Inlays & Onlays

What Are Inlays & Onlays?

Inlays and onlays are custom-made dental restorations used to repair teeth with moderate decay or damage. Often referred to as indirect fillings, they are fabricated in a laboratory or via digital milling before being bonded to the tooth. An inlay is used to treat decay within the cusps (the bumps on the chewing surface), while an onlay is more extensive, covering one or more cusps to provide additional structural support and protection.

How It Works

• Preparation: The dentist removes the decayed or damaged portion of the tooth and cleans the area.
• Impressions: A physical mold or digital scan is taken to ensure the restoration fits the unique shape of your tooth.
• Temporary Restoration: A temporary filling is typically placed to protect the tooth while the permanent piece is being manufactured.
• Fabrication: A dental laboratory creates the inlay or onlay from materials such as porcelain, composite resin, or gold. Some clinics use CAD/CAM technology to mill the restoration on-site during a single visit.
• Bonding: Once ready, the dentist checks the fit and permanently bonds the restoration to the tooth using high-strength dental cement.

Who It's For

• Patients with cavities that are too large for traditional composite fillings.
• Individuals with fractured or cracked teeth that do not yet require a full crown.
• Those looking for a more durable and long-lasting alternative to standard fillings.
• Patients who want to preserve as much of their natural tooth structure as possible.

Benefits

• Tooth Preservation: They require less removal of healthy tooth structure compared to dental crowns.
• Durability: Made from high-strength materials, they can last between 10 to 30 years with proper care.
• Aesthetics: Porcelain and composite options are color-matched to your natural teeth for a seamless look.
• Structural Strength: Unlike traditional fillings, which can weaken a tooth, inlays and onlays can actually help strengthen the remaining tooth structure.

Limitations & Risks

• Cost: They are generally more expensive than standard fillings due to the custom fabrication process.
• Multiple Visits: Unless the clinic offers same-day technology, the process usually requires two separate appointments.
• Sensitivity: Some patients may experience temporary temperature sensitivity following the procedure.
• Marginal Decay: If oral hygiene is not maintained, new decay can form at the edges where the restoration meets the natural tooth.

Questions to Ask Your Clinic

• Which material (porcelain, composite, or gold) is most suitable for my specific tooth?
• Do you have in-house CAD/CAM technology for same-day restorations?
• How many years do you expect this specific restoration to last?
• Is an onlay a better long-term investment for my tooth than a large filling?

Disclaimer

The information provided here is for informational purposes only and does not constitute medical advice. Always consult with a qualified dental professional to determine the best treatment for your specific oral health needs.