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Khzam N, Kujan O, Haubek D, Arslan A, Johansson A, Oscarsson J, Razooqi Z, Miranda LA. Prevalence of Subgingival Aggregatibacter actinomycetemcomitans: Descriptive Cross-Sectional Study. Pathogens 2024; 13:531. [PMID: 39057758 PMCID: PMC11279484 DOI: 10.3390/pathogens13070531] [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: 05/31/2024] [Revised: 06/18/2024] [Accepted: 06/22/2024] [Indexed: 07/28/2024] Open
Abstract
This paper aims to investigate the presence of Aggregatibacter actinomycetemcomitans and to assess potential indicators of the risk of severe form(s) of periodontitis. A descriptive cross-sectional study of 156 consecutive patients with periodontitis was conducted. Subgingival plaque samples were collected from the participants. The identification of A. actinomycetemcomitans was performed using quantitative polymerase chain reaction. A descriptive analysis, a chi-square test, and a binary logistic regression statistical evaluation were performed. The prevalence of A. actinomycetemcomitans in this population of 156 participants was 17.30% (27 patients). The prevalence of stage-III periodontitis was 75.6% and greater in older men, while the prevalence of stage-IV periodontitis was 22.4% and greater in younger women. We observed a significant relation between the risk of severe periodontitis (stage-IV) and poor oral hygiene (p = 0.006), attendance at dental appointments (p ≤ 0.001), and familial history of periodontitis (p = 0.032). In conclusion, twenty-seven individuals were positive for A. actinomycetemcomitans. Poor oral hygiene, family history of periodontitis, and irregular attendance at dental appointments were identified as potential risk factors for severe periodontitis in this cohort.
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Affiliation(s)
- Nabil Khzam
- UWA Dental School, The University of Western Australia, Nedlands, WA 6009, Australia; (N.K.); (L.A.M.)
- NK Periodontics, Specialist Periodontal Private Practice, Applecross, WA 6152, Australia
| | - Omar Kujan
- UWA Dental School, The University of Western Australia, Nedlands, WA 6009, Australia; (N.K.); (L.A.M.)
| | - Dorte Haubek
- Jammerbugt Municipal Dental Service, Skolevej 1, DK-9460 Brovst, Denmark;
| | - Aysen Arslan
- Department of Odontology, Umeå University, 901 87 Umeå, Sweden; (A.A.); (J.O.); (Z.R.)
| | - Anders Johansson
- Department of Odontology, Umeå University, 901 87 Umeå, Sweden; (A.A.); (J.O.); (Z.R.)
| | - Jan Oscarsson
- Department of Odontology, Umeå University, 901 87 Umeå, Sweden; (A.A.); (J.O.); (Z.R.)
| | - Zeinab Razooqi
- Department of Odontology, Umeå University, 901 87 Umeå, Sweden; (A.A.); (J.O.); (Z.R.)
| | - Leticia Algarves Miranda
- UWA Dental School, The University of Western Australia, Nedlands, WA 6009, Australia; (N.K.); (L.A.M.)
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García-González S, Aboul-Hosn Centenero S, Baumann P, Fita-Esteban I, Hernández-Alfaro F, Weyer N. Prospective, multi-centric, international, single-arm, cohort study to assess a synthetic polyamide suture material in oral surgery to close the mucosa - MUCODA study. J Dent 2024; 145:104922. [PMID: 38490322 DOI: 10.1016/j.jdent.2024.104922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 02/27/2024] [Accepted: 03/01/2024] [Indexed: 03/17/2024] Open
Abstract
OBJECTIVES The aim was to collect different clinical parameters systematically and proactively regarding safety, effectiveness, and performance of a nylon monofilament suture under routine clinical practice for oral surgery. METHODS The study design was prospective, bicentric, international, single-armed, and observational. A non-absorbable suture was applied to close the mucosa after different dental surgical interventions. Main objective was the incidence of combined postoperative complications until suture removal. The 95 % Confidence Interval (Agresti-Coull method) was used to prove the non-inferiority with a pre-specified upper margin of 21.9 %. Secondary variables were intraoperative suture handling, patient pain and satisfaction, wound healing, aesthetic appearance, and bacterial contamination. RESULTS 105 patients were enrolled. Complication rate was low (1.9 %), 2 swellings occurred. Pain was present for 1.61 days ± 1.42 after various dental interventions with an average pain level of 20.98 ± 22.60 (VAS). Patients with impacted third molar extraction showed the longest pain duration (6 days) combined with the highest mean pain level of 35.33 ± 30.45 (VAS). Intraoperative suture handling was very good to excellent. Suture removal was done after an average duration of 7.56 ± 2.09 days. Patient's satisfaction was high, and an excellent wound healing was reported by the dentists. Aesthetic appearance only performed in implant patients was rated by oral surgeons with an average of 96.19 ± 3.79 points [min. 80 - max. 100] at 5 months postoperatively. Thread bacterial analysis showed that F. nucleatum was the most present species. CONCLUSIONS Our findings indicate that the non-absorbable, nylon-based monofilament suture used is safe and quite suitable for oral mucosal closure after various dental surgical interventions such as tooth extraction, implant placement and impacted third molar extraction. CLINICAL SIGNIFICANCE This study showed the safe use of a non-absorbable, nylon-based monofilament suture for different oral surgical interventions under daily routine clinical practice.
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Affiliation(s)
- S García-González
- Department of Oral Surgery, International University of Catalonia, Carrer de Josep Trueta, 08195 Sant Cugat del Vallès, Barcelona, Spain.
| | - S Aboul-Hosn Centenero
- Department of Oral Surgery, International University of Catalonia, Carrer de Josep Trueta, 08195 Sant Cugat del Vallès, Barcelona, Spain
| | - P Baumann
- Department of Medical Scientific Affairs, Aesculap AG, Am Aesculap Platz 78532 Tuttlingen, Germany
| | - I Fita-Esteban
- Department of Medical Scientific Affairs, B. Braun Surgical, S.A.U., Carretera de Terrassa 121 08191 Rubí, Barcelona, Spain
| | - F Hernández-Alfaro
- Department of Oral Surgery, International University of Catalonia, Carrer de Josep Trueta, 08195 Sant Cugat del Vallès, Barcelona, Spain
| | - N Weyer
- Praxisklinik für MKG, Ästhetische und Plastische Chirurgie, Schwerpunkt Implantologie, Fabrikstraße 10/1, 73728 Esslingen am Neckar, Germany
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Brinar S, Skvarča A, Gašpirc B, Schara R. The effect of antimicrobial photodynamic therapy on periodontal disease and glycemic control in patients with type 2 diabetes mellitus. Clin Oral Investig 2023; 27:6235-6244. [PMID: 37672083 PMCID: PMC10560165 DOI: 10.1007/s00784-023-05239-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 08/23/2023] [Indexed: 09/07/2023]
Abstract
OBJECTIVES This study is aimed at determining the effect of concomitant antimicrobial photodynamic therapy (aPTD) on periodontal disease and glycaemic control in patients with type 2 diabetes mellitus (T2DM). MATERIALS AND METHODS Twenty-four patients with T2DM were enrolled in the study. Periodontal clinical parameters were assessed by measuring probing pocket depth (PPD), clinical attachment loss (CAL), gingival recession (GR), full-mouth bleeding score (FMBS), full-mouth plaque score (FMPS), and full-mouth sulcus bleeding score (FMSBS). Glycated haemoglobin A1c (HbA1c) was measured. To determine the presence of the following periodontal pathogenic bacteria, Aggregatibacter actinomycetemcomitans, Prevotella intermedia, Porphyromonas gingivalis, Tannerella forsythia, and Treponema denticola, subgingival plaque samples were taken from two periodontal pockets per jaw with the greatest PPD using paper tips. Patients were randomly divided into the test and control group. In the test group, full-mouth disinfection was performed in combination with aPTD. In the control group, only full-mouth disinfection was performed. RESULTS The results showed an improvement in periodontal clinical parameters in both groups. The difference between the groups in favour of the test group was statistically significant for BOP. The HbA1c level decreased in both groups. The difference was not statistically significant. The results of the microbiological analysis suggest that the presence of periodontal pathogenic bacteria is lower with additional antimicrobial photodynamic therapy with statistically significant difference for T. forsythia. CONCLUSIONS Additional aPDT causes a significant reduction in BoP in the proportion of positive sites for periodontal pathogens. TRIAL REGISTRATION ClinicalTrials.gov ID: NCT05816941. CLINICAL RELEVANCE aPTD is a noninvasive adjunctive therapy that can positively influence the periodontal treatment outcome.
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Affiliation(s)
- Sara Brinar
- Department of Oral Medicine and Periodontology, University Medical Center Ljubljana, Ljubljana, Slovenia
- Community Health Centre Murska Sobota, Murska Sobota, Slovenia
| | - Aleš Skvarča
- Department of Endocrinology, Diabetes and Metabolic Diseases, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Boris Gašpirc
- Department of Oral Medicine and Periodontology, University Medical Center Ljubljana, Ljubljana, Slovenia
- Department of Oral Medicine and Periodontology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Rok Schara
- Department of Oral Medicine and Periodontology, University Medical Center Ljubljana, Ljubljana, Slovenia.
- Department of Oral Medicine and Periodontology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.
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Ge D, Wang F, Hu Y, Wang B, Gao X, Chen Z. Fast, Simple, and Highly Specific Molecular Detection of Porphyromonas gingivalis Using Isothermal Amplification and Lateral Flow Strip Methods. Front Cell Infect Microbiol 2022; 12:895261. [PMID: 35694545 PMCID: PMC9174636 DOI: 10.3389/fcimb.2022.895261] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 04/27/2022] [Indexed: 12/16/2022] Open
Abstract
Porphyromonas gingivalis is an important oral pathogen that causes periodontal disease and is difficult to culture under conventional conditions. Therefore, a reliable technique for detecting this pathogenic bacterium is required. Here, isothermal recombinase polymerase amplification (RPA), a new nucleic acid amplification method, was combined with a visualization method based on nanoparticle-based lateral flow strips (LFS) for the rapid detection of P. gingivalis. The species-specific 16S rRNA sequence of P. gingivalis was used as the target for RPA, and a set of specific primer–probe combinations were designed and screened to amplify the target sequences. As a thermostatic amplification method, the RPA reaction, under optimized conditions, takes only 30 min to complete at a constant temperature (37°C). The amplification reaction products can be detected visually by LFS without any need for special equipment. The RPA-LFS method established for the detection of P. gingivalis was shown to be highly specific in distinguishing P. gingivalis from other pathogenic organisms by using 20 clinical isolates of P. gingivalis and 23 common pathogenic microorganisms. Susceptibility measurements and probit regression analysis were performed with gradient dilutions of P. gingivalis genomic DNA. The method was obtained to be highly sensitive, with a detection limit of 9.27 CFU per reaction at 95% probability. By analyzing the gingival sulcus fluid specimens from 130 patients with chronic periodontitis, the results showed that the RPA-LFS method detected 118 positive cases and 12 negative cases of P. gingivalis, and the results obtained were consistent with those of a conventional PCR assay. The RPA–LFS method is an efficient, rapid, and convenient diagnostic method that simplifies the tedious process of detecting P. gingivalis.
