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Yan C, Nakajima M, Ikeda-Imafuku M, Yanagawa M, Hayatsu M, Fukuta T, Shibata S, Mitragotri S, Tabeta K. Choline and geranate ionic liquid for subgingival biofilm control. Int J Pharm 2024; 662:124544. [PMID: 39094920 DOI: 10.1016/j.ijpharm.2024.124544] [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: 05/06/2024] [Revised: 07/18/2024] [Accepted: 07/30/2024] [Indexed: 08/04/2024]
Abstract
Periodontitis is a chronic inflammatory disease that causes destruction of the periodontium and eventual tooth loss. The priority in the periodontal treatment is to remove the subgingival biofilm. Chemical removal of biofilms using antimicrobial agents has been applied in clinical practice. However, their clinical effect is still limited because the agents must overcome biofilm's significant drug tolerance, which is primarily caused by the extracellular matrix, a physical barrier that attenuates drug diffusion. This study aimed to study the use of ionic liquids (ILs), a new class of biocompatible materials, for controlling subgingival biofilms because of their excellent permeability. Choline and geranate (CAGE) IL was tested for its highly potent antiseptic behavior and permeability. Antibacterial tests revealed that the significant efficacy of CAGE against periodontopathic microorganisms was derived from their ability to destroy cell membrane, as demonstrated by membrane permeability assay and transmission electron microscopy imaging. Antibiofilm tests using two pathogenic biofilm models revealed that CAGE exerted efficacy against the biofilm-embedded bacteria, conspicuously neutralized the biofilms, and eventually destroyed the biofilm structure. Furthermore, the penetration of CAGE into the biofilm was visually confirmed using confocal laser scanning microscopy. This study highlighted the potential of CAGE as a powerful antibiofilm therapeutic.
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Affiliation(s)
- Chunyang Yan
- Division of Periodontology, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan
| | - Mayuka Nakajima
- Division of Periodontology, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan.
| | - Mayumi Ikeda-Imafuku
- Department of Physical Pharmaceutics, School of Pharmaceutical Sciences, Wakayama Medical University, Wakayama 640-8156, Japan
| | - Mayuko Yanagawa
- Division of Periodontology, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan
| | - Manabu Hayatsu
- Division of Microscopic Anatomy, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan
| | - Tatsuya Fukuta
- Department of Physical Pharmaceutics, School of Pharmaceutical Sciences, Wakayama Medical University, Wakayama 640-8156, Japan
| | - Shinsuke Shibata
- Division of Microscopic Anatomy, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan
| | - Samir Mitragotri
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, MA 02134, USA
| | - Koichi Tabeta
- Division of Periodontology, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan.
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2
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Jeon K, Andoy NMO, Dufour D, Yang JYC, Lévesque CM, Sullan RMA. Cocktail Approach with Polyserotonin Nanoparticles and Peptides for Treatment of Streptococcus mutans. ACS Infect Dis 2024. [PMID: 39158205 DOI: 10.1021/acsinfecdis.4c00107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2024]
Abstract
Dental plaque, formed by a Streptococcus mutans biofilm, is a major contributor to cavity formation. While antimicrobial strategies exist, the growing risk of antibiotic resistance necessitates alternative therapeutic solutions. Polyserotonin nanoparticles (PSeNPs), recently recognized for their photothermal property and promising biomedical applications, open up a new avenue for antimicrobial use. Here, we introduced a UV-initiated synthetic route for PSeNPs with improved yield. Using these PSeNPs, a cocktail treatment to reduce the viability of this cavity-causing bacteria was developed. This cocktail comprises an S. mutans-targeting antimicrobial peptide (GH12), an intraspecies competence-stimulating peptide that triggers altruistic cell death in S. mutans, and laser-activated heating of PSeNPs. The "peptide + PSeNP + laser" combination effectively inhibits S. mutans growth in both planktonic and biofilm states. Moreover, the cocktail approach remains effective in reducing the viability of S. mutans in a more virulent dual-species biofilm with Candida albicans. Overall, our results reinforce the utility of a multipronged therapeutic strategy to reduce cariogenic bacteria in the complex model oral biofilm.
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Affiliation(s)
- Keuna Jeon
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1065 Military Trail, Toronto, Ontario M1C 1A4, Canada
- Department of Chemistry, University of Toronto, 80 Street George Street, Toronto, Ontario M5S 3H6, Canada
| | - Nesha May O Andoy
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1065 Military Trail, Toronto, Ontario M1C 1A4, Canada
| | - Delphine Dufour
- Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, Ontario M5G 1G6, Canada
| | - Jessica Y C Yang
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1065 Military Trail, Toronto, Ontario M1C 1A4, Canada
| | - Céline M Lévesque
- Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, Ontario M5G 1G6, Canada
| | - Ruby May A Sullan
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1065 Military Trail, Toronto, Ontario M1C 1A4, Canada
- Department of Chemistry, University of Toronto, 80 Street George Street, Toronto, Ontario M5S 3H6, Canada
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3
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Nasu T, Maeda S. Escherichia coli persisters in biofilm can perform horizontal gene transfer by transformation. Biochem Biophys Res Commun 2024; 738:150549. [PMID: 39167960 DOI: 10.1016/j.bbrc.2024.150549] [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: 08/06/2024] [Accepted: 08/13/2024] [Indexed: 08/23/2024]
Abstract
Persisters represent a subset of cells that exhibit transient tolerance to antimicrobials. These persisters can withstand sudden exposure to antimicrobials, even as the majority of normal cells perish. In this study, we have demonstrated the capacity of ampicillin-tolerant and alkali-tolerant persisters to execute horizontal gene transfer via in situ transformation within biofilms. Air-solid biofilms, comprising two Escherichia coli populations each with a distinct plasmid, were formed on agar media. They were treated with lethal doses of ampicillin or NaOH for 24 h, followed by a 1-min glass-ball roll. This process led to a high frequency of horizontal plasmid transfer (10-7-10-6 per cell) from dead cells to surviving persisters within the biofilms. Plasmid transfer was DNase-sensitive and also occurred by adding purified plasmid DNA to plasmid-free biofilms, demonstrating a transformation mechanism. This marks the first evidence of persisters' novel ability for horizontal gene transfer, via transformation.
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Affiliation(s)
- Tsubasa Nasu
- Graduate School of Humanities and Sciences, Nara Women's University, 630-8506, Kitauoya-nishimachi, Nara, Japan
| | - Sumio Maeda
- Graduate School of Humanities and Sciences, Nara Women's University, 630-8506, Kitauoya-nishimachi, Nara, Japan.
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4
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Zanini LGK, Rubira-Bullen IRF, Nunes FDLDS. A Systematic Review on Caries Detection, Classification, and Segmentation from X-Ray Images: Methods, Datasets, Evaluation, and Open Opportunities. JOURNAL OF IMAGING INFORMATICS IN MEDICINE 2024; 37:1824-1845. [PMID: 38429559 PMCID: PMC11300762 DOI: 10.1007/s10278-024-01054-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/19/2023] [Accepted: 01/02/2024] [Indexed: 03/03/2024]
Abstract
Dental caries occurs from the interaction between oral bacteria and sugars, generating acids that damage teeth over time. The importance of X-ray images for detecting oral problems is undeniable in dentistry. With technological advances, it is feasible to identify these lesions using techniques such as deep learning, machine learning, and image processing. Therefore, the survey and systematization of these methods are essential to determining the main computational approaches for identifying caries in X-ray images. In this systematic review, we investigated the primary computational methods used for classifying, detecting, and segmenting caries in X-ray images. Following the PRISMA methodology, we selected relevant studies and analyzed their methods, strengths, limitations, imaging modalities, evaluation metrics, datasets, and classification techniques. The review encompassed 42 studies retrieved from the Science Direct, IEEExplore, ACM Digital, and PubMed databases from the Computer Science and Health areas. The results indicate that 12% of the included articles utilized public datasets, with deep learning being the predominant approach, accounting for 69% of the studies. The majority of these studies (76%) focused on classifying dental caries, either in binary or multiclass classification. Panoramic imaging was the most commonly used radiographic modality, representing 29% of the cases studied. Overall, our systematic review provides a comprehensive overview of the computational methods employed in identifying caries in radiographic images and highlights trends, patterns, and challenges in this research field.
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Affiliation(s)
- Luiz Guilherme Kasputis Zanini
- Department of Computer Engineering and Digital Systems, University of São Paulo, Av. Prof. Luciano Gualberto 158, São Paulo, 05508-010, São Paulo, Brazil.
| | | | - Fátima de Lourdes Dos Santos Nunes
- Department of Computer Engineering and Digital Systems, University of São Paulo, Av. Prof. Luciano Gualberto 158, São Paulo, 05508-010, São Paulo, Brazil
- School of Arts, Sciences and Humanities, University of São Paulo, Rua Arlindo Béttio, 1000, São Paulo, 03828-000, São Paulo, Brazil
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Li C, Gao D, Li C, Cheng G, Zhang L. Fighting against biofilm: The antifouling and antimicrobial material. Biointerphases 2024; 19:040802. [PMID: 39023091 DOI: 10.1116/6.0003695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 06/07/2024] [Indexed: 07/20/2024] Open
Abstract
Biofilms are groups of microorganisms protected by self-secreted extracellular substances. Biofilm formation on the surface of biomaterial or engineering materials becomes a severe challenge. It has caused significant health, environmental, and societal concerns. It is believed that biofilms lead to life-threatening infection, medical implant failure, foodborne disease, and marine biofouling. To address these issues, tremendous effort has been made to inhibit biofilm formation on materials. Biofilms are extremely difficult to treat once formed, so designing material and coating bearing functional groups that are capable of resisting biofilm formation has attracted increasing attention for the last two decades. Many types of antibiofilm strategies have been designed to target different stages of biofilm formation. Development of the antibiofilm material can be classified into antifouling material, antimicrobial material, fouling release material, and integrated antifouling/antimicrobial material. This review summarizes relevant research utilizing these four approaches and comments on their antibiofilm properties. The feature of each method was compared to reveal the research trend. Antibiofilm strategies in fundamental research and industrial applications were summarized.
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Affiliation(s)
- Chao Li
- School of Engineering, Westlake University, Hangzhou, Zhejiang 310030, China
- Department of Pharmaceutical Sciences, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116023, China
| | - Dongdong Gao
- School of Engineering, Westlake University, Hangzhou, Zhejiang 310030, China
- Department of Pharmaceutical Sciences, State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116023, China
| | - Chunmei Li
- Tsinglan School, Songshan Lake, Dongguan 523000, China
| | - Gang Cheng
- School of Engineering, Westlake University, Hangzhou, Zhejiang 310030, China
| | - Lijun Zhang
- Liaoning Provincial Key Laboratory of Cornea and Ocular Surface Diseases, Liaoning Provincial Optometry Technology Engineering Research Center, The Third People's Hospital of Dalian, Dalian, Liaoning 116033, China
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6
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Ahmad P, Hussain A, Siqueira WL. Mass spectrometry-based proteomic approaches for salivary protein biomarkers discovery and dental caries diagnosis: A critical review. MASS SPECTROMETRY REVIEWS 2024; 43:826-856. [PMID: 36444686 DOI: 10.1002/mas.21822] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Dental caries is a multifactorial chronic disease resulting from the intricate interplay among acid-generating bacteria, fermentable carbohydrates, and several host factors such as saliva. Saliva comprises several proteins which could be utilized as biomarkers for caries prevention, diagnosis, and prognosis. Mass spectrometry-based salivary proteomics approaches, owing to their sensitivity, provide the opportunity to investigate and unveil crucial cariogenic pathogen activity and host indicators and may demonstrate clinically relevant biomarkers to improve caries diagnosis and management. The present review outlines the published literature of human clinical proteomics investigations on caries and extensively elucidates frequently reported salivary proteins as biomarkers. This review also discusses important aspects while designing an experimental proteomics workflow. The protein-protein interactions and the clinical relevance of salivary proteins as biomarkers for caries, together with uninvestigated domains of the discipline are also discussed critically.
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Affiliation(s)
- Paras Ahmad
- College of Dentistry, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Ahmed Hussain
- College of Dentistry, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Walter L Siqueira
- College of Dentistry, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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Kim HE. Influence of Biofilm Maturity on the Antibacterial Efficacy of Cold Atmospheric Plasma in Oral Microcosm Biofilms. Biomedicines 2024; 12:1056. [PMID: 38791017 PMCID: PMC11118202 DOI: 10.3390/biomedicines12051056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 04/17/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
As biofilms mature, biomass and extracellular polysaccharide (EPS) content increases, enhancing pathogenicity. Therefore, this study aimed to evaluate the antibacterial efficacy of cold atmospheric plasma (CAP) against oral microcosm biofilms and the influence of biofilm maturity on treatment. Oral microcosm biofilms were cultured on hydroxyapatite disks for 2 and 6 days. Based on the treatment and biofilm maturity, these were subsequently allocated into six groups (N = 19 each): Groups 1 and 2 were incubated with distilled water for 1 min; Groups 3 and 4 were treated with CAP for 2 min, and Groups 5 and 6 were treated with 0.12% chlorhexidine gluconate for 1 min. Groups 1, 3, and 5 represent 2-day biofilms, and Groups 2, 4, and 6 represent 6-day biofilms. Treatments were repeated daily for 5 days. Antibacterial efficacy was analyzed by measuring oral biofilms' red fluorescence intensity (RatioR/G) and quantifying EPS content and bacterial viability. The RatioR/G was 1.089-fold and 1.104-fold higher in Groups 4 and 6 than in Groups 3 and 5 following antibacterial treatment, respectively (p < 0.001). EPS content increased by 1.71-fold in Group 6 than in Group 5 (p < 0.001). Bacterial survival rate was the lowest in Group 3 (p = 0.005). These findings underscore the relevance of CAP treatment in maintaining antibacterial efficacy regardless of the biofilm development stage, highlighting its potential utility in oral care.
