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Table 1 Overview according to treatment time per tooth and RCE (relative cleaning efficacy) with pairwise instrument comparisons

From: Results of an experimental study of subgingival cleaning effectiveness in the furcation area

Instrument

Overall RCE in % (mean ± SD)

RCE for furcation roof in % (mean ± SD)

RCE for all vertical root surfaces in % (mean ± SD)

TrT in s per tooth

Pairwise instrument comparison

p-value for RCE—overall

p-value for RCE—furcation roof surfaces

p-value for RCE—vertical root surfaces

p-value for TrT

LAPA-1 with supragingival nozzle

27.05 ± 28.40

24.44 ± 29.69

28.15 ± 29.00

129.67 ± 60.92

Versus LAPA-1 with subgingival nozzle

p < 0.001

p < 0.001

p < 0.001

p < 0.001

     

Versus US

p < 0.001

p = 0.001

p < 0.001

p < 0.001

     

Versus AIR

p < 0.001

p < 0.001

p < 0.001

p < 0.001

LAPA-2 with supragingival nozzle

20.13 ± 22.14

17.15 ± 23.00

21.24 ± 22.73

145.57 ± 76.42

Versus LAPA-1 with supragingival nozzle

p > 0.05

p > 0.05

p > 0.05

p > 0.05

     

Versus LAPA-1 with subgingival nozzle

p < 0.001

p < 0.001

p < 0.001

p = 0.006

     

Versus US

p < 0.001

p < 0.001

p < 0.001

p < 0.001

     

Versus AIR

p < 0.001

p < 0.001

p < 0.001

p < 0.001

LAPA-1 with subgingival nozzle

41.07 ± 28.95

41.48 ± 30.67

41.34 ± 29.93

213.52 ± 70.95

Versus US

p > 0.05

p > 0.05

p > 0.05

p = 0.034

     

Versus AIR

p > 0.05

p > 0.05

p > 0.05

p > 0.05

LAPA-2 with subgingival nozzle

14.06 ± 14.29

12.04 ± 17.81

14.99 ± 14.33

261.67 ± 100.02

Versus LAPA-2 with supragingival nozzle

p > 0.05

p > 0.05

p > 0.05

p < 0.001

     

Versus LAPA-1 with supragingival nozzle

p > 0.05

p > 0.05

p = 0.004

p < 0.001

     

Versus LAPA-1 with subgingival nozzle

p = 0.002

p < 0.001

p < 0.001

p > 0.05

     

Versus US

p < 0.001

p < 0.001

p < 0.001

p > 0.05

     

Versus AIR

p < 0.001

p < 0.001

p < 0.001

p > 0.05

US

39.63 ± 22.02

32.54 ± 24.87

41.95 ± 23.53

299.40 ± 120.69

Versus AIR

p > 0.05

p > 0.05

p > 0.05

p > 0.05

AIR

46.04 ± 25.96

41.42 ± 28.20

47.78 ± 26.94

274.67 ± 95.80

     
  1. Treatment time per tooth (TrT) in seconds and RCE (relative cleaning efficacy) were assessed overall (all surfaces of the furcation area), specifically on the furcation roof and solely on the vertical root surfaces
  2. Average values and p-values of RCE were calculated over an N of 252 for test teeth and an N of 924 for different surfaces. All significant p-values are highlighted with bold font
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BMC Oral Health

ISSN: 1472-6831

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