Most people know about fillings and crowns. But there is a third option that many patients never hear about dental inlays and onlays. If a dentist has ever told you that your tooth has “too much damage for a filling but not enough for a crown,” then inlays and onlays might be exactly what you need. A dentist in Vancouver often recommends this type of treatment when a tooth needs strong support but still has healthy structure left.
What Are Dental Inlays?
Dental inlays are small restorations placed inside the grooves of a tooth. They are made in a dental lab and then bonded to the tooth surface. Inlays help restore chewing ability and stop further decay.
Inlays are used when tooth decay or damage stays within those cusps and does not spread to the outer edges. A dentist removes the decayed area, takes a precise impression of the tooth, and sends it to a dental lab. The lab makes a custom inlay that fits your tooth exactly. The dentist then bonds it permanently into place.
Inlays are stronger than regular fillings and last much longer often 10 to 30 years with proper care.
What Are Dental Onlays?
An onlay is similar to an inlay, but it covers more of the tooth. If the damage or decay has moved beyond the cusps and spread to one or more of the outer edges of the tooth, a dentist will recommend an onlay instead.
Onlays are sometimes called “partial crowns” because they cover a larger surface area than an inlay but still less than a full crown. They protect the chewing surface and one or more of the tooth’s sides.
Just like inlays, onlays are custom-made in a lab and bonded firmly to the tooth. They restore both the shape and function of the damaged tooth.
How Are Inlays and Onlays Different from Crowns?
This is where many patients get confused. Here is a clear comparison:
Coverage
- Inlay — Fits inside the tooth, between the cusps
- Onlay — Covers the cusps and extends to one or more outer sides
- Crown — Covers the entire tooth from top to gum line
Tooth Removal
A crown requires removing a significant amount of healthy tooth structure so the crown can sit over the whole tooth. Inlays and onlays are more conservative. The dentist removes only the damaged area and preserves as much of the natural tooth as possible.
When Each Is Used
|
Situation |
Best Option |
| Small to medium decay inside the tooth | Inlay |
| Larger decay spreading to the edges | Onlay |
| Severely broken or weak tooth | Crown |
Strength and Fit
Inlays and onlays have an extremely precise fit. They are custom-made to match your tooth exactly, which means less chance of bacteria getting in. Crowns also fit well, but they require more removal of the original tooth.
Why Would a Dentist Recommend Inlays or Onlays?
A dentist near you may suggest an inlay or onlay when:
- A cavity is too large for a regular filling
- An old filling is broken or failing
- The tooth is cracked, but the damage is not severe enough for a crown
- The patient wants to preserve as many natural teeth as possible
Inlays and onlays are restorative dental treatments used to repair damaged teeth. They are not as small as a simple filling and not as extensive as a full crown. A dentist may suggest them when a tooth has moderate decay or damage. They help restore tooth shape, improve chewing, and protect the remaining natural tooth structure.
How Long Do They Last?
With good brushing, flossing, and regular dental visits, inlays and onlays can last 20 to 30 years. That is often longer than standard fillings.
Call City Square Dental Center Today
If you have a toothache or just need a checkup, we are here to help. Our dental clinic takes care of your teeth, so they stay strong and clean. We fix cavities, clean your teeth, and make sure your gums are healthy. Our team wants you to have a great smile.
Call City Square Dental Center today to book your visit.
FAQs
- Are inlays and onlays painful to get?
No. The dentist uses local anesthesia during the procedure. Most patients feel little to no discomfort. - How many dental visits are needed for an inlay or onlay?
Usually two visits. The first visit is for tooth preparation and impressions. The second visit is for bonding the final restoration. - Is an inlay or an onlay better than a filling?
For larger cavities, yes. Inlays and onlays are stronger, more durable, and fit more precisely than regular composite or amalgam fillings. - Can a dentist near you place an inlay or onlay on a front tooth?
Inlays and onlays are mostly used on back teeth (premolars and molars) because those teeth handle the most chewing pressure.
