the pontic, where food accumulates and gum disease can develop if not addressed. Regular flossing under the bridge using a floss threader, water flosser, or interdental brush is essential. Failure to clean under the pontic is the leading cause of bridge failure over time, as gum disease in that area eventually undermines the abutment teeth.

Cost of Dental Bridges

A three-unit dental bridge (two crowns plus one pontic) typically costs $2,500 to $5,500 without insurance. Most dental insurance plans cover 50% of the cost as major restorative care, subject to annual maximums and deductibles. Longer bridges covering more missing teeth cost proportionally more.

Final Thoughts

A dental bridge is a proven, durable solution for missing teeth that has served patients well for over a century. In the right clinical situation, it remains an excellent choice. Discuss the bridge vs. implant decision thoroughly with your dentist, including the implications for the adjacent teeth and long-term replacement costs, before making your choice.