1
|
Fraiz GM, Bonifácio DB, Lacerda UV, Cardoso RR, Corich V, Giacomini A, Martino HSD, Echeverría SE, Barros FARD, Milagro FI, Bressan J. Green Tea Kombucha Impacts Inflammation and Salivary Microbiota in Individuals with Excess Body Weight: A Randomized Controlled Trial. Nutrients 2024; 16:3186. [PMID: 39339787 PMCID: PMC11435194 DOI: 10.3390/nu16183186] [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: 09/04/2024] [Revised: 09/15/2024] [Accepted: 09/18/2024] [Indexed: 09/30/2024] Open
Abstract
BACKGROUND Green tea kombucha (GTK) is a fermented beverage with promising health benefits, but few studies proved its impact on human health. Thus, we aimed to investigate the impact of GTK on weight loss, inflammation, and salivary microbiota in individuals with excess body weight. METHODS This is a randomized controlled clinical trial that lasted 10 weeks with two groups of individuals with excess body weight: control (CG; n = 29; caloric restriction) and kombucha (KG; n = 30; caloric restriction + 200 mL GTK). Body composition, anthropometry, saliva, and blood collection were performed in the beginning and end of the intervention. Plasma interleukins were determined by flow cytometry. Salivary microbiota was analyzed by 16S rRNA sequencing. RESULTS Both groups decreased weight, BMI, and body fat (p < 0.001) after the intervention, but there were no differences between groups. The KG reduced lipid accumulation product (LAP) (p = 0.029). Both groups decreased IL-1β and IL-8, but IL-6 increased in the CG (p = 0.023) compared to the kombucha group. Alpha and beta diversity of salivary microbiota increased in the KG. Moreover, the KG presented lower Bacillota/Bacteroidota ratio (p = 0.028), and BMI was positively associated with the Bacillota phylum. CONCLUSIONS GTK did not enhance weight loss, but it decreased the LAP. GTK helped in the inflammatory profile and induced positive changes in oral microbiota composition.
Collapse
Affiliation(s)
- Gabriela Macedo Fraiz
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil
- Department of Nutrition, Food Science and Physiology, Centre for Nutrition Research, University of Navarra, 31008 Pamplona, Spain
| | - Dandara Baia Bonifácio
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil
| | | | | | - Viviana Corich
- Department of Agronomy, Food Natural Resources, and Environment (DAFNAE), Università degli Studi di Padova, 35020 Legnaro, Italy
| | - Alessio Giacomini
- Department of Agronomy, Food Natural Resources, and Environment (DAFNAE), Università degli Studi di Padova, 35020 Legnaro, Italy
| | | | - Sergio Esteban Echeverría
- Department of Nutrition, Food Science and Physiology, Centre for Nutrition Research, University of Navarra, 31008 Pamplona, Spain
| | | | - Fermín I Milagro
- Department of Nutrition, Food Science and Physiology, Centre for Nutrition Research, University of Navarra, 31008 Pamplona, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición (CIBERobn), Institute of Health Carlos III, 28029 Madrid, Spain
- Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain
| | - Josefina Bressan
- Department of Nutrition and Health, Universidade Federal de Viçosa, Viçosa 36570-900, Brazil
| |
Collapse
|
2
|
Jeong J, Ahn K, Yun K, Kim M, Choi Y, Han M, Mun S, Kim YT, Lee KE, Kim MY, Ahn Y, Han K. Exploring oral bacterial compositional network in two oral disease groups using a convergent approach of NGS-molecular diagnostics. Genes Genomics 2024; 46:881-898. [PMID: 38847972 DOI: 10.1007/s13258-024-01526-6] [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: 04/20/2024] [Accepted: 05/26/2024] [Indexed: 08/17/2024]
Abstract
BACKGROUND Since most of the commonly known oral diseases are explained in link with balance of microbial community, an accurate bacterial taxonomy profiling for determining bacterial compositional network is essential. However, compared to intestinal microbiome, research data pool related to oral microbiome is small, and general 16S rRNA screening method has a taxonomy misclassification issue in confirming complex bacterial composition at the species level. OBJECTIVE Present study aimed to explore bacterial compositional networks at the species level within saliva of 39 oral disease patients (Dental Caries group: n = 26 and Periodontitis group: n = 13) through comparison with public Korean-specific healthy oral microbiome data. METHODS Here, we applied comprehensive molecular diagnostics based on qRT-PCR and Sanger sequencing methods to complement the technical limitations of NGS-based 16S V3-V4 amplicon sequencing technology. RESULTS As a result of microbiome profiling at the genus level, relative frequencies of many nitrate-reducing bacteria within each oral disease group were found to be significantly low compared to the healthy group. In addition, the molecular diagnostics-based bacterial identification method allowed the determination of the correct taxonomy of screened primary colonizers (Streptococcus and Actinomyces unclassification clusters) for each oral disease. Finally, as with the results of microbiome profiling at the genus level, many core-species classified within the saliva of each oral disease group were also related to nitrate-reduction, and it was estimated that various pathogens associated with each disease formed a bacterial network with the core-species. CONCLUSION Our study introduced a novel approach that can compensate for the difficulty of identifying an accurate bacterial compositional network at the species level due to unclear taxonomy classification by using the convergent approach of NGS-molecular diagnostics. Ultimately, we suggest that our experimental approach and results could be potential reference materials for researchers who intend to prevent oral disease by determining the correlation between oral health and bacterial compositional network according to the changes in the relative frequency for nitrate-reducing species.
Collapse
Affiliation(s)
- Jinuk Jeong
- Department of Bioconvergence Engineering, Dankook University, Yongin, 16890, Republic of Korea
| | - Kung Ahn
- HuNbiome Co., Ltd, R&D Center, Gasan Digital 1-Ro, Geumcheon-Gu, Seoul, Korea
| | - Kyeongeui Yun
- HuNbiome Co., Ltd, R&D Center, Gasan Digital 1-Ro, Geumcheon-Gu, Seoul, Korea
- Department of Microbiology, College of Science & Technology, Dankook University, Cheonan, 31116, Republic of Korea
| | - Minseo Kim
- Department of Microbiology, College of Science & Technology, Dankook University, Cheonan, 31116, Republic of Korea
| | - Yeseul Choi
- Department of Microbiology, College of Science & Technology, Dankook University, Cheonan, 31116, Republic of Korea
| | - Miyang Han
- Department of Microbiology, College of Science & Technology, Dankook University, Cheonan, 31116, Republic of Korea
| | - Seyoung Mun
- College of Science & Technology, Dankook University, Cheonan, 31116, Republic of Korea
- Smart Animal Bio Institute, Dankook University, Cheonan, Republic of Korea
- Center for Bio-Medical Engineering Core Facility, Dankook University, Cheonan, Republic of Korea
| | - Yeon-Tae Kim
- Department of Periodontology, Daejeon Dental Hospital, Institute of Wonkwang Dental Research, Wonkwang University College of Dentistry, Daejeon, Korea
| | - Kyung Eun Lee
- Department of Oral Medicine, Department of Anesthesiology, School of Dentistry, Jeonbuk National University, Jeonju, 54896, Korea
| | - Moon-Young Kim
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Dankook University, Cheonan, 31116, Korea
| | - Yongju Ahn
- HuNbiome Co., Ltd, R&D Center, Gasan Digital 1-Ro, Geumcheon-Gu, Seoul, Korea.
| | - Kyudong Han
- Department of Bioconvergence Engineering, Dankook University, Yongin, 16890, Republic of Korea.
- HuNbiome Co., Ltd, R&D Center, Gasan Digital 1-Ro, Geumcheon-Gu, Seoul, Korea.
- Department of Microbiology, College of Science & Technology, Dankook University, Cheonan, 31116, Republic of Korea.
- College of Science & Technology, Dankook University, Cheonan, 31116, Republic of Korea.
- Smart Animal Bio Institute, Dankook University, Cheonan, Republic of Korea.
- Center for Bio-Medical Engineering Core Facility, Dankook University, Cheonan, Republic of Korea.
| |
Collapse
|
3
|
Sabbagh S, Adatorwovor R, Kirakodu S, Rojas-Ramirez MV, Al-Sabbagh M, Dawson D, Fernandes JG, Miguel MMV, Villasante-Tezanos A, Shaddox L. Periodontal inflammatory and microbial profiles in healthy young African Americans and Caucasians. J Clin Periodontol 2024; 51:895-904. [PMID: 38763508 PMCID: PMC11182714 DOI: 10.1111/jcpe.13989] [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: 09/22/2023] [Revised: 03/22/2024] [Accepted: 04/01/2024] [Indexed: 05/21/2024]
Abstract
AIM This study aimed to compare microbial and inflammatory profiles in periodontally/systemically healthy African American (AA) and Caucasian (C) individuals. MATERIALS AND METHODS Thirty-seven C and 46 AA aged from 5 to 25 years were evaluated regarding periodontal disease, caries, microbial subgingival profile via 16-s sequencing, as well as salivary and gingival crevicular fluid (GCF) inflammatory profile via multiplex assay. RESULTS Greater probing depth percentage was detected in AA (p = .0075), while a higher percentage of caries index (p = .0069) and decayed, missing, filled teeth (DMFT) index (p = .0089) was observed in C, after adjusting for number of teeth, sex and age. Salivary levels of IL-6, IL-8 and TNFα were higher for C, whereas GCF levels of eotaxin, IL-12p40, IL-12p70, IL-2 and MIP-1α were higher in AA (p < .05). Different microbial profiles were observed between the races (p = .02). AA presented higher abundance of periodontopathogens (such as Tanerella forsythia, Treponema denticola, Filifactor alocis, among others), and C presented more caries-associated bacteria (such as Streptococcus mutans and Prevotella species). Bacillaceae and Lactobacillus species were associated with higher DMFT index, whereas Fusobacterium and Tanerella species with periodontal disease parameters. CONCLUSIONS A different inflammatory and bacterial profile was observed between healthy AA and C, which may predispose these races to higher susceptibility to specific oral diseases.
