Abstract
Purpose: To evaluate fluid absorbancy of retraction cords of different thickness after various medicament immersions. Materials and Methods: Ultrapak retraction cords of three different thicknesses (No. 000, 00, 0) with identical lengths (25 mm) were used. They were immersed in two different medicaments (25% aluminum chloride and saturated alum) for 20 min. Two different immersion fluids (artificial saliva and human plasma) were compared for fluid absorbancy. The capability of the cords to absorb fluids was measured by a gravimetric method. The data were analyzed by F test analysis and P<.05 was regarded as significant. Results: Regardless of the medicament used and immersion fluid, a relationship existed between cord thickness and the amount of fluid absorbed. There was a significant difference in the fluid absorbancy of all the three groups (P<0.01). A significant difference was also observed in the fluid absorbancy of saliva and plasma (P<0.05). Conclusion: The results of this study indicated that fluid absorbancy increased in linear proportion to the increase in thickness of the retraction cord. Ultrapak (#0) when treated with alum showed most favorable results. All the cords absorbed artificial saliva more than plasma irrespective of cord thickness and medicament used.
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