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KMID : 1157520160120030121
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International Journal of Clinical Preventive Dentistry
2016 Volume.12 No. 3 p.121 ~ p.126
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The Closure Effect of the Dental Tubules by Use of Dentifrice with the Desensitization Agent
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Kim Jin-Sil
Lim Jee-Hyun
Park Hyo-Jeong
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Abstract
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Objective: Observation and the comparison for the closing effect on the dentinal tubules between the use of the dentifrice with the strontium chloride (SrCl2) component and potassium nitrate (KNO3), in order to find the better component for desensitization effect.
Methods: Sixty specimens from 15 premolars which had been extracted for orthodontic treatment were prepared by dividing 4 groups with 4 pieces from the Buccal surface and grinded to exposure to dentin, in order to observe the dentinal tubules by use of the electric scanning microscope and for micro hardness test. SrCl2 was applied on the group 1 specimens, KNO3 was applied on the group 2 specimens, fluoride dentifrice was applied at the group 3 specimen and no treatment on the group 4 specimens. Micro-hardness test was done for all specimens and scanning electronic microscope observation for counting the closure rate of the dentinal tubule was done for 32 samples of specimens as 8 per a group for 4 groups.
Results: It revealed more in micro-hardness value in experimental 1 and experimental 2 groups than in positive or negative control group. The closure rate was revealed as the highest in experimental 1 group with SrCl2 and the experimental 2 group with KNO3 next, and it was more in closure rate in 2 experimental groups than in positive control with fluoride dentifrice or no use of dentifrice group.
Conclusion: SrCl2 or KNO3 contained dentifrice was considered as useful for the desensitization of the dental patient with the hypersensitive dentin.
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KEYWORD
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hypersensitive dentin, desensitization, strontium chloride, potassium nitrate, micro-hardness test
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