Zirconia vs E-max Ceramic: How to Choose
Published by The Seoul Dental Clinic · Meet the dentists
Zirconia is a dense ceramic valued for strength, and E-max is a glass-ceramic often chosen for its translucent look. Which suits a tooth depends on its position, bite force and how much natural tooth remains. On the clinic's list, zirconia crowns are ₩450,000 for a back tooth and ₩550,000 for a front tooth.
Two ceramic families
Both are metal-free, tooth-coloured materials used for crowns, and sometimes for inlays and onlays. They differ in how they are made and how they behave. Zirconia is typically milled from a dense block and is known for resisting fracture. E-max is a lithium-disilicate glass-ceramic, which tends to let light pass through more like natural enamel.
These are general material characteristics; your dentist applies them to a specific tooth.
Metal-free materials are often chosen by patients who want a natural look or who prefer to avoid metal margins showing at the gum. PFM crowns, which have a metal core, remain on the price list at ₩400,000 for those who prefer them.
How they compare in general
The comparison is general. It does not replace your dentist's judgement about your tooth.
| Zirconia | E-max ceramic | |
|---|---|---|
| Strength | High, suits heavy biters | Good, but generally less than zirconia |
| Look | Opaque to semi-translucent | More translucent, often chosen for visible teeth |
| Typical use | Back teeth, bridges, grinders | Front teeth, single crowns, inlays and onlays |
| Published price | ₩450,000 (back tooth) / ₩550,000 (front tooth) | Not on the published list; ask whether offered |
Price list as published; confirm at consultation. VAT may apply.
Other published crown options
For context, the list also shows PFM crowns at ₩400,000 and metal crowns at ₩300,000. Core build-up or post is ₩100,000 when the tooth needs a foundation. Inlays and onlays are published as resin inlay ₩200,000, ceramic inlay ₩300,000 and ceramic onlay ₩330,000.
Matching material to the tooth
Back teeth take the most chewing force, so strength usually comes first. Front teeth are seen all day, so appearance gets more weight. A patient who grinds at night changes the picture, as does a thin tooth wall or a crown on top of an implant.
Colour matching is another factor. Neighbouring natural teeth, any whitening you plan, and the thickness of the restoration all influence the final shade. If you plan to whiten, do it before choosing a crown colour.
Think also about the opposing teeth. A very hard restoration against a natural tooth can wear that tooth over time if the bite is heavy, so bite and clenching habits belong in the conversation. Tell your dentist if you wake with a sore jaw or know that you grind.
Finally, think about repair. A chipped crown may need to be replaced rather than patched, which affects long-term cost. Ask what is likely if it fails and what it would cost, so there are no surprises.
Questions to ask
- Which material do you recommend for this tooth, and why?
- Is the quoted price for a back-tooth or front-tooth zirconia crown?
- Is the core build-up included in the quote?
- What would happen if the crown chipped or loosened?
- Will I be given a record of the material used?
Crown, inlay or onlay?
If enough healthy tooth remains, a smaller inlay or onlay may be enough and conserves more natural structure. If the tooth is heavily broken down, or has had a root canal, a full crown is more usual. The material choice comes after this decision, so start with how much tooth you have.
Video: our dentists explain
In Korean. On YouTube, turn on subtitles and choose Settings → Subtitles → Auto-translate → English.
What this video covers
The dentists explain that a crown has no fixed lifespan: whether it needs replacing depends on its current condition, especially the margin where the crown meets the tooth, not on how many years it has been in place. They point out that a crowned tooth that has had a root canal may not hurt even when decay is present, and that a dark line near the gum can come from a darkened root-canal-treated tooth, the metal edge of a porcelain-fused-to-metal crown, or actual decay, so a dark line alone is not a reason to replace it. Checking involves a direct examination of the margin with a dental explorer combined with X-rays and symptoms, and a small problem can sometimes be repaired by removing the decay and filling it with resin instead of replacing the whole crown. Signs to watch for at home are food getting trapped, a bad smell, and a crown that feels loose, and they suggest flossing and using interdental brushes around crowns.
- Crown replacement depends on its condition, not its age
- A dark line at the gumline is not always decay; an exam and X-rays together are needed
- Watch for trapped food, odor, or a loose-feeling crown, and clean margins carefully
Frequently asked questions
Which is stronger, zirconia or E-max?
In general zirconia is regarded as stronger, which is why it is common for back teeth. Your dentist decides on the actual tooth.
Is E-max available at this clinic?
It is not on the published price list, so ask the clinic directly rather than assuming.
Why does a front-tooth zirconia crown cost more?
The list prices a zirconia crown at ₩450,000 for a back tooth and ₩550,000 for a front tooth. Ask the dentist what difference to expect on your tooth.
Do zirconia crowns last a lifetime?
No material is permanent. Longevity depends on your bite, hygiene and case, and no number of years can be promised.
English-speaking dentists in Seongnam
The clinic was founded by two brothers trained at Seoul National University who direct it together. Three further dentists hold Ministry of Health and Welfare specialist certifications. Full credentials →
Dr. Hyun Sung Park
Clinic Director
- Co-founder and joint clinic director
- DDS, Seoul National University School of Dentistry
- Master’s degree, SNU Graduate School of Dentistry
- Former staff, Dept. of General Dentistry, SNU Dental Hospital
- Microendodontics Programme, SNU
- Course completion, UCLA, USA
- Member, UPenn Endodontics Study Club, USA
- Certified Invisalign Provider
- Osstem Implant AIC Programme
- Member, International Congress of Oral Implantologists (ICOI)
Dr. Hyeonjoon Park
Clinic Director
- Co-founder and joint clinic director
- DDS, Seoul National University School of Dentistry
- Master’s degree, SNU Graduate School of Dentistry
- Former staff, Dept. of General Dentistry, SNU Dental Hospital
- Affiliate Associate Fellow, American Academy of Implant Dentistry (AAID)
- Certified Invisalign Provider; leads orthodontic treatment
- Course completion, UCLA, USA
- Member, UPenn Endodontics Study Club, USA
- Member, International Congress of Oral Implantologists (ICOI)
- Member, Seoul Prime Orthodontic Study Club
Dr. Yu Jin Kim
Dentist
- Board-certified specialist, Advanced General Dentistry (Ministry of Health and Welfare)
- Johns Hopkins University, USA
- Master’s degree, SNU Graduate School of Dentistry
- Former staff, Osaka University Dental Hospital, Japan
Dr. Min Ji Choi
Dentist
- Board-certified specialist, Conservative Dentistry
- Board-certified specialist, Advanced General Dentistry
- Internship and residency, Jeonbuk National University Dental Hospital
- Master’s degree in Conservative Dentistry, Jeonbuk National University
Dr. Jin Young Choi
Dentist
- Board-certified specialist, Advanced General Dentistry
- Clinical training, Faculty of Dentistry, University of British Columbia, Canada
- Master’s degree, Kyungpook National University Graduate School of Dentistry
- BA in English Language and Literature, Korea University
Choose a crown with a dentist
Bring photos of the tooth if you have them. We can discuss materials and cost in English near Taepyeong Station.