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Posterior Restoration: Laboratory Fabricated Inlays/Onlays

Learning Objectives:

After hearing this podcast, the listener should:

  1. Know how laboratory fabricated inlays/onlays can improve aesthetics and achieve predictable results.
  2. Know the process by which to apply inlays/onlays.

Edward Lowe, BSc, DMD*

Nelson A. Rego, CDT 

The variety of materials that can be used for the restoration or replacement of the posterior dentition have increased dramatically. Implant therapy, porcelain-fused-to-metal crowns and fixed partial dentures, all-ceramic systems, and direct composite resin all present the restorative team with numerous possibilities when considering the treatment of this region. Due to advances in contemporary resin cements and adhesive formulations, however, indirect porcelain and composite resin inlay and onlay restorations may also be utilized. Laboratory-fabricated composite resin restorations can provide predictable aesthetic results when precise clinical and laboratory techniques are strictly followed and communication protocols have been established among the members of the restorative team. In comparison to metal-ceramic alternatives, the preparation for these restorations is conservative in nature - in essence, only damaged tissue is removed. In addition, they have demonstrated minimal wear of the opposing dentition in preliminary studies, which has traditionally been a limitation of porcelain inlays and onlays. This reduced antagonist wear has been attributed to the revised composition of the laboratory-fabricated composite material, which is a combination of ceramic fillers and an organic matrix. Laboratory-fabricated composite resin can also be adjusted chairside with relative ease. 

*Private practice, Vancouver, British Columbia, Canada.

Related Reading:

  1. http://thenextdds.com/Case-Studies/Preparation-Design-and-Considerations-for-Direct-Posterior-Composite-Inlay/Onlay-Restoration/
  2. http://thenextdds.com/Case-Studies/Posterior-Restoration-Using-Laboratory-Fabricated-Composite-Resin-Inlays/Onlays/
  3. http://thenextdds.com/Videos/Direct-Posterior-Composite-Inlay/Onlay-Restorations/
  4. http://thenextdds.com/Articles/Intracoronal-Restorations%E2%80%94Part-I/
  5. http://thenextdds.com/Articles/Intracoronal-restorations--Part-II/
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