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Affiliation(s)
| | | | | | | | - Xuzhu Gao
- *Correspondence: Zhenxing Chen, ; Xuzhu Gao,
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Yang I, Claussen H, Arthur RA, Hertzberg VS, Geurs N, Corwin EJ, Dunlop AL. Subgingival Microbiome in Pregnancy and a Potential Relationship to Early Term Birth. Front Cell Infect Microbiol 2022; 12:873683. [PMID: 35646730 PMCID: PMC9132049 DOI: 10.3389/fcimb.2022.873683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/13/2022] [Indexed: 12/14/2022] Open
Abstract
Background Periodontal disease in pregnancy is considered a risk factor for adverse birth outcomes. Periodontal disease has a microbial etiology, however, the current state of knowledge about the subgingival microbiome in pregnancy is not well understood. Objective To characterize the structure and diversity of the subgingival microbiome in early and late pregnancy and explore relationships between the subgingival microbiome and preterm birth among pregnant Black women. Methods This longitudinal descriptive study used 16S rRNA sequencing to profile the subgingival microbiome of 59 Black women and describe microbial ecology using alpha and beta diversity metrics. We also compared microbiome features across early (8-14 weeks) and late (24-30 weeks) gestation overall and according to gestational age at birth outcomes (spontaneous preterm, spontaneous early term, full term). Results In this sample of Black pregnant women, the top twenty bacterial taxa represented in the subgingival microbiome included a spectrum representative of various stages of biofilm progression leading to periodontal disease, including known periopathogens Porphyromonas gingivalis and Tannerella forsythia. Other organisms associated with periodontal disease reflected in the subgingival microbiome included several Prevotella spp., and Campylobacter spp. Measures of alpha or beta diversity did not distinguish the subgingival microbiome of women according to early/late gestation or full term/spontaneous preterm birth; however, alpha diversity differences in late pregnancy between women who spontaneously delivered early term and women who delivered full term were identified. Several taxa were also identified as being differentially abundant according to early/late gestation, and full term/spontaneous early term births. Conclusions Although the composition of the subgingival microbiome is shifted toward complexes associated with periodontal disease, the diversity of the microbiome remains stable throughout pregnancy. Several taxa were identified as being associated with spontaneous early term birth. Two, in particular, are promising targets of further investigation. Depletion of the oral commensal Lautropia mirabilis in early pregnancy and elevated levels of Prevotella melaninogenica in late pregnancy were both associated with spontaneous early term birth.
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Affiliation(s)
- Irene Yang
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, United States
- *Correspondence: Irene Yang,
| | - Henry Claussen
- Emory Integrated Computational Core, Emory University, Atlanta, GA, United States
| | - Robert Adam Arthur
- Emory Integrated Computational Core, Emory University, Atlanta, GA, United States
| | | | - Nicolaas Geurs
- Department of Periodontology, School of Dentistry, University of Alabama at Birmingham, Birmingham, AL, United States
| | | | - Anne L. Dunlop
- Department of Gynecology and Obstetrics, School of Medicine, Emory University, Atlanta, GA, United States
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Matrix-assisted Laser Desorption Ionization–Time of Flight Mass Spectrometry (MALDI-TOF MS) for subgingival bacteriome identification in a group of treated periodontitis patients: a case series. REV ROMANA MED LAB 2022. [DOI: 10.2478/rrlm-2022-0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Periodontitis is a chronic multifactorial polymicrobial infection, characterized by profound modifications of the composition and proportion of the subgingival microbiota. Microbiological laboratory tests are sometimes used in periodontal diagnosis and monitoring of treatment, but both conventional cultivation methods and molecular techniques have some major drawbacks. Therefore, other performant bacterial identification methods must be considered. The aim of the current study was to use Matrix-assisted Laser Desorption Ionization–Time of Flight Mass Spectrometry (MALTI-TOF MS) analysis in association with bacterial culture method to evaluate the modifications of the subgingival bacterial composition in periodontitis patients, before and after cause-related subgingival therapy. Subgingival plaque samples were collected from periodontal pockets before and after subgingival mechanical instrumentation and adjunctive local antimicrobial applications and were cultured in aerobic and anaerobic conditions. Microbial colonies were further assessed using MALDI-TOF-MS. A total of 36 bacterial strains were isolated from a group of 16 patients. All species from the orange complex were identified by MALDI-TOF MS. A marked reduction of detection frequency was observed in most bacterial strains, including the orange complex after cause-related periodontal treatment. The results of this study indicate that MALDI-TOF MS could be considered an accurate method for oral microbial identification and the cause-related periodontal treatment is useful for reducing the microbial burden.
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A View on Polymerase Chain Reaction as an Outstanding Molecular Diagnostic Technique in Periodontology. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9979948. [PMID: 34337068 PMCID: PMC8315861 DOI: 10.1155/2021/9979948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/11/2021] [Accepted: 07/13/2021] [Indexed: 12/12/2022]
Abstract
Objectives This study presents a discussion on the fundamentals of polymerase chain reaction (PCR) and its use as a diagnostic tool in periodontology. Materials and Methods A computer-aided as well as hand-made search in PubMed and Scopus indexed journals (relevant to the topic) was done by keywords of molecular technique in periodontology, PCR, applications of PCR, and PCR in periodontics. Only the papers in the English language and outlining PCR and its association with periodontology were collected and utilized to provide a succinct review. There was no limitation for publication time. Results The results of our search showed that PCR has turned into a standard in diagnosis in the field of periodontology. A variety of researches has demonstrated that its sensitive, and specific characteristics make it a quick and effective technique of recognition, identification, and quantification of microorganisms. Identification of various immunoinflammatory markers at the mRNA expression level as well as ascertaining gene-related polymorphisms can also be performed. Conclusions The mechanisms of periodontal disease can further become clarified using PCR. Clinical Relevance. PCR as a diagnostic method can play a main part in the validation of the clinical diagnosis of periodontal disease indicating the reason, pathogenesis, clinical steps, progress, and prognosis of the disease.
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Lenkowski M, Nijakowski K, Kaczmarek M, Surdacka A. The Loop-Mediated Isothermal Amplification Technique in Periodontal Diagnostics: A Systematic Review. J Clin Med 2021; 10:1189. [PMID: 33809163 PMCID: PMC8000232 DOI: 10.3390/jcm10061189] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 11/26/2022] Open
Abstract
The course of periodontal disease is affected by many factors; however, the most significant are the dysbiotic microflora, showing different pathogenicity levels. Rapid colonization in the subgingival environment can radically change the clinical state of the periodontium. This systematic review aims to present an innovative technique of loop-mediated isothermal amplification for rapid panel identification of bacteria in periodontal diseases. The decisive advantage of the loop-mediated isothermal amplification (LAMP) technique in relation to molecular methods based on the identification of nucleic acids (such as polymerase chain reaction (PCR or qPCR) is the ability to determine more pathogens simultaneously, as well as with higher sensitivity. In comparison with classical microbiological seeding techniques, the use of the LAMP method shortens a few days waiting time to a few minutes, reducing the time necessary to identify the species and determine the number of microorganisms. The LAMP technology requires only a small hardware base; hence it is possible to use it in outpatient settings. The developed technique provides the possibility of almost immediate assessment of periodontal status and, above all, risk assessment of complications during the treatment (uncontrolled spread of inflammation), which can certainly be of key importance in clinical work.
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Affiliation(s)
- Marcin Lenkowski
- Department of Conservative Dentistry and Endodontics, Poznan University of Medical Sciences, 60-812 Poznan, Poland
| | - Kacper Nijakowski
- Department of Conservative Dentistry and Endodontics, Poznan University of Medical Sciences, 60-812 Poznan, Poland
| | - Mariusz Kaczmarek
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland
| | - Anna Surdacka
- Department of Conservative Dentistry and Endodontics, Poznan University of Medical Sciences, 60-812 Poznan, Poland
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Kalala-Kazadi E, Toma S, Lasserre JF, Nyimi-Bushabu F, Ntumba-Mulumba H, Brecx MC. Clinical and Microbiological Profiles of Aggressive and Chronic Periodontitis in Congolese Patients: A Cross-sectional Study. J Int Soc Prev Community Dent 2020; 10:491-497. [PMID: 33042892 PMCID: PMC7523938 DOI: 10.4103/jispcd.jispcd_501_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/02/2020] [Accepted: 02/17/2020] [Indexed: 11/07/2022] Open
Abstract
Background: Chronic and aggressive periodontitis were the main forms of periodontitis according to the 1999 classification of periodontal diseases and conditions. Their profile in Congolese patients is still undescribed. Aim: The aim of this study was to compare the profile of chronic periodontitis (ChP) with that of aggressive periodontitis (AgP) in Congolese patients. Materials and Methods: Thirty-two patients with ChP and 20 with AgP who consulted the dental services at any of the four medical centers in Kinshasa, from April 2017 to April 2018, were enrolled in the cross-sectional study. All patients underwent a full mouth examination, including assessment of the probing pocket depth and clinical attachment level at six sites per tooth. Microbial samples were collected in the deepest pocket in the maxilla and the deepest pocket in the mandible. A deoxyribonucleic acid (DNA) analysis was performed using DNA strip technology. Fisher exact test, the chi-square test, the t test, and the Mann–Whitney test were used for the statistical analysis. Results: Patients with AgP were significantly younger than those with ChP (P < 0.001). There was no significant difference in the prevalence of Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola, or Prevotella intermedia between the AgP and ChP groups (P > 0.05). Aggregatibacter actinomycetemcomitans was detected in 10% of cases in the AgP group and in none of those in the ChP group (P = 0.143). Conclusion: This study shows that the clinical profiles of ChP and AgP are similar in Congolese patients. There were no microbiological differences between these two forms of periodontitis.
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Affiliation(s)
- Em Kalala-Kazadi
- Periodontology Unit, Department of Dental Medicine, Faculty of Medicine, University of Kinshasa, Kinshasa, Democratic Republic of Congo
| | - Selena Toma
- Department of Periodontology, Université Catholique de Louvain, Brussels, Belgium
| | - Jérôme F Lasserre
- Department of Periodontology, Université Catholique de Louvain, Brussels, Belgium
| | - Fidèle Nyimi-Bushabu
- Oral and maxillo-facial surgery, Department of Dental Medicine, Faculty of Medicine, University of Kinshasa, Kinshasa, Democratic Republic of Congo
| | - Hubert Ntumba-Mulumba
- Prosthodontics and Orthodontics Service, Department of Dental Medicine, Faculty of Medicine, University of Kinshasa, Kinshasa, Democratic Republic of Congo
| | - Michel C Brecx
- Department of Periodontology, Université Catholique de Louvain, Brussels, Belgium
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Clinical and Microbiological Effects of Weekly Supragingival Irrigation with Aerosolized 0.5% Hydrogen Peroxide and Formation of Cavitation Bubbles in Gingival Tissues after This Irrigation: A Six-Month Randomized Clinical Trial. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:3852431. [PMID: 32802264 PMCID: PMC7415088 DOI: 10.1155/2020/3852431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/08/2020] [Accepted: 07/07/2020] [Indexed: 11/30/2022]
Abstract
Introduction The study investigated the effect of weekly supragingival irrigation with aerosolized 0.5% hydrogen peroxide (H2O2) solution as a maintenance periodontal therapy on clinical and microbiological parameters in patients with chronic periodontitis. The other purpose was to investigate whether cavitation bubbles can penetrate not only into periodontitis-damaged tissues but also into ex vivo porcine healthy periodontal tissues. Materials and Methods The study included 35 systemically healthy patients with chronic periodontitis (CP). After nonsurgical periodontal debridement (NSPD), all patients were randomized into two groups: the Control group (NSDP alone, n = 18) and the Test group (NSDP plus supragingival irrigation, n = 17). Clinical (Approximal Plaque Index (API), Bleeding Index (BI), and Modified Gingival Index (MGI)) and microbiological (Polymerase Chain Reaction technology (using a micro-IDent® kit)) measurements were performed at the initial time point, 3 months, and 6 months after NSPD. The impact of supragingival irrigation on diseased gingival tissues of CP patients (n = 5) and on ex vivo porcine healthy gingival tissue samples (n = 3) was evaluated to estimate morphological changes in healthy and diseased gingival tissues. Results Morphological data revealed that supragingival irrigation caused the formation of cavitation bubbles in diseased gingival tissue of CP patients and in healthy porcine gingival tissues. The decrease in API, BI, and MGI scores after 6 months in the Test group significantly (p ≤ 0.01, p ≤ 0.05, and p ≤ 0.01, respectively) exceeded that in the Control group. Test group patients demonstrated a decrease in periodontal sites showing Pocket Probing Depth > 4 mm and, after 6 months, a statistically significant decrease in the proportion of periopathogenic bacteria. Conclusion The effectiveness of mechanical periodontal treatment combined with weekly supragingival irrigation with aerosolized 0.5% H2O2 solution on clinical and microbiological parameters of periodontal tissues of periodontitis patients is reliably higher than that of mechanical periodontal debridement alone. It has been found that cavitation bubbles as a result of irrigation with the aerosolized 0.5% hydrogen peroxide solution can form not only in periodontal tissues of periodontitis patients but also in ex vivo porcine healthy gingival tissues.
