Should my worn teeth be rebuilt in bonded composite or in ceramic, and how do I compare the two?

Why neither material wins every tooth

Worn teeth are rebuilt by adding material back where enamel and dentin have been lost. The two tooth-colored ways to do that are bonded composite resin, which the dentist shapes directly on the tooth in the chair, and ceramic, which is made outside the mouth from a scan or impression and then bonded on. Both can restore shape, length and bite contact. They differ in how they are placed, how they age, how they are fixed when something goes wrong, and what drives their cost.

The systematic reviews that have compared them do not crown a winner. A 2016 review of studies on severely worn teeth found a wide range of yearly failure rates for direct composite, a narrower range for indirect composite (composite made outside the mouth and bonded on) and a low rate for porcelain veneers, and concluded that there was no strong evidence that one material outperformed the others. A 2022 review of clinical studies covering materials ranging from metal-ceramic and gold crowns to glass-ceramics, zirconia and composite, found the studies too different from one another to pool and reported mixed results. In practice, the choice is made tooth by tooth, and many plans use both materials in the same mouth.

Four things to compare, one at a time

Repairability

Composite is the easier material to fix. A chipped or worn composite buildup can usually be roughened, re-bonded and reshaped in place, often in a single short visit, without removing the whole restoration. In a long-term clinical study of direct composite buildups on severely worn teeth, most of the restorations that developed a problem were repaired rather than replaced. Ceramic behaves differently: a small chip can sometimes be smoothed or patched with composite, but a fracture through a ceramic onlay, veneer or crown more often means remaking that piece.

If you expect to grind, clench or simply use your teeth hard, ask how each material would be repaired in your case, how long a repair visit usually takes, and how the office handles the cost of a repair.

Preparation: how much tooth is removed

Composite can usually be added to a worn surface with little or no drilling, because it bonds directly to enamel and dentin and does not need the same minimum thickness that ceramic requires to resist fracture. That matters on worn teeth, which have already lost structure. Ceramic needs room: a veneer or onlay usually requires a thin, even layer of tooth to be removed so the ceramic can be strong enough and sit flush, and a full crown requires the tooth to be reshaped all the way around. Removing enamel is not reversible, so a plan that moves straight to crowns on worn teeth deserves a clear explanation of why partial-coverage or additive options were ruled out.

A conservative sequence is often possible. Some plans open the bite with composite first, so that ceramic, if used later, can be thinner and require less drilling. Others reserve ceramic for the teeth that need the most rebuilt surface and keep composite on the rest.

Durability: what the reviews report

This is where expectations most often go wrong, so it is worth being precise about what the research shows and what it does not.

• Both materials have acceptable short- to medium-term survival in the studies available. A 2020 systematic review of direct composite for tooth wear judged survival acceptable over the short to medium term, while noting that the studies were short and small. The 2016 review reached a similar conclusion for direct and indirect materials.
• Composite shows more surface wear, chipping and need for repair, with wide variation between studies. In the 2016 review, yearly failure rates for direct composite ranged from under 1 percent to over 25 percent depending on the study, patient group and how failure was defined. One center's long-term series of composite buildups placed at an increased bite height reported mostly acceptable ratings up to about eleven years in a small group of patients, with the newer composite formulation showing less surface degradation.
• Ceramic tends to hold its shape, polish and color longer and resists wear, which is why it is often preferred when large surfaces must be rebuilt. Porcelain veneers were reported at a low annual failure rate in the 2016 review, though from very few studies, so the figure should be read cautiously.
• There is no strong evidence that one material is better overall. The reviews consistently call for longer, better-controlled comparisons. No estimate can reliably promise a number of years for either material in your mouth.

Ask the dentist how "failure" is defined in the plan you are offered. A composite chip smoothed and re-bonded in a short visit and a fractured crown that must be remade are both failures on paper but very different experiences.

Cost drivers (no prices here)

This guide does not quote fees, because the right estimate depends on an examination. It can explain what moves the number:

• Fabrication. Composite is built in the chair, so its cost is mostly clinical time. Ceramic adds design and fabrication, whether by an outside laboratory or an in-house milling system such as the one listed on this practice's biomimetic dentistry page, plus the bonding step, which may happen the same day or at a later visit depending on how the piece is made.
• Number of teeth and surfaces. Rebuilding six front teeth is a different project from rebuilding every tooth that touches when you close.
• Repairs and maintenance over time. Composite is usually cheaper to repair but may need repair more often; ceramic is usually repaired less often but costs more when it must be remade. Ask what a repair of each kind would cost.
• Supporting work. Treating the cause of wear, a night guard, bite adjustments and follow-up visits can appear on one estimate and not another.

For how to line up two quotes item by item, see How to compare dental treatment quotes without comparing only price and Full-mouth reconstruction costs: what makes two estimates so different?.

What changes the answer for your mouth

• The cause of wear, and whether it is controlled. Frequent dietary acids soften and erode enamel; grinding and clenching wear and can fracture teeth. If the cause continues, both materials wear faster, and composite shows it sooner. Short, worn teeth: what should be checked before rebuilding them covers the examination that should come first.
• Grinding. A heavy grinding habit raises the risk of chipping and wear with either material. It shapes which material and design are chosen for the teeth taking the most load, and it calls for a night guard regardless of material.
• How much enamel is left. The examination records whether each tooth still has enamel or is worn into dentin; ask how that affects the preparation and bonding of each option on each tooth.
• How many teeth, and where. Front teeth are seen when you smile; back teeth carry the heaviest chewing forces. Many plans use composite in one zone and ceramic in another.
• Esthetic expectations. Composite can look very natural and is easy to adjust, but it can pick up stain and lose polish over time. Ceramic holds its finish longer. If you are not sure you will like the new shape, composite lets you live with it first.
• Your own preference. Some patients prefer less drilling and accept more frequent small repairs; others prefer fewer visits over the years and accept more tooth removal up front. Neither is wrong.

The hybrid approach: composite first, ceramic where it keeps breaking

A common and reasonable plan treats composite as a long-term trial. The worn teeth are rebuilt in composite at the new bite height, the bite is tested and adjusted over months, and the patient finds out how the new shape feels and looks. Teeth that stay stable can simply be maintained. Teeth that repeatedly chip or wear can later be converted to ceramic onlays, veneers or crowns, and because the shape has already been proven, the ceramic can often copy it closely. This sequence keeps the first step largely additive and spreads cost over time, though it may mean more appointments overall. When a partial-coverage restoration may be discussed instead of a crown explains the middle options between a filling and a full crown.

Questions to ask before you decide

1. Which teeth would get composite and which ceramic, and why each one?
2. How much tooth would be removed for each option, and could a more conservative version work?
3. What happens when a composite chips, and when a ceramic piece fractures?
4. How is my cause of wear being addressed, and is a night guard part of the plan?
5. What maintenance is expected, and how often would you want to see me?
6. Can I have the plan in writing, tooth by tooth, with each item listed separately?

The next step

If your teeth look shorter, flatter or more translucent than they used to, the first step is usually an examination: photographs, a scan or impressions, a bite assessment and X-rays where needed, and a conversation about what is wearing the teeth. From there the dentist can say which teeth, if any, need rebuilding and where composite or ceramic fits. You can request a consultation through the appointment request page or call (805) 565-5111 during office hours. Loul Dental Studio lists full-mouth reconstruction and biomimetic dentistry among its services; ask the office which options apply to your situation.