To evaluate patient’s subjective preferences to scaling with narrow probe-shaped EMS Perio Slim PS tips
compared to conventional tip based on pain perception using the Visual Analogue Scale (VAS). Ten patients
were treated using a piezoelectric ultrasonic device (EMS) and two different scaler tips representing a
conventional scaler tip and a Perio Slim PS scaler tip in a split-mouth design. Pain was evaluated after 2
minutes scaling using Visual Analogue Scale (VAS). Data obtained was analysed by SPSS version 19.0 using
Wilcoxon test. Pain assessment after treatment confirmed by the Visual Analogue Scale (VAS) showed that
the Perio Slim PS scaler tip (maximum pain score: 4, minimum: 2) caused less pain than the conventional
scaler tip (maximum: 8, minimum: 3) (p-value = 0.007). Using Perio Slim PS scaler tip caused less pain and
discomfort during scaling treatment when compared with conventional scaler tip.