When a tooth has lost a significant amount of its structure one of the options for treatment can be an inlay or onlay. An inlay fits into the tooth whilst an onlay also covers the top biting surface of the tooth. Both inlays and onlays are usually manufactured in a dental laboratory using precision models of your teeth and are used when a dentist thinks a direct filling will not offer enough protection to the tooth for the long term.
Your dentist will evaluate your tooth first to ensure that the tooth is alive and the remaining tooth tissue is healthy enough for your inlay or onlay. Your dentist will also ensure that you have enough tooth tissue left so that an inlay or onlay restores your tooth's looks and function for many years to come.
The stages for having an inlay or onlay are usually as follows:
Your dentist ensures that an inlay or onlay is the best treatment for your tooth. Tests including a dental x-ray will be used to ensure that as much information on the health and vitality of the tooth is available before a treatment decision is made.
Dependant on the type of inlay or onlay, your dentist prepares a very smooth walled cavity in your tooth to allow the inlay or onlay to fit well. Your dentist preserves as much of your natural tooth substance as possible during this preparation phase.
Your dentist usually takes precision impressions of your teeth so that models can be made to allow the dental technician to construct your inlay or onlay. Occasionally a high resolution digital image can be used to construct the inlay or onlay using a CADCAM milling machine such as CEREC 3D.
Your dentist tries your inlay or onlay on to ensure it fits correctly, looks excellent and is in harmony with your bite. Once you are totally happy a permanent adhesive system is used to bond your inlay or onlay to the tooth.
If you're interested in an inlay or an onlay, find The Dental Clinic near you and make an appointment with one of our dentists. Alternatively, read more about the materials used for inlays and onlays , endolays or have a look at our inlays and onlays FAQs .
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