| Autor: |
Reis AF; Universidade de Guarulhos - UNG, Dental Research and Graduate Studies Division, Department of Restorative Dentistry, Guarulhos, SP, Brazil., Vestphal M; Universidade de Guarulhos - UNG, Dental Research and Graduate Studies Division, Department of Restorative Dentistry, Guarulhos, SP, Brazil., Amaral RCD; Universidade do Oeste de Santa Catarina - Unoesc, Joacaba, SC, Brazil., Rodrigues JA; Universidade de Guarulhos - UNG, Dental Research and Graduate Studies Division, Department of Restorative Dentistry, Guarulhos, SP, Brazil., Roulet JF; University of Florida, College of Dentistry, Department of Restorative Dental Sciences, Gainesville, FL, United States of America., Roscoe MG; Universidade de Guarulhos - UNG, Dental Research and Graduate Studies Division, Department of Restorative Dentistry, Guarulhos, SP, Brazil. |
| Abstrakt: |
This systematic review assessed the literature to evaluate the efficiency of polymerization of bulk-fill composite resins at 4 mm restoration depth. PubMed, Cochrane, Scopus and Web of Science databases were searched with no restrictions on year, publication status, or article's language. Selection criteria included studies that evaluated bulk-fill composite resin when inserted in a minimum thickness of 4 mm, followed by curing according to the manufacturers' instructions; presented sound statistical data; and comparison with a control group and/or a reference measurement of quality of polymerization. The evidence level was evaluated by qualitative scoring system and classified as high-, moderate- and low- evidence level. A total of 534 articles were retrieved in the initial search. After the review process, only 10 full-text articles met the inclusion criteria. Most articles included (80%) were classified as high evidence level. Among several techniques, microhardness was the most frequently method performed by the studies included in this systematic review. Irrespective to the "in vitro" method performed, bulk fill RBCs were partially likely to fulfill the important requirement regarding properly curing in 4 mm of cavity depth measured by depth of cure and / or degree of conversion. In general, low viscosities BFCs performed better regarding polymerization efficiency compared to the high viscosities BFCs. |
