Evaluation of Adding Ginger Oil on Sorption and Solubility of Soft Liners Using Different Saliva PH Levels

Hawraa Khalid Aziz


Background: Soft lining denture base materials have a key role in modern prosthodontics, but the major
problem with soft linings is that they show change in the sorption and solubility after being used for a long
period, which lead to dramatically effect on the dimensional stability and on the adhesion of soft lining
acrylic denture base material. The purpose of this study was to investigate the effect of adding plant oil extracts on sorption and
solubility of soft linings as well as the effect of different pH levels of artificial saliva at different times of immersion on sorption and
solubility of soft linings.
Materials and methods: 270 specimens were made from heat cured soft liner materials and divided into three groups (90 specimens
in each group) according to the addition of ginger oil extracts. The first group was the control group made of soft liners
only without adding ginger oil; we added 2% of ginger oil extract to the second group and 5% to the third group. Each group was
divided into subgroups according to the immersion time of different pH artificial saliva levels (neutral, basic and acidic). There were
three different periods of immersion: 1week, 3 weeks and 6 weeks. The sorption and solubility of each specimen were measured
Results: The results showed that there was no significant difference in the sorption and solubility of soft linings when adding plant
oil extracts, but there was a highly significant difference when different pH levels of artificial saliva were used. The result also
showed a highly significant difference when we used different times of immersion.
Conclusion: The findings of the study concluded that there was no effect on the sorption and solubility of the soft liners when
adding plant oil extracts and there was a highly significant difference on the sorption and solubility of soft lining materials when immersed in different pH levels of artificial saliva at different periods.


ginger oil; sorption; solubility; pH of saliva

Full Text:



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DOI: http://dx.doi.org/10.26477/idj.v37i2.42


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