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|Title:||Effect of Soft Lining Material Properties on Maximum Pressure Transmission and Shore a Hardness|
|Abstract:||This study aimed to evaluate the difference of maximum pressure transmission (MPT) beneath denture bases relined with different 4 soft lining materials (GC Soft-liner (GC), Visco-gel (VG), Sofreliner tough M (ST), and Ufi gel P (UP)), in 3 thicknesses (1, 2, and 3 mm) which stored for 1, 7, and 30 days. MPT of each group (n=10) was observed with pressure-sensitive sheets under impact drop test. Shore A hardness of each material (n=6) was evaluated. MPT and Shore A hardness were analyzed by three-way ANOVA and two-way repeated-measures ANOVA followed by Tukey test (α=.05). The results showed that 1-mm thickness VG presented the highest MPT at all time points, while GC in each thickness presented the lowest MPT at day 1 and 7. The MPT at each thickness and Shore A hardness of ST and UP did not change among all time points (P>.05), but those of GC and VG showed significantly increase after 7-day immersion (P<.05). In conclusion, relining denture with VG should be used in case which has at least 2-mm relining space available and limited to 7-day use. GC, ST, and UP in 1-to 3-mm thickness can dissipate pressure up to 30 days.|
|Appears in Collections:||CMUL: Journal Articles|
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