If you've been told a tooth needs more than a filling but your dentist doesn't think you need a full crown, you may be hearing about inlays and onlays in Duncanville. They sit in the middle ground between the two, and for the right tooth they can be a conservative, long-lasting way to repair damage. Here is what they are, how they compare to fillings and crowns, and what to expect if your dentist suggests one.

What Are Inlays and Onlays?

Inlays and onlays are custom-made restorations, crafted outside the mouth and then bonded to your tooth. Both are usually made from porcelain or composite resin and are matched to your tooth color.

  • An inlay fits within the bumps (cusps) on the chewing surface of a tooth, filling the center of the tooth.
  • An onlay is a little larger. It covers one or more of those cusps as well as part of the chewing surface.

Dentists sometimes call them "partial crowns" for that reason: they repair a damaged area while leaving the healthy parts of your tooth intact.

How They Differ From a Filling

A traditional filling is shaped and hardened directly in your mouth in a single visit. That works very well for small and medium cavities. As the damaged area gets larger, though, a direct filling has less healthy tooth around it for support, and it can be harder to shape perfectly against neighboring teeth.

Inlays and onlays are made in a lab to fit the prepared tooth precisely. They tend to be stronger and more wear-resistant than direct filling material for larger repairs, and they can reinforce the tooth that's left.

How They Differ From a Crown

A crown covers the entire visible part of a tooth, which means more of the natural tooth has to be reshaped to make room. That's the right choice when a tooth is badly broken down or has had root canal treatment. But if enough healthy structure remains, many dentists prefer to save it. An inlay or onlay removes less tooth than a crown, which is why they're described as a more conservative option. If you want to compare, our inlays and onlays page and dental crowns page cover both in more detail.

When Might You Need One?

Your dentist will assess your tooth, usually with an exam and X-rays, but common reasons include:

  • A cavity that's too large for a filling to hold up well
  • A cracked or fractured cusp that hasn't damaged the whole tooth
  • Replacing an old, large filling that is breaking down or leaking
  • Wear or damage on the chewing surface of a back tooth

They aren't right for every situation. If the damage extends too far, if a crack runs deep, or if the tooth is too weak, a crown may be the better, more durable choice. And if the decay is small, a filling is often all that's needed. A good dentist will tell you which one fits, not push the most involved option.

What to Expect at Your Visit

Inlays and onlays typically take two visits, though exact steps vary with the practice and technology.

First visit. We numb the area, remove the decay or old filling, and shape the tooth. We then take an impression or digital scan so the restoration can be made to fit. You'll usually leave with a temporary covering to protect the tooth.

Second visit. We remove the temporary, check the fit and bite of the new restoration, and bond it in place. Small adjustments are made so it feels natural when you close your teeth together.

Some sensitivity to hot and cold is common for a few days afterward. If it lingers or your bite feels off, give us a call.

Porcelain or Composite?

Porcelain closely matches the color and translucency of natural enamel and resists staining well over time. Composite resin is another tooth-colored option. Your dentist will recommend a material based on the location of the tooth, how much force it takes when you chew, and your preferences.

How Long Do They Last?

Lifespan depends on the material, the size of the restoration, your bite, and how well you look after the tooth. Many last for years, often a decade or more, with good hygiene and regular checkups, but no restoration is permanent and we won't promise a number. Grinding your teeth can shorten the life of any dental work, so tell us if you clench or grind. A nightguard may be suggested.

Caring for Them

You care for an inlay or onlay the same way you'd care for a natural tooth: brush twice a day, floss daily, and keep up with professional cleanings. The tooth underneath can still develop decay at the edges of a restoration, so those regular cleanings and exams matter. Avoid chewing ice or using your teeth as tools.

Cost and Insurance

Inlays and onlays generally cost more than a standard filling and less than a crown. Many dental plans cover a portion of the cost, but benefits vary. We don't list prices in a blog post, but we always provide a written estimate before treatment so you can compare options, and we're happy to check your insurance benefits.

Come See Us

If you have a tooth that has a large filling, a crack, or a cavity that keeps getting bigger, we'd like to take a look. Minty Smiles is at 403 W Wheatland Rd in Duncanville, and we welcome patients from Cedar Hill, DeSoto, and Grand Prairie. We'll examine the tooth, explain what we see, and talk through the choices, whether that turns out to be a filling, an inlay or onlay, or a crown.

Frequently Asked Questions

What is the difference between an inlay and an onlay?

An inlay fits inside the cusps on the chewing surface of a tooth. An onlay is larger and covers one or more cusps in addition to the center of the tooth. Both are made to fit your tooth precisely, and which one you need depends on how much of the tooth is damaged.

Is an onlay better than a crown?

Neither is better across the board. An onlay preserves more of your natural tooth, so it's often preferred when enough healthy structure remains. A crown gives more coverage and protection when the tooth is badly damaged or weakened. Your dentist will recommend the one that fits your tooth.

Does getting an inlay or onlay hurt?

We numb the area first, so you shouldn't feel pain during the procedure. Some tenderness and temperature sensitivity afterward is normal and usually settles within a few days. If it doesn't, or if your bite feels uneven, let us know and we'll adjust it.

Ready to take care of your smile?

Book a visit at Minty Smiles — walk-ins welcome, or call ahead to reserve your time.