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Karatas O, Balci Yuce H, Aydemir Turkal H. Dental hypofunction alters subgingival microorganisms: a pilot study. MINERVA STOMATOLOGICA 2019; 68:183-191. [PMID: 31357852 DOI: 10.23736/s0026-4970.19.04245-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
BACKGROUND The aim of this study was to evaluate dental plaque compositions, vascular endothelial growth factor (VEGF) and hypoxia-inducible factor (HIF) 1-alpha levels in gingival crevicular fluid (GCF) at hypofunctional and normofunctional teeth in healthy individuals and chronic periodontitis patients. METHODS Sixty systemically healthy individuals were enrolled. Study groups were: group 1 hypofunctional healthy group (group 1, N.=15); group 2 hypofunctional periodontitis group (group 2, N.=15); group 3 normofunctional healthy group (group 3, N.=15); and group 4 normofunctional periodontitis group (group 4, N.=15). Clinical periodontal measurements (plaque index, gingival index and clinical attachment level) were recorded. Dental plaque and GCF samples were taken. VEGF and HIF 1-alpha levels in GCF were determined. Subgingival plaque samples were evaluated for 11 different bacterial species as, Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola, Prevotella intermedia, Peptostreptococcus micros, Fusobacterium nucleatum, Campylobacter rectus, Eubacterium nodatum, Eikenella corrodens and Capnocytophaga species. RESULTS Tannerella forsythia, Peptostreptococcus micros, Eubacterium nodatum levels decreased in hypofunctional healthy and periodontitis groups (P<0.05). Porphyromonas gingivalis levels increased in hypofunctional healthy group and decreased in hypofunctional periodontitis group (P<0.05). There was also a decrease in Eikenella corrodens levels in hypofunctional periodontitis group (P<0.05). There were no difference regarding the Aggregatibacter actinomycetemcomitans, Capnocytophaga spp., Prevotella intermedia and Fusobacterium nucleatum levels among the groups (P>0.05). VEGF and HIF-1α levels in both GCF and serum samples were also similar (P>0.05). CONCLUSIONS Within the limits of this study, the authors found that the levels of four significant bacterial strains were decreased in both hypofunctional healthy and hypofunctional periodontitis groups compared to normofunctional equivalents. Though not evaluated in this study, this situation could be due to periodontal ligament atrophy and related physiological alterations.
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Affiliation(s)
- Ozkan Karatas
- Department of Periodontology, Faculty of Dentistry, Tokat Gaziosmanpaşa University, Tokat, Turkey -
| | - Hatice Balci Yuce
- Department of Periodontology, Faculty of Dentistry, Tokat Gaziosmanpaşa University, Tokat, Turkey
| | - Humeyra Aydemir Turkal
- Department of Periodontology, Faculty of Dentistry, Tokat Gaziosmanpaşa University, Tokat, Turkey
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Borekci T, Meseli SE, Noyan U, Kuru BE, Kuru L. Efficacy of adjunctive photodynamic therapy in the treatment of generalized aggressive periodontitis: A randomized controlled clinical trial. Lasers Surg Med 2018; 51:167-175. [DOI: 10.1002/lsm.23010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/21/2018] [Indexed: 12/13/2022]
Affiliation(s)
| | - Suleyman Emre Meseli
- Faculty of Dentistry; Department of Periodontology, Istanbul Aydin University; Istanbul Turkey
| | - Ulku Noyan
- Oral and Dental Healthcare Department; Acıbadem Hospitals; Istanbul Turkey
| | - Bahar Eren Kuru
- Faculty of Dentistry; Department of Periodontology, Yeditepe University; Istanbul Turkey
| | - Leyla Kuru
- Faculty of Dentistry; Department of Periodontology, Marmara University; Istanbul Turkey
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13
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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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14
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Microbiological analysis and the outcomes of periodontal treatment with or without adjunctive systemic antibiotics—a retrospective study. Clin Oral Investig 2018; 22:3031-3041. [DOI: 10.1007/s00784-018-2392-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 02/14/2018] [Indexed: 02/06/2023]
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Mesa F, Lanza E, García L, Marfil-Alvarez R, Magan-Fernandez A. Polymorphism IL-1RN rs419598 reduces the susceptibility to generalized periodontitis in a population of European descent. PLoS One 2017; 12:e0186366. [PMID: 29023524 PMCID: PMC5638498 DOI: 10.1371/journal.pone.0186366] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 10/01/2017] [Indexed: 11/21/2022] Open
Abstract
Interleukin (IL) 1-ra is a potent endogenous competitive inhibitor of IL-α and β and has an anti-inflammatory role. Study objectives were: 1) to assess the associations of IL-1RN genetic single nucleotide polymorphism (SNP) (rs419598) with generalized chronic periodontitis (GCP), generalized aggressive periodontitis (GAgP), and absence of periodontitis and 2) to assess its association with the load of five periodontopathogenic bacteria and periodontal clinical variables. A cross-sectional analytic study was conducted in 123 patients with GCP, 60 patients with GAgP, and 20 controls. Reverse hybridization PCR was used for genotyping analysis to detect SNPs in IL-1A (rs1800587), IL-1B (rs1143634), and IL-1RN (rs419598) genes and for determination of the load of five periodontopathogenic bacteria. The severity and extension of periodontitis were assessed. Multinomial logistic regression and mediated regression analyses were performed. Considering results for GCP and GAgP patients together, the presence of polymorphism in IL-1A and/or IL-1B gene was associated with a higher likelihood of periodontitis, (OR = 8.11; 95%CI [1.85–35.48]), but this likelihood was reduced when IL-1RN polymorphism was also present, (OR = 5.91; 95%CI [1.08–32.27]). IL-1RN polymorphism was significantly associated with lower counts of red complex bacteria, specifically Porphyromona gingivalis, Tannerella forsythia, and Prevotella intermedia, which were associated with improved clinical outcomes. The polymorphic expression of IL-1RN (rs419598) gene may be associated with a reduced susceptibility to GAgP and GCP in populations of European descent. This effect may be mediated by a decreased load of Porphyromona gingivalis, Tannerella forsythia, and Prevotella intermedia.
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Affiliation(s)
- Francisco Mesa
- Periodontology Department, School of Dentistry, University of Granada, Granada, Spain
- * E-mail:
| | | | - Llenalia García
- SEPLIN Statistical Solutions, Spin-Off University of Granada, Granada, Spain
| | - Rafael Marfil-Alvarez
- Periodontology Department, School of Dentistry, University of Granada, Granada, Spain
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16
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Arduino PG, Romano F, Sasia D, Broccoletti R, Ricceri F, Barbui AM, Brossa S, Cipriani R, Cricenti L, Cabras M, Aimetti M. Subgingival Microbiota in White Patients With Desquamative Gingivitis: A Cross-Sectional Study. J Periodontol 2017; 88:643-650. [DOI: 10.1902/jop.2017.160745] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Paolo G. Arduino
- Department of Surgical Sciences, Center for Interdepartmental Research – Dental School, University of Turin, Turin, Italy
| | - Federica Romano
- Department of Surgical Sciences, Center for Interdepartmental Research – Dental School, University of Turin, Turin, Italy
| | - Danilo Sasia
- Department of Surgical Sciences, Center for Interdepartmental Research – Dental School, University of Turin, Turin, Italy
| | - Roberto Broccoletti
- Department of Surgical Sciences, Center for Interdepartmental Research – Dental School, University of Turin, Turin, Italy
| | - Fulvio Ricceri
- Unit of Epidemiology, Regional Health Service Azienda Sanitaria Locale Torino 3, Grugliasco, Italy
| | - Anna Maria Barbui
- Division of Microbiology and Virology, Azienda Ospedaliero University, Città della Salute e della Scienza – Molinette Hospital, Turin, Italy
| | - Silvia Brossa
- Division of Microbiology and Virology, Azienda Ospedaliero University, Città della Salute e della Scienza – Molinette Hospital, Turin, Italy
| | - Raffaella Cipriani
- Division of Microbiology and Virology, Azienda Ospedaliero University, Città della Salute e della Scienza – Molinette Hospital, Turin, Italy
| | - Luca Cricenti
- Department of Surgical Sciences, Center for Interdepartmental Research – Dental School, University of Turin, Turin, Italy
| | - Marco Cabras
- Department of Surgical Sciences, Center for Interdepartmental Research – Dental School, University of Turin, Turin, Italy
| | - Mario Aimetti
- Department of Surgical Sciences, Center for Interdepartmental Research – Dental School, University of Turin, Turin, Italy
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17
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Nickles K, Scharf S, Röllke L, Dannewitz B, Eickholz P. Comparison of Two Different Sampling Methods for Subgingival Plaque: Subgingival Paper Points or Mouthrinse Sample? J Periodontol 2017; 88:399-406. [DOI: 10.1902/jop.2016.160249] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Katrin Nickles
- Department of Periodontology, Center for Dentistry and Oral Medicine (Carolinum), Goethe University, Frankfurt, Germany
| | - Susanne Scharf
- Department of Periodontology, Center for Dentistry and Oral Medicine (Carolinum), Goethe University, Frankfurt, Germany
| | - Lasse Röllke
- Department of Periodontology, Center for Dentistry and Oral Medicine (Carolinum), Goethe University, Frankfurt, Germany
| | - Bettina Dannewitz
- Department of Periodontology, Center for Dentistry and Oral Medicine (Carolinum), Goethe University, Frankfurt, Germany
- Department of Conservative Dentistry; Clinic for Oral, Dental and Maxillofacial Diseases; Heidelberg University; Heidelberg, Germany
| | - Peter Eickholz
- Department of Periodontology, Center for Dentistry and Oral Medicine (Carolinum), Goethe University, Frankfurt, Germany
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18
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O'Brien-Simpson NM, Burgess K, Lenzo JC, Brammar GC, Darby IB, Reynolds EC. Rapid Chair-Side Test for Detection of Porphyromonas gingivalis. J Dent Res 2017; 96:618-625. [PMID: 28182517 DOI: 10.1177/0022034517691720] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Porphyromonas gingivalis is a keystone pathogen of chronic periodontitis, and its intraoral levels have been shown to predict disease progression (activity). An accurate and sensitive chair-side (point of care) test to determine disease activity is critical for early intervention and clinical management of disease. This study aimed to develop a rapid, chair-side, saliva-based detection of P. gingivalis. Monoclonal antibodies (mAbs) to the A1-adhesin domain of the P. gingivalis RgpA-Kgp proteinase-adhesin complex were screened by enzyme-linked immunosorbent assay and microbial flow cytometry, with 2 mAbs shown to recognize all laboratory and clinical strains tested, without significantly cross-reacting with other oral bacteria tested. With these mAbs, an immunochromatographic device was produced and shown in preclinical studies to detect, in inoculated saliva, all P. gingivalis laboratory strains and clinical isolates tested. The device was able to detect ≥1 × 105 P. gingivalis cells/mL. In a patient age- and sex-matched control clinical cohort, P. gingivalis levels in saliva-as measured by real-time polymerase chain reaction-positively correlated with P. gingivalis levels in subgingival plaque ( r = 0.819, P < 0.01) and clinical parameters of disease ( r = 0.633, P < 0.01). A positive device result strongly correlated with P. gingivalis levels >1 × 105 cells/mL in saliva ( r = 0.778, P < 0.001) and subgingival plaque ( r = 0.715, P < 0.001) with sensitivity, specificity, positive/negative predictive values, and accuracy levels of 95.0%, 93.3%, 90.5%, 96.6%, and 94.0%, respectively. The device result also positively correlated ( r = 0.695, P < 0.01) with disease severity as measured by probing depth. Detection of P. gingivalis in saliva was found to be rapid, taking 3 min from sample collection.
