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Veras EL, Castro dos Santos N, Souza JGS, Figueiredo LC, Retamal-Valdes B, Barão VAR, Shibli J, Bertolini M, Faveri M, Teles F, Duarte P, Feres M. Newly identified pathogens in periodontitis: evidence from an association and an elimination study. J Oral Microbiol 2023; 15:2213111. [PMID: 37261036 PMCID: PMC10228317 DOI: 10.1080/20002297.2023.2213111] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 06/02/2023] Open
Abstract
We assessed the level of evidence for the presence of new periodontal pathogens by (i) comparing the occurrence of non-classical periodontal taxa between healthy vs. periodontitis patients (Association study); (ii) assessing the modifications in the prevalence and levels of these species after treatments (Elimination study). In the Association study, we compared the prevalence and levels of 39 novel bacterial species between periodontally healthy and periodontitis patients. In the Elimination study, we analyzed samples from periodontitis patients assigned to receive scaling and root planing alone or with metronidazole+ amoxicillin TID/ 14 days. Levels of 79 bacterial species (39 novel and 40 classic) were assessed at baseline, 3 and 12 months post-therapy. All samples were analyzed using Checkerboard DNA-DNA hybridization. Out of the 39 novel species evaluated, eight were categorized as having strong and four as having moderate association with periodontitis. Our findings suggest strong evidence supporting Lancefieldella rimae, Cronobacter sakazakii, Pluralibacter gergoviae, Enterococcus faecalis, Eubacterium limosum, Filifactor alocis, Haemophilus influenzae, and Staphylococcus warneri, and moderate evidence supporting Escherichia coli, Fusobacterium necrophorum, Spiroplasma ixodetis, and Staphylococcus aureus as periodontal pathogens. These findings contribute to a better understanding of the etiology of periodontitis and may guide future diagnostic and interventional studies.
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Affiliation(s)
- Eduardo Lobão Veras
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Nídia Castro dos Santos
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
- The Forsyth Institute, Cambridge, MA, USA
| | - João Gabriel S. Souza
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
- Department of Dental Research, Dental Science School (Faculdade de Ciências Odontológicas - FCO), Montes Claros, Brazil
| | - Luciene C. Figueiredo
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Belen Retamal-Valdes
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Valentim A. R. Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Jamil Shibli
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Martinna Bertolini
- Department of Periodontics and Preventive Dentistry, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Marcelo Faveri
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Flavia Teles
- Center for Innovation & Precision Dentistry, School of Dental Medicine, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Poliana Duarte
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Boston, MA, USA
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2
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Mendes SDNC, Esteves CM, Mendes JAV, Feres M, Figueiredo N, de Miranda TS, Shibli JA, Figueiredo LC. Systemic Antibiotics and Chlorhexidine Associated with Periodontal Therapy: Microbiological Effect on Intraoral Surfaces and Saliva. Antibiotics (Basel) 2023; 12:antibiotics12050847. [PMID: 37237750 DOI: 10.3390/antibiotics12050847] [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: 03/14/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
The effect of systemic antibiotics on the microbial profile of extracrevicular sites after periodontal treatment is currently the subject of research. This study evaluated the microbiological effects on different oral cavity sites of scaling and root planing (SRP) combined with antimicrobial chemical control in the treatment of periodontitis. Sixty subjects were randomly assigned to receive SRP alone or combined with metronidazole (MTZ) + amoxicillin (AMX) for 14 days, with or without chlorhexidine mouth rinse (CHX) for 60 days. Microbiological samples were evaluated by checkerboard DNA-DNA hybridization until 180 days post therapy. The adjunctive use of antibiotics plus CHX significantly reduced the mean proportions of red complex species from subgingival biofilm and saliva (p < 0.05). Furthermore, the analysis of all intraoral niches showed a significantly lower mean proportion of the red complex species in the same group. In conclusion, the concomitant use of antimicrobial chemical control (systemic and local) demonstrated a beneficial effect on the composition of the oral microbiota.
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Affiliation(s)
- Stella de Noronha Campos Mendes
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos 07090-023, SP, Brazil
- Department of Dentistry, Federal University of Piaui, Teresina 64049-550, PI, Brazil
| | - Camila Machado Esteves
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos 07090-023, SP, Brazil
| | | | - Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos 07090-023, SP, Brazil
- Department of Oral Medicine, Infection, and Immunity, Division of Periodontology, Harvard School of Dental Medicine, Boston, MA 02115, USA
| | - Nathalia Figueiredo
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos 07090-023, SP, Brazil
| | | | - Jamil Awad Shibli
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos 07090-023, SP, Brazil
| | - Luciene Cristina Figueiredo
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos 07090-023, SP, Brazil
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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] [Received: 06/03/2022] [Accepted: 03/28/2023] [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
| | - 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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Rodríguez-Hernández AP, Vega-Jiménez AL, Vázquez-Olmos AR, Ortega-Maldonado M, Ximenez-Fyvie LA. Antibacterial Properties In Vitro of Magnesium Oxide Nanoparticles for Dental Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:502. [PMID: 36770464 PMCID: PMC9921384 DOI: 10.3390/nano13030502] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/11/2023] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
(1) Dental caries, periodontitis, or peri-implantitis are commensal infections related to oral biofilm former bacteria. Likewise, magnesium oxide nanoparticles (MgO-NPs) were studied to introduce them to the antibacterial properties of a few microorganisms. Considering this, the purpose of the present investigation was to determine the antibacterial properties of MgO-NPs on representative oral strains. (2) Methods: MgO-NPs with a cubic crystal structure were obtained by magnesium hydroxide mechanical activation. After synthesis, the MgO-NPs product was annealed at 800 °C (2 h). The MgO-NPs obtained were tested against ten oral ATCC strains at ten serial concentrations (1:1 20.0-0.039 mg/mL per triplicate) using the micro-broth dilution method to determine the minimal inhibitory concentration (MIC) or minimal bactericidal concentration (MIB). Measures of OD595 were compared against each positive control with a Student's t-test. Viability was corroborated by colony-forming units. (3) Results: The polycrystalline structure had an average size of 21 nm as determined by X-ray diffraction and transmission electron microscopy (high resolution). Antimicrobial sensitivity was observed in Capnocytophaga gingivalis (MIB/MIC 10-5 mg/mL), Eikenella corrodens (MIB 10 mg/mL), and Streptococcus sanguinis (MIB 20 mg/mL) at high concentrations of the MgO-NPs and at lower concentrations of the MgO-NPs in Actinomyces israelii (MIB 0.039 mg/mL), Fusobacterium nucleatum subsp. nucleatum (MIB/MIC 5-2.5 mg/mL), Porphyromonas gingivalis (MIB 20 mg/mL/MIC 2.5 mg/mL), Prevotella intermedia (MIB 0.625 mg/mL), Staphylococcus aureus (MIC 2.5 mg/mL), Streptococcus mutans (MIB 20 mg/mL/MIC 0.321 mg/mL), and Streptococcus sobrinus (MIB/MIC 5-2.5 mg/mL). (4) Conclusions: The MgO-NPs' reported antibacterial properties in all oral biofilm strains were evaluated for potential use in dental applications.
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Affiliation(s)
- Adriana-Patricia Rodríguez-Hernández
- Laboratorio de Genética Molecular, División de Estudios de Posgrado e Investigación de la Facultad de Odontología, Universidad Nacional Autónoma de México (UNAM), Ciudad de México 04510, Mexico
| | - Alejandro L. Vega-Jiménez
- Laboratorio de Bioingeniería de Tejidos, División de Estudios de Posgrado e Investigación de la Facultad de Odontología, Universidad Nacional Autónoma de México (UNAM), Ciudad de México 04510, Mexico
| | - América R. Vázquez-Olmos
- Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México (UNAM), Ciudad de México 04510, Mexico
| | - Miriam Ortega-Maldonado
- Laboratorio de Bioingeniería de Tejidos, División de Estudios de Posgrado e Investigación de la Facultad de Odontología, Universidad Nacional Autónoma de México (UNAM), Ciudad de México 04510, Mexico
| | - Laurie-Ann Ximenez-Fyvie
- Laboratorio de Genética Molecular, División de Estudios de Posgrado e Investigación de la Facultad de Odontología, Universidad Nacional Autónoma de México (UNAM), Ciudad de México 04510, Mexico
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5
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Faveri M, Retamal-Valdes B, Mestnik MJ, de Figueiredo LC, Barão VAR, Souza JGS, Duarte PM, Feres M. Microbiological effects of amoxicillin plus metronidazole in the treatment of young patients with Stages III and IV periodontitis: A secondary analysis from a 1-year double-blinded placebo-controlled randomized clinical trial. J Periodontol 2022; 94:498-508. [PMID: 35869939 DOI: 10.1002/jper.21-0171] [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: 03/01/2022] [Revised: 07/09/2022] [Accepted: 07/11/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND Despite the body of evidence supporting the clinical benefits of metronidazole (MTZ) and amoxicillin (AMX) in the treatment of young patients with periodontitis, the microbiological outcomes of this antibiotic protocol have been less explored. This study evaluated the microbiological effects of adjunctive MTZ+AMX in the treatment of young patients with periodontitis. METHODS Subjects with periodontitis Stages III or IV and ≤30 years old were randomly allocated to receive scaling and root planing (SRP) with placebo (n = 15) or with MTZ (400 mg) and AMX (500 mg) three times a day for 14 days (n = 15). Nine subgingival biofilm samples per subject (three samples from each probing depth (PD) category: ≤3, 4-6, and ≥7 mm) were collected at baseline and 3-, 6-, and 12-months post-treatment and individually analyzed for 40 bacterial species by checkerboard DNA-DNA hybridization. RESULTS Thirty subjects (15/group) with mean ages 27.6 ± 3.5 (control) and 26.8 ± 3.9 (test) were included. At 12 months post-therapy, the antibiotic group harbored lower proportions of red complex (1.3%) than the placebo group (12.5%) (p < 0.05). SRP + MTZ+AMX was more effective than mechanical treatment in reducing levels/proportions of several pathogens and increasing proportions of Actinomyces species (p < 0.05). Levels/proportions of Aggregatibacter actinomycetemcomitans were only reduced in the antibiotic group (p < 0.05). This group also exhibited greater reduction in the number of sites with PD ≥5 mm and higher percentage of subjects reaching the clinical end point for treatment (≤4 sites with PD ≥5 mm) than the control group (p < 0.05). CONCLUSION SRP+MTZ+AMX allowed for establishing a long-term healthier subgingival biofilm community and periodontal clinical condition, than SRP only.
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Affiliation(s)
- Marcelo Faveri
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - Belen Retamal-Valdes
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - Maria Josefa Mestnik
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | | | - Valentim Adelino Ricardo Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Brazil
| | - João Gabriel Silva Souza
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil.,Dental Science School (Faculdade de Ciências Odontológicas-FCO), Montes, Claros, Brazil
| | - Poliana Mendes Duarte
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil.,Department of Periodontology, University of Florida College of Dentistry, Gainesville, Florida, USA
| | - Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil.,The Forsyth Institute, Cambridge, Massachusetts, USA
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6
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Moradali MF, Ghods S, Bähre H, Lamont RJ, Scott DA, Seifert R. Atypical cyclic di-AMP signaling is essential for Porphyromonas gingivalis growth and regulation of cell envelope homeostasis and virulence. NPJ Biofilms Microbiomes 2022; 8:53. [PMID: 35794154 PMCID: PMC9259658 DOI: 10.1038/s41522-022-00316-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 06/13/2022] [Indexed: 02/04/2023] Open
Abstract
Microbial pathogens employ signaling systems through cyclic (di-) nucleotide monophosphates serving as second messengers to increase fitness during pathogenesis. However, signaling schemes via second messengers in Porphyromonas gingivalis, a key Gram-negative anaerobic oral pathogen, remain unknown. Here, we report that among various ubiquitous second messengers, P. gingivalis strains predominantly synthesize bis-(3',5')-cyclic di-adenosine monophosphate (c-di-AMP), which is essential for their growth and survival. Our findings demonstrate an unusual regulation of c-di-AMP synthesis in P. gingivalis. P. gingivalis c-di-AMP phosphodiesterase (PDE) gene (pdepg) positively regulates c-di-AMP synthesis and impedes a decrease in c-di-AMP concentration despite encoding conserved amino acid motifs for phosphodiesterase activity. Instead, the predicted regulator gene cdaR, unrelated to the c-di-AMP PDE genes, serves as a potent negative regulator of c-di-AMP synthesis in this anaerobe. Further, our findings reveal that pdepg and cdaR are required to regulate the incorporation of ATP into c-di-AMP upon pyruvate utilization, leading to enhanced biofilm formation. We show that shifts in c-di-AMP signaling change the integrity and homeostasis of cell envelope, importantly, the structure and immunoreactivity of the lipopolysaccharide layer. Additionally, microbe-microbe interactions and the virulence potential of P. gingivalis were modulated by c-di-AMP. These studies provide the first glimpse into the scheme of second messenger signaling in P. gingivalis and perhaps other Bacteroidetes. Further, our findings indicate that c-di-AMP signaling promotes the fitness of the residents of the oral cavity and the development of a pathogenic community.
