While a dental inlay addresses the crevices and gaps between the teeth’ cusps, an onlay covers a bigger portion of the tooth’s surface while filling the cavity and cusps. The choice between a porcelain inlay and onlay depends on the extent of your tooth damage.
Porcelain Inlays – A porcelain inlay is a customized restoration filling designed with composite material, gold, or tooth-colored porcelain. Porcelain inlays are popular because they resemble your natural tooth. After it is engineered in a professional dental laboratory, your dentist permanently cements the inlay into the tooth. Inlays can be utilized to conservatively repair teeth with large defective fillings or damaged by decay or trauma. They are an ideal alternative to conventional silver and composite fillings. Also, they are more conservative than crowns because less tooth structure is removed in the preparation of inlays. As with most dental restorations, inlays do not always last forever and may someday require replacement. However, they are highly durable and will last many years, giving you a beautiful, long-lasting smile.
Porcelain Onlays – An onlay, sometimes called a partial crown, is a customized restoration also made of composite filling, gold, or tooth-colored porcelain. Porcelain onlays are the most natural choice for many patients because they blend seamlessly with the smile. A professional dental laboratory crafts onlays that are permanently cemented onto the tooth by your dentist. They can be utilized to conservatively repair teeth with large defective fillings or damaged by decay or trauma. Onlays are an ideal alternative to crowns (caps) because less tooth structure is removed during their preparation. Onlays are essentially identical to inlays, except that one or more of the chewing cusps have also been affected and need to be included in the restoration.
Reasons for inlay and onlay restorations:
- Broken or fractured teeth
- Cosmetic enhancement
- Decayed teeth
- Fractured fillings
- Large fillings