Comparison
Dental Implants vs. Dental Bridges
Bridges destroy adjacent healthy teeth. Implants leave them alone. The 20-year math, and when each is actually the right call.

Dr. Henry Qiu, DDS
UCLA Implant FacultyUpdated 2026-05-13
01
The summary
A traditional dental bridge requires grinding down the healthy teeth on either side of the gap. An implant leaves those teeth completely untouched. Over a 20-year window, the implant is almost always the lower total cost and the lower total dental work.
Bridges win on upfront timeline (two visits, two weeks) and on slight upfront cost savings. Implants win on longevity, neighboring-tooth preservation, and total 20-year cost. Most specialists choose implants for themselves.
02
What a bridge does to your neighboring teeth
A traditional 3-unit bridge requires the dentist to grind down the two healthy teeth on either side of the gap into stumps that can support a crown. Those teeth become permanently weaker.
About 30% of teeth that get crowned for a bridge need a root canal within 10 years from the trauma of being reshaped. By year 15–20, many of those teeth fail outright, requiring the bridge to be redone along with two new implants anyway.
An implant occupies only the space of the missing tooth. Neighboring teeth are never touched. Five years later, those teeth are still as healthy as they were the day you walked in.
03
Longevity
Implants: 95–98% 10-year survival, 25+ year average lifespan, lifetime warranty on the zirconia crown at our practice.
Bridges: roughly 87% 10-year survival. Average lifespan is 10–15 years before the bridge or one of the anchor teeth fails and the work needs to be redone.
Long-term, this is the gap that matters most. A bridge buys you a tooth replacement for a decade or two. An implant buys you a tooth replacement for a lifetime.
04
Upfront cost
Bridges: $2,500–$3,500 for a 3-unit bridge.
Implants: $3,500 all-inclusive at our practice.
Roughly the same upfront, sometimes slightly less for the bridge. Where the math shifts is at year 10–15 when the bridge needs to be replaced and the anchor teeth often need additional work.
05
The 20-year math
Single implant at $3,500, maintained with normal hygiene: $3,500 over 20 years.
3-unit bridge at $3,000, with 30% likelihood of root-canal-needed adjacent tooth at year 10 ($1,500), and 50% likelihood of full replacement at year 15 ($3,000 plus possibly 2 new implants at $7,000 if anchor teeth have failed): expected cost over 20 years is $4,500–$10,500.
The cost spread is wide because bridge outcomes are wide. Some bridges last 20 years cleanly; many do not. Implants are far more predictable in their longevity.
06
Treatment timeline
Bridges: two visits over 2–3 weeks. First visit prepares the anchor teeth and takes impressions; second visit delivers the bridge.
Implants: 3–4 months from consult to final crown. Surgery and crown delivery are short visits; most of the time is bone integration under the gum.
If you have a wedding or event coming up, we can sometimes coordinate a temporary bridge or bonded tooth so the gap is filled during integration.
07
When a bridge actually makes sense
The anchor teeth on either side of the gap already need crowns anyway. In this case the grinding required for the bridge is also needed for the crowns, so neighboring-tooth damage is not an additional cost.
The patient is medically ineligible for surgery. Some patients with uncontrolled medical conditions, IV bisphosphonate use, or recent radiation cannot have implants. A bridge is the right answer for them.
Time-critical situations. If a tooth needs to be replaced in two weeks for an event and there is no time for implant integration, a bridge is faster.
