Acrylic or Zirconia: What the Arch Is Made Of, and What Breaks

The two materials people are asked to choose between for a fixed arch are an acrylic prosthesis on a metal framework, and zirconia. They fail differently, they are repaired differently, and the published literature discusses them in different terms. What we cannot tell you is the price difference, because no schedule we read prices either one separately — and the figures circulating online for the gap come from practices selling the work.

What the codes say about material: nothing

The fixed implant denture for an edentulous arch is a single code per arch on the schedules we read. It distinguishes upper from lower and fixed from removable. It does not distinguish acrylic from zirconia, monolithic from veneered, or one framework from another.

That is worth knowing before a consultation, for two reasons. A payer's allowed amount does not change with the material, so an insurance answer will not settle the choice. And the extra a practice charges for zirconia is a practice's own pricing, which means it is a question for the itemised plan rather than a published fact. The code ladder, and what payers do allow, is in the line-by-line cost of a full arch.

What the literature says about acrylic

A 2024 review of fixed full-arch techniques in Dentistry Journal describes the acrylic approach in plain terms: "material costs are economical", and it is "reported with a success rate exceeding 95% for implant survival and 97% for prosthetic survival during a 1–6-year follow-up, with common complications including screw loosening and acrylic component fracture", citing a retrospective study for those figures.

It also names the long-term issue directly: "certain wear over time is well-documented, specifically depending on the opposing dentition", adding that "there are studies that consider the fixed acrylic denture's severe wear over time as a failure".

So the picture from that review is: comparatively cheap material, good published survival over a few years, two characteristic complications, and wear as the thing that eventually defines its service life.

What the same review says about zirconia

The review's own abstract is the clearest sentence we can quote: full-arch zirconia restorations "have gained popularity due to zirconia's strength and aesthetics, yet they are still associated with challenges like structural fractures, peri-implant complications, and design misfits". Elsewhere it lists the complication types as "fractures, component debonding, chipping, screw fracture or loosening".

Note what is and is not there. Strength and appearance are given as the reasons for its popularity. The failure modes named are structural rather than gradual — things that crack or chip rather than wear away. And the review does not give us a survival percentage for zirconia that we can quote at source, so we print none.

The practical difference, as far as we can honestly put it

• Repairability. An acrylic tooth that fractures is, in principle, a repair to a material designed to be worked on. A fracture in a ceramic structure is a different kind of event. What either costs is a question for the practice, in writing, before consent.
• Wear against the opposing arch. The review flags wear as depending on what the prosthesis bites against — which is why the question "what will this be chewing against?" belongs in the consultation.
• Weight and feel. Frequently claimed, rarely quantified in anything we could read. We do not print a comparison.
• Appearance. Given by the review as one of the two reasons for zirconia's popularity. Appearance is also where marketing operates hardest, and there are no before-and-after photographs on this site for reasons set out in how to read an arch before-and-after photograph.

Monolithic or veneered, which is a separate question

Before the choice between materials comes a choice inside one of them: whether the prosthesis is made from a single solid material, or from a core with a second, more translucent material fired over the front of it. The review we cite lists chipping among the complications reported for this class of work, and veneering layers are one of the places chipping happens.

A plan that says "zirconia" has not yet told you which of those two it means. The question is one sentence long and the answer changes what can go wrong: a chip in a veneering layer and a fracture through a solid framework are different events with different repairs.

The price gap we will not print

A figure circulates widely for what a zirconia prosthesis adds per arch. We traced the versions we could to pages published by practices that sell the treatment, not to any survey, schedule or study. Attributing a number like that to "research" because it appears in several places would be exactly the kind of citation-shaped guess this site exists to avoid.

What we can say is what the published payers do: they price the arch, not the material. Anything beyond that is a quotation from a specific practice for a specific case, and it should be in the plan you are handed.

What to ask before choosing a material

1. What are you proposing, precisely — the framework material and the tooth material, separately?
2. Is it monolithic, or veneered with a second material over a core?
3. What are the failure modes you see in practice with this material, and what does each repair involve?
4. What does the material change about the price of the plan, line by line?
5. What is the expected service life you work to, and what happens at the end of it?
6. What will it be biting against, and does that change your recommendation?

Question two matters more than its length suggests: the review notes that veneering ceramics is one of the places chipping is reported, which is a mechanically different arrangement from a single solid material.

Where this fits in the decision

Material is usually the last question in a full-arch plan and the first one people research, probably because it is the part with a visible answer. The order that makes more sense is: whether implants are possible at all, then fixed or removable, then how many implants, then what the prosthesis is made of.

The second of those decisions is where the money actually moves, and it is covered in implant-supported against snap-on designs.