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Affiliation(s)
- Hee-Eun Kim
- Department of Dental Hygiene, Gachon University College of Medical Science, Incheon 21936, Republic of Korea
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8
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Araujo TT, Dionizio A, Carvalho TS, Boas Feitosa CMV, Vertuan M, Câmara JVF, Henrique-Silva F, Marchetto R, Chiaratti MR, Santos AC, Alves LO, Ferro M, Buzalaf MAR. Acquired enamel pellicle and biofilm engineering with a combination of acid-resistant proteins (CaneCPI-5, StN15, and Hemoglobin) for enhanced protection against dental caries - in vivo and in vitro investigations. Clin Oral Investig 2024; 28:261. [PMID: 38642171 DOI: 10.1007/s00784-024-05651-0] [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: 01/08/2024] [Accepted: 04/02/2024] [Indexed: 04/22/2024]
Abstract
OBJECTIVE This study was designed in two-legs. In the in vivo, we explored the potential of a rinse solution containing a combination (Comb) of 0.1 mg/mL CaneCPI-5 (sugarcane-derive cystatin), 1.88 × 10- 5M StN15 (statherin-derived peptide) and 1.0 mg/mL hemoglobin (Hb) to change the protein profile of the acquired enamel pellicle(AEP) and the microbiome of the enamel biofilm. The in vitro, was designed to reveal the effects of Comb on the viability and bacterial composition of the microcosm biofilm, as well as on enamel demineralization. MATERIALS AND METHODS In vivo study, 10 participants rinsed (10mL,1 min) with either deionized water (H2O-control) or Comb. AEP and biofilm were collected after 2 and 3 h, respectively, after rinsing. AEP samples underwent proteomics analysis, while biofilm microbiome was assessed via 16 S-rRNA Next Generation Sequencing(NGS). In vitro study, a microcosm biofilm protocol was employed. Ninety-six enamel specimens were treated with: 1)Phosphate-Buffered Solution-PBS(negative-control), 2)0.12%Chlorhexidine, 3)500ppmNaF and 4)Comb. Resazurin, colony-forming-units(CFU) and Transversal Microradiography(TMR) were performed. RESULTS The proteomic results revealed higher quantity of proteins in the Comb compared to control associated with immune system response and oral microbial adhesion. Microbiome showed a significant increase in bacteria linked to a healthy microbiota, in the Comb group. In the in vitro study, Comb group was only efficient in reducing mineral-loss and lesion-depth compared to the PBS. CONCLUSIONS The AEP modification altered the subsequent layers, affecting the initial process of bacterial adhesion of pathogenic and commensal bacteria, as well as enamel demineralization. CLINICAL RELEVANCE Comb group shows promise in shaping oral health by potentially introducing innovative approaches to prevent enamel demineralization and deter tooth decay.
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Affiliation(s)
- Tamara Teodoro Araujo
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, São Paulo, Bauru, 17012- 901, Brazil
| | - Aline Dionizio
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, São Paulo, Bauru, 17012- 901, Brazil
| | - Thamyris Souza Carvalho
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, São Paulo, Bauru, 17012- 901, Brazil
| | - Chelsea Maria Vilas Boas Feitosa
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, São Paulo, Bauru, 17012- 901, Brazil
| | - Mariele Vertuan
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, São Paulo, Bauru, 17012- 901, Brazil
| | - João Victor Frazão Câmara
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, University Hospital, Saarland University, Building 73, 66421, Homburg, Saarland, Germany
| | - Flavio Henrique-Silva
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, 13565-905, Brazil
| | - Reinaldo Marchetto
- Department of Biochemistry and Organic Chemistry, Paulista State University (UNESP), Araraquara, 14800-900, Brazil
| | - Marcos Roberto Chiaratti
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, 13565-905, Brazil
| | - Angélica Camargo Santos
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, 13565-905, Brazil
| | - Lindomar Oliveira Alves
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, 13565-905, Brazil
| | - Milene Ferro
- Department of General and Applied Biology, Paulista State University (UNESP), Rio Claro, 13500230, Brazil
| | - Marília Afonso Rabelo Buzalaf
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, São Paulo, Bauru, 17012- 901, Brazil.
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Pourhajibagher M, Bahrami R, Bahador A. Application of antimicrobial sonodynamic therapy as a potential treatment modality in dentistry: A literature review. J Dent Sci 2024; 19:787-794. [PMID: 38618114 PMCID: PMC11010677 DOI: 10.1016/j.jds.2023.11.006] [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: 11/06/2023] [Revised: 11/16/2023] [Indexed: 04/16/2024] Open
Abstract
The accumulation of dental plaque is a precursor to various dental infections, including lesions, inflammation around dental implants, and inflammation under dentures. Traditional cleaning methods involving physical removal and chemical agents often fall short of eliminating bacteria and their protective biofilms. These methods can also inadvertently lead to bacteria that resist drugs and upset the mouth's microbial harmony. To counter these issues, a new approach is needed that can target and clear away dental plaque, minimize biofilms and bacteria, and thus support sustained dental health. Enter antimicrobial sonodynamic therapy (aSDT), a supplementary treatment that uses gentle ultrasound waves to trigger a sonosensitizer compound, destroying bacterial cells. This process works by generating heat, mechanical pressure, initiating chemical reactions, and producing reactive oxygen species (ROS), offering a fresh tactic for managing dental plaque and biofilms. The study reviews how aSDT could serve as an innovative dental treatment option to enhance oral health.
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Affiliation(s)
- Maryam Pourhajibagher
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Rashin Bahrami
- Dental Sciences Research Center, Department of Orthodontics, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
| | - Abbas Bahador
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Pourhajibagher M, Bahrami R, Bahador A. Application of photosensitive dental materials as a novel antimicrobial option in dentistry: A literature review. J Dent Sci 2024; 19:762-772. [PMID: 38618073 PMCID: PMC11010690 DOI: 10.1016/j.jds.2023.12.019] [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: 12/05/2023] [Revised: 12/23/2023] [Indexed: 04/16/2024] Open
Abstract
The formation of dental plaque is well-known for its role in causing various oral infections, such as tooth decay, inflammation of the dental pulp, gum disease, and infections of the oral mucosa like peri-implantitis and denture stomatitis. These infections primarily affect the local area of the mouth, but if not treated, they can potentially lead to life-threatening conditions. Traditional methods of mechanical and chemical antimicrobial treatment have limitations in fully eliminating microorganisms and preventing the formation of biofilms. Additionally, these methods can contribute to the development of drug-resistant microorganisms and disrupt the natural balance of oral bacteria. Antimicrobial photodynamic therapy (aPDT) is a technique that utilizes low-power lasers with specific wavelengths in combination with a photosensitizing agent called photosensitizer to kill microorganisms. By inducing damage through reactive oxygen species (ROS), aPDT offers a new approach to addressing dental plaque and associated microbial biofilms, aiming to improve oral health outcomes. Recently, photosensitizers have been incorporated into dental materials to create photosensitive dental materials. This article aimed to review the use of photosensitive dental materials for aPDT as an innovative antimicrobial option in dentistry, with the goal of enhancing oral health.
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Affiliation(s)
- Maryam Pourhajibagher
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Rashin Bahrami
- Dental Sciences Research Center, Department of Orthodontics, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran
| | - Abbas Bahador
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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11
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Ozer NE, Sahin Z, Yikici C, Duyan S, Kilicarslan MA. Bacterial adhesion to composite resins produced by additive and subtractive manufacturing. Odontology 2024; 112:460-471. [PMID: 37819468 DOI: 10.1007/s10266-023-00862-5] [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: 05/15/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023]
Abstract
The aim of this study was to evaluate the surface roughness and contact angle of composite resins produced by CAD/CAM milling and three-dimensional (3D) printing for permanent restorations as well as the adhesion of S. mutans and S. sanguinis bacteria to these composites. Three CAD/CAM milling composite resins (Vita Enamic-VE, Cerasmart-CE, Lava Ultimate-LU) and three 3D printing resins (Varseo Smile Crown plus-VSC, Saremco print Crowntech-SPC, Formlabs 3B Permanent crown-FLP) were selected. Twenty samples were prepared for each group. Using a contact profilometer, the surface roughness was determined, and an optical goniometer was used to quantify the contact angle. To evaluate the bacterial adhesion, composite specimens were immersed in mucin containing artificial saliva. All samples were incubated for 24 h at 37°C in 5% CO2. CFUs were determined by counting colonies after the incubation period. Surface roughness values of test samples were the highest in the Group VSC [0.46 (0.14) µm], whereas the lowest values were found in the Group LU [0.23 (0.05) µm]. There was no statistically significant difference between the groups in contact angle values (p > 0.05). The S. mutans adhesion extent on the Group SPC was statistically higher compared to all other materials with p < 0.05. For S. sanguinis, the lowest bacterial adhesion value was recorded in Group CE (3.00 × 104 CFU/ml) and statistically significant differences were found with Group VE and VSC (p < 0.05). Different digital manufacturing techniques and material compositions can affect the surface roughnesses of composite resins. All composite resin samples have hydrophobic characteristics. Microbial adhesion of the tested composite resins may be varied depending on the bacterial species. S. mutans showed much more adhesion to these materials than S. sanguinis.
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Affiliation(s)
- Nazire Esra Ozer
- Department of Prosthodontics, Faculty of Dentistry, Lokman Hekim University, Söğütözü. 2179 St., 06510, Çankaya, Ankara, Turkey.
| | - Zeynep Sahin
- Department of Prosthodontics, Faculty of Dentistry, Lokman Hekim University, Söğütözü. 2179 St., 06510, Çankaya, Ankara, Turkey
| | - Cansu Yikici
- Department of Restorative Dentistry, Faculty of Dentistry, Lokman Hekim University, Çankaya, Ankara, Turkey
| | - Serhat Duyan
- Department of Medical Microbiology, Department of Microbiology, University of Health Sciences, Gülhane Training and Research Hospital, Etlik, Ankara, Turkey
| | - Mehmet Ali Kilicarslan
- Department of Prosthodontics, Faculty of Dentistry, Ankara University, Yenimahalle, Ankara, Turkey
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12
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Alansari N, Abed H, Abid M. Oral flora and functional dysbiosis of cleft lip and palate patients: A scoping review. SPECIAL CARE IN DENTISTRY 2024; 44:255-268. [PMID: 37173294 DOI: 10.1111/scd.12872] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
AIMS This scoping review aimed to conduct an assessment of the current literature on specific ecological changes in the oral microbiota of individuals living with cleft lip and/or palate. METHODS All studies that assess oral microbiota and ecological changes distinct of individuals living with cleft lip and/or palate were included. Ovid MEDLINE and EMBASE databases were used, using planned search keywords. Included articles were grouped into cohort, cross-sectional, case-control, and retrospective reviews. RESULTS A total of 164 eligible title articles were recognized. Of these, 32 full-text studies were included in the present review. All the included articles were published between 1992 and 2022. These studies were two retrospective studies, two review studies, and the remaining (n = 28) were observational studies. CONCLUSION The oral flora of cleft lip and/or palate patients has been shown in scientific studies to have an increased frequency of potentially pathogenic fungal and bacterial colonization, particularly Candida species, Staphylococcus aureus, Lactobacili and Streptococci mutans. This may influence oral diseases and post-operative repair complications, potentially necessitating further surgical intervention.
