What Are the Drawbacks of Composite Veneers?

Composite veneers generally last 3–5 years under good conditions, whereas high-quality porcelain ones often last 7–10 years or more. Although composite can still outlast average expectations with proper care, it tends to wear, stain, or chip sooner.

Because composite material is slightly more porous than porcelain, it’s more susceptible to surface stains from coffee, tea, red wine, and smoking. Over time, the resin may pick up discolouration that only professional polishing or touch-ups can correct.

While composite is generally resilient under normal use, it’s more vulnerable to chipping, cracking, or edge wear, especially if you chew hard foods, bite nails, or grind your teeth. Its weaker structural strength makes it less forgiving under excessive stress.

One advantage is that small chips or damage can often be repaired easily. But sometimes, damage or excessive wear may require a full replacement of the bonding — and repeated repairs can degrade aesthetics over time.

Composite veneers may not match the natural translucency, depth, or lifelike character that porcelain offers. In more complex cosmetic cases — especially for the front teeth — the visual differences can become noticeable.

The success of composite veneers depends heavily on the dentist’s skill, precision in layering, curing, and finishing. Bonding mistakes— poor adhesion, uneven layers, over-polishing — can shorten their lifespan or affect appearance.