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Affiliation(s)
- N M O'Brien-Simpson
- 1 Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Victoria, Australia
| | - K Burgess
- 1 Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Victoria, Australia
| | - J C Lenzo
- 1 Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Victoria, Australia
| | - G C Brammar
- 1 Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Victoria, Australia
| | - I B Darby
- 1 Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Victoria, Australia
| | - E C Reynolds
- 1 Oral Health Cooperative Research Centre, Melbourne Dental School, Bio21 Institute, The University of Melbourne, Victoria, Australia
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19
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Coffey J, Choudhry M, Shlossman M, Makin IRS, Singh VK. Multiplex real-time PCR detection and relative quantification of periodontal pathogens. Clin Exp Dent Res 2016; 2:185-192. [PMID: 29744166 PMCID: PMC5839218 DOI: 10.1002/cre2.37] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 05/24/2016] [Accepted: 06/04/2016] [Indexed: 12/18/2022] Open
Abstract
Periodontitis is a chronic inflammatory disease, which is strongly associated with certain pathogenic bacteria. The aim of this study was to develop a real-time multiplex polymerase chain reaction (PCR) assay to detect and quantify bacterial species associated with periodontitis. We targeted detection and relative quantification of the following five bacterial species relevant to periodontal diseases: Aggregatibacter actinomycetemcomitans, Fusobacterium nucleatum, Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia. The conserved regions of the genome of these species were targeted with oligos and TaqMan probes in real-time PCR assays. The species-specific TaqMan oligos and TaqMan probes showed no cross-amplification, and there was no loss of amplification yield in multiplex real-time PCR assays. All five bacterial targets were amplified analogous to the template concentrations used in these assays. This multiplex real-time PCR strategy could potentially be used to detect the bacterial species in periodontal pockets of patients with periodontal diseases. This assay may also serve as a quick tool for profiling and quantifying bacteria relevant to periodontal diseases and likely be a valuable tool for clinical translational research.
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Affiliation(s)
- Joshua Coffey
- Missouri School of Dentistry and Oral HealthMissouriUSA
| | | | - Marc Shlossman
- Arizona School of Dentistry and Oral Health, A.T. Still University of Health SciencesArizonaUSA
| | - Inder Raj S. Makin
- Arizona School of Dentistry and Oral Health, A.T. Still University of Health SciencesArizonaUSA
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20
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Pavlič A, Matoh U, Rajić V, Petelin M. Effect of Repeated Antimicrobial Photodynamic Therapy in Treatment of Periodontitis Associated with Fanconi Anemia. Photomed Laser Surg 2016; 35:64-68. [PMID: 27626108 DOI: 10.1089/pho.2016.4122] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Periodontal disease is one of common oral manifestations in patients with Fanconi anemia (FA). The aim of the study was to evaluate the effect of photodynamic therapy (PDT) on periodontal clinical and microbial parameters in a patient with FA. MATERIALS AND METHODS For a 16-year-old girl, diagnosed with having FA and periodontal disease, the protocol treatment with duration of 10 months was designed. Every 2 months, thorough oral cavity disinfection was followed by PDT, using photosensitizer phenothiazine chloride activated by a diode laser light. During each visit, periodontal parameters were evaluated: plaque index (PI), gingival index (GI), probing pocket depth (PPD), bleeding on probing (BOP), and clinical attachment level. Simultaneously, the presence of Candida albicans and of five periodontal pathogens was evaluated. RESULTS Clinical results showed improvement in GI, BOP, and PPD during this 10-month period. BOP subsequently reduced from 100% to 79%, 72%, and 60% at 6, 8, and 10 months, respectively. The proportion of sites with PPD of ≥4 mm decreased from 38.7% at the baseline to zero after 10 months. Further, all five bacterial species and C. albicans were reduced significantly. CONCLUSIONS PDT effectively influences periodontal healing and reduces periodontopathogenic bacteria without damaging the patient's tissues.
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Affiliation(s)
- Alenka Pavlič
- 1 Department of Paediatric and Preventive Dentistry, Faculty of Medicine, University of Ljubljana , Ljubljana, Slovenia
| | - Urban Matoh
- 2 Unit of Oral Medicine and Periodontology, Division of Stomatology, University Medical Centre Ljubljana , Ljubljana, Slovenia
| | - Vladan Rajić
- 3 Department of Haematology and Oncology, University Children's Hospital , Ljubljana, Slovenia
| | - Milan Petelin
- 4 Department of Oral Medicine and Periodontology, Faculty of Medicine, University of Ljubljana , Ljubljana, Slovenia
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21
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Penarrocha-Oltra D, Monreal-Bello A, Penarrocha-Diago M, Alonso-Perez-Barquero J, Botticelli D, Canullo L. Microbial Colonization of the Peri-Implant Sulcus and Implant Connection of Implants Restored With Cemented Versus Screw-Retained Superstructures: A Cross-Sectional Study. J Periodontol 2016; 87:1002-11. [DOI: 10.1902/jop.2016.160017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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22
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Joshi VM, Bhat KG, Kugaji MS, Ingalgi PS. Occurrence of Aggregatibacter actinomycetemcomitans in Indian chronic periodontitis patients and periodontally healthy adults. J Indian Soc Periodontol 2016; 20:141-4. [PMID: 27143824 PMCID: PMC4847458 DOI: 10.4103/0972-124x.175171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background: Aggregatibacter actinomycetemcomitans (Aa), an important primary periodontal pathogen, is known for its strong virulence characteristics that cause periodontal disease. We investigated Aa occurrence in Indian individuals using culture and 16 s rDNA polymerase chain reaction (PCR). Materials and Methods: A cross-sectional study with 100 participants each in the healthy and chronic periodontitis (CP) groups was conducted. The subgingival plaque was collected and immediately plated on selective media for Aa. The remaining plaque samples were used for DNA extraction. PCR was performed using specific primers for Aa. Statistical Analysis Used: The detection of bacteria and the clinical parameters between the groups were compared using the Mann–Whitney U-test. For assessing the agreement between the results of anaerobic culture and PCR, Kappa analyses were performed. Results: Aa levels using culture and PCR was 51% and 69% in the CP group and 12% and 30% in the healthy group, respectively. The two groups showed significant differences (P < 0.00001). The detection accuracy of culture and PCR was assessed, and the coefficient of accuracy (k) was highly significant in the healthy (0.3103; P < 0.0001) and CP groups (0.1536; P < 0.0497). Conclusions: Aa was predominantly found in the CP group compared with the healthy group, which is consistent with previous findings. Our results showed that both techniques can be used for detecting Aa. An ideal technique for detecting subgingival microorganisms should be carefully selected depending on the scope of the intended future work.
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Affiliation(s)
- Vinayak Mahableshwar Joshi
- Department of Molecular Biology and Immunology, Maratha Mandal's NGH Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
| | - Kishore Gajanan Bhat
- Department of Molecular Biology and Immunology, Maratha Mandal's NGH Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
| | - Manohar Suresh Kugaji
- Department of Molecular Biology and Immunology, Maratha Mandal's NGH Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
| | - Preeti Shivaji Ingalgi
- Department of Molecular Biology and Immunology, Maratha Mandal's NGH Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
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23
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Lanza E, Magan-Fernandez A, Bermejo B, de Rojas J, Marfil-Alvarez R, Mesa F. Complementary clinical effects of red complex bacteria on generalized periodontitis in a caucasian population. Oral Dis 2016; 22:430-7. [PMID: 26948988 DOI: 10.1111/odi.12471] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/22/2016] [Accepted: 03/01/2016] [Indexed: 01/14/2023]
Abstract
OBJECTIVES To relate five periodontopathogenic bacteria, including the red complex, to the severity, extent, and inflammation of the periodontal lesion in Caucasian patients with generalized aggressive and chronic periodontitis and to explore whether tobacco use is associated with a specific bacterial profile. MATERIALS AND METHODS A cross-sectional and analytic study was conducted in patients with aggressive and chronic periodontitis. Data were gathered on socio-demographic and periodontal variables, and RH-PCR was used to determine subgingival bacterial profile. Linear and logistic regression analyses were performed. RESULTS The study included 60 patients with aggressive and 123 with chronic periodontitis. Total red complex bacteria count was higher in aggressive periodontitis, mainly due to T. denticola (P = 0.015). In both periodontitis types, models showed an association between T. forsythia count and probing depth (B = 0.157, P = 0.030) and between T. denticola count and higher bleeding scores (B = 2.371, P = 0.027). Smoking did not affect the red complex bacteria count in either disease. CONCLUSIONS The prevalence of red complex bacteria was similar between aggressive and chronic periodontitis, but their count was higher in the former. In both diseases, T. forsythia was associated with greater severity and T. denticola with more severe bleeding. Tobacco smoking was not associated with the presence of red complex bacteria in either disease.
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Affiliation(s)
- E Lanza
- Private Periodontology Practice, Malaga, Spain
| | - A Magan-Fernandez
- Periodontology Department, School of Dentistry, University of Granada, Granada, Spain
| | - B Bermejo
- Echevarne Microbiology Laboratory, Malaga, Spain
| | - J de Rojas
- Private Periodontology Practice, Malaga, Spain
| | - R Marfil-Alvarez
- Periodontology Department, School of Dentistry, University of Granada, Granada, Spain
| | - F Mesa
- Periodontology Department, School of Dentistry, University of Granada, Granada, Spain
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24
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Schmalz G, Tsigaras S, Rinke S, Kottmann T, Haak R, Ziebolz D. Detection of five potentially periodontal pathogenic bacteria in peri-implant disease: A comparison of PCR and real-time PCR. Diagn Microbiol Infect Dis 2016; 85:289-294. [PMID: 27142589 DOI: 10.1016/j.diagmicrobio.2016.04.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 03/07/2016] [Accepted: 04/05/2016] [Indexed: 11/26/2022]
Abstract
The aim of this study was to compare the microbial analysis methods of polymerase chain reaction (PCR) and real-time PCR (RT-PCR) in terms of detection of five selected potentially periodontal pathogenic bacteria in peri-implant disease. Therefore 45 samples of healthy, mucositis and peri-implantitis (n = 15 each) were assessed according to presence of the following bacteria using PCR (DNA-strip technology) and RT-PCR (fluorescent dye SYBR green-system): Aggregatibacter actinomycetemcomitans (Aa), Porphyromonas gingivalis (Pg), Treponema denticola (Td), Tanerella forsythia (Tf), and Fusobacterium nucleatum (Fn). There were no significant correlations between the bacterial and disease patterns, so the benefit of using microbiological tests for the diagnosis of peri-implant diseases is questionable. Correlations between the methods were highest for Tf (Kendall's Tau: 0.65, Spearman: 0.78), Fn (0.49, 0.61) and Td (0.49, 0.59). For Aa (0.38, 0.42) and Pg (0.04, 0.04), lower correlation values were detected. Accordingly, conventional semi-quantitative PCR seems to be sufficient for analyzing potentially periodontal pathogenic bacterial species.
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Affiliation(s)
- Gerhard Schmalz
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - Sandra Tsigaras
- Dept. of Preventive Dentistry, Periodontology and Cariology, University Medical Centre Goettingen, Germany
| | - Sven Rinke
- Dental Practice Hanau & Alzenau, Germany; Dept. of Prosthodontics, University Medical Centre Goettingen, Germany
| | | | - Rainer Haak
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany
| | - Dirk Ziebolz
- Dept. of Cariology, Endodontology and Periodontology, University of Leipzig, Germany.