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Affiliation(s)
- Nadia Alansari
- Department of Orthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq
- Department of Orthodontics, Al Rafidain University College, Baghdad, Iraq
| | - Hassan Abed
- Department of Basic and Clinical Oral Sciences, Division of Oral Medicine, Faculty of Dentistry, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Mushriq Abid
- Department of Orthodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq
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13
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Wu T, Bai Y, Jing Y, Chen F. What can we learn from treatments of oral lichen planus? Front Cell Infect Microbiol 2024; 14:1279220. [PMID: 38426013 PMCID: PMC10902003 DOI: 10.3389/fcimb.2024.1279220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 01/22/2024] [Indexed: 03/02/2024] Open
Abstract
Oral lichen planus (OLP), a T-lymphocyte-mediated disease of the oral mucosa, has a complex pathogenesis that involves a number of factors. The disease is characterized by recurrent episodes and requires continuous follow up, and there is no curative treatment available. Erosive lichen planus, among others, has a risk of malignant transformation and requires standardized treatment to control its progression. Different clinical subtypes of oral lichen planus require appropriate treatment. Pharmacological treatments are the most widely available and have the greatest variety of options and a number of novel pharmacological treatments are presented as highlights, including JAK enzyme inhibitors. The second is photodynamic therapy, which is the leading physiological treatment. In addition, periodontal treatment and psychological treatment should not be neglected. In this review, we briefly discuss the most recent developments in therapies for oral lichen planus after summarizing the most widely used clinical treatments, aiming to provide different proposals for future clinical treatment.
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Affiliation(s)
- Tingting Wu
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yang Bai
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yin Jing
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Fangchun Chen
- Stomatological Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
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Vieira SM, Mima EGDO, Honório HM, Moher D, Drugowick LMH, Stabili MRG, Dovigo LN. A protocol for an overview of systematic reviews to map photodynamic inactivation evidence in different dental specialties. Photochem Photobiol Sci 2024; 23:387-394. [PMID: 38341812 DOI: 10.1007/s43630-023-00523-0] [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: 10/13/2023] [Accepted: 12/13/2023] [Indexed: 02/13/2024]
Abstract
This is a protocol for an overview to summarize the findings of Systematic Reviews (SR) dealing with Photodynamic Inactivation (PDI) for control of oral diseases. Specific variables of oral infectious will be considered as outcomes, according to dental specialty. Cochrane Database of Systematic Reviews (CDSR), MEDLINE, LILACS, Embase, and Epistemonikos will be searched, as well as reference lists. A search strategy was developed for each database using only terms related to the intervention (PDI) aiming to maximize sensitivity. After checking for duplicate entries, selection of reviews will be performed in a two-stage technique: two authors will independently screening titles and abstracts, and then full texts will be assessed for inclusion/exclusion criteria. Any disagreement will be resolved through discussion and/or consultation with a third reviewer. Data will be extracted following the recommendations in Chapter V of Cochrane Handbook and using an electronic pre-specified form. The evaluation of the methodological quality and risk of bias (RoB) of the SR included will be carried out using the AMSTAR 2 and ROBIS. Narrative summaries of relevant results from the individual SR will be carried out and displayed in tables and figures. A specific summary will focus on PDI parameters and study designs, such as the type and concentration of photosensitizer, pre-irradiation time, irradiation dosimetry, and infection or microbiological models, to identify the PDI protocols with clinical potential. We will summarize the quantitative results of the SRs narratively.
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Affiliation(s)
- Sâmmea Martins Vieira
- Department of Social Dentistry, School of Dentistry, São Paulo State University (UNESP), Rua Humaitá 1680, Araraquara, SP, CEP 14801-903, Brazil
| | - Ewerton Garcia de Oliveira Mima
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Heitor Marques Honório
- Department of Pediatric Dentistry, Orthodontics and Collective Health, School of Dentistry, University of São Paulo (USP), Bauru, SP, Brazil
| | - David Moher
- Ottawa Hospital Research Institute, Centre for Journalology, Ottawa, Canada
| | - Lara Maria Herrera Drugowick
- State University of Campinas (UNICAMP), Institute of Mathematics, Statistics and Scientific Computing, Campinas, SP, Brazil
| | | | - Lívia Nordi Dovigo
- Department of Social Dentistry, School of Dentistry, São Paulo State University (UNESP), Rua Humaitá 1680, Araraquara, SP, CEP 14801-903, Brazil.
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15
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Abdulkareem AA, Al-Taweel FB, Al-Sharqi AJ, Gul SS, Sha A, Chapple IL. Current concepts in the pathogenesis of periodontitis: from symbiosis to dysbiosis. J Oral Microbiol 2023; 15:2197779. [PMID: 37025387 PMCID: PMC10071981 DOI: 10.1080/20002297.2023.2197779] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
The primary etiological agent for the initiation and progression of periodontal disease is the dental plaque biofilm which is an organized aggregation of microorganisms residing within a complex intercellular matrix. The non-specific plaque hypothesis was the first attempt to explain the role of the dental biofilm in the pathogenesis of periodontal diseases. However, the introduction of sophisticated diagnostic and laboratory assays has led to the realisation that the development of periodontitis requires more than a mere increase in the biomass of dental plaque. Indeed, multispecies biofilms exhibit complex interactions between the bacteria and the host. In addition, not all resident microorganisms within the biofilm are pathogenic, since beneficial bacteria exist that serve to maintain a symbiotic relationship between the plaque microbiome and the host’s immune-inflammatory response, preventing the emergence of pathogenic microorganisms and the development of dysbiosis. This review aims to highlight the development and structure of the dental plaque biofilm and to explore current literature on the transition from a healthy (symbiotic) to a diseased (dysbiotic) biofilm in periodontitis and the associated immune-inflammatory responses that drive periodontal tissue destruction and form mechanistic pathways that impact other systemic non-communicable diseases.
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Affiliation(s)
- Ali A. Abdulkareem
- Department of Periodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq
- CONTACT Ali A. Abdulkareem College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Firas B. Al-Taweel
- Department of Periodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Ali J.B. Al-Sharqi
- Department of Periodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq
| | - Sarhang S. Gul
- College of Dentistry, University of Sulaimani, Sulaimani, Iraq
| | - Aram Sha
- College of Dentistry, University of Sulaimani, Sulaimani, Iraq
| | - Iain L.C. Chapple
- Periodontal Research Group, Institute of Clinical Sciences, College of Medical & Dental Sciences, University of Birmingham, Birmingham, UK
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16
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El Zawawy NA, El-Safty S, Kenawy ER, Ibrahim Salem S, Ali SS, Mahmoud YAG. Exploring the biomedical potential of a novel modified glass ionomer cement against the pandrug-resistant oral pathogen Candida albicans SYN-01. J Oral Microbiol 2023; 15:2195741. [PMID: 37008537 PMCID: PMC10064826 DOI: 10.1080/20002297.2023.2195741] [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] [Indexed: 04/03/2023] Open
Abstract
Dental caries is an infectious disease that is a major concern for dentists. Streptococci and Lactobacilli were long thought to be the primary etiology responsible for caries. Candida albicans with acidogenic and aciduric characteristics has recently been implicated in the onset and progression of cariogenic lesions. Moreover, due to the increased resistance to common antimicrobials, the discovery of innovative candidates is in high demand. Therefore, our study might be the first report that explores the efficacy of glass ionomer cement (GIC) incorporated with a newly modified carboxylated chitosan derivative (CS-MC) against multidrug-resistant (MDR) and/or pandrug resistant (PDR) C. albicans isolated from the oral cavity. In this work, four CS-MC-GIC groups with different concentrations were formulated. Group four (CS-MC-GIC-4) gave a significant performance as an anticandidal agent against selected PDR Candida strain, with an obvious decrease in its cell viability and high antibiofilm activity. It also, enhanced all the mechanical properties and supports cell viability of Vero cells as a nontoxic compound. Moreover, CS-MC-GIC-4 inhibited neuraminidases completely, which might provide a novel mechanism to prevent dental/oral infections. Thus, findings in this study open up new prospect of the utilization of CS-MC-GIC as a novel dental filling material against oral drug-resistant Candida.
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Affiliation(s)
- Nessma A. El Zawawy
- Botany Department, Faculty of Science Tanta University, Tanta, Egypt
- CONTACT Nessma A. El Zawawy Botany Department, Faculty of Science, Tanta University, Tanta31527, Egypt
| | - Samy El-Safty
- Biomaterials Department, Faculty of Dentistry, Tanta University, Tanta, Egypt
| | - El-Refaie Kenawy
- Polymer Research Group, Department of Chemistry, Faculty of Science Tanta University, Tanta, Egypt
| | - Sara Ibrahim Salem
- Polymer Research Group, Department of Chemistry, Faculty of Science Tanta University, Tanta, Egypt
| | - Sameh S. Ali
- Botany Department, Faculty of Science Tanta University, Tanta, Egypt
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Rux C, Wittmer A, Stork A, Vach K, Hellwig E, Cieplik F, Al-Ahmad A. Optimizing the use of low-frequency ultrasound for bacterial detachment of in vivo biofilms in dental research-a methodological study. Clin Oral Investig 2023; 28:19. [PMID: 38141103 DOI: 10.1007/s00784-023-05397-1] [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: 10/31/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023]
Abstract
OBJECTIVES Low-frequency, low-intensity ultrasound is commonly utilized in various dental research fields to remove biofilms from surfaces, but no clear recommendation exists in dental studies so far. Therefore, this study aims to optimize the sonication procedure for the dental field to efficiently detach bacteria while preserving viability. MATERIALS AND METHODS Initial biofilm was formed in vivo on bovine enamel slabs (n = 6) which were worn by four healthy participants for 4 h and 24 h. The enamel slabs covered with biofilm were then ultrasonicated ex vivo for various time periods (0, 1, 2, 4, 6 min). Colony-forming units were determined for quantification, and bacteria were identified using MALDI-TOF. Scanning electron microscopic images were taken to also examine the efficiency of ultrasonications for different time periods. RESULTS Ultrasonication for 1 min resulted in the highest bacterial counts, with at least 4.5-fold number compared to the non-sonicated control (p < 0.05). Most bacteria were detached within the first 2 min of sonication, but there were still bacteria detached afterwards, although significantly fewer (p < 0.0001). The highest bacterial diversity was observed after 1 and 2 min of sonication (p < 0.03). Longer sonication periods negatively affected bacterial counts of anaerobes, Gram-negative bacteria, and bacilli. Scanning electron microscopic images demonstrated the ability of ultrasound to desorb microorganisms, as well as revealing cell damage and remaining bacteria. CONCLUSIONS With the use of low-frequency, low-intensity ultrasound, significantly higher bacterial counts and diversity can be reached. A shorter sonication time of 1 min shows the best results overall. CLINICAL RELEVANCE This standardization is recommended to study initial oral biofilms aged up to 24 h to maximize the outcome of experiments and lead to better comparability of studies.
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Affiliation(s)
- Cassandra Rux
- Department of Operative Dentistry and Periodontology, Medical Center, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Annette Wittmer
- Institute of Medical Microbiology and Hygiene, Faculty of Medicine, University of Freiburg, Hermann-Herder- Str. 11, 79104, Freiburg, Germany
| | - Anja Stork
- Department of Operative Dentistry and Periodontology, Medical Center, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Kirstin Vach
- Institute for Medical Biometry and Statistics, Faculty of Medicine, University of Freiburg, Stefan-Meier-Str. 26, 79104, Freiburg, Germany
| | - Elmar Hellwig
- Department of Operative Dentistry and Periodontology, Medical Center, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany
| | - Fabian Cieplik
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Ali Al-Ahmad
- Department of Operative Dentistry and Periodontology, Medical Center, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106, Freiburg, Germany.
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18
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Krishnan A, Rajendran R, Damodaran D, Manmadhan SK, Krishnan V. Long-term changes in thickness, live/dead bacterial ratio, and mineral content in biofilm on ceramic and stainless steel orthodontic attachments. J Orofac Orthop 2023; 84:251-258. [PMID: 36820892 DOI: 10.1007/s00056-023-00452-8] [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: 04/11/2022] [Accepted: 01/08/2023] [Indexed: 02/24/2023]
Abstract
PURPOSE Fixed orthodontic appliances induce biofilm deposition, which harbors a microbial population harmful to the periodontal health of the individual. The present study evaluated the changes in thickness, live/dead bacterial ratio, and mineral content in dental biofilm over 6 months in patients with either stainless steel or ceramic orthodontic attachments. METHODS Eighty patients who require fixed orthodontic appliance treatment with first premolar extraction for correcting their malocclusion were selected and bonded with either stainless steel or ceramic orthodontic attachments on the buccal side. The attached buttons were retrieved at different periods-1 week, 1 month, 3 months, and 6 months. They were stained and visualized through confocal microscopy to detect biofilm thickness and the ratio of live/dead bacteria. X‑ray diffraction was used to identify the presence of calcium and phosphorous. RESULTS Ceramic attachments showed a greater increase in biofilm thickness in comparison to stainless steel attachments except in the initial 1‑week evaluation. A higher live/dead bacterial ratio was observed in stainless steel attachments than in their ceramic counterparts at all four evaluation periods. Both stainless steel and ceramic surfaces exhibited the presence of mineral deposition (calcium and phosphorous) at all periods. CONCLUSIONS More biofilm adhesion was observed over ceramic surfaces than over stainless steel orthodontic attachments. Stainless steel attachments exhibited biofilm with a higher live/dead bacterial ratio than their ceramic counterparts at all evaluation periods. The presence of calcium and phosphorous in the adhered biofilm, pointing toward its calcification process, was identified.
