Influence of nanoparticulated chitosan on the biomodification of eroded dentin: clinical and photographic longitudinal analysis of restorations

Autor: Luandra Aparecida Unten Takahashi, Aline Evangelista Souza-Gabriel, Fabiana Almeida Curylofo-Zotti, José C. C. de Souza, Silmara Aparecida Milori Corona, Antonio Claudio Tedesco
Rok vydání: 2021
Předmět:
Adult
Male
Materials science
Surface Properties
Resin restorations
Biomedical Engineering
Biophysics
Dentistry
Bioengineering
02 engineering and technology
Dental Caries
Composite Resins
Biomaterials
03 medical and health sciences
RESTAURAÇÃO DENTÁRIA
0302 clinical medicine
stomatognathic system
Acid Etching
Dental
Dentin
medicine
Humans
Bisphenol A-Glycidyl Methacrylate
Dental Restoration
Permanent
Chitosan
Acid etching
Pigmentation
business.industry
Significant difference
Reproducibility of Results
030206 dentistry
Population demographics
Dentin Sensitivity
Middle Aged
021001 nanoscience & nanotechnology
Resin Cements
medicine.anatomical_structure
Dentin-Bonding Agents
Nanoparticles
Female
0210 nano-technology
business
Engineering and Nano-engineering Approaches for Medical Devices
Tooth
After treatment
Zdroj: Journal of Materials Science. Materials in Medicine
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
ISSN: 1573-4838
0957-4530
Popis: To evaluate the influence of the pre-treatment with 2.5% nanoparticulate chitosan (2.5% NanoChi) solution on eroded dentin before the restorative dental treatment. The sample consisted of 22 patients (age between 33 and 52 years) with shallow or medium erosion lesions located in two homologous teeth. The teeth were randomly assigned according to dentin treatment: with 2.5% NanoChi and without with chitosan (control). The NanoChi were applied immediately after acid etching. The teeth were restored with Single Bond Universal (3 M) and Charisma resin (Kulzer). Analyzes were done using modified USPHS (retention, secondary caries, marginal adaptation, and sensitivity) and photographic (color, marginal pigmentation, and anatomical form) criteria at 7 days (baseline) and 1 year. Population demographics, Kaplan–Meier estimates and log-rank test (Mantel–Cox) were calculated for 1 year (α = 0.05). No significant difference was found in the survival rates between groups (p > 0.05) at 7 days and 1 year after treatment. After 7 days, 100% of the restorations were scored as Alpha on all criteria. After 1 year, 91% of the NanoChi restorations were scored as Alpha and 9% as Charlie for the retention, marginal adaptation, and anatomical form criteria, while 86% of the control restorations (without NanoChi) received the Alpha score and 14% received the Charlie. Secondary caries, sensitivity, color, and marginal pigmentation criteria were scored as Alpha in 100% of the restorations. The biomodification of eroded dentin with 2.5% NanoChi did not influence the survival of the restorations after 1 year. The application of 2.5% NanoChi on eroded dentin did not increase failures of resin restorations after 1 year and it can be used as a pre-treatment solution.
Databáze: OpenAIRE
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