Collapse
Affiliation(s)
- Samer Sabbagh
- Department of Oral Health Practice, Periodontology Division, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
| | - Reuben Adatorwovor
- Department of Biostatistics, College of Public Health, University of Kentucky, Lexington, Kentucky, USA
| | - Sreenatha Kirakodu
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
| | - Marcia V Rojas-Ramirez
- Department of Oral Health Practice, Division of Oral Medicine, Oral Diagnosis, and Oral Radiology, University of Kentucky, Lexington, Kentucky, USA
| | - Mohanad Al-Sabbagh
- Department of Oral Health Practice, Periodontology Division, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
| | - Dolphus Dawson
- Department of Oral Health Practice, Periodontology Division, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
| | | | - Manuela Maria Viana Miguel
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
- Division of Periodontics, Institute of Science and Technology - São Paulo State University (Unesp), São José dos Campos, São Paulo, Brazil
| | - Alejandro Villasante-Tezanos
- Department of Preventive Medicine and Population Health, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Luciana Shaddox
- Department of Oral Health Practice, Periodontology Division, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
- Center for Oral Health Research, College of Dentistry, University of Kentucky, Lexington, Kentucky, USA
| |
Collapse
|
4
|
Tan R, Zhu X, Chen S, Zhang J, Liu Z, Li Z, Fan H, Wang X, Yang L. Caries lesions diagnosis with deep convolutional neural network in intraoral QLF images by handheld device. BMC Oral Health 2024; 24:754. [PMID: 38951770 PMCID: PMC11218122 DOI: 10.1186/s12903-024-04517-x] [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: 04/24/2024] [Accepted: 06/21/2024] [Indexed: 07/03/2024] Open
Abstract
OBJECTIVES This study investigated the effectiveness of a deep convolutional neural network (CNN) in diagnosing and staging caries lesions in quantitative light-induced fluorescence (QLF) images taken by a self-manufactured handheld device. METHODS A small toothbrush-like device consisting of a 400 nm UV light-emitting lamp with a 470 nm filter was manufactured for intraoral imaging. A total of 133 cases with 9,478 QLF images of teeth were included for caries lesion evaluation using a CNN model. The database was divided into development, validation, and testing cohorts at a 7:2:1 ratio. The accuracy, sensitivity, specificity, positive predictive value, negative predictive value, and area under the receiver operating characteristic curve (AUC) were calculated for model performance. RESULTS The overall caries prevalence was 19.59%. The CNN model achieved an AUC of 0.88, an accuracy of 0.88, a specificity of 0.94, and a sensitivity of 0.64 in the validation cohort. They achieved an overall accuracy of 0.92, a sensitivity of 0.95 and a specificity of 0.55 in the testing cohort. The model can distinguish different stages of caries well, with the best performance in detecting deep caries followed by intermediate and superficial lesions. CONCLUSIONS Caries lesions have typical characteristics in QLF images and can be detected by CNNs. A QLF-based device with CNNs can assist in caries screening in the clinic or at home. TRIAL REGISTRATION The clinical trial was registered in the Chinese Clinical Trial Registry (No. ChiCTR2300073487, Date: 12/07/2023).
Collapse
Affiliation(s)
- Rukeng Tan
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, Guangzhou, 510055, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou, 510080, Guangdong, China
| | - Xinyu Zhu
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, Guangzhou, 510055, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou, 510080, Guangdong, China
| | - Sishi Chen
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, Guangzhou, 510055, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou, 510080, Guangdong, China
| | - Jie Zhang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, Guangzhou, 510055, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou, 510080, Guangdong, China
| | - Zhixin Liu
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, Guangzhou, 510055, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou, 510080, Guangdong, China
| | - Zhengshi Li
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, Guangzhou, 510055, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou, 510080, Guangdong, China
| | - Hang Fan
- Guangzhou Stars Pulse Co., Ltd, 239th Tianhe North Road, Tianhe District, Guangzhou, 510610, Guangdong, China
| | - Xi Wang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, Guangzhou, 510055, Guangdong, China.
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou, 510080, Guangdong, China.
| | - Le Yang
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, Guangzhou, 510055, Guangdong, China.
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, Guangzhou, 510080, Guangdong, China.
| |
Collapse
|
5
|
Ma SY, Zhou QN, Cai S, Zhou Y, Zhang XY, Feng XY, Diao S, Xi JQ, Yu GX, Shang JJ, Yang NY. A comparative study of microbial changes in dental plaque before and after single- and multiappointment treatments in patients with severe early childhood caries. BMC Oral Health 2024; 24:695. [PMID: 38879477 PMCID: PMC11179330 DOI: 10.1186/s12903-024-04458-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 06/07/2024] [Indexed: 06/19/2024] Open
Abstract
BACKGROUND The status of dental caries is closely related to changes in the oral microbiome. In this study, we compared the diversity and structure of the dental plaque microbiome in children with severe early childhood caries (S-ECC) before and after general anaesthesia and outpatient treatment. METHODS Forty children aged 3 to 5 years with S-ECC who had completed whole-mouth dental treatment under general anaesthesia (C1) or in outpatient settings (C2) were selected, 20 in each group. The basic information and oral health status of the children were recorded, and the microbial community structure and diversity of dental plaque before treatment (C1, C2), the day after treatment(C2_0D), 7 days after treatment (C1_7D, C2_7D), 1 month after treatment (C1_1M, C2_1M), and 3 months after treatment (C1_3M, C2_3M) were analysed via 16 S rRNA high-throughput sequencing technology. RESULTS (1) The alpha diversity test showed that the flora richness in the multiappointment group was significantly greater at posttreatment than at pretreatment (P < 0.05), and the remaining alpha diversity index did not significantly differ between the 2 groups (P > 0.05). The beta diversity analysis revealed that the flora structures of the C1_7D group and the C2_3M group were significantly different from those of the other time points within the respective groups (P < 0.05). (2) The core flora existed in both the pre- and posttreatment groups, and the proportion of their flora abundance could be altered depending on the caries status of the children in both groups. Leptotrichia abundance was significantly (P < 0.05) lower at 7 days posttreatment in both the single- and multiappointment groups. Corynebacterium and Corynebacterium_matruchotii were significantly more abundant in the C1_1M and C1_3M groups than in the C1 and C1_7D groups (P < 0.05). Streptococcus, Haemophilus and Haemophilus_parainfluenzae were significantly more abundant in the C1_7D group than in the other groups (P < 0.05). CONCLUSION A single session of treatment under general anaesthesia can cause dramatic changes in the microbial community structure and composition within 7 days after treatment, whereas treatment over multiple appointments may cause slow changes in oral flora diversity.
Collapse
Affiliation(s)
- Shi Ying Ma
- Department of Pediatric Dentistry, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing, 100050, China
- Department of Pediatric Dentistry, Stomatological Hospital affiliated Suzhou Vocational Health College, Suzhou, 215000, China
| | - Qing Nan Zhou
- Department of Pediatric Dentistry, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Shuang Cai
- Department of Pediatric Dentistry, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Yan Zhou
- Department of Pediatric Dentistry, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Xiao Yu Zhang
- Department of Pediatric Dentistry, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Xiao Yu Feng
- Department of Pediatric Dentistry, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Shu Diao
- Department of Pediatric Dentistry, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Jin Qiu Xi
- Department of Pediatric Dentistry, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing, 100050, China
| | - Guo Xia Yu
- Department of Stomatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Jia Jian Shang
- Department of Pediatric Dentistry, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing, 100050, China.
| | - Ning Yan Yang
- Department of Pediatric Dentistry, Beijing Stomatological Hospital & School of Stomatology, Capital Medical University, Beijing, 100050, China.
| |
Collapse
|
6
|
Ichikawa K, Iitani K, Kawase G, Toma K, Arakawa T, Dao DV, Mitsubayashi K. Mouthguard-Type Wearable Sensor for Monitoring Salivary Turbidity to Assess Oral Hygiene. SENSORS (BASEL, SWITZERLAND) 2024; 24:1436. [PMID: 38474972 DOI: 10.3390/s24051436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 02/15/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024]
Abstract
Salivary turbidity is a promising indicator for evaluating oral hygiene. This study proposed a wearable mouthguard-type sensor for continuous and unconstrained measurement of salivary turbidity. The sensor evaluated turbidity by measuring the light transmittance of saliva with an LED and a phototransistor sealed inside a double-layered mouthguard. The sensor was also embedded with a Bluetooth wireless module, enabling the wireless measurement of turbidity. The mouthguard materials (polyethylene terephthalate-glycol and ethylene-vinyl acetate) and the wavelength of the LED (405 nm) were experimentally determined to achieve high sensitivity in salivary turbidity measurement. The turbidity quantification characteristic of the proposed sensor was evaluated using a turbidity standard solution, and the sensor was capable of turbidity quantification over a wide dynamic range of 1-4000 FTU (formazine turbidity unit), including reported salivary turbidity (400-800 FTU). In vitro turbidity measurement using a saliva sample showed 553 FTU, which is equivalent to the same sample measured with a spectrophotometer (576 FTU). Moreover, in vivo experiments also showed results equivalent to that measured with a spectrophotometer, and wireless measurement of salivary turbidity was realized using the mouthguard-type sensor. Based on these results, the proposed mouthguard-type sensor has promising potential for the unconstrained continuous evaluation of oral hygiene.
