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Chen D, Chew D, Xiang Q, Lam T, Dai Y, Liu J, Wang L, He T, Strand R, Zhang X, Lim L, Xu J, Shi Y, Dong W. Interactions and effects of a stannous-containing sodium fluoride dentifrice on oral pathogens and the oral microbiome. Front Microbiol 2024; 15:1327913. [PMID: 38426054 PMCID: PMC10902866 DOI: 10.3389/fmicb.2024.1327913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 02/02/2024] [Indexed: 03/02/2024] Open
Abstract
Numerous studies have investigated the effects of stannous ions on specific microbes and their efficacy in reducing dental plaque. Nonetheless, our understanding of their impact on the oral microbiome is still a subject of ongoing exploration. Therefore, this study sought to evaluate the effects of a stannous-containing sodium fluoride dentifrice in comparison to a zinc-containing sodium fluoride dentifrice and a control group on intact, healthy oral biofilms. Utilizing the novel 2bRAD-M approach for species-resolved metagenomics, and FISH/CLSM with probes targeting periodontal and caries associated species alongside Sn2+ and Zn2+ ions, we collected and analyzed in situ biofilms from 15 generally healthy individuals with measurable dental plaque and treated the biofilms with dentifrices to elucidate variations in microbial distribution. Although significant shifts in the microbiome upon treatment were not observed, the use of a stannous-containing sodium fluoride dentifrice primarily led to an increase in health-associated commensal species and decrease in pathogenic species. Notably, FISH/CLSM analysis highlighted a marked reduction in representative species associated with periodontitis and caries following treatment with the use of a stannous-containing sodium fluoride dentifrice, as opposed to a zinc-containing sodium fluoride dentifrice and the control group. Additionally, Sn2+ specific intracellular imaging reflected the colocalization of Sn2+ ions with P. gingivalis but not with other species. In contrast, Zn2+ ions exhibited non-specific binding, thus suggesting that Sn2+ could exhibit selective binding toward pathogenic species. Altogether, our results demonstrate that stannous ions could help to maintain a healthy oral microbiome by preferentially targeting certain pathogenic bacteria to reverse dysbiosis and underscores the importance of the continual usage of such products as a preventive measure for oral diseases and the maintenance of health.
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Affiliation(s)
- Danyan Chen
- State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Periodontology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Stomatology, Yiwu Central Hospital, Yiwu, Zhejiang, China
| | - Dillon Chew
- Singapore Innovation Center, The Procter & Gamble Company, Singapore, Singapore
| | - Qianfeng Xiang
- Department of Dentistry-Regenerative Biomaterials, Radboud University Medical Center, Nijmegen, Netherlands
| | - TzeHau Lam
- Singapore Innovation Center, The Procter & Gamble Company, Singapore, Singapore
| | - Yajie Dai
- Single-Cell Center, CAS Key Laboratory of Biofuels and Shandong Key Laboratory of Energy Genetics, Shandong Energy Institute, Qingdao Institute of BioEnergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong, China
| | - Jiquan Liu
- Singapore Innovation Center, The Procter & Gamble Company, Singapore, Singapore
| | - Lijiang Wang
- Procter & Gamble Technology Co. Ltd, Beijing, China
| | - Tao He
- The Procter & Gamble Company, Mason, OH, United States
| | - Ross Strand
- Singapore Innovation Center, The Procter & Gamble Company, Singapore, Singapore
| | - Xiaolan Zhang
- Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Linda Lim
- Singapore Innovation Center, The Procter & Gamble Company, Singapore, Singapore
| | - Jian Xu
- Single-Cell Center, CAS Key Laboratory of Biofuels and Shandong Key Laboratory of Energy Genetics, Shandong Energy Institute, Qingdao Institute of BioEnergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong, China
- College of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - Yunming Shi
- Procter & Gamble Technology Co. Ltd, Beijing, China
| | - Weili Dong
- State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Periodontology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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Johannes N, Hertel S, Stoffel V, Hannig C, Basche S, Schmitt V, Flemming J, Hannig M. Impact of pH-adjusted fluoride and stannous solutions on the protective properties on the pellicle layer in vitro and in situ. Sci Rep 2024; 14:3378. [PMID: 38336814 PMCID: PMC10858267 DOI: 10.1038/s41598-024-53732-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 02/04/2024] [Indexed: 02/12/2024] Open
Abstract
This study evaluates the ideal pH for anti-erosion and anti-adherent efficacy of fluoride and stannous solutions (sodium fluoride (SF), amine fluoride (AF), sodium monofluorophosphate (SMFP), stannous fluoride (SnF2) with 500 ppm fluoride concentration each and stannous chloride (SnCl2, 1563 ppm stannous)). In vitro, solutions were tested at pH 4.5 and 5.5. The main in situ experiments were carried out at the pH of 4.5: For pellicle formation 6 volunteers wore bovine enamel slabs intraorally for 1 min, rinsed with 8 ml solution for 1 min and continued for up to 30 min/8 h. Physiological pellicle samples served as controls. After incubation in HCl (2.0, 2.3) for 2 min mineral release was determined photometrically. Bacterial counts on 8 h biofilms were determined by fluorescence microscopy (BacLight™ and DAPI with Concanavalin A). Modification of the pellicle ultrastructure was examined by TEM. Statistical analysis was performed using Kruskal-Wallis and Mann-Whitney-U tests with Bonferroni-correction (p < 0.05). SnF2 showed a significant erosion protection. AF, SnF2, and SnCl2 were most anti-adherent. SnF2 and SnCl2 caused a pronounced basal pellicle with stannous precipitates. Compared to other fluoride monosubstances, stannous ions offer greater protection against erosive acidic attacks. Stannous ions act as crucial co-factor in this process.