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25
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Maheaswari R, Kshirsagar JT, Lavanya N. Polymerase chain reaction: A molecular diagnostic tool in periodontology. J Indian Soc Periodontol 2016; 20:128-35. [PMID: 27143822 PMCID: PMC4847456 DOI: 10.4103/0972-124x.176391] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 12/16/2015] [Indexed: 12/18/2022] Open
Abstract
This review discusses the principles of polymerase chain reaction (PCR) and its application as a diagnostic tool in periodontology. The relevant MEDLINE and PubMed indexed journals were searched manually and electronically by typing PCR, applications of PCR, PCR in periodontics, polymorphism studies in periodontitis, and molecular techniques in periodontology. The searches were limited to articles in English language and the articles describing PCR process and its relation to periodontology were collected and used to prepare a concise review. PCR has now become a standard diagnostic and research tool in periodontology. Various studies reveal that its sensitivity and specificity allow it as a rapid, efficient method of detecting, identifying, and quantifying organism. Different immune and inflammatory markers can be identified at the mRNA expression level, and also the determination of genetic polymorphisms, thus providing the deeper insight into the mechanisms underlying the periodontal disease.
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Affiliation(s)
- Rajendran Maheaswari
- Department of Periodontics, Tamil Nadu Government Dental College and Hospital, Chennai, Tamil Nadu, India
| | | | - Nallasivam Lavanya
- Department of Periodontics, Tamil Nadu Government Dental College and Hospital, Chennai, Tamil Nadu, India
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26
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Nickles K, Scharf S, Röllke L, Mayer I, Mayer M, Eickholz P. Detection of subgingival periodontal pathogens--comparison of two sampling strategies. Clin Oral Investig 2015; 20:571-9. [PMID: 26193958 DOI: 10.1007/s00784-015-1530-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 07/03/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The aim of the study is to compare detection frequency of periodontal pathogens in patients with aggressive/severe chronic periodontitis using pooled plaque samples from the deepest pockets per quadrant/per sextant. METHODS In 100 patients with aggressive/chronic periodontitis, subgingival plaque was sampled from the deepest pockets per quadrant (MT4) and per sextant (MT6). Plaque samples were taken using two sterile paper points simultaneously. One paper point from each pocket was pooled with the three other paper points of the pockets (MT4). Subsequently, the remaining four paper points were pooled with two paper points from the deepest pockets from the two remaining sextants (MT6). The content of each vial was analyzed with nucleic-acid based methods for Aggregatibacter actinomycetemcomitans, Tannerella forsythia, Porphyromonas gingivalis, Treponema denticola, Prevotella intermedia, Parvimonas micra, Fusobacterium nucleatum, Campylobacter rectus, Eubacterium nodatum, Eikenella corrodens, and Capnocytophaga sp. RESULTS The detection frequency of A. actinomycetemcomitans (MT4/MT6) at 22/24 %, T. forsythia at 93/96 %, P. gingivalis at 78/79 %, T. denticola at 88/90 %, P. intermedia at 40/46 %, P. micra at 75/79 %, F. nucleatum at both 99 %, C. rectus at 84/89 %, E. nodatum at 62/65 %, E. corrodens at 80/87 %, and Capnocytophaga sp. at 49/58 % was higher with MT6 than with MT4. None of these differences were statistically significant. CONCLUSION The detection frequency of the investigated periopathogens was statistically insignificant higher with the sampling method MT6 compared with MT4. CLINICAL RELEVANCE In daily dental practice, the plaque sampling of the deepest pockets per quadrant seems to be sufficient.
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Affiliation(s)
- Katrin Nickles
- Department of Periodontology, Center for Dentistry and Oral Medicine (Carolinum), Johann Wolfgang Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany.
| | - Susanne Scharf
- Department of Periodontology, Center for Dentistry and Oral Medicine (Carolinum), Johann Wolfgang Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany
| | - Lasse Röllke
- Department of Periodontology, Center for Dentistry and Oral Medicine (Carolinum), Johann Wolfgang Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany
| | - Irina Mayer
- , Siesmayerstr. 44, 60323, Frankfurt/Main, Germany
| | - Matthias Mayer
- Department of Periodontology, Center for Dentistry and Oral Medicine (Carolinum), Johann Wolfgang Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany.,, Arndstr. 14, 60325, Frankfurt/Main, Germany
| | - Peter Eickholz
- Department of Periodontology, Center for Dentistry and Oral Medicine (Carolinum), Johann Wolfgang Goethe-University Frankfurt/Main, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany
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Imamura K, Takayama S, Saito A, Inoue E, Nakayama Y, Ogata Y, Shirakawa S, Nagano T, Gomi K, Morozumi T, Akiishi K, Watanabe K, Yoshie H. Evaluation of a novel immunochromatographic device for rapid and accurate clinical detection of Porphyromonas gingivalis in subgingival plaque. J Microbiol Methods 2015; 117:4-10. [PMID: 26159910 DOI: 10.1016/j.mimet.2015.07.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 06/29/2015] [Accepted: 07/02/2015] [Indexed: 12/25/2022]
Abstract
UNLABELLED An important goal for the improved diagnosis and management of infectious and inflammatory diseases, such as periodontitis, is the development of rapid and accurate technologies for the decentralized detection of bacterial pathogens. The aim of this prospective multicenter study was to evaluate the clinical use of a novel immunochromatographic device with monoclonal antibodies for the rapid point-of-care detection and semi-quantification of Porphyromonas gingivalis in subgingival plaque. Sixty-three patients with chronic periodontitis and 28 periodontally healthy volunteers were subjected to clinical and microbiological examinations. Subgingival plaque samples were analyzed for the presence of P. gingivalis using a novel immunochromatography based device DK13-PG-001, designed to detect the 40k-outer membrane protein of P. gingivalis, and compared with a PCR-Invader method. In the periodontitis group, a significant strong positive correlation in detection results was found between the test device score and the PCR-Invader method (Spearman rank correlation, r=0.737, p<0.0001). The sensitivity, specificity, and positive and negative predictive values of the test device were 96.2%, 91.8%, 90.4% and 96.7%, respectively. The detection threshold of the test device was determined to be approximately 10(4) (per two paper points). There were significant differences in the bacterial counts by the PCR-Invader method among groups with different ranges of device scores. With a cut-off value of ≥0.25 in device score, none of periodontally healthy volunteers were tested positive for the subgingival presence of P. gingivalis, whereas 76% (n=48) of periodontitis subjects were tested positive. There was a significant positive correlation between device scores for P. gingivalis and periodontal parameters including probing pocket depth and clinical attachment level (r=0.317 and 0.281, respectively, p<0.01). The results suggested that the DK13-PG-001 device kit can be effectively used for rapid, chair-side detection and semi-quantification of P. gingivalis in subgingival plaque. TRIAL REGISTRATION UMIN Clinical Trials Registry (UMIN-CTR) UMIN000011943.
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Affiliation(s)
- K Imamura
- Department of Periodontology, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - S Takayama
- Department of Periodontology, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - A Saito
- Department of Periodontology, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan.
| | - E Inoue
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-nishi, Matsudo, Chiba 271-8587, Japan
| | - Y Nakayama
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-nishi, Matsudo, Chiba 271-8587, Japan
| | - Y Ogata
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho-nishi, Matsudo, Chiba 271-8587, Japan
| | - S Shirakawa
- Department of Periodontology, Tsurumi University, School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan
| | - T Nagano
- Department of Periodontology, Tsurumi University, School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan
| | - K Gomi
- Department of Periodontology, Tsurumi University, School of Dental Medicine, 2-1-3 Tsurumi, Tsurumi-ku, Yokohama 230-8501, Japan
| | - T Morozumi
- Division of Periodontology, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514, Japan
| | - K Akiishi
- Reagent R&D Department, Denka Seiken Co., Ltd., 1359-1, Kagamida, Kigoshi, Gosen-shi, Niigata 959-1695, Japan
| | - K Watanabe
- Showa Yakuhin Kako Co., Ltd, 4-12-15-19F Ginza, Chuo-ku, Tokyo 104-0061, Japan
| | - H Yoshie
- Division of Periodontology, Department of Oral Biological Science, Niigata University Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514, Japan
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Foitzik M, Stumpp SN, Grischke J, Eberhard J, Stiesch M. Evaluation of FTA ® paper for storage of oral meta-genomic DNA. Biopreserv Biobank 2015; 12:337-42. [PMID: 25340943 DOI: 10.1089/bio.2014.0027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
AIM The purpose of the present study was to evaluate the short-term storage of meta-genomic DNA from native oral biofilms on FTA(®) paper. MATERIALS AND METHODS Thirteen volunteers of both sexes received an acrylic splint for intraoral biofilm formation over a period of 48 hours. The biofilms were collected, resuspended in phosphate-buffered saline, and either stored on FTA(®) paper or directly processed by standard laboratory DNA extraction. The nucleic acid extraction efficiencies were evaluated by 16S rDNA targeted SSCP fingerprinting. The acquired banding pattern of FTA-derived meta-genomic DNA was compared to a standard DNA preparation protocol. Sensitivity and positive predictive values were calculated. RESULTS The volunteers showed inter-individual differences in their bacterial species composition. A total of 200 bands were found for both methods and 85% of the banding patterns were equal, representing a sensitivity of 0.941 and a false-negative predictive value of 0.059. CONCLUSION Meta-genomic DNA sampling, extraction, and adhesion using FTA(®) paper is a reliable method for storage of microbial DNA for a short period of time.
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Affiliation(s)
- Magdalena Foitzik
- Department of Prosthetic Denstiry and Biomedical Materials Science, Hannover Medical School , Hannover, Germany
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Ishii Y, Imamura K, Kikuchi Y, Miyagawa S, Hamada R, Sekino J, Sugito H, Ishihara K, Saito A. Point-of-care detection of Tannerella forsythia using an antigen-antibody assisted dielectrophoretic impedance measurement method. Microb Pathog 2015; 82:37-42. [PMID: 25812473 DOI: 10.1016/j.micpath.2015.03.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 03/14/2015] [Accepted: 03/23/2015] [Indexed: 11/28/2022]
Abstract
UNLABELLED The importance of periodontal treatment planning based on diagnosis with clinical detection of periodontal pathogens has been well recognized. However, reliable detection and quantification methods that can be conveniently used at chair-side have yet to be developed. This study aimed to evaluate the clinical use of a novel apparatus which uses an antigen-antibody reaction assisted dielectrophoretic impedance measurement (AA-DEPIM) for the detection of a prominent periodontal pathogen, Tannerella forsythia. A total of 15 patients with a clinical diagnosis of chronic periodontitis, three periodontally healthy volunteers and two with gingivitis were subjected to clinical and microbiological examinations. Saliva samples were analyzed for the presence of T. forsythia using AA-DEPIM, PCR-Invader and real-time PCR methods. The measurement values for total bacteria and T. forsythia using the prototype AA-DEPIM apparatus were significantly greater in periodontitis group than those in healthy/gingivitis group. Using the AA-DEPIM apparatus with tentative cut-off values, T. forsythia was detected for 14 (12 with periodontitis and 2 either healthy or with gingivitis) out of 20 individuals. The measurement for the detection of T. forsythia by the AA-DEPIM method showed a significant positive correlation with the detection by PCR-Invader (r = 0.541, p = 0.01) and the real-time PCR method (r = 0.834, p = 0.01). When the PCR-Invader method was used as a reference, the sensitivity and specificity of the AA-DEPIM method were 76.5% and 100%, respectively. The results suggested that the AA-DEPIM method has potential to be used for clinically evaluating salivary presence of T. forsythia at chair-side. TRIAL REGISTRATION UMIN Clinical Trials Registry (UMIN-CTR) UMIN000012181.
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Affiliation(s)
- Yoshihito Ishii
- Department of Periodontology, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - Kentaro Imamura
- Department of Periodontology, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - Yuichiro Kikuchi
- Department of Microbiology, Tokyo Dental College, 2-1-14 Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - Satoshi Miyagawa
- Panasonic Healthcare, 2-38-5 Nishishinbashi, Minato-ku, Tokyo 105-8433, Japan
| | - Ryo Hamada
- Panasonic Healthcare, 2-38-5 Nishishinbashi, Minato-ku, Tokyo 105-8433, Japan
| | - Jin Sekino
- Department of Periodontology, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - Hiroki Sugito
- Department of Clinical Oral Health Science, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - Kazuyuki Ishihara
- Department of Microbiology, Tokyo Dental College, 2-1-14 Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan; Oral Health Science Center, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan
| | - Atsushi Saito
- Department of Periodontology, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan; Oral Health Science Center, Tokyo Dental College, 2-9-18 Misaki-cho, Chiyoda-ku, Tokyo 101-0061, Japan.
