... calculating the mean difference from the absolutevalues of the difference between the pairs, standarddeviation of the mean difference, and the 10, 50 and 90percentile of the difference between the ... 2 shows the conc ordance between the pairs of dental personnel (all), the pairs of two dental nurses, the pairs of one dental nurse and one dentist, and the pairs of two dentists in the same ... at the same time, and the year for the start and end of the use of a method should have been the same for the persons who worked there.Interview by an occupational health physician - the within...