Last updated: September 2026
A crown is a significant piece of dental work, both in the chair time involved and the cost. Naturally, you want to know how long it will last before you need to go through the process again. The answer depends on the material, the tooth, your habits, and your maintenance.
These are broad ranges. Individual results vary, and a crown that is well-maintained in a mouth with good hygiene will outlast one that is neglected regardless of the material.
Ten to fifteen years is a reasonable expectation. Porcelain crowns offer the closest match to natural tooth colour and translucency, which makes them popular for front teeth. They can chip under heavy forces, particularly in patients who grind. For premolars and front teeth where aesthetics matter and forces are moderate, porcelain performs well.
Fifteen to twenty years or more. Zirconia is extremely hard and resistant to chipping and fracture. It is well-suited to back teeth where strength matters more than translucency. Modern zirconia has improved aesthetically, but for front teeth requiring precise colour blending, porcelain or layered zirconia may be preferred.
Ten to fifteen years. These crowns have a metal substructure covered with porcelain. They are strong, but a dark line can become visible at the gum margin as the gum recedes over time, which is cosmetically noticeable on front teeth. The porcelain can also chip off the metal surface. PFMs were the standard for decades and are still used, but all-ceramic options have largely replaced them for visible teeth.
Twenty to thirty years, sometimes longer. Gold is the most biocompatible crown material, wears at a rate similar to natural enamel (so it does not damage the opposing tooth), and almost never fractures. Its only drawback is cosmetic: it is visibly gold. For back teeth where appearance is not a priority, gold remains an option with the longest track record.
The crown itself cannot decay. The natural tooth underneath it can. Where the crown meets the tooth, usually just below the gum line, plaque can accumulate and cause decay. This undermines the seal between the crown and the tooth, eventually loosening the crown and compromising the tooth beneath it.
This is the most common cause of crown failure and the most preventable. Brushing along the gum line, flossing around the crowned tooth, and attending regular cleans all protect the margins.
Porcelain can chip. Zirconia can wear the opposing tooth. Any material will fail faster under the abnormal forces generated by bruxism. If you grind at night, a splint is a straightforward and inexpensive way to protect crowns (and natural teeth) from premature wear and fracture.
Grinding is common and often undiagnosed. Your dentist looks for signs of it at every examination: worn tooth surfaces, fractured cusps, muscle tenderness, and wear patterns on existing restorations.
A crown that does not fit precisely at the margins allows bacteria to enter and decay to develop underneath. A crown that does not meet the opposing tooth evenly concentrates force on one point, which can crack either the crown or the opposing tooth. Getting the fit right at the time of placement is critical to longevity.
At Divine Dental Care, we use digital intraoral scanning for crown cases, which captures the preparation with high accuracy. For same-day crowns, the crown is designed and milled in-house during the appointment, allowing the fit to be checked and adjusted immediately.
A crown is only as good as the foundation it sits on. If the tooth underneath develops a deep crack, loses its nerve, or has insufficient remaining structure, the crown may need to come off for further treatment or the tooth may need to be extracted. This is why your dentist examines crowned teeth carefully at each visit, checking the integrity of the tooth as well as the crown.
For families in Croydon, Ringwood and Mooroolbark, dental crowns represent a meaningful investment. Getting the best return on that investment comes down to two things: choosing the right material for the tooth in the first place, and maintaining it afterwards.
Choosing the material is your dentist's recommendation, informed by where the tooth sits, the forces it faces, and whether aesthetics are a priority. Maintaining it is your job: brushing, flossing, wearing a splint if you grind, and attending regular six-monthly check-ups where the crown is examined and cleaned professionally.
For residents who have had crowns placed elsewhere and want them monitored, or who have an older crown showing signs of wear, we assess crowns as part of every routine examination at the practice.
Whether you need a new crown, want to check an existing one, or have a crown that is causing problems, call (03) 9725 8040 or book online. We are at 59 Wicklow Ave, Croydon, a short walk from Croydon station on the Lilydale line. Patients from Bayswater, Heathmont, Kilsyth and Chirnside Park attend the practice regularly. Saturday appointments are available.
Our crowns and bridges page and same-day crowns page have more detail on the treatment options.
Crown lifespans stated here are general ranges based on material properties and clinical experience. Your crown's longevity depends on your individual circumstances. This article is general information, not personal dental advice.