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Aviv S, Alin Y, Neta L, Yael H, Lada Z, Avia FN, Diana R, Moti M, David P. Elimination of E. faecalis with NaOCl versus chlorhexidine gluconate from primary molar root canal systems: an ex vivo model study. Clin Oral Investig 2024; 28:265. [PMID: 38652209 PMCID: PMC11039510 DOI: 10.1007/s00784-024-05621-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/13/2024] [Indexed: 04/25/2024]
Abstract
OBJECTIVES This ex vivo human study aimed to evaluate the efficacy of NaOCl and chlorhexidine gluconate (CHG) irrigations in eliminating Enterococcus faecalis from the RCS of primary molars. MATERIALS AND METHODS Disinfected extracted primary molars were inoculated with E. faecalis for 24 h. Then, the RCS samples were then irrigated with either 2.5% NaOCl, 0.2% and 2% CHG, or sham saline. The samples were collected immediately after irrigation; and 24 h later, the bacterial viability and counts were measured using blood agar and qRT-PCR, respectively. Histological sections were used to measure E. faecalis penetration and viability in dentin tubules using fluorescence microscopy. RESULTS The recovery of viable E. faecalis after the irrigation of the primary molars showed more significant bactericidal effects of NaOCl and 0.2% and 2% CHG than of saline. Immediately after the irrigation, the NaOCl group showed the greatest reduction in E. faecalis; and 24 h later, all the groups had lower viable E. faecalis than the saline control. The bacterial penetration was also lowest in the NaOCl group, although there was no difference in bacterial viability in the tubules between the groups. CONCLUSION In primary teeth, NaOCl and CHG showed similar degrees of bacterial elimination efficacy in terms of E.faecalis. CLINICAL RELEVANCE Within the limitations of this study, NaOCl and CHG have the similar ability to perform endodontic irrigation of primary ex vivo teeth regarding the elimination of E.faecalis, but NaOCl penetrates dentin tubules better.
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Affiliation(s)
- Shmueli Aviv
- Department of Pediatric Dentistry, Faculty of Dental Medicine, Hadassah Medical Center, Hebrew University, P.O. Box 12272, Jerusalem, 91120, Israel
| | - Yaya Alin
- "Bina" Program, Faculty of Dental Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
- In private practice, Jerusalem, Israel
| | - Lam Neta
- Department of Pediatric Dentistry, Faculty of Dental Medicine, Hadassah Medical Center, Hebrew University, P.O. Box 12272, Jerusalem, 91120, Israel
| | - Haim Yael
- Department of Pediatric Dentistry, Faculty of Dental Medicine, Hadassah Medical Center, Hebrew University, P.O. Box 12272, Jerusalem, 91120, Israel
| | - Zamsky Lada
- Department of Pediatric Dentistry, Faculty of Dental Medicine, Hadassah Medical Center, Hebrew University, P.O. Box 12272, Jerusalem, 91120, Israel
| | - Fux Noy Avia
- Department of Pediatric Dentistry, Faculty of Dental Medicine, Hadassah Medical Center, Hebrew University, P.O. Box 12272, Jerusalem, 91120, Israel
| | - Ram Diana
- Department of Pediatric Dentistry, Faculty of Dental Medicine, Hadassah Medical Center, Hebrew University, P.O. Box 12272, Jerusalem, 91120, Israel
| | - Moskovitz Moti
- Department of Pediatric Dentistry, Faculty of Dental Medicine, Hadassah Medical Center, Hebrew University, P.O. Box 12272, Jerusalem, 91120, Israel
| | - Polak David
- Department of Periodontology, Faculty of Dental Medicine, Hadassah Medical Center, Hebrew University, Jerusalem, Israel.
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Teja KV, Janani K, Srivastava KC, Shrivastava D, Natoli V, Di Blasio M, Cicciu M, Minervini G. Comparative evaluation of antimicrobial efficacy of different combinations of calcium hydroxide against Enterococcus faecalis. BMC Oral Health 2023; 23:849. [PMID: 37951871 PMCID: PMC10638705 DOI: 10.1186/s12903-023-03552-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 10/19/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND The study aims to compare the synergistic antibacterial efficacy of different combinations of calcium hydroxide as an intracanal medicament against E. faecalis. MATERIAL AND METHODS The current study included four hundred extracted human permanent mandibular premolar teeth. After complete chemo-mechanical preparation, the middle third of the root was sectioned using a rotary diamond disc and a total of 400 samples were obtained. The specimens were inoculated with E. faecalis for 21 days. After that, specimens were divided into five groups (n = 80) based on materials used for the disinfection of samples: Group I, calcium hydroxide alone; Group II, calcium hydroxide + 2% chlorhexidine gel; Group III, calcium hydroxide + 2% chitosan gel; Group IV, calcium hydroxide + 0.02% silver nanoparticle gel; Group V, calcium hydroxide + Bioactive glass S53P4. Dentin shavings from the apical third were obtained from the inner third of dentin were obtained using gates glidden no.1 to the apical depth, followed by no.2, 3, 4 and 5 analyzed for E. faecalis using the culture method. One-way analysis of variance (ANOVA) was used for data analysis, followed by post-hoc Tukey's test for multiple comparisons of means to check the difference in bacterial inhibition between the groups. RESULTS ANOVA results revealed a significant reduction of bacterial counts in all the groups compared (p < 0.001). Intergroup comparison showed maximum bacterial reduction (p < 0.001) with calcium hydroxide + bioactive glass S53P4 compared with other groups. CONCLUSION Synergistic effect of calcium hydroxide showed better bacterial reduction compared to calcium hydroxide alone. Among the combinations evaluated, calcium hydroxide with bioactive glass, found to be most effective compared to other groups.
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Affiliation(s)
- Kavalipurapu Venkata Teja
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College & Hospitals, Saveetha University, Chennai, Tamilnadu, India
| | - Krishnamchari Janani
- Department of Conservative Dentistry and Endodontics, SRM Dental College, Ramapuram, Chennai, Tamilnadu, India
| | - Kumar Chandan Srivastava
- Department of Oral & Maxillofacial Surgery & Diagnostic Sciences, College of Dentistry, Jouf University, 72345, Sakaka, Saudi Arabia.
| | - Deepti Shrivastava
- Department of Preventive Dentistry, College of Dentistry, Jouf University, 72345, Sakaka, Saudi Arabia.
- Department of Periodontics, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, 602105, India.
| | - Valentino Natoli
- Department of Dentistry, School of Biomedical and Health Sciences, European University of Madrid, 28670, Madrid, Spain
| | - Marco Di Blasio
- Department of Medicine and Surgery, University Center of Dentistry, University of Parma, 43126, Parma, Italy.
| | - Macro Cicciu
- Department of Biomedical and Surgical and Biomedical Sciences, Catania University, 95123, Catania, Italy
| | - Giuseppe Minervini
- Multidisciplinary Department of Medical-Surgical and Odontostomatological Specialties, University of Campania "Luigi Vanvitelli", 80121, Naples, Italy
- Saveetha Dental College & Hospitals Saveetha Institute of Medical & Technical Sciences Saveetha University, Saavetha Dental College, Chennai, India
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Altitinchi A, Schweizer A, Dean K, Lawson N, Sulaiman T, Fouad AF. An Ex-Vivo Model for Investigating Bacterial Extrusion from Infected Root Canals during Masticatory Function. J Endod 2023; 49:1553-1558. [PMID: 37611655 DOI: 10.1016/j.joen.2023.08.008] [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: 01/25/2021] [Revised: 07/24/2023] [Accepted: 08/13/2023] [Indexed: 08/25/2023]
Abstract
INTRODUCTION The extrusion of bacteria from infected root canals may lead to increase in symptoms, expansion of periapical lesions, and contribution to systemic diseases. The aim of this study is to investigate a potential proof-of-concept model to study the extent to which bacteria can escape from infected root canals under dynamic loading (simulated chewing). METHODS The study was completed in 2 experiments performed at 2 institutions. Biofilms of Streptococcus intermedius in the first experiment and S. intermedius and Actinomyces naeslundii were allowed to grow in root canals of single-rooted extracted teeth for 3 weeks. The roots of the teeth were suspended in a small chamber containing dental transport medium and were mounted on a lower sample holder of a chewing simulator. In the experimental group, simulated chewing cycles equivalent to 1 year of function were conducted, and then bacterial migration was quantified and compared with stationary teeth. RESULTS All experimental samples of the loading group revealed bacterial penetration in both experiments. Several of the unloaded samples revealed no bacterial penetration. In the first experiment, a significantly higher number of bacteria were able to escape into the periapex of the loaded group compared with the unloaded group (P = .017). In the second experiment, there was no significant difference between the 2 bacterial species used in the amount of extruded bacteria; however, there was a highly significant effect for occlusal loading (P = .0001). CONCLUSIONS The potential for occlusal forces to enhance bacterial extrusion from infected root canals should be further explored.
