Evaluation of shrinkage and polymerization shrinkage stress in resin composites reinforced by nanofibers – integrative literature review

• DOI: 10.22533/at.ed.1593312324048

• Palavras-chave: Polymerization shrinkage. Nanofibers. Composite resins.

• Keywords: Polymerization shrinkage. Nanofibers. Composite resins.

• Abstract:

  Even though it is considered a key factor in the clinical failure of the restoration, the shrinkage and polymerization shrinkage stress associated with resin composites reinforced by nanofibers have been little explored. Thus, the present study aimed to carry out an integrative literature review to evaluate the shrinkage and polymerization stress in resin composites reinforced by experimental nanofibers and available in the dental market, allowing support for decision-making in clinical practice. The MEDLINE-PubMed, Embase, Web of Science, Scopus, VHL (LILACS, BBO and IBECS), Cochrane, LIVIVO databases were used, without limitations regarding language and year of publication. The inclusion criteria used for the selection of articles were: in vitro studies, with no language restriction, published in the selected databases, with texts available in full and on the subject in studies. It was possible to analyze through this integrative literature review that more studies are needed to evaluate the polymerization shrinkage of resin composites reinforced by nanofibers and the effect of shrinkage stress. In general, the properties change according to the orientation of the fibers, and the short fibers seem to promote a lower rate of polymerization shrinkage.