Zirconia vs. Stainless Steel Crowns: Which is Best?

By Dr. Sepehr Nassiripour

Your Pediatric Dentist in Beverly Hills

Understanding Your Child’s Dental Options

Finding out that your child needs a dental crown can feel a little overwhelming for any parent. You might be picturing extensive procedures or worrying about how your little one’s smile will look afterward. As a pediatric dentist, I want to put your mind at ease immediately: this is a very common situation, and we have incredible tools today to fix it.

When a cavity is too large for a standard white filling, or if a tooth has developmental defects, a crown is the best way to save the tooth. The goal is always to preserve the baby tooth until it is ready to fall out naturally. This saves space for the permanent tooth and helps your child chew and speak properly.

The two biggest contenders in the world of pediatric restorative dentistry are Stainless Steel Crowns (SSCs) and Zirconia Crowns. Parents often ask me, “Dr. Nassiripour, which one should I choose?” The answer isn’t always black and white. It depends on the specific tooth, your child’s bite, and aesthetic preferences.

In this guide, I will break down the differences, pros, and cons of each option so you can feel confident in the decision we make together for your child’s oral health.

The Classic Choice: Stainless Steel Crowns

Stainless steel crowns have been the “gold standard” in pediatric dentistry for decades. If you saw a child with a silver tooth while you were growing up, that was a stainless steel crown. These are essentially pre-made metal caps that we trim and crimp to fit over the baby tooth.

Why We Still Use Them

Even with modern technology, there is still a very strong place for stainless steel. I often recommend them for back molars where heavy chewing takes place and aesthetics are less of a concern. Because the metal is thin and flexible, they are incredibly durable and forgiving.

Here are the main advantages of stainless steel crowns:

  • Durability: They are incredibly strong and rarely fracture. They can withstand the heavy grinding forces that many children exert on their teeth at night.
  • Retention: Because we can crimp the metal to hug the tooth tightly, they rarely fall off.
  • Less Tooth Reduction: This is a major medical benefit. Because the metal is so thin, I do not have to remove as much of your child’s natural tooth structure to fit the crown on.
  • Speed: The procedure is generally faster, which is a huge plus for young children who may have trouble sitting still for long periods.

The Aesthetic Downside

The obvious drawback here is the appearance. These crowns are silver. For back teeth, many parents don’t mind, but for teeth that show when the child smiles, stainless steel is rarely the first choice today.

The Modern Contender: Pediatric Zirconia Crowns

Now, let’s talk about the option that has changed the game in my practice: pediatric zirconia crowns. Zirconia is a type of ceramic that is incredibly strong—often referred to as “ceramic steel.” It is 100% metal-free and biocompatible.

The rise of zirconia has allowed us to offer a restoration that looks almost exactly like a natural tooth. When I place these, parents are often amazed that they cannot tell the difference between the crown and the neighboring natural teeth.

Why Parents Love Zirconia

In the age of social media and photos, aesthetics matter. We want children to feel confident in their smiles, not self-conscious about a silver tooth. Beyond looks, zirconia offers distinct health advantages:

  • Superior Aesthetics: They are white, translucent, and look natural.
  • Biocompatibility: The gums surrounding zirconia crowns tend to remain very healthy. The material is very smooth, which prevents plaque buildup better than metal.
  • Durability: Zirconia is virtually indestructible in terms of wear. It does not chip easily.
  • Hypoallergenic: For children with nickel or metal allergies, this is the safest option.

Head-to-Head: Durability and Strength

Both materials are strong, but they behave differently. Stainless steel wears down slowly over time, much like a natural tooth would. It is malleable. Zirconia, on the other hand, is extremely hard.

According to recent dental statistics, the success rate for pediatric crowns is very high. Data Point: Clinical studies have shown that zirconia crowns in primary teeth have a success rate exceeding 90% over a 12 to 24-month period, which is comparable to, and in some metrics superior to, traditional composites.

However, because zirconia is a stiff ceramic, it cannot be crimped or bent. It relies on a “passive fit.” This means the preparation of the tooth must be precise. If a child has a very heavy bite or grinds their teeth aggressively (bruxism), I have to evaluate if zirconia is safe, or if it might cause wear on the opposing natural teeth.

The Procedure: How They Differ

This is where the difference matters most to me as the dentist, and to your child as the patient. The preparation for these two crowns is different.