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Affiliation(s)
- Ali Altitinchi
- Department of Endodontics, School of Dentistry, University of Alabama at Birmingham, Birmingham, Alabama
| | - Andrew Schweizer
- Department of Endodontics, School of Dentistry, University of Alabama at Birmingham, Birmingham, Alabama
| | - Kimberly Dean
- Department of Endodontics, School of Dentistry, University of Alabama at Birmingham, Birmingham, Alabama
| | - Nathaniel Lawson
- Division of Biomaterials, School of Dentistry, University of Alabama at Birmingham, Birmingham, Alabama
| | - Taiseer Sulaiman
- Division of Comprehensive Oral Health, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Ashraf F Fouad
- Department of Endodontics, School of Dentistry, University of Alabama at Birmingham, Birmingham, Alabama.
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Kövér Z, Johansen Nordskag V, Bán Á, Gajdács M, Urbán E. The role of Actinomyces spp. and related organisms in cervicofacial infections: Pathomechanism, diagnosis and therapeutic aspects. Anaerobe 2023; 82:102767. [PMID: 37482285 DOI: 10.1016/j.anaerobe.2023.102767] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/26/2023] [Accepted: 07/20/2023] [Indexed: 07/25/2023]
Abstract
Members of the Actinomyces genus and Actinomyces-like organisms (ALOs; namely Actinotignum, Arcanobacterium, Schaalia and Varibaculum) are Gram-positive, non-spore-forming rods that are commensal members of the human oral cavity, gastrointestinal tract, female genital tract and skin microbiota. Cervicofacial actinomycosis or "lumpy jaw syndrome" - the chronic, suppurative granulomatous disease caused by Actinomyces spp. And ALOs - is characterized by an initially slow and unspecific disease-presentation, which often mimics other pathologies, followed by the formation of painful abscesses and severe tissue destruction. Actinomycosis has been described as a rare disease, however, reliable epidemiological data are lacking. In addition, there is increasing awareness regarding the role of Actinomyces spp. in the development of osteoradionecrosis and medication-related osteonecrosis of the jaw. The aim of this narrative review is to succinctly summarize the current advances regarding the microbiological, clinical, diagnostic and therapeutic aspects of cervicofacial actinomycosis, in addition to the roles of Actinomyces species and ALOs as members of the oral microbiota and in dental biofilm, in other dental infections (caries, root canal infection, periapical infection, periodontitis) and osteonecrosis of the jaw, in the context of recent taxonomic changes affecting the genus. Our paper aims to be a blueprint for dentists, other physicians, microbiologists and researchers regarding the multifaceted field of cervicofacial actinomycosis.
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Affiliation(s)
- Zsanett Kövér
- Department of Dentistry, Oral and Maxillofacial Surgery, Medical School, University of Pécs, Tüzér U. 1., 7623, Pécs, Hungary.
| | - Vidar Johansen Nordskag
- Department of Dentistry, Oral and Maxillofacial Surgery, Medical School, University of Pécs, Tüzér U. 1., 7623, Pécs, Hungary.
| | - Ágnes Bán
- Department of Dentistry, Oral and Maxillofacial Surgery, Medical School, University of Pécs, Tüzér U. 1., 7623, Pécs, Hungary.
| | - Márió Gajdács
- Department of Oral Biology and Experimental Dental Research, Faculty of Dentistry, University of Szeged, Tisza Lajos krt. 64-66., 6725, Szeged, Hungary.
| | - Edit Urbán
- Department of Medical Microbiology and Immunology, Clinical Center, University of Pécs, Szigeti út 12., 7624, Pécs, Hungary.
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Gaeta C, Marruganti C, Ali IAA, Fabbro A, Pinzauti D, Santoro F, Neelakantan P, Pozzi G, Grandini S. The presence of Enterococcus faecalis in saliva as a risk factor for endodontic infection. Front Cell Infect Microbiol 2023; 13:1061645. [PMID: 37091670 PMCID: PMC10118032 DOI: 10.3389/fcimb.2023.1061645] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 03/02/2023] [Indexed: 04/09/2023] Open
Abstract
AimThe aim of the present study was to investigate and correlate the prevalence of Enterococcus faecalis in saliva and in root canals with different pulpal and periapical conditions.MethodologySixty-seven patients were divided into five groups based on pulpal and periapical tissue status: healthy vital teeth (HVT, n=7), healthy treated teeth without lesion (HTT, n=9), irreversible pulpitis (IP, n=13), necrosis (N, n=18), and post-treatment apical periodontitis (PTAP, n=20). Saliva, rubber dam, sterility control and pre-treatment root canal samples were collected and microbiologically processed by culture method. The phylogenetic relationship of E. faecalis isolates collected from root canals and saliva were investigated by whole genome sequencing. Fisher’s exact test was used to correlate the presence of E. faecalis in root canals or saliva with clinical and/or radiographic findings. Linear/logistic regression analyses were performed to establish the relationship between the presence of E. faecalis in root canals, saliva, and the status of periapical tissues.ResultsE. faecalis was found in 18 root canal and saliva samples. E. faecalis root canal isolates were recovered with the highest frequency from post-treatment apical periodontitis. The occurrence of E. faecalis in saliva was strongly associated with its detection in the root canals (P < 0.001). The pretreatment presence of E. faecalis in root canals was associated with significantly higher odds of having periapical lesions (OR=11.03; 95% CI, 1.27-95.70; p < 0.05). Saliva and root canal isolates from the same patient were highly correlated at the phylogenetic level (Jaccard index >0.95).ConclusionThis pilot study confirms the role of E. faecalis in developing peri-radicular lesions in secondary endodontic infections and suggests that saliva could be the main source of infection. Further studies are needed to investigate the exact origin of this bacteria and its true role in the pathogenesis of secondary/persistent endodontic infections.