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Affiliation(s)
- M Fata Moradali
- Department of Oral Immunology and Infectious Diseases, University of Louisville, School of Dentistry, Louisville, KY, USA.
| | - Shirin Ghods
- Department of Oral Immunology and Infectious Diseases, University of Louisville, School of Dentistry, Louisville, KY, USA
| | - Heike Bähre
- Research Core Unit Metabolomics, Hannover Medical School, Hanover, Germany
| | - Richard J Lamont
- Department of Oral Immunology and Infectious Diseases, University of Louisville, School of Dentistry, Louisville, KY, USA
| | - David A Scott
- Department of Oral Immunology and Infectious Diseases, University of Louisville, School of Dentistry, Louisville, KY, USA
| | - Roland Seifert
- Research Core Unit Metabolomics, Hannover Medical School, Hanover, Germany
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7
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Faveri M, Lamunier L, de Figueiredo LC, Meza-Mauricio J, Scombatti de Souza SL, Bueno-Silva B. In vitro antimicrobial effect of titanium anodization on complex multispecies subgingival biofilm. BIOFOULING 2022; 38:656-662. [PMID: 35938693 DOI: 10.1080/08927014.2022.2070431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/12/2022] [Accepted: 04/20/2022] [Indexed: 06/15/2023]
Abstract
Anodization is a routine industrial galvanic method that produces a titanium oxide layer on the surface of titanium. Considering the possibility that this technique could influence microbial adsorption and colonization, this in vitro study was conducted to evaluate the impact of a process of anodization applied to a titanium surface on the microbial profile of multispecies subgingival biofilm. Titanium discs produced by using two different processes-conventional and Anodization-were divided into two groups: conventional titanium discs with machined surface (cpTi) Control Group and titanium discs with anodic oxidation treatment (anTi) Test Group. Subgingival biofilm composed of 33 species was formed on the titanium discs that were positioned vertically in 96-well plates, for 7 days. The proportions and the counts of microbial species were determined using a DNA-DNA hybridization technique, and data were evaluated using Mann-Whitney test (p < 0.05). Mean total bacterial counts were lower in Test Group in comparison with Control Group (p < 0.05). Nine bacterial species differed significantly, and were found in higher levels in Control Group in comparison with Test Group, including T. forsythia, E. nodatum, and F. periodonticum. In conclusion, titanium discs with anodization could alter the microbial profile of the biofilm formed around them. Further clinical studies should be conducted to confirm the clinical impact of these findings.
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Affiliation(s)
- Marcelo Faveri
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | - Livia Lamunier
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
| | | | - Jonathan Meza-Mauricio
- Professor, Department of Periodontology, School of Dentistry, Universidad Cientifica del Sur, Lima, Peru
| | - Sérgio Luís Scombatti de Souza
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil
| | - Bruno Bueno-Silva
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, SP, Brazil
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8
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Microbiota in Periodontitis: Advances in the Omic Era. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1373:19-43. [DOI: 10.1007/978-3-030-96881-6_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Werber T, Bata Z, Vaszine ES, Berente DB, Kamondi A, Horvath AA. The Association of Periodontitis and Alzheimer's Disease: How to Hit Two Birds with One Stone. J Alzheimers Dis 2021; 84:1-21. [PMID: 34511500 DOI: 10.3233/jad-210491] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Alzheimer's disease (AD) is the leading cause of cognitive impairment in the elderly. Recent evidence suggests that preventive interventional trials could significantly reduce the risk for development of dementia. Periodontitis is the most common dental disease characterized by chronic inflammation and loss of alveolar bone and perialveolar attachment of teeth. Growing number of studies propose a potential link between periodontitis and neurodegeneration. In the first part of the paper, we overview case-control studies analyzing the prevalence of periodontitis among AD patients and healthy controls. Second, we survey observational libraries and cross-sectional studies investigating the risk of cognitive decline in patients with periodontitis. Next, we describe the current view on the mechanism of periodontitis linked neural damage, highlighting bacterial invasion of neural tissue from dental plaques, and periodontitis induced systemic inflammation resulting in a neuroinflammatory process. Later, we summarize reports connecting the four most common periodontal pathogens to AD pathology. Finally, we provide a practical guide for further prevalence and interventional studies on the management of cognitively high-risk patients with and without periodontitis. In this section, we highlight strategies for risk control, patient information, dental evaluation, reporting protocol and dental procedures in the clinical management of patients with a risk for periodontitis and with diagnosed periodontitis. In conclusion, our review summarizes the current view on the association between AD and periodontitis and provides a research and intervention strategy for harmonized interventional trials and for further case-control or cross-sectional studies.
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Affiliation(s)
- Tom Werber
- Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Zsofia Bata
- Department of Conservative Dentistry, Semmelweis University, Budapest, Hungary
| | - Eniko Szabo Vaszine
- Department of Conservative Dentistry, Semmelweis University, Budapest, Hungary
| | - Dalida Borbala Berente
- Faculty of Medicine, Semmelweis University, Budapest, Hungary.,Neurocognitive Research Center, National Institute of Mental Health, Neurology and Neurosurgery, Budapest, Hungary
| | - Anita Kamondi
- Neurocognitive Research Center, National Institute of Mental Health, Neurology and Neurosurgery, Budapest, Hungary.,Department of Neurology, Semmelweis University, Budapest, Hungary
| | - Andras Attila Horvath
- Neurocognitive Research Center, National Institute of Mental Health, Neurology and Neurosurgery, Budapest, Hungary.,Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
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10
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Teles FRF, Lynch MC, Patel M, Torresyap G, Martin L. Bacterial resistance to minocycline after adjunctive minocycline microspheres during periodontal maintenance: A randomized clinical trial. J Periodontol 2021; 92:1222-1231. [PMID: 33866555 DOI: 10.1002/jper.17-0565] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 05/13/2020] [Accepted: 05/16/2020] [Indexed: 01/29/2023]
Abstract
BACKGROUND Despite widespread use, the impact of minocycline hydrochloride microspheres on the shifts of oral bacterial species resistant to minocycline remains unknown. This study aimed at examining the percentage and taxonomy of minocycline-resistant isolates in saliva and subgingival plaque samples before and after minocycline microspheres application in periodontitis patients during maintenance. METHODS Patients received supra- and sub-gingival debridement with (test) or without (control) minocycline microspheres application to sites with probing depth >4 mm and were clinically monitored at baseline, 1, 3, and 6 months. Samples were collected at baseline, 1 and 6 months and analyzed via cultivation with or without 4 μg/mL minocycline. Percentage of resistant strains was determined by colony counting and taxonomy by checkerboard DNA-DNA hybridization. Significant clinical changes were sought with the Mann-Whitney test and differences in percentage of resistant isolates with the Friedman and Mann-Whitney tests. RESULTS Groups showed similar clinical improvements. Mean percentage of resistant isolates rose at 1 month and decreased at 6 months in saliva and plaque samples in test group (P <0.05) but remained unchanged in control group. Percentage of resistant isolates of Gemella morbillorum and Eubacterium saburreum increased significantly at 6 months in both groups. Antibiotic resistance by Aggregatibacter actinomycetemcomitans, Tannerella forsythia, and Porphyromonas gingivalis was either absent or infrequent. CONCLUSION Minocycline microspheres result in transient selection of minocycline resistant species in saliva and subgingival plaque samples.
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Affiliation(s)
- Flavia R F Teles
- Department of Basic and Translational Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA.,Center for Innovation and Precision Dentistry, School of Dental Medicine, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA
| | | | - Michele Patel
- Department of Applied Oral Sciences, Forsyth Institute, Cambridge, MA
| | - Gay Torresyap
- Department of Applied Oral Sciences, Forsyth Institute, Cambridge, MA
| | - Lynn Martin
- Department of Basic and Translational Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA
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11
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de Oliveira AM, Lourenço TGB, Colombo APV. Impact of systemic probiotics as adjuncts to subgingival instrumentation on the oral-gut microbiota associated with periodontitis: A randomized controlled clinical trial. J Periodontol 2021; 93:31-44. [PMID: 34028826 DOI: 10.1002/jper.21-0078] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/25/2021] [Accepted: 05/16/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND The oral-gut axis may be a route linking periodontal and systemic diseases. Probiotics could be an alternative for the treatment of microbial dysbiotic conditions, including periodontitis. This randomized placebo-controlled clinical trial evaluated the short-term efficacy of systemic probiotics adjunctive to subgingival instrumentation (SI) in promoting a better restoration of the oral-gut microbiotas and greater periodontal clinical outcome. METHODS Systemically healthy adults with untreated periodontitis were recruited from a Dental School setting and allocated to receive SI plus placebo (n = 24) or probiotics (n = 24), one capsule/day for 30 days. Subgingival biofilm and stool were obtained at baseline and 2-months post-therapy for microbiological analyses by checkerboard and 16S rRNA gene sequencing. Differences in all parameters between placebo (n = 23) and probiotics (n = 19) groups were assessed by non-parametric tests. RESULTS Most subgingival species and α-diversity decreased after therapies (P <0.05), whereas gut composition/diversity were slightly or not affected by treatments. In parallel, significant clinical improvement (P <0.05) was similar between groups, although a trend for a higher proportion of poor responders in the placebo (60.8%) than the probiotic group (31.5%) was observed (P = 0.07). Strong correlations between oral and fecal species were found (P <0.01), and distinct species related to poor response for different therapies (P <0.05). Patients were classified into five periodontitis oral-gut microbial clusters, which correlated differently with attachment loss after therapies (P <0.05). CONCLUSION Systemic probiotics combined with SI did not provide short-term additional clinical or microbiological benefits in the treatment of periodontitis; however, response to therapies seemed to correlate with distinct oral-gut microbial profiles.
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Affiliation(s)
- Adriana Miranda de Oliveira
- Division of post-graduate Periodontics, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Oral Microbiology Laboratory, Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Talita Gomes Baêta Lourenço
- Oral Microbiology Laboratory, Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Ana Paula Vieira Colombo
- Division of post-graduate Periodontics, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Oral Microbiology Laboratory, Institute of Microbiology Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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12
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Rao A, D'Souza C, Subramanyam K, Rai P, Thomas B, Gopalakrishnan M, Karunasagar I, Kumar BK. Molecular analysis shows the presence of periodontal bacterial DNA in atherosclerotic plaques from patients with coronary artery disease. Indian Heart J 2021; 73:218-220. [PMID: 33865522 PMCID: PMC8065351 DOI: 10.1016/j.ihj.2021.01.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/10/2020] [Accepted: 01/08/2021] [Indexed: 11/27/2022] Open
Abstract
Links between periodontitis and atherosclerosis can be predicted based on inflammatory mechanisms initiated by bacteria associated with periodontal lesions, which then influence the initiation or propagation of the atherosclerotic lesion. This study aimed to detect the presence of three periodontal pathogens, in atheromatous plaques of patients with coronary artery disease. Subgingival and atherosclerotic plaque samples were obtained from 80 patients scheduled for CABG or angioplasty. A nested PCR was done for the detection of the pathogens in the plaque samples. Porphyromonas gingivalis, Tanarella forsythia, and Treponema denticola were detected in 10%, 12.5%, and 1.3% of the atherosclerotic plaque samples respectively. It was also observed that patients whose atherosclerotic plaques tested positive for one or more of the pathogens had chronic periodontitis.
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Affiliation(s)
- Amita Rao
- Nitte (Deemed to be University), AB Shetty Memorial Institute of Dental Sciences (ABSMIDS), Department of Periodontics, Deralakatte, Mangaluru, 575018, India.
| | - Caroline D'Souza
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Infectious Diseases, Deralakatte, Mangaluru, 575018, India
| | - K Subramanyam
- Nitte (Deemed to be University), KS Hegde Medical Academy (KSHEMA), Department of Cardiology, Deralakatte, Mangaluru, 575018, India
| | - Praveen Rai
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Infectious Diseases, Deralakatte, Mangaluru, 575018, India
| | - Biju Thomas
- Nitte (Deemed to be University), AB Shetty Memorial Institute of Dental Sciences (ABSMIDS), Department of Periodontics, Deralakatte, Mangaluru, 575018, India
| | - Mundayat Gopalakrishnan
- Nitte (Deemed to be University), KS Hegde Medical Academy (KSHEMA), Department of Cardiothoracic Surgery, Deralakatte, Mangaluru, 575018, India
| | - Indrani Karunasagar
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Infectious Diseases, Deralakatte, Mangaluru, 575018, India
| | - Ballamoole Krishna Kumar
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Division of Infectious Diseases, Deralakatte, Mangaluru, 575018, India.
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13
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Kharitonova M, Vankov P, Abdrakhmanov A, Mamaeva E, Yakovleva G, Ilinskaya O. The composition of microbial communities in inflammatory periodontal diseases in young adults Tatars. AIMS Microbiol 2021; 7:59-74. [PMID: 33659769 PMCID: PMC7921377 DOI: 10.3934/microbiol.2021005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 01/19/2021] [Indexed: 12/22/2022] Open
Abstract
Host susceptibility and environmental factors are important for the development of gingivitis and periodontitis, but bacterial biofilms attached to the teeth and gingival tissues play a crucial role. We have analyzed and compared the subgingival microbial communities between subjects with dental plaque biofilm-induced generalized chronic gingivitis (CG), localized initial (Stage I) periodontitis (IP) and healthy controls (HC) of young people aged 18-19 years permanently residing in the city of Kazan (Tatarstan, Russia). The results showed that the α-diversity in groups with CG and IP was higher than in the healthy group. In a course of periodontal disease, a decrease in the relative abundance of dominates genera Rothia and Streptococcus was observed along with increase of class TM7-3 (Candidatus Saccharibacteria phylum) representatives. Also, the increase of red complex representatives Porphyromonadeceae, Treponema and Tannerella was detected together with statistically significant increase of Filifactor, Parvimonas, Peptostreptococcaceae, Veillonellaceae, Tissierelaceae and Mogibacteriaceae. Analysis of our data suggests that transition from HC to IP may be accompanied by a decrease in microbial diversity and a reduction in the abundance of family Rs-045 (Candidatus Saccharibacteria phylum), Desulfovibrionaceae Corynebacterium, Campylobacter and Selenomonas in young adults Kazan Tatars.
