Characteristics of tin-containing fluoride toothpastes related to erosive tooth wear protection.

Thiago Saads Carvalho, Ítallo Emídio Lira Viana, Taís Scaramucci, Letícia Oba Sakae, Cláudia Allegrini Kairalla, Samira Helena Niemeyer, Anderson Takeo Hara

Journal: Journal of dentistry 2024;143():104901

PMID: 38417610

Full Text on Elsevier Science View on PubMed

Abstract

OBJECTIVES

To assess the effect of different tin-containing toothpastes on the control of erosive tooth wear in enamel and dentin.

METHODS

Enamel and dentin slabs were randomly distributed into 7 experimental groups (n = 10/substrate): C-: negative control (Artificial saliva); AmF (regular fluoridated toothpaste without tin); Sn-1 (SnF/NaF); Sn-2 (SnF/NaF/SnCl); Sn-3 (SnCl/NaF); Sn-4 (SnF/SnCl); Sn-5 (SnCl/AmF/NaF/chitosan). Specimens were submitted to 5-day erosion-abrasion cycling. Surface loss (SL) was determined with an optical profilometer. Tin deposition on the tooth surfaces and some characteristics of the toothpastes (pH, potentially available F, %weight of solid particles, and RDA) were also assessed. Data were statistically analyzed (α = 0.05).

RESULTS

For enamel, the Sn-2 presented the lowest SL, not differing significantly from AmF, C+, and Sn-3. The SL of these groups was significantly lower than the C-, except for Sn-3. Sn-1 and Sn-4 were also not significantly different from C-. For dentin, C- significantly showed the highest SL values, whilst, Sn-1 presented the lowest SL, not differing significantly from AmF, Sn-2, C+, and Sn-3. There was a significant positive association between enamel SL and the pH and tin deposition. Dentin SL was significantly negatively associated with the %weight of solid particles and RDA.

CONCLUSIONS

Most of the tin-toothpastes were able to exhibit some protection against ETW. In this process, the toothpastes characteristics play a role, as lower enamel SL was significantly associated with lower pH values and tin deposition; and lower dentin SL was associated with higher %weight of solid particles and RDA of the toothpastes.

CLINICAL SIGNIFICANCE

Tin-containing toothpastes can be used for erosive tooth wear protection, but our study showed that their effect depends on the pH, amount of tin deposition, % weight of solid particles and RDA of the toohpastes.

Address: Department of Restorative Dentistry, University of São Paulo, School of Dentistry, Av. Prof. Lineu Prestes 2227, São Paulo, SP 05508-000, Brazil.; Department of Restorative Dentistry, University of São Paulo, School of Dentistry, Av. Prof. Lineu Prestes 2227, São Paulo, SP 05508-000, Brazil; Department of Comprehensive Care, Division of Operative Dentistry, Tufts University School of Dental Medicine, 1 Kneeland Street, Boston, MA 02111, USA.; Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, CH-3010 Bern, Switzerland.; Department of Cariology, Operative Dentistry and Dental Public Health, Oral Health Research Institute, Indiana University School of Dentistry, 415 Lansing Street, Indianapolis, IN 46202, USA.; Department of Restorative Dentistry, University of São Paulo, School of Dentistry, Av. Prof. Lineu Prestes 2227, São Paulo, SP 05508-000, Brazil. Electronic address: [email protected].

DOI: 10.1016/j.jdent.2024.104901

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MeSH Terms: Humans, Tin Fluorides, Toothpastes, Fluorides, Tooth Erosion, Tin, Tooth Abrasion, Sodium Fluoride, Toothbrushing, Tooth Wear, Tin Compounds