%0 Journal Article %T A randomized clinical trial comparing Hall vs conventional technique in placing preformed metal crowns from Sudan %A Fadil Elamin %A Ferranti Wong %A Isra Salah %A Nihal Abdelazeem %A Yousra Mirghani %J Archive of "PLoS ONE". %D 2019 %R 10.1371/journal.pone.0217740 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6546341/