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Affiliation(s)
- Carlo Gaeta
- Unit of Periodontology, Endodontic and Restorative Dentistry, Department of Medical Biotechnology, University of Siena, Siena, Italy
- *Correspondence: Carlo Gaeta,
| | - Crystal Marruganti
- Unit of Periodontology, Endodontic and Restorative Dentistry, Department of Medical Biotechnology, University of Siena, Siena, Italy
| | - Islam A. A. Ali
- Department of Endodontics, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | - Andrea Fabbro
- Unit of Periodontology, Endodontic and Restorative Dentistry, Department of Medical Biotechnology, University of Siena, Siena, Italy
| | - David Pinzauti
- Unit of Periodontology, Endodontic and Restorative Dentistry, Department of Medical Biotechnology, University of Siena, Siena, Italy
| | - Francesco Santoro
- Unit of Periodontology, Endodontic and Restorative Dentistry, Department of Medical Biotechnology, University of Siena, Siena, Italy
| | - Prasanna Neelakantan
- Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong, Hong Kong SAR, China
| | - Gianni Pozzi
- Unit of Periodontology, Endodontic and Restorative Dentistry, Department of Medical Biotechnology, University of Siena, Siena, Italy
| | - Simone Grandini
- Unit of Periodontology, Endodontic and Restorative Dentistry, Department of Medical Biotechnology, University of Siena, Siena, Italy
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Dahake PT, Kothari S. Microbiological Profile of Primary Teeth with Irreversible Pulpitis and Pulp Necrosis with/without Abscess and their Susceptibility to Three Antibiotics as Intracanal Medication. Int J Clin Pediatr Dent 2023; 16:312-320. [PMID: 37519959 PMCID: PMC10373775 DOI: 10.5005/jp-journals-10005-2521] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023] Open
Abstract
Context The ineffective disinfection potential of conventional intracanal medicaments to eliminate enteropathogens from root canal systems leads to their persistence contributing to endodontic treatment failures. Hence, the use of appropriate intracanal medicament becomes the essential phase to accomplishing comprehensive decontamination of the root canal system. When applied topically as an intracanal medicament, antibiotics eradicate residual microorganisms from tortuous endodontic spaces, minimizing the risk of systemic toxicity. Aims and objectives To evaluate the prevalence of various bacterial species associated with signs of irreversible pulpitis and pulp necrosis with/without abscess in primary teeth root canals and their susceptibility against three antimicrobial agents. Materials and methods The pulp tissue and organic debris were retrieved from deciduous teeth (n = 50) from children between the age of 3-10 years and cultured. The bacterial identification and antibacterial profiling of isolated bacteria were done against clindamycin, metronidazole, and doxycycline through minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) assay. The MIC and MBC of each antibiotic were expressed as mean ± standard deviation (SD), range, and standard error (SE of the mean). The intergroup comparisons were done by the Kruskal-Wallis test, while intragroup pair-wise comparisons were done using the Wilcoxon signed-rank test. The confidence level will be set at 95%. Results Aerobic bacteria were found in 54%, microaerophilic bacteria in 76%, facultative anaerobes in 26%, and obligatory anaerobes were isolated from 30% of teeth. The intragroup and intergroup comparisons of test agent MIC revealed a nonsignificant difference (p > 0.05). The intragroup MBC comparisons of all the test agents revealed statistically nonsignificant (p > 0.05), while intergroup comparisons demonstrated nonsignificant (p > 0.05) to highly significant difference (p < 0.001). Conclusion Clindamycin demonstrated promising antibacterial activity against most of the isolated bacteria, while against metronidazole and doxycycline, most of the bacteria were moderate to highly resistant. Clinical significance Determining the antibacterial agents' efficacy along with modifications can help to target maximum pathogenic microbes and reduce catastrophic endodontic therapy failures. How to cite this article Dahake PT, Kothari S. Microbiological Profile of Primary Teeth with Irreversible Pulpitis and Pulp Necrosis with/without Abscess and their Susceptibility to Three Antibiotics as Intracanal Medication. Int J Clin Pediatr Dent 2023;16(2):312-320.
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Affiliation(s)
- Prasanna T Dahake
- Department of Pediatric and Preventive Dentistry, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education & Research (DMIHER) (Deemed to be University), Wardha, Maharashtra, India
| | - Sonal Kothari
- Department of Pediatric Dentistry, Pacific Dental College & Research Center, Udaipur, Rajasthan, India
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Biological Potential of the Main Component, Thymoquinone, of Nigella sativa in Pulp Therapy-In Vitro Study. Life (Basel) 2022; 12:life12091434. [PMID: 36143470 PMCID: PMC9501378 DOI: 10.3390/life12091434] [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: 08/23/2022] [Revised: 09/07/2022] [Accepted: 09/12/2022] [Indexed: 11/22/2022] Open
Abstract
This work is designed to assess the antimicrobial efficacy, chelating efficacy, and dissolving capability of the bioactive agent of the Nigella sativa plant (thymoquinone). Four freeze-dried microorganisms were studied. Each species was treated with either 6% sodium Hypochlorite, thymoquinone, or sterile water. The zone of inhibition was measured. Thirty extracted human premolar teeth were utilized to evaluate the smear layer removal. Root canals were mechanically instrumented and then irrigated with either 6% sodium Hypochlorite, 17% ethylenediaminetetraacetic acid, or thymoquinone for 1 min and scanned under the scanning electron microscopic to evaluate the cleanliness of the root canal and the remainder of the smear layer. To evaluate the tissue dissolving effect, Bovine Pulp Tissue was utilized. Randomly treated samples included: 6% sodium Hypochlorite, thymoquinone, or isotonic saline for 30 min. The remaining pulp tissue was weighed. Thymoquinone reported the highest inhibition of microbial multiplication compared to other irrigants (p < 0.001). Thymoquinone solution had an excellent antibacterial effect on endodontic pathogen and did not affect the inorganic and organic tissue inside the root canal. Meanwhile, it reported weak chelating and dissolving effects. Tissue dissolution was statistically significant with sodium Hypochlorite solution compared to other groups (p < 0.001).
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Sun X, Yang Z, Nie Y, Hou B. Microbial Communities in the Extraradicular and Intraradicular Infections Associated With Persistent Apical Periodontitis. Front Cell Infect Microbiol 2022; 11:798367. [PMID: 35096647 PMCID: PMC8791237 DOI: 10.3389/fcimb.2021.798367] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/17/2021] [Indexed: 12/26/2022] Open
Abstract
Microorganisms in the complex root canal system and the extraradicular regions, including the periapical lesions and extraradicular biofilm may cause root canal treatment failures. However, few studies described the difference between the intraradicular and extraradicular infections from the same tooth associated with persistent apical periodontitis. This study aimed to characterize the microbiome present in the root canal, extraradicular biofilm, and periapical lesions associated with persistent apical periodontitis. The microbial communities in the root canal, extraradicular biofilm, and periapical lesions were investigated by Illumina high-throughput sequencing using Illumina Hiseq 2500 platform. The dominant phyla in the extraradicular and intraradicular infections associated with persistent apical periodontitis were Proteobacteria, Firmicutes, Bacteroidetes, and Actinobacteria, and the genera Fusobacterium, Morganella, Porphyromonas, Streptococcus, and Bifidobacterium dominated across all samples. Although extraradicular infection sites showed higher OTU richness and β-diversity compared to intraradicular samples, the occurrence of sinus tract rather than the sampling sites demarcated the microbial communities in the infections associated with persistent apical periodontitis. PERMANOVA analysis confirmed that the samples with or without sinus tracts contained significantly different microbial communities. Porphyromonas, Eubacterium, Treponema, and Phocaeicola were found in significantly higher levels with sinus tracts, whilst Microbacterium and Enterococcus were more abundant in samples without sinus tracts. In conclusion, diverse bacteria were detected in both intraradicular and extraradicular infections associated with persistent apical periodontitis, which might be influenced by the occurrence of the sinus tract. The results may provide new insight into the pathogenesis of persistent apical periodontitis.
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Affiliation(s)
- Xiaoqiang Sun
- The Department of Endodontics, School of Stomatology, Capital Medical University, Beijing, China
| | - Zi Yang
- The Department of Endodontics, School of Stomatology, Capital Medical University, Beijing, China
| | - Yong Nie
- College of Engineering, Peking University, Beijing, China
| | - Benxiang Hou
- The Department of Endodontics, School of Stomatology, Capital Medical University, Beijing, China
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de Castro Kruly P, Alenezi HEM, Manogue M, Devine DA, Teixeira ND, Pimentel Garcia FC, Do T. Residual bacteriome after chemomechanical preparation of root canals in primary and secondary infections. J Endod 2022; 48:855-863. [DOI: 10.1016/j.joen.2022.03.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 02/13/2022] [Accepted: 03/27/2022] [Indexed: 12/27/2022]
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10
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Huang Y, Zhou P, Liu S, Duan W, Zhang Q, Lu Y, Wei X. Metabolome and microbiome of chronic periapical periodontitis in permanent anterior teeth: a pilot study. BMC Oral Health 2021; 21:599. [PMID: 34814909 PMCID: PMC8609808 DOI: 10.1186/s12903-021-01972-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 11/05/2021] [Indexed: 11/26/2022] Open
Abstract
Background Periapical periodontitis is a common oral inflammatory disease that affects periapical tissues and is caused by bacteria in the root canal system. The relationship among the local metabolome, the inflammatory grade, and the type and abundance of microorganisms associated with periapical periodontitis is discussed in this study. Methods The inflammatory grades of periapical samples from 47 patients with chronic periapical periodontitis in permanent anterior teeth were determined based on the immune cell densities in tissues subjected to haematoxylin and eosin staining. The metabolome was evaluated using ultrahigh-performance liquid chromatography-quadrupole time-of-flight mass spectrometry, followed by principal component analysis and orthogonal partial least squares discriminant analysis. The microbiome was accessed using 16 S rRNA high-throughput sequencing. The differences in the metabolomes and microbiomes of the periapical periodontitis samples were assessed using Spearman’s correlation analysis. Result N-acetyl-D-glucosamine, L-tryptophan, L-phenylalanine, and 15 other metabolites were identified by the comparison between samples with severe inflammation and mild or moderate inflammation. Four amino acid metabolism pathways and one sugar metabolism pathway were associated with the inflammatory grade of periapical periodontitis. The abundance of Actinomycetes was negatively correlated with the abundance of glucosamine (GlcN), while the abundance of Tannerella was positively correlated with the abundance of L-methionine. Conclusions The local metabolome of periapical periodontitis is correlated with the inflammatory grade. The abundance of the local metabolites GlcN and L-methionine is correlated with the abundance of the major microorganisms Actinomycetes and Tannerella, respectively.
