28 5, 16 ± 1, 65 3 11 Second M M. 27 4, 27 ± 1, 11 3 6 Total 55 4, 73 ± 1, 47 3 11 16 Average obturationtime for First maxillary molars is: 5.16 ± 1.65 minutes, for Second maxillary molars is: 4.27 ± 1.11min.