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The effect of different disinfectant solutions on the surface roughness of heat cure acrylic resin in comparison to visible light cure acrylic resin denture base | ||
| Journal of baghdad college of dentistry | ||
| Article 1, Volume 23, Issue 4, 2011, Pages 31-35 | ||
| Author | ||
| Mithaq R. Mohammed | ||
| Abstract | ||
| ABSTRACTBack ground: A new denture should be disinfected before delivery to the patient before and after adjustmentprocedures (1). Also, denture should be disinfected used may have harmful effect on the plastic or metal componentof the denture (2). so the dentist must be able to recommend a denture cleanser that is effective, non deterious todenture material and safe for patient use(3,4,5).The aim of this study was to compare the effect of chlorehexidine andsodium hypochlorite as a disinfectant solutions on the surface roughness of different Denture base material.Materials and methods: Sixty specimens were made from two different denture base materials. Twenty specimen ofhot cured acrylic denture base which divided into two subgroups. And twenty specimen of light cured acrylicdenture base which divided into two subgroups. Then each groups was immersed in 0.2% chlorehexidine and 0.525%sodium hypochlorite for 48 hours at (37c0) before being tested (ADAno.12,1999)(6) .And then each specimen wasmeasured by surface roughness test by using (profilometer device) to show the effect of each solution on thedenture base roughness. In comparison to twenty specimen immersed in distilled water as control group of hot curedacrylic and light cured acrylic.Results: The mean values of roughness change were analyzed and showed the specimens polymerized by waterbath presented a smaller differences in roughness, while the largest difference in roughness were observed inspecimens polymerized by light cure system. T- test for three disinfectant solutions were showed non significantdifference among distilled water and chlorehexidine and sodium hypochlorite for both water bath and light curingmethod. The t- test between water bath and light cure were showed a significant difference in surface roughnesswhen different solution has been used.Conclusion: The result of this study indicated that the roughness of acrylic materials was not affected by immersion inany disinfectant solution this is due to the effect of glitaraldehyde base disinfectants (alkaline, phenol buffered) onsurface morphology of denture base resin (7) and also the disinfectant solution was able to reduce the pathoginicityand colorization of micro organism present on the surface of the material, so the acrylic surface remain smooth andpolished (8).Keywords: Surface roughness, chlorehexidine, sodium hypochlorite, hot cured acrylic, light cured acrylic. (J BaghColl Dentistry 2011;23(4):31-35). | ||
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