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Affiliation(s)
- Anjali Krishnan
- Department of Orthodontics, Sri Sankara Dental College, Akathumuri, Varkala, Trivandrum, Kerala, India
| | - Rahul Rajendran
- Department of Orthodontics, Sri Sankara Dental College, Akathumuri, Varkala, Trivandrum, Kerala, India
| | - Deepak Damodaran
- Department of Orthodontics, Sri Sankara Dental College, Akathumuri, Varkala, Trivandrum, Kerala, India
| | - Sreelekshmi K Manmadhan
- Department of Orthodontics, Sri Sankara Dental College, Akathumuri, Varkala, Trivandrum, Kerala, India
| | - Vinod Krishnan
- Department of Orthodontics, Sri Sankara Dental College, Akathumuri, Varkala, Trivandrum, Kerala, India.
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Rikvold PT, Kambourakis Johnsen K, Leonhardt D, Møllebjerg A, Nielsen SM, Skov Hansen LB, Meyer RL, Schlafer S. A New Device for In Situ Dental Biofilm Collection Additively Manufactured by Direct Metal Laser Sintering and Vat Photopolymerization. 3D PRINTING AND ADDITIVE MANUFACTURING 2023; 10:1036-1045. [PMID: 37886402 PMCID: PMC10599433 DOI: 10.1089/3dp.2022.0009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Dental biofilms are complex medical biofilms that cause caries, the most prevalent disease of humankind. They are typically collected using handcrafted intraoral devices with mounted carriers for biofilm growth. As the geometry of handcrafted devices is not standardized, the shear forces acting on the biofilms and the access to salivary nutrients differ between carriers. The resulting variability in biofilm growth renders the comparison of different treatment modalities difficult. The aim of the present work was to design and validate an additively manufactured intraoral device with a dental bar produced by direct metal laser sintering and vat photopolymerized inserts with standardized geometry for the mounting of biofilm carriers. Additive manufacturing reduced the production time and cost, guaranteed an accurate fit of the devices and facilitated the handling of carriers without disturbing the biofilm. Biofilm growth was robust, with increasing thickness over time and moderate inter- and intraindividual variation (coefficients of variance 0.48-0.87). The biofilms showed the typical architecture and composition of dental biofilms, as evidenced by confocal microscopy and 16S rRNA gene sequencing. Deeper inserts offering increased protection from shear tended to increase the biofilm thickness, whereas prolonged exposure to sucrose during growth increased the biofilm volume but not the thickness. Ratiometric pH imaging revealed considerable pH variation between participants and also inside single biofilms. Intraoral devices for biofilm collection constitute a new application for medical additive manufacturing and offer the best possible basis for studying the influence of different treatment modalities on biofilm growth, composition, and virulence. The Clinical Trial Registration number is: 1-10-72-193-20.
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Affiliation(s)
- Pernille Thestrup Rikvold
- Section for Oral Ecology and Caries Control, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | - Karina Kambourakis Johnsen
- Section for Oral Ecology and Caries Control, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | - Dirk Leonhardt
- Central Laboratory, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | - Andreas Møllebjerg
- Interdisciplinary Nanoscience Center (iNANO), Science and Technology, Aarhus University, Aarhus, Denmark
| | - Signe Maria Nielsen
- Interdisciplinary Nanoscience Center (iNANO), Science and Technology, Aarhus University, Aarhus, Denmark
| | | | - Rikke Louise Meyer
- Interdisciplinary Nanoscience Center (iNANO), Science and Technology, Aarhus University, Aarhus, Denmark
| | - Sebastian Schlafer
- Section for Oral Ecology and Caries Control, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
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20
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Al-Fahham BM, Mohamed RA, Al-Talqani JMT, Fahad AH, Haider J. Evaluating Antimicrobial Effectiveness of Gold Nanoparticles against Streptococcus oralis. Int J Dent 2023; 2023:9935556. [PMID: 37771364 PMCID: PMC10533241 DOI: 10.1155/2023/9935556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 07/31/2023] [Accepted: 09/04/2023] [Indexed: 09/30/2023] Open
Abstract
Biofilm includes many microorganisms that causes the periodontal diseases. The increased drugs resistance against the infectious diseases is a major issue owing to excessive using of a broad spectrum of antibiotics. Recently, metallic nanoparticles (NPs) are being administered to control the growth of different types of microorganisms. For instance, gold nanoparticles (Au NPs) are found to be successful to control and limit the bacterial pathogenicity in the oral cavity without any cytotoxic effects on the human body. Aim. In this paper, it was aimed to detect the antibacterial effect of Au NPs and compare with chlorhexidine (CHX) against Streptococcus oralis (S. oralis) in dental plaque of patients with chronic periodontitis. Materials and Methods. First, supragingival and subgingival plaque samples were collected from the patients suffering from periodontal disease and incubated under aerobic or/and anaerobic conditions. Second, the morphological examination, and biochemical test by Vitec 2 machine are used to confirm the S. oralis species. Third, the synthesis of Au NPs was carried out by seed growth method and their properties were characterized. Finally, the antimicrobial effect of the Au NPs against S. oralis was evaluated by Agar well diffusion method for different Au NPs concentrations (100, 50, 25, 12.5, 6.25, 3.125, 1.562, 0.781, 0.391, 0.195, and 0.097 ppm). CHX was used as the positive control and distilled water as the negative control. The antibacterial activity data were statistically analyzed by least significant difference (LSD) using the Statistical Program for Social Science (SPSS) version 22. Results. The Au NPs with an average particles size of 43 nm, polycrystalline face-centered cubic structure were characterized. The Au NPs at 100 ppm concentration had similar antibacterial effect of CHX for inhibiting the growth of S. oralis, with no significant difference. Conclusions. The Au NPs as an antibacterial agent could be equally effective against S. oralis similar to the CHX when used at higher concentration.
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Affiliation(s)
- Batool M Al-Fahham
- Department of Pediatric and Preventive dentistry, College of Dentistry, University of Kufa, Iraq
| | - Rafeef Ahmed Mohamed
- Department of Pediatric and Preventive dentistry, College of Dentistry, University of Kufa, Iraq
| | | | - Ali Hadi Fahad
- Department of Pediatric and Preventive dentistry, College of Dentistry, University of Kufa, Iraq
| | - Julfikar Haider
- Department of Engineering, Manchester Metropolitan University, Manchester, M12 5GN, UK
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21
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Umalkar YN, Jadhav VV, Paul P, Saoji KP. Comparative Evaluation of Cleaning Efficacy of Interdental Brush and Interdental Floss in Orthodontics Patients From Vidarbha Region: An Interventional Study. Cureus 2023; 15:e46191. [PMID: 37905279 PMCID: PMC10613348 DOI: 10.7759/cureus.46191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 09/29/2023] [Indexed: 11/02/2023] Open
Abstract
Background Plaque and dental caries are the primary agents causing gingival and periodontal diseases, eventually progressing into tooth loss. If oral hygiene practice is poor, plaque easily accumulates on the tooth surface, especially in interproximal areas. To maintain a good oral environment, it is mandatory to remove or at least reduce the percentage of plaque formation from the oral cavity. To achieve this, interdental aids should be used along with toothbrushes, as cleansing the teeth only with a toothbrush is not effective. Various interdental aids, like interdental brushes, floss, toothpicks, etc., are now available on the market. The objective of the current survey was to rate knowledge as well as make a comparison between the cleaning effectiveness of interdental brushes and interdental floss to determine which was better at reducing plaque accumulation and, subsequently, dental caries. The survey was accessed by measuring individual plaque and gingival index before and after using interdental cleaning aids. Methodology The objective of the survey was to evaluate and analyze the efficiency of interdental brushes and interdental floss in maintaining oral hygiene among orthodontic patients residing in the Vidarbha region. After receiving approval from the Ethical Committee DMIHER(DU)/IEC/2023/721, a study was conducted over a 30-day period, focusing on a group of 100 individuals aged between 15 and 30 years, and their assessments were analyzed. The patient was briefed about the study and asked to make use of an interdental brush and interdental floss. The gingival index and plaque index were calculated on the same patients before and after the use of the interdental brush and interdental floss to determine which was better at reducing plaque accumulation on the surface of teeth. Descriptive analysis, unpaired for intergroup comparison, and paired T-tests for intragroup comparison were used. The software used was SPSS 24.0 (IBM Corp., Armonk, NY) and GraphPad Prism 7.0 (GraphPad Software, Inc., La Jolla, CA). Result Everyone's tooth surfaces naturally develop a thin layer of plaque biofilm, but the presence of heavy plaque deposits on teeth indicates poor dental hygiene, which can lead to various oral health issues. Failure to improve dental hygiene status can result in problems such as halitosis, gingival issues, periodontal disease, and eventually tooth loss. Dentists play a crucial role in raising awareness about these concerns among their patients and providing education on effective oral care practices, including the use of interdental aids in conjunction with toothbrushes. When comparing the effectiveness of interdental brushes and dental floss in removing plaque, interdental brushes have been found to be more efficient. They not only excel in plaque removal but also contribute to a reduction in gingival problems. The statistical analysis supports this, with a significant p-value of less than 0.01 for both the plaque index and gingival index when using interdental brushes, indicating their superior performance in maintaining oral health. Conclusion The study will help every individual improve their oral hygiene status with the help of an interdental aid and a toothbrush. This will reduce the chances of having gingival and periodontal diseases and eventually reduce the risk of tooth loss.
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Affiliation(s)
- Yukta N Umalkar
- Orthodontics and Dentofacial Orthopaedics, Sharad Pawar Dental College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Vikrant V Jadhav
- Orthodontics and Dentofacial Orthopaedics, Sharad Pawar Dental College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Priyanka Paul
- Public Health Dentistry, Sharad Pawar Dental College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Kaushiki P Saoji
- Orthodontics and Dentofacial Orthopaedics, Sharad Pawar Dental College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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22
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Kim JM, Yoo SY, An JS, Woo JJ, Cho YD, Park HE, Karm MH. Effect of a multichannel oral irrigator on periodontal health and the oral microbiome. Sci Rep 2023; 13:12043. [PMID: 37491575 PMCID: PMC10368725 DOI: 10.1038/s41598-023-38894-0] [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: 02/15/2023] [Accepted: 07/17/2023] [Indexed: 07/27/2023] Open
Abstract
Oral biofilms or dental plaques are one of the major etiological factors for diverse oral diseases. We aimed to evaluate the effect of a multichannel oral irrigator (MCOI) on periodontal health in 29 participants randomly divided into two groups: the MCOI group and the control group. To evaluate the effect of the MCOI on periodontal health, the modified Quigley Hein Plaque Index (PI), Mühlemann-Son Sulcus Bleeding Index (SBI), bleeding on probing (BOP), and swelling were evaluated and compared before and after MCOI use for 3 days. Although PI and SBI showed statistically significant increases in the control group, the MCOI group showed no significant changes in either parameter. Moreover, the percentage of BOP was significantly lower in the MCOI group. Saliva samples were analyzed by 16s rRNA amplicon sequencing to investigate changes in the oral microbiome. Sequencing results showed that Porphyromonas spp. were significantly increased in the control group, whereas no significant change was detected in the MCOI group. Using the MCOI, enriched populations and functional pathways were detected in pioneer species comprising non-mutans streptococci. These findings provide evidence of the effectiveness of the MCOI in maintaining periodontal health and a healthy microbial ecology in the oral cavity.
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Affiliation(s)
- Jin Man Kim
- Department of Oral Microbiology and Immunology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Soo-Yeon Yoo
- Department of Prosthodontics, Seoul National University Dental Hospital, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Jung-Sub An
- Department of Orthodontics, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Jihee Jessica Woo
- Department of Oral and Maxillofacial Surgery and Department of Periodontics, Columbia University College of Dental Medicine, 630 West 168Th Street, New York, 10032, USA
| | - Young-Dan Cho
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University and Seoul National University Dental Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Hwi Eun Park
- Department of Dental Anesthesiology, Seoul National University Dental Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Myong-Hwan Karm
- Department of Dental Anesthesiology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
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D'Elia G, Floris W, Marini L, Corridore D, Rojas MA, Ottolenghi L, Pilloni A. Methods for Evaluating the Effectiveness of Home Oral Hygiene Measures-A Narrative Review of Dental Biofilm Indices. Dent J (Basel) 2023; 11:172. [PMID: 37504238 PMCID: PMC10378657 DOI: 10.3390/dj11070172] [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: 06/07/2023] [Revised: 07/09/2023] [Accepted: 07/14/2023] [Indexed: 07/29/2023] Open
Abstract
Dental plaque is a biofilm structured in an extracellular matrix of polymers of host and microbial origin; the microorganisms can coexist in harmony with the host, thus guarantying oral health. Environmental modifications can lead to dysbiosis and onset of oral diseases; in fact, plaque is the etiological agent both of periodontal disease and dental decay. The use of an effective oral hygiene index should be considered as a relevant goal for the clinicians and the researchers, and consequently, numerous plaque indices have been proposed during the years. The present literature review aims primarily to obtain a complete summary of these scores to assess plaque deposits. It is useful because the clinician/researcher will select the right scoring method for the specific situation only if he knows the available options and if he is aware of both their strengths and weaknesses. This review applies a basic classification of plaque indices that distinguishes the ones that use non-quantitative methods from the ones that use quantitative methods. Non-quantitative methods are more subjective because they are based on the ability of the clinician to point out the presence or the entity of deposits, while quantitative methods introduce objectifiable means to measure plaque deposits.
