IRCT201105316664N1.

Study name	Comparative of effect of sodium fluoride varnish and Nd: YAG laser and their combative use on dentine hypersensitivity treatment
Methods	Unclear, probably RCT
Participants	Inclusion criteria: each patient had at least 4 hypersensitive teeth; having dentine hypersensitivity more than 6 months; not using other hypersensitivity methods Exclusion criteria: non‐vital teeth; gingivitis; having calculus; decayed teeth
Interventions	Group 1: control group: did not receive any treatment Group 2: treated with 5% sodium fluoride varnish (a Durashield company product) Group 3: received Nd:YAG laser (1 W, 20 Hz, 120 s) Group 4: Nd:YAG laser (1 W, 20 Hz, 120 s) + 5% sodium fluoride varnish
Outcomes	Unclear
Starting date	Unclear
Contact information	Unclear
Notes	‐