generalmente recomendará obturar la cavidad con un empaste “blanco” del color del diente o reforzar el diente con incrustaciones dentales inlay u onlay. Many translated example sentences containing “inlays and onlays” Las incrustaciones inlay y onlay requieren menos reducción dentaria que los empastes. Las incrustaciones dentales onlays y en District Heights, MD y Hyattsville, MD y Un inlay es similar a la de llenado convencional y se utiliza ya sea como.

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The sub-structure is porous and therefore allows infiltration of the glass powder when fired again. Due to the more in-depth curing method, using heat, pressure or strong light, this can imlay a lower polymerisation shrinkage. Metal-ceramic inlays were developed to see if the aesthetic advantages of an all-ceramic inlay restoration could be replicated, whilst improving the strength and stability of the restoration.

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Next, the restoration can be designed, by the software programme, on the virtual casts. This can lead to shrinkage stress and rarely to marginal gaps and failure. Composite inlays and onlays offer great aesthetics, as a combination of different shades and opacities can be used in a layering technique, equalling or surpassing the aesthetically pleasing incrhstaciones restoration.

The milling process uses pre-fabricated blocks of restorative material, e. Although improvements of the composite resins could be achieved in the last years, solid inlays do exclude this problem.

The use of gold as a restorative material for the production of inlays and onlays is fading due to the increase in usage of more aesthetically pleasing tooth coloured materials.

Inlays and onlays

The Journal of Prosthetic Dentistry. Historically inlays and onlays will have been made from gold and this material is still commonly used today. Inlays are usually indicated when there has been repeated breach in the integrity of a direct filling as metal inlays are more superior in strength.

This allows for inlays and onlays to be created and fitted all within one appointment.


It lnlay also be used if there is minimal contour of remaining coronal tooth tissue with little retention. The tooth has not fully erupted and continued active and passive eruption can cause unfavourable margins when the tooth is fully through as the patient is still undergoing skeletal development.

Once the wax pattern is constructed the fabrication of this into the final restoration can begin, a method known as the Lost Wax Technique [27] is used. Further strengthening of the material can be done by applying zirconium oxide. Ceramic offers a more aesthetically pleasing restoration colour than previous gold and amalgam restorations.

Direct restorations, incrustaiones example composite may be beneficial when restorations are small. In this case, inpay is a beneficial character as it helps us to identify the presence of an undercut which then can be removed.

The onlay allows for conservation of tooth structure when the only alternative incrusraciones to totally eliminate cusps and perimeter walls for restoration with a crown. The restoration is firstly removed and then the cavity can be converted by ensuring any undercuts are eliminated from the preparation.

Patients need to be able to cope with dental impressions as these are required for the fabrication of the indirect restoration. The preparation of inlays and onlays mainly follows the same basic concepts of indirect restorations. A study showed that the fracture resistance of all-ceramic inlays was greater than that of these metal-ceramic inlays.

Inllay all cusps and the entire surface of the tooth is covered this is then known as a crown. Another incrustacioones detected an increased survival time of composite resin inlays but it was rated to not necessarily justify their bigger effort and inay. Bonding agents can be applied to dentine before cementation of inlays and onlays.

Inlays require elimination of undercuts, therefore direct restorations may preserve tooth structure whilst also avoiding unwanted laboratory costs. This can protect remaining tooth structure. Wikimedia Commons has media related to Dental inlays. The wax is embedded into an investment material with a sprue former — this forms a passage for molten metal to be poured through into the cylinder.


The model is scanned and the 3D image is uploaded onto the software. When decay or fracture incorporate areas of a tooth that make amalgam or composite restorations inadequate, such as cuspal fracture or remaining tooth structure that undermines perimeter walls of a tooth, an onlay might be indicated. This is the buccal cusp for mandibular teeth and the palatal cusp for maxillary teeth. This page was last edited on 24 Decemberat This is an alternative to a direct restorationmade out of composite, amalgam or glass ionomerthat is built up within the mouth.

In more recent years, inlays and onlays have been made out of ceramic materials.

Inlays and onlays – Wikipedia

The investment material must produce enough expansion to compensate for shrinkage of the metal on solidification and should be slightly porous to allow for dissipation of released gases.

After the tooth has been prepared at the first visit a putty and wash impression should be taken of the prepared tooth to be sent to the laboratory for fabrication of the indirect restoration. The metal can be melted using either gas and compressed air, gas and oxygen or electric arc. There are two ways this can be done, either by blocking the undercuts out with an adhesive restorative material or by removing tooth tissue to create the divergent cavity needed.

For tooth preparation, firstly start with occlusal reduction which depending on the restorative material being used can range from 0. Uses authors parameter Commons category link is on Wikidata.

It is possible for these indirect restorations to be provided in one visit. Int J Comput Dent.