Dental Inlays and Onlays Castroville, TX
Dental crowns and fillings are pretty common procedures used to fill in cavities and decay. However, there are alternatives out there. Dental inlays and onlays can also be used. They are stronger than a filling, but not as invasive as a crown, which may involve having to reshape the tooth.
It is helpful to think of inlays and onlays as the middle ground between fillings and a crown. Dental inlays and onlays are available at Town Square Dental in Castroville and the surrounding area. Call us at (830) 355-4266 to schedule an appointment to learn if this treatment option could work for you.
Inlays and Onlays Explained
An inlay is a molded and fitted filling used to treat minor tooth decay, fracture, or other dental damage. It is most often used to restore a tooth that has a cavity that does not extend past the center. They are created using an imprint of the affected area.
Getting a dental inlay fitted onto your tooth is relatively simple. Once the area has been cleaned of decay, an impression will be taken and sent out for manufacturing. The inlay will be made out of tooth-colored porcelain or composite resin material. It is then bonded to your tooth.
Onlays also fit inside the tooth but can extend further over the tooth than an inlay. They are also called partial crowns. Dentists choose this option when a cavity is too big for a standard filling, or the tooth is at risk for cracking. An onlay will strengthen the tooth along with protecting the decaying area.
The dentist prepares the tooth similar to a filling. A temporary onlay is placed over the cavity and an impression is sent out to make the permanent onlay out of porcelain or composite material. With an onlay, more of the tooth's structure is preserved.
Inlays and onlays are typically made of similar, tooth-colored materials. While they both are used to fill in areas of decay, an onlay can work for a larger area, including the cusps, or edges, of the tooth. Compared to traditional fillings, inlays and onlays can increase tooth strength.
“Inlays and onlays are typically made of similar, tooth-colored materials.”
Inlay vs. Filling
Similar to the onlay and crown comparison, there are several things to keep in mind when looking at inlays versus fillings. Traditional fillings are typically recommended for minor cavities, while inlays can be used to fill larger cavities that are not severe enough to need a crown. While inlays are more durable than fillings, fillings can be placed much more quickly. An inlay takes at least two visits - one for the impression to be made and one for the placement.
“Similar to the onlay and crown comparison, there are several things to keep in mind when looking at inlays versus fillings.”
Onlay vs. Crown
An onlay is generally used when a patient has a small hole that is only a tad larger than an inlay or old filling. In most cases, an onlay can cover the cavity hole and surrounding area. Onlays are a less aggressive restoration treatment than crowns as a smaller amount of tooth structure needs to be removed.
On the other hand, crowns are caps or covers used to restore the function and appearance of a tooth but replace the tooth itself. According to the article on caps and crowns, "Crowns are indicated for teeth with very large fillings, teeth that have had a root canal, fractured teeth, worn teeth due to grinding, and misshapen and/or discolored teeth." The key distinguishing factor a dentist will use to determine the right choice for a patient is the size of the cavity.
“The key distinguishing factor a dentist will use to determine the right choice for a patient is the size of the cavity.”
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Benefits of Inlays and Onlays
With any tooth restoration procedure, the goal is to save as much of your original tooth as possible. Inlays and onlays allow the dentist to preserve more of your natural tooth structure. This not only makes cleaning your teeth easier but is also better for your long-term oral health.
Inlays and onlays are also durable and long-lasting. Inlays can last as long as 30 years when taken care of properly. They are also designed to blend with your natural tooth color.
“With any tooth restoration procedure, the goal is to save as much of your original tooth as possible.”
Questions Answered on This Page
Q. Should I get an onlay or a crown?
Q. Can you explain inlays and onlays?
Q. What is the difference inlay vs. filling?
Q. What are the benefits of inlays and onlays?
People Also Ask
Q. How can a person's diet help with tooth decay?
Q. How do lifestyle choices affect dental health?
Q. How can someone find out what procedures their dental insurance covers?
Q. What are dental crowns used for?
Q. What are composite fillings?
Q. How can dental cosmetics improve oral health?
Differences Between Inlays, Onlays, and Veneers
Veneers are customized coverings placed over the front part of the teeth. They are not meant to protect or treat the teeth and will not provide coverage against damage or decay. Before placing in the veneer, the dentist shaves down most of the tooth to make room for the full tooth-sized veneer. Since veneers are irreversible, if one becomes chipped or broken, the patient will have a cracked or missing tooth until it is corrected.
Inlays and onlays do much more to save the teeth and protect against further damage with protective, specialized dental material. Once an inlay or onlay fills the tooth, the gaping hole and surrounding area are sealed, making it easier to maintain oral health and prevent future decay. Veneers are cosmetic appliances used primarily to cover up damaged and decayed teeth, much like crowns and caps.
Frequently Asked Questions about Inlays and Onlays
Q. Does my insurance cover inlays and onlays?
A. Dental insurance coverage varies from person to person. You will want to reach out to your insurance provider directly to find out if they cover inlays and onlays. Our staff will help you determine any out-of-pocket costs.
Q. What is the difference between inlays and onlays?
A. An inlay is meant to fit in the center of a back tooth and covers only a portion of the chewing surface. An onlay will cover more of the tooth, such as the small points or ridges along the sides. Both inlays and onlays are made from impressions of the area so they are a perfect fit.
Q. Can I get an inlay or onlay in one visit?
A. Since inlays and onlays are made off-site, they require two office visits to be put into place. Once the decay and damaged material are removed, our dentist will make an impression of the site to be filled. A temporary covering will protect your tooth between visits.
Q. What can I expect after getting an inlay or onlay?
A. After the procedure, there is usually a little discomfort, but most patients can adapt to the new chewing surface quickly. Sometimes the tissues around the area worked on are sore or the tooth is sensitive to hot and cold. These issues should fix themselves in one or two days.
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Dental Terminology
Learn More About Inlays and Onlays Today
If you are considering replacing your old fillings and crowns or want to schedule a consultation appointment, call us at 830-355-4266 to speak to Town Square Dental. By taking full-mouth X-rays, a custom treatment plan will help to meet your needs.
Helpful Related Links
- American Dental Association (ADA). Glossary of Dental Clinical Terms. 2026
- American Academy of Cosmetic Dentistry® (AACD). Home Page. 2026
- WebMD. WebMD’s Oral Care Guide. 2026
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