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Affiliation(s)
- Gerarda D'Elia
- Section of Periodontics, Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, #6 Via Caserta, 00161 Rome, Italy
| | - William Floris
- Section of Periodontics, Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, #6 Via Caserta, 00161 Rome, Italy
| | - Lorenzo Marini
- Section of Periodontics, Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, #6 Via Caserta, 00161 Rome, Italy
| | - Denise Corridore
- Section of Periodontics, Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, #6 Via Caserta, 00161 Rome, Italy
| | - Mariana Andrea Rojas
- Section of Periodontics, Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, #6 Via Caserta, 00161 Rome, Italy
| | - Livia Ottolenghi
- Section of Periodontics, Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, #6 Via Caserta, 00161 Rome, Italy
| | - Andrea Pilloni
- Section of Periodontics, Department of Oral and Maxillofacial Sciences, Sapienza University of Rome, #6 Via Caserta, 00161 Rome, Italy
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Ahirwar P, Kozlovskaya V, Nijampatnam B, Rojas EM, Pukkanasut P, Inman D, Dolmat M, Law AC, Schormann N, Deivanayagam C, Harber GJ, Michalek SM, Wu H, Kharlampieva E, Velu SE. Hydrogel-Encapsulated Biofilm Inhibitors Abrogate the Cariogenic Activity of Streptococcus mutans. J Med Chem 2023; 66:7909-7925. [PMID: 37285134 PMCID: PMC11188996 DOI: 10.1021/acs.jmedchem.3c00272] [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] [Indexed: 06/08/2023]
Abstract
We designed and synthesized analogues of a previously identified biofilm inhibitor IIIC5 to improve solubility, retain inhibitory activities, and to facilitate encapsulation into pH-responsive hydrogel microparticles. The optimized lead compound HA5 showed improved solubility of 120.09 μg/mL, inhibited Streptococcus mutans biofilm with an IC50 value of 6.42 μM, and did not affect the growth of oral commensal species up to a 15-fold higher concentration. The cocrystal structure of HA5 with GtfB catalytic domain determined at 2.35 Å resolution revealed its active site interactions. The ability of HA5 to inhibit S. mutans Gtfs and to reduce glucan production has been demonstrated. The hydrogel-encapsulated biofilm inhibitor (HEBI), generated by encapsulating HA5 in hydrogel, selectively inhibited S. mutans biofilms like HA5. Treatment of S. mutans-infected rats with HA5 or HEBI resulted in a significant reduction in buccal, sulcal, and proximal dental caries compared to untreated, infected rats.
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Affiliation(s)
- Parmanand Ahirwar
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Veronika Kozlovskaya
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | | | - Edwin M. Rojas
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- School of Dentistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Piyasuda Pukkanasut
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Daniel Inman
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Maksim Dolmat
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Anna C. Law
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Norbert Schormann
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Champion Deivanayagam
- Department of Biochemistry and Molecular Genetics, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Gregory J. Harber
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Suzanne M. Michalek
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Hui Wu
- Department of Integrative Biomedical and Diagnostic Sciences, Oregon Health and Science University, Portland, OR 97239, USA
| | - Eugenia Kharlampieva
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Center of Nanoscale Materials and Biointegration, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Sadanandan E. Velu
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Microbiome Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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25
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Knowles AA, Campbell SG, Cross NA, Stafford P. Dysregulation of Stress-Induced Translational Control by Porphyromonas gingivalis in Host Cells. Microorganisms 2023; 11:microorganisms11030606. [PMID: 36985180 PMCID: PMC10057856 DOI: 10.3390/microorganisms11030606] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 03/04/2023] Open
Abstract
Porphyromonas gingivalis contributes to the chronic oral disease periodontitis, triggering the activation of host inflammatory responses, inducing cellular stresses such as oxidation. During stress, host cells can activate the Integrated Stress Response (ISR), a pathway which determines cellular fate, by either downregulating protein synthesis and initiating a stress–response gene expression program, or by initiating programmed cell death. Recent studies have implicated the ISR within both host antimicrobial defenses and the pathomechanism of certain microbes. In this study, using a combination of immunofluorescence confocal microscopy and immunoblotting, the molecular mechanisms by which P. gingivalis infection alters translation attenuation during oxidative stress-induced activation of the ISR in oral epithelial cells were investigated. P. gingivalis infection alone did not result in ISR activation. In contrast, infection coupled with stress caused differential stress granule formation and composition. Infection heightened stress-induced translational repression independently of core ISR mediators. Heightened translational repression during stress was observed with both P. gingivalis–conditioned media and outer membrane vesicles, implicating a secretory factor in this exacerbated translational repression. The effects of gingipain inhibitors and gingipain-deficient P. gingivalis mutants confirmed these pathogen-specific proteases as the effector of exacerbated translational repression. Gingipains are known to degrade the mammalian target of rapamycin (mTOR) and the findings of this study implicate the gingipain-mTOR axis as the effector of host translational dysregulation during stress.
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26
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Lee J, Cho S, Kim HE. Antimicrobial Effects of Non-Thermal Atmospheric Pressure Plasma on Oral Microcosm Biofilms. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2447. [PMID: 36767814 PMCID: PMC9915355 DOI: 10.3390/ijerph20032447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/18/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
We comparatively evaluated the antibacterial effects of non-thermal atmospheric pressure plasma (NTAPP) on oral microcosm biofilms. Oral microcosm biofilms, which are derived from inoculation with human saliva, were cultured on 48 hydroxyapatite disks for 6 days. The prepared biofilms were divided into three different daily treatment groups: distilled water for 1 min, 0.12% chlorhexidine (CHX) for 1 min, and NTAPP for 5 min. Using a quantitative light-induced fluorescence-digital camera, the red fluorescence intensity of the biofilms was measured as red/green ratios (RatioR/G) before and after treatment. Total and aciduric bacteria were counted as colony-forming units. Using live/dead bacterial staining, bacterial viability was calculated as the RatioG/G+R. RatioR/G was approximately 0.91-fold lower in the NTAPP group than in the CHX group on day 1 of treatment (p = 0.001), and approximately 0.94-fold lower on both days 2 and 3 (p < 0.001). The number of total bacteria was higher in the NTAPP group than in the CHX group, but not significantly different. The number of aciduric bacteria was lowest in the CHX group (p < 0.001). However, bacterial viability was lowest in the NTAPP group. Restricted bacterial aggregation was observed in the NTAPP group. These findings suggest that NTAPP may more effectively reduce the pathogenicity of oral microcosm biofilms than 0.12% CHX.
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Affiliation(s)
- Jiyeon Lee
- Department of Health Science, Gachon University Graduate School of Public Health, Incheon 21936, Republic of Korea
| | - Sungbo Cho
- Department of Electronic Engineering, Gachon University, Seongnam-si 13120, Republic of Korea
| | - Hee-Eun Kim
- Department of Health Science, Gachon University Graduate School of Public Health, Incheon 21936, Republic of Korea
- Department of Dental Hygiene, Gachon University College of Health Science, Incheon 21936, Republic of Korea
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27
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Tan X, Liu S, Hu X, Zhang R, Su X, Qian R, Mai Y, Xu Z, Jing W, Tian W, Xie L. Near-Infrared-Enhanced Dual Enzyme-Mimicking Ag-TiO 2-x@Alginate Microspheres with Antibactericidal and Oxygeneration Abilities to Treat Periodontitis. ACS APPLIED MATERIALS & INTERFACES 2023; 15:391-406. [PMID: 36562459 DOI: 10.1021/acsami.2c17065] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The effective treatment for periodontitis is to completely and sustainedly eradicate the bacterial pathogens from the complex periodontal pockets. Local sustained-release antibiotics as a complementary treatment after scaling and root planning can sustainedly combat bacterial pathogens in the periodontal pockets to help treat the disease, but the increasing concern of bacterial resistance limits its future use. Here, we reported a local antibacterial system based on microsized multifunctional Ag-TiO2-x encapsulated in alginate (ATA) microspheres. We confirmed that ATA displayed strong photothermally enhanced dual enzyme-mimicking (peroxidase-like and catalase-like) activities and weak photocatalytic activity under 808 nm near-infrared (NIR) irradiation, which could boost the generation of reactive oxygen species (ROS) and O2 in the presence of low-level H2O2. As a result, the ATA/H2O2/NIR system exhibited efficient antibacterial activity against Porphyromonas gingivalis and Streptococcus gordonii in both planktonic and biofilm forms. With the help of ROS, ATA could release Ag+ in concentrations sufficient to inhibit periodontal pathogens as well. Moreover, the in situ-generated oxygen was supposed to alleviate the local hypoxic environment and would help downregulate the lipopolysaccharide-mediated inflammatory response of periodontal stem cells. The in vivo rat periodontitis treatment results demonstrated that the ATA/H2O2/NIR system reduced the bacterial load, relieved inflammation, and improved tissue healing. Our work developed a new local prolonged bactericidal and oxygenation system for enhanced periodontitis. Avoiding the usage of antibiotics and nanomaterials, this strategy showed great promise in adjunctive periodontitis treatment and also in other biomedical applications.
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Affiliation(s)
- Xinzhi Tan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Suru Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xingyu Hu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ruitao Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xiaofan Su
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Ruojing Qian
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yao Mai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Zhaoyu Xu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Wei Jing
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Weidong Tian
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Li Xie
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Engineering Research Center of Oral Translational Medicine, Ministry of Education & National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
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28
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Seidel CL, Strobel K, Weider M, Tschaftari M, Unertl C, Willershausen I, Weber M, Hoerning A, Morhart P, Schneider M, Beckmann MW, Bogdan C, Gerlach RG, Gölz L. Orofacial clefts alter early life oral microbiome maturation towards higher levels of potentially pathogenic species: A prospective observational study. J Oral Microbiol 2023; 15:2164147. [PMID: 36632344 PMCID: PMC9828641 DOI: 10.1080/20002297.2022.2164147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Orofacial clefts (OFC) present different phenotypes with a postnatal challenge for oral microbiota development. In order to investigate the impact of OFC on oral microbiota, smear samples from 15 neonates with OFC and 17 neonates without OFC were collected from two oral niches (tongue, cheek) at two time points, i.e. after birth (T0: Ø3d OFC group; Ø2d control group) and 4-5 weeks later (T1: Ø32d OFC group; Ø31d control group). Subsequently, the samples were analyzed using next-generation sequencing. We detected a significant increase of alpha diversity and anaerobic and Gram-negative species from T0 to T1 in both groups. Further, we found that at T1 OFC neonates presented a significantly lower alpha diversity (lowest values for high cleft severity) and significantly higher levels of Enterobacteriaceae (Citrobacter, Enterobacter, Escherichia-Shigella, Klebsiella), Enterococcus, Bifidobacterium, Corynebacterium, Lactocaseibacillus, Staphylococcus, Acinetobacter and Lawsonella compared to controls. Notably, neonates with unilateral and bilateral cleft lip and palate (UCLP/BCLP) presented similarities in beta diversity and a mixture with skin microbiota. However, significant differences were seen in neonates with cleft palate only compared to UCLP/BCLP with higher levels of anaerobic species. Our findings revealed an influence of OFC as well as cleft phenotype and severity on postnatal oral microbiota maturation.
