A Guide to the Different Types of Dental Implant Crowns: Materials, Pros & Cons

Dental implant crowns are one of the wonders of dentistry that add the finishing touch once your implants have been placed. The crown is the visible part of the restoration that mimics the appearance and functionality of a natural tooth.  Understanding the different types of implant crowns is essential as choosing the right material can impact durability, functionality, and overall success. This article explores 5 different types of implant crowns together with their pros and cons and attachment methods. So, let’s dive in ….

Types of implant crowns based on material

Various materials are used for implant crowns, each having unique benefits in terms of aesthetics, strength, and affordability. Here are some of the most common materials used in dentistry today:

1. All ceramic (or porcelain) crowns

Made entirely from ceramic or porcelain, these implant crowns stand out for their remarkable resemblance to natural teeth. Because they are metal-free they’re ideal for anyone suffering from metal allergies, and what’s more, there’s no risk of a dark line showing through at the gum line. Dentists recommend all-ceramic crowns for visible teeth that show when you smile, such as incisors and canines. These exquisite crowns can be color matched to your surrounding teeth and due to their natural translucency fit seamlessly into a smile.

While they excel in looks, ceramic implant crowns are not as strong as other types of crowns. They are prone to crack or chip and unsuitable for teeth such as molars that need to withstand heavy biting forces.

2. Porcelain fused to metal (PFM) crowns

PFM crowns are popular both for their aesthetics and strength. These implant crowns are fashioned from durable metal with a porcelain overlay that mimics the appearance of a natural tooth.

While they’re extremely versatile and suitable for front and back teeth, the downside is that sometimes the metal base can show as a dark line near the gum line, particularly when the gums recede.

3. Zirconia crowns

Crafted from an advanced ceramic material known as zirconium dioxide, these crowns are highly regarded for their biocompatibility and exceptional strength. They’re resistant to chipping and almost indestructible and have a natural translucency similar to natural teeth. They’re an ideal choice for those needing durable restorations for their molars capable of handling the strongest chewing forces.

On the downside, zirconia crowns are more expensive than other options and can be abrasive to opposing teeth.

4. Metal crowns

Metal implant crowns are a long-lasting robust option fashioned from base metals such as nickel or chromium and alloys such as gold or palladium. They are incredibly strong and can withstand the strongest chewing and biting forces.

On the downside, their noticeable appearance means they are typically limited to non-visible teeth. Patients opting for gold or palladium can also expect to pay premium prices depending on the current market values.

5. Hybrid composite crowns

These dental implant crowns combine composite resin with a zirconia or metal core. While they’re often used for temporary solutions they also provide a budget-friendly alternative for patients looking for customizable and functional crowns.

While composite resin is lightweight and easily color matched to surrounding teeth, it’s not as durable as porcelain or zirconia. On the downside and with heavy use, composite crowns can discolor and show signs of wear.

So now you have a better understanding of the materials commonly used for dental implant crowns, let’s look at how the crowns are attached to the implants.

Types of implant crowns based on design

Having selected the appropriate material for your implant crown, the next step is attaching it to the abutment – the connector piece between the implant and the crown. There are two main methods:

Screw-retained crowns

A screw-retained crown has a small opening on the occlusal or lingual side, allowing it to be fastened directly to the abutment with a screw. The main benefit is that it simplifies removal for adjustment, maintenance and cleanings. Additionally, it eliminates the risk of excess cement which could lead to complications.

The downside of a screw-retained crown is that the impact hole may affect aesthetics, particularly on visible front teeth. Another drawback is that the crown may loosen over time and patients will need a dentist to tighten the screw back up.

Cement-retained implant crowns

This type of implant crown is popular for its appearance. It’s bonded to the abutment with dental cement avoiding the appearance of visible screw holes. They’re the best option for restorations at the front of the mouth.

However, the downside to cement-retained implant crowns is that if adjustments or repairs are required it’s difficult to remove the crown. Furthermore, any excess cement left behind during the initial placement must be removed meticulously to avoid gum infection or irritation.

Choosing the right crown for you

Choosing the best implant type for your situation involves considering various factors:

• Location of the tooth – Front teeth require the most appealing aesthetics which makes all-ceramic crowns an obvious choice.
• Allergies – Those with metal allergies should opt for metal-free dental implant crowns.
• Bite force – Molars at the back of the mouth need more durability so zirconia or metal might be a good choice.
• Budget – Cost varies depending on the material, so if your budget is tight speak to your dentist about choices that align with your spending limits.

Ready to restore your smile?

Choosing the ideal dental implant crown can be challenging, but you’re not alone. Our experienced team is here to guide and offer advice to help you find the best solution for your dental needs and preferences. Contact Chesterfield Dentistry today to schedule a free implant consultation. Call us today at 314-936-3621 or use our online booking system.