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Affiliation(s)
- Maya Kharitonova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya Str. 18, Kazan 420008, Russia
| | - Peter Vankov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya Str. 18, Kazan 420008, Russia
| | - Airat Abdrakhmanov
- Department of Pediatric Dentistry, Kazan State Medical University, Butlerova Str. 49, Kazan 420012, Russia
| | - Elena Mamaeva
- Department of Pediatric Dentistry, Kazan State Medical University, Butlerova Str. 49, Kazan 420012, Russia
| | - Galina Yakovleva
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya Str. 18, Kazan 420008, Russia
| | - Olga Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya Str. 18, Kazan 420008, Russia
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14
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Ng E, Tay JRH, Balan P, Ong MMA, Bostanci N, Belibasakis GN, Seneviratne CJ. Metagenomic sequencing provides new insights into the subgingival bacteriome and aetiopathology of periodontitis. J Periodontal Res 2021; 56:205-218. [PMID: 33410172 DOI: 10.1111/jre.12811] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/29/2020] [Accepted: 09/30/2020] [Indexed: 12/17/2022]
Abstract
"Open-ended" molecular techniques such as 16S rRNA sequencing have revealed that the oral bacteriome of subgingival plaque is more diverse than originally thought. 16S rRNA analysis has demonstrated that constituents of the overall bacterial community are qualitatively similar in health and disease, differing mainly in their relative proportions with respect to each other. Species in low abundance can also act as critical species, leading to the concept of global community dysbiosis which relates to shifts in community structure, rather than shifts in membership. Correlation analysis suggests that coordinated interactions in the community are essential for incipient dysbiosis and disease pathogenesis. The subgingival bacteriome also provides biomarkers that are useful for disease detection and management. Combined with clinical and biological parameters, these may assist clinicians in developing and implementing effective treatment strategies to restore microbial homeostasis and monitor disease. Identification of higher risk groups or poor responders to treatment using unique subgingival bacteriome signatures may also lead to early intervention.
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Affiliation(s)
- Ethan Ng
- Department of Restorative Dentistry, National Dental Centre Singapore, Singapore, Singapore
| | - John R H Tay
- Department of Restorative Dentistry, National Dental Centre Singapore, Singapore, Singapore
| | - P Balan
- Singapore Oral Microbiomics Initiative, National Dental Research Institute Singapore, SingHealth, Singapore, Singapore
| | - Marianne M A Ong
- Department of Restorative Dentistry, National Dental Centre Singapore, Singapore, Singapore.,Oral Health Academic Clinical Programme, Duke-NUS Medical School, Singapore, Singapore
| | - Nagihan Bostanci
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Georgios N Belibasakis
- Division of Oral Diseases, Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Chaminda J Seneviratne
- Singapore Oral Microbiomics Initiative, National Dental Research Institute Singapore, SingHealth, Singapore, Singapore.,Oral Health Academic Clinical Programme, Duke-NUS Medical School, Singapore, Singapore
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15
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Dixitraj PT, Nayak A, Nayak R, Bhat K. Comparison of antimicrobial activity of mycelium and spore of Ganoderma Lucidum on Prevotella Intermedia isolated from chronic periodontitis patients. CHRISMED JOURNAL OF HEALTH AND RESEARCH 2021. [DOI: 10.4103/cjhr.cjhr_61_20] [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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16
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Jia P, Yang J, Yue Z, Liu J, Liu Q, Liu Z, Tang L, Hou J. Comparison of peri-implant submucosal microbiota in arches with zirconia or titanium implant-supported fixed complete dental prostheses: a study protocol for a randomized controlled trial. Trials 2020; 21:979. [PMID: 33246481 PMCID: PMC7694361 DOI: 10.1186/s13063-020-04853-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 11/01/2020] [Indexed: 12/15/2022] Open
Abstract
Background The success rate of implant-supported prostheses for edentulous patients is relatively high. However, the incidence of biological complications, especially peri-implant mucositis and peri-implantitis, increases yearly after the placement of prostheses. The accumulation of pathogenic bacteria adjacent to a prosthesis is the main cause of biological complications. Titanium, one of the classical materials for implant-supported prostheses, performs well in terms of biocompatibility and ease of maintenance, but is still susceptible to biofilm formation. Zirconia, which has emerged as an appealing substitute, not only has comparable properties, but presents different surface properties that influence the adherence of oral bacteria. However, evidence of a direct effect on oral flora is limited. Therefore, the aim of the present study was to assess the effects of material properties on biofilm formation and composition. Methods The proposed study is designed as a 5-year randomized controlled trial. We plan to enroll 44 edentulous (mandible) patients seeking full-arch, fixed, implant-supported prostheses. The participants will be randomly allocated to one of two groups: group 1, in which the participants will receive zirconia frameworks with ceramic veneering, or group 2, in which the participants will receive titanium frameworks with acrylic resin veneering. Ten follow-up examinations will be completed by the end of this 5-year trial. Mucosal conditions around the implants will be recorded every 6 months after restoration. Peri-implant submucosal plaque will be collected at each reexamination, and bacteria flora analysis will be performed with 16S rRNA gene sequencing technology in order to compare differences in microbial diversity between groups. One week before each visit, periodontal maintenance will be arranged. Each participant will receive an X-ray examination every 12 months as a key index to evaluate the marginal bone level around the implants. Discussion The current study aims to explore the oral microbiology of patients following dental restoration with zirconia ceramic frameworks or titanium frameworks. The features of the microbiota and the mucosal condition around the two different materials will be evaluated and compared to determine whether zirconia is an appropriate material for fixed implant-supported prostheses for edentulous patients. Trial registration International Clinical Trials Registry Platform (ICTRP) ChiCTR2000029470. Registered on 2 February 2020. http://www.chictr.org.cn/searchproj.aspx?
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Affiliation(s)
- Pingyi Jia
- Department of the Fourth Clinical Division, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health; Beijing Key Laboratory of Digital Stomatology, Beijing, People's Republic of China
| | - Jingwen Yang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health; Beijing Key Laboratory of Digital Stomatology, Beijing, People's Republic of China
| | - Zhaoguo Yue
- Department of Periodontology, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health; Beijing Key Laboratory of Digital Stomatology, No. 22, Zhongguancun Avenue South, Haidian District, Beijing, 100081, People's Republic of China
| | - Jianzhang Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health; Beijing Key Laboratory of Digital Stomatology, Beijing, People's Republic of China
| | - Qi Liu
- BYBO Dental Hospital, Qinian Street, Dongcheng District, Beijing, 100062, People's Republic of China
| | - Zhongning Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health; Beijing Key Laboratory of Digital Stomatology, Beijing, People's Republic of China
| | - Lin Tang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health; Beijing Key Laboratory of Digital Stomatology, Beijing, People's Republic of China
| | - Jianxia Hou
- Department of Periodontology, Peking University School and Hospital of Stomatology; National Engineering Laboratory for Digital and Material Technology of Stomatology; Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health; Beijing Key Laboratory of Digital Stomatology, No. 22, Zhongguancun Avenue South, Haidian District, Beijing, 100081, People's Republic of China.
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17
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Arjunan P. Eye on the Enigmatic Link: Dysbiotic Oral Pathogens in Ocular Diseases; The Flip Side. Int Rev Immunol 2020; 40:409-432. [PMID: 33179994 DOI: 10.1080/08830185.2020.1845330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Mouth and associated structures were regarded as separate entities from the rest of the body. However, there is a paradigm shift in this conception and oral health is now considered as a fundamental part of overall well-being. In recent years, the subject of oral-foci of infection has attained a resurgence in terms of systemic morbidities while limited observations denote the implication of chronic oral inflammation in the pathogenesis of eye diseases. Hitherto, there is a paucity for mechanistic insights underlying the reported link between periodontal disease (PD) and ocular comorbidities. In light of prevailing scientific evidence, this review article will focus on the understudied theme, that is, the impact of oral dysbiosis in the induction and/or progression of inflammatory eye diseases like diabetic retinopathy, scleritis, uveitis, glaucoma, age-related macular degeneration (AMD). Furthermore, the plausible mechanisms by which periodontal microbiota may trigger immune dysfunction in the Oro-optic-network and promote the development of PD-associated AMD have been discussed.
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Affiliation(s)
- Pachiappan Arjunan
- Department of Periodontics, Dental College of Georgia, Augusta, GA, USA.,James and Jean Culver Vision Discovery Institute, Augusta University, Augusta, GA, USA
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18
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Cruz DFD, Duarte PM, Figueiredo LC, da Silva HDP, Retamal-Valdes B, Feres M, Miranda TS. Metronidazole and amoxicillin for patients with periodontitis and diabetes mellitus: 5-year secondary analysis of a randomized controlled trial. J Periodontol 2020; 92:479-487. [PMID: 32905615 DOI: 10.1002/jper.20-0196] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/23/2020] [Accepted: 07/23/2020] [Indexed: 01/30/2023]
Abstract
BACKGROUND The aim of this study was to perform a 5-year follow-up analysis of a previously-published randomized trial (RCT) evaluating the 2-years effects of metronidazole (MTZ) plus amoxicillin (AMX) as adjuncts to scaling and root planing (SRP) in the treatment of periodontitis in type 2 diabetic patients. METHODS Volunteers who received periodontal treatment in the aforementioned RCT were selected for clinical and microbiological evaluation. Patients did not receive regular supportive periodontal therapy (SPT) from 2 to 5 years post-treatment. RESULTS Of the patients enrolled in the RCT, 43% entered this study (n = 10/control and 15/test group). Most of clinical parameter values, including the number of sites with probing depth ≥ 5 mm (primary outcome variable), were reduced at 5 years post-therapy when compared with baseline in the antibiotic-treated group (P < 0.05), but presented higher values than those at 2 years (P < 0.05). The mean proportions of microbial complexes did not differ between MTZ+AMX+SRP and SRP-only groups at 5 years post-treatment (P > 0.05). CONCLUSION Diabetic patients treated with adjunctive MTZ+AMX were better maintained over a period of 5 years than those treated with SRP only. However, the clinical and microbiological benefits obtained up to 2 years post-treatment were not fully sustained in these patients who did not receive SPT between 2 and 5 years post-treatment.
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Affiliation(s)
| | - Poliana Mendes Duarte
- Department of Periodontology, Dental Research Division, Guarulhos University, São Paulo, Brazil.,Department of Periodontology, College of Dentistry, University of Florida, Gainesville, Florida, USA
| | | | | | - Belén Retamal-Valdes
- Department of Periodontology, Dental Research Division, Guarulhos University, São Paulo, Brazil
| | - Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, São Paulo, Brazil
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19
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Faveri M, Miquelleto DEC, Bueno-Silva B, Pingueiro JMS, Figueiredo LC, Dolkart O, Yakobson E, Barak S, Feres M, Shibli JA. Antimicrobial effects of a pulsed electromagnetic field: an in vitro polymicrobial periodontal subgingival biofilm model. BIOFOULING 2020; 36:862-869. [PMID: 32993357 DOI: 10.1080/08927014.2020.1825694] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/31/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
The objective was to test the influence of a pulsed electromagnetic field (PEMF) on bacterial biofilm colonization around implants incorporated with healing abutments. Healing abutments with (test group) and without (control group) active PEMF devices were placed in a multispecies biofilm consisting of 31 different bacterial species. The biofilm composition and total bacterial counts (x105) were analyzed by checkerboard DNA-DNA hybridization. After 96 h, the mean level of 7 out of the 31 bacterial species differed significantly between groups, namely Eubacterium nodatum, Fusobacterium nucleatum ssp. nucleatum, Streptococcus intermedius, Streptococcus anginosus, Streptococcus mutans, Fusobacterium nucleatum ssp. Vicentii and Capnocytophaga ochracea were elevated in the control group (p < 0.05). The mean total bacterial counts were lower in the Test group vs the control group (p < 0.05). An electromagnetic healing cap had antimicrobial effects on the bacterial species and can be used to control bacterial colonization around dental implants. Further clinical studies should be conducted to confirm these findings.