Collapse
Affiliation(s)
- Kenta Ichikawa
- Department of Biomedical Devices and Instrumentation, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo 101-0062, Japan
| | - Kenta Iitani
- Department of Biomedical Devices and Instrumentation, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo 101-0062, Japan
| | - Gentaro Kawase
- Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8510, Japan
| | - Koji Toma
- Department of Biomedical Devices and Instrumentation, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo 101-0062, Japan
- Department of Electronic Engineering, College of Engineering, Shibaura Institute of Technology, Tokyo 135-8548, Japan
| | - Takahiro Arakawa
- Department of Biomedical Devices and Instrumentation, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo 101-0062, Japan
- Department of Electric and Electronic Engineering, Tokyo University of Technology, Tokyo 192-0982, Japan
| | - Dzung Viet Dao
- School of Engineering and Built Environment, Griffith University, Southport 4222, Australia
- Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan 4111, Australia
| | - Kohji Mitsubayashi
- Department of Biomedical Devices and Instrumentation, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), Tokyo 101-0062, Japan
- Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo 113-8510, Japan
| |
Collapse
|
7
|
Zhang JS, Huang S, Chen Z, Chu CH, Takahashi N, Yu OY. Application of omics technologies in cariology research: A critical review with bibliometric analysis. J Dent 2024; 141:104801. [PMID: 38097035 DOI: 10.1016/j.jdent.2023.104801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/19/2023] Open
Abstract
OBJECTIVES To review the application of omics technologies in the field of cariology research and provide critical insights into the emerging opportunities and challenges. DATA & SOURCES Publications on the application of omics technologies in cariology research up to December 2022 were sourced from online databases, including PubMed, Web of Science and Scopus. Two independent reviewers assessed the relevance of the publications to the objective of this review. STUDY SELECTION Studies that employed omics technologies to investigate dental caries were selected from the initial pool of identified publications. A total of 922 publications with one or more omics technologies adopted were included for comprehensive bibliographic analysis. (Meta)genomics (676/922, 73 %) is the predominant omics technology applied for cariology research in the included studies. Other applied omics technologies are metabolomics (108/922, 12 %), proteomics (105/922, 11 %), and transcriptomics (76/922, 8 %). CONCLUSION This study identified an emerging trend in the application of multiple omics technologies in cariology research. Omics technologies possess significant potential in developing strategies for the detection, staging evaluation, risk assessment, prevention, and management of dental caries. Despite the numerous challenges that lie ahead, the integration of multi-omics data obtained from individual biological samples, in conjunction with artificial intelligence technology, may offer potential avenues for further exploration in caries research. CLINICAL SIGNIFICANCE This review presented a comprehensive overview of the application of omics technologies in cariology research and discussed the advantages and challenges of using these methods to detect, assess, predict, prevent, and treat dental caries. It contributes to steering research for improved understanding of dental caries and advancing clinical translation of cariology research outcomes.
Collapse
Affiliation(s)
| | - Shi Huang
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, PR China
| | - Zigui Chen
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, PR China; Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - Chun-Hung Chu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, PR China
| | - Nobuhiro Takahashi
- Division of Oral Ecology and Biochemistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Ollie Yiru Yu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, PR China.
| |
Collapse
|
8
|
Binhezaim A, Almutairi T, Alsaleem A, Albegamy A, Alsaadon S, Shaikh MS. Effect of light curing on the efficacy of silver diamine fluoride: A systematic review. J Taibah Univ Med Sci 2024; 19:54-63. [PMID: 37868099 PMCID: PMC10589879 DOI: 10.1016/j.jtumed.2023.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/12/2023] [Accepted: 09/11/2023] [Indexed: 10/24/2023] Open
Abstract
Objective This study was aimed at comparing the performance of light-cured (LC) silver diamine fluoride (SDF) to non-LC SDF in dental applications, in terms of various properties. Methods Articles published until April 2023 were retrieved from electronic databases (PubMed, Scopus and Science Direct) according to Boolean operators, and the reference lists of the included articles were manually searched. The included articles were all full-text, original studies in English that assessed the effects of LC SDF compared with SDF alone. The risk of bias in the in vitro studies on dental materials was evaluated with the modified Consolidated Standards of Reporting Trials (CONSORT) checklist. Results Six studies (five in vitro and one ex vivo) were included in qualitative analysis after a comprehensive manual search and electronic database search. Every study compared LC SDF versus non-LC SDF in terms of properties such as penetration depth, silver ion precipitation, dentine hardness, surface morphology and anti-bacterial characteristics. Four studies were categorised as low quality with a high risk of bias, whereas the remaining two studies were considered high quality with a low risk of bias. Conclusion In this investigation, LC SDF, compared with non-LC SDF, was found to be an efficacious approach for enhancing SDF properties. Future high-quality studies, particularly randomised clinical trials, remain necessary to verify these findings. Clinical significance The use of light curing with SDF can be a beneficial strategy that enhances SDF's clinical use. This review comparing various properties of LC SDF and non-LC SDF may help clinicians enhance clinical use and patient acceptance of LC SDF.
Collapse
Affiliation(s)
- Alhanouf Binhezaim
- Department of Pedodontics, Prince Sultan Military Medical City, Riyadh, KSA
| | - Tahani Almutairi
- Department of Pedodontics, Prince Sultan Military Medical City, Riyadh, KSA
| | - Afnan Alsaleem
- Department of Pedodontics, Prince Sultan Military Medical City, Riyadh, KSA
| | - Aida Albegamy
- Department of Orthodontics, Prince Sultan Military Medical City, Riyadh, KSA
| | - Sultana Alsaadon
- Department of Pedodontics, Prince Sultan Military Medical City, Riyadh, KSA
| | - Muhammad Saad Shaikh
- Department of Oral Biology, Sindh Institute of Oral Health Sciences, Jinnah Sindh Medical University, Karachi, Pakistan
| |
Collapse
|
9
|
Foddai SG, Radin M, Barinotti A, Cecchi I, Rubini E, Arbrile M, Mantello E, Menegatti E, Roccatello D, Sciascia S. New Frontiers in Autoimmune Diagnostics: A Systematic Review on Saliva Testing. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:ijerph20105782. [PMID: 37239511 DOI: 10.3390/ijerph20105782] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/02/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023]
Abstract
(1) Background: Immunological laboratory testing is known to be complex, and it is usually performed in tertiary referral centers. Many criticalities affect diagnostic immunological testing, such as limited availability, the need for specifically trained laboratory staff, and potential difficulties in collecting blood samples, especially in the most vulnerable patients, i.e., the elderly and children. For this reason, the identification of a new feasible and reliable methodology for autoantibody detection is urgently needed. (2) Methods: We designed a systematic review to investigate the available literature on the utilization of saliva samples for immunological testing. (3) Results: A total of 170 articles were identified. Eighteen studies met the inclusion criteria, accounting for 1059 patients and 671 controls. The saliva collection method was mostly represented by passive drooling (11/18, 61%), and the most frequently described methodology for antibody detection was ELISA (12/18, 67%). The analysis included 392 patients with rheumatoid arthritis, 161 with systemic lupus erythematosus, 131 with type 1 diabetes mellitus, 116 with primary biliary cholangitis, 100 with pemphigus vulgaris, 50 with bullous pemphigoids, 49 with Sjogren syndrome, 39 with celiac disease, 10 with primary antiphospholipid syndromes, 8 with undifferentiated connective tissue disease, 2 with systemic sclerosis, and 1 with autoimmune thyroiditis. The majority of the reviewed studies involved adequate controls, and saliva testing allowed for a clear distinction of patients (10/12 studies, 83%). More than half of the papers showed a correlation between saliva and serum results (10/18, 55%) for autoantibody detection, with varying rates of correlation, sensitivity, and specificity. Interestingly, many papers showed a correlation between saliva antibody results and clinical manifestations. (4) Conclusions: Saliva testing might represent an appealing alternative to serum-based testing for autoantibody detection, considering the correspondence with serum testing results and the correlation with clinical manifestations. Nonetheless, standardization of sample collection processing, maintenance, and detection methodology has yet to be fully addressed.
