Clinical evaluation of two white dentifrices for extrinsic stain removal
10.3760/cma.j.issn.1002-0098.2011.s1.025
- VernacularTitle:应用脱渍牙膏去除牙齿外源性色素八周临床效果观察
- Author:
Yi-Si ZHONG
1
;
Wei YIN
;
Xi-Mu ZHANG
;
Ying-Ying FU
Author Information
1. 四川大学华西口腔医学院
- Keywords:
Toothpaste;
Extrinsic dental stain;
Eental stain index
- From:
Chinese Journal of Stomatology
2011;46(z1):107-110
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the extrinsic stain removal efficacy of two commerciallyavailable dentifrices (LION (R) ZACT(R) ).Methods After informed consent was assigned,148 male smokers,aged 19-60 yeas,were recruited in this study.In this double blind,randomized,parallel study,three groups were balanced according to Lobene stain index ( including area and intensity) at baseline and then randomly assigned into three treatment groups:Toothpaste A containing 2％ alumina or Toothpaste B containing 0.5％ four sodium pyrophosphate,Toothpaste C:control dentifrice.Stain level was assessed by one qualified examiner at baseline,4 weeks and 8 weeks after baseline.Results After 4-week use of the assigned dentifrices,the groups using Toothpaste A and B demonstrated significant stain area reduction of 8.48％ and 7.14％,with stain intensity reduction of 5.29％ and 4.23％ compared with the control group ( P ＜ 0.05 ).After 8-week use of Toothpaste A and B,the two groups demonstrated a significant ( P ＜ 0.01 ) stain area reduction of 15.31％ and 14.83％,with stain intensity reduction of 12.65％ and 13.86％,as compared to the control group.Conclusions The dentifrices containing 2％ alumina or 0.5％ four sodium pyrophosphate are effective for the removal of extrinsic tooth stain after four weeks,and eight weeks of use.
