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KMID : 1157520200160020058
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International Journal of Clinical Preventive Dentistry
2020 Volume.16 No. 2 p.58 ~ p.67
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In Vivo Study on the Tooth Whitening by Use of Hydrated Silica and Sodium Hexametaphosphate Contained Dentifrice
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Cho Min-Jeong
Shin Seung-Chul
Chung Sun-Young
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Abstract
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Objective: This study was performed in clinical experiment in order to prove the tooth whitening effect by use of the abrasives of the dentifrice with Hydrated Silica and Sodium Hexametaphosphate.
Methods: 92 volunteers were participated in this clinical study through dividing 3 groups as control group for using plane dentifrice, experimental 1 group for using Hydrated Silica dentifrice and experimental 2 group for using Hydrated Silica and Sodium Hexametaphosphate contained dentifrice for 2 weeks. Tooth whitening was checked with Vita shade guide and VITA EASY SHADE V. L*, a*, b* value was checked by use of CIE (Commission Internationale de l’Eclairage) Lab system and compared them between 3 groups.
Results: Tooth whitening effect was revealed from a week in experimental group 1 and 2 and the more effect in experimental group 2, measured by Vita Shade guide. It revealed a little color change for experimental group1 from a week later, but much color change for experimental group 2, measured with VITA easy shade V (p<0.05). Moreover, it revealed more satisfaction for tooth whitening effect in subjects of the experimental group 2.
Conclusion: Hydrated Silica and Sodium Hexametaphosphate contained dentifrice would be considered as effective for tooth whitening.
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KEYWORD
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discoloration of tooth, tooth bleaching, tooth shade, tooth whitening
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