The question “What is an onlay filling?” is often researched by those seeking durable and aesthetic dental restorations. Onlay fillings offer a more effective and long-lasting solution for teeth with large structural damage compared to traditional fillings.
What Is an Onlay Filling?
An onlay filling is a custom-fabricated porcelain or composite restoration made in a laboratory. It covers not only the chewing surface of the tooth but also one or more of its cusps (the raised points), delivering superior functional and aesthetic results.
What Is a Traditional Filling?
A traditional filling involves cleaning out the decayed or damaged tooth tissue and filling the cavity with composite resin or amalgam material. This method is typically used for small to medium-sized restorations.
Key Differences Between Onlay and Traditional Fillings
| Feature | Onlay Filling | Traditional Filling |
| Fabrication Process | Made in a laboratory | Placed in a single visit at the dental office |
| Coverage | Extends over one or more cusps as well as the chewing surface | Fills only the decayed area |
| Durability | High | Moderate |
| Aesthetics | Matches natural tooth color almost perfectly | Composite can match, amalgam is metallic |
| Treatment Time | Completed over 2–3 appointments | Usually done in one appointment |
When Is an Onlay Filling Preferred?
- When a large portion of the tooth is damaged but a full crown isn’t required
- In areas where aesthetics are a priority
- If a longer-lasting solution is desired
Advantages of Onlay Fillings
- Provides an exact fit and resists fracture
- Virtually undetectable thanks to perfect color matching
- Withstands chewing forces effectively
- Preserves maximum natural tooth structure
For Long-Lasting Dental Restorations, Contact Megadentist
To learn more about onlay fillings and other advanced dental restoration options, get in touch with Megadentist.
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