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Affiliation(s)
- Marcelo Faveri
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Brazil
| | | | - Bruno Bueno-Silva
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Brazil
| | | | | | - Oleg Dolkart
- Sackler Faculty of Medicine, Division of Orthopedic Surgery, Tel Aviv Sourasky Medical Center, Tel Aviv University, Tel Aviv, Israel
| | | | | | - Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Brazil
| | - Jamil Awad Shibli
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, Brazil
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20
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Singh M, Teles F, Uzel NG, Papas A. Characterizing Microbiota from Sjögren's Syndrome Patients. JDR Clin Trans Res 2020; 6:324-332. [PMID: 32689841 DOI: 10.1177/2380084420940623] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE To compare the oral microbiota of Sjögren's syndrome (SS) with that of healthy subjects (HS). METHODS Supragingival and subgingival biofilm samples were collected from the mesial-buccal tooth surfaces of SS patients (n = 57) and age- and sex-matched HS (n = 53). Unstimulated saliva and 8 oral tissue samples were taken using a buccal brush. Caries and periodontal measures were recorded. All supragingival samples and a subgroup of 24 SS and 28 HS subgingival samples, as well as 32 SS and 11 HS saliva and oral tissue samples, were analyzed for their content of 41 bacterial species using checkerboard DNA-DNA hybridization. Mean levels (×105 ± SEM) and percentage of DNA probe counts of each species were determined for each sample site and averaged within subjects in the 2 clinical groups. Kruskal-Wallis tests, adjusting for multiple comparisons and cluster analysis, were used for soft tissue and microbial analysis, and the Mann-Whitney test was used to compare caries and periodontal measures. RESULTS Mean (×105 ± SEM) total DNA probe counts in supragingival samples were significantly lower (P < 0.001) in the SS (13.3 ± .7) compared to the HS (44.1 ± 6.8) group. In supragingival samples, Veillonella parvula, Fusobacterium nucleatum ss vincenti, and Propionibacterium acnes were markedly elevated in the SS compared to the HS group in both mean (×105 ± SEM) and mean (± SEM) percentage DNA probe counts (P < 0.001). In subgingival samples of SS, V. parvula was significantly different compared to HS (P < 0.05). SS was characterized by high levels of purple and low levels of orange and red complexes. Cluster analysis of oral tissues and saliva demonstrated that the mean microbial profiles for SS patients and the HS group clustered separately. Active root caries (P < 0.003) and attachment loss were significantly higher (P < 0.029) in the SS group compared to the HS group. CONCLUSION These findings indicate that saliva is a major controlling factor of intraoral biofilm. V. parvula may be a unique microbial biomarker for Sjögren's syndrome. KNOWLEDGE TRANSFER STATEMENT The microbiome characterized for Sjögren's syndrome in salivary hypofunction is shown to be under stress and reduced. Veillonella parvula can be a possible identification of a biomarker for Sjögren's syndrome.
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Affiliation(s)
- M Singh
- Division of Oral Medicine, School of Dental Medicine, Tufts University, Boston, MA, USA
| | - F Teles
- Department of Basic and Translational Sciences, University of Pennsylvania, School of Dental Medicine, Philadelphia, PA, USA.,Center for Innovation & Precision Dentistry, School of Engineering and Applied Sciences, University of Pennsylvania, School of Dental Medicine, Philadelphia, Pennsylvania, USA
| | - N G Uzel
- Department of Periodontology, School of Dental Medicine, Tufts University, Boston, MA, USA
| | - A Papas
- Division of Oral Medicine, School of Dental Medicine, Tufts University, Boston, MA, USA
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21
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Proctor DM, Shelef KM, Gonzalez A, Davis CL, Dethlefsen L, Burns AR, Loomer PM, Armitage GC, Ryder MI, Millman ME, Knight R, Holmes SP, Relman DA. Microbial biogeography and ecology of the mouth and implications for periodontal diseases. Periodontol 2000 2020; 82:26-41. [PMID: 31850642 DOI: 10.1111/prd.12268] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In humans, the composition of microbial communities differs among body sites and between habitats within a single site. Patterns of variation in the distribution of organisms across time and space are referred to as "biogeography." The human oral cavity is a critical observatory for exploring microbial biogeography because it is spatially structured, easily accessible, and its microbiota has been linked to the promotion of both health and disease. The biogeographic features of microbial communities residing in spatially distinct, but ecologically similar, environments on the human body, including the subgingival crevice, have not yet been adequately explored. The purpose of this paper is twofold. First, we seek to provide the dental community with a primer on biogeographic theory, highlighting its relevance to the study of the human oral cavity. We summarize what is known about the biogeographic variation of dental caries and periodontitis and postulate that disease occurrence reflects spatial patterning in the composition and structure of oral microbial communities. Second, we present a number of methods that investigators can use to test specific hypotheses using biogeographic theory. To anchor our discussion, we apply each method to a case study and examine the spatial variation of the human subgingival microbiota in 2 individuals. Our case study suggests that the composition of subgingival communities may conform to an anterior-to-posterior gradient within the oral cavity. The gradient appears to be structured by both deterministic and nondeterministic processes, although additional work is needed to confirm these findings. A better understanding of biogeographic patterns and processes will lead to improved efficacy of dental interventions targeting the oral microbiota.
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Affiliation(s)
- Diana M Proctor
- Division of Infectious Diseases & Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA.,National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Katie M Shelef
- Department of Biology, Stanford University, Stanford, California, USA
| | - Antonio Gonzalez
- Departments of Pediatrics and Computer Science and Engineering, University of California at San Diego, La Jolla, California, USA
| | - Clara L Davis
- Department of Microbiology & Immunology, Stanford University School of Medicine, Stanford, California, USA
| | - Les Dethlefsen
- Division of Infectious Diseases & Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Adam R Burns
- Division of Infectious Diseases & Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Peter M Loomer
- Ashman Department of Periodontology & Implant Dentistry, New York University College of Dentistry, New York, New York, USA
| | - Gary C Armitage
- Division of Periodontology, Department of Orofacial Sciences, School of Dentistry, University of California, San Francisco, California, USA
| | - Mark I Ryder
- Division of Periodontology, Department of Orofacial Sciences, School of Dentistry, University of California, San Francisco, California, USA
| | - Meredith E Millman
- Division of Periodontology, Department of Orofacial Sciences, School of Dentistry, University of California, San Francisco, California, USA
| | - Rob Knight
- Departments of Pediatrics and Computer Science and Engineering, University of California at San Diego, La Jolla, California, USA
| | - Susan P Holmes
- Department of Statistics, Stanford University, Stanford, California, USA
| | - David A Relman
- Division of Infectious Diseases & Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA.,Department of Microbiology & Immunology, Stanford University School of Medicine, Stanford, California, USA.,Infectious Diseases Section, Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA
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22
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Nascimento GG, Dahlén G, López R, Baelum V. Periodontitis phenotypes and clinical response patterns to non-surgical periodontal therapy: reflections on the new periodontitis classification. Eur J Oral Sci 2020; 128:55-65. [PMID: 31995259 DOI: 10.1111/eos.12670] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2019] [Indexed: 11/30/2022]
Abstract
We aimed to identify response patterns to non-surgical periodontal therapy and to investigate whether the new classification system for periodontitis reflects response to treatment after 1 yr. At baseline, data on sociodemographic status, smoking, and diabetes were obtained from participants with periodontal disease. Clinical periodontal data and subgingival plaque were also collected. Participants underwent non-surgical periodontal therapy, and after 3 and 12 months, clinical data were reassessed. Factor analyses, group-based-trajectory modeling, and mixed-effects regression models were used for data analysis. Factor analysis of the baseline periodontal parameters revealed two different periodontitis dimensions: 'moderate' and 'severe'. Two response patterns for each of these periodontitis dimensions were identified. Periodontal therapy had a beneficial effect on both 'moderate' and 'severe' periodontitis; however, individuals with higher levels of disease at baseline experienced greater treatment effect. Regarding the new classification system, while the staging component distinguished different levels of 'moderate' and 'severe' periodontitis before and after treatment, the grading component did not. This study shows the beneficial effect of non-surgical periodontal therapy on both 'moderate' and 'severe' periodontitis. However, the benefit was limited among individuals with low levels of disease. The new classification system did not adequately reflect the periodontal response to therapy in this patient group.
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Affiliation(s)
- Gustavo G Nascimento
- Section of Periodontology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | - Gunnar Dahlén
- Department of Oral Microbiology and Immunology, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Rodrigo López
- Section of Periodontology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | - Vibeke Baelum
- Section of Oral Epidemiology and Dental Public Health, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
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Gujar AN, Al-Hazmi A, Raj AT, Patil S. Microbial profile in different orthodontic appliances by checkerboard DNA-DNA hybridization: An in-vivo study. Am J Orthod Dentofacial Orthop 2020; 157:49-58. [PMID: 31901280 DOI: 10.1016/j.ajodo.2019.01.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 01/01/2019] [Accepted: 01/01/2019] [Indexed: 11/25/2022]
Abstract
INTRODUCTION The design of the orthodontic bracket or appliance is 1 of the most important factors for creating retentive areas for biofilm formation. In orthodontics, this would be the first study to compare the microbial level changes in 3 different types of orthodontic appliances using checkerboard DNA-DNA hybridization technique. The purpose of this study was to evaluate and compare the extent of appearance of orange and red microbial complexes in patients undergoing orthodontic treatment using aligners, conventional metallic fixed labial appliances, and lingual fixed appliances. METHODS A total of 60 patients, of which 20 patients were undergoing treatment with aligners, 20 patients with labial fixed appliances, and 20 patients with lingual fixed appliances, were included in our study. After 30 days, debonded brackets and rinsed aligners were stored and processed for analysis with checkerboard DNA-DNA hybridization. RESULTS Most bacterial species showed moderate counts, with the exception of Treponema denticola, which showed a higher count in all 3 types of appliances. Fusobacterium nucleatum, Porphyromonas gingivalis, and T denticola were present in a higher percentage in the lingual appliance. Fusobacterium periodontium and Prevotella intermedia were present in a higher percentage in the labial fixed appliance. Campylobacter rectus, Tannerella forsythia, and Prevotella melaninogenica counts were moderate in all 3 appliances, with the first 2 microbes showing slightly higher counts in aligners. The association between all the microorganisms were statistically insignificant, with the exception of F nucleatum, which showed a strong statistically significant association in all 3 types of appliances. CONCLUSIONS The microbial contamination in metallic brackets was higher than that of aligners, when used for a month. Lingual fixed appliances showed more microbial contamination than labial fixed appliances followed by aligners.
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Affiliation(s)
- Anadha N Gujar
- Department of Orthodontics, KLES Institute of Dental Sciences, Bangalore, India
| | - Anwar Al-Hazmi
- Department of Preventive Dental Science, Division of Orthodontics, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - A Thirumal Raj
- Department of Oral Pathology and Microbiology, Sri Venkateswara, Dental College and Hospital, Chennai, India
| | - Shankargouda Patil
- Department of Maxillofacial Surgery and Diagnostic Sciences, Division of Oral Pathology, College of Dentistry, Jazan University, Jazan, Saudi Arabia.
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López-Valverde N, López-Valverde A, Gómez-de Diego R, Ramírez JM, Flores-Fraile J, Muriel-Fernández J. Gingival hyperplasia as an early manifestation of acute myeloid leukemia. A retrospective review. J Clin Exp Dent 2019; 11:e1139-e1142. [PMID: 31824594 PMCID: PMC6894908 DOI: 10.4317/jced.56214] [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: 08/21/2019] [Accepted: 11/04/2019] [Indexed: 11/05/2022] Open
Abstract
Background We study the prevalence of acute myeloid leukemia (AML) among patients with severe gingival enlargement. Material and Methods We retrospective reviewed the clinical records of patients with severe gingival enlargement, between 2011 and 2018. The Saxer and Mühlemann index were used to measure inflammation and gingival bleeding. The degree of dental mobility was measured by the Nyman and Lindhe technique. Results A correlation analysis was carried out to test whether there were any associations among the different variables. In the sample of 117 patients the mean gingival bleeding index was ≥3 and the degree of dental mobility ≥2.3. 1.7% of patients, with severe gingival hyperplasia were diagnosed with AML. We found a significant association between gingival bleeding and aging (p<0.001) and a trend (0.54) between bleeding and suffering from AML. Conclusions Severe gingival enlargement, abundant gingival bleeding, and dental mobility could be early manifestations of a blood dyscrasia. Key words:Acute myeloblastic leukemia, gingival hyperplasia, bleeding, tooth motility, oral health.
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Affiliation(s)
- Nansi López-Valverde
- Department of Surgery, Instituto de Investigación Biomédica de Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
| | - Antonio López-Valverde
- Department of Surgery, Instituto de Investigación Biomédica de Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
| | | | - Juan M Ramírez
- Department of Morphological Sciences. University of Cordoba, Cordoba, Spain
| | - Javier Flores-Fraile
- Department of Surgery, Instituto de Investigación Biomédica de Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
| | - Jorge Muriel-Fernández
- Department of Surgery, Instituto de Investigación Biomédica de Salamanca (IBSAL), University of Salamanca, Salamanca, Spain
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Ribeiro MHB, Ribeiro PC, Retamal-Valdes B, Feres M, Canabarro A. Microbial profile of symptomatic pericoronitis lesions: a cross-sectional study. J Appl Oral Sci 2019; 28:e20190266. [PMID: 31800877 PMCID: PMC6886397 DOI: 10.1590/1678-7757-2019-0266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 07/22/2019] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE The microbial composition of pericoronitis (Pc) is still controversial; it is not yet clear if the microbial profile of these lesions is similar to the profile observed in periodontitis (Pd). Therefore, the aim of the present study was to describe the microbial profile of Pc lesions and compare it directly with that of subjects with Pd. METHODOLOGY Subjects with Pc and Pd were selected, and subgingival biofilm samples were collected from (i) third molars with symptomatic Pc (Pc-T), (ii) contralateral third molars without Pc (Pc-C) and (iii) teeth with a probing depth >3 mm from subjects with Pd. Counts and proportions of 40 bacterial species were evaluated using a checkerboard DNA-DNA hybridization technique. RESULTS Twenty-six patients with Pc and 18 with Pd were included in the study. In general, higher levels of microorganisms were observed in Pd. Only Actinomyces oris and Eubacterium nodatum were present in higher mean counts in the Pc-T group in comparison with the Pc-C and Pd-C groups (p<0.05). The microbiota associated with Pc-T was similar to that found in Pc-C. Sites with Pc lesions had lower proportions of red complex in comparison with the Pd sites. CONCLUSION The microbiota of Pc is very diverse, but these lesions harbour lower levels of periodontal pathogens than Pd.
