Figure 1 Four digit digital caliper (Digimess 100.174BL, Digimess Precision Instruments Ltda. Sao Paulo – SP)

Figure 2 Measurement of a PCP-15 type probe in the 0.015.0 mm marking parameter, according to the adopted methodology.

Figure 3 WHO periodontal probe perpendicular to the ground under cable diameter analysis (lateral view).

Graph 2 Comparison between the averages found of the different brands of WHO periodontal probes surveyed with the WHO standard. DC: Cable Diameter; DE: ball diameter; DU: Diameter of ball union with active tip; MI: Initial marking of the black stripe; ME: Final marking of the black stripe.

 

DC

DE

DU

MI

MF

Standard

WHO

3,50

±

0,20

0,50

±

0,10

0,46

±

0,08

3,50

±

0,10

5,50

±

0,10

Average General(n=142)

6,00

±

1,77

0,61

±

0,10

0,46

±

0,08

3,54

±

0,18

5,58

±

0,14

Table 1: Averages and Standard Deviations found in all periodontal probes without brand distinction researched (n = 142). DC: Cable Diameter; DE: ball diameter; DU: Diameter of ball union with active tip; MI: Initial marking of the black stripe; ME: Final marking of the black stripe.

Brands

DC

DE

DU

MI

MF

Standard

WHO

3,50

±

0,20

0,50

±

0,10

0,46

±

0,08

3,50

±

0,10

5,50

±

0,10

Golgran

4,24

±

0,08

0,65

±

0,07

0,49

±

0,67

3,55

±

0,14

5,56

±

0,13

Trinity

4,14

±

0,16

0,46

±

0,14

0,34

±

0,04

3,49

±

0,25

5,58

±

0,22

Millennium

7,65

±

0,61

0,62

±

0,06

0,47

±

0,07

3,54

±

0,18

5,59

±

0,13

Table 2: Averages and Standard Deviations found in WHO periodontal probes by trademark, in an intra-brand and inter-brand comparison. DC: Cable Diameter; DE: ball diameter; DU: Diameter of ball union with active tip; MI: Initial marking of the black stripe; ME: Final marking of the black stripe.

 

DC

DI

DU

M1

M2

M3

Average

7,39

0,52

1,01

5,01

9,94

15,00

Detour-

standard

1,13

0,06

0,04

0,18

0,14

0,13

Table 3:Means and standard deviations found in all periodontal probes of type PCP-15 surveyed (n = 70). DC: Cable Diameter; ID: Diameter of the start of millimeter marking; DU: Diameter of end of millimeter marking; M1: 0-5 mm longitudinal millimeter markings, M2: 0-10 mm longitudinal millimeter markings; M3: Millimeter longitudinal markings of 0-15 mm.

 

DC

DI

DF

M1

M2

M3

Golgran

4,27

±

0,10

0,68

±

0,09

0,93

±

0,05

4,63

±

0,21

9,67

±

0,10

14,84

±

0,22

Millennium

7,80

±

0,11

0,5

±

0,45

1,02

±

0,03

5,06

±

0,11

9,97

±

0,07

15,02

±

0,10

Table 4: Means and Standard Deviations found in PCP-15 periodontal probes by trademark, in an intra-brand and inter-brand comparison. DC: Cable Diameter; ID: Diameter of the start of millimeter marking; DU: Diameter of end of millimeter marking; M1: 0-5 mm longitudinal millimeter markings, M2: 0-10 mm longitudinal millimeter markings; M3: Millimeter longitudinal markings of 0-15 mm.