Journal of Korean society of Dental Hygiene (한국치위생학회지)

Korean Society of Dental Hygiene (한국치위생학회)
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Tooth whitening effect of toothpaste containing hydrogen peroxide

과산화수소가 배합된 제제의 치아미백효과에 관한 연구

  • Ahn, Jae-Hyun (LG Household & Health Care) ;
  • Kim, Ji-Hye (LG Household & Health Care) ;
  • Kim, Jong-Hoon (LG Household & Health Care) ;
  • Jang, Jong-Hwa (Department of Dental Hygiene, The Graduate School of Hanseo University) ;
  • Oh, Yoon-Jong (Kyung Hee University, School of Dentistry, Preventive and Social Dentistry) ;
  • Park, Yong-Duk (Kyung Hee University, School of Dentistry, Preventive and Social Dentistry)
  • 안재현 ((주)엘지생활건강기술연구원) ;
  • 김지혜 ((주)엘지생활건강기술연구원) ;
  • 김종훈 ((주)엘지생활건강기술연구원) ;
  • 장종화 (한서대학교 치위생학과) ;
  • 오윤종 (경희대학교치과대학예방/사회치과학교실) ;
  • 박용덕 (경희대학교치과대학예방/사회치과학교실)
  • Received : 2013.12.02
  • Accepted : 2014.02.10
  • Published : 2014.02.28
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Abstract

Objectives : The purpose of this study was to evaluate the tooth whitening effect of 0.74% and 2.80% hydrogen peroxide toothpastes and safety on tooth and gingival tissue. Methods : Toothpastes containing 0.74% and 2.80% hydrogen peroxide were evaluated. In in-vitro test, some additives (sodium metaphosphate, sodium pyrophosphate and titanium dioxide) were added to the toothpastes. Hydroxyapatite specimens (HAPs) were made and stained using modified Stookey's methods. HAPs were treated for 1 hour at shaking incubator and brushed for 1,000 times as 250 gF with each diluted toothpaste. Before and after color was measured by colorimeter. Using double blind method, 99 Korean with natural maxillary anterior teeth were selected and the initial brightness (baseline) was measured by SHADEEYE-EX. Based on this measurement they were crossly distributed into control group (0% hydrogen peroxide), test 1 (0.74% hydrogen peroxide) and test 2 (2.80% hydrogen peroxide). After 2 weeks, people of each group were provided toothpaste and told to use 3 times a day right after every meal for 3 minutes. The brightness of teeth was measured 3 times for every one month. Results : ${\Delta}L$ was statistically significant among three groups in shaking test. ${\Delta}L$ of two test groups was statistically significant compared with control group but not between each test group in brushing test. After using toothpaste for 3 months, test 1 group and test 2 group were 15.89% and 31.23% more whitened compared with control group respectively (p<0.05). Rate of more whitened person of each test group was 24.2% and 40.5% more than control group respectively (p<0.05). There was no difference in the hypersensitivity during 3 months using toothpastes and no side effect on teeth or gums. Conclusions : Toothpastes containing 0.74% and 2.80% hydrogen peroxide showed tooth whitening effect and both were safe enough to use for tooth whitening.

Keywords

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