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Affiliation(s)
| | - Paulo Cesar Ribeiro
- Universidade Iguaçu, Curso de Odontologia, Departamento de Cirurgia Oral, Nova Iguaçu, Rio de Janeiro, Brasil
| | - Belén Retamal-Valdes
- Universidade Guarulhos, Divisão de Pesquisa Odontológica, Departamento de Periodontia, Guarulhos, São Paulo, Brasil
| | - Magda Feres
- Universidade Guarulhos, Divisão de Pesquisa Odontológica, Departamento de Periodontia, Guarulhos, São Paulo, Brasil
| | - Antonio Canabarro
- Universidade Iguaçu, Curso de Odontologia, Departamento de Cirurgia Oral, Nova Iguaçu, Rio de Janeiro, Brasil.,Universidade Veiga de Almeida, Programa de Pós-Graduação em Odontologia, Rio de Janeiro, Rio de Janeiro, Brasil.,Universidade Estado do Rio de Janeiro, Departamento de Procedimentos Clínicos Integrados, Rio de Janeiro, Rio de Janeiro, Brasil
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Rodríguez-Hernández AP, Márquez-Corona MDL, Pontigo-Loyola AP, Medina-Solís CE, Ximenez-Fyvie LA. Subgingival Microbiota of Mexicans with Type 2 Diabetes with Different Periodontal and Metabolic Conditions. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E3184. [PMID: 31480468 PMCID: PMC6751498 DOI: 10.3390/ijerph16173184] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 08/23/2019] [Accepted: 08/29/2019] [Indexed: 01/04/2023]
Abstract
BACKGROUND Type-2-Diabetes (T2D) and Periodontitis are major inflammatory diseases. However, not much is known about the specific subgingival microbiota in Mexicans with diabetes and metabolic dysbiosis. The aim of this study was to describe the subgingival microbiota of Mexicans with T2D and the different periodontal and metabolic conditions, through "Checkerboard" DNA-DNA hybridization. METHODS Subjects were divided into two groups-periodontal-health (PH) (PH_non-T2D; n = 59, PH_T2D; n = 14) and generalized-periodontitis (GP) (GP_non-T2D; n = 67, GP_T2D; n = 38). Obesity (BMI ≥ 30 kg/m2) and serum levels of glycated-hemoglobin (HbA1c), total-lipids, triglycerides, total-cholesterol, high-density-lipids, and low-density-lipids were measured for the T2D individuals. Subgingival microbial identification was processed for 40 species through DNA-probes. RESULTS Subjects with T2D harbored significantly higher mean total levels (PH: p < 0.001, and GP_NS), a lower proportion of "red" complex (GP: p < 0.01), a higher proportion of "yellow" (GP; p < 0.001), and "orange" (GP; p < 0.01) complex than the non-T2D. GP_T2D individuals exhibited a greater proportion of putative-species-Campylobacter gracilis and S. constellatus (p < 0.001), and Parvimonas micra and Prevotella nigrescens (p < 0.01), than GP_non-T2D. T2D individuals with HbA1c > 8% had presented significantly higher mean pocket-depth and higher levels of G. morbillorum (p < 0.05) and those with obesity or dyslipidemia harbored higher levels, prevalence, or proportion of Streptococcus sp., Actinomyces sp., and Capnocytophaga sp. CONCLUSIONS T2D individuals harbored a particular microbial profile different to non-T2D microbiota. Metabolic control was related to dysbiosis of microbiota-HbA1c>8% related to periodontitis and obesity or dyslipidemia with the predominance of saccharolytic bacteria, irrespective of their periodontal condition.
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Affiliation(s)
| | - María de Lourdes Márquez-Corona
- The Academic Area of Dentistry in the Health Sciences Institute, the Autonomous University of the State of Hidalgo, Pachuca 42039, Mexico
| | - América Patricia Pontigo-Loyola
- The Academic Area of Dentistry in the Health Sciences Institute, the Autonomous University of the State of Hidalgo, Pachuca 42039, Mexico
| | - Carlo Eduardo Medina-Solís
- The Academic Area of Dentistry in the Health Sciences Institute, the Autonomous University of the State of Hidalgo, Pachuca 42039, Mexico.
| | - Laurie-Ann Ximenez-Fyvie
- Laboratory of Molecular Genetics, School of Dentistry, National Autonomous University of Mexico (UNAM), Mexico City 04360, Mexico.
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Moradali MF, Ghods S, Angelini TE, Davey ME. Amino acids as wetting agents: surface translocation by Porphyromonas gingivalis. THE ISME JOURNAL 2019; 13:1560-1574. [PMID: 30783212 PMCID: PMC6775972 DOI: 10.1038/s41396-019-0360-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 01/11/2019] [Accepted: 01/17/2019] [Indexed: 02/06/2023]
Abstract
Our understanding of how oral microbiota adapt in response to changes in their surroundings remains limited. This is particularly true of the slow-growing anaerobes that persist below the gum line. Here, we report that the oral anaerobe Porphyromonas gingivalis strain 381 can surface translocate when sandwiched between two surfaces. We show that during movement, this bacterium alters its metabolism, specifically side products of arginine utilization including citrulline and ornithine accumulated in the translocating cells; while arginine, N-acetyl-arginine, and the polyamine putrescine, which is produced from arginine were consumed. In addition, our results indicate that movement requires modification of the surrounding environment via proteolysis, cell dispersion, cell-on-cell rolling, and sub-diffusive cell-driven motility. We also show that production of fimbriae and fimbriae-associated proteins; as well as the regulation of contact-dependent growth inhibition genes, which are known to be involved in self-nonself discrimination, and the type IX secretion system are central to surface translocation. These studies provide a first glimpse into P. gingivalis motility and its relationship to ecological variables.
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Affiliation(s)
- M Fata Moradali
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
| | - Shirin Ghods
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
| | - Thomas E Angelini
- Department of Mechanical & Aerospace Engineering, University of Florida, Gainesville, FL, 32610, USA
| | - Mary Ellen Davey
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA.
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Microbiome Profiles of Ligature-Induced Periodontitis in Nonhuman Primates across the Life Span. Infect Immun 2019; 87:IAI.00067-19. [PMID: 30885927 DOI: 10.1128/iai.00067-19] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 03/11/2019] [Indexed: 12/12/2022] Open
Abstract
This investigation compared the microbiomes colonizing teeth during the initiation, progression, and resolution of periodontitis in nonhuman primates (Macaca mulatta) at different ages. Subgingival plaque samples were collected at baseline; 0.5, 1, and 3 months following ligature-induced periodontitis; and following naturally occurring disease resolution at 5 months. Samples were analyzed using 16S amplicon sequencing to identify bacterial profiles across age groups: young (<3 years of age), adolescent (3 to 7 years), adult (12 to 15 years), and aged (17 to 23 years). α-Diversity of the microbiomes was greater in the adult/aged samples than in the young/adolescent samples. β-Diversity of the samples demonstrated clear age group differences, albeit individual variation in microbiomes between animals within the age categories was noted. Phylum distributions differed between the young/adolescent animals and the adult/aged animals at each of the time points, showing an enrichment of the phyla Spirochetes, Fusobacteria, and Bacteroidetes associated with periodontitis. Major differences in the top 50 operational taxonomic units (OTUs) were noted in the young and adolescent microbiomes during initiation and progression postligation compared to the adult and aged animals. The proportions of a large number of species in the top 50 OTUs were lower at baseline and in resolved disease microbiomes in the young samples, while profiles in adolescent animals were more consistent with the disease microbiomes. Microbiome profiles for resolution for adults and aged animals appeared more resilient and generally maintained a pattern similar to that of disease. Use of the model can expand our understanding of the crucial interactions of the oral microbiome and host responses in periodontitis.
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Salhi L, Rompen E, Sakalihasan N, Laleman I, Teughels W, Michel JB, Lambert F. Can Periodontitis Influence the Progression of Abdominal Aortic Aneurysm? A Systematic Review. Angiology 2018; 70:479-491. [DOI: 10.1177/0003319718821243] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Leila Salhi
- Department of Periodontology and Oral Surgery, Faculty of Medicine, University of Liège, Liège, Belgium
| | - Eric Rompen
- Department of Periodontology and Oral Surgery, Faculty of Medicine, University of Liège, Liège, Belgium
| | - Natzi Sakalihasan
- Department of Cardiovascular and Thoracic Surgery, Surgical Research Centre, GIGA-Cardiovascular Science Unit, University of Liège, Liège, Belgium
| | - Isabelle Laleman
- Department of Oral Health Sciences, KU Leuven & Dentistry University Hospitals Leuven, Leuven, Belgium
| | - Wim Teughels
- Department of Periodontology, Research Group for Microbial Adhesion, Catholic University Leuven, Leuven, Belgium
| | - Jean-Baptiste Michel
- DRE Laboratory for Translational Vascular Science, Inserm Denis Diderot University, Paris, France
| | - France Lambert
- Dental Biomaterials Research Unit, Head of Clinic, Department of Periodontology and Oral Surgery, University of Liège, Liège, Belgium
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30
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Cadore UB, Reis MBL, Martins SHL, Invernici MDM, Novaes AB, Taba M, Palioto DB, Messora MR, Souza SLS. Multiple sessions of antimicrobial photodynamic therapy associated with surgical periodontal treatment in patients with chronic periodontitis. J Periodontol 2018; 90:339-349. [DOI: 10.1002/jper.18-0373] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 10/19/2018] [Accepted: 10/19/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Uislen B. Cadore
- Department of Oral and Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of São Paulo‒USP Ribeirão Preto São Paulo Brazil
| | - Marília B. L. Reis
- Department of Oral and Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of São Paulo‒USP Ribeirão Preto São Paulo Brazil
| | - Sergio H. L. Martins
- Department of Oral and Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of São Paulo‒USP Ribeirão Preto São Paulo Brazil
| | - Marcos de M. Invernici
- Department of Oral and Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of São Paulo‒USP Ribeirão Preto São Paulo Brazil
| | - Arthur B. Novaes
- Department of Oral and Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of São Paulo‒USP Ribeirão Preto São Paulo Brazil
| | - Mario Taba
- Department of Oral and Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of São Paulo‒USP Ribeirão Preto São Paulo Brazil
| | - Daniela B. Palioto
- Department of Oral and Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of São Paulo‒USP Ribeirão Preto São Paulo Brazil
| | - Michel R. Messora
- Department of Oral and Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of São Paulo‒USP Ribeirão Preto São Paulo Brazil
| | - Sergio L. S. Souza
- Department of Oral and Maxillofacial Surgery and Periodontology, Ribeirão Preto Dental SchoolUniversity of São Paulo‒USP Ribeirão Preto São Paulo Brazil
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Antimicrobial photodynamic therapy as adjunct to non-surgical periodontal treatment in smokers: a randomized clinical trial. Clin Oral Investig 2018; 23:3173-3182. [DOI: 10.1007/s00784-018-2740-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 10/25/2018] [Indexed: 02/01/2023]
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Zupančič Š, Rijavec T, Lapanje A, Petelin M, Kristl J, Kocbek P. Nanofibers with Incorporated Autochthonous Bacteria as Potential Probiotics for Local Treatment of Periodontal Disease. Biomacromolecules 2018; 19:4299-4306. [DOI: 10.1021/acs.biomac.8b01181] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Špela Zupančič
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Tomaž Rijavec
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia
| | - Aleš Lapanje
- Department of Environmental Sciences, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia
| | - Milan Petelin
- Department of Oral Medicine and Periodontology, Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia
| | - Julijana Kristl
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Petra Kocbek
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
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Invernici MM, Salvador SL, Silva PHF, Soares MSM, Casarin R, Palioto DB, Souza SLS, Taba M, Novaes AB, Furlaneto FAC, Messora MR. Effects of Bifidobacterium probiotic on the treatment of chronic periodontitis: A randomized clinical trial. J Clin Periodontol 2018; 45:1198-1210. [PMID: 30076613 PMCID: PMC6221043 DOI: 10.1111/jcpe.12995] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 07/14/2018] [Accepted: 08/01/2018] [Indexed: 02/06/2023]
Abstract
AIM This randomized placebo-controlled clinical trial evaluated the effect of Bifidobacterium animalis subsp. lactis (B. lactis) HN019-containing probiotic lozenges as adjuvant to scaling and root planing (SRP) in patients with generalized chronic periodontitis. MATERIALS AND METHODS Forty-one chronic periodontitis patients were recruited and monitored clinically, immunologically, and microbiologically at baseline (before SRP) and 30 and 90 days after SRP. All patients were randomly assigned to a Test (SRP + Probiotic, n = 20) or Control (SRP + Placebo, n = 21) group. The probiotic lozenges were used twice a day for 30 days. The data were statistically analysed. RESULTS The Test group presented a decrease in probing pocket depth and a clinical attachment gain significantly higher than those of the Control group at 90 days. The Test group also demonstrated significantly fewer periodontal pathogens of red and orange complexes, as well as lower proinflammatory cytokine levels when compared to the Control group. Only the Test group showed an increase in the number of B. lactis HN019 DNA copies on subgingival biofilm at 30 and 90 days. CONCLUSION The use of B. lactis HN019 as an adjunct to SRP promotes additional clinical, microbiological, and immunological benefits in the treatment of chronic periodontitis (NCT03408548).
