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J Dent Res Dent Clin Dent Prospects. 2015;9(1): 44-48.
doi: 10.15171/joddd.2015.009
PMID: 25973154
PMCID: PMC4417493
  Abstract View: 984
  PDF Download: 894

Original Research

Cariostatic Effect of Green Tea in Comparison with Common Anticariogenic Agents: An in Vitro Study

Mina Jazaeri 1, Farzane Pakdek 2, Loghman Rezaei-Soufi 3, Hamidreza Abdolsamadi 4, Nasrin Rafieian 1*

1 Assistant Professor, Department of Oral Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
2 Assistant Professor, Department of Oral Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
3 Associate Professor, Department of Operative Dentistry, Member of Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
4 Associate Professor, Department of Oral Medicine, Member of Dental Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
*Corresponding Author: Email: Rafieiann@yahoo.com

Abstract

Background and aims. Anticariogenic effects of different mouthrinses have been shown previously. In this in vitro study the anticariogenic effects of polyphenol extract of green tea with 0.05% fluoride, 0.2% chlorhexidine and fluoride-chlorhexidine were compared. Materials and methods. This in vitro study was performed on 50 maxillary premolars in 5 groups: 1) normal saline; 2) a 10% solution of green tea polyphenol extract; 3) 0.05% fluoride; 4) 0.2% chlorhexidine; and 5) fluoride-chlorhexidine. Each tooth was placed in a tube which contained a cariogenic solution. Every day the teeth were washed (depending on the ex-perimental groups) with 5 mL of mouthrinse solution. The depth of the caries was measured under a polarized light micro-scope. Data were analyzed using SPSS 13.0 with Kolmogorov–Smirnov, one-way ANOVA and Tukey tests. Results. The mean and standard deviation (in m) of caries depth were 194±16.43, 175±17.94, 142±9.34, 155±13.27, and 144±8.57 in groups 1 to 5, respectively, with significant differences between the groups (P<0.001). Tukey test showed that although there was no significant difference in the depth of caries in groups 1 and 2 (P>0.001), they were significantlyless than those in groups 3 to 5 (P<0.001). There was no significant difference between decay depth of groups 3, 4 and 5 (P>0.001). Conclusion. The anticariogenic effect of fluoride-chlorhexidine was the highest among the groups. Although green tea showed higher cariostatic effects than normal saline, in comparison with other mouthrinses, it is less effective. More re-search is strongly recommended for clinical use of green tea as an anticariogenic agent.
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Submitted: 15 Mar 2015
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