International Journal of Oral Biology

  • 제39권4호
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  • Pages.187-192
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  • 2014
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  • 1226-7155(pISSN)
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  • 2287-6618(eISSN)
대한구강생물학회 (The Korean Academy of Oral Biology)
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Alteration of Hydroxyapatite Surface after Tooth Bleaching with Nonthermal Atmospheric Pressure Plasma

  • Nam, Seoul Hee (Department of Oral Anatomy, School of Dentistry, Pusan National University) ;
  • Lee, Hae June (Department of Electrical Engineering, Pusan National University) ;
  • Hong, Jin Woo (Department of Internal Medicine, School of Korean Medicine, Pusan National University) ;
  • Kim, Gyoo Cheon (Department of Oral Anatomy, School of Dentistry, Pusan National University)
  • 투고 : 2014.10.13
  • 심사 : 2014.11.27
  • 발행 : 2014.12.31
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초록

Nonthermal atmospheric pressure plasma has attracted great interest for biomedical applications. The plasma consists of charged particles, radicals, and a strong electric field as the fourth state of matter. This study evaluated the change in the surface roughness after tooth bleaching by plasma in combination with a low concentration (15%) of carbamide peroxide, specifically whether the application of plasma produced detriments, such as demineralization and structural change, with the goal of efficient and safe tooth bleaching. After being combined with plasma and 15% carbamide peroxide, the hydroxyapatite surface was significantly smoother with a low roughness average value. Tooth bleaching with 15% carbamide peroxide alone produced an irregular surface and increased the surface roughness with high roughness average value. Tooth bleaching with plasma resulted in no significant variations in hydroxyapatite in terms of change in surface roughness and surface topography. The application of tooth bleaching with plasma is not deleterious to dental hard tissue, implicating it as a safe tooth bleaching technique.

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참고문헌

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