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Effect of Dental Restorative Materials on Total Antioxidant Capacity and Calcium Concentration of Unstimulated Saliva Publisher



Ramezani GH1 ; Moghadam MM2 ; Saghiri MA3 ; Garciagodoy F4 ; Asatourian A5 ; Aminsobhani M6 ; Scarbecz M4 ; Sheibani N7
Authors
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Authors Affiliations
  1. 1. Department of Pediatric Dentistry, Dental Branch, Islamic Azad University, Tehran, Iran
  2. 2. Angiogenesis and Regenerative Group, Dr. H. Afsar Lajevardi Research Cluster, Shiraz, Iran
  3. 3. Wisconsin institute for Medical Research, Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
  4. 4. Bioscience Research Center, Health Science Center, College of Dentistry, University of Tennessee, Memphis, TN, United States
  5. 5. Angiogenesis and Regenerative Sector, Dr. H. Afsar Lajevardi Research Cluster, Shiraz, Iran
  6. 6. Endodontic Department, School of Dentistry, Tehran University of Medical Sciences, AJA University of Medical Sciences, Tehran, Iran
  7. 7. Departments of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States

Source: Journal of Clinical and Experimental Dentistry Published:2017


Abstract

Background: To evaluate the effect of dental amalgam and composite restorations on total antioxidant capacity (TAC) and calcium (Ca) ion concentration of unstimulated saliva. Material and Methods: Forty-eight children aged 6-10 years selected and divided into three groups of sixteen (8 males, 8 females). In group A and B, samples consisted of two class II dental composite or amalgam restorations, while in group C samples were caries-free (control group). Unstimulated saliva from all samples was collected and TAC was measured by spectrophotometry using an adaptation of 2, 2'-azino-di-(3-ethylbenzthiazoline-6-sulphonate) (ABTS) assay. The Ca ion level was estimated by an auto- analyzer. Data were analyzed with one- and two-way ANOVA test, at a p < .05 level of significance. Results: Composite samples showed significantly higher TAC and lower Ca ion levels compared to amalgam and caries-free samples (p < .05). The TAC values showed only significant difference between groups (p < .05), while the Ca ion results showed significant differences within and between groups (p < .05). Conclusions: Dental composite restorations increased TAC and decreased Ca ion levels more than amalgam restorations in saliva. Gender is an effective factor in changes induced in oral cavity as females showed more emphatic reaction to dental filling materials than males. Statement of Clinical Relevance: Patients who have dental restorations, especially dental composites, should pay more attention to their dental hygiene, because dental restorations can increase oxidative stress and decrease Ca ion level in saliva, which might jeopardize remineralization process of tooth structures after demineralization. © Medicina Oral S. L. C.I.F. B 96689336.