Collapse
Affiliation(s)
- Silvia Grazietta Foddai
- University Center of Excellence on Nephrologic, Rheumatologic and Rare Diseases (ERK-Net, ERN-Reconnect and RITA-ERN Member) with Nephrology and Dialysis Unit and Center of Immuno-Rheumatology and Rare Diseases (CMID), Coordinating Center of the Interregional Network for Rare Diseases of Piedmont and Aosta Valley, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy
- Department of Clinical and Biological Sciences, School of Specialization of Clinical Pathology, University of Turin, 10124 Turin, Italy
| | - Massimo Radin
- University Center of Excellence on Nephrologic, Rheumatologic and Rare Diseases (ERK-Net, ERN-Reconnect and RITA-ERN Member) with Nephrology and Dialysis Unit and Center of Immuno-Rheumatology and Rare Diseases (CMID), Coordinating Center of the Interregional Network for Rare Diseases of Piedmont and Aosta Valley, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy
- Department of Clinical and Biological Sciences, School of Specialization of Clinical Pathology, University of Turin, 10124 Turin, Italy
| | - Alice Barinotti
- University Center of Excellence on Nephrologic, Rheumatologic and Rare Diseases (ERK-Net, ERN-Reconnect and RITA-ERN Member) with Nephrology and Dialysis Unit and Center of Immuno-Rheumatology and Rare Diseases (CMID), Coordinating Center of the Interregional Network for Rare Diseases of Piedmont and Aosta Valley, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy
| | - Irene Cecchi
- University Center of Excellence on Nephrologic, Rheumatologic and Rare Diseases (ERK-Net, ERN-Reconnect and RITA-ERN Member) with Nephrology and Dialysis Unit and Center of Immuno-Rheumatology and Rare Diseases (CMID), Coordinating Center of the Interregional Network for Rare Diseases of Piedmont and Aosta Valley, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy
- Department of Clinical and Biological Sciences, School of Specialization of Clinical Pathology, University of Turin, 10124 Turin, Italy
| | - Elena Rubini
- University Center of Excellence on Nephrologic, Rheumatologic and Rare Diseases (ERK-Net, ERN-Reconnect and RITA-ERN Member) with Nephrology and Dialysis Unit and Center of Immuno-Rheumatology and Rare Diseases (CMID), Coordinating Center of the Interregional Network for Rare Diseases of Piedmont and Aosta Valley, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy
| | - Marta Arbrile
- Department of Clinical and Biological Sciences, School of Specialization of Clinical Pathology, University of Turin, 10124 Turin, Italy
| | - Ester Mantello
- University Center of Excellence on Nephrologic, Rheumatologic and Rare Diseases (ERK-Net, ERN-Reconnect and RITA-ERN Member) with Nephrology and Dialysis Unit and Center of Immuno-Rheumatology and Rare Diseases (CMID), Coordinating Center of the Interregional Network for Rare Diseases of Piedmont and Aosta Valley, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy
| | - Elisa Menegatti
- University Center of Excellence on Nephrologic, Rheumatologic and Rare Diseases (ERK-Net, ERN-Reconnect and RITA-ERN Member) with Nephrology and Dialysis Unit and Center of Immuno-Rheumatology and Rare Diseases (CMID), Coordinating Center of the Interregional Network for Rare Diseases of Piedmont and Aosta Valley, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy
- Department of Clinical and Biological Sciences, School of Specialization of Clinical Pathology, University of Turin, 10124 Turin, Italy
| | - Dario Roccatello
- University Center of Excellence on Nephrologic, Rheumatologic and Rare Diseases (ERK-Net, ERN-Reconnect and RITA-ERN Member) with Nephrology and Dialysis Unit and Center of Immuno-Rheumatology and Rare Diseases (CMID), Coordinating Center of the Interregional Network for Rare Diseases of Piedmont and Aosta Valley, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy
- Department of Clinical and Biological Sciences, School of Specialization of Clinical Pathology, University of Turin, 10124 Turin, Italy
| | - Savino Sciascia
- University Center of Excellence on Nephrologic, Rheumatologic and Rare Diseases (ERK-Net, ERN-Reconnect and RITA-ERN Member) with Nephrology and Dialysis Unit and Center of Immuno-Rheumatology and Rare Diseases (CMID), Coordinating Center of the Interregional Network for Rare Diseases of Piedmont and Aosta Valley, Department of Clinical and Biological Sciences, University of Turin, 10154 Turin, Italy
- Department of Clinical and Biological Sciences, School of Specialization of Clinical Pathology, University of Turin, 10124 Turin, Italy
| |
Collapse
|
10
|
Niu Y, Zhang C, Sun Y, Dong L, Si Y, Yang J, Zhu P, Yang F. Symbiotic relationship between Prevotella denticola and Streptococcus mutans enhances virulence of plaque biofilms. Arch Oral Biol 2023; 151:105714. [PMID: 37141746 DOI: 10.1016/j.archoralbio.2023.105714] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/06/2023]
Abstract
OBJECTIVES This study aimed to explore that whether interactions between Prevotella denticola and Streptococcus mutans could promote the establishment of hypervirulent biofilms on teeth surface and eventually influence the occurrence and development of caries. DESIGN Based on single-species biofilms of either P. denticola or S. mutans, and dual-species biofilms of both bacteria, we compared the virulence properties associated with cariogenicity in vitro, including carbohydrate metabolism and acid productivity, synthesis of extracellular polysaccharides, biomass and architecture of biofilms, level of enamel demineralization and expression of virulence genes associated with carbohydrate metabolism and adhesion in S. mutans. RESULTS The data demonstrated that, compared to single-species of above two taxa, dual-species produced lactate by metabolizing carbohydrates at a higher level during the observation period. Moreover, dual-species biofilms accrued more biomass and exhibited more dense microcolonies and abundant extracellular matrix. And it's noticeable that the level of enamel demineralization in dual-species biofilms was more augmented than that of single-species. In addition, the presence of P. denticola induced the expression of virulence genes gtfs and gbpB in S. mutans. CONCLUSIONS Symbiotic relationship between P. denticola and S. mutans enhances caries-associated virulence of plaque biofilms, which might provide new strategies for effective prevention and treatment of caries.
Collapse
Affiliation(s)
- Yufen Niu
- Stomatology Center, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China; School of Stomatology, Dalian Medical University, Dalian, China
| | - Chunyan Zhang
- Stomatology Center, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
| | - Yanfei Sun
- Stomatology Center, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
| | - Lei Dong
- Stomatology Center, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China; School of Stomatology, Dalian Medical University, Dalian, China
| | - Yuan Si
- Stomatology Center, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China
| | - Jiazhen Yang
- Department of Pediatric Dentistry, Qingdao Stomatological Hospital, Qingdao, China
| | - Pengfei Zhu
- Single-Cell Center, CAS Key Laboratory of Biofuels, Shandong Key Laboratory of Energy Genetics, Shandong Energy Institute, Qingdao New Energy Shandong Laboratory, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Fang Yang
- Stomatology Center, Qingdao Hospital, University of Health and Rehabilitation Sciences (Qingdao Municipal Hospital), Qingdao, China.
| |
Collapse
|
11
|
Sun Y, Lu J, Yang J, Liu Y, Liu L, Zeng F, Niu Y, Dong L, Yang F. Construction of a caries diagnosis model based on microbiome novelty score. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2023; 41:208-217. [PMID: 37056188 PMCID: PMC10427253 DOI: 10.7518/hxkq.2023.2022301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 12/30/2022] [Indexed: 04/15/2023]
Abstract
OBJECTIVES This study aimed to analyze the bacteria in dental caries and establish an optimized dental-ca-ries diagnosis model based on 16S ribosomal RNA (rRNA) data of oral flora. METHODS We searched the public databa-ses of microbiomes including NCBI, MG-RAST, EMBL-EBI, and QIITA and collected data involved in the relevant research on human oral microbiomes worldwide. The samples in the caries dataset (1 703) were compared with healthy ones (20 540) by using the microbial search engine (MSE) to obtain the microbiome novelty score (MNS) and construct a caries diagnosis model based on this index. Nonparametric multivariate ANOVA was used to analyze and compare the impact of different host factors on the oral flora MNS, and the model was optimized by controlling related factors. Finally, the effect of the model was evaluated by receiver operating characteristic (ROC) curve analysis. RESULTS 1) The oral microbiota distribution obviously differed among people with various oral-health statuses, and the species richness and species diversity index decreased. 2) ROC curve was used to evaluate the caries data set, and the area under ROC curve was AUC=0.67. 3) Among the five hosts' factors including caries status, country, age, decayed missing filled tooth (DMFT) indices, and sampling site displayed the strongest effect on MNS of samples (P=0.001). 4) The AUC of the model was 0.87, 0.74, 0.74, and 0.75 in high caries, medium caries, low caries samples in Chinese children, and mixed dental plaque samples after controlling host factors, respectively. CONCLUSIONS The model based on the analysis of 16S rRNA data of oral flora had good diagnostic efficiency.
Collapse
Affiliation(s)
- Yanfei Sun
- School of Stomatology, Qingdao University, Qingdao 266003, China
- Dept. of Pediatric Dentistry, Center of Stomatology, Municipal Hospital, Qingdao 266071, China
| | - Jie Lu
- Dept. of Stomatology, Pujiang Stomatological Hospital, Jinhua 322299, China
| | - Jiazhen Yang
- Dept. of Pediatric Dentistry, Stomatological Hospital of Qingdao, Qingdao 266000, China
| | - Yuhan Liu
- Central Laboratory, Stomatological Hospital of Qing-dao, Qingdao 266000, China
| | - Lu Liu
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Fei Zeng
- Dept. of Stomatology, Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - Yufen Niu
- Dept. of Pediatric Dentistry, Center of Stomatology, Municipal Hospital, Qingdao 266071, China
- School of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Lei Dong
- Dept. of Pediatric Dentistry, Center of Stomatology, Municipal Hospital, Qingdao 266071, China
- School of Stomatology, Dalian Medical University, Dalian 116044, China
| | - Fang Yang
- School of Stomatology, Qingdao University, Qingdao 266003, China
- Dept. of Pediatric Dentistry, Center of Stomatology, Municipal Hospital, Qingdao 266071, China
| |
Collapse
|
12
|
Manchanda S, Cheung BPK, Lee GHM, Lo ECM, Yiu CKY. Quantitative analysis of salivary and biofilm bacteria associated with cavitated and non-cavitated carious lesions in pre-school children. Arch Oral Biol 2023; 146:105607. [PMID: 36543040 DOI: 10.1016/j.archoralbio.2022.105607] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To quantify and compare Streptococcus mutans (S. mutans) and Lactobacillus fermentum (L. fermentum) in saliva and biofilm of caries-free children to those with cavitated and non-cavitated lesions. DESIGN One hundred and thirty-five 3-4 years old children were grouped (n = 45 in each group) according to their caries status: Clinical examination was done by a calibrated examiner. Biofilm and saliva were collected to quantify the microorganisms using qRT-PCR. The decayed-missing-filled surfaces (dmfs) was calculated by adding the number of decayed (ICDAS-II score 3-6), filled (ICDAS-II score 7 and 8) and missing (ICDAS-II score 9) surfaces due to caries. The correlation between the bacterial amounts and the number of carious surfaces was evaluated using Spearman's correlation coefficient. The levels and proportions of the microorganisms were compared using the Kruskal-Wallis test at an α-level of 0.05. RESULTS The quantity of S. mutans and L. fermentum was significantly higher in saliva and biofilm of children with cavitated lesions, followed by those with non-cavitated lesions and the lowest in caries-free children. Also, salivary and biofilm S. mutans, along with biofilm L. fermentum levels, significantly correlated with the number of non-cavitated surfaces; while salivary and biofilm S. mutans and L. fermentum levels significantly correlated with the number of cavitated surfaces. Additionally, dmfs scores significantly correlated with the salivary and biofilm S. mutans and L. fermentum levels. CONCLUSIONS S. mutans and L. fermentum in saliva and biofilm samples are associated with caries lesion severity.
