Elsevier

Dental Abstracts

Volume 62, Issue 3, May–June 2017, Page 138
Dental Abstracts

Hands On
Endocrowns

https://doi.org/10.1016/j.denabs.2016.12.023Get rights and content

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Background

Endodontically treated teeth that have lost a great deal of coronal structure present a clinical challenge for reconstruction. One option that has been suggested is endocrown restoration. Endocrowns are monoblock restorations that assemble the intraradicular post, core, and crown into one component. They are anchored to the internal part of the pulp chamber and on cavity margins, obtaining both macro- and micro-mechanical retention. They require the removal of lesser amounts of sound tissue

Methods

The search covered seven databases: PubMed, Web of Science, Scopus, BBO, SciELO, LILACS, and IBECS. Eight studies were identified, 3 of which were clinical trials and 5 in vitro studies. The number of teeth included ranged from 20 to 48, with a total of 102. Although just 1 study investigated resin composite endocrowns, all of them studied ceramic endocrowns. Variables that were quantified included fracture strength, failure modes, marginal continuity, Weibull analysis, and finite element

Results

The success rates for endocrowns varied from 94% to 100%. The follow-up periods ranged from 6 months to 36 months. Fifty-five posterior teeth were included in the assessment. Failure due to secondary caries occurred in two cases.

The analysis of endocrowns’ fracture strength in posterior and anterior teeth demonstrated significant differences from conventional methods involving intraradicular posts, direct composite resin, and inlay/onlay restorations. Endocrowns performed considerably better

Discussion

The performance of endocrowns in both posterior and anterior teeth appears to be similar to or better than that of conventional treatments. However, the results of in vitro studies must be viewed with caution when applying them to clinical situations, and this assessment included a majority of in vitro findings.

Clinical Significance

Further studies are needed to confirm these findings, but it appears that endocrowns may be a viable alternative for patients who have severely compromised

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Sedrez-Prto JA, de Oliveira da Rosa WL, da Silva AF, et al: Endocrown restorations: A systematic review and meta-analysis. J Dent 52:8-14, 2016

Reprints available from T Pereira-Cenci, Graduate Program in Dentistry, Federal Univ of Pelotas, R Gonçalves Chaves, 457 Rm 508, Pelotas, 96015-560 RS, Brazil; e-mail: [email protected]

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