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Affiliation(s)
- Yun Huang
- Jiangsu Province Key Laboratory of Oral Diseases, Department of Conservative Dentistry and Endodontics, Stomatological Hospital, Nanjing Medical University, Nanjing, China.,Department of Operative Dentistry and Endodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Peng Zhou
- Jiangsu Province Key Laboratory of Oral Diseases, Department of Conservative Dentistry and Endodontics, Stomatological Hospital, Nanjing Medical University, Nanjing, China.,Department of Operative Dentistry and Endodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Siqi Liu
- Jiangsu Province Key Laboratory of Oral Diseases, Department of Conservative Dentistry and Endodontics, Stomatological Hospital, Nanjing Medical University, Nanjing, China.,Department of Operative Dentistry and Endodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Wei Duan
- Jiangsu Province Key Laboratory of Oral Diseases, Department of Conservative Dentistry and Endodontics, Stomatological Hospital, Nanjing Medical University, Nanjing, China.,Department of Operative Dentistry and Endodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Qinqin Zhang
- Jiangsu Province Key Laboratory of Oral Diseases, Department of Conservative Dentistry and Endodontics, Stomatological Hospital, Nanjing Medical University, Nanjing, China.,Department of Operative Dentistry and Endodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Ying Lu
- Jiangsu Province Key Laboratory of Oral Diseases, Department of Conservative Dentistry and Endodontics, Stomatological Hospital, Nanjing Medical University, Nanjing, China.,Department of Operative Dentistry and Endodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Xin Wei
- Jiangsu Province Key Laboratory of Oral Diseases, Department of Conservative Dentistry and Endodontics, Stomatological Hospital, Nanjing Medical University, Nanjing, China. .,Department of Operative Dentistry and Endodontics, Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, Jiangsu, China. .,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China.
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Radiographic and antimicrobial evaluation of enterococcus Faecalis and Actinomyces Israelii micro-organisms after photodynamic therapy (aPDT). Photodiagnosis Photodyn Ther 2021; 35:102433. [PMID: 34256171 DOI: 10.1016/j.pdpdt.2021.102433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/02/2021] [Accepted: 07/01/2021] [Indexed: 11/23/2022]
Abstract
This study evaluated the action of Antimicrobial Photodynamic Therapy (aPDT) on Enterococcus faecalis and Actinomyces israelii. Samples were taken from the root canal system, at different stages of treatment and bacteria were identified through qPCR. Fifty teeth (incisors, canines, and premolars) with pulp necrosis and periapical lesion diagnosis were randomly selected and divided into 2 groups: Group 1 (G1) - Endodontic Therapy with Mechanical Chemical Preparation (MPQ) and intracanal medication; Group 2 (G2) - Endodontic therapy with MPQ, intracanal medication, and 2 applications of aPDT. APDT was performed with application of 0.005% methylene blue, wavelength of 660 nm, and 90 seconds. Follow-up was performed with an initial x-ray and an x-ray 60 days after the end of treatment. The radiographs were scored evaluated by two examiners to classify periapical repair: total repair, partial repair, doubtful repair, or no repair. Enterococcus faecalis was found more frequently in G1 than G2. Actinomyces israelii was found equally in G1 and G2. Evaluation of the two bacteria between collections 1, 2 and 3, showed that there was no difference, both in G1 and in G2. There was association between the variables group and repair classification in radiographs evaluation. APDT did not promote better results in endodontic treatment, being similar to conventional treatment. However, this study pointed out that molecular methods may not be efficient in detecting bacteria after treatment, and colony-forming units may complement, being an effective quantifying method. Therefore, new studies must be carried out to show the possible effectiveness of aPDT.
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12
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Antibacterial effect of silver nanoparticles mixed with calcium hydroxide or chlorhexidine on multispecies biofilms. Odontology 2021; 109:802-811. [PMID: 34047872 DOI: 10.1007/s10266-021-00601-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 03/15/2021] [Indexed: 10/21/2022]
Abstract
The purpose is to evaluate the antibacterial effects of the silver nanoparticles (AgNPs) (Nanografi, METU Teknokent, Ankara, Turkey) mixed with calcium hydroxide (Ca(OH)2) (Ultracal XS, Ultradent, St Louis, US) or chlorhexidine gel (CHX) (Gluco-Chex, Cerkamed, Stalowa Wola, Poland) against a multispecies biofilm, by confocal laser scanning microscopy (CLSM) and culture-based analysis. Dentine blocks were inoculated with Enterococcus faecalis, Streptococcus mutans, Lactobacillus acidophilus and Actinomyces naeslundii for 1 week. Infected dentine blocks were randomly divided into groups according to medication; saline solution (SS), Ca(OH)2, Ca(OH)2 + AgNP, 2%CHX gel and 2%CHX gel + AgNP and time of application: 1 and 7 days (all groups, n = 5). Bacterial samples were collected before and after medication to quantify the bacterial load. Biofilm elimination was quantitatively analyzed by Live/Dead BacLight Bacterial Viability staining and CLSM. The addition of AgNPs to Ca(OH)2 increased the effectiveness of medicament in terms of bacterial reduction in both application times (1 and 7 days) (p < 0.05: ANOVA, Tukey's test) according to culture-based analysis. The CLSM images revealed that mixture of AgNP with CHX killed significantly more bacteria when compared with all other medicaments at 1- and 7-day application times (p < 0.05 and p > 0.05, respectively: Kruskal-Wallis, Dunn post hoc tests). The efficacy of Ca(OH)2 mixed with AgNPs was superior to Ca(OH)2 used alone in both application times (p < 0.05) according to CLSM analysis. The present study put forth the potential use of AgNPs mixed with Ca(OH)2 or CHX on multispecies (Enterococcus faecalis, Streptococcus mutans, Lactobacillus acidophilus and Actinomyces naeslundii) biofilm in 1 and 7day application periods.
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13
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Medina-Palacios SE, Vitales-Noyola M, López-González E, González-Amaro AM, Méndez-González V, Pozos-Guillén A. Root canal microorganisms and their antibiotic susceptibility in patients with persistent endodontic infections, with and without clinical symptoms. Odontology 2021; 109:596-604. [PMID: 33387161 DOI: 10.1007/s10266-020-00580-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 11/29/2020] [Indexed: 11/27/2022]
Abstract
Secondary/persistent infections are present in teeth with previous root canal treatment, and a great variety of anaerobic microorganisms has been observed in these infections. The antibiotics prescription is occasional; however, in some cases, it is essential, particularly when the general health condition of the patient is compromised. The aims of this study were to identify the associated microorganisms in diagnosis of persistent or secondary apical periodontitis and to evaluate the susceptibility level to the antibiotics most used. Fifteen patients with persistent or secondary apical periodontitis requiring endodontic re-treatment were included. Microbiological samples were taken from the root canals and incubated in thioglycollate under anaerobic conditions. Anaerobic CDC agar (formulated by the Center for Disease Control and Prevention) was employed as a culture medium and the microorganisms were identified using the API system. The microorganisms were subjected to antibiograms with three different antibiotics. Twenty-six microorganisms were identified, the most common genus was Enterococcus (26.8%), Streptococcus (19.22%), Aerococcus (19.1%), and Clostridium (11.4%). 48% of them were susceptible to amoxicillin, with 28% of resistance. For clavulanic acid/amoxicillin, the susceptibility occurred in 32%, with 28% of resistance; and for clindamycin, the susceptibility was present in 40%, with 52% of resistance. The most frequently detected associated microorganism for secondary infections was genus Enterococcus, which exhibited high resistance to the studied antibiotics.
