Dental Onlays vs Dental Crowns: Which One to Choose?

Sophia Nichols • August 6, 2024

In cosmetic dentistry and restorative dentistry, dental onlays and crowns are common options for fixing damaged teeth. So, what are they, and how do you decide which one to choose? This guide will help you understand dental onlays and crowns better. It will assist you in making smart choices for your dental health.


Exploring Dental Onlays: What You Need to Know

Dental onlays are a good option if you need something between fillings and crowns. They are made to fit well with the natural tooth. This helps to restore teeth that have some damage. Onlays give strength and look nice too. Let’s take a closer look at dental onlays and what they can do for you.


Definition and Purpose of Dental Onlays

A dental onlay is a special type of dental repair made just for your tooth. It is used to fix a damaged part of the tooth. Unlike fillings, which fill a space in the tooth, an onlay is a solid piece made outside and then attached to the tooth.


An onlay covers the chewing surface and might go over one or more cusps, which are the pointed parts of the biting surface. This is why it is called an "onlay," as it rests on top of the cusps.


Dental onlays are usually needed when a tooth filling is not enough to fix a decayed or damaged tooth, but there is still enough strong natural tooth structure to support it.


The Process of Getting a Dental Onlay

Getting a dental onlay usually requires two visits to the dentist. On the first visit, your dentist will clean your tooth and take out any decay or damage. They will then take an impression of your tooth to make a custom-fit onlay. You might get a temporary onlay to protect your tooth while the permanent one is made in a dental lab.


In the second visit, the dentist will take off the temporary onlay. They will check if the permanent onlay fits well. If it does, the dentist will use dental cement to bond the onlay to your tooth.


Understanding Dental Crowns: An Overview

A dental crown is like a protective helmet for a damaged tooth. It restores the tooth’s shape, size, strength, and look. You may need a crown when a tooth is badly damaged or decayed. Let’s explore dental crowns more closely.


What Are Dental Crowns and When Are They Used?

A dental crown is often called a crown. It is a tooth-shaped cap that fits over a damaged tooth. This cap covers the entire tooth above the gum line. Unlike onlays, which only cover part of a tooth, crowns fully protect the tooth.


Dental crowns are helpful in many cases. They are mostly used when a decayed tooth is too damaged for a filling or onlay. You might need a crown for a tooth that is severely decayed, cracked, broken, or weak from a root canal. Some people also use crowns for cosmetic purposes to hide a misshapen or discolored tooth.


The Procedure for Installing a Dental Crown

The process of getting a dental crown is like getting an onlay. It usually takes two appointments.


During the first visit, the dentist prepares the tooth. They remove any decay and shape the tooth for the crown. Then, they take an impression of the tooth. This impression helps make a custom-fit crown. To protect the tooth, a temporary crown is placed on top until the real crown is ready.


At the second appointment, the dentist removes the temporary crown. They check if the permanent crown fits well and matches the color. Once everything looks good, they cement the permanent crown onto the prepared tooth.

Comparing Dental Onlays vs Dental Crowns: Differences and Similarities

Both onlays and crowns are good treatments for fixing damaged teeth. They are different in how much of the tooth they cover, how much work is needed to prepare the tooth and their cost. To choose between them, think about how bad your tooth damage is, what you want for your smile, and how much you can spend.


Material Choices for Onlays and Crowns

Dental onlays and crowns can be made from different materials. Each material has its own good and bad points. Here are the most common materials:


  • Ceramic: Ceramic inlays and crowns look like natural teeth. They are strong and resist stains, but they can sometimes be too fragile.
  • Porcelain: Like ceramic, porcelain looks great and is strong. Many people choose it for natural-looking fixes.
  • Metal: Metal crowns, often made of gold alloys, are very strong and last a long time. However, their shiny color makes them less appealing for teeth that show.
  • Composite: Composite material is a kind of resin that matches the color of your natural teeth. While it's not as durable as porcelain or ceramic, it's usually cheaper.