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Affiliation(s)
- Marcos M Invernici
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo - USP, Ribeirao Preto, SP, Brazil
| | - Sérgio L Salvador
- Department of Clinical Analyses, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo - USP, Ribeirao Preto, SP, Brazil
| | - Pedro H F Silva
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo - USP, Ribeirao Preto, SP, Brazil
| | - Mariana S M Soares
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo - USP, Ribeirao Preto, SP, Brazil
| | - Renato Casarin
- Department of Prosthodontics and Periodontics, School of Dentistry, Campinas State University - UNICAMP, Piracicaba, SP, Brazil
| | - Daniela B Palioto
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo - USP, Ribeirao Preto, SP, Brazil
| | - Sérgio L S Souza
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo - USP, Ribeirao Preto, SP, Brazil
| | - Mario Taba
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo - USP, Ribeirao Preto, SP, Brazil
| | - Arthur B Novaes
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo - USP, Ribeirao Preto, SP, Brazil
| | - Flávia A C Furlaneto
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo - USP, Ribeirao Preto, SP, Brazil
| | - Michel R Messora
- Department of Oral and Maxillofacial Surgery and Periodontology, School of Dentistry of Ribeirao Preto, University of Sao Paulo - USP, Ribeirao Preto, SP, Brazil
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Shi M, Wei Y, Hu W, Nie Y, Wu X, Lu R. The Subgingival Microbiome of Periodontal Pockets With Different Probing Depths in Chronic and Aggressive Periodontitis: A Pilot Study. Front Cell Infect Microbiol 2018; 8:124. [PMID: 29765908 PMCID: PMC5938363 DOI: 10.3389/fcimb.2018.00124] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 04/13/2018] [Indexed: 11/18/2022] Open
Abstract
Periodontitis is a kind of infectious disease initiated by colonization of subgingival periodontal pathogens, which cause destruction of tooth-supporting tissues, and is a predominant threat to oral health as the most common cause of loss of teeth. The aim of this pilot study was to characterize the subgingival bacterial biodiversity of periodontal pockets with different probing depths in patients with different forms of periodontitis. Twenty-one subgingival plaque samples were collected from three patients with chronic periodontitis (ChP), three patients with aggressive periodontitis (AgP) and three periodontally healthy subjects (PH). Each patient with periodontitis was sampled at three sites, at different probing depths (PDs, one each at 4 mm, 5–6 mm, and ≥ 7 mm). Using 16S rRNA gene high-throughput sequencing and bioinformatic analysis, we found that subgingival communities in health and periodontitis samples largely differed. Meanwhile, Acholeplasma, Fretibacterium, Porphyromonas, Peptococcus, Treponema_2, Defluviitaleaceae_UCG_011, Filifactor, and Mycoplasma increased with the deepening of the pockets in ChP, whilst only Corynebacterium was negatively associated with PD. In AgP, Corynebacterium and Klebsiella were positively associated with PD, while Serratia, Pseudoramibacter, Defluviitaleaceae_UCG_011, and Desulfobulbus were negatively associated with PD. And among these two groups, Corynebacterium shifted differently. Moreover, in subgingival plaque, the unweighted UniFrac distances between samples from pockets with different PD in the same patients were significantly lower than those from pockets within the same PD category from different patients. This study demonstrated the shift of the subgingival microbiome in individual teeth sites during disease development. Within the limitation of the relative small sample size, this pilot study shed new light on the dynamic relationship between the extent of periodontal destruction and the subgingival microbiome.
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Affiliation(s)
- Meng Shi
- Department of Periodontology, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Yiping Wei
- Department of Periodontology, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Wenjie Hu
- Department of Periodontology, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Yong Nie
- Laboratory of Environmental Microbiology, Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, China
| | - Xiaolei Wu
- Laboratory of Environmental Microbiology, Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing, China
| | - Ruifang Lu
- Department of Periodontology, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
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Ferreira MVM, Cavalcanti ÉFF, PM Rubini ND, Ferreira DC, Gonçalves LS, V Colombo AP. Oral status and periodontal microbiota of HIV-infected youth infected by vertical transmission. Future Virol 2018. [DOI: 10.2217/fvl-2018-0025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aim: This study evaluated the oral status and microbiota of HIV+ youth infected by vertical transmission. Materials & methods: 34 HIV+ and 36 HIV- individuals (14–24 years of age) were examined for oral infections/lesions. Subgingival biofilm was collected and the microbiota determined by checkerboard DNA–DNA hybridization. Results: Over 90% of the HIV+ youth were under highly active antiretroviral therapy, but 64.6% had AIDS and 47% presented oral manifestations. HIV+ youth showed more periodontal attachment loss and inflammation than HIV- (p < 0.05), and also high prevalence of caries. Most species were detected in higher prevalence in the microbiota of HIV+ than controls. Conclusion: HIV+ youth infected by vertical transmission presented more periodontal destruction and inflammation, and greater prevalence of microbial pathogens compared with HIV- individuals.
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Affiliation(s)
- Mariana VM Ferreira
- School of Dentistry, Department of Clinics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
- Department of Medical Microbiology, Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Édila FF Cavalcanti
- School of Dentistry, Department of Clinics, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Norma de PM Rubini
- Department of Allergy & Immunology, Gafrée e Guinle University Hospital, Federal University of the State of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Dennis C Ferreira
- School of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
| | - Lucio S Gonçalves
- School of Dentistry, Estácio de Sá University, Rio de Janeiro, RJ, Brazil
| | - Ana Paula V Colombo
- Department of Medical Microbiology, Institute of Microbiology, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Feres M, Retamal-Valdes B, Mestnik MJ, de Figueiredo LC, Faveri M, Duarte PM, Fritoli A, Faustino E, Souto MLS, de Franco Rodrigues M, Giudicissi M, Nogueira BCL, Saraiva L, Romito GA, Pannuti CM. The ideal time of systemic metronidazole and amoxicillin administration in the treatment of severe periodontitis: study protocol for a randomized controlled trial. Trials 2018; 19:201. [PMID: 29587808 PMCID: PMC5869787 DOI: 10.1186/s13063-018-2540-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 02/12/2018] [Indexed: 12/18/2022] Open
Abstract
Background The combination of systemic metronidazole (MTZ) and amoxicillin (AMX) with scaling and root planing (SRP) has shown to be an effective periodontal treatment. However, some essential issues associated with the use of these antibiotics remain unanswered, such as the ideal time of administration during the course of periodontal treatment. Although these agents are often prescribed after the healing phase of the SRP procedure, there is biological plausibility to support its use in conjunction with the mechanical treatment. However, to date, no placebo controlled randomized clinical trial (RCT) has directly compared these two protocols. Therefore, the aim of this RCT is to compare the clinical, microbiological and immunological effects of the adjunctive systemic MTZ + AMX administered in different phases of the treatment of severe periodontitis. Methods Subjects with severe periodontitis (n = 180) are being randomly assigned into three groups (n = 60/group): (i) SRP-only (control group), SRP in combination with 400 mg MTZ + 500 mg AMX, starting (ii) at the first SRP session (active phase group), or (iii) after 3 months of its completion (healing phase group). All volunteers are receiving clinical and microbiological evaluation at baseline, 3, 6 and 12 months, and immunological assessment at baseline and 12 months post-therapy. Nine subgingival biofilm samples are being collected per subject and analyzed for counts and proportions of 40 bacterial species by checkerboard DNA-DNA hybridization, and six gingival crevicular fluid samples are being collected and analyzed for the levels of 20 chemokines by multiplex immunoassay. The primary outcome variable is the number of volunteers reaching the clinical endpoint for treatment (≤ 4 sites with probing depth ≥5 mm) at 1 year post-therapy. Differences in clinical, microbiological and immunological parameters among groups and over time will be evaluated using analysis of variance, analysis of covariance and the Chi-square and Tukey tests. Microbiological and immunological analyses will be performed using adjustments for multiple comparisons. Statistical significance will be set at 5%. Trial registration ClinicalTrials.gov, NCT02954393. Registered on 3 November 2016. Electronic supplementary material The online version of this article (10.1186/s13063-018-2540-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Magda Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil.
| | - Belén Retamal-Valdes
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - Maria Josefa Mestnik
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | | | - Marcelo Faveri
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - Poliana M Duarte
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - Aretuza Fritoli
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - Elisangela Faustino
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - Maria Luisa Silveira Souto
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of Sao Paulo, São Paulo, Brazil
| | - Michelle de Franco Rodrigues
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of Sao Paulo, São Paulo, Brazil
| | - Marcela Giudicissi
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of Sao Paulo, São Paulo, Brazil
| | - Bárbara Campos Lara Nogueira
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of Sao Paulo, São Paulo, Brazil
| | - Luciana Saraiva
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of Sao Paulo, São Paulo, Brazil
| | - Giuseppe Alexandre Romito
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of Sao Paulo, São Paulo, Brazil
| | - Cláudio Mendes Pannuti
- Division of Periodontics, Department of Stomatology, School of Dentistry, University of Sao Paulo, São Paulo, Brazil
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Liu G, Luan Q, Chen F, Chen Z, Zhang Q, Yu X. Shift in the subgingival microbiome following scaling and root planing in generalized aggressive periodontitis. J Clin Periodontol 2018; 45:440-452. [PMID: 29266363 DOI: 10.1111/jcpe.12862] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Guojing Liu
- Department of Periodontology; Peking University School and Hospital of Stomatology; Beijing China
| | - Qingxian Luan
- Department of Periodontology; Peking University School and Hospital of Stomatology; Beijing China
| | - Feng Chen
- Central Laboratory; Peking University School and Hospital of Stomatology; Beijing China
| | - Zhibin Chen
- Department of Periodontology; Peking University School and Hospital of Stomatology; Beijing China
| | - Qian Zhang
- Central Laboratory; Peking University School and Hospital of Stomatology; Beijing China
| | - Xiaoqian Yu
- Department of Periodontology; Peking University School and Hospital of Stomatology; Beijing China
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Isola G, Matarese G, Williams RC, Siciliano VI, Alibrandi A, Cordasco G, Ramaglia L. The effects of a desiccant agent in the treatment of chronic periodontitis: a randomized, controlled clinical trial. Clin Oral Investig 2018. [PMID: 28624914 DOI: 10.1007/s00784-017-2154-7] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Chemotherapeutic agents have been widely used as adjuncts for the treatment of chronic periodontitis (CP). This study investigated and compared a desiccant agent as an adjunct to scaling and root planing (SRP) versus SRP alone for the treatment of CP. MATERIALS AND METHODS Thirty-six patients with CP were studied. Using a split-mouth design, the maxillary right and left quadrants were randomly assigned to SRP plus desiccant (Hybenx® EPIEN Medical, Inc. St. Paul, MN, USA) or SRP alone. Patients were examined on a regular basis for clinical, microbiological, and inflammatory mediator changes over a 1-year period. Clinical attachment level (CAL) was the primary outcome variable. In addition, the red complex bacteria and gingival crevicular fluid (GCF) inflammatory mediators were monitored. RESULTS Compared to baseline, both treatments demonstrated an improvement in periodontal parameters. Compared to SRP alone, SRP plus desiccant yielded a significant improvement in probing depth (PD) (SRP: 2.23 ± 0.31 mm vs. desiccant: 3.25 ± 0.57 mm, p < 0.05), CAL (SRP: 3.16 ± 0.29 mm vs. desiccant: 4.21 ± 0.34 mm, p < 0.05 mm) and bleeding on probing (BOP) (SRP: 4.56 ± 1.5% vs. desiccant: 34.23 ± 4.2%, p < 0.001) at 12 months. Similarly, in the SRP plus desiccant group, the bacteria of the red complex were significantly reduced (p < 0.05); and the level of inflammatory mediators was significantly reduced (p < 0.003) compared to SRP alone. CONCLUSIONS SRP plus the desiccant resulted in a greater reduction in clinical, microbial and inflammatory mediators compared to SRP alone. CLINICAL RELEVANCE Desiccant, when combined to SRP, was demonstrated as a significant approach to control the levels of certain periodontal pathogens, inflammatory mediators in patients with CP.