Collapse
Affiliation(s)
- Sheetal Manchanda
- Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - B P K Cheung
- Centralized Research Laboratories, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - Gillian H M Lee
- Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - Edward C M Lo
- Dental Public Health, Faculty of Dentistry, The University of Hong Kong, Hong Kong
| | - Cynthia K Y Yiu
- Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong.
| |
Collapse
|
13
|
Salivary microbiome diversity in Chinese children with various caries states. Clin Oral Investig 2023; 27:773-785. [PMID: 36538092 DOI: 10.1007/s00784-022-04825-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 02/06/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVE This study aimed to explore oral microbiome diversity among children with various caries status based on dmft scores. METHODS A total of 320 children aged 3-5 years were recruited, with 66 healthy children and 254 children affected by dental caries. According to dmft scores, these children with dental caries were classified as "mild group" (dmft score 1-3), "moderate group" (dmft score 4-6), and "severe group" (dmft score 7-14). Healthy children with dmft score of 0 served as control group. Illumina MiSeq sequencing was employed to analyze all salivary samples collected from these children. RESULTS The salivary microbial diversity among four groups was similar (p > 0.05). A total of five bacterial genera were highly abundant in the control group including Bergeyella, Acidimicrobiales, Acidimicrobiia, Halomonas, and Blautia (p < 0.05). For mild group, there were nine bacterial genera identified to be predominant: Porphyromonadaceae, Porphyromonas, Enterobacteriales, Enterobacteriaceae, Weissella, Leuconostocaceae, Alphaproteobacteria, Stenotrophomonas, and Rhizobiales (p < 0.05). Only one genus, Aggregatibacter was predominant in moderate group (p < 0.05). There were six bacterial genera (Alistipes, Lachnoclostridium, Escherichia-Shigella, Romboutsia, Sphingomonadales, and Denitratisoma) enriched in severe group (p < 0.05). CONCLUSION Oral microbial profile was different in children with various caries status based on dmft scores. CLINICAL RELEVANCE The results might be beneficial to deeply understand microbiological diversity of early childhood caries (ECC) at various stages and inform effective strategies for ECC prevention.
Collapse
|
14
|
Butcher MC, Short B, Veena CLR, Bradshaw D, Pratten JR, McLean W, Shaban SMA, Ramage G, Delaney C. Meta-analysis of caries microbiome studies can improve upon disease prediction outcomes. APMIS 2022; 130:763-777. [PMID: 36050830 PMCID: PMC9825849 DOI: 10.1111/apm.13272] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/22/2022] [Indexed: 01/11/2023]
Abstract
As one of the most prevalent infective diseases worldwide, it is crucial that we not only know the constituents of the oral microbiome in dental caries but also understand its functionality. Herein, we present a reproducible meta-analysis to effectively report the key components and the associated functional signature of the oral microbiome in dental caries. Publicly available sequencing data were downloaded from online repositories and subjected to a standardized analysis pipeline before analysis. Meta-analyses identified significant differences in alpha and beta diversities of carious microbiomes when compared to healthy ones. Additionally, machine learning and receiver operator characteristic analysis showed an ability to discriminate between healthy and disease microbiomes. We identified from importance values, as derived from random forest analyses, a group of genera, notably containing Selenomonas, Aggregatibacter, Actinomyces and Treponema, which can be predictive of dental caries. Finally, we propose the most appropriate study design for investigating the microbiome of dental caries by synthesizing the studies, which had the most accurate differentiation based on random forest modelling. In conclusion, we have developed a non-biased, reproducible pipeline, which can be applied to microbiome meta-analyses of multiple diseases, but importantly we have derived from our meta-analysis a key group of organisms that can be used to identify individuals at risk of developing dental caries based on oral microbiome inhabitants.
Collapse
Affiliation(s)
- Mark C. Butcher
- Oral Sciences Research Group, Glasgow Dental School, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Bryn Short
- Oral Sciences Research Group, Glasgow Dental School, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Chandra Lekha Ramalingam Veena
- Oral Sciences Research Group, Glasgow Dental School, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | | | | | - William McLean
- Oral Sciences Research Group, Glasgow Dental School, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Suror Mohamad Ahmad Shaban
- Oral Sciences Research Group, Glasgow Dental School, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Gordon Ramage
- Oral Sciences Research Group, Glasgow Dental School, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| | - Christopher Delaney
- Oral Sciences Research Group, Glasgow Dental School, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life SciencesUniversity of GlasgowGlasgowUK
| |
Collapse
|
15
|
Korona-Glowniak I, Skawinska-Bednarczyk A, Wrobel R, Pietrak J, Tkacz-Ciebiera I, Maslanko-Switala M, Krawczyk D, Bakiera A, Borek A, Malm A, Mielnik-Blaszczak M. Streptococcus sobrinus as a Predominant Oral Bacteria Related to the Occurrence of Dental Caries in Polish Children at 12 Years Old. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192215005. [PMID: 36429724 PMCID: PMC9690266 DOI: 10.3390/ijerph192215005] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/07/2022] [Accepted: 11/10/2022] [Indexed: 05/31/2023]
Abstract
Dental caries is listed by the WHO as one of the major non-communicable diseases that need to be prevented and treated. The aim of the study was to evaluate the prevalence and severity of caries expressed as the Decayed, Missing and Filled Permanent Teeth (DMFT) index in 12-year-old Polish children and to verify bacterial species related to the occurrence of dental caries. Quantitative real-time PCR analysis of DNA isolated from saliva samples was performed to detect 8 cariogenic and periopathogenic bacterial strains. A total of 118 Polish children were enrolled in the study. They had low mean DMFT scores of 1.58 ± 1.98. The prevalence of dental caries in the children tested was low (53.4%), with a tendency to decrease compared to previous oral surveys. Bacterial abundance of other species in the dental caries and caries-free groups did not differ; however, periopathogenic Prevotella pallens, Fusobacterium nucleatum along with cariogenic Streptococcus mutans and Lactobacillus fermentum were significantly strongly correlated in the caries-active subjects. The prevalence of S. sobrinus was significantly higher in children with dental caries (p = 0.023) and correlated with higher DMFT. It may temporarily play an important role in the initiation of the cariogenic process or in its enhancement due to an ecological imbalance in dental microbiota.
Collapse
Affiliation(s)
- Izabela Korona-Glowniak
- Department of Pharmaceutical Microbiology, Medical University of Lublin, 20-093 Lublin, Poland
| | | | - Rafal Wrobel
- Department of Paediatric Dentistry, Medical University of Lublin, 20-093 Lublin, Poland
| | - Justyna Pietrak
- Department of Paediatric Dentistry, Medical University of Lublin, 20-093 Lublin, Poland
| | | | | | - Dorota Krawczyk
- Department of Paediatric Dentistry, Medical University of Lublin, 20-093 Lublin, Poland
| | - Adrian Bakiera
- Department of Pharmaceutical Microbiology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Anna Borek
- Department of Pharmaceutical Microbiology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Anna Malm
- Department of Pharmaceutical Microbiology, Medical University of Lublin, 20-093 Lublin, Poland
| | | |
Collapse
|
16
|
Könönen E, Fteita D, Gursoy UK, Gursoy M. Prevotella species as oral residents and infectious agents with potential impact on systemic conditions. J Oral Microbiol 2022; 14:2079814. [PMID: 36393976 PMCID: PMC9662046 DOI: 10.1080/20002297.2022.2079814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/25/2022] [Accepted: 05/13/2022] [Indexed: 10/18/2022] Open
Abstract
Oral Prevotella are known as anaerobic commensals on oral mucosae and in dental plaques from early life onwards, including pigmented P. melaninogenica, P. nigrescens, and P. pallens and non-pigmented Prevotella species. Many Prevotella species contribute to oral inflammatory processes, being frequent findings in dysbiotic biofilms of periodontal diseases (P. intermedia, P. nigrescens), cariotic lesions (P. denticola, Alloprevotella (formerly Prevotella) tannerae), endodontic infections (P. baroniae, P. oris, P. multisaccharivorax), and other clinically relevant oral conditions. Over the years, several novel species have been recovered from the oral cavity without knowledge of their clinical relevance. Within this wide genus, virulence properties and other characteristics like biofilm formation seemingly vary in a species- and strain-dependent manner, as shown for the P. intermedia group organisms (P. aurantiaca, P. intermedia, P. nigrescens, and P. pallens). Oral Prevotella species are identified in various non-oral infections and chronic pathological conditions. Here, we have updated the knowledge of the genus Prevotella and the role of Prevotella species as residents and infectious agents of the oral cavity, as well as their detection in non-oral infections, but also gathered information on their potential link to cancers of the head and neck, and other systemic disorders.