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Affiliation(s)
- N Johannes
- Clinic of Operative and Pediatric Dentistry, Medical Faculty Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - S Hertel
- Clinic of Operative and Pediatric Dentistry, Medical Faculty Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany.
| | - V Stoffel
- Clinic of Operative and Pediatric Dentistry, Medical Faculty Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - C Hannig
- Clinic of Operative and Pediatric Dentistry, Medical Faculty Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - S Basche
- Clinic of Operative and Pediatric Dentistry, Medical Faculty Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - V Schmitt
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, University Hospital, Saarland University, Building 73, 66421, Homburg, Saar, Germany
| | - J Flemming
- Clinic of Operative and Pediatric Dentistry, Medical Faculty Carl Gustav Carus, TU Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - M Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, University Hospital, Saarland University, Building 73, 66421, Homburg, Saar, Germany
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Damé-Teixeira N, Deng D, Do T. Streptococcus mutans transcriptome in the presence of sodium fluoride and sucrose. Arch Oral Biol 2019; 102:186-192. [PMID: 31071638 DOI: 10.1016/j.archoralbio.2019.04.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 04/27/2019] [Accepted: 04/29/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVE Considering the diverse mechanisms by which fluoride could affect oral bacteria, this study evaluated the effect of sodium fluoride onStreptococcus mutans transcriptome in the presence of sucrose. METHODS S. mutans UA159 was cultured in 3 different types of media: medium control[TY], sucrose control[TY_S], and sodium fluoride sucrose test[TY_S_NaF]. Triplicates of each group were sampled at exponential phase 3 h after inoculation, total RNA was isolated, mRNA enriched and cDNA paired-end sequenced (Illumina Hi-Seq2500). RESULTS Genes related toS. mutans adhesion(gtfB and gtfC), acidogenicity and sugar transport were up-regulated in the presence of sucrose(TY_S) and sucrose/fluoride(TY_S_NaF), whereas gene dltA, D-alanine-activating enzyme, which is related to regulation of non-PTS sugar internalization was down-regulated. Up-regulation of the scrA gene and the PTS fructose-and mannose system, as well as functions such as those involved in stress and defence responses and peptidases; and down-regulation of lacACDG and pyruvate formate-lyase were observed in the TY_S_NaF group, as compared to TY_S group. CONCLUSIONS The presence of NaF has decreased the overall gene expression level inS. mutans. However, its major effect seems to be the inducing of expression of genes involved in some PEP:PTS systems and other metabolic transporters which imply specific cellular internalisation of sugars.
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Affiliation(s)
- Naile Damé-Teixeira
- Department of Dentistry, University of Brasilia, Brasilia, Distrito Federal, Brazil
| | - Dongmei Deng
- Department of Preventive Dentistry, Academic Center for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Thuy Do
- Division of Oral Biology, School of Dentistry, University of Leeds, Leeds, West Yorkshire, United Kingdom.
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Featherstone JD, Fontana M, Wolff M. Novel Anticaries and Remineralization Agents: Future Research Needs. J Dent Res 2019; 97:125-127. [PMID: 29355470 DOI: 10.1177/0022034517746371] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- J D Featherstone
- 1 Preventive and Restorative Dental Sciences, School of Dentistry, University of California San Francisco, San Francisco, CA, USA
| | - M Fontana
- 2 Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - M Wolff
- 3 Cariology and Comprehensive Care, College of Dentistry, New York University, New York, NY, USA
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