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CC BY-NC-ND 4.0 · Eur J Dent 2010; 04(02): 156-159
DOI: 10.1055/s-0039-1697823
Original Article
European Journal of Dentistry

Endogenous pH, Titratable Acidity and Total Soluble Solid Content of Mouthwashes Available in the Brazilian Market

Alessandro Leite Cavalcanti
a   Department of Pediatric Dentistry, School of Dentistry, State University of Paraiba, Campina Grande, PB, Brazil
,
Ianny Alves Ramos
b   School of Dentistry, State University of Paraíba, Campina Grande, Brazil
,
Rafaela Bastos Leite
b   School of Dentistry, State University of Paraíba, Campina Grande, Brazil
,
Mariana da Costa Oliveira
b   School of Dentistry, State University of Paraíba, Campina Grande, Brazil
,
Karynna de Melo Menezes
b   School of Dentistry, State University of Paraíba, Campina Grande, Brazil
,
Lígia Virgínio Fernandes
b   School of Dentistry, State University of Paraíba, Campina Grande, Brazil
,
Ricardo Dias de Castro
c   Paraiba Federal University, João Pessoa, PB, Brazil.
,
Fernando Fernandes Vieira
d   Department of Analytical Chemistry, School of Chemistry, State University of Paraiba, Campina Grande, PB, Brazil
› Author Affiliations
Further Information

Publication History

Publication Date:
30 September 2019 (online)

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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)

Keywords

Mouthwashes - Hydrogen-Ion concentration - Dental plaque - Tooth erosion
 

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