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
Scaler tip
VAS score
Mean (SD)
Median (IQR)
p value
PS
3.5 (1.5)
3 (1)
0.003*
Conventional
4.9 (1.8)
5 (2)