What are Dental Inlays and Onlays?

Inlays and onlays can be used as a replacement for traditional dental fillings to treat teeth. As opposed to fillings, inlays and onlays are fabricated in a lab and then fitted to the tooth.

Inlays are a type of a laboratory-processed restoration placed in a tooth when the cavity is still within the confines of the tooth, while onlays are placed when some parts or the whole chewing surface of the tooth needs to be replaced.

Since inlays and onlays are laboratory-processed, they are imparted with wear-resistant and stain-resistant properties. Inlays and onlays can also be matched with the tooth’s natural color and can be produced with very intricate details such as grooves and special tinting. They can be made of porcelain or zirconia which look aesthetically pleasing and of metal if the location of the restoration is hidden and if the patient is willing.

Advantages

  • Not likely to discolor over time compared to tooth-colored resin fillings
  • Preserve as much healthy tooth as possible and work as an excellent alternative to a crown when the damaged area is minimal
  • An inlay is custom-made according to the preparation tooth by the dentist in comparison with  a composite filling it shrinks in time, and leaks can occur.
  • Dental inlays are better at sealing teeth to keep out bacteria, therefore they are preferred when the cavity is in between teeth

Disadvantages

  • More costly than amalgam or composite fillings
  • The procedure is carried with two appointments instead of one visit
  • It is also prone to fracture

Types/ Kinds

Dental Inlay

SNUG FIT. A dental inlay is applied to the tooth to preserve the tooth as much as possible.

While there are several types of inlays and onlays, gold is the best option but is usually placed in areas of the mouth that are not visible.

Porcelain, ceramic and resin are the kinds that dentists usually use for the front teeth.

Procedure

Inlays and onlays require time for restoration. Usually, it needs two to three dental office visits to finish the whole treatment.

During the first appointment, discussion, planning, removal of the decay, preparation of the tooth and impression of the prepared cavity are done. A temporary inlay or onlay will be placed to last until the next appointment. Subsequently, the impression of the cavity will be sent to the laboratory to be processed.

For the second appointment, the shade and fit of the permanent inlay and onlay in the cavity are checked. If the patient and the dentist consider it as acceptable and no further adjustment needs to be done, the inlay or onlay is finally cemented into the tooth.

The last appointment is scheduled for one – two days after cementation of the restoration and it is done to assess the restoration according to the patient’s feedback as well as to reinforce good oral hygiene. These dental restorations should receive the same meticulous care as your natural teeth to ensure the longevity of the inlay and onlay inside the mouth and to maintain good oral and general health.

Post Treatment

  • Tooth sensitivity with hot and cold sometimes maybe expected, however, it will lessen as the tooth gets used to the restoration.
  • Practice proper oral hygiene by brushing and flossing
  • Visit to the dentist every 6 months to check if there are fractures or leaks

WRITTEN BY: DR. DIANNE MAMAID | EDITED BY: DR. RICHELLE RAMIREZ

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