What Are Inlay and Onlay Porcelain Fillings?
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- What Are Inlay and Onlay Porcelain Fillings?
Inlays and onlays are porcelain fillings applied to teeth with material loss that cannot be replaced by aesthetic fillings. These fillings are not applied with direct technique in the mouth like aesthetic fillings and must be produced in the laboratory.
While inlay is applied for teeth with material loss in the fissure part of the tooth, onlay is applied to teeth with larger diameter material loss.
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How is Inlay and Onlay Filling Done?
Inlay and onlay fillings can be made with different techniques. The first of these is Crown Restorations, which has been applied for many years and is a traditional technique.
For this application, which is also known as ‘Veneer‘ among the people, it is necessary to reduce the tooth circumferentially. Crown restorations can be made of porcelain, zirconium, glass ceramic or even gold, although it is not preferred anymore.
The other treatment type is Lamina Restorations. Laminates, also known as Leaf Porcelain among the people, are bonded only to the front surface of the tooth with special adhesives. The difference from veneer treatment is that the tooth is less abraded and applied only on the front surfaces.
In some patients, if the teeth are suitable, laminate treatment can be performed without any abrasion on the tooth. Lamina restorations can be produced from porcelain and glass ceramics.

Treatment Summary
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The disadvantages compared to aesthetic fillings are taking measurements from inside the mouth and production in the laboratory. It is also a more expensive procedure than aesthetic fillings.
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What Are The Advantages of Inlay and Onlay Porcelain Fillings?
With inlay and onlay fillings, teeth can be saved without any damage to the teeth in cases where aesthetic fillings are insufficient. When aesthetic fillings are used in teeth with very large material losses, situations such as falling or breaking of the filling can be seen, while this situation can be prevented with porcelain fillings.
- At the same time, since it is not made directly in the mouth but produced in the laboratory, the contact points with the side teeth are better adjusted.
- They have a longer life compared to aesthetic fillings.
- They have superior features in terms of appearance compared to aesthetic fillings.
- They are more resistant to high chewing forces than aesthetic fillings.
In Which Cases Should Inlay and Onlay Porcelain Be Preferred?
Inlays and onlays should be preferred in teeth with caries so large that aesthetic fillings are insufficient. At the same time, inlay and onlay fillings can be preferred in cases where aesthetic fillings are broken or constantly falling due to intense tooth clenching.
They may also be suitable for patients who get food between their teeth after aesthetic filling. They increase patient comfort as the contact of the teeth with each other is better provided.
How is the Aesthetic Appearance of Inlay and Onlay Porcelain Provided?
Since porcelain material is used in inlay and onlay fillings, it is easy to provide an aesthetic appearance.
They even give better results in terms of appearance compared to aesthetic fillings.
As with porcelain veneers, colour selection is made according to the colour of the existing teeth and harmony is ensured.
How Many Sessions Do Inlay and Onlay Porcelain Veneers Take?
Inlay and onlay fillings are a 2-session procedure since they are not made directly in the mouth like aesthetic fillings and are produced in the laboratory. In the first session, the decay is cleaned and the tooth is prepared with special burs and an impression is taken.
In the 2nd session, the porcelain filling produced in the laboratory is adhered to the tooth with special adhesives.

Frequently Asked Questions
You can take a look at the frequently asked questions of our patients and contact us for any other questions you may have.
Inlay and onlay porcelain fillings have a lifespan of up to 10-15 years, similar to porcelain veneers.
While inlays are produced only for caries in the fissure area of the tooth, onlays are used in teeth with a larger loss of material.
Inlay and onlay porcelain fillings are performed under local anaesthesia as in aesthetic fillings and no pain is felt.
Since there is no allergy type such as porcelain allergy, there is no risk.
Inlay and onlay porcelain fillings are not produced from composite like aesthetic fillings. As their names suggest, they are produced from materials such as porcelain and glass ceramics.
No side effects. Inlay and onlay porcelain veneers have no side effects.
As with aesthetic fillings, it is possible to return to your normal eating and drinking habits within a few hours after porcelain filling. You should not break crusted foods with your teeth and give up your habits such as nail biting. In addition, providing proper oral care will prolong the life of your aesthetic fillings.
The most beautiful smile shape is a personalised smile shape. A uniform smile shape cannot be thought and applied. Therefore, the physician should make a good facial and character analysis of the patient whose smile will be designed. Special programmes can also be used for designs that can be made by adhering to the golden ratio. The physician should definitely share the design with the patient and apply it with temporary materials in the mouth. Because it is most important that the patient likes this design. The designs that are specially made for the patient and liked by the patient are the most beautiful smile designs.
You can continue your routine oral care. It will be enough to brush your teeth 2 times a day and clean the interface of your teeth with dental floss. For a healthy mouth, you should not neglect your dentist control every 6 months.
In order to learn inlay and onlay porcelain filling prices in a healthy way, you must first be examined by your physician.
Since inlay and onlay fillings are made of porcelain, they are more resistant to colour change than aesthetic fillings and are long-lasting.
Inlay and onlay fillings are not recommended if the loss of material in the tooth is at a level where porcelain filling cannot be performed. Post and porcelain veneers are recommended instead of porcelain filling in teeth with approximately 70% or more material loss.