{"title":"Anti-erosive effect of fluoride solutions associated with methacrylate polymer: A randomized crossover in situ study","authors":"Taiana Paola Prado , Karine Carvalho Santos , Carlos Rocha Gomes Torres , Taís Scaramucci , Idalina Vieira Aoki , Alessandra Buhler Borges","doi":"10.1016/j.jdent.2025.105944","DOIUrl":null,"url":null,"abstract":"<div><h3>Objectives</h3><div>To evaluate the anti-erosive effect of solutions containing fluoride and aminomethacrylate copolymer associations on enamel and dentin, using a randomized crossover in situ model.</div></div><div><h3>Methods</h3><div>Bovine enamel and dentin specimens were fixed in intraoral devices. Participants (<em>n</em> = 12) installed the devices and rinsed with seven experimental solutions in a randomized sequence, with 2-day washout between them: Ultrapure water-C; Sodium fluoride-F (225 ppmF-); Stannous Chloride-Sn (800 ppm Sn2+); Aminomethacrylate- AA (2 %); FSn; <em>F</em>+AA; FSn+AA. After treatments, they retained the device for acquired pellicle maturation (30 min). Specimens were then extraorally exposed to 0.03 % HCl, pH 2.3 (3 min). This cycling was repeated six times. Calcium released from the acid solutions was measured photometrically, and mineral loss (ML) was calculated. KOHsoluble fluoride (μg/cm2) and surface microhardness (KHNred) were also measured. Data were submitted to RM-ANOVA and Tukey tests (5 %).</div></div><div><h3>Results</h3><div>For mineral loss in enamel, the <em>F</em>+AA and FSn+AA solutions were statistically superior than F and FSn, respectively. In dentin, the <em>F</em>+AA solution showed the best performance (<em>p</em> < 0.001). The KHNred results for the enamel were: <em>C</em> = Sn < AA = <em>F</em> = FSn < <em>F</em>+AA = FSn+AA. The FSn groups exhibited higher concentration of fluoride adsorbed on both enamel and dentin surface (<em>p</em> < 0.05).</div></div><div><h3>Conclusion</h3><div>The addition of aminomethacrylate copolymer to fluoride solutions improved their efficacy in protecting the tooth against erosion in the presence of acquired pellicle, being a promising agent to be incorporated in mouthrinses.</div></div><div><h3>Clinical significance</h3><div>The investigation of the anti-erosive effect of polymers and fluoride provides subsidies for identifying the most promising associations, which open new perspectives for the development of formulations capable of preventing erosion progression to more advanced stages, which requires complex and costly restorative interventions.</div></div>","PeriodicalId":15585,"journal":{"name":"Journal of dentistry","volume":"161 ","pages":"Article 105944"},"PeriodicalIF":4.8000,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of dentistry","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0300571225003884","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
引用次数: 0
Abstract
Objectives
To evaluate the anti-erosive effect of solutions containing fluoride and aminomethacrylate copolymer associations on enamel and dentin, using a randomized crossover in situ model.
Methods
Bovine enamel and dentin specimens were fixed in intraoral devices. Participants (n = 12) installed the devices and rinsed with seven experimental solutions in a randomized sequence, with 2-day washout between them: Ultrapure water-C; Sodium fluoride-F (225 ppmF-); Stannous Chloride-Sn (800 ppm Sn2+); Aminomethacrylate- AA (2 %); FSn; F+AA; FSn+AA. After treatments, they retained the device for acquired pellicle maturation (30 min). Specimens were then extraorally exposed to 0.03 % HCl, pH 2.3 (3 min). This cycling was repeated six times. Calcium released from the acid solutions was measured photometrically, and mineral loss (ML) was calculated. KOHsoluble fluoride (μg/cm2) and surface microhardness (KHNred) were also measured. Data were submitted to RM-ANOVA and Tukey tests (5 %).
Results
For mineral loss in enamel, the F+AA and FSn+AA solutions were statistically superior than F and FSn, respectively. In dentin, the F+AA solution showed the best performance (p < 0.001). The KHNred results for the enamel were: C = Sn < AA = F = FSn < F+AA = FSn+AA. The FSn groups exhibited higher concentration of fluoride adsorbed on both enamel and dentin surface (p < 0.05).
Conclusion
The addition of aminomethacrylate copolymer to fluoride solutions improved their efficacy in protecting the tooth against erosion in the presence of acquired pellicle, being a promising agent to be incorporated in mouthrinses.
Clinical significance
The investigation of the anti-erosive effect of polymers and fluoride provides subsidies for identifying the most promising associations, which open new perspectives for the development of formulations capable of preventing erosion progression to more advanced stages, which requires complex and costly restorative interventions.
期刊介绍:
The Journal of Dentistry has an open access mirror journal The Journal of Dentistry: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
The Journal of Dentistry is the leading international dental journal within the field of Restorative Dentistry. Placing an emphasis on publishing novel and high-quality research papers, the Journal aims to influence the practice of dentistry at clinician, research, industry and policy-maker level on an international basis.
Topics covered include the management of dental disease, periodontology, endodontology, operative dentistry, fixed and removable prosthodontics, dental biomaterials science, long-term clinical trials including epidemiology and oral health, technology transfer of new scientific instrumentation or procedures, as well as clinically relevant oral biology and translational research.
The Journal of Dentistry will publish original scientific research papers including short communications. It is also interested in publishing review articles and leaders in themed areas which will be linked to new scientific research. Conference proceedings are also welcome and expressions of interest should be communicated to the Editor.