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Affiliation(s)
- Gaetano Isola
- Department of Biomedical, Odontostomatological Sciences and of Morphological and Functional Images, Unit of Periodontology, School of Dentistry, University of Messina, AOU Policlinico "G. Martino", Via Consolare Valeria 1, 98125, Messina, Italy
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, School of Medicine, University of Naples "Federico II", Via G. Pansini 5, 80131, Naples, Italy
| | - Giovanni Matarese
- Department of Biomedical, Odontostomatological Sciences and of Morphological and Functional Images, Unit of Periodontology, School of Dentistry, University of Messina, AOU Policlinico "G. Martino", Via Consolare Valeria 1, 98125, Messina, Italy.
| | - Ray C Williams
- Department of Periodontology, UNC School of Dentistry, Campus Box #7450, Chapel Hill, NC, 27599-7450, USA
| | | | - Angela Alibrandi
- Department of Economics, Unit of Statistics and Mathematical Sciences, University of Messina, Via Pugliatti 1, 98122, Messina, Italy
| | - Giancarlo Cordasco
- Department of Biomedical, Odontostomatological Sciences and of Morphological and Functional Images, Unit of Periodontology, School of Dentistry, University of Messina, AOU Policlinico "G. Martino", Via Consolare Valeria 1, 98125, Messina, Italy
| | - Luca Ramaglia
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, School of Medicine, University of Naples "Federico II", Via G. Pansini 5, 80131, Naples, Italy
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Isler SÇ, Ozcan G, Akca G, Kocabas Z. The effects of different restorative materials on periodontopathogens in combined restorative-periodontal treatment. J Appl Oral Sci 2018; 26:e20170154. [PMID: 29451649 PMCID: PMC5815360 DOI: 10.1590/1678-7757-2017-0154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 08/21/2017] [Indexed: 11/22/2022] Open
Abstract
Objective The aim of the study was to evaluate the association between subgingival restorations and the target periodontopathogenic bacteria (Pg, Td and Pi) in subgingival biofilm during one year after combined restorative-periodontal treatment. Material and Methods Seventeen systemically healthy subjects, who were positive for the presence of three cervical lesions associated with gingival recessions in three different adjacent teeth, were included in the study. A total of 51 combined defects were treated with connective tissue graft plus a nanofilled composite resin (NCR+CTG), a resin-modified glass ionemer cement (RMGI+CTG) and a fluoride-releasing resin material with pre-reacted glass (PRG), called giomer (Giomer+CTG). Periodontal clinical measurements and subgingival plaque samples were obtained from all combined defects at baseline and at 6 and 12 months after the surgery. The number of bacteria were evaluated by the real-time polymerase chain reaction (qPCR) method. Results No statistically significant difference in the amount of DNA copies of Pg, Td and Pi was observed in any of the groups at any time points (p>0.05). In addition, there was no statistically significant difference in the amount of DNA copies of the bacteria at baseline and at 6 and 12 months postoperatively, regardless of treatment group (p>0.05). Conclusion This study suggests that subgingivally placed NCR, RMGI and giomer restorations can show similar effects on periodontopathogenic bacteria in the treatment of gingival recessions that are associated with noncarious cervical lesions (NCCLs).
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Affiliation(s)
- Sila Çagri Isler
- Department of Periodontolog, Faculty of Dentistry, Gazi University, Ankara, Turkey
| | - Gonen Ozcan
- Department of Periodontolog, Faculty of Dentistry, Gazi University, Ankara, Turkey
| | - Gülcin Akca
- Department of Medical Microbiolog, Faculty of Dentistry, Gazi University, Ankara, Turkey
| | - Zahide Kocabas
- Biometry and Genetics Unit, Faculty of Agriculture, Ankara University, Ankara, Turkey
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The effect of supragingival biofilm re-development on the subgingival microbiota in chronic periodontitis. Arch Oral Biol 2018; 85:51-57. [DOI: 10.1016/j.archoralbio.2017.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 10/08/2017] [Accepted: 10/09/2017] [Indexed: 11/18/2022]
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Matarese G, Ramaglia L, Cicciù M, Cordasco G, Isola G. The Effects of Diode Laser Therapy as an Adjunct to Scaling and Root Planing in the Treatment of Aggressive Periodontitis: A 1-Year Randomized Controlled Clinical Trial. Photomed Laser Surg 2017; 35:702-709. [PMID: 28945145 DOI: 10.1089/pho.2017.4288] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE The aim of this study was to investigate and compare the clinical, microbial, and inflammatory effects of a diode laser as an adjunct to scaling and root planing (SRP) versus SRP alone for the treatment of generalized aggressive periodontitis (GAgP). METHODS Using a split-mouth design, 31 patients with GAgP were enrolled in the study. The maxillary right and left quadrants were randomly assigned to SRP+diode laser or SRP alone. Patients were examined on a regular basis for clinical, microbiological, and inflammatory mediator changes over a 1-year period. Clinical attachment level (CAL) was the primary outcome variable chosen. In addition, subgingival biofilm samples and gingival crevicular fluid (GCF) inflammatory mediators were analyzed at each follow-up session. RESULTS Compared to baseline, both treatments demonstrated an improvement in periodontal parameters at 1 year. However, SRP+diode laser produced a significant improvement in probing depth (PD; 2.56 ± 0.44 vs. 3.36 ± 0.51 mm, p < 0.05) and CAL (3.47 ± 0.25 vs. 4.11 ± 0.26 mm, p < 0.05) values compared to SRP alone. Similarly, in the SRP+diode laser group, the bacteria of orange complex group were significantly reduced at 30 and 60 days compared to SRP alone. Moreover, SRP+diode laser determined a reduction in mean GCF level of interleukin (IL)-1β and IL-1β/IL-10 ratio at 15 and 30 days compared to SRP alone (p < 0.05). CONCLUSIONS At 1 year, SRP+diode laser yielded a significant reduction in some clinical parameters, while microbial and inflammatory mediator changes were not significantly reduced compared to SRP alone.
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Affiliation(s)
- Giovanni Matarese
- 1 Department of Biomedical, Odontostomatological Sciences and of Morphological and Functional Images, School of Dentistry, University of Messina , Messina, Italy
| | - Luca Ramaglia
- 2 Department of Neurosciences, Reproductive and Odontostomatological Sciences, School of Medicine, University of Naples "Federico II" , Naples, Italy
| | - Marco Cicciù
- 1 Department of Biomedical, Odontostomatological Sciences and of Morphological and Functional Images, School of Dentistry, University of Messina , Messina, Italy
| | - Giancarlo Cordasco
- 1 Department of Biomedical, Odontostomatological Sciences and of Morphological and Functional Images, School of Dentistry, University of Messina , Messina, Italy
| | - Gaetano Isola
- 1 Department of Biomedical, Odontostomatological Sciences and of Morphological and Functional Images, School of Dentistry, University of Messina , Messina, Italy
- 2 Department of Neurosciences, Reproductive and Odontostomatological Sciences, School of Medicine, University of Naples "Federico II" , Naples, Italy
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Belstrøm D, Sembler-Møller ML, Grande MA, Kirkby N, Cotton SL, Paster BJ, Holmstrup P. Microbial profile comparisons of saliva, pooled and site-specific subgingival samples in periodontitis patients. PLoS One 2017; 12:e0182992. [PMID: 28800622 PMCID: PMC5553731 DOI: 10.1371/journal.pone.0182992] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 07/27/2017] [Indexed: 11/24/2022] Open
Abstract
Objectives The purpose of this study was to compare microbial profiles of saliva, pooled and site-specific subgingival samples in patients with periodontitis. We tested the hypotheses that saliva can be an alternative to pooled subgingival samples, when screening for presence of periopathogens. Design Site specific subgingival plaque samples (n = 54), pooled subgingival plaque samples (n = 18) and stimulated saliva samples (n = 18) were collected from 18 patients with generalized chronic periodontitis. Subgingival and salivary microbiotas were characterized by means of HOMINGS (Human Oral Microbe Identification using Next Generation Sequencing) and microbial community profiles were compared using Spearman rank correlation coefficient. Results Pronounced intraindividual differences were recorded in site-specific microbial profiles, and site-specific information was in general not reflected by pooled subgingival samples. Presence of Porphyromonas gingivalis, Treponema denticola, Prevotella intermedia, Filifactor alocis, Tannerella forsythia and Parvimona micra in site-specific subgingival samples were detected in saliva with an AUC of 0.79 (sensitivity: 0.61, specificity: 0.94), compared to an AUC of 0.76 (sensitivity: 0.56, specificity: 0.94) in pooled subgingival samples. Conclusions Site-specific presence of periodontal pathogens was detected with comparable accuracy in stimulated saliva samples and pooled subgingival plaque samples. Consequently, saliva may be a reasonable surrogate for pooled subgingival samples when screening for presence of periopathogens. Future large-scale studies are needed to confirm findings from this study.
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Affiliation(s)
- Daniel Belstrøm
- Section for Periodontology, Microbiology, and Community Dentistry, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
- * E-mail:
| | - Maria Lynn Sembler-Møller
- Section for Oral Medicine, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Maria Anastasia Grande
- Section for Periodontology, Microbiology, and Community Dentistry, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Nikolai Kirkby
- Department of Medical Microbiology, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Bruce J. Paster
- The Forsyth Institute, Cambridge, MA, United States of America
- Department of Oral Medicine, Infection & Immunity, Harvard School of Dental Medicine, Boston, MA, United States of America
| | - Palle Holmstrup
- Section for Periodontology, Microbiology, and Community Dentistry, Department of Odontology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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Gul SS, Griffiths GS, Stafford GP, Al-Zubidi MI, Rawlinson A, Douglas CWI. Investigation of a Novel Predictive Biomarker Profile for the Outcome of Periodontal Treatment. J Periodontol 2017; 88:1135-1144. [PMID: 28671508 DOI: 10.1902/jop.2017.170187] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND An ability to predict the response to conventional non-surgical treatment of a periodontal site would be advantageous. However, biomarkers or tests devised to achieve this have lacked sensitivity. The aim of this study is to assess the ability of a novel combination of biomarkers to predict treatment outcome of patients with chronic periodontitis. METHODS Gingival crevicular fluid (GCF) and subgingival plaque were collected from 77 patients at three representative sites, one healthy (probing depth [PD] ≤3 mm) and two diseased (PD ≥6 mm), at baseline and at 3 and 6 months after treatment. Patients received standard non-surgical periodontal treatment at each time point as appropriate. The outcome measure was improvement in probing depth of ≥2 mm. Concentrations of active enzymes (matrix metalloproteinase [MMP]-8, elastase, and sialidase) in GCF and subgingival plaque levels of Porphyromonas gingivalis, Tannerella forsythia, and Fusobacterium nucleatum were analyzed for prediction of the outcome measure. RESULTS Using threshold values of MMP-8 (94 ng/μL), elastase (33 ng/μL), sialidase (23 ng/μL), and levels of P. gingivalis (0.23%) and T. forsythia (0.35%), receiver operating characteristic curves analysis demonstrated that these biomarkers at baseline could differentiate healthy from diseased sites (sensitivity and specificity ≥77%). Furthermore, logistic regression showed that this combination of these biomarkers at baseline provided accurate predictions of treatment outcome (≥92%). CONCLUSION The "fingerprint" of GCF enzymes and bacteria described here offers a way to predict the outcome of non-surgical periodontal treatment on a site-specific basis.
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Affiliation(s)
- Sarhang S Gul
- School of Clinical Dentistry, University of Sheffield, Sheffield, U.K
| | | | - Graham P Stafford
- School of Clinical Dentistry, University of Sheffield, Sheffield, U.K
| | | | - Andrew Rawlinson
- School of Clinical Dentistry, University of Sheffield, Sheffield, U.K
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Signature of Microbial Dysbiosis in Periodontitis. Appl Environ Microbiol 2017; 83:AEM.00462-17. [PMID: 28476771 DOI: 10.1128/aem.00462-17] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 05/02/2017] [Indexed: 01/11/2023] Open
Abstract
Periodontitis is driven by disproportionate host inflammatory immune responses induced by an imbalance in the composition of oral bacteria; this instigates microbial dysbiosis, along with failed resolution of the chronic destructive inflammation. The objectives of this study were to identify microbial signatures for health and chronic periodontitis at the genus level and to propose a model of dysbiosis, including the calculation of bacterial ratios. Published sequencing data obtained from several different studies (196 subgingival samples from patients with chronic periodontitis and 422 subgingival samples from healthy subjects) were pooled and subjected to a new microbiota analysis using the same Visualization and Analysis of Microbial Population Structures (VAMPS) pipeline, to identify microbiota specific to health and disease. Microbiota were visualized using CoNet and Cytoscape. Dysbiosis ratios, defined as the percentage of genera associated with disease relative to the percentage of genera associated with health, were calculated to distinguish disease from health. Correlations between the proposed dysbiosis ratio and the periodontal pocket depth were tested with a different set of data obtained from a recent study, to confirm the relevance of the ratio as a potential indicator of dysbiosis. Beta diversity showed significant clustering of periodontitis-associated microbiota, at the genus level, according to the clinical status and independent of the methods used. Specific genera (Veillonella, Neisseria, Rothia, Corynebacterium, and Actinomyces) were highly prevalent (>95%) in health, while other genera (Eubacterium, Campylobacter, Treponema, and Tannerella) were associated with chronic periodontitis. The calculation of dysbiosis ratios based on the relative abundance of the genera found in health versus periodontitis was tested. Nonperiodontitis samples were significantly identifiable by low ratios, compared to chronic periodontitis samples. When applied to a subgingival sample set with well-defined clinical data, the method showed a strong correlation between the dysbiosis ratio, as well as a simplified ratio (Porphyromonas, Treponema, and Tannerella to Rothia and Corynebacterium), and pocket depth. Microbial analysis of chronic periodontitis can be correlated with the pocket depth through specific signatures for microbial dysbiosis.IMPORTANCE Defining microbiota typical of oral health or chronic periodontitis is difficult. The evaluation of periodontal disease is currently based on probing of the periodontal pocket. However, the status of pockets "on the mend" or sulci at risk of periodontitis cannot be addressed solely through pocket depth measurements or current microbiological tests available for practitioners. Thus, a more specific microbiological measure of dysbiosis could help in future diagnoses of periodontitis. In this work, data from different studies were pooled, to improve the accuracy of the results. However, analysis of multiple species from different studies intensified the bacterial network and complicated the search for reproducible microbial signatures. Despite the use of different methods in each study, investigation of the microbiota at the genus level showed that some genera were prevalent (up to 95% of the samples) in health or disease, allowing the calculation of bacterial ratios (i.e., dysbiosis ratios). The correlation between the proposed ratios and the periodontal pocket depth was tested, which confirmed the link between dysbiosis ratios and the severity of the disease. The results of this work are promising, but longitudinal studies will be required to improve the ratios and to define the microbial signatures of the disease, which will allow monitoring of periodontal pocket recovery and, conceivably, determination of the potential risk of periodontitis among healthy patients.