Stainless Steel Prep

As I mentioned, stainless steel is forgiving. I remove the decay, slightly trim the tooth, and snap the crown on. It works well even if the gum line is a bit inflamed or if there is bleeding, as the cement and the crimping action seal the tooth effectively.

Pediatric Zirconia Crowns Prep

Placing pediatric zirconia crowns requires a bit more artistry and patience. Because the material is thicker than metal, I must remove slightly more tooth structure to ensure the tooth doesn’t look bulky. Furthermore, the fit relies on the tooth being shaped perfectly to slide into the ceramic cap.

Additionally, controlling moisture is critical. To get a good bond with the cement, the tooth must be kept dry. If a child is very young or has difficulty cooperating, keeping the area dry can be a challenge. However, in my experienced hands, we manage this efficiently to ensure a long-lasting bond.

Gingival Health (Gum Health)

I pay close attention to how the gums react to restorations. One of the things I love about zirconia is how “kind” it is to the soft tissue. The surface is highly polished ceramic. Bacteria struggle to stick to it.

With stainless steel, the margins (edges) of the crown can sometimes trap plaque if not brushed perfectly, which can lead to gingivitis (gum inflammation). With zirconia, I frequently observe that the gums look pink and healthy immediately after the healing process, provided the parents help the child maintain good hygiene.

The Cost Factor

We have to be honest about the financial aspect. Generally speaking, stainless steel crowns are less expensive. They have been around longer and the material costs are lower. Most dental insurance plans cover stainless steel crowns at a high percentage because they are viewed as the basic standard of care.

Pediatric zirconia crowns usually carry a higher cost due to the expensive material and the more intricate manufacturing process. Some insurance plans are starting to cover them, but others may only pay the fee for a stainless steel crown, leaving the parent to pay the difference (often called an upgrade fee).

However, when you weigh the cost against the psychological benefit of a natural-looking smile, many parents find the investment worth it.

Data Point: The Prevalence of Cavities

You might be wondering, “Why does my child even need a crown? Can’t we just fill it?” It helps to look at the big picture. Data Point: According to the Centers for Disease Control and Prevention (CDC), approximately 45.8% of youth aged 2-19 have had dental caries (cavities) in their primary or permanent teeth.

When these cavities become large, fillings essentially weaken the tooth. A filling relies on the remaining tooth structure to hold it in place. If 50% of the tooth is decayed, a filling is likely to fail, fall out, or cause the tooth to crack. A crown, whether metal or zirconia, acts like a helmet, protecting the entire tooth from bacteria and breakage.

Making the Decision: My Professional Advice

So, which is best? As with most things in medicine, it depends on the clinical presentation.

I typically recommend Stainless Steel Crowns when:

  • The decay is on a back molar that is not visible when smiling.
  • The child has a severe grinding habit.
  • The child is very young and needs the fastest procedure possible.
  • Financial constraints are a primary concern.

I typically recommend Pediatric Zirconia Crowns when:

  • The decay is on front teeth or visible premolars (the “smile zone”).
  • Parents prioritize a natural, white appearance.
  • The child has a known metal allergy.
  • The tooth structure allows for the specific preparation required for ceramics.

For more detailed information on restorative options for children, I recommend reading this article from the American Dental Association’s MouthHealthy site, which provides a great overview of dental crowns.

Caring for the Crown

Regardless of whether we choose the “Iron Man” tooth (stainless steel) or the “Princess/Super Star” tooth (zirconia), aftercare is the same. The crown protects the top of the tooth, but the gum line is still vulnerable.

You must ensure your child brushes twice a day and flosses daily. Flossing is actually easier with crowns because the contacts between the teeth are smooth. Sugary snacks and sticky candies should still be limited. Just because the crown can’t get a cavity doesn’t mean the tooth underneath or the gum around it is invincible.

Your Child’s Smile is in Good Hands

At the end of the day, both zirconia and stainless steel crowns are excellent, time-tested solutions to save baby teeth. My priority is always your child’s health and comfort. I want them to leave my office feeling proud of their smile.

If aesthetics are your main concern, pediatric zirconia crowns are a fantastic technological advancement that I am proud to offer. If durability and cost are the drivers, stainless steel remains a heroic option that has saved millions of teeth.

During our consultation, I will show you examples of both and look at your child’s specific X-rays. Together, we will choose the armor that best fits your child’s tooth, ensuring they can eat, speak, and smile with total confidence until the Tooth Fairy eventually comes to visit.

Other Related Blogs

Other Services