Subscribe to RSS
![](/products/assets/desktop/img/oa-logo.png)
DOI: 10.1055/s-0039-1697823
Endogenous pH, Titratable Acidity and Total Soluble Solid Content of Mouthwashes Available in the Brazilian Market
Publication History
Publication Date:
30 September 2019 (online)
![](https://www.thieme-connect.de/media/10.1055-s-00042133/201002/lookinside/thumbnails/10-1055-s-0039-1697823_00156-1.jpg)
Objectives: To evaluate in vitro the endogenous pH, titratable acidity and total soluble solid content (TSSC) of mouthwashes available in the Brazilian market.
Methods: The study sample was composed of 10 commercial brands of mouthwashes based on different active ingredients: Cepacol®, Clinerize®, Equate®, Listerine Cool Citrus®, Oral-B®, Periogard ®, Peroxyl®, Plax Overnight®, Prevident 220® and Sanifill®. The experiments were performed in triplicate. The endogenous pH was evaluated by potentiometry, titratable acidity was evaluated by the addition of 0.1N KOH increments to the mouthwashes, and TSSC readings were performed by Brix refractometry using the Abbé refractometer.
Results: pH values ranged from 3.56 (Peroxyl®) to 7.43 (Cepacol®) and three mouthwashes presented pHs below 5.5. The titratable acidity values ranged from 0.007 (Periograd®) to 0.530 (Prevident ®). Oral B® and Clinerize® presented the lowest (4.7%) and the highest (23.70%) TSSC, respectively.
Conclusions: Some of the mouthwashes evaluated in this study presented low endogenous pH, even below the critical value for enamel dissolution (pH<5.5), high titratable acidity and high TSSC, and may be potentially erosive to the dental tissues if not properly used. (Eur J Dent 2010;4:156-159)
-
References
- 1 Thylstrup A, Fejerskov O. Textbook of Clinical Cariology. 2nd ed. Munksgaard: Copenhagen; 1994
- 2 Corso S, Corso AC, Hugo FN, Padilha DMP. Evaluation of the erosive potencial of oral mouthwashes. Rev Odonto Ciênc 2004; 19: 233-237
- 3 Watson IB, Tulloch EN. Clinical assessment of cases of tooth surface loss. Br Dent J 1985; 159: 144-148
- 4 Lima AL, Valença AMG, Albuquerque FR, Silva NB. Analysis of pH and viscosity of commercially available fluoride mouthrinses in the city of João Pessoa/PB. Pesq Bras Odontoped Clin Integr 2005; 5: 223-228
- 5 Bhatti SA, Walsh TF, Douglas CW. Ethanol and pH levels of proprietary mouthrinses. Community Dent Health 1994; 11: 71-74
- 6 Birkhed D. Sugar content, acidity and effect on plaque pH of fruit juices, fruit drinks, carbonated beverages and sports drinks. Caries Res 1984; 18: 120-127
- 7 Adams D, Addy M. Mouthrinses. Adv Dent Res 1994; 8: 291-301
- 8 Pontefract H, Hughes J, Kemp K, Yates R, Newcombe RG, Addy M. The erosive effects of some mouthrinses on enamel. A study in situ. J Clin Periodontol 2001; 28: 319-324
- 9 Pretty IA, Edgar WM, Higham SM. The erosive potential of commercially available mouthrinses on enamel as measured by Quantitative Light-induced Fluorescence (QLF). J Dent 2003; 31: 313-319
- 10 Perdok JF, van der Mei HC, Busscher HJ. Physicochemical properties of commercially available mouthrinses. J Dent 1990; 18: 147-150
- 11 Hellwig E, Lussi A. Oral hygiene products and acidic medicines. Monogr Oral Sci 2006; 20: 112-118
- 12 Costa CC, Almeida ICS, Raymundo MS, Fett R. Analysis of the endogenous pH, acidity and sucrose concentration in pediatric medicines. Rev Odonto Ciênc 2004; 19: 164-169
- 13 Ball DW. Concentration scales for sugar solutions. J Chem Educ 2006; 83: 1489-1491