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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.7
- 수록면
- 67 - 75 (9page)
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초록· 키워드
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The purpose of this study was to compare of the effectiveness of tooth bleaching with different hydrogen peroxide concentrations and light activated plasma arc on extracted premolar tooth The 100 specimens were stained using the CEYLON black tea.
Among of them 60 specimens were selected by lightness values (*L) and were classified into five groups (n=12): Group Ⅰ, Distilled water; Group Ⅱ, 5% hydrogen peroxide gel ; GroupⅢ, 5% hydrogen peroxide+plasma arc; Group Ⅳ, 15% hydrogen peroxide; GroupⅤ, 15% hydrogen peroxide +plasma arc. Specimens were bleached until 4 times (60 min). The color change (ΔE*) of specimens was measured after stained and each bleaching time by Shade Eye-NCC. The samples were analyzed qualitatively by evaluating morphological changes in the SEM images, microhardness and quantitatively by using roughness parameters (Ra). The acquired data was analyzed by paired t-test and one-way ANOVA followed by Tukey's multiple test for variable at a 0.05 significant level.
The color changes (ΔE*) significantly increased after bleaching in all groups (p<0.05). Microhardness (VHN) significant decreased after bleaching in all groups AFM and SME images exhibited that the surfaces of specimens became roughed after bleaching. Especially, Group of hydrogen peroxide with plasma arc showed more rougher than hydrogen peroxide without plasma arc in SEM. This study suggested that hydrogen peroxide with plasma arc may be better tooth whitening effects than only hydrogen peroxide.
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참고문헌 (25)
참고문헌 신청
Li Y / 1998 / Tooth bleaching using peroxide containing agents:current status of safety issues / Compend Contain Educ Dent 19(8):76~786
Haywood VB / 1992 / History, safety, and effectiveness of current bleaching technique and applications of the nightguard vital bleaching technique / Quintessence Int 23(7):471~488
Shannon H / 1993 / Characterization of enamel exposed to 10% Cabamide peroxide bleaching agent / Quintnessence Int 24(1):39~44
Haywood VB / 1992 / Bleaching of vital and nonvital teeth / Curr Opin Dent 2:142~149
Reyto R / 1998 / Laser tooth whitening / Deny Clin North Am 42:755~762
Haywood VB / 1992 / History, safety, and effectiveness of current bleaching technique and applications of the nightguard vital bleaching technique / Quintessence Int 23(7):471~488
Shannon H / 1993 / Characterization of enamel exposed to 10% Cabamide peroxide bleaching agent / Quintnessence Int 24(1):39~44
Haywood VB / 1992 / Bleaching of vital and nonvital teeth / Curr Opin Dent 2:142~149
Reyto R / 1998 / Laser tooth whitening / Deny Clin North Am 42:755~762
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