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Affiliation(s)
- Corinna L. Seidel
- Department of Orthodontics and Orofacial Orthopedics, Universitätsklinikum Erlangen Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany,CONTACT Corinna L. Seidel Department of Orthodontics and Orofacial Orthopedics, Universitätsklinikum Erlangen Friedrich-Alexander-Universität Erlangen-Nürnberg, Glückstraße 11, Erlangen91054, Germany
| | - Karin Strobel
- Department of Orthodontics and Orofacial Orthopedics, Universitätsklinikum Erlangen Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Matthias Weider
- Department of Orthodontics and Orofacial Orthopedics, Universitätsklinikum Erlangen Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Marco Tschaftari
- Department of Orthodontics and Orofacial Orthopedics, Universitätsklinikum Erlangen Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Christoph Unertl
- Department of Orthodontics and Orofacial Orthopedics, Universitätsklinikum Erlangen Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Ines Willershausen
- Department of Orthodontics and Orofacial Orthopedics, Universitätsklinikum Erlangen Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Manuel Weber
- Department of Oral and Cranio-Maxillofacial Surgery, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - André Hoerning
- Department of Pediatric and Adolescent Medicine, Universitätsklinikum Erlangen Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Patrick Morhart
- Department of Pediatrics, Universitätsklinikum Erlangen Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Michael Schneider
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center (CCC) Erlangen-EMN, Universitätsklinikum Erlangen Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Matthias W. Beckmann
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center (CCC) Erlangen-EMN, Universitätsklinikum Erlangen Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Christian Bogdan
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany,Medical Immunology Campus Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Roman G. Gerlach
- Mikrobiologisches Institut – Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany,Roman G. Gerlach Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene Friedrich-Alexander-Universität Erlangen-Nürnberg, Wasserturmstraße 3/5, Erlangen91054, Germany
| | - Lina Gölz
- Department of Orthodontics and Orofacial Orthopedics, Universitätsklinikum Erlangen Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany,Lina Gölz Department of Orthodontics and Orofacial Orthopedics, Universitätsklinikum Erlangen Friedrich-Alexander-Universität Erlangen-Nürnberg, Glückstraße 11, Erlangen91054, Germany
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Prasad J, Bhojraj N, Shanbhog R, Ashwini KP. Combined remineralizing effect of arginine and fluoride on artificially demineralized human primary dentin evaluated using quantitative light induced fluorescence. J Indian Soc Pedod Prev Dent 2023; 41:63-69. [PMID: 37282414 DOI: 10.4103/jisppd.jisppd_107_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
Introduction One the most common chronic dental diseases affecting children is dental caries. Dentin caries is a condition in which caries has progressed to the dentin and caused a significant depth of lesion. Clinical studies have revealed that an increased caries risk is associated with a decreased alkali-producing capacity of the microbial populations colonizing the oral cavity of adults, which arginine somewhat compensates for. Aims To evaluate the remineralizing efficacy of fluoridated toothpaste, with fluoride-arginine containing toothpaste on demineralized dentin of primary teeth using quantitative light-induced fluorescence™. Materials and Methods Forty-five primary molars were decoronated and sectioned to prepare dentin specimens and mounted in an acrylic block in a uniform manner using a customized acrylic jig. Samples were randomized into three groups, were subjected to demineralization to create artificial dentin caries lesion. Following this, all the 45 samples were subjected to multispecies bacterial pH cycling for 21 days. All the specimens were evaluated for postdemineralization, pH cycling day 7, 14, and 21 on QLF™. Results On day 21, maximum fluorescence gain was observed by the positive control group followed by the arginine and negative control group. The variation observed between positive control and arginine group was found to be statistically significant. Conclusions An in vitro development of artificial caries such as demineralized lesion on primary dentin sample using plaque biofilm was observed successfully under QLF after 72 h. Arginine in combination with fluoride showed almost similar remineralization of demineralized primary dentin compared to fluoride alone after 21 days of multispecies bacterial pH cycling.
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Affiliation(s)
- Jeessica Prasad
- Department of Pediatric and Preventive Dentistry, JSS Dental College and Hospital, Mysore, Karnataka, India
| | - Nandlal Bhojraj
- Department of Pediatric and Preventive Dentistry, JSS Dental College and Hospital, Mysore, Karnataka, India
| | - Raghavendra Shanbhog
- Department of Pediatric and Preventive Dentistry, JSS Dental College and Hospital, Mysore, Karnataka, India
| | - K P Ashwini
- Department of Pediatric and Preventive Dentistry, JSS Dental College and Hospital, Mysore, Karnataka, India
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30
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El-Sakhawy MA, M Donia AER, Kobisi ANA, Abdelbasset WK, Saleh AM, Ibrahim AM, Negm RM. Oral Candidiasis of Tobacco Smokers: A Literature Review. Pak J Biol Sci 2023; 26:1-14. [PMID: 37129200 DOI: 10.3923/pjbs.2023.1.14] [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] [Indexed: 05/03/2023]
Abstract
The mouth is a vital point of entry into the human body, the health of the mouth entails mental, physical as well as social well-being. Studying diseases, microbiota and environmental conditions of the mouth is important to maintain oral health and all body. The smoke of tobacco cigarettes is one of the worst habits that affect the health of the mouth and the body. Therefore, this review has been conducted to study the effect of smoking on the balance of the oral microbiota and the opportunistic organisms, one of the most important of them <i>Candida</i>. Although a few studies have found that cigarette smoking does not influence carriage by <i>Candida</i> significantly. However, most of the studies had results completely contrary to that, smoking cigarettes affect <i>Candida</i> pathogenic characteristics such as a transition from yeast to hyphal form, biofilm formation and, virulence-related gene expressions. Tobacco is not only an inducer of the transition process but it considers an excellent medium for this process. Furthermore, smoking was significantly associated with <i>Candida</i> pathogenicity in patients with clinically suspected oral leukoplakia and smoking worsens oral candidiasis and dampens epithelial cell defense response. Nicotine significantly altered the composition and proportion of yeast cells, as well as the extracellular polysaccharide amounts which increase biofilm matrix and thickness which could promote oral candidiasis. Smoking has the potential to alter the oral condition and cause severe oxidative stress, thereby damaging the epithelial barrier of the mouth. These oxidative molecules during smoking activate epithelial cells proteins called oxidative stress-sensing proteins. If some of these proteins induced, widely thought to have anti-inflammatory properties, inhibit the secretion of pro-inflammatory cytokines and are linked to inflammation and oxidative stress is thought to be a possible therapeutic objective and a crucial regulator for smoking-related oral diseases and mouth candidiasis for instance leukoplakia. Also, it is transported into the cell nucleus in the existence of additional electrophilic chemicals to activate antioxidant enzyme gene expression. Therefore, smoking cigarettes destroys oral health and consequently destroys the health of the whole body.
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31
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Brahim Belhaouari D, Baudoin JP, Lagier JC, Monnet-Corti V, La Scola B, Antezack A. Microscopic observations of SARS-CoV-2 like particles in different oral samples. Eur J Oral Sci 2022; 130:e12903. [PMID: 36404273 PMCID: PMC10099536 DOI: 10.1111/eos.12903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 10/21/2022] [Indexed: 11/22/2022]
Abstract
The emerging coronavirus pneumonia epidemic caused by the SARS-CoV-2 infection has spread rapidly around the world. The main routes of transmission of SARS-CoV-2 are currently recognised as aerosol/droplet inhalation. However, the involvement of the oral cavity in coronavirus disease 2019 (COVID-19) is poorly known. The current data indicates the presence of viral RNA in oral samples, suggesting the implication of saliva in SARS-CoV-2 transmission, however, no direct observation of SARS-CoV-2 particles in different oral samples has been reported. In this study, we investigated whether particles of SARS-CoV-2 were present in oral samples collected from three symptomatic COVID-19 patients. Using scanning electron microscopy (SEM), the correlative strategy of light microscopy and electron microscopy and immunofluorescence staining, we showed the presence of SARS-like particles in RT-qPCR SARS-CoV-2-positive saliva, dental plaque and gingival crevicular fluid (GCF) samples. In the saliva samples, we demonstrated the presence of epithelial oral cells with morphogenetic features of SARS-CoV-2 infected cells. Inside those cells, vacuoles filled with nascent particles were observed, suggesting the potential infection and replication of SARS-CoV-2 in oral tissues. Our results corroborate previous studies and confirm that the oral cavity may be a potential niche for SARS-CoV-2 infection and a potential source of transmission.
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Affiliation(s)
- Djamal Brahim Belhaouari
- IRD, AP-HM, IHU Méditerranée Infection, MEPHI, Aix Marseille Univ, Marseille, France.,Department of Veterinary Pathobiology, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Jean-Pierre Baudoin
- IRD, AP-HM, IHU Méditerranée Infection, MEPHI, Aix Marseille Univ, Marseille, France.,Assistance Publique-Hopitaux de Marseille, Hopital Timone, Marseille, France
| | - Jean-Christophe Lagier
- IRD, AP-HM, IHU Méditerranée Infection, MEPHI, Aix Marseille Univ, Marseille, France.,Assistance Publique-Hopitaux de Marseille, Hopital Timone, Marseille, France
| | - Virginie Monnet-Corti
- IRD, AP-HM, IHU Méditerranée Infection, MEPHI, Aix Marseille Univ, Marseille, France.,Assistance Publique-Hopitaux de Marseille, Hopital Timone, Marseille, France.,Faculté des Sciences Médicales et Paramédicales, Ecole de Médecine Dentaire, Aix Marseille Univ, Marseille, France
| | - Bernard La Scola
- IRD, AP-HM, IHU Méditerranée Infection, MEPHI, Aix Marseille Univ, Marseille, France.,Assistance Publique-Hopitaux de Marseille, Hopital Timone, Marseille, France
| | - Angéline Antezack
- IRD, AP-HM, IHU Méditerranée Infection, MEPHI, Aix Marseille Univ, Marseille, France.,Assistance Publique-Hopitaux de Marseille, Hopital Timone, Marseille, France.,Faculté des Sciences Médicales et Paramédicales, Ecole de Médecine Dentaire, Aix Marseille Univ, Marseille, France
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Romário-Silva D, Alencar SM, Bueno-Silva B, Sardi JDCO, Franchin M, de Carvalho RDP, Ferreira TEDSA, Rosalen PL. Antimicrobial Activity of Honey against Oral Microorganisms: Current Reality, Methodological Challenges and Solutions. Microorganisms 2022; 10:microorganisms10122325. [PMID: 36557578 PMCID: PMC9781356 DOI: 10.3390/microorganisms10122325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/10/2022] [Accepted: 11/22/2022] [Indexed: 11/25/2022] Open
Abstract
Honey has been shown to have antimicrobial activity against different microorganisms, but its effects on oral biofilms are largely unknown. In this review, we analyzed the currently available literature on the antimicrobial activity of honey against oral biofilms in order to determine its potential as a functional food in the treatment and/or prevention of oral diseases. Here, we compare studies reporting on the antimicrobial activity of honey against systemic and oral bacteria, discuss methodological strategies, and point out current gaps in the literature. To date, there are no consistent studies supporting the use of honey as a therapy for oral diseases of bacterial origin, but current evidence in the field is promising. The lack of studies examining the antibiofilm activity of honey against oral microorganisms reveals a need for additional research to better define aspects such as chemical composition, the mechanism(s) of action, and antimicrobial action.
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Affiliation(s)
- Diego Romário-Silva
- Department of Biosciences, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba 13414-903, Brazil
- Research Program in Integrated Dental Sciences, University of Cuiabá, Cuiabá 78065-900, Brazil
| | - Severino Matias Alencar
- Department of Agri-Food Industry, Food and Nutrition, Luiz de Queiroz College of Agriculture (Escola Superior de Agricultura “Luiz de Queiroz”—ESALQ), University of São Paulo, Piracicaba 13418-900, Brazil
| | - Bruno Bueno-Silva
- Dental Research Division, Guarulhos University, Guarulhos 07023-070, Brazil
| | - Janaína de Cássia Orlandi Sardi
- Research Program in Integrated Dental Sciences, University of Cuiabá, Cuiabá 78065-900, Brazil
- Dental Research Division, Guarulhos University, Guarulhos 07023-070, Brazil
| | - Marcelo Franchin
- School of Dentistry, Federal University of Alfenas (Unifal-MG), Alfenas 37130-001, Brazil
- Correspondence: (M.F.); (P.L.R.)
| | | | - Thayná Ellen de Sousa Alves Ferreira
- Department of Biosciences, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba 13414-903, Brazil
- Research Program in Integrated Dental Sciences, University of Cuiabá, Cuiabá 78065-900, Brazil
| | - Pedro Luiz Rosalen
- Department of Biosciences, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba 13414-903, Brazil
- Biological Sciences Graduate Program, Federal University of Alfenas (Unifal-MG), Alfenas 37130-001, Brazil
- Correspondence: (M.F.); (P.L.R.)
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Abstract
Frequently, periodontal health and it's associated oral biofilm has not been addressed in those patients who have systemic health issues, especially those who are not responding to medical treatment via their physician. Oral biofilm may be present in the periodontal sulcus in the absence of clinical disease of periodontal disease (bleeding on probing, gingival inflammation) and periodontal reaction is dependent on the patient's immune response to the associated bacterial and their byproducts. Increasing evidence has been emerging the past decade connecting oral biofilm with systemic conditions, either initiating them or complicating those medical conditions. The patient's health needs to be thought of as a whole-body system with connections that may originate in the oral cavity and have distant affects throughout the body. To maximize total health, a coordination in healthcare needs to be a symbiosis between the physician and dentist to eliminate the oral biofilm and aid in prevention of systemic disease or minimize those effects to improve the patient's overall health and quality of life. Various areas of systemic health have been associated with the bacteria and their byproducts in the oral biofilm. Those include cardiovascular disease, chronic kidney disease, diabetes, pulmonary disease, prostate cancer, colon cancer, pancreatic cancer, pre-term pregnancy, erectile dysfunction Alzheimer's disease and Rheumatoid arthritis. This article will discuss oral biofilm, its affects systemically and review the medical conditions associated with the oral systemic connection with an extensive review of the literature.
