Triclosan/copolymer containing toothpastes for oral health
Dec 7, 2013The Cochrane database of systematic reviews
Toothpastes with Triclosan and Copolymers for Improving Oral Health
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Abstract
Analysis of 30 studies involving 14,835 participants indicated that triclosan/copolymer toothpastes reduced plaque and gingival inflammation compared to fluoride-only toothpastes.
- Triclosan/copolymer toothpaste reduced plaque by 0.47 on a 0 to 5 scale after six to seven months, representing a 22% reduction in the control group.
- Inflammation from gingivitis was reduced by 0.27 on a 0 to 3 scale after six to nine months, equating to a 22% reduction in the control group.
- The proportion of bleeding sites decreased by 0.13 after six to seven months, showing a 48% reduction in bleeding in the control group.
- Triclosan/copolymer toothpaste slightly reduced coronal caries by 0.16 after 24 to 36 months, with a 5% reduction in the control group.
- Evidence regarding the prevention of periodontitis was insufficient, with no difference noted between the toothpaste types after 36 months.
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BACKGROUND: Periodontal disease and dental caries are highly prevalent oral diseases that can lead to pain and discomfort, oral hygiene and aesthetic problems, and eventually tooth loss, all of which can be costly to treat and are a burden to healthcare systems. Triclosan is an antibacterial agent with low toxicity, which, along with a copolymer for aiding retention, can be added to toothpastes to reduce plaque and gingivitis (inflammation of the gums). It is important that these additional ingredients do not interfere with the anticaries effect of the fluoride present in toothpastes, and that they are safe.
OBJECTIVES: To assess the effects of triclosan/copolymer containing fluoride toothpastes, compared with fluoride toothpastes, for the long-term control of caries, plaque and gingivitis in children and adults.
SEARCH METHODS: We searched the Cochrane Oral Health Group's Trials Register (to 19 August 2013), the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2013, Issue 7), MEDLINE via OVID (1946 to 19 August 2013), EMBASE via OVID (1980 to 19 August 2013), and the US National Institutes of Health Trials Register (clinicaltrials.gov) (to 19 August 2013). We applied no restrictions regarding language or date of publication in the searches of the electronic databases.
SELECTION CRITERIA: We included randomised controlled trials (RCTs) assessing the effects triclosan/copolymer containing toothpastes on oral health.
DATA COLLECTION AND ANALYSIS: Two review authors independently assessed the search results against the inclusion criteria for this review, extracted data and carried out risk of bias assessments. We attempted to contact study authors for missing information or clarification when feasible. We combined sufficiently similar studies in meta-analyses using random-effects models when there were at least four studies (fixed-effect models when fewer than four studies), reporting mean differences (MD) for continuous data and risk ratios (RR) for dichotomous data.
MAIN RESULTS: We included 30 studies, analysing 14,835 participants, in this review. We assessed 10 studies (33%) as at low risk of bias, nine (30%) as at high risk of bias and 11 (37%) as unclear. Plaque Compared with control, after six to seven months of use, triclosan/copolymer toothpaste reduced plaque by 0.47 on a 0 to 5 scale (MD -0.47, 95% confidence interval (CI) -0.60 to -0.34, 20 studies, 2675 participants, moderate-quality evidence). The control group mean was 2.17, representing a 22% reduction in plaque. After six to seven months of use, it also reduced the proportion of sites scoring 3 to 5 on a 0 to 5 scale by 0.15 (MD -0.15, 95% CI -0.20 to -0.10, 13 studies, 1850 participants, moderate-quality evidence). The control group mean was 0.37, representing a 41% reduction in plaque severity. Gingivitis After six to nine months of use, triclosan/copolymer toothpaste reduced inflammation by 0.27 on a 0 to 3 scale (MD -0.27, 95% CI -0.33 to -0.21, 20 studies, 2743 participants, moderate-quality evidence). The control group mean was 1.22, representing a 22% reduction in inflammation. After six to seven months of use, it reduced the proportion of bleeding sites (i.e. scoring 2 or 3 on the 0 to 3 scale) by 0.13 (MD -0.13, 95% CI -0.17 to -0.08, 15 studies, 1998 participants, moderate-quality evidence). The control group mean was 0.27, representing a 48% reduction in bleeding. Periodontitis After 36 months of use, there was no evidence of a difference between triclosan/copolymer toothpaste and control in the development of periodontitis (attachment loss) (RR 0.92, 95% CI 0.67 to 1.27, one study, 480 participants, low-quality evidence). Caries After 24 to 36 months of use, triclosan/copolymer toothpaste slightly reduced coronal caries when using the decayed and filled surfaces (DFS) index (MD -0.16, 95% CI -0.31 to -0.02, four studies, 9692 participants, high-quality evidence). The control group mean was 3.44, representing a 5% reduction in coronal caries. After 36 months of use, triclosan/copolymer toothpaste probably reduced root caries (MD -0.31, 95% CI -0.39 to -0.23, one study, 1357 participants, moderate-quality evidence). Calculus After six months of use, triclosan/copolymer toothpaste may have reduced the mean total calculus per participant by 2.12 mm (MD -2.12 mm, 95% CI -3.39 to -0.84, two studies, 415 participants, low-quality evidence). The control group mean was 14.61 mm, representing a 15% reduction in calculus. Adverse effects There were no data available for meta-analysis regarding adverse effects, but 22 studies (73%) reported that there were no adverse effects caused by either the experimental or control toothpaste.There was considerable heterogeneity present in the meta-analyses for plaque, gingivitis and calculus. Plaque and gingivitis showed such consistent results that it did not affect our conclusions, but the reader may wish to interpret the results with more caution.
AUTHORS' CONCLUSIONS: There was moderate-quality evidence showing that toothpastes containing triclosan/copolymer, in addition to fluoride, reduced plaque, gingival inflammation and gingival bleeding when compared with fluoride toothpastes without triclosan/copolymer. These reductions may or may not be clinically important, and are evident regardless of initial plaque and gingivitis levels, or whether a baseline oral prophylaxis had taken place or not. High-quality evidence showed that triclosan/copolymer toothpastes lead to a small reduction in coronal caries. There was weaker evidence to show that triclosan/copolymer toothpastes may have reduced root caries and calculus, but insufficient evidence to show whether or not they prevented periodontitis. There do not appear to be any serious safety concerns regarding the use of triclosan/copolymer toothpastes in studies up to three years in duration.
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