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Comparison between the Effects of Green and Black Tea, and Fluoride on Microhardness and Prevention of Demineralization of Deciduous Teeth Enamel
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M Bozorgi   , M Ghasempour * , Gh Ahmadi , S Khafri |
| 2. Oral Health Research Center, Institute of Health, Babol University of Medical Sciences, Babol, I.R.Iran , ma_ghasempour@yahoo.com |
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Abstract: (5652 Views) |
BACKGROUND AND OBJECTIVE: Dental caries in preschool children impose serious problems on parents and children due to lack of cooperation. Since tea leaves contain fluoride and polyphenol, this study was conducted to compare the effects of green and black tea, and fluoride in preventing demineralization of deciduous teeth enamel.
METHODS: This experimental study was performed on 40 extracted human deciduous incisors. The teeth were divided into 4 groups of 10 and were then placed in distilled water, green tea, black tea and oral sodium fluoride (0.05%) for four minutes in seven consecutive days. Surface microhardness before and after tooth extraction was determined in these four solutions by Micro Vickers Hardness Testing Machine. To cause primary caries, each sample was kept for one week in demineralization solution and the concentrations of the released calcium, phosphorus and fluoride ions were analyzed by spectrophotometric and potentiometric laboratory methods.
FINDINGS: Primary microhardness showed no significant difference between the groups. Secondary microhardness compared to primary microhardness in the two groups of green tea (mean of 317 ± 65.47 to 386 ± 85.42, p = 0.003) and fluoride (mean of 319 ± 71.76 to 446 ± 117.15, p = 0.003) increased significantly. The concentration of calcium and phosphorus ions in the four study groups showed a significant difference after being placed in the demineralization solution (p = 0.001) (p = 0.003). However, this difference was not observed in fluoride concentrations.
CONCLUSION: The results of this study showed that drinking green tea can increase the microhardness and green and black tea increase the resistance to demineralization of the deciduous teeth enamel. |
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| Keywords: Enamel, Microhardness, Green Tea, Black Tea, Demineralization |
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Full-Text [PDF 363 kb]
(2418 Downloads)
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Type of Study: Experimental |
Subject:
Dentistry (pediatrics)
Received: 2017/11/25 | Accepted: 2018/05/29 | Published: 2018/06/18
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