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Affiliation(s)
| | - Robert A. Horowitz
- Private periodontal practice Scarsdale, New York, USA
- Adjunct Clinical Assistant Professor, Department of Periodontology and Implant Dentistry, New York University College of Dentistry
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NAUREEN ZAKIRA, MEDORI MARIACHIARA, DHULI KRISTJANA, DONATO KEVIN, CONNELLY STEPHENTHADDEUS, BELLINATO FRANCESCO, GISONDI PAOLO, BERTELLI MATTEO. Polyphenols and Lactobacillus reuteri in oral health. JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE 2022; 63:E246-E254. [PMID: 36479495 PMCID: PMC9710395 DOI: 10.15167/2421-4248/jpmh2022.63.2s3.2767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Oral health is one of the necessary preludes to the overall quality of life. Several medical procedures and therapies are available to treat oral diseases in general and periodontal diseases in particular, yet caries, periodontitis, oral cancer, and oral infections remain a global concern. Natural molecules, with their anti-oxidant, anti-inflammatory, and anti-microbic properties, are one of the main sources of oral health and dental health care, and should be supplemented to exploit their beneficial effects. A possible way to improve the intake of these molecules is adhering to a diet that is rich in fruits, vegetables, and probiotics, which has many beneficial properties and can improve overall health and wellbeing. The Mediterranean diet, in particular, provides several beneficial natural molecules, mainly because of the precious nutrients contained in its typical ingredients, mainly plant-based (olives, wine, citrus fruits, and many more). Its beneficial effects on several diseases and in increasing the overall wellbeing of the population are currently being studied by physicians. Among its nutrients, polyphenols (including, among other molecules, lignans, tannins, and flavonoids) seem to be of outmost importance: several studies showed their anticariogenic properties, as well as their effects in decreasing the incidence of non-communicable diseases. Therefore, plant-derived molecules - such as polyphenols - and probiotics - such as Lactobacillus reuteri - have shown a significant potential in treating and curing oral diseases, either alone or in combination, owing to their antioxidant and antimicrobial properties, respectively.
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Affiliation(s)
| | | | - KRISTJANA DHULI
- MAGI’S LAB, Rovereto (TN), Italy
- Correspondence: Kristjana Dhuli, MAGI’S LAB, Rovereto (TN), 38068, Italy; E-mail:
| | | | | | - FRANCESCO BELLINATO
- Section of Dermatology and Venereology, Department of Medicine, University of Verona, Verona, Italy
| | - PAOLO GISONDI
- Section of Dermatology and Venereology, Department of Medicine, University of Verona, Verona, Italy
| | - MATTEO BERTELLI
- MAGI Euregio, Bolzano, Italy
- MAGI’S LAB, Rovereto (TN), Italy
- MAGISNAT, Peachtree Corners (GA), USA
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35
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Luong AD, Buzid A, Luong JHT. Important Roles and Potential Uses of Natural and Synthetic Antimicrobial Peptides (AMPs) in Oral Diseases: Cavity, Periodontal Disease, and Thrush. J Funct Biomater 2022; 13:jfb13040175. [PMID: 36278644 PMCID: PMC9589978 DOI: 10.3390/jfb13040175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 01/10/2023] Open
Abstract
Numerous epithelial cells and sometimes leukocytes release AMPs as their first line of defense. AMPs encompass cationic histatins, defensins, and cathelicidin to encounter oral pathogens with minimal resistance. However, their concentrations are significantly below the effective levels and AMPs are unstable under physiological conditions due to proteolysis, acid hydrolysis, and salt effects. In parallel to a search for more effective AMPs from natural sources, considerable efforts have focused on synthetic stable and low-cytotoxicy AMPs with significant activities against microorganisms. Using natural AMP templates, various attempts have been used to synthesize sAMPs with different charges, hydrophobicity, chain length, amino acid sequence, and amphipathicity. Thus far, sAMPs have been designed to target Streptococcus mutans and other common oral pathogens. Apart from sAMPs with antifungal activities against Candida albicans, future endeavors should focus on sAMPs with capabilities to promote remineralization and antibacterial adhesion. Delivery systems using nanomaterials and biomolecules are promising to stabilize, reduce cytotoxicity, and improve the antimicrobial activities of AMPs against oral pathogens. Nanostructured AMPs will soon become a viable alternative to antibiotics due to their antimicrobial mechanisms, broad-spectrum antimicrobial activity, low drug residue, and ease of synthesis and modification.
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Affiliation(s)
- Albert Donald Luong
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University of Buffalo, Buffalo, NY 14215, USA
| | - Alyah Buzid
- Department of Chemistry, College of Science, King Faisal University, P.O. Box 380, Al-Ahsa 31982, Saudi Arabia
| | - John H. T. Luong
- School of Chemistry and Analytical & Biological Chemistry Research Facility (ABCRF), University College Cork, College Road, T12 YN60 Cork, Ireland
- Correspondence: or
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Sultana S, Parvin R, Parvin MS, Islam MT, Bari ASM, Chowdhury EH. Prevalence of Methicillin and β−Lactamase Resistant Pathogens Associated with Oral and Periodontal Disease of Children in Mymensingh, Bangladesh. Pathogens 2022; 11:pathogens11080890. [PMID: 36015011 PMCID: PMC9414569 DOI: 10.3390/pathogens11080890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/31/2022] [Accepted: 08/02/2022] [Indexed: 11/16/2022] Open
Abstract
Oral and periodontal diseases (OPD) is considered one of the main problems of dentistry worldwide. This study aimed to estimate the prevalence of oral and periodontal pathogenic bacteria along with their antimicrobial resistance pattern in 131 children patients aged between 4–10 years who attended in Mymensingh Medical College Hospital during October 2019 to March 2020. OPD pathogens were identified through isolation, cultural and biochemical properties, and nucleic acid detection. The isolates were subjected to antimicrobial susceptibility to 12 antibiotics commonly used in dentistry. In addition, the isolates were analyzed molecularly for the presence of six virulence and three antibacterial resistance genes. Five pathogens were identified, of which Staphylococcus aureus (S. aureus) (49%) and S. salivarius (46%) were noticed frequently; other bacteria included S. mutans (16.8%), S. sobrinus (0.8%) and L. fermentum (13.7%). The virulence genes—clumping factor A (clfA) was detected in 62.5% isolates of S. aureus, and gelatinase enzyme E (gelE) gene was detected in 5% isolates of S. salivarius, while other virulence genes were not detected. All the tested isolates were multidrug-resistant. The overall prevalence of MDR S. aureus, Streptococcus spp. and L. fermentum was 92.2%, 95.1% and 100%, respectively. It was observed that a high proportion of isolates were found resistant to 5–8 antibiotics. A majority of S. aureus, Streptococcus spp., and L. fermentum isolates tested positive for the β−lactamase resistance genes blaTEM and cfxA, as well as the methicillin resistance gene mecA. Phylogenetically, the resistance genes showed variable genetic character among Bangladeshi bacterial pathogens. In conclusion, S. aureus and S. salivarius were major OPD pathogens in patients attended in Mymensingh Medical College Hospital of Bangladesh, and most were Beta-lactam and methicillin resistant.
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Affiliation(s)
- Sharmin Sultana
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Rokshana Parvin
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mst. Sonia Parvin
- Population Medicine and AMR Laboratory, Department of Medicine, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Md. Taohidul Islam
- Population Medicine and AMR Laboratory, Department of Medicine, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Abu Saleh Mahfuzul Bari
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Emdadul Haque Chowdhury
- Department of Pathology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
- Correspondence:
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He I, Smart G, Poirier BF, Sethi S, Jensen ED. An update on dental caries in children with type 1 diabetes mellitus. PEDIATRIC DENTAL JOURNAL 2022. [DOI: 10.1016/j.pdj.2022.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Strategies to Combat Caries by Maintaining the Integrity of Biofilm and Homeostasis during the Rapid Phase of Supragingival Plaque Formation. Antibiotics (Basel) 2022; 11:antibiotics11070880. [PMID: 35884135 PMCID: PMC9312143 DOI: 10.3390/antibiotics11070880] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 02/06/2023] Open
Abstract
Bacteria in the oral cavity, including commensals and opportunistic pathogens, are organized into highly specialized sessile communities, coexisting in homeostasis with the host under healthy conditions. A dysbiotic environment during biofilm evolution, however, allows opportunistic pathogens to become the dominant species at caries-affected sites at the expense of health-associated taxa. Combining tooth brushing with dentifrices or rinses combat the onset of caries by partially removes plaque, but resulting in the biofilm remaining in an immature state with undesirables’ consequences on homeostasis and oral ecosystem. This leads to the need for therapeutic pathways that focus on preserving balance in the oral microbiota and applying strategies to combat caries by maintaining biofilm integrity and homeostasis during the rapid phase of supragingival plaque formation. Adhesion, nutrition, and communication are fundamental in this phase in which the bacteria that have survived these adverse conditions rebuild and reorganize the biofilm, and are considered targets for designing preventive strategies to guide the biofilm towards a composition compatible with health. The present review summarizes the most important advances and future prospects for therapies based on the maintenance of biofilm integrity and homeostasis as a preventive measure of dysbiosis focused on these three key factors during the rapid phase of plaque formation.
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Mulimani P, Popowics T. Effect of Orthodontic Appliances on the Oral Environment and Microbiome. FRONTIERS IN DENTAL MEDICINE 2022. [DOI: 10.3389/fdmed.2022.924835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Orthodontic treatment is an appliance-intensive endeavor, where an array of mechanical devices is used to bring about tooth movement. By virtue of remaining in close proximity to the enamel, gingiva and periodontal ligament intra-orally over a prolonged period of time, orthodontic appliances have a significant impact on the paradental tissues, oral environment and oral microbiome. Orthodontic appliances by acting as anchors for biofilm and plaque formation, accumulate bacteria and other micro-organisms in amounts unfavorable for maintenance of healthy equilibrium. The resulting loss of balance in the oral microbiome causes dysbiosis which manifests clinically as increased enamel demineralization, dental caries and periodontal disease. Mechanical removal of the accumulated plaque by maintaining rigorous oral hygiene has been proven to be the single most important factor to mitigate the harmful effects of dysbiosis. This review investigates how each of the various components of the orthodontic appliances, different types of appliances and unique surface properties of biomaterials have contributory effects at the interface of orthodontic biomaterials and oral biology. The information thus obtained will be critical in instituting the best diagnostic and therapeutic measures at the clinical level. It will also be instrumental in devising improvements and providing new directions for future research in general and precision orthodontics in particular.
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40
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Weller J, Vasudevan P, Kreikemeyer B, Ekat K, Jackszis M, Springer A, Chatzivasileiou K, Lang H. The role of bacterial corrosion on recolonization of titanium implant surfaces: An in vitro study. Clin Implant Dent Relat Res 2022; 24:664-675. [PMID: 35709098 DOI: 10.1111/cid.13114] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 05/27/2022] [Accepted: 05/28/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Inflammation triggered by bacterial biofilms in the surrounding tissue is a major etiological factor for peri-implantitis and subsequent implant failure. However, little is known about the direct effects of bacterial corrosion and recolonization on implant failure PURPOSE: To investigate the influence of oral commensals on bacterial corrosion and recolonization of titanium surfaces. MATERIALS AND METHODS Streptococcus sanguinis (S. sanguinis) and Porphyromonas gingivalis (P. gingivalis), which are key bacteria in oral biofilm formation, were cultured on commercially pure titanium and titanium-aluminum-vanadium (Ti6Al4V) plates in artificial saliva/brain heart infusion medium under aerobic or anaerobic conditions. Biofilm formation was examined after 7 and 21 days by crystal violet and live/dead staining. Titanium ions released into culture supernatants were analyzed over a period of 21 days by atomic absorption spectrometry. Visual changes in surface morphology were investigated using scanning electron microscopy. Biofilm formation on sterilized, biocorroded, and recolonized implant surfaces was determined by crystal violet staining. RESULTS S. sanguinis and P. gingivalis formed stable biofilms on the titanium samples. Bacterial corrosion led to a significant increase in titanium ion release from these titanium plates (p < 0.01), which was significantly higher under aerobic conditions on pure titanium (p ≤ 0.001). No obvious morphological surface changes, such as pitting and discoloration, were detected in the titanium samples. During early biofilm formation, the addition of titanium ions significantly decreased the number of live cells. In contrast, a significant effect on biofilm mass was only detected with P. gingivalis. Bacterial corrosion had no influence on bacterial recolonization following sterilization of titanium and Ti6Al4V surfaces. CONCLUSION Bacterial corrosion differs between oral commensal bacteria and leads to increased titanium ion release from titanium plates. The titanium ion release did not influence biofilm formation or bacterial recolonization under in vitro conditions.
