ABSTRACT
Let us now analyze the average quantification of ATP per clinic. At each clinic samples were made on 6 different surfaces in a total of 42 samples.
Thus, the table above represents the quantification of ATP per clinic. The significance level is 0.26 (>0.05), which is concluded that there are significant differences between different clinical and quantification of ATP. The comparison among the average values obtained in different clinics, types
of surface and the safety limit will be analyzed in the following steps:
The table above represents the average and the average difference in each clinic and type of surface, compared to the limit of 500RLU. It ensures that the handle of light is the surface with the highest level of contamination, due to a higher average difference of 2724.4. Regarding dental clinics, clinic E has the highest average difference with 2598.33 and it also owns the highest values of ATP. In comparison with all clinics, the average value of ATP and the safety limit, with their respective confidence intervals. Some surfaces of different clinics presented values below the safety limit except clinic C and D. All surfaces of these clinics were above the safety threshold levels, as can be seen in Graphic 1.
