Inlay – Onlay Restorations

If the natural chewing surface of the tooth is damaged due to caries and/or fracture and this tissue constitutes more than half of the tooth, inlay-onlay restoration may be preferred instead of filling or crown treatment.

During the inlay-onlay restoration technique, porcelain, gold or composite material is adhered to the area to fill the damaged part of the tooth and the gap is filled.

Inlay technique is similar to filling in terms of appearance. If the tissue recording is not too much in the part of the tooth that performs the chewing function, the inlay restoration technique is applied in the teeth where the protruding part of the tooth, called the cusp, remains healthy.

Onlay restoration is preferred for the compensation of tissue loss in the visible part of the tooth in the mouth. This technique is used when at least one protruding part is damaged.

Ceramic Inlay – Onlay Restoration

Ceramic filler is a very durable and aesthetic structure prepared in a laboratory environment. Composite filling is more compatible with the applied tooth and adjacent teeth. This is due to the fact that the filling material is prepared in a place outside the mouth, that is, in the laboratory. For the preparation of the filling, the inner part of the tooth is cleaned and only the tissue remains, the measurement of the cavity is taken and sent to the laboratory. Filling is made according to the measurements with a very sensitive technology in the laboratory environment.

Among the intraoral restoration materials in the world, the most suitable for dental tissue are pressable ceramic fillings. Advanced technology techniques are used in the preparation phase of this porcelain filled filling. While the loss of material is at the minimum level, the ability to adhere to the surface is at the maximum level. Edge leakage is minimal as it is not hardened and pressed in the mouth. In addition, it is the filling material that is most compatible with the gingiva and closest to the hardness of the natural tooth. Especially when there is excessive tissue loss, this application is preferred instead of composite filling or crown prosthesis.

In ancient times, gold filling was used as the most resistant material to chewing force during the inlay-onlay restoration process. However, due to the development of more durable porcelains and the fact that they can be made in the form of special casting, porcelain inlay – onlay materials are preferred. In addition, porcelain is resistant to chewing force and gives an aesthetic appearance by perfectly matching with natural teeth.

Porcelain Fillings (Inlay – Onlay):

From an aesthetic point of view, porcelain Inlay – Onlay restoration technique is the best method. Empress is used in porcelain inlay treatment in our clinic. Empress is a durable and highly aesthetic material that is accepted worldwide.


It can be used for a long time and is durable. It takes a long time to renew.

It has a very aesthetic appearance.

The hardness ratio of the material and the hardness of the tooth enamel are very close to each other.

It is a material that is more resistant to chewing force compared to composite filling in molars. After the cavity is prepared and healthy tissue is obtained, a perfect harmony with the tooth is obtained because the cavity is measured and prepared in the laboratory.


The usage area is limited. for example; If the person’s caries is below the level of the tooth, the filling cannot fully adhere to the tooth.

It is a procedure that cannot be done in a single session.

It is more expensive than composite filling.