Collapse
Affiliation(s)
- Eija Könönen
- Institute of Dentistry, University of Turku, Turku, Finland
| | - Dareen Fteita
- Institute of Dentistry, University of Turku, Turku, Finland
| | - Ulvi K. Gursoy
- Institute of Dentistry, University of Turku, Turku, Finland
| | - Mervi Gursoy
- Institute of Dentistry, University of Turku, Turku, Finland
| |
Collapse
|
17
|
Zhang Y, Fang J, Yang J, Gao X, Dong L, Zheng X, Sun L, Xia B, Zhao N, Ma Z, Wang Y. Streptococcus mutans-associated bacteria in dental plaque of severe early childhood caries. J Oral Microbiol 2022; 14:2046309. [PMID: 35251525 PMCID: PMC8896182 DOI: 10.1080/20002297.2022.2046309] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Background Streptococcus mutans (S. mutans) is a potential pathogenic bacteria of dental caries. However, the level of S. mutans is low in some children with severe early childhood caries (SECC) Aim To evaluate the effect of S. mutans level on dental microbiome and cariogenesis. Methods The oral microbiota was compared between caries-free group (CF) and SECC group.16S rRNA gene sequencing was used for S. mutans level bacterial community analysis. The candidate bacteria that were closely related with S. mutans abundance were identified and confirmed by absolute quantitative real-time PCR in clinical dental plaque samples from CF and SECC groups. Results Through in-depth analysis of dental plaque microorganism, Leptotrichia, Selenomonas and Prevotella_7 were found in the S. mutans-low group (p < 0.05) and Porphyromonas, Selenomonas_3 were found in the S. mutans-high group (p < 0.05). Through quantitative real-time PCR, Leptotrichia, Selenomonas and Prevotella_7 were identified as the potential biomarkers of SECC when S. mutans was at a low level. Conclusion Leptotrichia, Selenomonas and Prevotella_7 are identified as potential biomarkers in SECC with a low abundance or without S. mutans. Our study may shed light on the understanding of caries occurrence in SECC with low abundance of S. mutans. Abbreviations S. mutans, Streptococcus mutans; CF, caries-free; SECC, severe early childhood caries; ECC, early childhood caries; rRNA, ribosome RNA; qPCR, Quantitative real-time PCR; OTUs, operational taxonomic units; ANOVA, analysis of variance; LDA, Linear discriminant analysis; LEfSe, Linear discriminant analysis effect size; COG, Groups of proteins; NMDS, Non-MetricMulti-Dimensional Scaling; IL-1β, interleukin −1β; IL-6, interleukin-6; IL-8, interleukin-8; IL-10, interleukin-10.
Collapse
Affiliation(s)
- Yixin Zhang
- Central Laboratory Peking University School and Hospital of Stomatology, Beijing, China
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
- Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Jiakun Fang
- Office of Operations Management, Peking University School and Hospital of Stomatology, Beijing, China
| | - Jingyi Yang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Xiaolei Gao
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Liying Dong
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Xuan Zheng
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Liangjie Sun
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing, China
| | - Bin Xia
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China
| | - Na Zhao
- Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts, USA
- Shanghai Stomatological Hospital, Fudan University, Shanghai, China
| | - Zeyun Ma
- Department of VIP Service, Peking University School and Hospital of Stomatology, Beijing, China
| | - Yixiang Wang
- Central Laboratory Peking University School and Hospital of Stomatology, Beijing, China
| |
Collapse
|
18
|
Fakhruddin KS, Samaranayake LP, Hamoudi RA, Ngo HC, Egusa H. Diversity of site-specific microbes of occlusal and proximal lesions in severe- early childhood caries (S-ECC). J Oral Microbiol 2022; 14:2037832. [PMID: 35173909 PMCID: PMC8843124 DOI: 10.1080/20002297.2022.2037832] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/31/2022] [Accepted: 02/01/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Severe-early childhood caries (S-ECC) a global problem of significant concern, commonly manifest on the occlusal, and proximal surfaces of affected teeth. Despite the major ecological differences between these two niches the compositional differences, if any, in the microbiota of such lesions is unknown. METHODS Deep-dentine caries samples from asymptomatic primary molars of children with S-ECC (n 19) belonging to caries-code 5/6, (ICDAS classification) were evaluated. Employing two primer pools, we amplified and compared the bacterial 16S rRNA gene sequences of the seven hypervariable regions (V2-V4 and V6-V9) using NGS-based assay. RESULTS Bray-Curtisevaluation indicated that occlusal lesions (OL) had a more homogeneous community than the proximal lesions (PL) with significant compositional differences at the species level (p = 0.01; R- 0.513). Together, the occlusal and proximal niches harbored 263 species, of which 202 (76.8%) species were common to both , while 49 (18.6%) and 12 (4.6%) disparate species were exclusively isolated from the proximal and occlusal niches, respectively. The most commonl genera at both niches included Streptococcus, Prevotella, and Lactobacillus. S. mutans was predominant in PL (p ≤ 0.05), and Atopobium parvulum (p = 0.01) was predominant in OL. CONCLUSIONS Distinct differences exist between the caries microbiota of occlusal and proximal caries in S-ECC.
Collapse
Affiliation(s)
- Kausar Sadia Fakhruddin
- Department of Preventive and Restorative Dentistry, University of Sharjah, Sharjah, UAE
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai-city, Japan
| | | | - Rifat Akram Hamoudi
- Sharjah Institute for Medical Research, College of Medicine, University of Sharjah, Sharjah, UAE
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Hien Chi Ngo
- Uwa Dental School, The University of Western Australia, Perth, Australia
| | - Hiroshi Egusa
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai-city, Japan
| |
Collapse
|
19
|
Abstract
Numerous studies have examined the composition of and factors shaping the oral bacterial microbiota in healthy adults; however, similar studies on the less dominant yet ecologically and clinically important fungal microbiota are scarce. In this study, we characterized simultaneously the oral bacterial and fungal microbiomes in a large cohort of systemically healthy Chinese adults by sequencing the bacterial 16S rRNA gene and fungal internal transcribed spacer. We showed that different factors shaped the oral bacterial and fungal microbiomes in healthy adults. Sex and age were associated with the alpha diversity of the healthy oral bacterial microbiome but not that of the fungal microbiome. Age was also a major factor affecting the beta diversity of the oral bacterial microbiome; however, it only exerted a small effect on the oral fungal microbiome when compared with other variables. After controlling for age and sex, the bacterial microbiota structure was most affected by marital status, recent oral conditions and oral hygiene-related factors, whereas the fungal microbiota structure was most affected by education level, fruits and vegetables, and bleeding gums. Bacterial-fungal interactions were limited in the healthy oral microbiota, with the strongest association existing between Pseudomonas sp. and Rhodotorula dairenensis. Several bacterial amplicon sequence variants (ASVs) belonging to Veillonella atypica and the genera Leptotrichia, Streptococcus and Prevotella_7 and fungal ASVs belonging to Candida albicans and the genus Blumeria were revealed as putative pivotal members of the healthy oral microbiota. Overall, our study has facilitated understanding of the determining factors and cross-kingdom interactions of the healthy human oral microbiome. IMPORTANCE Numerous studies have examined the bacterial community residing in our oral cavity; however, information on the less dominant yet ecologically and clinically important fungal members is limited. In this study, we characterized simultaneously the oral bacterial and fungal microbial communities in a large cohort of healthy Chinese adults, examined their associations with an array of host factors, and explored potential interactions between the two microbial groups. We showed that different factors shape the diversity and structure of the oral bacterial and fungal microbial communities in healthy adults, with, for instance, sex and age only associated with the diversity of the bacterial community but not that of the fungal community. Besides, we found that bacterial-fungal interactions are limited in the healthy oral cavity. Overall, our study has facilitated understanding of the determining factors and bacterial-fungal interactions of the healthy human oral microbial community.
Collapse
|
20
|
Havsed K, Stensson M, Jansson H, Carda-Diéguez M, Pedersen A, Neilands J, Svensäter G, Mira A. Bacterial Composition and Metabolomics of Dental Plaque From Adolescents. Front Cell Infect Microbiol 2021; 11:716493. [PMID: 34395316 PMCID: PMC8362896 DOI: 10.3389/fcimb.2021.716493] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/12/2021] [Indexed: 01/04/2023] Open
Abstract
Supragingival dental plaque samples were collected from 40 Swedish adolescents, including 20 with caries lesions (CAR) and 20 caries-free (CF). Fresh plaque samples were subjected to an ex vivo acid tolerance (AT) test where the proportion of bacteria resistant to an acid shock was evaluated through confocal microscopy and live/dead staining, and the metabolites produced were quantified by 1H Nuclear Magnetic Resonance (1H NMR). In addition, DNA was extracted and the 16S rRNA gene was sequenced by Illumina sequencing, in order to characterize bacterial composition in the same samples. There were no significant differences in AT scores between CAR and CF individuals. However, 7 out of the 10 individuals with highest AT scores belonged to the CAR group. Regarding bacterial composition, Abiotrophia, Prevotella and Veillonella were found at significantly higher levels in CAR individuals (p=0.0085, 0.026 and 0.04 respectively) and Rothia and Corynebacterium at significantly higher levels in CF individuals (p=0.026 and 0.003). The caries pathogen Streptococcus mutans was found at low frequencies and was absent in 60% of CAR individuals. Random-forest predictive models indicate that at least 4 bacterial species or 9 genera are needed to distinguish CAR from CF adolescents. The metabolomic profile obtained by NMR showed a significant clustering of organic acids with specific bacteria in CAR and/or high AT individuals, being Scardovia wiggsiae the species with strongest associations. A significant clustering of ethanol and isopropanol with health-associated bacteria such as Rothia or Corynebacterium was also found. Accordingly, several relationships involving these compounds like the Ethanol : Lactate or Succinate : Lactate ratios were significantly associated to acid tolerance and could be of predictive value for caries risk. We therefore propose that future caries risk studies would benefit from considering not only the use of multiple organisms as potential microbial biomarkers, but also their functional adaptation and metabolic output.
