The effect of different beverages on the surface roughness and hardness of soft denture lining materials

Corresponding author Assist. Prof. Faik Tuğut Cumhuriyet University Faculty of Dentistry, Department Of Prosthodontics, 58140 Sivas Tel: 0 346 21912 35 E-mail: tugut78@hotmail.com SUMMARY Aim: The effect of different kind of drinks is to investigate on hardness and surface roughness of soft lining material. Materials and methods: Eighty cylindrical soft liner specimens were produced for this study. Half of them were immersed in isobutyl methacrylate (iBMA) for 3 min. Specimens were then divided into four subgroups according to different beverages; water (control group), cola, soda, and orange juice. Surface roughness and hardness evaluation of the specimens were performed after 24 hours and 30 days of immersion. The obtained data were evaluated by analysis of variance followed by Tukey’s test (p=0.05). Results: In all groups, roughness and hardness values showed significant differences after both 24 hours and 30 days (p<0.05). The highest surface roughness and hardness values were detected in soda group of specimens, whereas water group of specimens were exhibited the lowest roughness and hardness values regardless of immersion time and iBMA. Conclusion: Beverage as a habitual nutrition cause physical changes of dental soft liners.