Implant, bridge or denture: what the long-term survival data actually show

For replacing a missing tooth, the long-term survival data give no universal winner between an implant and a conventional bridge: both survive at high rates over a decade, and the choice turns on the state of the neighbouring teeth, the jawbone, and cost rather than on one option being clearly more durable [s1]. Dentures occupy a different category — removable, less permanent, and generally chosen when many teeth are missing or the alternatives are not feasible [s3].

The survival numbers

The most useful comparison is a meta-analysis that pooled survival and complication data across restoration types [s1]. Five-year survival ranged from 89.2% to 95.5% depending on the type of restoration, and at 10 years survival ranged from 65% to 89.4% [s1]. Translated into annual failure rates over a decade, the lowest — meaning most durable — were implant-supported single crowns at 1.12% and conventional tooth-supported bridges at 1.14%, statistically indistinguishable from each other [s1]. Failure rates rose for cantilever bridges (2.20%) and were highest for resin-bonded "Maryland" bridges (4.31%) [s1].

For implants specifically, a separate systematic review restricted to studies with at least 10 years of follow-up found a cumulative survival rate of 94.6%, with a mean marginal bone loss around the implant of 1.3 mm [s2]. That is strong long-term performance, and it is the basis for the common statement that a well-placed implant can last many years — though "survival" counts the implant remaining in place, not the absence of any complication [s1][s2].

What each option actually trades

The near-identical survival of implants and conventional bridges masks different costs and consequences [s1][s3]. A conventional bridge is anchored by grinding down the two adjacent teeth to hold crowns; that irreversibly alters healthy teeth, which is a real downside if those neighbours are sound [s3]. An implant does not touch the neighbouring teeth but requires enough jawbone to anchor into, a minor surgical procedure, and a longer, costlier treatment timeline, and it can fail if the surrounding bone becomes infected (peri-implantitis) [s2][s3]. Dentures are the least invasive and least expensive, but full or partial removable dentures are also the least stable in function and, unlike implants, do not slow the bone loss that follows tooth loss [s3].

The limits of the evidence

The survival figures come largely from specialist and academic settings, and real-world results depend heavily on the individual clinician, the patient's oral hygiene, smoking and general health — variables the pooled averages cannot capture [s1][s2]. "Survival" is also a low bar: a restoration can survive while requiring repairs, and complication rates are higher than failure rates for every option [s1]. Denture outcomes are harder to summarise because removable prostheses are remade rather than tracked as "failed," so head-to-head durability comparisons with fixed options are limited [s3].

The evidence-based bottom line is narrow but useful: for a single missing tooth with healthy neighbours, an implant avoids damaging those teeth and matches a bridge on durability, while a bridge avoids surgery and bone requirements — a genuine trade-off rather than a ranking [s1][s3]. This is informational reporting, not dental advice; the right option depends on an individual clinical assessment.