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Affiliation(s)
- Sara Edith Medina-Palacios
- Endodontics Postgraduated Program, Faculty of Dentistry, San Luis Potosí University, San Luis Potosí, SLP, Mexico
| | - Marlen Vitales-Noyola
- Endodontics Postgraduated Program, Faculty of Dentistry, San Luis Potosí University, San Luis Potosí, SLP, Mexico
| | - Emmanuel López-González
- Endodontics Postgraduated Program, Faculty of Dentistry, San Luis Potosí University, San Luis Potosí, SLP, Mexico
| | - Ana María González-Amaro
- Endodontics Postgraduated Program, Faculty of Dentistry, San Luis Potosí University, San Luis Potosí, SLP, Mexico
| | - Verónica Méndez-González
- Endodontics Postgraduated Program, Faculty of Dentistry, San Luis Potosí University, San Luis Potosí, SLP, Mexico
| | - Amaury Pozos-Guillén
- Basic Sciences Laboratory, Faculty of Dentistry, San Luis Potosi University, 2 Manuel Nava, Zona Universitaria, 78290, San Luis Potosí, SLP, Mexico.
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Microbiological Analysis of Primary Infected Root Canals with Symptomatic and Asymptomatic Apical Periodontitis of Young Permanent Teeth. BALKAN JOURNAL OF DENTAL MEDICINE 2020. [DOI: 10.2478/bjdm-2020-0027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Summary
Background/Aim: Understanding the composition of bacteria in infected root canals is important for ameliorating the treatment strategies that lead to the elimination of pathogens and infection control, but also prevent reinfection. Aim of this study was to investigate microbial composition of primary infected root canals with apical periodontitis of young permanent teeth, originating form school children in Serbia, and its association with clinical symptoms.
Material and Methods: To determine the bacterial composition of infected root canals in children, 35 endodontic samples were obtained. The identification of cultured bacteria was performed by MALDI-TOF MS analysis. The presence or absence of clinical symtoms were recorded.
Results: Facultative anaerobes were 2,2 times more frequent than obligate anaerobes. The most common facultative anaerobes belonged to following genera, Streptococcus (58 isolates), Actinomyces (10) and Enterococcus (8), while predominant obligate anaerobes, belonged to genera Veillonella (15), Prevotella (9) and Fusobacterium (8). The most common clinical isolates recovered from infected root canals with symptomatic apical periodontitis were Veillonella parvula (10) and Fusobacterium nucleatum (7), while from the asymptomatic ones, they were Streptococcus mitis/Streptococcus oralis (5). Prevalence of Parvimonas micra, Prevotella buccae and Streptococcus constellatus within the root canals might be associated to clinical symptoms.
Conclusions: Species of genera Streptococcus and Veillonella were the most common isolates from primary infected root canals with apical periodontitis in Serbian school children. Facultative anaerobes were predominant over obligate anaerobes. The prevalence of obligate anaerobes was much higher in symptomatic compared to asymptomatic root canal infections. No specific bacterial strain might be associated to a single examined clinical symptom (pain, tenderness to percussion or swelling), but majority of the strains are associated to all of the examined three symptoms.
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Karamifar K, Tondari A, Saghiri MA. Endodontic Periapical Lesion: An Overview on the Etiology, Diagnosis and Current Treatment Modalities. Eur Endod J 2020; 5:54-67. [PMID: 32766513 PMCID: PMC7398993 DOI: 10.14744/eej.2020.42714] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 07/09/2020] [Indexed: 12/16/2022] Open
Abstract
Nonsurgical and surgical endodontic treatments have a high success rate in the treatment and prevention of apical periodontitis when carried out according to standard and accepted clinical principles. Nevertheless, endodontic periapical lesions remain in some cases, and further treatment should be considered when apical periodontitis persists. Although several treatment modalities have been proposed for endodontically treated teeth with persistent apical periodontitis, there is a need for less invasive methods with more predictable outcomes. The advantages and shortcomings of existing approaches for the diagnosis and treatment of endodontic periradicular lesions are discussed in this review.
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Affiliation(s)
- Kasra Karamifar
- From the Department of Restorative Dentistry, Rutgers School of Dental Medicine, New Jersey, USA
| | - Afsoon Tondari
- Department of Restorative Dentistry, Dental Branch, Shiraz Azad University, Shiraz, Iran
| | - Mohammad Ali Saghiri
- From the Department of Restorative Dentistry, Rutgers School of Dental Medicine, New Jersey, USA
- Department of Endodontics, University of the Pacific, Arthur A. Dugoni School of Dentistry, San Francisco, USA
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16
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Dioguardi M, Alovisi M, Crincoli V, Aiuto R, Malagnino G, Quarta C, Laneve E, Sovereto D, Lo Russo L, Troiano G, Lo Muzio L. Prevalence of the Genus Propionibacterium in Primary and Persistent Endodontic Lesions: A Systematic Review. J Clin Med 2020; 9:jcm9030739. [PMID: 32182900 PMCID: PMC7141369 DOI: 10.3390/jcm9030739] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 03/05/2020] [Indexed: 12/26/2022] Open
Abstract
Propionibacterium are anaerobic/aero-tolerant rod Gram-positive bacteria, and numerous studies are associated with primary and secondary endodontic infections. The data in the literature on the prevalence of Propionibacterium are conflicting, and there are studies that report conflicting data on the prevalence in primary and secondary endodontic infections. This review aims to clarify the prevalence of bacteria of the genus Propionibacterium in endodontic lesions. The present systematic review work was performed on the basis of the Prisma protocol. A search was carried out on the PubMed and Scopus databases with the use of keywords. The research produced 410 records, which, after the elimination of the overlaps and the application of the inclusion and exclusion criteria, led to a number of 36 included articles divided by the three outcomes. The first outcome concerns prevalence of bacteria of the genus Propionibacterium in primary and secondary endodontic lesions. The secondary outcome, differences in the prevalence of bacteria of the genus Propionibacterium between primary endodontic infections and secondary endodontic infections. The tertiary outcome, differences in the prevalence of Propionibacterium Acnes compared to Propionibacterium propionicum in endodontic infections. The results of the meta-analysis show that the genus Propionibacterium bacteria are more prevalent in secondary endodontic infections and that P. Acnes has a higher prevalence than P. propionicum.
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Affiliation(s)
- Mario Dioguardi
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (G.M.); (C.Q.); (E.L.); (D.S.); (L.L.R.); (G.T.); (L.L.M.)
- Correspondence:
| | - Mario Alovisi
- Department of Surgical Sciences, Dental School, University of Turin, 10126 Turin, Italy;
| | - Vito Crincoli
- Department of Basic Medical Sciences, Neurosciences and Sensory Organs, Division of Complex Operating Unit of Dentistry, “Aldo Moro” University of Bari, Piazza G. Cesare 11, 70124 Bari, Italy;
| | - Riccardo Aiuto
- Department of Biomedical, Surgical, and Dental Science, University of Milan, 20122 Milan, Italy;
| | - Giancarlo Malagnino
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (G.M.); (C.Q.); (E.L.); (D.S.); (L.L.R.); (G.T.); (L.L.M.)
| | - Cristian Quarta
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (G.M.); (C.Q.); (E.L.); (D.S.); (L.L.R.); (G.T.); (L.L.M.)
| | - Enrica Laneve
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (G.M.); (C.Q.); (E.L.); (D.S.); (L.L.R.); (G.T.); (L.L.M.)
| | - Diego Sovereto
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (G.M.); (C.Q.); (E.L.); (D.S.); (L.L.R.); (G.T.); (L.L.M.)
| | - Lucio Lo Russo
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (G.M.); (C.Q.); (E.L.); (D.S.); (L.L.R.); (G.T.); (L.L.M.)
| | - Giuseppe Troiano
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (G.M.); (C.Q.); (E.L.); (D.S.); (L.L.R.); (G.T.); (L.L.M.)
| | - Lorenzo Lo Muzio
- Department of Clinical and Experimental Medicine, University of Foggia, Via Rovelli 50, 71122 Foggia, Italy; (G.M.); (C.Q.); (E.L.); (D.S.); (L.L.R.); (G.T.); (L.L.M.)