Cost Comparison Between Onlays and Crowns

The cost of onlays versus crowns can vary based on factors such as the material used, the complexity of the case, and your location. The cost of an onlay is generally lower than that of a crown. This is because an onlay involves less tooth removal and is a less invasive procedure. However, the exact cost can vary depending on factors such as the materials used, the complexity of the procedure, and your geographic location.


Here's a simple table comparing the average costs:

Restoration Material Cost Range
Onlay Porcelain, gold, composite $800 - $1,500 per tooth
Crown Porcelain, metal, ceramic-metal $1,000 - $2,500 per tooth

It's important to note that these are just estimates, and your actual cost may vary.


Durability and Longevity: Which Lasts Longer?

Does an onlay last as long as a crown? Both dental onlays and crowns are very strong and last a long time during treatments. Studies show that onlays have a survival rate of 93.50%, while crowns have a slightly better rate of 95.38%. This shows that both are good choices for fixing damaged teeth.


Generally, crowns may last longer than onlays. Crowns usually last between 5 to 15 years, while onlays can last from 5 to 10 years. The lifespan of both types depends on things like the material used, your oral hygiene, and how you bite.


Which One Should I Choose?

The choice between dental onlays vs dental crowns should be made with your dentist. Your dentist will look at how much damage is on your tooth. They will also check your oral hygiene, where the tooth is located, and your goals for appearance. This will help them suggest the best treatment plan.


Cost is important, but the long-term health of your teeth should come first. Choosing the right restoration, whether it is a dental onlay or a crown, can help keep your natural teeth healthy and give you a confident smile.


Deciding between a dental inlay or crown can be overwhelming. That's where a skilled dentist comes in. At Green Pond Dental, our experienced professionals will carefully examine your teeth to determine the best course of action. We offer both inlays and crowns, ensuring you receive the optimal treatment for your unique dental needs.


Our commitment to patient comfort and satisfaction sets us apart. Let us help you achieve a healthy and beautiful smile. Schedule a consultation today to discuss your options.


Conclusion

In conclusion, when you choose between dental onlays vs dental crowns, you should think about a few important things. This includes how damaged your tooth is, how long the treatment will last, and how much it will cost. Dental onlays help save the tooth structure since they are less invasive, while crowns cover the whole tooth to give it better strength.


You should talk to your dentist to find out which option is best for you based on your dental needs. Knowing how onlays and crowns are different and similar will help you make a smart choice for good oral health and function. In the end, your choice will depend on your situation and your dentist's advice.


Frequently Asked Questions

  • Is an onlay better than a crown?

    Whether an onlay is inherently better than a crown depends on the specific situation. Onlays are generally more conservative, preserving more of the natural tooth structure. However, for severely damaged teeth, a crown might be necessary to provide adequate strength and protection. Ultimately, the best choice depends on the extent of the tooth damage and your dentist's recommendation.

  • Should I Do Onlays vs. Crowns After Root Canal?

    After a root canal, either an onlay or a crown might be necessary to protect the weakened tooth. The choice between the two depends on the extent of the damage. Onlay is suitable for moderate damage, an onlay preserves more of the natural tooth structure. While Crown is Necessary for extensive damage or when the tooth lacks sufficient strength. Ultimately, your dentist will determine the best option based on a thorough examination.

  • Can a dental onlay be replaced with a crown later?

    Yes, you can replace a dental onlay with a dental crown if you need to. This might happen if the tooth has further damage or if the onlay gets damaged and needs to be replaced. Your dentist can check the damaged part of the tooth and change your treatment plan based on what they find.

  • How do I care for my dental onlay or crown?

    Caring for your dental onlay or a dental crown is important. You should keep up with good oral hygiene. Brush your teeth and floss regularly. Make sure to visit your dentist for check-ups and cleanings. Also, try to avoid chewing on hard or sticky foods. This will help prevent damage and keep your restoration in good shape.

  • Are there any specific materials to avoid for sensitive teeth?

    If you feel sensitivity in your teeth, you should talk to your dentist before any dental work. For fillings, composite fillings could be a better option. They usually cause less sensitivity than metal fillings. If the entire tooth surface is sensitive, your dentist can help you choose different materials that are best for your natural tooth sensitivity.

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