How Well Do Zirconia Crowns and Bridges Last? A Review of 66 Clinical Studies

Published 7 September 2026
Reviewed by Dr. Advaitha Anand, BDS MDS (Conservative Dentistry & Endodontics)

Zirconia is a strong, tooth-coloured ceramic material frequently chosen for dental crowns and bridges placed on natural teeth. When planning treatments to repair damaged teeth or replace missing ones, dentists and patients often want to know how well these restorations hold up over time. A systematic review and meta-analysis evaluated clinical studies published between 2008 and 2025 to measure the long-term track record of zirconia dental restorations.

What the Review Looked At

Researchers searched major medical databases, including PubMed, Cochrane, Embase, and Web of Science, gathering data published up to January 1, 2026. The review focused exclusively on clinical studies evaluating zirconia restorations placed on natural teeth with at least one year of patient follow-up.

In total, 66 studies met the inclusion criteria. The researchers assessed the risk of bias across the studies using standard evaluation tools (RoB 2, the Newcastle-Ottawa Scale, and Joanna Briggs Institute tools) and graded the certainty of evidence using the GRADE approach.

The review examined two key measures across different restoration types:

Survival rate: Whether the restoration remained in the mouth over time, even if minor repairs were needed.
Success rate: Whether the restoration remained completely free of any problems or complications throughout the follow-up period.

The researchers also tracked two categories of problems: biological complications (issues affecting living tissues, such as gum irritation or new decay) and mechanical complications (physical issues with the material, such as chipping, cracking, or coming loose).

Findings for Different Restoration Types

The review revealed that performance varied considerably depending on the type and design of the restoration:

Single Crowns

For single crowns (caps placed over an individual natural tooth):

Survival: Pooled survival rates ranged from 92.9% to 98.7% over up to 10 years.
Success: The pooled 10-year success rate was 46.1%.
Complications: Over a 10-year period, biological complications occurred in 12.1% of cases, while mechanical complications occurred in 53.9% of cases.

Fixed Dental Prostheses (Standard Bridges)

For conventional multi-unit fixed bridges supported by adjacent teeth:

Survival: The pooled survival rate was 77.6% over 10 to 13 years.
Success: The pooled success rate over the same 10 to 13-year timeframe was 40.1%.
Complications: Biological complications affected 19.4% of cases, and mechanical complications affected 46.7%.

Resin-Bonded Fixed Bridges

Resin-bonded bridges, which attach to neighbouring teeth using conservative bonding wings rather than full crowns, showed notable outcomes:

Survival: 97.4% over 10 to 15 years.
Success: 84.3% over 10 to 15 years.
Complications: These restorations had relatively low problem rates, with biological complications at 3.3% and mechanical complications at 8.0% over 10 to 15 years.

Cantilever and Inlay-Retained Bridges

Other bridge designs showed more mixed results:

Conventional cantilever bridges (supported by a tooth on only one side): Survival rates ranged from 50.0% to 52.6% over 9 to 13 years, with success rates between 12.5% and 22.6%. Biological complications were noted in 50.0% and mechanical complications in 37.5% at 9 years.
Inlay-retained bridges (anchored into cavities prepared in adjacent teeth): The 10-year survival rate was 89.0%, with a 10-year success rate of 70.3%. At the 3-year mark, biological complications stood at 21.4% and mechanical complications at 14.3%.

The Role of Surface Preparation

The review also evaluated surface preparation techniques used during bonding. Restorations treated with airborne-particle abrasion (a method of micro-roughening the surface with fine particles) combined with 10-methacryloyloxydecyl dihydrogen phosphate (MDP, a chemical bonding agent) achieved favourable short-term clinical outcomes. For single crowns treated this way, pooled short-term survival reached 98.6% and success reached 97.7%.

Limitations to Keep in Mind

While this review compiles evidence from 66 clinical trials and observational studies, several limitations exist. Follow-up lengths differed widely among the included studies, ranging from one year to fifteen years. Furthermore, while short-term success for specific bonding techniques was high, long-term data over a decade or more is still developing for newer surface treatment protocols. The gap between survival rates and success rates highlights that while zirconia restorations generally stay in place, maintenance and mechanical issues like chipping remain common over the long term.

What This Means for Patients

For patients considering zirconia restorations, these findings provide a realistic picture of what to expect over the long term:

Zirconia single crowns and resin-bonded bridges show high survival rates over 10 to 15 years, meaning they reliably remain in place.
However, success rates are lower than survival rates because mechanical issues, such as surface chipping or debonding, can occur over time and may require clinical attention.
Different bridge designs carry distinctly different long-term survival and complication profiles, making individual treatment planning an essential part of restorative dental care.