The clinical effects of a hydroxyapatite containing toothpaste for dentine hypersensitivity

민감성 치아에 대한 수산화인회석 함유 치약의 임상적 효과

  • Kim, Su-Hwan (Department of periodontology, School of dentistry, Seoul National University) ;
  • Park, Jun-Beom (Department of periodontology, School of dentistry, Seoul National University) ;
  • Lee, Chul-Woo (Department of periodontology, School of dentistry, Seoul National University) ;
  • Koo, Ki-Tae (Department of periodontology, School of dentistry, Seoul National University) ;
  • Kim, Tae-Il (Department of periodontology, School of dentistry, Seoul National University) ;
  • Seol, Yang-Jo (Department of periodontology, School of dentistry, Seoul National University) ;
  • Lee, Yong-Moo (Department of periodontology, School of dentistry, Seoul National University) ;
  • Ku, Young (Department of periodontology, School of dentistry, Seoul National University) ;
  • Chung, Chong-Pyung (Department of periodontology, School of dentistry, Seoul National University) ;
  • Rhyu, In-Chul (Department of periodontology, School of dentistry, Seoul National University)
  • 김수환 (서울대학교 치의학대학원 치주과학교실) ;
  • 박준범 (서울대학교 치의학대학원 치주과학교실) ;
  • 이철우 (서울대학교 치의학대학원 치주과학교실) ;
  • 구기태 (서울대학교 치의학대학원 치주과학교실) ;
  • 김태일 (서울대학교 치의학대학원 치주과학교실) ;
  • 설양조 (서울대학교 치의학대학원 치주과학교실) ;
  • 이용무 (서울대학교 치의학대학원 치주과학교실) ;
  • 구영 (서울대학교 치의학대학원 치주과학교실) ;
  • 정종평 (서울대학교 치의학대학원 치주과학교실) ;
  • 류인철 (서울대학교 치의학대학원 치주과학교실)
  • Published : 2009.03.31

Abstract

Purpose: The aim of this study was to compare the effectiveness of hydroxyapatite containing toothpaste with positive control toothpastes in reducing dentine hypersensitivity. Materials and methods: This clinical trial was a double-blind, randomized, parallel group comparison of two, namely hydroxyapatite containing toothpaste and strontium chloride containing toothpaste. A total of 55 subjects were included in this study. The subjects were given randomly assigned one of the two toothpastes after received tooth brushing instruction at baseline. Some clinical indices(PI, GI, PD), verbal rating score(VRS) for sensitivity to stimulus, the effect in relieving sensitivity and visual analogue scale(VAS) for sensitivity at baseline, week 2, week 4 and week 8 were assessed. All data were evaluated by intention-to-treat analysis. Results: Overall, PI and GI scores were significantly reduced compare baseline in all groups(p<0.05). In addition, there was significant difference in PI at 4 weeks and in GI at 4, 8 weeks between groups. The proportions of subjects relieved sensitivity were 70.4% in experimental group and 57.1% in control group at 8 weeks respectively. The VRS for sensitivity to three kinds of stimuli and VAS for sensitivity decreased according to time, there was no overall difference between two groups(p>0.05). Conclusion: This study demonstrated that the new hydroxyapatite containing toothpaste was similarly effective in reducing dentine hypersensitivity with pre-existing benchmark toothpaste.

Keywords

References

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