Inlays and onlays
Inlays and onlays are prosthetic pieces that reconstruct the badly damaged or dilapidated part of a decayed tooth. This is a modern filling technique that sometimes makes it possible to avoid a prosthesis that is more mutilating for the tooth.
The inlay or onlay is a piece made to measure and put in place by your dentist to allow the repair of a tooth.
Made by the prosthetist (ceramic or composite) they reconstruct, identically, the color and shape of the damaged part of the tooth.
– “With the inlay or onlay the tooth regains its original appearance, its chewing capacity and its function.”
INLAY OR ONLAY?
We speak of inlay when the cavity to be filled is inside the tooth and onlay when the cavity encompasses one or more walls.
The onlay reconstructs the tip and the top of the tooth, i.e. its visible part. It thus makes it possible to aesthetically repair the tooth by covering the broken part.
The inlay helps to reconstruct the internal part of the tooth, the invisible part. It adapts perfectly to the shape of the tooth in order to obtain a high-quality restoration.
WHEN TO USE INLAYS OR ONLAYS?
Inlays or onlays are used for large volume fillings that do not allow a classic restoration. They are indicated whenever any other conventional restoration proves insufficient, either in terms of mechanical strength or in terms of bearing surface.
– “As soon as the volume of a cavity becomes important, your dentist will judge the interest of an inlay or an onlay.”
First session: the tooth is cleaned and the cavity that will accommodate the inlay or onlay is then prepared. A dental impression is then made and sent to the laboratory with the shade references. The inlay or onlay will be made as a single piece that fits perfectly into the cavity like a piece of a puzzle.
Second session: the inlay or onlay is placed and glued in the tooth cavity.
Unlike conventional fillings, inlays or onlays do not put pressure on the remaining dental walls (no risk of fracture). New techniques allow the development of invisible inlays, resistant and impermeable to bacteria