Nahsan, F. P. S., Schmit, V. L., Naufel, F. S., Faria e Silva, A. L. and Chaves, L. P. (2015) “Thirteen-year follow up of a conservative approach for closing diastema in anterior teeth with composite resin ”, Bioscience Journal. Uberlândia, MG, 31(4), pp. 1291–1295. doi: 10.14393/BJ-v31n4a2015-29543.