Eficacia de restauraciones indirectas con elevación de margen Vs. alargamiento de corona. Revisión sistemática.

Abstract

Objective: Analyze the efficacy of indirect restorations with deep margin elevation versus crown lengthening. Materials and methods: Systematic review of articles without publication date restriction, using metasearch engines PubMed, Google Scholar, Cochrane Library y Scopus. Of the 130 articles found, a sample of 45 articles was selected, from which properties such as longevity, marginal sealing, periodontal health and the technique most used in recent years between margin elevation and Crown lengthening were analyzed. Results: Regarding the technique that presents the best performance tissues, 55% of the analyzed articles chose the margin replacement technique. In the same way, this technique surpassed with 88.2% the crown lengthening in the marginal sealing. When analyzing the longevity of the restorations, the results between both techniques are closer. In addition, it was shown that the most widely used technique is the deep margin elevation. Conclusion: Among the two techniques, the one that presents the greatest advantages is the deep margin elevation technique, however, to perform it the operator´s skills must be taken into consideration, correct absolute isolation and that it does not cause invasion of the biological space. If these requirements do not meet, a crown lengthening must be used.