Purpose : The purpose of this study was to compare the wettability of 4 type of denture relining materials by measuring contact angle with saliva substitute.0DWHULDOV DQG PHWKRGV +HDWFXUHG UHOLQH UHVLQ9HUWH[ 56 6HOIFXUHG UHOLQH UHVLQ3UREDVH &ROG 7RNX\DPD 5HEDVH soft liner(COE Soft) were fabricated as specimens.Before and after storage in saliva substitute for 24 hour, contact angle between specimens and CMC based saliva substitute(Xerova soln) were measured.&RQWDFW DQJOH DFFRUGLQJ WR GHQWXUH UHOLQLQJ PDWHULDOV ZHUH