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.