Effects of Short and Long-Term Immersion in Denture Cleansers on the Dimensional Stability of Acrylic Denture Base Material

Volume 7 , Issue 1 , June 2020 , Pages 49-57

Authors

Sanarya A. Younus 1 ; Neda M. AL-Kaisy 2

1 Prosthodontic Department, M.Sc Student, College of Dentistry, Sulaimani University, Sulaimani, Iraq.

2 Prosthodontic Department, College of Dentistry, Sulaimani University, Sulaimani, Iraq.

DOI logo 10.17656/sdj.10106

Keywords

Abstract

Objective: This study aimed to compare the effects of three commercially available denture cleansing solutions on the dimensional
stability of heat cure acrylic denture bases.
Methods: Twenty four maxillary acrylic denture base samples were constructed and divided into four groups. Group 1. water as
control, group 2. 1% Sodium hypochlorite, group 3. 2% Chlorhexidine, and Group 4. Kin tablet solution. Linear dimensional
measurements were conducted along with five-time intervals: 0 times: before immersion, three days, ten days, one month, and two
months after immersion. After each time interval, the specimens were photographed in a standardized manner, and the images were
evaluated by Image J software. The dimensions between six projection points on the intaglio surface of denture bases were recorded
and compared. Data were submitted to statistical analysis (Two-way ANOVA, Tukey test, p  0.05).
Results: All specimens in three disinfectant solutions and water exhibited a small amount of linear expansion at all time intervals. The
expansion was significant compared to the 0-time immersion. On the tenth day of immersion, the dimensional change becomes stable
and constant until the end of the two months. Among the three disinfectants, 1% of Sodium hypochlorite registered the least expansion
in some measured lines at two-time intervals followed by 2% Chlorhexidine.
Conclusions: Cleanser solutions induced dimensional changes on acrylic denture bases similar to the effect of water in all examined
measurements. The long time cleanser's immersion had the same effect on the dimension as the short time effect. 

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  • Published at1 June 2020

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