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Year : 2009  |  Volume : 9  |  Issue : 4  |  Page : 205-208

Effect of denture cleansers on surface roughness and softness of autopofymerizing soft denture relining material

Dcpartment of Prosthodontics, I.S.S. Dental College and Hospital, Mysore, Karnataka, India

Correspondence Address:
V Leena Rani
W/O Dr. Saralh, Siri Blossom Villas-1, C.B.I.T Colony, Attapur, Hyderabad-500048
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Source of Support: None, Conflict of Interest: None

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Purpose of Study: To evaluate and compare the effects of two denture cleansers on surface roughness and softness of two autopolymerizing soft denture relining material. Materials and Methods: Sixty specimens of PMMA denture base material were relmed with acrylic (Coe-Soft) and silicone relining material (Ufigel-P). These specimens were immersed in cleansers (Clinsodent httydent) and water for eight hours at room temperature. For the remaining 16 hours they were stored in artificial saliva at 37°C for 60 days. Readings for surface roughness and softness were taken at the end of day 1, 15, 30 and 60 and statisticallv analyzed usmg ?t test and ANOVA. Results: Surface roughness of both the test and control groups of acrylic relining material increased with time. For the same treatment protocol, no significant difference was seen within and between the silicone liner groups. Softness of both test and control groups of acrylic lining material decreased with time. Slight decrease in softness was seen tn ali the silicone liner groups. Acrylic relining material exhibited more changes in surface roughness and softness than silicone relining material at ali time intervals. Conclusion: Withrn the limitations of this in vitro study, specimens immersed in the powder form of cleansers showed more changes in surface roughness and softness than the tablet form. These changes were more with acrylic relining material than silicone relining material.

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