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Affiliation(s)
- N. Townsend
- Philip Leverhulme Equine Hospital; University of Liverpool; Neston UK
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Untch M, Schlagenhauf U. Inter- and intra-test agreement of three commercially available molecular diagnostic tests for the identification of periodontal pathogens. Clin Oral Investig 2015; 19:2045-52. [DOI: 10.1007/s00784-015-1418-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 01/29/2015] [Indexed: 11/29/2022]
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Real-time PCR quantification of six periodontal pathogens in saliva samples from healthy young adults. Clin Oral Investig 2014; 19:937-46. [PMID: 25217278 DOI: 10.1007/s00784-014-1316-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 09/01/2014] [Indexed: 10/24/2022]
Abstract
OBJECTIVE The use of saliva as a diagnostic fluid for the evaluation of periodontal health has gained attention recently. Most published real-time PCR assays focused on quantification of bacteria in subgingival plaque, not in saliva. The aims of this study were to develop a real-time PCR assay for quantification of six periodontal pathogens in saliva and to establish a relationship between the amount of DNA (fg) and colony-forming unit (CFU). MATERIALS AND METHODS TaqMan primers/probe sets were used for the detection of Aggregatibacter actinomycetemcomitans (Aa), Eikenella corrodens (Ec), Fusobacterium nucleatum (Fn), Porphyromonas gingivalis (Pg), Prevotella intermedia (Pi), Tannerella forsythia (Tf), and total bacteria. Six periodontal pathogens and total bacteria in saliva from 24 periodontally healthy individuals were determined. The relationship between the amount of DNA (fg) and CFU was established by measuring the concentrations of extracted bacterial DNA and CFU per milliliter of bacteria on agar plates. RESULTS Fn, Ec, and Pi were detected in all saliva samples, while 58.5, 45.8, and 33.3% were detected for Tf, Pg, and Aa, respectively. Numbers of Ec and Fn in saliva were highly correlated (R(2) = 0.93, P < 0.01). The values of DNA (fg) per CFU ranged from 64 for Ec to 121 for Pg. CONCLUSION The real-time PCR assay in combination with the relationship between DNA (fg) and CFU can be used to quantitate periodontal pathogens in saliva and estimate the number of live bacteria (CFU). CLINICAL RELEVANCE This real-time PCR assay in combination with the relationship between DNA (fg) and CFU has the potential to be an adjunct in evaluation of periodontal health status.
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Effect of repeated adjunctive antimicrobial photodynamic therapy on subgingival periodontal pathogens in the treatment of chronic periodontitis. Lasers Med Sci 2014; 30:1647-56. [DOI: 10.1007/s10103-014-1632-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 07/08/2014] [Indexed: 12/18/2022]
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Bankur PK, Nayak A, Bhat K, Bankur R, Naik R, Rajpoot N. Comparison of culture and polymerase chain reaction techniques in the identification of Tannerella forsythia in periodontal health and disease, an in vitro study. J Indian Soc Periodontol 2014; 18:155-60. [PMID: 24872621 PMCID: PMC4033879 DOI: 10.4103/0972-124x.131312] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 10/28/2013] [Indexed: 12/03/2022] Open
Abstract
Background and Objectives: Various bacterial species from subgingival biofilm have demonstrated aetiological relevance in the initiation and progression of periodontitis. The aim of this study was to detect the presence of Tannerella forsythia (Tf) in subgingival plaque of periodontally healthy subjects and chronic periodontitis patients by using both culture and PCR technique and compare the two techniques. Materials and Methods: Pooled subgingival plaque samples were taken using sterile curettes from predetermined sites in 50 periodontally healthy subjects and from 50 periodontitis subjects. Samples were analyzed for the presence of T. forsythia using both techniques. Statistical analysis of the results was done using Chi-square test, sensitivity, and specificity tests. Results: Both techniques could detect T. forsythia in subgingival plaque samples from healthy and periodontitis subjects. Periodontally healthy individuals and individuals with chronic periodontitis using the culture technique showed the presence of T. forsythia in 14 and 34%, respectively. PCR technique showed the presence of T. forsythia in 20% healthy and 40% chronic periodontitis patients. T. forsythia detection in the periodontitis group was statistically significantly higher when compared to the healthy group by both culture and PCR technique (P = 0.019 and P = 0.029). PCR demonstrated high sensitivity and low specificity when compared to the culture technique. Conclusion: The results indicated that T. forsythia was more prevalent in periodontitis patients when compared with healthy subjects. The PCR was found to be more sensitive than culture technique for detection of T. forsythia from the subgingival plaque samples.
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Affiliation(s)
- Praveen Kumar Bankur
- Department of Periodontology, Guru Gobind Singh College of Dental Sciences and Research Centre, Burhanpur, Madhya Pradesh, India
| | - Aarati Nayak
- Department of Periodontology, Maratha Mandal's NGH Institute of Dental Sciences and Research Centre, Belgaum, Bangalore, Karnataka, India
| | - Kishore Bhat
- Department of Periodontology, Maratha Mandal's NGH Institute of Dental Sciences and Research Centre, Belgaum, Bangalore, Karnataka, India
| | - Rashmi Bankur
- Department of Oral Pathology, M. R. Ambedkar Dental College and Hospital, Bangalore, Karnataka, India
| | - Reshma Naik
- Department of Oral Pathology, Sathyadeep Dental Clinic, Bangalore, Karnataka, India
| | - Nami Rajpoot
- Department of Periodontology, Maratha Mandal's NGH Institute of Dental Sciences and Research Centre, Belgaum, Bangalore, Karnataka, India
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Canullo L, Penarrocha-Oltra D, Soldini C, Mazzocco F, Penarrocha M, Covani U. Microbiological assessment of the implant-abutment interface in different connections: cross-sectional study after 5 years of functional loading. Clin Oral Implants Res 2014; 26:426-434. [PMID: 24665919 DOI: 10.1111/clr.12383] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2014] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To evaluate the bacterial microflora present inside the implant connection and in the peri-implant sulcus fluid of healthy implants, and to analyze the relationships between these harboring sites for four different implant systems after at least 5 years of functional loading. MATERIALS AND METHODS A cross-sectional study was performed involving 40 patients treated with metal-ceramic cemented bridges supported by at least two healthy implants functionally loaded for 5 years. Four different implant-abutment connections were studied: external hexagon (control group), double internal hexagon (test group 1), internal hexagon with external collar (test group 2), and conical connection (test group 3). Samples for microbiological analysis were obtained from three types of sites: peri-implant sulci, connections' inside and abutments surface and, as control, gingival sulci of neighboring teeth. Quantitative real-time PCR was carried out for Total Bacterial Count and for 10 microorganisms: Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythensis, Treponema denticola, Prevotella intermedia, Peptostreptococcus micros, Fusobacterium nucleatum, Campylobacter rectus, Eikenella corrodens, and Candida albicans. The response variables were percentage of positive sites and absolute bacterial load. The relations of the response variables with the type of connection and of sampling site were assessed using generalized estimating equations. RESULTS Regarding the analysis of positivity to bacteria in the peri-implant sulcus no significant differences were observed. Analyzing the connection's inside, none of the connection designs had the capacity to prevent microbiological leakage through the implant/abutment microgap. Test group 3 presented the lowest mean values for red complex bacteria and control group the highest, although differences were non-significant. Statistical significance was only reached for Treponema denticola in the bacterial load analysis inside the connection. Test groups 1 and 2 yielded lower values for orange complex bacteria but only for Peptostreptococos micros the differences resulted significant. Test groups 2 and 3 had significantly lower total bacterial counts in the peri-implant sulcus and inside the connection. CONCLUSIONS Outcomes suggested that all the analyzed connections resulted contaminated after 5 years of functional loading. However, the connection design might influence bacterial activity levels qualitatively and quantitatively, especially inside the implant connection.
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Affiliation(s)
| | - David Penarrocha-Oltra
- Oral Surgery and Implantology, Stomatology Department, University of Valencia, Valencia, Spain
| | | | | | - Maria Penarrocha
- Department of Oral Surgery, University of Valencia, Valencia, Spain
| | - Ugo Covani
- Department of Prosthodontics, University of Pisa, Pisa, Italy
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Cantore S, Mirgaldi R, Ballini A, Coscia MF, Scacco S, Papa F, Inchingolo F, Dipalma G, De Vito D. Cytokine gene polymorphisms associate with microbiogical agents in periodontal disease: our experience. Int J Med Sci 2014; 11:674-9. [PMID: 24843315 PMCID: PMC4025165 DOI: 10.7150/ijms.6962] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 03/11/2014] [Indexed: 01/29/2023] Open
Abstract
Periodontics has evolved from a simplistic model to a more complex interplay between infection and host response. Genetic factors have been a new addition to the list of risk factors for periodontal diseases. The processes leading to destruction and regeneration of the destroyed tissues are of great interest to both researchers and clinicians. The selective susceptibility of subjects for periodontitis has remained an enigma and wide varieties of risk factors have been implicated for the manifestation and progression of periodontitis. Emerging pathway models suggest that gene-environment interactions are etiologically important in disease pathogenesis. The current practical utility of genetic knowledge in periodontitis is limited. Allelic variants at multiple gene loci probably influence periodontitis susceptibility. The pro-inflammatory cytokine interleukin-1 (IL-1) is a key modulator of host responses to microbial infection and a major modulator of extracellular matrix catabolism and bone resorption, and polymorphisms in the IL-1 gene cluster have been associated with an increased risk of developing severe adult periodontitis. The aim of this study was to test if polymorphisms of genes of IL-1α(+4845) and IL-1β(+3954) were linked with periodontitis, in a case-control study population, delimited to a specific geographic area, in association with microbiological findings. The polymorphisms observed in IL-1α(+4845) and IL-1β(+3954) single nucleotide polymorphisms (SNPs), was significantly different among the study groups (healthy controls, mild, moderate and severe periodontitis with p<0.05, d.f.=1. We found a significant correlation between the severe form of periodontitis and the presence of composite genotype (p < 0.05, d.f.=1, calculated among healthy vs. severe). Furthermore a statistically significant association between the presence of bacteria and periodontitis was detected (p<0.05, d.f.=1). In the current investigation findings were concordant with literature observations.
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Affiliation(s)
- Stefania Cantore
- 1. Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, 70124, Bari, Italy
| | - Rosanna Mirgaldi
- 1. Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, 70124, Bari, Italy
| | - Andrea Ballini
- 1. Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, 70124, Bari, Italy
| | - Maria Franca Coscia
- 1. Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, 70124, Bari, Italy
| | - Salvatore Scacco
- 1. Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, 70124, Bari, Italy
| | - Francesco Papa
- 1. Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, 70124, Bari, Italy
| | - Francesco Inchingolo
- 2. Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, 70124, Bari, Italy
| | - Gianna Dipalma
- 2. Department of Interdisciplinary Medicine, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, 70124, Bari, Italy
| | - Danila De Vito
- 1. Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, 70124, Bari, Italy
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Ballesta-Mudarra S, Machuca-Portillo G, Torres-Lagares D, Rodríguez-Caballero Á, Yáñez-Vico RM, Solano-Reina E, Perea-Pérez E. Determination of periodontopathogens in patients with Cri du chat syndrome. Med Oral Patol Oral Cir Bucal 2013; 18:e883-7. [PMID: 24121919 PMCID: PMC3854081 DOI: 10.4317/medoral.19400] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Accepted: 07/21/2013] [Indexed: 11/26/2022] Open
Abstract
Objectives: Cri du chat syndrome is a genetic alteration associated with some oral pathologies. However, it has not been described previously any clinical relationship between the periodontal disease and the syndrome. The purpose of this comparative study was to compare periodontopathogenic flora in a group with Cri du chat syndrome and another without the síndrome, to assess a potential microbiological predisposition to suffer a periodontitis.