Collapse
Affiliation(s)
- Kristian Havsed
- Department of Pediatric Dentistry, Institute for Postgraduate Dental Education, Jönköping, Sweden.,Centre for Oral Health, School of Health and Welfare, Jönköping University, Jönköping, Sweden.,Section for Oral Biology and Pathology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Malin Stensson
- Centre for Oral Health, School of Health and Welfare, Jönköping University, Jönköping, Sweden.,Folktandvården Skåne, The Swedish Dental Service of Skåne, Lund, Sweden
| | - Henrik Jansson
- Centre for Oral Health, School of Health and Welfare, Jönköping University, Jönköping, Sweden.,Folktandvården Skåne, The Swedish Dental Service of Skåne, Lund, Sweden.,Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Miguel Carda-Diéguez
- Department of Health & Genomics, Foundation for the Promotion of Health and Biomedical Research (FISABIO) Foundation, Valencia, Spain
| | - Anders Pedersen
- Swedish NMR Centre, The University of Gothenburg, Gothenburg, Sweden
| | - Jessica Neilands
- Section for Oral Biology and Pathology, Faculty of Odontology, Malmö University, Malmö, Sweden.,Biofilms - Research Center for Biointerfaces, Malmö University, Malmö, Sweden
| | - Gunnel Svensäter
- Section for Oral Biology and Pathology, Faculty of Odontology, Malmö University, Malmö, Sweden.,Biofilms - Research Center for Biointerfaces, Malmö University, Malmö, Sweden
| | - Alex Mira
- Centre for Oral Health, School of Health and Welfare, Jönköping University, Jönköping, Sweden.,Department of Health & Genomics, Foundation for the Promotion of Health and Biomedical Research (FISABIO) Foundation, Valencia, Spain
| |
Collapse
|
21
|
Ruff RR, Paul B, Sierra MA, Xu F, Li X, Crystal YO, Saxena D. Predicting Treatment Nonresponse in Hispanic/Latino Children Receiving Silver Diamine Fluoride for Caries Arrest: A Pilot Study Using Machine Learning. FRONTIERS IN ORAL HEALTH 2021; 2:695759. [PMID: 35048036 PMCID: PMC8757842 DOI: 10.3389/froh.2021.695759] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/25/2021] [Indexed: 11/13/2022] Open
Abstract
Objectives: Silver diamine fluoride (SDF) is a nonsurgical therapy for the arrest and prevention of dental caries with demonstrated clinical efficacy. Approximately 20% of children receiving SDF fail to respond to treatment. The objective of this study was to develop a predictive model of treatment non-response using machine learning. Methods: An observational pilot study (N = 20) consisting of children with and without active decay and who did and did not respond to silver diamine fluoride provided salivary samples and plaque from infected and contralateral sites. 16S rRNA genes from samples were amplified and sequenced on an Illumina Miseq and analyzed using QIIME. The association between operational taxonomic units and treatment non-response was assessed using lasso regression and artificial neural networks. Results: Bivariate group comparisons of bacterial abundance indicate a number of genera were significantly different between non-responders and those who responded to SDF therapy. No differences were found between non-responders and caries-active subjects. Prevotella pallens and Veillonella denticariosi were retained in full lasso models and combined with clinical variables in a six-input multilayer perceptron. Discussion: The acidogenic and acid-tolerant nature of retained bacterial species may overcome the antimicrobial effects of SDF. Further research to validate the model in larger external samples is needed.
Collapse
Affiliation(s)
- Ryan Richard Ruff
- Department of Epidemiology and Health Promotion, New York University College of Dentistry, New York, NY, United States
| | - Bidisha Paul
- Department of Molecular Pathobiology, New York, NY, United States
| | - Maria A. Sierra
- Department of Molecular Pathobiology, New York, NY, United States
| | - Fangxi Xu
- Department of Molecular Pathobiology, New York, NY, United States
| | - Xin Li
- Department of Molecular Pathobiology, New York, NY, United States
| | - Yasmi O. Crystal
- Department of Epidemiology and Health Promotion, New York University College of Dentistry, New York, NY, United States
| | - Deepak Saxena
- Department of Molecular Pathobiology, New York, NY, United States
| |
Collapse
|
22
|
Corrêa LB, Basso MB, Sousa-Pinto B, Coelho Leal S. Oral health effects of botulinum toxin treatment for drooling: a systematic review. Med Oral Patol Oral Cir Bucal 2021; 26:e172-e180. [PMID: 33340083 PMCID: PMC7980293 DOI: 10.4317/medoral.24101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 11/30/2020] [Indexed: 11/19/2022] Open
Abstract
Background Drooling is a major morbidity in several neurological diseases. Intraglandular botulinum neurotoxin (BoNT) injections have been used to manage this condition. However, by decreasing salivary flow, BoNT injections may result in an increased risk of caries and other oral adverse effects. In this study, we aimed to assess whether, in patients with drooling, intraglandular BoNT injections are associated with increased dental caries development, modifications on salivary composition (oral pH, buffering capacity and osmolality) and cariogenic bacterial load.
Material and Methods We performed a systematic review, searching PubMed, CENTRAL, Web of Science, and Scopus for all experimental and observational studies reporting on adverse effects of intraglandular BoNT injections in patients with drooling. Primary study selection, quality assessment, and data extraction were independently performed by two researchers. No studies were excluded based on their language, publication status or date of publication. Studies’ quality was based on revised Cochrane Risk of Bias tools. Meta-analysis was not performed.
Results We retrieved 1025 studies, of which 5 were included. Two studies were two randomized controlled trials and three quasi-experimental studies. None of the included studies found BoNT injections to be associated with dental caries development or with significant reductions in oral pH. One of the included primary studies even observed an increase in salivary buffer capacity. One study found an increase in Lactobacilli counts. As for the risk of bias, two studies were classified as having a critical risk, two as high risk and one as having some concerns.
Conclusions Currently, there is no evidence that, in patients with drooling, BoNT injections associate with increased risk of dental caries or disturbances in oral pH or salivary buffering capacity. However, the included primary studies had important limitations and differences in their methodologies. Key words:Neurological diseases, drooling, sialorrhea, botulinum toxin, oral health, caries, saliva.
Collapse
Affiliation(s)
- L-B Corrêa
- MEDCIDS - Department of Community Medicine Information and Decision Sciences Faculty of Medicine, University of Porto Rua Dr. Plácido da Costa, 4200-450, Porto, Portugal
| | | | | | | |
Collapse
|
23
|
Xiong K, Chen X, Zhu H, Ji M, Zou L. Anticaries activity of GERM CLEAN in Streptococcus mutans and Candida albicans dual-species biofilm. Oral Dis 2021; 28:829-839. [PMID: 33583105 DOI: 10.1111/odi.13799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/28/2020] [Accepted: 02/01/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To evaluate the antimicrobial effects of a peptide containing novel oral spray GERM CLEAN on dual-species biofilm formed by Streptococcus mutans and Candida albicans and to investigate whether GERM CLEAN inhibits the demineralization procedure of bovine enamel in vitro. METHODS The antimicrobial effects of GERM CLEAN on dual-species biofilm were analyzed by initial adherence rate calculation, water-insoluble exopolysaccharides quantification, total biomass quantification, and colony-forming units (CFUs) counting. Scanning electron microscopy and confocal laser scanning microscopy were applied to evaluate the impacts of GERM CLEAN on the biofilm structure. Further, the effects of GERM CLEAN on acidogenicity of dual-species were appraised via glycolytic pH drop analysis and hydroxyapatite dissolution measurement. The percentage of Surface Microhardness Reduction (%SMHR) evaluation, Atomic Force Micrograph (AFM) examination, and Transverse Microradiography (TMR) analysis after pH cycling were used to determine whether GERM CLEAN inhibited the demineralization of bovine enamel. RESULTS GERM CLEAN decreased the adherence rate, water-insoluble EPS production, biofilm formation, and acidogenicity of the dual-species. Moreover, GERM CLEAN significantly inhibited the demineralization status of bovine enamels. CONCLUSION This peptide containing novel oral spray GERM CLEAN has antimicrobial potential toward the dual-species. GERM CLEAN can also impede the demineralization procedure of enamel.
Collapse
Affiliation(s)
- Kaixin Xiong
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Xuan Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Hualing Zhu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Mengzhen Ji
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Ling Zou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Conservation Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| |
Collapse
|
24
|
Akram Z, Aati S, Ngo H, Fawzy A. pH-dependent delivery of chlorhexidine from PGA grafted mesoporous silica nanoparticles at resin-dentin interface. J Nanobiotechnology 2021; 19:43. [PMID: 33563280 PMCID: PMC7871398 DOI: 10.1186/s12951-021-00788-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 02/01/2021] [Indexed: 12/19/2022] Open
Abstract
Background A low pH environment is created due to the production of acids by oral biofilms that further leads to the dissolution of hydroxyapatite crystal in the tooth structure significantly altering the equilibrium. Although the overall bacterial counts may not be eradicated from the oral cavity, however, synthesis of engineered anti-bacterial materials are warranted to reduce the pathogenic impact of the oral biofilms. The purpose of this study was to synthesize and characterize chlorhexidine (CHX)-loaded mesoporous silica nanoparticles (MSN) grafted with poly-L-glycolic acid (PGA) and to test the in vitro drug release in various pH environments, cytotoxicity, and antimicrobial capacity. In addition, this study aimed to investigate the delivery of CHX-loaded/MSN-PGA nanoparticles through demineralized dentin tubules and how these nanoparticles interact with tooth dentin after mixing with commercial dentin adhesive for potential clinical application. Results Characterization using SEM/TEM and EDX confirmed the synthesis of CHX-loaded/MSN-PGA. An increase in the percentage of drug encapsulation efficiency from 81 to 85% in CHX loaded/MSN and 92–95% in CHX loaded/MSN-PGA proportionately increased with increasing the amount of CHX during the fabrication of nanoparticles. For both time-periods (24 h or 30 days), the relative microbial viability significantly decreased by increasing the CHX content (P < 0.001). Generally, the cell viability percentage of DPSCs exposed to MSN-PGA/Blank, CHX-loaded/MSN, and CHX-loaded/MSN-PGA, respectively was > 80% indicating low cytotoxicity profiles of experimental nanoparticles. After 9 months in artificial saliva (pH 7.4), the significantly highest micro-tensile bond strength value was recorded for 25:50 CHX/MSN and 25:50:50 CHX/MSN-PGA. A homogenous and widely distributed 50:50:50 CHX-loaded/MSN-PGA nanoparticles exhibited excellent bonding with the application of commercially available dentin adhesive. Conclusions A pH-sensitive CHX release response was noted when loaded in MSN grafted PGA nanoparticles. The formulated drug-loaded nanocarrier demonstrated excellent physicochemical, spectral, and biological characteristics. Showing considerable capacity to penetrate effectively inside dentinal tubules and having high antibacterial efficacy, this system could be potentially used in adhesive and restorative dentistry.![]()
Collapse
Affiliation(s)
- Zohaib Akram
- UWA Dental School, University of Western Australia, 17 Monash Avenue, Nedlands, WA, 6009, Australia
| | - Sultan Aati
- UWA Dental School, University of Western Australia, 17 Monash Avenue, Nedlands, WA, 6009, Australia
| | - Hein Ngo
- UWA Dental School, University of Western Australia, 17 Monash Avenue, Nedlands, WA, 6009, Australia
| | - Amr Fawzy
- UWA Dental School, University of Western Australia, 17 Monash Avenue, Nedlands, WA, 6009, Australia.
