Evaluation of the Strain under Compression and Surface Roughness of Tissue Conditioners Incorporated with Silver Nano Particles and Chlorhexidine: An In Vitro Study
Pooja M Raikar, Sapna Chengappa Kambiranda, Nitesh Shetty
Citation Information :
Raikar PM, Kambiranda SC, Shetty N. Evaluation of the Strain under Compression and Surface Roughness of Tissue Conditioners Incorporated with Silver Nano Particles and Chlorhexidine: An In Vitro Study. Int J Prosthodont Restor Dent 2023; 13 (4):228-234.
Purpose: To evaluate and compare the strain under compression and surface roughness of tissue conditioner after incorporation of silver nanoparticles and chlorhexidine.
Materials and methods: A total of 321 specimens were prepared following American Dental Association (ADA) specification no. 19 (n = 21 disk-shaped specimens; n = 300 cylindrical specimens). The specimens were divided into three groups: group I as control (tissue conditioner without any additives), group II (tissue conditioner with 0.1% silver nanoparticles), and group III (tissue conditioner with 2% chlorhexidine). Cylindrical specimens (n = 100 per group) were used for strain under compression, and disk-shaped specimens (n = 7 per group) for surface roughness. Statistical analysis was done using Kruskal–Wallis tests along with Dunn's post hoc test.
Results: The mean strain percent of the silver nanoparticles incorporated group was 0.45, the control group was 0.35, and the chlorhexidine-incorporated group was 0.46. The strain was less in the control group compared to the other two groups, and the difference was statistically significant (p = 0.016). The mean strain percent of all three groups increased linearly as the load increased. The difference in the distribution of strain percent of the three-tissue conditioner group with an increase in load was significant in each group (p < 0.001). The mean surface roughness of the silver nanoparticles incorporated group was 4.12 μm, followed by the chlorhexidine incorporated group (4.47 μm) and control group (4.58 μm). There was no significant difference in the surface roughness between the three tissue conditioner groups (p = 0953).
Conclusion: The incorporation of 0.1% silver nanoparticles into tissue conditioner showed decreased strain under compression and less surface roughness when compared with the control group. The incorporation of 2% chlorhexidine into tissue conditioner showed increased strain under compression and decreased surface roughness when compared with the control group. In patients with denture stomatitis, tissue conditioner comprising 0.1% silver nanoparticles can be used as a beneficial and promising antimicrobial agent without altering the mechanical and physical properties.
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