alexa Abstract | Cytotoxic Effect of Astringent Agents on Human Gingival Fibroblasts
ISSN: 2247-2452

Oral Health and Dental Management
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Aims: During fixed prosthesis fabrication, gingival margin retraction is an important step before making an impression. Astringent agents should provide sufficient free gingival margin displacement, and must be free of systemic and local harmful adverse effects. This study aimed to determine the biocompatibility of three different astringent agents on human gingival fibroblast. Materials and Methods: In order to evaluate cytotoxicity of 25% aluminum chloride, 25% aluminum sulphate and 20% ferric sulphate, in 24 well culture plates containing human gingival fibroblasts, RPMI media, antibiotic and 10% fetal bovine serum was added. Cell cultures were incubated in a CO2 incubator. After 1, 5 and 15 minutes, optical absorbance of each plate was determined by MTT assay. Cytotoxicity of each astringent at 1, 5 and 15 minutes were compared by using Student t-test. A p-value<0.05 was considered as significant level. Results: The cytotoxicity of aluminum chloride at all time periods was significantly greater than other two astringents (p<0.05). At 1 minute application, cytotoxicity of ferric sulphate was significantly lower than aluminum sulphate (p=0.01). At 5 minutes, the effect of ferric sulphate and aluminum sulphate was similar and at 15 minutes, aluminum sulphate had significantly lower cytotoxicity compared to ferric sulphate (p=0.043). Conclusions: At all tested time periods, 25% aluminum chloride exhibited greater cytotoxicity than aluminum sulphate and ferric sulphate. Compared to aluminum sulphate, the cytotoxicity of ferric sulphate was lower at 1 minute, similar at 5 minutes, and greater at 15 minutes.

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Author(s): Amir Ali Reza Khaledi, Mitra Farzin, Amir Hassain Fathi, Soheil Pardis


Cytotoxicity, Astringent agents, MTT assay, Fibroblast, Gingival Fibroblasts

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