Zirconium crowns are stronger, while E-Max looks more natural for front teeth.
There is no definitive answer to the question of whether zirconium crowns are superior to E-Max ones, because the answer depends entirely on each patient. Zirconia is famed for its strength and durability, whereas E-Max is mostly preferred because it emulates natural transparency and aesthetics very well.
In fact, either of the two materials is capable of delivering top-notch clinical outcomes provided that the dentist makes optimal use of them in situations where the respective materials are ideal. The latest research has demonstrated that survival rates of both monolithic lithium disilicate and zirconia crowns, after five years, are very similar to each other.
Dentists such as Polen Akkılıç and Prof. Dr. Coşkun Yıldız at Lema Dental Clinic can make an assessment of factors including tooth condition, occlusion, tooth color, gum health, and smile goals before making a decision about which material is the most ideal for your case.
Dental Restorations Explained
Different from each other, zirconia and e-Max both belong to the group of tooth-colored ceramic materials without metal.
With great fracture resistance, zirconia is regarded as the strongest ceramic material available in the market. The latest developments in dentistry have also made these zirconia ceramics more translucent, and as such they can deliver better results aesthetically compared to earlier versions.
In addition to its strength, E-Max is also a very optically favorable material. E-Max is a lithium disilicate glass ceramic type. It is often selected to replace the teeth of a patient,t especially if it is a front tooth. Light can penetrate through this E-Max in almost the same manner as it does through tooth enamel, giving you a much prettier smile.
The major advantages are clearly outlined in the following comparison table:
| Feature | Zirconia Crowns | E-Max Crowns |
| Material | Zirconia ceramic | Lithium disilicate ceramic |
| Primary Benefit | Strength and long-lasting durability | Natural tooth-like appearance |
| Translucency | Good to very good, especially with newer zirconia | Very high translucency |
| Masking Dark-Colored Teeth | Very good | Depends on thickness and shade |
| Front Teeth | Suitable, especially when strength is needed | Highly suitable for aesthetic areas |
Zirconia Crowns: The Ultimate in Durability
Among all restorations, zirconia crowns are best at withstanding intense chewing forces.
Zirconia can be used on front or back teeth, and it is quite a suitable choice when the tooth requires more coverage.
A further benefit of zirconia is its capability of hiding dark tooth structures. This can indeed be a very important aspect when the discoloration is severe, or there is a large existing restoration of the tooth.
At present, the most transparent of the different types of zirconia is not only better-looking but also stronger.
Different kinds of zirconia, however, vary in the way they mix the degrees of translucency with the strength.
Consider zirconia when:
- If your tooth requires a strong restoration, i.e., there is a very high biting force.
- If the tooth is a back one.
- If discoloration is significant and needs to be masked.
- If greater coverage is required structurally.
E-Max Crowns: The Most Beautiful Smile
When teeth in the smile zone have to be restored, E-Max crowns are almost always the go-to option because of their beautiful look. Lithium disilicate is quite translucent, so it can mimic the natural shade variety of teeth, just as real teeth have variations.
Because of this feature, E-Max crowns would suit a front tooth that requires reflection of light, shade matching, and a natural-looking effect very well.
Even though there are some reports regarding the performance of the lithium disilicate crowns after a shorter and medium amount of time, these studies showed that they still have a great clinical performance. One of the reasons they might not always be the top choice always the top choice.
E-Mox is chosen when the goal is a tooth restoration that looks almost like a real tooth or, if the tooth has an adequate amount of healthy and sound dentin that can support such a restoration.
Zirconia vs. E-Max Pros and Cons
It is not that one material is stronger or more beautiful, and the right one really depends on several factors.
Zirconia is highly durable, wear-resistant, and able to hide discoloration, but some versions of zirconia can have less natural shade.
E-Max offers a very nice look with a beautiful translucency, so it is almost like having a natural tooth, but it can wear out quicker or be the best choice when the bite is very heavy, or the restoration requires being very opaque.
In clinical testing, results indicate that zirconia as well as lithium disilicate restorations are both able to give an ideal fit and achieve high standards of care.
Hence, one should go for a material that matches the nature of the teeth and not stick to the idea of using ceramics for all cases.
The Key Considerations When Selecting a Crown
It is a clinical examination that starts the whole process. The dentist will have a picture of the restoration of the tooth both in terms of function and appearance.
Main factors influencing the decision are the position of the tooth, strength and thickness of enamel, current fillings, color of the tooth, bite pressure, bruxing, dental health of the patient, and the requirement for translucent effects, among others.
Dentist Polen Akkılıç and Prof. Dr. Coşkun Yıldız can determine these matters during a restorative treatment consultation in the Lema Dental Clinic.
Zirconia is probably the ideal combination for some patients between strength and appearance. But for others, the most transparent and natural smile zone is provided by E-Max.
To wrap things up, the best choice for a crown is one that fulfills both the clinical needs of the tooth and the aesthetic preferences of the patient. The crown must match the dental condition and thepatient’s’ expectations. The best choice will be determined based on these two main factors.
FAQ
Which Is Cheaper, E-Max or Zirconia?
The cost of restorations differs mainly by the type and the quality of the materials used, the work that goes on at the dental laboratory, the number of crowns to be placed, and other possible requirements related to the treatment itself. There are no exact price differences that can be attributed either to specific dentists or regions. Comparing your individual treatment plan is the best way to get a realistic idea of the overall costs.
Is Zirconia Superior to E-Max?
Generally, no. Although zirconia has the best strength and masking of discoloured natural tooth structure behind it, e-max will always be the one with the most natural look and translucency, as well as one that can really stand out aesthetically when one needs to work only on the fronts of the teeth (which they are used for mostly).
Which Requires Less Preparation, E-Max or Zirconia?
How much of the tooth has to be removed depends on various factors: the type of the crown, the thickness of the material,d and the position.
Can Zirconia Crowns Look as Nice as the Original Teeth?
Certainly they can. With the advances of modern technologies, there’s no doubt any more which material is more aesthetically pleasing. In other words, highly translucent zirconias now have an appearance almost similar to that of natural teeth due mainly to their extreme translucency. In addition to this, new types of zirconia materials have further improved their translucency and overall natural look.
What Are the Costs of E-Max and Zirconia Crowns Usually?
It will still not be easy to determine an exact worldwide average, because there are many factors involved (mainly the country where the treatment is delivered, the laboratory, type of dental material chosen, and complexity of restoration), which influence the price to a great extent. In any case, an exact price will be given at Lema Dental Clinic only after they complete the dental and treatment requirements examinations.
References
- PubMed – Clinical Performance of Lithium Disilicate and Zirconia CAD/CAM Crowns – Systematic review comparing clinical outcomes and complications.
- PubMed – Survival and Complication Rates of All-Ceramic Single Crowns – Recent evidence on five-year survival of lithium disilicate and zirconia crowns.
- PubMed – Translucency of Recent Zirconia Materials – Systematic review of modern zirconia and its optical properties.
- PubMed – Clinical Outcomes of Lithium Disilicate Crowns – Review of survival and clinical performance of lithium disilicate restorations.