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Martins SHL, Novaes AB, Taba M, Palioto DB, Messora MR, Reino DM, Souza SLS. Effect of surgical periodontal treatment associated to antimicrobial photodynamic therapy on chronic periodontitis: A randomized controlled clinical trial. J Clin Periodontol 2017; 44:717-728. [DOI: 10.1111/jcpe.12744] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Sérgio H. L. Martins
- Departament of Oral & Maxillofacial Surgery and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo - USP; Ribeirao Preto Sao Paulo Brazil
| | - Arthur B. Novaes
- Departament of Oral & Maxillofacial Surgery and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo - USP; Ribeirao Preto Sao Paulo Brazil
| | - Mario Taba
- Departament of Oral & Maxillofacial Surgery and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo - USP; Ribeirao Preto Sao Paulo Brazil
| | - Daniela B. Palioto
- Departament of Oral & Maxillofacial Surgery and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo - USP; Ribeirao Preto Sao Paulo Brazil
| | - Michel R. Messora
- Departament of Oral & Maxillofacial Surgery and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo - USP; Ribeirao Preto Sao Paulo Brazil
| | - Danilo M. Reino
- Departament of Oral & Maxillofacial Surgery and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo - USP; Ribeirao Preto Sao Paulo Brazil
| | - Sérgio L. S. Souza
- Departament of Oral & Maxillofacial Surgery and Periodontology; School of Dentistry of Ribeirao Preto; University of Sao Paulo - USP; Ribeirao Preto Sao Paulo Brazil
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Chatzistavrianou D, Blair F. Diagnosis and management of chronic and aggressive periodontitis part 1: periodontal assessment and diagnosis. ACTA ACUST UNITED AC 2017; 44:306-8, 310, 313-5. [DOI: 10.12968/denu.2017.44.4.306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Despoina Chatzistavrianou
- Specialist in Prosthodontics, Specialty Registrar in Restorative Dentistry, Birmingham Dental Hospital and University of Birmingham School of Dentistry, Birmingham Community Healthcare NHS Trust, Birmingham, UK
| | - Fiona Blair
- Consultant and Senior Clinical Lecturer in Restorative Dentistry, Birmingham Dental Hospital and University of Birmingham School of Dentistry, Birmingham Community Healthcare NHS Trust, Birmingham, UK
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Feres M, Figueiredo LC, Soares GMS, Faveri M. Systemic antibiotics in the treatment of periodontitis. Periodontol 2000 2017; 67:131-86. [PMID: 25494600 DOI: 10.1111/prd.12075] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2014] [Indexed: 12/12/2022]
Abstract
Despite the fact that several clinical studies have shown additional benefits when certain systemic antibiotics are used as adjuncts to periodontal treatment, clear guidelines for the use of these agents in the clinical practice are not yet available. Basic questions concerning the use of systemic antibiotics to treat periodontitis remain unanswered, such as: which drug(s) should be used; which patients would most benefit from treatment; which are the most effective protocols (i.e. doses and durations); and in which phase of the mechanical therapy should the drug(s) be administered? Although not all of those questions have been directly addressed by controlled randomized clinical trials, recent concepts related to the ecology of periodontal diseases, as well as the major advances in laboratory and clinical research methods that have occurred in the past decade, have significantly broadened our knowledge in this field. This article endeavored to provide a 'state of the art' overview on the use of systemic antibiotics in the treatment of periodontitis, based on the most recent literature on the topic as well as on a compilation of data from studies conducted at the Center of Clinical Trials at Guarulhos University (São Paulo, Brazil) from 2002 to 2012.
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Gonçalves C, Soares GMS, Faveri M, Pérez-Chaparro PJ, Lobão E, Figueiredo LC, Baccelli GT, Feres M. Association of three putative periodontal pathogens with chronic periodontitis in Brazilian subjects. J Appl Oral Sci 2016; 24:181-5. [PMID: 27119767 PMCID: PMC4836926 DOI: 10.1590/1678-775720150445] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 03/01/2016] [Indexed: 12/20/2022] Open
Abstract
Objective The aim of this study was to evaluate the association of Porphyromonas endodontalis, Filifactor alocis and Dialister pneumosintes with the occurrence of periodontitis. Material and Methods Thirty subjects with chronic periodontitis (ChP) and 10 with periodontal health (PH) were included in the study. Nine subgingival biofilm samples were collected as follows: i) PH group - from the mesial/buccal aspect of each tooth in two randomly chosen contralateral quadrants; ii) ChP group - from three sites in each of the following probing depth (PD) categories: shallow (≤3 mm), moderate (4-6 mm) and deep (≥7 mm). Checkerboard DNA-DNA hybridization was used to analyze the samples. Results We found the three species evaluated in a higher percentage of sites and at higher levels in the group with ChP than in the PH group (p<0.05, Mann-Whitney test). We also observed these differences when the samples from sites with PD≤4 mm or ≥5 mm of subjects with ChP were compared with those from subjects with PH (p<0.05, Mann-Whitney test). In addition, the prevalence and levels of D. pneumosintes, and especially of F. alocis were very low in healthy subjects (0.12x105 and 0.01x105, respectively). Conclusion F. alocis and D. pneumosintes might be associated with the etiology of ChP, and their role in the onset and progression of this infection should be further investigated. The role of P. endodontalis was less evident, since this species was found in relatively high levels and prevalence in the PH group.
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Affiliation(s)
- Cristiane Gonçalves
- Departamento de Periodontia, Universidade de Guarulhos, Guarulhos, SP, Brasil
| | | | - Marcelo Faveri
- Departamento de Periodontia, Universidade de Guarulhos, Guarulhos, SP, Brasil
| | | | - Eduardo Lobão
- Departamento de Periodontia, Universidade de Guarulhos, Guarulhos, SP, Brasil
| | | | | | - Magda Feres
- Departamento de Periodontia, Universidade de Guarulhos, Guarulhos, SP, Brasil
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Fogacci MF, Barbirato DDS, Amaral CDSF, da Silva PG, Coelho MDO, Bertozi G, de Carvalho DP, Leão ATT. No association between periodontitis, preterm birth, or intrauterine growth restriction: experimental study in Wistar rats. Am J Obstet Gynecol 2016; 214:749.e1-749.e11. [PMID: 26694136 DOI: 10.1016/j.ajog.2015.12.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 11/14/2015] [Accepted: 12/07/2015] [Indexed: 01/22/2023]
Abstract
BACKGROUND The biologic plausibility of the possible association between periodontitis and adverse pregnancy outcomes has been assessed with the use of different experimental models. However, most experimental studies did not induce periodontitis in the animals but promoted an acute microbial challenge with selected periodontal pathogens or their products subcutaneous or intravenous or intraamniotic. The present study was then conducted to verify the biologic plausibility of such association by experimentally inducing periodontitis in Wistar rats. OBJECTIVE An experimental study on an animal model by the induction of periodontitis in 50% of sites and assessment of the presence of cytokines in the gingival tissue, serum, placenta, cord, and amniotic fluid was designed to test the null hypothesis that experimental periodontitis that is induced on rats does not result in adverse pregnancy outcomes. STUDY DESIGN Forty female Wistar rats were included in 2 groups: a periodontally healthy (without ligatures) and an experimentally induced periodontitis group (test, with ligatures). Forty-five days after the induction, the mating was initiated. Males were placed with females in the ratio of 1:2 for a period of 12 hours. The bodyweight of the female, from then on, was recorded daily. When the pregnancy was confirmed on day 20, laparotomy was performed. The amniotic fluid, placenta, umbilical cord, blood (serum) and maternal and gingival tissue samples were subjected to quantitative analysis for interleukin 1α, -6, -10, -4, -12p70, and -17a, tumor necrosis factor-α, and interferon-γ by multiplex methods. Mean scores, standard deviations, and standard errors for estimated measures were calculated. For cytokines analyses, the Mann-Whitney test was conducted to compare the concentration of the analytes from control and test groups in the different tissues samples. For comparison of cytokines reduction from gingival tissue to serum and from serum to placenta, the Wilcoxon Test was performed. Spearman's correlation was conducted among cytokines in the 5 different tissues that were evaluated. RESULTS The induced periodontitis in Wistar rats did not result in adverse outcomes of pregnancy. There were no statistically significant differences between groups in relation to prematurity, fetal, or birth weight. Regarding cytokines, there were no statistically significant differences in concentrations that were measured in each tissue between the groups with periodontitis and controls. Furthermore, all cytokine levels in the placenta, except interleukin-6, were diminished compared with the amniotic fluid or maternal serum, which suggested that the cytokines cannot easily be transferred via this tissue in maternal-fetal or fetomaternal direction. The fertility rate was reduced significantly in the group with periodontitis. CONCLUSION Periodontitis that is induced in rats is not a risk factor for preterm birth or low birthweight.
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Affiliation(s)
- Mariana Fampa Fogacci
- Department of Dental Clinic, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Davi da Silva Barbirato
- Department of Dental Clinic, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; Environmental Biogeochemistry Wolfgang C. Pfeiffer Laboratory, Federal University of Rondonia (UNIR)
| | - Cristine da Silva Furtado Amaral
- Department of Dental Clinic, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; Department of Psychology and Dental Clinic, Veiga de Almeida University, Rio de Janeiro, Brazil
| | | | | | - Giuliana Bertozi
- Medical School of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
| | - Denise Pires de Carvalho
- Division of Graduate Periodontics, and the Laboratory of Endocrine Physiology, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Tamashiro N, Duarte P, Miranda T, Maciel S, Figueiredo L, Faveri M, Feres M. Amoxicillin Plus Metronidazole Therapy for Patients with Periodontitis and Type 2 Diabetes. J Dent Res 2016; 95:829-36. [DOI: 10.1177/0022034516639274] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The aim of this study was to assess the changes occurring in subgingival biofilm composition and in the periodontal clinical parameters of subjects with periodontitis and type 2 diabetes mellitus (DM) treated by means of scaling and root planing (SRP) only or combined with systemic metronidazole (MTZ) and amoxicillin (AMX). Fifty-eight subjects were randomly assigned to receive SRP only ( n = 29) or with MTZ (400 mg/thrice a day [TID]) and AMX (500 mg/TID) ( n = 29) for 14 d. Six subgingival plaque samples/subject were analyzed by checkerboard DNA–DNA hybridization for 40 bacterial species at baseline and 3 mo, 1 y, and 2 y posttherapy. At 2 y posttherapy, the antibiotic-treated group harbored lower mean proportions (5.5%) of red complex pathogens than the control group (12.1%) ( P < 0.05). The proportions of the Actinomyces species remained stable in the antibiotic group but showed a statistically significant reduction in the control group from 1 to 2 y in subjects achieving a low risk clinical profile for future disease progression (i.e., ≤4 sites with probing depth [PD] ≥5 mm). The test group also had a lower mean number of sites with PD ≥5 mm (3.5 ± 3.4) and a higher percentage of subjects reaching the low risk clinical profile (76%) than the control group (14.7 ± 13.1 and 22%, respectively) ( P < 0.05) at 2 y posttreatment. MTZ + AMX intake was the only significant predictor of subjects achieving the low risk at 2 y (odds ratio, 20.9; P = 0.0000). In conclusion, the results of this study showed that the adjunctive use of MTZ + AMX improves the microbiological and clinical outcomes of SRP in the treatment of subjects with generalized chronic periodontitis and type 2 DM up to 2 y ( ClinicalTrials.gov NCT02135952).
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Affiliation(s)
- N.S. Tamashiro
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - P.M. Duarte
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - T.S. Miranda
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - S.S. Maciel
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - L.C. Figueiredo
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - M. Faveri
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
| | - M. Feres
- Department of Periodontology, Dental Research Division, Guarulhos University, Guarulhos, São Paulo, Brazil
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