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Affiliation(s)
- Julia Weller
- Department of Operative Dentistry and Periodontology, University Medical Center Rostock, Rostock, Germany
| | - Praveen Vasudevan
- Department of Operative Dentistry and Periodontology, University Medical Center Rostock, Rostock, Germany
| | - Bernd Kreikemeyer
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Rostock, Rostock, Germany
| | - Katharina Ekat
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Rostock, Rostock, Germany
| | - Mario Jackszis
- Biomechanics and Implant Technology Research Laboratory, Department of Orthopaedics, University Medical Center Rostock, Rostock, Germany
| | - Armin Springer
- Medical Biology and Electron Microscopy Centre, Medical Faculty, University of Rostock, Rostock, Germany
| | - Kyriaki Chatzivasileiou
- Department of Operative Dentistry and Periodontology, University Medical Center Rostock, Rostock, Germany
| | - Hermann Lang
- Department of Operative Dentistry and Periodontology, University Medical Center Rostock, Rostock, Germany
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Shi J, Wang Q, Ruan G, Chen Y, Zhao M, Shi D, Pan B, Xu Z, Zhang T, Wang F, Xu C. Efficacy of probiotics against dental caries in children: a systematic review and meta-analysis. Crit Rev Food Sci Nutr 2022; 63:9977-9994. [PMID: 35607893 DOI: 10.1080/10408398.2022.2077693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Dental caries causes serious consequences and the financial burden of society especially in children with high morbidity rate. Here we carried out a meta-analysis to systematically evaluate the efficacy of probiotics against dental caries in children. Forty-three RCTs were eligible for this meta-analysis after searching the PubMed, Cochrane and Web of Science from the inception through October 2021. Pooled estimates demonstrated that treatment with probiotics significantly reduced noncavitated (dicdas2-6mft) (SMD = -0.18, 95% CI: -0.3 to -0.06, p = 0.002) and cavitated (dicdas5-6mft) carious lesions in children (SMD = -0.32, 95% CI: -0.5 to 0.14, p = 0.0004). Probiotics also reduced prevalence of noncavitated (dicdas2-6mft) carious lesions (RR = 0.8, 95% CI: 0.67 to-0.97, p = 0.02). Salivary Streptococcus mutans was declined after intervention (SMD = -1.17, 95% CI: -1.85 to -0.5, p = 0.0007), while Lactobacillus counts were upregulated (SMD = 1.19, 95% CI: 0.46-1.92, p = 0.001). However, no significant effects in total bacteria counts and salivary pH were observed. Our findings suggest that probiotics especially Lactobacillus could be a promising therapeutic strategy for clinical applications in children dental caries.
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Affiliation(s)
- Jiangmin Shi
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qinjian Wang
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Gaoyi Ruan
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yaoxuan Chen
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Min Zhao
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Dibang Shi
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Binhui Pan
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhihua Xu
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Tiaotiao Zhang
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Fangyan Wang
- Department of Pathophysiology, School of Basic Medicine Science, Wenzhou Medical University, Wenzhou, China
| | - Changlong Xu
- Department of Gastroenterology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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Choi JH, Jung EH, Leea ES, Jung HI, Kim BI. Anti-biofilm activity of chlorhexidine-releasing elastomerics against dental microcosm biofilms. J Dent 2022; 122:104153. [DOI: 10.1016/j.jdent.2022.104153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 04/06/2022] [Accepted: 05/04/2022] [Indexed: 10/18/2022] Open
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Kasagaki S, Hashimoto M, Maeda S. Subminimal inhibitory concentrations of ampicillin and mechanical stimuli cooperatively promote cell-to-cell plasmid transformation in Escherichia coli. CURRENT RESEARCH IN MICROBIAL SCIENCES 2022; 3:100130. [PMID: 35909620 PMCID: PMC9325862 DOI: 10.1016/j.crmicr.2022.100130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Low concentrations of ampicillin promote horizontal plasmid transfer in E. coli. Mechanical stimuli also promote horizontal plasmid transfer in E. coli. Those two kinds of stimuli cooperatively promote plasmid transfer. This plasmid transfer occurs via the cell-to-cell transformation mechanism. This transformation occurs between biofilm cells under flexible conditions.
Horizontal gene transfer (HGT) is a bacterial evolution tool for improved survival. Although several environmental stimuli induce or promote HGT, the diversity and complexity of the environmental factors have not been sufficiently elucidated. In this study, we showed that the biofilm culture of Escherichia coli at the air–solid interface in the presence of a subminimal inhibitory concentration (sub-MIC) of ampicillin (∼0.5–4 µg/mL) and subsequent mechanical stimulation (rolling small glass balls, ø = 5–8 mm) cooperatively promoted horizontal plasmid transfer without the usual competence-inducing conditions. Either of the two treatments promoted plasmid transfer at a lower frequency than when the treatments were combined. The effect of several parameters on the two treatments was tested and then optimized, achieving a high frequency of plasmid transfer (up to 10−6 per cell) under optimal conditions. Plasmid transfer was DNase-sensitive for both treatments, demonstrating its mechanism of transformation. Plasmid transfer occurred using various E. coli strains, plasmids, ball materials, shaking conditions, and even the mechanical stimulation of brushing the biofilm with a toothbrush, indicating the conditional flexibility of this phenomenon. This is the first demonstration of the promoting effect of the combination of a sub-MIC antibiotic and mechanical stimulation on horizontal plasmid transfer between E. coli cells via transformation. Regarding environmental bacterial physiology, the aggregations or biofilms of bacterial cells may encounter both sub-MIC antibiotics and mechanical stimuli in some specific environments, therefore, this type of HGT could also occur naturally.
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Interfacial Biomaterial-Dentin Bacterial Biofilm Proliferation and Viability Is Affected by the Material, Aging Media and Period. Dent J (Basel) 2022; 10:dj10030033. [PMID: 35323235 PMCID: PMC8947710 DOI: 10.3390/dj10030033] [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: 11/15/2021] [Revised: 02/09/2022] [Accepted: 02/16/2022] [Indexed: 11/16/2022] Open
Abstract
Biomaterial−dentin interfaces undergo degradation over time, allowing salivary, tissue fluid, and bacterial movement between the root filling or restoration and dentin. This study aims to investigate the effect of aging in simulated human salivary/bacterial/blood esterases (SHSE) on proliferation and viability of Enterococcus faecalis biofilm within the dentin interface with four materials used to fill/restore the endodontic space. Root canals of human anterior teeth were prepared and filled with gutta-percha and one of the following: self-cured resin composite (BisfilTM 2B, Bisco, Schaumburg, IL, USA) with either self-etch (SE) (EasyBond) or total-etch (TE) (ScotchbondTM, 3M, Saint Paul, MN, USA) methacrylate-based adhesives, epoxy-resin sealer (AH Plus®, Dentsply Sirona, York, PA, USA), or bioceramic sealer (EndoSequence® BC Sealer™, Brasseler USA, Savannah, GA, USA). Specimens were aged in SHSE or phosphate-buffered saline (PBS) for up to 360 days, followed by cultivation of steady-state E. faecalis biofilm. Depth and viability of interfacial bacterial biofilm proliferation were assessed by confocal laser scanning microscopy and live/dead staining. Data were analyzed using three-way ANOVA and Scheffe’s post hoc analyses. Initial depths of biofilm proliferation were similar among material groups (p > 0.05). All groups showed significantly deeper biofilm proliferation with increased aging period (p < 0.05). SHSE aging increased interfacial biofilm depth for TE, SE and BC (p < 0.05) but not AH. For unaged interfaces, BC exhibited the lowest ratio of live bacteria, followed by AH, TE, and SE (p < 0.05). Interfacial bacterial biofilm proliferation and viability were dependent on the biomaterial, aging media, and period.
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Abstract
Biofilm community development has been established as a sequential process starting from the attachment of single cells on a surface. However, microorganisms are often found as aggregates in the environment and in biological fluids. Here, we conduct a comprehensive analysis of the native structure and composition of aggregated microbial assemblages in human saliva and investigate their spatiotemporal attachment and biofilm community development. Using multiscale imaging, cell sorting, and computational approaches combined with sequencing analysis, a diverse mixture of aggregates varying in size, structure, and microbial composition, including bacteria associated with host epithelial cells, can be found in saliva in addition to a few single-cell forms. Phylogenetic analysis reveals a mixture of complex consortia of aerobes and anaerobes in which bacteria traditionally considered early and late colonizers are found mixed together. When individually tracked during colonization and biofilm initiation, aggregates rapidly proliferate and expand tridimensionally, modulating population growth, spatial organization, and community scaffolding. In contrast, most single cells remain static or are incorporated by actively growing aggregates. These results suggest an alternative biofilm development process whereby aggregates containing different species or associated with human cells collectively adhere to the surface as “growth nuclei” to build the biofilm and shape polymicrobial communities at various spatial and taxonomic scales.
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Evaluation of 12-hour in situ bacterial colonization on smooth restorative material surfaces. J Dent 2022; 119:104071. [DOI: 10.1016/j.jdent.2022.104071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/13/2022] [Accepted: 02/17/2022] [Indexed: 12/26/2022] Open
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Marin LM, Xiao Y, Cury JA, Siqueira WL. Modulation of Streptococcus mutans Adherence to Hydroxyapatite by Engineered Salivary Peptides. Microorganisms 2022; 10:microorganisms10020223. [PMID: 35208678 PMCID: PMC8875007 DOI: 10.3390/microorganisms10020223] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/16/2022] [Accepted: 01/18/2022] [Indexed: 11/23/2022] Open
Abstract
Since the modification of the proteinaceous components of the Acquired Enamel Pellicle (AEP) could influence the adhesion of Streptococcus mutans, the most cariogenic bacteria, to dental surfaces, we assessed if engineered salivary peptides would affect the adherence and modulate the bacterial proteome upon adherence. Single-component AEPs were formed onto hydroxyapatite (HAp) discs by incubating them with statherin, histatin-3, DR9, DR9-DR9, DR9-RR14, RR14, and parotid saliva. Then, the discs were inoculated with S. mutans UA159 and the bacteria were allowed to adhere for 2 h, 4 h, and 8 h (n = 12/treatment/time point). The number of bacteria adhered to the HAp discs was determined at each time point and analyzed by two-way ANOVA and Bonferroni tests. Cell-wall proteins were extracted from adhered, planktonic, and inoculum (baseline) bacteria and proteome profiles were obtained after a bottom-up proteomics approach. The number of adhered bacteria significantly increased over time, being the mean values obtained at 8 h, from highest to lowest, as follows: DR9-RR14 > statherin > RR14 = DR9-DR9 > DR9 = histatin3 > saliva (p < 0.05). Treatments modulated the bacterial proteome upon adherence. The findings suggested a potential use of our engineered peptide DR9-DR9 to control S. mutans biofilm development by reducing bacterial colonization.
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Affiliation(s)
- Lina Maria Marin
- College of Dentistry, University of Saskatchewan, Saskatoon, SK S7N 5E4, Canada;
| | - Yizhi Xiao
- Schulich School of Dentistry, The University of Western Ontario, London, ON N6A 5C1, Canada;
| | - Jaime Aparecido Cury
- Piracicaba Dental School, University of Campinas, Piracicaba CEP 13414-903, Brazil;
| | - Walter Luiz Siqueira
- College of Dentistry, University of Saskatchewan, Saskatoon, SK S7N 5E4, Canada;
- Correspondence:
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Mosayebi N, Toodehzaeim MH, Zandi H, Joshan N, Haerian A. Evaluation of the effects of fluoride mouth rinse and varnish on the early biofilm formation of Streptococcus mutans in two types of orthodontic adhesive resins: An in vitro study. Dent Res J (Isfahan) 2022. [DOI: 10.4103/1735-3327.351343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Levy FM, Braga AS, Pelá VT, Lavender S, Zhang D, Pilch S, Malheiros Z, Stewart B, Magalhães AC, Buzalaf MAR. Characterization of white spot lesions formed on human enamel under microcosm biofilm for different experimental periods. J Appl Oral Sci 2022; 30:e20210560. [PMID: 35384988 PMCID: PMC8983036 DOI: 10.1590/1678-7757-2021-0560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 01/20/2022] [Indexed: 12/02/2022] Open
Abstract
The initial characteristics of white spot lesion (WSLs), such as the degree of integrated mineral loss (ΔZ), depth and pattern of mineral distribution, have an impact on further demineralization and remineralization. However, these lesion parameters have not been evaluated in WSLs produced from microcosm biofilms.
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Mishra P, Abikshyeet P, Bhuyan L, Kumar V, Mahapatra N, Adhikary T. Probiotics: Dawn of a new era in dental caries management. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2022; 14:S34-S38. [PMID: 36110745 PMCID: PMC9469361 DOI: 10.4103/jpbs.jpbs_801_21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/19/2021] [Accepted: 01/05/2022] [Indexed: 11/04/2022] Open
Abstract
Dental caries is considered to be the most common pathology of the oral cavity. The pathogenesis of dental carries is believed to be because of imbalance in the microbiological niche creating an ecological pressure. Probiotics are living microorganisms which when dispensed in appropriate amounts can benefit the health of the host. They have posed as a promising replacement to antibiotics that can aid in solving dental issues like dental caries. There are numerous Randomized control trials to validate this fact. There are also various modes through which a probiotic can be delivered against dental caries. Numerous new avenues like effector strains and synbiotics are also explored nowadays. The present review is about the significance of probiotics in the management of dental caries.
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