Study Design: The study compared nineteen subjects with Cri du chat Syndrome with a control group of nineteen patients without it. All patients were clinically evaluated by periodontal probing, valuing the pocket depth, the clinical attachmente level and bleeding on probing. There were no significant differences between both groups. Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia, Tannerella forsythia and Treponema denticola were detected by multiplex-PCR using 16S rDNA (microIDENT).
Results: When A. actinomycetemcomitans, P. gingivalis, P. intermedia and T. denticola were compared, no statistically significant differences were found between the two groups (p>0.05). The value of T. forsythia was significantly higher for Cri du chat syndrome (31.6%) than for the control group (5.3%). The odds ratio for T. forsythia was 8.3.
Conclusions: In the present study T. forsythia is associated with Cri du chat syndrome subjects and not with healthy subjects.
Key words:Cri du Chat syndrome, periodontal health, microbiology, special care dentistry.
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Ghijselings E, Coucke W, Verdonck A, Teughels W, Quirynen M, Pauwels M, Carels C, van Gastel J. Long-term changes in microbiology and clinical periodontal variables after completion of fixed orthodontic appliances. Orthod Craniofac Res 2013; 17:49-59. [DOI: 10.1111/ocr.12031] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2013] [Indexed: 12/20/2022]
Affiliation(s)
- E. Ghijselings
- Department of Oral Health Sciences - Orthodontics; KU Leuven & Dentistry, University Hospitals Leuven; Belgium
| | - W. Coucke
- Department of Orthodontics and Craniofacial Biology; Radboud University Nijmegen Medical Centre; Nijmegen The Netherlands
| | - A. Verdonck
- Department of Oral Health Sciences - Orthodontics; KU Leuven & Dentistry, University Hospitals Leuven; Belgium
| | - W. Teughels
- Department of Oral Health Sciences - Periodontology; KU Leuven & Dentistry, University Hospitals Leuven; Belgium
| | - M. Quirynen
- Department of Oral Health Sciences - Periodontology; KU Leuven & Dentistry, University Hospitals Leuven; Belgium
| | - M. Pauwels
- Department of Oral Health Sciences - Periodontology; KU Leuven & Dentistry, University Hospitals Leuven; Belgium
| | - C. Carels
- Department of Oral Health Sciences - Orthodontics; KU Leuven & Dentistry, University Hospitals Leuven; Belgium
- Department of Quality of Medical Laboratories; Scientific Institute of Public Health; Brussels Belgium
| | - J. van Gastel
- Department of Oral Health Sciences - Orthodontics; KU Leuven & Dentistry, University Hospitals Leuven; Belgium
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Hattarki SA, Pushpa SP, Bhat K. Evaluation of the efficacy of green tea catechins as an adjunct to scaling and root planing in the management of chronic periodontitis using PCR analysis: A clinical and microbiological study. J Indian Soc Periodontol 2013; 17:204-9. [PMID: 23869127 PMCID: PMC3713752 DOI: 10.4103/0972-124x.113071] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Accepted: 02/27/2013] [Indexed: 11/11/2022] Open
Abstract
Background: Increased knowledge of anaerobic bacteria in the development of periodontal diseases has led to new treatment strategies aiming primarily at suppression or elimination of specific periodontal pathogens. Over the last few decades, green tea has been subjected to many scientific and medical studies. Aim: The purpose of the present study was to assess the effect of green tea catechins on the red complex organisms using Polymerase Chain Reaction for microbiological analysis. Materials and Methods: A split mouth study was conducted, in which a total of 20 subjects were included. Green tea catechin as local drug delivery was placed at study sites. Clinical parameters namely probing pocket depth (PPD), gingival index (GI), plaque index (PI) were recorded. Sub-gingival plaque samples were collected, and red complex micro-organisms were studied using PCR. Clinical and microbiological parameters were recorded at baseline, 1st, and 5th week after treatment. Results: The results showed statistically significant difference in PPD, GI, and PI and significant reduction of red complex organisms from baseline to 1st week and baseline to 5th week in both study and control groups (P < 0.001). Intergroup comparison between study and control group was statistically insignificant for PPD, PI, and GI. A significantly greater reduction in Tannerella forsythus (Tf) at 1st week and 5th week and Porphyromonas gingivalis (Pg) at 1st week was observed in study group when compared to control group. Conclusion: Green tea catechin can be used as an effective local drug delivery along with scaling and root planing in treatment of chronic periodontitis.
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Affiliation(s)
- Sanjeevini A Hattarki
- Department of Periodontics, Maratha Mandal's Nathajirao G. Halgekar's Institute of Dental Sciences and Research Centre, Belgaum, Karnataka, India
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Gadagi JS, Chava VK, Reddy VR. Green tea extract as a local drug therapy on periodontitis patients with diabetes mellitus: A randomized case-control study. J Indian Soc Periodontol 2013; 17:198-203. [PMID: 23869126 PMCID: PMC3713751 DOI: 10.4103/0972-124x.113069] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Accepted: 02/26/2013] [Indexed: 11/04/2022] Open
Abstract
Background: The green tea extract is a naturally occurring product having beneficial effects that counteract with the pathobiological features of periodontitis and diabetes mellitus. Hence, the present study was aimed at incorporation of green tea extract into hydroxylpropyl methylcellulose and investigates its efficacy in chronic periodontitis patients associated with and without diabetes mellitus. Materials and Methods: For the in vitro study, formulation of green tea strips and placebo strips, and analysis of drug release pattern from the green tea strips at different time intervals were performed. For the in vivo study, 50 patients (20-65 years), including 25 systemically healthy patients with chronic periodontitis (group 1) and 25 diabetic patients with chronic periodontitis (group 2) were enrolled. In each patient, test and control sites were identified for the placement of green tea and placebo strips, respectively. Gingival Index (GI), Probing Pocket Depth (PPD), and Clinical Attachment Level (CAL) were examined at baseline, first, second, third, and fourth weeks. Microbiological analysis for Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans was performed at baseline and fourth week. Results: The in vitro study showed 10.67% green tea release at 30 min; thereafter, a slow release was noted till 120 min. In vivo study: Both groups showed significant reduction in GI scores at the test sites. Group 1 showed significant (P < 0.001) PPD reduction at different time intervals at the test sites. However, group 2 showed significant reduction from baseline (5.30 ± 0.70) to fourth week (3.5 ± 0.97). Statistically significant gain in CAL at the test sites was observed both in group 1 (1.33 mm) and group 2 (1.43 mm). The prevalence of P. gingivalis in group 1 test sites was significantly reduced from baseline (75%) to fourth week (25%). Conclusions: Local drug delivery using green tea extract could be used as an adjunct in the treatment of chronic periodontitis in diabetic and non-diabetic individuals.
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Affiliation(s)
- Jayaprakash S Gadagi
- Department of Periodontics, Vishnu Dental College, Kovvada, Vishnupuram, Bhimavaram, West Godavari, Andhra Pradesh, India
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Bertl K, Zatorska B, Leonhard M, Rechenmacher-Strauss J, Roesner I, Schneider-Stickler B. Oral microbial colonization in laryngectomized patients as a possible cofactor of biofilm formation on their voice prostheses. J Clin Periodontol 2013; 40:833-40. [DOI: 10.1111/jcpe.12131] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/03/2013] [Indexed: 10/26/2022]
Affiliation(s)
- Kristina Bertl
- Division of Oral Surgery; Bernhard Gottlieb School of Dentistry; Medical University of Vienna; Vienna Austria
| | - Beata Zatorska
- Division of Phoniatrics-Logopedics; Department of Otorhinolaryngology; Medical University of Vienna; Vienna Austria
| | - Matthias Leonhard
- Division of Phoniatrics-Logopedics; Department of Otorhinolaryngology; Medical University of Vienna; Vienna Austria
| | - Julia Rechenmacher-Strauss
- Division of Phoniatrics-Logopedics; Department of Otorhinolaryngology; Medical University of Vienna; Vienna Austria
| | - Imme Roesner
- Division of Phoniatrics-Logopedics; Department of Otorhinolaryngology; Medical University of Vienna; Vienna Austria
| | - Berit Schneider-Stickler
- Division of Phoniatrics-Logopedics; Department of Otorhinolaryngology; Medical University of Vienna; Vienna Austria
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Periodontopathogen profile of healthy and oral lichen planus patients with gingivitis or periodontitis. Int J Oral Sci 2013; 5:92-7. [PMID: 23743616 PMCID: PMC3707073 DOI: 10.1038/ijos.2013.30] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Accepted: 04/22/2013] [Indexed: 12/20/2022] Open
Abstract
Oral lichen planus (OLP) is a chronic inflammatory disease that is frequently detected in oral tissues. The aim of our study was to identify the prevalence of the detection of periodontopathogenic microorganisms (Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia, Tannerella forsythia and Treponema denticola in OLP patients and to compare with this prevalence of periodontopathogenic microorganisms in healthy non-OLP patients. Our study included 27 (18 chronic periodontitis (OLPP) and 9 gingivitis (OLPG)) patients diagnosed with OLP along with 26 (13 chronic periodontitis (HP) and 13 gingivitis (HG)) healthy non-OLP patients. The multiplex polymerase chain reaction (PCR) with subsequent reverse hybridization method (micro-IDent) was used for identifying periodontopathogenic microorganisms present in subgingival plaque samples. The percentages of detection for A. actinomycetemcomitans, P. gingivalis, P. intermedia, T. forsythia and T. denticola in subgingival plaque samples taken from OLP patients (OLPG and OLPP) were 18.5%, 85.1%, 81.4%, 88.8% and 74%, respectively. Meanwhile, in the non-OLP patients (HG and HP), these values were 7.6%, 50%, 46.1%, 73% and 57.7%, respectively. Thus, comparing the non-OLP groups with the OLP groups, the periodontopathogens' percentages of detection in the OLP groups were higher than those in the non-OLP groups. According to our study results, OLP patients have higher levels of infection with A. actinomycetemcomitans, P. gingivalis, P. intermedia, T. forsythia and T. denticola than non-OLP patients. We argue that the high percentages in patients with OLP may help identify the importance of periodontopathogenic microorganisms in the progress of periodontal diseases of OLP.
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Chitsazi MT, Kashefimehr A, Pourabbas R, Shirmohammadi A, Ghasemi Barghi V, Daghigh Azar B. Efficacy of Subgingival Application of Xanthan-based Chlorhexidine Gel Adjunctive to Full-mouth Root Planing Assessed by Real-time PCR: A Microbiologic and Clinical Study. J Dent Res Dent Clin Dent Prospects 2013; 7:95-101. [PMID: 23875088 PMCID: PMC3713868 DOI: 10.5681/joddd.2013.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2012] [Accepted: 10/21/2012] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND AND AIMS The aim of this clinical investigation was to compare clinical and microbiological effectiveness of adjunctive CHX gel in the treatment of periodontitis. MATERIALS AND METHODS Twenty-four subjects with localized or generalized moderate-to-severe chronic periodontitis underwent scaling and root planing. One tooth in each quadrant with a probing depth of >4 mm was chosen for combined gel and SRP, with contralateral tooth as control (SRP treated site). Clinical assessment was carried out at baseline and 1 and 3 months later; microbial assessment was performed by real-time PCR. Periodontal probing depth (PPD) was considered as primary outcome. RESULTS Twenty patients completed the study. Baseline PPDs were 4.90±0.78 and 5.05±0.79 in the SRP and gel groups, respectively (P>0.05), which decreased to 3.67±0.59 and 3.7±0.83 one month after treatment and 3.25±0.65 and 3.38±0.79 three months after treatment. Although values decreased significantly in both groups after one and three months (P=0.001 in the SRP and P=0.001 in the gel group), the inter-group difference was not significant neither at one-month (P=0.47) nor at three-month (P=0.77) intervals. The only clinical parameters exhibiting statistically significant inter-group differences was BOP in both one-month (P=0.004) and three-month (P=0.0001) intervals. All the other clinical measurements showed significant decreases after one and three months in both sites but without inter-group differences. CONCLUSION Subgingival application of xanthan chlorhexidine gel combined with scaling and root planing reduced bleed-ing of periodontal pockets. Clinical trials to evaluate effectiveness of this gel in aggressive and severe periodontitis modified by systemic factors are suggested.