| |
Collapse
|
25
|
Chumponsuk T, Gruneck L, Gentekaki E, Jitprasertwong P, Kullawong N, Nakayama J, Popluechai S. The salivary microbiota of Thai adults with metabolic disorders and association with diet. Arch Oral Biol 2021; 122:105036. [PMID: 33421657 DOI: 10.1016/j.archoralbio.2020.105036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/24/2020] [Accepted: 12/26/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE This study aimed to investigate abundance of specific bacterial taxa in the saliva of 105 Thai adults with different BMI (lean, overweight, and obese) and T2DM subjects using qPCR targeting the 16S rRNA gene of various bacteria taxa. DESIGN We employed qPCR targeting 16S rRNA genes to explore the bacterial profiles and abundances in the saliva of Thai adult subjects with different BMI and T2DM. Multivariate statistical analyses (multiple factor analysis (MFA) and sparse Partial Least Squares Discriminant Analysis (sPLS-DA) were performed to assess the associations of salivary bacteria with diet, blood profile, gender, age, and use of antibiotics. RESULTS We found that abundance profiles of the examined salivary bacteria were similar across the four groups. When diet, blood profile, and gender, age, and use of antibiotics were considered, significant differences were noted between subgroups. A positive correlation was also found between consumption of carbonate soft drinks and Bacteroidetes, Gamma-proteobacteria, Veillonella, Fusobacterium and Fusobacterium nucleatum. CONCLUSIONS This is the first study demonstrating the relative abundance of salivary bacteria in adult Thai subjects with different levels of BMI and T2DM. Regardless of the similar pattern of bacterial profiles across groups, sPLS-DA analysis highlighted the influence of host variables (gender, age, and use of antibiotics) on the abundance of salivary microbiota. Our findings pave the way for further hypothesis testing to gain insight into the association between host factors and salivary microbiome.
Collapse
Affiliation(s)
| | - Lucsame Gruneck
- Gut Microbiome Research Group, Mae Fah Luang University, Muang, Chiang Rai, Thailand
| | - Eleni Gentekaki
- School of Science, Mae Fah Luang University, Muang, Chiang Rai, Thailand; Gut Microbiome Research Group, Mae Fah Luang University, Muang, Chiang Rai, Thailand
| | - Paiboon Jitprasertwong
- School of Geriatric Oral Health, Institute of Dentistry, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Niwed Kullawong
- School of Health Science, Mae Fah Luang University, Muang, Chiang Rai, Thailand
| | - Jiro Nakayama
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Siam Popluechai
- School of Science, Mae Fah Luang University, Muang, Chiang Rai, Thailand; Gut Microbiome Research Group, Mae Fah Luang University, Muang, Chiang Rai, Thailand.
| |
Collapse
|
26
|
Comparison of DNA Extracted from Pediatric Saliva, Gingival Crevicular Fluid and Site-Specific Biofilm Samples. Methods Protoc 2020; 3:mps3030048. [PMID: 32660039 PMCID: PMC7565886 DOI: 10.3390/mps3030048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/04/2020] [Accepted: 07/07/2020] [Indexed: 02/07/2023] Open
Abstract
(1) Introduction: Due to the non-invasive nature of saliva, many methods have been used to isolate and collect DNA from saliva samples for microbial screening. Many oral microbes also inhabit the oral biofilm, which may represent significantly different microbial constituents that may contribute to oral health and disease, including caries and periodontal disorders. Moreover, the biofilm may vary within the same patient at different sites. Few studies have evaluated the comparison between DNA isolated from saliva and DNA from site-specific biofilm, with virtually no studies addressing this analysis among pediatric patients. (2) Methods: An existing repository of paper point derived biofilm, gingival crevicular fluid (GCF), and unstimulated saliva samples previously collected from pediatric patients (n = 47) was identified. DNA was isolated from biofilm sites (tongue, upper buccal molar, mandibular lingual incisor), and GCF and saliva were used for quantitative DNA comparison using a phenol:chloroform extraction. A quantitative and qualitative analysis was performed using the NanoDrop 2000 spectrophotometer using absorbance readings at A230 nm, A260 nm and A280 nm. (3) Results: These data demonstrated the successful isolation of DNA from all of the patient samples, with the highest concentrations observed among unstimulated saliva (4264.1 ng/μL) and the lowest derived from GCF (1771.5 ng/μL). No differences were observed between males and females or minorities and non-minority patients. In addition, comparison of the overall concentrations of DNA obtained from adult samples was slightly higher than, but not significantly different from, the concentrations obtained from pediatric samples (p = 0.2827). A real-time quantitative qPCR screening revealed that all of the samples evaluated harbored bacterial and human DNA of sufficient quantity and quality for a molecular screening greater than the limit of detection (ΔRn = 0.01). (4) Conclusions: Many methods are currently available to provide the sampling and screening of saliva and specific sites within the oral cavity, but the validation and comparison of simple and low-cost methods, that include paper point sampling and unstimulated saliva collection, may suggest these methods and protocols provide sufficient DNA quality and quantity for molecular screening and other comparison applications. In addition, although heterogeneity will be a constant and consistent feature between patient samples, standardized methods that provide similar and consistent DNA from various oral sites may provide needed consistency for screening and molecular analysis.
Collapse
|
27
|
Indiani CMDSP, Rizzardi KF, Crescente CL, Steiner-Oliveira C, Nobre-Dos-Santos M, Parisotto TM. Relationship Between Mutans Streptococci and Lactobacilli in the Oral Cavity and Intestine of Obese and Eutrophic Children With Early Childhood Caries-Preliminary Findings of a Cross-Sectional Study. Front Pediatr 2020; 8:588965. [PMID: 33363062 PMCID: PMC7759472 DOI: 10.3389/fped.2020.588965] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/05/2020] [Indexed: 12/12/2022] Open
Abstract
This brief communication assessed whether there was any relationship between the counts of lactobacilli (LB) and mutans streptococci (MS) in the oral cavity and intestine of obese and eutrophic children with early childhood caries (ECC). Seventy-eight preschoolers were assigned into the following groups: 1. obese children with ECC (OECC), 2. eutrophic children with ECC (EECC), 3. obese caries-free children (OCF), and 4. eutrophic caries-free children (ECF). The diagnosis of obesity and ECC was based on the World Health Organization criteria. Dental plaque and fecal samples were collected to assess the counts of MS and LB using selective media. Data were evaluated by Poisson regression analysis, Wilcoxon test, and Sign test. Microbial indicators of ECC in obese children were MS counts in the intestine [rate ratio (RR): 4.38] and presence of LB in the oral cavity (RR: 2.12). The indicators in eutrophic children were MS levels and the presence of LB, both in the oral cavity (RR: 6.35/1.50) and intestine (RR: 2.35/2.38) (p < 0.05). The comparison between MS levels in the mouth and in the intestine revealed significant differences only in the ECF group (p = 0.04). Regarding LB presence in the mouth vs. in the intestine, except for the OCF group (p = 0.03), no other statistical differences were found. Our preliminary findings highlighted that the levels of MS and the presence of LB in the oral cavity, as well as in the lower gastrointestinal tract were associated with ECC. Moreover, obesity was found to influence this relationship.
Collapse
Affiliation(s)
| | - Karina Ferreira Rizzardi
- Laboratory of Clinical and Molecular Microbiology, University São Francisco - USF, Bragança Paulista, Brazil
| | - Camila Lopes Crescente
- Department of Pediatric Dentistry, Piracicaba Dental School, State University of Campinas - UNICAMP, Piracicaba, Brazil
| | - Carolina Steiner-Oliveira
- Department of Pediatric Dentistry, Piracicaba Dental School, State University of Campinas - UNICAMP, Piracicaba, Brazil
| | - Marinês Nobre-Dos-Santos
- Department of Pediatric Dentistry, Piracicaba Dental School, State University of Campinas - UNICAMP, Piracicaba, Brazil
| | - Thaís Manzano Parisotto
- Laboratory of Clinical and Molecular Microbiology, University São Francisco - USF, Bragança Paulista, Brazil
| |
Collapse
|