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What Does it Mean to Get a Dental Onlay?

Posted on 12/15/2025 by Smile Makes Dental Center

Let's talk about keeping your teeth healthy and strong. Sometimes, a filling isn't quite enough to fix a tooth that's been damaged by decay or injury. That's where a dental onlay might be the perfect solution. Think of it as a step up from a regular filling, offering more support and protection for your tooth.

What is a Dental Onlay?

A dental onlay is a type of restoration used in restoration dentistry to repair damaged teeth. It's different from a regular filling because it covers one or more cusps (the pointy parts) of your tooth. Imagine your tooth like a little house; a filling just patches a small hole in the wall, while an onlay replaces a whole section of the roof.

Onlays are custom-made in a dental laboratory to precisely fit the prepared tooth. They can be made from materials like porcelain, gold, or composite resin. Porcelain onlays are popular because they can be matched to the natural color of your teeth, making them virtually invisible.

When is an Onlay Needed?

So, how do you know if you need a dental onlay instead of a filling? Your dentist will consider a few factors. Onlays are often recommended when:

•	A tooth has a large cavity or decay that extends to one or more cusps.
•	A tooth is cracked or fractured, but not severely enough to need a full crown.
•	A tooth has an existing filling that is failing or needs to be replaced.
•	More durable and long-lasting restoration is desired compared to a large filling.

Onlays are a great way to preserve as much of your natural tooth structure as possible. Unlike crowns, which cover the entire tooth, onlays only cover the damaged portion.

The Onlay Procedure: What to Expect

Getting a dental onlay usually takes two appointments.

•	First Appointment: Your dentist will examine the tooth, take X-rays, and prepare the tooth by removing any decay or old fillings. Then, they'll take an impression (mold) of your tooth. This impression is sent to a dental laboratory, where the onlay is custom-made. You’ll likely receive a temporary filling to protect the tooth while you wait for the permanent onlay.
•	Second Appointment: When your custom-made onlay is ready, you'll return to the dentist's office. The temporary filling is removed, and the onlay is carefully fitted and bonded to your tooth. Your dentist will make sure the onlay fits perfectly and that your bite is comfortable. Finally, the onlay is polished for a smooth finish.

Caring for Your Onlay

Once your onlay is in place, taking care of it is just like taking care of your natural teeth. Good oral care habits are essential for maintaining the health of your onlay and the surrounding teeth. This includes:

•	Brushing your teeth twice a day with fluoride toothpaste.
•	Flossing daily to remove plaque and food particles from between your teeth.
•	Visiting your dentist regularly for check-ups and cleanings.
•	Avoiding chewing on hard objects, such as ice or hard candy, which could damage the onlay.

With proper care, a dental onlay can last for many years, providing a strong and beautiful restoration for your tooth. It’s a great tool in modern restoration dentistry. It's all part of keeping your smile healthy and bright.

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Falls Church, VA
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313 Park Avenue, Ste 101
Falls Church, VA
(571) 648-1713
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Fairfax, VA
(571) 773-6563
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19 Catoctin Cir NE
Leesburg, VA
(540) 882-0421
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Tysons, VA
(571) 773-6582
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Woodbridge, VA
(571) 628-8583
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About Smile Makers Dental Center - Dentists in Virginia
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Smile Makers Dental Center, 19 Catoctin Cir NE, Leesburg, VA 20176 + (540) 882-0421 + smilemakerscenter.com + 12/19/2025 + Key Phrases: dentist va +