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Affiliation(s)
- Mohammad Taghi Chitsazi
- Associate Professor, Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Atabak Kashefimehr
- Assistant Professor, Department of Periodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Pourabbas
- Professor, Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Adileh Shirmohammadi
- Associate Professor, Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vadood Ghasemi Barghi
- Post-graduate Student, Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Reichert S, Haffner M, Keyßer G, Schäfer C, Stein JM, Schaller HG, Wienke A, Strauss H, Heide S, Schulz S. Detection of oral bacterial DNA in synovial fluid. J Clin Periodontol 2013; 40:591-8. [DOI: 10.1111/jcpe.12102] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2013] [Indexed: 01/30/2023]
Affiliation(s)
- Stefan Reichert
- University School of Dental Medicine; Department of Operative Dentistry and Periodontology; Martin-Luther University Halle-Wittenberg; Halle (Saale) Germany
| | - Maximilian Haffner
- University School of Dental Medicine; Department of Operative Dentistry and Periodontology; Martin-Luther University Halle-Wittenberg; Halle (Saale) Germany
| | - Gernot Keyßer
- Clinic of Internal Medicine II; Martin-Luther University Halle-Wittenberg; Halle Germany
| | - Christoph Schäfer
- Clinic of Internal Medicine II; Martin-Luther University Halle-Wittenberg; Halle Germany
| | - Jamal M. Stein
- Department of Operative Dentistry; Periodontology and Preventive Dentistry; RWTH Aachen; Aachen Germany
| | - Hans-Guenter Schaller
- University School of Dental Medicine; Department of Operative Dentistry and Periodontology; Martin-Luther University Halle-Wittenberg; Halle (Saale) Germany
| | - Andreas Wienke
- Institute for Medical Epidemiology; Biostatistics and Informatics; Martin-Luther University Halle-Wittenberg; Halle Germany
| | - Heiko Strauss
- Institute for Forensic Medicine; Martin-Luther University Halle-Wittenberg; Halle Germany
| | - Steffen Heide
- Institute for Forensic Medicine; Martin-Luther University Halle-Wittenberg; Halle Germany
| | - Susanne Schulz
- University School of Dental Medicine; Department of Operative Dentistry and Periodontology; Martin-Luther University Halle-Wittenberg; Halle (Saale) Germany
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45
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Do T, Devine D, Marsh PD. Oral biofilms: molecular analysis, challenges, and future prospects in dental diagnostics. Clin Cosmet Investig Dent 2013; 5:11-9. [PMID: 23674928 PMCID: PMC3652372 DOI: 10.2147/ccide.s31005] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Oral biofilms are functionally and structurally organized polymicrobial communities that are embedded in an extracellular matrix of exopolymers on mucosal and dental surfaces. These biofilms are found naturally in health, and provide benefits to the host. However, this relationship can break down, and disease can occur; disease is associated with a shift in the balance of the species within these biofilms. Simple diagnostic tests have been developed that involve the culture of selected bacteria, eg, those implicated in dental caries, facilitating an assessment of risk of further disease in individual patients. However, oral diseases have a complex etiology, and because only around 50% of oral biofilm can be grown at present, culture-independent molecular-based approaches are being developed that give a more comprehensive assessment of the presence of a range of putative pathogens in samples. The diversity of these biofilms creates challenges in the interpretation of findings, and future work is investigating the ability of novel techniques to detect biological activity and function in oral biofilms, rather than simply providing a catalogue of microbial names.
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Affiliation(s)
- Thuy Do
- Department of Oral Biology, Leeds Dental Institute, Leeds
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46
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Gölz L, Reichert C, Dirk C, Jäger A. Retrospective investigation of gingival invaginations: Part II: microbiological findings and genetic risk profile. J Orofac Orthop 2012; 73:387-96. [PMID: 22955578 DOI: 10.1007/s00056-012-0098-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Accepted: 03/21/2012] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND OBJECTIVE Gingival invaginations are a frequent finding during tooth extraction and following orthodontic space closure. Based on the interdental localization and sometimes pronounced depth, it has been suggested that a gingival invagination may impede oral hygiene. In Part I of this series, the time until active tooth movement and the localization of extraction were identified as potential risk factors for the development of gingival invagination. The aims of the present study were the analysis of the microbial spectrum of a gingival invagination in comparison with pool samples of the sulcus of Ramfjord teeth, on the one hand, and the importance of genetic variations of the pro-inflammatory mediator interleukin-1 (IL-1) and its receptor antagonist (IL-1-RN), on the other hand. In addition, a possible role of smoking as a risk factor was evaluated. SUBJECTS AND METHODS A total of 30 patients with (n=16) and without (n=14) gingival invagination were examined for the presence of eleven periodontal pathogen bacterial species with a commercially available test (micro-IDent®Plus, Hain Lifescience, Nehren, Germany). The genetic evaluation was performed with the GenoType® IL-1 test (Hain Lifescience). RESULTS The results of the microbiological analysis of gingival invaginations showed that the bacterial flora might differ or even be higher than the pool sample from sulcus regions. The genetic evaluation demonstrated that in the group without gingival invagination only 14% showed an IL-1 polymorphism, whereas this value was twice as high (35%) in the group with gingival invagination. In addition, a combination of both polymorphisms IL-1 and IL-1-RN was only found in patients with gingival invagination (25%). Interestingly, smoking patients showed a significant increase of the severity of the gingival invagination. CONCLUSION This retrospective study demonstrated that gingival invagination might be accompanied with an altered microbiological bacterial spectrum and a genetic IL-1 polymorphism. In addition, smoking was identified as another potential risk factor for the severity of gingival invaginations.
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Affiliation(s)
- Lina Gölz
- Poliklinik für Kieferorthopädie, Rheinische Friedrich-Wilhelms-Universität Bonn, Welschnonnenstr. 17, 53111, Bonn, Deutschland.
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Pejda S, Varga ML, Milosevic SA, Mestrovic S, Slaj M, Repic D, Bosnjak A. Clinical and microbiological parameters in patients with self-ligating and conventional brackets during early phase of orthodontic treatment. Angle Orthod 2012; 83:133-9. [PMID: 22765511 DOI: 10.2319/010412-8.1] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE To determine the effect of different bracket designs (conventional brackets and self-ligating brackets) on periodontal clinical parameters and periodontal pathogens in subgingival plaque. MATERIAL AND METHODS The following inclusion criteria were used: requirement of orthodontic treatment plan starting with alignment and leveling, good general health, healthy periodontium, no antibiotic therapy in the previous 6 months before the beginning of the study, and no smoking. The study sample totaled 38 patients (13 male, 25 female; mean age, 14.6 ± 2.0 years). Patients were divided into two groups with random distribution of brackets. Recording of clinical parameters was done before the placement of the orthodontic appliance (T0) and at 6 weeks (T1), 12 weeks (T2), and 18 weeks (T3) after full bonding of orthodontic appliances. Periodontal pathogens of subgingival microflora were detected at T3 using a commercially available polymerase chain reaction test (micro-Dent test) that contains probes for Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia, Tannerella forsythia, and Treponema denticola. RESULTS There was a statistically significant higher prevalence of A actinomycetemcomitans in patients with conventional brackets than in patients with self-ligating brackets, but there was no statistically significant difference for other putative periodontal pathogens. The two different types of brackets did not show statistically significant differences in periodontal clinical parameters. CONCLUSION Bracket design does not seem to have a strong influence on periodontal clinical parameters and periodontal pathogens in subgingival plaque. The correlation between some periodontal pathogens and clinical periodontal parameters was weak.
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Affiliation(s)
- Slavica Pejda
- School of Medicine, University of Split, Split, Croatia.
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Cox A, Dixon P, Smith S. Histopathological lesions associated with equine periodontal disease. Vet J 2012; 194:386-91. [PMID: 22633827 DOI: 10.1016/j.tvjl.2012.04.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Revised: 04/15/2012] [Accepted: 04/20/2012] [Indexed: 11/30/2022]
Abstract
Equine periodontal disease (EPD) is a common and painful condition, the aetiology and pathology of which are poorly understood. To characterise the histopathological lesions associated with EPD, the skulls of 22 horses were assessed grossly for the presence of periodontal disease, and a standard set of interdental tissues taken from each for histopathological examination. Histological features of EPD included ulceration and neutrophilic inflammation of the gingival epithelium. Mononuclear and eosinophilic inflammation of the gingival lamina propria and submucosa was commonly present irrespective of the presence or degree of periodontal disease. Gingival hyperplasia was present to some degree in all horses, and was only weakly associated with the degree of periodontal disease. In all horses dental plaque was present at the majority of sites examined and was often associated with histological evidence of peripheral cemental erosion. Bacteria (including spirochaetes in four horses) were identified in gingival samples by Gram and silver impregnation techniques and were significantly associated with the presence of periodontal disease. This is the first study to describe histological features of EPD, and the first to identify associated spirochaetes in some cases. Histological features were variable, and there was considerable overlap of some features between the normal and diseased gingiva. Further investigation into the potential role of bacteria in the pathogenesis and progression of EPD is warranted.
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Affiliation(s)
- Alistair Cox
- Veterinary Pathology Unit, University of Edinburgh, Easter Bush Veterinary Centre, Roslin, Midlothian EH25 9RG, UK
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Didilescu AC, Rusu D, Anghel A, Nica L, Iliescu A, Greabu M, Bancescu G, Stratul SI. Investigation of six selected bacterial species in endo-periodontal lesions. Int Endod J 2011; 45:282-93. [DOI: 10.1111/j.1365-2591.2011.01974.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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50
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Leonhardt Å, Carlén A, Bengtsson L, Dahlén G. Detection of periodontal markers in chronic periodontitis. Open Dent J 2011; 5:110-5. [PMID: 21769304 PMCID: PMC3136968 DOI: 10.2174/1874210601105010110] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Revised: 03/19/2011] [Accepted: 04/08/2011] [Indexed: 11/22/2022] Open
Abstract
The aim was to compare the detection frequency of periodontopathogens by using the Pado Test 4.5 and checkerboard DNA-DNA hybridization technique in chronic periodontitis patients.Thirty patients with chronic periodontitis were tested cross-sectionally with DNA/RNA oligogenomic probe method (IAI Pado Test 4.5) and DNA/DNA whole genomic probe (checkerboard) method. Samples were taken by two paper points at the deepest site in each of the four quadrants and pooled into one sample for each of the two methods. The samples were sent to the two laboratories (IAI, Zuchwil, Switzerland, and Oral Microbiology Laboratory, University of Gothenburg, Sweden) and were analyzed in a routine setting for the presence and amount of Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythia and Treponema denticola.While Pado Test 4.5 detected the four periodontal pathogens in 11 (36.7%) of the patients, the checkerboard method showed presence in all patients (100%) using the lower score (Score 1 corresponding to 10(4) bacterial cells) and 16 (53.3%) using a higher treshold (score 3 corresponding to between >10(5) and 10(6) cells).The results of the present study showed low agreement for a positive microbiological outcome using the two diagnostic methods. It was also concluded that microbiological analysis in practice should include a larger number of bacterial species to better serve as markers for a diseased associated flora in chronic periodontitis cases.
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Affiliation(s)
- Åsa Leonhardt
- Student Clinic, Public Dental Health Service, Västra Götaland Region, Sweden
| | - Anette Carlén
- Department of Oral Microbiology, Institute of Odontology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Lisbeth Bengtsson
- Department of Oral Microbiology, Institute of Odontology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Gunnar Dahlén
- Department of Oral Microbiology, Institute of Odontology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
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