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Prevalence of Bacteria of Genus Actinomyces in Persistent Extraradicular Lesions-Systematic Review. J Clin Med 2020; 9:jcm9020457. [PMID: 32046071 PMCID: PMC7074192 DOI: 10.3390/jcm9020457] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/04/2020] [Accepted: 02/05/2020] [Indexed: 12/14/2022] Open
Abstract
Actinomyces are anaerobic, rod-shaped, Gram-positive bacteria. They are associated with persistent extraradicular endodontic infections, with possible involvement of the soft tissues of the maxillofacial district. Many studies reported conflicting data on the presence of bacteria of the genus Actinomyces in endodontic infections. The aim of this systematic review of the literature was to determine the real prevalence of such bacteria in primary and/or secondary endodontic infections and in cases of persistence with extraradicular involvement. This systematic review was performed according to the PRISMA protocol. A search was carried out through the Scopus and PubMed databases of potentially eligible articles through the use of appropriate keywords. The literature research resulted in preliminary 2240 records which, after the elimination of overlaps and the application of inclusion and exclusion criteria, led to the inclusion of 46 articles focusing on three outcomes (primary outcome: number of teeth with the presence of a persistent extraradicular infection in which the presence of Actinomyces was ascertained; secondary outcome: number of teeth with endodontic infection in which the presence of Actinomyces was assessed; tertiary outcome: difference in the prevalence of bacteria of the genus Actinomyces between primary endodontic infections and secondary endodontic infections). Results of the meta-analysis show how bacteria of the genus Actinomyces are present in primary and secondary intraradicular infections and in those with persistence with a prevalence (ratio between teeth with actinomyces and teeth with infection) ranging from 0.091 up to 0.130 depending on the subgroups analyzed.
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18
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19
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Inspection of the Microbiota in Endodontic Lesions. Dent J (Basel) 2019; 7:dj7020047. [PMID: 31052361 PMCID: PMC6630690 DOI: 10.3390/dj7020047] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 03/23/2019] [Accepted: 04/09/2019] [Indexed: 02/08/2023] Open
Abstract
The primary objective of endodontic therapy is to create a biologically acceptable environment within the root canal system that allows for the healing and maintenance of the health of the peri-radicular tissue. Bacteria are one of the main causes of pulp problems, and they have different methods of penetrating and invading the endodontic space such as through carious lesions, traumatic pulp exposures, and fractures. The types of bacteria found range from facultative anaerobes to aerobes, up to the most resistant species able to survive in nutrient-free environments; the bacterial species Enterococcus faecalis belongs to this last group. Enterococcus faecalis is considered one of the main causes of recurring apical periodontal lesions following endodontic treatment, with persistent lesions occurring even after re-treatment. The review presented in this paper was performed in accordance with the PRISMA protocol and covers articles from the related scientific literature that were sourced from PubMed, Scopus, and Google Scholar using the following terms as keywords: “endodontic treatment”, “endodontic bacteria”, “microbial endodontic”, and “endodontic failure”. Only the articles considered most relevant for the purposes of this paper were read in full and taken into consideration for the following review. The results show that Enterococcus faecalis, Actinomycetes, and Propionibacterium propionicum are the species most frequently involved in persistent radicular and extra-radicular infections.
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20
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Hadaya D, Soundia A, Gkouveris I, Dry SM, Aghaloo TL, Tetradis S. Development of Medication-Related Osteonecrosis of the Jaw After Extraction of Teeth With Experimental Periapical Disease. J Oral Maxillofac Surg 2018; 77:71-86. [PMID: 30218655 DOI: 10.1016/j.joms.2018.08.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/01/2018] [Accepted: 08/01/2018] [Indexed: 12/25/2022]
Abstract
PURPOSE Medication-related osteonecrosis of the jaw (MRONJ) is a rare but severe side effect of antiresorptive medications. Most animal models use tooth extraction as an instigating local factor to induce MRONJ, with varied results. However, these teeth are healthy and absent of dental disease, a rare finding that does not reflect clinical practices. The authors hypothesized that extraction of teeth with periapical inflammation would lead to MRONJ in rats treated with high-dose bisphosphonates. MATERIALS AND METHODS Rats were pretreated with zoledronic acid (ZA) for 1 week. Pulp exposure (PE) was established by exposing the pulpal chamber of the first and second molars. Experimental periapical disease (EPD) was induced by PE and bacterial inoculation into pulp chambers of the first and second mandibular molars. The mandibular molars were extracted 4 weeks after PE or EPD, and animals were euthanized 4 weeks after tooth extraction. Extraction sockets were assessed clinically, radiographically, and histologically. RESULTS Clinically, radiographically, and histologically, socket healing was observed in all vehicle-treated animals and in ZA-treated animals after extraction of healthy teeth or teeth with PE. In contrast, bone exposure, lack of socket healing, and osteonecrosis were present in most ZA-treated animals after extraction of teeth with EPD. Bacterial presence was noted in areas of osteonecrotic alveolar bone. CONCLUSION These data support a synergistic contribution of severe dental disease and tooth extraction to MRONJ pathogenesis. Importantly, this model is amenable to manipulation of methodologic conditions for the dissection of parameters involved in MRONJ pathogenesis.
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Affiliation(s)
- Danny Hadaya
- Graduate Student, Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA
| | - Akrivoula Soundia
- Graduate Student, Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA
| | - Ioannis Gkouveris
- Post-doctoral Fellow, Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA
| | - Sarah M Dry
- Professor, Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Tara L Aghaloo
- Professor, Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA.
| | - Sotirios Tetradis
- Professor, Division of Diagnostic and Surgical Sciences, UCLA School of Dentistry, Los Angeles, CA.
