Skip to main content

Table 1 Mean (SD) surface roughness in Sa values before and after scaling with PS or conventional scaler tips

From: Influence of scaler tip design on root surface roughness, tooth substance loss and patients’ pain perception: an in vitro and a randomised clinical trial

Surface roughness

Mean (SD) µm

Mean difference (SD)

p value

p value

Before

After

PS (n = 10)

9.8 (4.7)

6.7 (3.3)

3.1 (2.5)

0.005*

0.167

C (n = 10)

10.0 (3.2)

5.3 (3.5)

4.7 (3.3)

0.005*

 
  1. Intragroup comparison was analysed using Wilcoxon signed-rank test. Intergroup comparison was analysed with independent t test
  2. C conventional tip, PS Perio Slim tip, SD standard deviation
  3. *Statistically significant difference (p < 0.05)
Back to article page

BMC Oral Health

ISSN: 1472-6831

Contact us