지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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The purpose of this study was to evaluate the tooth whitening efficacy of 2.9% hydrogen peroxide strip with primer gel of alkaline condition andcontaining metallic salts as catalyst in-vitro. Hydroxyapatite (HAP) disk was made by compressing and sintering 0.3 g of mixture of HAP powderand polyvinyl alcohol. This HAP disk was stained using modified Stookeyʼs methods. Main bleaching materials were 2.9% hydrogen peroxide stripsand the primer gel containing metallic salts as catalyst and pH controller. Stained HAP disks were allocated to each control or experimental groupsby color grade. Stained HAP disks were treated for 30 minutes in 37oC/80% incubator for wetting, then each primer gel according to control oreach test group was spread and strips were attached. After 30 minutes for each group strips were detached and HAP disks were washed, driedthen color was measured by colorimeter. Efficacy was evaluated by comparing ΔL values of HAP disks at baseline and after treated. Among somekinds of metallic salts for as catalyst, ferric chloride showed best improvement of efficacy and it was statistically significant (p＜0.05) compared tocontrol group. Evaluating whitening efficacy according to various pH of primer, efficacy using primer of alkaline condition was increased significantly(p＜0.05) compared to control and primers of acidic or neutral conditions. Evaluating whitening efficacy for time course, efficacy of test group for30 minutes was similar to that of control for 120 minutes. It can be concluded that 2.9% hydrogen peroxide strips using with primer of alkalinecondition and containing ferric chloride showed significantly increased whitening efficacy compared to the case of strips only.
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참고문헌 (19)
참고문헌 신청
Addy M / 1985 / Extrinsic tooth discoloration by metals and chlorhexidine: II. clinical staining produced by chlorhexidine, iron and tea / Br Dent J 159 : 331 ~ 334
Blankenau R / 1999 / The current status of vital tooth whitening techniques / Compend Contin Educ Dent 20 : 781 ~ 784
Goldstein RE / 1997 / In-office bleaching: where we came from, where we are today / J Am Dent Assoc 128 : 11 ~ 15
Haywood VB / 1991 / Nightguard vital bleaching: a story and products update, part 1 / Esthet Dent Update 2 : 63 ~ 66
Heymann HO / 2005 / Tooth whitening: facts and fallacies / Br Dent J 198 : 514 ~
Blankenau R / 1999 / The current status of vital tooth whitening techniques / Compend Contin Educ Dent 20 : 781 ~ 784
Goldstein RE / 1997 / In-office bleaching: where we came from, where we are today / J Am Dent Assoc 128 : 11 ~ 15
Haywood VB / 1991 / Nightguard vital bleaching: a story and products update, part 1 / Esthet Dent Update 2 : 63 ~ 66
Heymann HO / 2005 / Tooth whitening: facts and fallacies / Br Dent J 198 : 514 ~
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