Assessment of Penetration Depth of Silver Diamine Fluoride in Synthetic Dental Minerals

Dental caries is a prevalent global health issue characterized by the progressive demineralization of dental tissues, which occurs when the balance between demineralization and remineralization processes is disrupted at the tooth level. Silver diamine fluoride (SDF) has gained recognition for its ab...

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Main Authors: Daniella Battaglia, Brunna da Silva Nobrega Souza, Ana Carla B. C. J. Fernandes, Rodrigo França
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Inorganics
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Online Access:https://www.mdpi.com/2304-6740/13/3/81
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author Daniella Battaglia
Brunna da Silva Nobrega Souza
Ana Carla B. C. J. Fernandes
Rodrigo França
author_facet Daniella Battaglia
Brunna da Silva Nobrega Souza
Ana Carla B. C. J. Fernandes
Rodrigo França
author_sort Daniella Battaglia
collection DOAJ
description Dental caries is a prevalent global health issue characterized by the progressive demineralization of dental tissues, which occurs when the balance between demineralization and remineralization processes is disrupted at the tooth level. Silver diamine fluoride (SDF) has gained recognition for its ability to arrest caries. However, its interaction with mineralized tissues remains incompletely understood. This study aimed to investigate the chemical interactions between SDF and mineralized bioceramics, using hydroxyapatite (HA) and beta-tricalcium phosphate (β-TCP) as analogs for enamel and dentin. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) were employed to identify functional groups and quantify elemental compositions at varying depths. FTIR analysis revealed structural modifications in HA and β-TCP. XPS demonstrated high retention of fluoride, with limited penetration into deeper layers, while silver exhibited deeper penetration. These findings suggest that SDF primarily acts on superficial layers, forming calcium fluoride and silver phosphate as key reaction products. These findings highlight the potential of SDF in managing deep carious lesions by demonstrating its ability to form a protective CaF<sub>2</sub> layer at the surface while allowing deeper penetration of silver ions into mineralized tissues. This dual mechanism may contribute to SDF’s clinical efficacy in arresting caries and preventing further demineralization.
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spelling doaj-art-4daae90749b145b3a936bf1acc8436412025-08-20T02:11:20ZengMDPI AGInorganics2304-67402025-03-011338110.3390/inorganics13030081Assessment of Penetration Depth of Silver Diamine Fluoride in Synthetic Dental MineralsDaniella Battaglia0Brunna da Silva Nobrega Souza1Ana Carla B. C. J. Fernandes2Rodrigo França3Dental Biomaterials Research Lab, Department of Restorative-Dentistry, College of Dentistry, University of Manitoba, Winnipeg, MB R3E 0W2, CanadaDepartment of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos 12245-000, BrazilDental Biomaterials Research Lab, Department of Restorative-Dentistry, College of Dentistry, University of Manitoba, Winnipeg, MB R3E 0W2, CanadaDental Biomaterials Research Lab, Department of Restorative-Dentistry, College of Dentistry, University of Manitoba, Winnipeg, MB R3E 0W2, CanadaDental caries is a prevalent global health issue characterized by the progressive demineralization of dental tissues, which occurs when the balance between demineralization and remineralization processes is disrupted at the tooth level. Silver diamine fluoride (SDF) has gained recognition for its ability to arrest caries. However, its interaction with mineralized tissues remains incompletely understood. This study aimed to investigate the chemical interactions between SDF and mineralized bioceramics, using hydroxyapatite (HA) and beta-tricalcium phosphate (β-TCP) as analogs for enamel and dentin. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) were employed to identify functional groups and quantify elemental compositions at varying depths. FTIR analysis revealed structural modifications in HA and β-TCP. XPS demonstrated high retention of fluoride, with limited penetration into deeper layers, while silver exhibited deeper penetration. These findings suggest that SDF primarily acts on superficial layers, forming calcium fluoride and silver phosphate as key reaction products. These findings highlight the potential of SDF in managing deep carious lesions by demonstrating its ability to form a protective CaF<sub>2</sub> layer at the surface while allowing deeper penetration of silver ions into mineralized tissues. This dual mechanism may contribute to SDF’s clinical efficacy in arresting caries and preventing further demineralization.https://www.mdpi.com/2304-6740/13/3/81diamine silver fluoridedental decayhydroxyapatite derivatestopical fluoridessilver compounds
spellingShingle Daniella Battaglia
Brunna da Silva Nobrega Souza
Ana Carla B. C. J. Fernandes
Rodrigo França
Assessment of Penetration Depth of Silver Diamine Fluoride in Synthetic Dental Minerals
Inorganics
diamine silver fluoride
dental decay
hydroxyapatite derivates
topical fluorides
silver compounds
title Assessment of Penetration Depth of Silver Diamine Fluoride in Synthetic Dental Minerals
title_full Assessment of Penetration Depth of Silver Diamine Fluoride in Synthetic Dental Minerals
title_fullStr Assessment of Penetration Depth of Silver Diamine Fluoride in Synthetic Dental Minerals
title_full_unstemmed Assessment of Penetration Depth of Silver Diamine Fluoride in Synthetic Dental Minerals
title_short Assessment of Penetration Depth of Silver Diamine Fluoride in Synthetic Dental Minerals
title_sort assessment of penetration depth of silver diamine fluoride in synthetic dental minerals
topic diamine silver fluoride
dental decay
hydroxyapatite derivates
topical fluorides
silver compounds
url https://www.mdpi.com/2304-6740/13/3/81
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AT anacarlabcjfernandes assessmentofpenetrationdepthofsilverdiaminefluorideinsyntheticdentalminerals
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