OBJECTIVE: Regardless of the total amount of fluoride (F) in a dentifrice, only the soluble fraction presents anti-caries activity and its concentration must be above 1000 ppm. No information regarding the quality of F in Chilean toothpastes is available. The aim of this study, therefore, was to determine the F concentration present in commercially-available toothpastes in Chile. MATERIALS AND METHODS: Eighteen toothpastes of five different brands were tested, each purchased from three different chain drugstores in Chile. For each toothpaste, total, total soluble and ionic F concentrations were assessed and expressed as ppm of F (μg F/g). RESULTS: Among the dentifrices evaluated, 77.8% contained NaF (sodium fluoride), 16.7% MFP (monofluorphosphate) and 5.6% both types of F salts; 77.2% of the dentifrices showed similar total F content to that declared by the manufacturer in the labeling with only five with lower concentration than expected, beyond a 5% disagreement tolerance range. Total soluble F ranged from 958.8-1496.3 ppm (mean ± SD: 1270.5 ± 183.7). Five toothpastes showed lower total soluble F than total F. Only one toothpaste showed soluble salt levels below the recommended dose for this type of dentifrice. CONCLUSION: Most Chilean dentifrices evaluated contained soluble F within the range of 1000-1500 ppm and, therefore, may have anti-caries activity.
OBJECTIVE: Regardless of the total amount of fluoride (F) in a dentifrice, only the soluble fraction presents anti-caries activity and its concentration must be above 1000 ppm. No information regarding the quality of F in Chilean toothpastes is available. The aim of this study, therefore, was to determine the F concentration present in commercially-available toothpastes in Chile. MATERIALS AND METHODS: Eighteen toothpastes of five different brands were tested, each purchased from three different chain drugstores in Chile. For each toothpaste, total, total soluble and ionic F concentrations were assessed and expressed as ppm of F (μg F/g). RESULTS: Among the dentifrices evaluated, 77.8% contained NaF (sodium fluoride), 16.7% MFP (monofluorphosphate) and 5.6% both types of F salts; 77.2% of the dentifrices showed similar total F content to that declared by the manufacturer in the labeling with only five with lower concentration than expected, beyond a 5% disagreement tolerance range. Total soluble F ranged from 958.8-1496.3 ppm (mean ± SD: 1270.5 ± 183.7). Five toothpastes showed lower total soluble F than total F. Only one toothpaste showed soluble salt levels below the recommended dose for this type of dentifrice. CONCLUSION: Most Chilean dentifrices evaluated contained soluble F within the range of 1000-1500 ppm and, therefore, may have anti-caries activity.
Authors: Peiyan Shen; James R Fernando; Yi Yuan; Glenn D Walker; Coralie Reynolds; Eric C Reynolds Journal: Sci Rep Date: 2021-01-08 Impact factor: 4.379
Authors: Mohammed Nadeem Bijle; James Tsoi; Manikandan Ekambaram; Edward C M Lo; Clifton M Carey; Cynthia Kar Yung Yiu Journal: Sci Rep Date: 2020-11-30 Impact factor: 4.379
Authors: Maria José L Oliveira; Carolina C Martins; Saul M Paiva; Livia M A Tenuta; Jaime A Cury Journal: Int J Environ Res Public Health Date: 2013-11-01 Impact factor: 3.390