All data were analyzed using Statistica version 7 and SAS version 9.1
The decreases in VAS and RMDQ scores were calculated by subtracting the end value from the Initial value, expressed as a percentage.
To compare frequencies between groups, Student’s t test was used with a significance level of 5%. The decreases in VAS in groups 1 and 2 following each session and the PPI, NWC and PRI indexes before and after the treatment in groups 1, 2 and 3 were investigated using Anova for repeated measurements, and the means for the groups were also compared using Duncan’s test.