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21
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Takahama A, Rôças IN, Faustino ISP, Alves FRF, Azevedo RS, Gomes CC, Araújo-Filho WR, Siqueira JF. Association between bacteria occurring in the apical canal system and expression of bone-resorbing mediators and matrix metalloproteinases in apical periodontitis. Int Endod J 2018; 51:738-746. [DOI: 10.1111/iej.12895] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Accepted: 01/18/2018] [Indexed: 12/16/2022]
Affiliation(s)
- A. Takahama
- Department of Oral Medicine and Pediatric Dentistry; State University of Londrina; Londrina PR Brazil
| | - I. N. Rôças
- Department of Endodontics; Faculty of Dentistry; Estácio de Sá University; Rio de Janeiro RJ Brazil
| | - I. S. P. Faustino
- Department of Oral Pathology; Nova Friburgo Health Institute; Federal Fluminense University; Nova Friburgo RJ Brazil
| | - F. R. F. Alves
- Department of Endodontics; Faculty of Dentistry; Estácio de Sá University; Rio de Janeiro RJ Brazil
| | - R. S. Azevedo
- Department of Oral Pathology; Nova Friburgo Health Institute; Federal Fluminense University; Nova Friburgo RJ Brazil
| | - C. C. Gomes
- Department of Endodontics; Nova Friburgo Health Institute; Federal Fluminense University; Nova Friburgo RJ Brazil
| | - W. R. Araújo-Filho
- Department of Endodontics; Nova Friburgo Health Institute; Federal Fluminense University; Nova Friburgo RJ Brazil
| | - J. F. Siqueira
- Department of Endodontics; Faculty of Dentistry; Estácio de Sá University; Rio de Janeiro RJ Brazil
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22
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Sharma G, Ahmed HMA, Zilm PS, Rossi-Fedele G. Antimicrobial properties of calcium hydroxide dressing when used for long-term application: A systematic review. AUST ENDOD J 2017; 44:60-65. [DOI: 10.1111/aej.12216] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2017] [Indexed: 10/18/2022]
Affiliation(s)
- Garima Sharma
- Adelaide Dental School; The University of Adelaide; Adelaide South Australia Australia
| | | | - Peter S. Zilm
- Adelaide Dental School; The University of Adelaide; Adelaide South Australia Australia
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23
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Stauffacher S, Lussi A, Nietzsche S, Neuhaus KW, Eick S. Bacterial invasion into radicular dentine-an in vitro study. Clin Oral Investig 2016; 21:1743-1752. [PMID: 27722787 DOI: 10.1007/s00784-016-1960-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 09/14/2016] [Indexed: 12/25/2022]
Abstract
OBJECTIVES We wanted to investigate differences in invasiveness into radicular dentinal tubules by monocultured and co-cultured bacteria frequently found in infected root canals. METHODS Fifty-one human roots were incubated for 8 weeks with monocultured Streptococcus gordonii ATCC 10558, Streptococcus sanguinis ATCC 10556, and with five capnophiles/anaerobes as well as with capnophiles/anaerobes co-cultured with a streptococcal species. Thereafter, bacterial samples were cultured from the inner, middle, and outer third of the root dentine of longitudinally broken teeth (n = 5). In addition, scanning electron microscopy (SEM) images were obtained. RESULTS Single gram-positive species were able to penetrate into the middle and outer third of the root dentine. Fusobacterium nucleatum ATCC 25586 was not found in any of the dentine specimens. Prevotella intermedia ATCC 25611 and Porphyromonas gingivalis ATCC 33277 were found in the inner and middle third. The bacterial load of streptococci was higher in all thirds in co-cultures compared to single infections. In co-cultures with streptococci, Actinomyces oris ATCC 43146 was found in the outer third in 9/10 samples, whereas P. intermedia ATCC 25611 was not detectable inside dentine. Co-culture with S. sanguinis ATCC 10556 enabled F. nucleatum ATCC 25586 to invade dentine; SEM images showed that F. nucleatum ATCC 25586 had a swollen shape. CONCLUSIONS Invasiveness of bacteria into dentinal tubules is species-specific and may change depending on culturing as a single species or co-culturing with other bacteria. CLINICAL RELEVANCE Oral streptococci may promote or inhibit invasion of capnophiles/anaerobes into radicular dentine.
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Affiliation(s)
- Simone Stauffacher
- Department of Preventive, Restorative and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, CH-3010, Bern, Switzerland
| | - Adrian Lussi
- Department of Preventive, Restorative and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, CH-3010, Bern, Switzerland
| | - Sandor Nietzsche
- Center of Electron Microscopy, University Hospital of Jena, Jena, Germany
| | - Klaus W Neuhaus
- Department of Preventive, Restorative and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, CH-3010, Bern, Switzerland.
| | - Sigrun Eick
- Laboratory of Oral Microbiology, Department of Periodontology, University of Bern, Bern, Switzerland
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24
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Mistry KS, Sanghvi Z, Parmar G, Shah S, Pushpalatha K. Antibacterial efficacy of Azadirachta indica, Mimusops elengi and 2% CHX on multispecies dentinal biofilm. J Conserv Dent 2016; 18:461-6. [PMID: 26752840 PMCID: PMC4693319 DOI: 10.4103/0972-0707.168810] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Aims: To check the antimicrobial activity of Azadirachta indica (Neem), Mimusops elengi (Bakul), and Chlorhexidine gluconate (CHX) on multispecies biofilm of common endodontic pathogens such as Streptococcus mutans, Enterococcus faecalis, Staphylococcus aureus and Candida albicans. Settings and Design: In vitro dentin disinfection model used to check the antimicrobial efficacy of herbal extracts. Materials and Methods: The in vitro dentin disinfection model was used to check the antimicrobial activity of the methanolic extracts of the medicinal plants along with Chlorhexidine gluconate. The polymicrobial biofilm was allowed to grow on extracted teeth sections for a period of 21 days. Remaining microbial load in the form of CFU/ml after the antimicrobial treatment was tabulated, and data were statistically analyzed using ANOVA and Bonferroni post-hoc tests. Statistical Analysis Used: SPSS version 17, one-way ANOVA, Bonferroni post-hoc test. Results: Both the plant extracts showed considerable antimicrobial efficacy as compared to negative control. 2% CHX was the most effective antimicrobial agent having statistically significant difference against plant extracts and negative control (saline). Conclusion: The methanolic extract of A. Indica, M. elengi, and Chlorhexidine Gluconate has considerable antimicrobial activity against polymicrobial dentinal biofilm of S. mutans, E. faecalis, S. aureus and C. albicans.
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Affiliation(s)
- Kunjal S Mistry
- Department of Conservative Dentistry and Endodontics, Faculty of Dental Science, Dharamsinh Desai University, Nadiad, Gujarat, India
| | - Zarna Sanghvi
- Department of Conservative Dentistry and Endodontics, Ahmedabad Dental College and Hospital, Ahmedabad, Gujarat, India
| | - Girish Parmar
- Department of Conservative Dentistry and Endodontics, Government Dental College and Hospital, Ahmedabad, Gujarat, India
| | - Samir Shah
- Department of Pharmacology, Sardar Patel College of Pharmacy, Anand, Gujarat, India
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Wang S, Deng Z, Ye X, Geng X, Zhang C. Enterococcus faecalis attenuates osteogenesis through activation of p38 and ERK1/2 pathways in MC3T3-E1 cells. Int Endod J 2015; 49:1152-1164. [PMID: 26572053 DOI: 10.1111/iej.12579] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 11/06/2015] [Indexed: 01/18/2023]
Abstract
AIM To explore the role of Enterococcus faecalis in the proliferation, apoptosis and differentiation of osteoblasts. METHODOLOGY Pre-osteoblastic MC3T3-E1 cells were treated with heat-killed E. faecalis ATCC 29212 and clinical E. faecalis P25RC strains, respectively. Cell proliferation, mineralized calcium deposition, alkaline phosphatase (ALP) activity and apoptosis were assessed at various time-points. The expression levels of osteogenic-related genes including ALP, osteocalcin (OC), runt-related protein 2 (Runx2) and collagen type 1 (COL1) were also analysed throughout the duration of the experiment. Additionally, the involvement of mitogen-activated protein kinases (MAPKs) signalling pathways was analysed by Western blotting. In the presence of culture supernatant from E. faecalis-treated murine macrophages, apoptosis of MC3T3-E1 cells was detected with flow cytometry. Data were analysed using analysis of variance (anova), and P < 0.05 was considered significantly different. RESULTS E. faecalis significantly inhibited proliferation (P < 0.05) and also significantly induced apoptosis of MC3T3-E1 cells (P < 0.05), whilst differentiation seemed to be unaffected after 7 days of E. faecalis treatment. However, osteogenic differentiation was significantly inhibited with 21-day E. faecalis treatment (P < 0.05). The p38 and ERK1/2 phosphorylation pathways associated with mineral deposition and apoptosis were significantly activated in MC3T3-E1 cells. The culture supernatants from E. faecalis-treated macrophages induced osteoblast apoptosis. CONCLUSIONS E. faecalis exerted an inhibitory effect on osteogenesis in pre-osteoblastic MC3T3-E1 cells via phosphorylation of p38 and ERK1/2.
