Abstract
Deep margin elevation (DME) is a nonsurgical, alternative technique of dental crown lengthening. Portion of direct restoration placed only at the deep apical part of the cavity to elevate the margin to a more coronal and more adequate position for final cementation of indirect restoration.Materials and methods. In this systematic review, we were looking for in vitro studies in which deep margin elevation (DME) technique were used. The electronic databases PubMed and EMBASE were used for the search. The search began on July 29, 2021 and ended on August 10, 2021. We have analyzed the materials and methods of each research and entered them in the appropriate tables to give a clearer assessment of the obtained results.Results. Analysis of marginal quality showed the best results when indirect restorations luted to dentin directly and with DME technique with three consecutive layers of resin composite. In groups without DME there were fewer microleakage. DME did not statistically significantly influence the fracture strength.Conclusions. We conducted a systematic review that included 12 in vitro studies. Even though samples without DME showed better results in in vitro studies, the difference between samples with and without DME was not statistically significant. However, in clinical practice, DME facilitates the insertion of indirect restorations. Therefore, further studies and clinical observations are necessary.
Highlights
Deep proximal carious cavities are very difficult in daily clinical practice
The primary goal of this systematic review was to evaluate the effect of deep margin elevation on the marginal
Results obtained in the groups with deep margin elevation (DME) using cement and one layer of resin composite were significantly worse
Summary
Deep proximal carious cavities are very difficult in daily clinical practice. Restorative dentistry attaches great importance to aesthetic restorations in combination with a long-term perspective of tooth service. There is an alternative solution that helps in avoiding surgical intervention and in producing tooth restoration in a single visit, the idea is based on the relocation of the subgingival proximal margin to a supragingival level [6,7,8] which occurs due to the use of a composite filling material. This technique was introduced by Dietschi and Spreafico [11] over 25 years ago and nowadays is called deep margin elevation (DME) [8]. To place the direct resin composite in the deep cavity floor, a metal interproximal matrix is used [13]
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