Aim: The purpose of this study was to examine changes in relative electromyographic (EMG) activities of temporal and masseter muscles after relining the dentures with soft,hard and conventional heat cured based denture liners.
Materials and Methods: Conventional complete dentures were fabricated for 30 edentulous patients. They were divided into three groups. Group I including patients received denture relined with soft liner. Group II including patients received denture relined with hard liner and Group III including patients received dentures relined with conventional heat cured relining material Electromyography of the masseter and temporalis muscle was recorded during eating carrot as hard food and banana as soft one. The records were measured after one, three and six months. Data was analyzed using Statistical ANOVA test to compare between muscle activities of the three groups Duncan's test was used for pair-wise comparisons to determine the differences between means.
Results: Complete denture relined with soft liner showed significant difference in masseter and temporalis muscles activities as compared with the two other groups.
Conclusion: Complete denture relined with soft liner show better effect on masseter and temporalis muscles activity and patient satisfaction.