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Affiliation(s)
- S Wang
- Department of Endodontics, Comprehensive Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Z Deng
- Department of Endodontics, Comprehensive Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China.,Shenzhen ENT Institute, Shenzhen, China
| | - X Ye
- Department of Endodontics, Comprehensive Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China.,School of Dentistry, Shandong University, Jinan, China
| | - X Geng
- Department of Stomatology, Shenzhen Longgang Center Hospital, ENT Hospital, Shenzhen, China
| | - C Zhang
- Department of Endodontics, Comprehensive Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
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Lopez BC, de Lourenço C, Alves D, Machado D, Lancellotti M, Sawaya A. Antimicrobial and cytotoxic activity of red propolis: an alert for its safe use. J Appl Microbiol 2015; 119:677-87. [DOI: 10.1111/jam.12874] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 05/25/2015] [Accepted: 06/09/2015] [Indexed: 01/26/2023]
Affiliation(s)
- B.G.-C. Lopez
- Bioscience and Technology of Bioactive Products Postgraduate Program; Pharmacy Course; Department of Plant Biology; Institute of Biology; State University of Campinas (UNICAMP); Campinas São Paulo Brazil
| | - C.C. de Lourenço
- Plant Biology Postgraduate Program; Department of Plant Biology; Institute of Biology - State University of Campinas (UNICAMP); Campinas São Paulo Brazil
| | - D.A. Alves
- Bioscience and Technology of Bioactive Products Postgraduate Program; Pharmacy Course; Department of Plant Biology; Institute of Biology; State University of Campinas (UNICAMP); Campinas São Paulo Brazil
- LABIOTEC - Biotechnology Laboratory; Department of Biochemistry; Institute of Biology; University of Campinas - UNICAMP; Campinas São Paulo Brazil
| | - D. Machado
- LABIOTEC - Biotechnology Laboratory; Department of Biochemistry; Institute of Biology; University of Campinas - UNICAMP; Campinas São Paulo Brazil
| | - M. Lancellotti
- Bioscience and Technology of Bioactive Products Postgraduate Program; Pharmacy Course; Department of Plant Biology; Institute of Biology; State University of Campinas (UNICAMP); Campinas São Paulo Brazil
- LABIOTEC - Biotechnology Laboratory; Department of Biochemistry; Institute of Biology; University of Campinas - UNICAMP; Campinas São Paulo Brazil
| | - A.C.H.F. Sawaya
- Bioscience and Technology of Bioactive Products Postgraduate Program; Pharmacy Course; Department of Plant Biology; Institute of Biology; State University of Campinas (UNICAMP); Campinas São Paulo Brazil
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Wang S, Deng Z, Seneviratne CJ, Cheung GSP, Jin L, Zhao B, Zhang C. Enterococcus faecalis promotes osteoclastogenesis and semaphorin 4D expression. Innate Immun 2015; 21:726-35. [DOI: 10.1177/1753425915593162] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 06/02/2015] [Indexed: 12/20/2022] Open
Abstract
Enterococcus faecalis is considered a major bacterial pathogen implicated in endodontic infections and contributes considerably to periapical periodontitis. This study aimed to investigate the potential mechanisms by which E. faecalis accounts for the bone destruction in periapical periodontitis in vitro. Osteoclast precursor RAW264.7 cells were treated with E. faecalis ATCC 29212 and a wild strain of E. faecalis derived clinically from an infected root canal. The results showed that, to some extent, E. faecalis induced the RAW264.7 cells to form tartrate-resistant acid phosphatase (TRAP)-positive multinucleated osteoclast-like cells. This pathogen markedly stimulated RAW264.7 cells to express semaphorin 4D (Sema4D), which inhibits bone formation. Once RAW264.7 cells were primed by low-dose receptor activator of nuclear factor-kappa B ligand (RANKL), E. faecalis could significantly increase the production of TRAP-positive multinucleated cells and up-regulate the expression of osteoclast-specific markers, including NFATc1, TRAP and cathepsin K. Both p38 and ERK1/2 MAPK signaling pathways were activated by E. faecalis in RANKL-primed RAW264.7 cells, and meanwhile the expression of Sema4D was highly increased. In conclusion, E. faecalis may greatly contribute to the bone resorption in periapical periodontitis by promoting RANKL-dependent osteoclastogenesis and expression of Sema4D through activation of p38 and ERK1/2 MAPK signaling pathways.
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Affiliation(s)
- Shuai Wang
- Endodontics, Comprehensive Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Zuhui Deng
- Endodontics, Comprehensive Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
- Shenzhen ENT Institute, Shenzhen, Guangdong, China
| | | | - Gary SP Cheung
- Endodontics, Comprehensive Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Lijian Jin
- Periodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Baohong Zhao
- Arthritis and Tissue Degeneration Program, and David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Chengfei Zhang
- Endodontics, Comprehensive Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
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Łysakowska ME, Ciebiada-Adamiec A, Sienkiewicz M, Sokołowski J, Banaszek K. The cultivable microbiota of primary and secondary infected root canals, their susceptibility to antibiotics and association with the signs and symptoms of infection. Int Endod J 2015; 49:422-30. [PMID: 26011084 DOI: 10.1111/iej.12469] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 05/18/2015] [Indexed: 11/29/2022]
Abstract
AIM To examine the presence of microbial species in primary and secondary infections and identify the signs and symptoms associated with them. METHODOLOGY A total number of 37 root canals from 33 patients undergoing root canal treatment were selected. Samples were taken using a sterile paper point following chemomechanical canal instrumentation. Microbiological identification was performed by macromorphological, micromorphological and commercial biochemical tests (ATB system). The antibiotic susceptibility profile of isolated Enterococcus, Streptococcus and Propionibacterium spp. was evaluated. RESULTS A total number of 54 species were isolated. The most common was E. faecalis followed by Propionibacterium acnes and Streptococcus spp. Five multidrug-resistant enterococcal strains were isolated. However, resistance to linezolid or glycopeptides was not found. Radiolucency was observed significantly more often in symptomatic infections (P = 0.0061) caused by Actinomyces spp. than in asymptomatic ones. CONCLUSIONS Enterococci and streptococci were the most commonly isolated bacteria from root canals. The resistance of enterococci to many antimicrobials may pose a problem in their eradication.
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Affiliation(s)
- M E Łysakowska
- Department of Microbiology and Medical Laboratory Immunology, Medical University of Lodz, Lodz, Poland
| | - A Ciebiada-Adamiec
- Medical Diagnostic Laboratory Center, Polish Mother's Memory Institute, Medical University of Lodz, Lodz, Poland
| | - M Sienkiewicz
- Department of Environmental Biology, Medical University of Lodz, Lodz, Poland
| | - J Sokołowski
- Department of General Dentistry, Medical University of Lodz, Lodz, Poland
| | - K Banaszek
- Department of General Dentistry, Medical University of Lodz, Lodz, Poland
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Microbiological Profile Resistant to Different Intracanal Medications in Primary Endodontic Infections. J Endod 2015; 41:824-30. [DOI: 10.1016/j.joen.2015.01.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/26/2015] [Accepted: 01/29/2015] [Indexed: 11/17/2022]
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Zhang C, Du J, Peng Z. Correlation between Enterococcus faecalis and Persistent Intraradicular Infection Compared with Primary Intraradicular Infection: A Systematic Review. J Endod 2015; 41:1207-13. [PMID: 26015157 DOI: 10.1016/j.joen.2015.04.008] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 02/15/2015] [Accepted: 04/13/2015] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The relationship between Enterococcus faecalis and pulpal or periradicular diseases has been studied for many years; however, whether E. faecalis is correlated with persistent intraradicular infections (teeth after failed endodontic treatments) compared with primary intraradicular infections remains controversial. The objective of this systematic review was to compare the prevalence of E. faecalis in primary and persistent intraradicular infections. METHODS An exhaustive literature search combined with specified inclusion criteria was performed to collect all studies comparing the prevalence of E. faecalis in root canals with primary and persistent intraradicular infections. Descriptive statistics were applied first because of the high heterogeneity among studies. Subgroup analysis according to different detecting methods (culture and polymerase chain reaction) and sensitivity analysis was then applied. Meta-analysis was conducted with the help of Stata/SE 12.0 (StataCorp, College Station, TX) after excluding studies with uncertain forms of pulpal and periradicular lesions in their primary infection groups. RESULTS The systematic review included 10 studies covering 972 teeth. Among them, 2 studies used the culture technique, 6 studies used polymerase chain reaction, and the other 2 used both techniques. The detection rate of E. faecalis by both methods was higher in persistent infections compared with untreated chronic periapical periodontitis as primary infections. The difference was statistically significant (odds ratio = 7.247; 95% confidence interval, 4.039-13.002). CONCLUSIONS E. faecalis is more highly correlated with persistent intraradicular infections compared with untreated chronic periapical periodontitis.
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Affiliation(s)
- Chenjiao Zhang
- Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology, Institute of Stomatological Research, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jianrong Du
- Department of Stomatology, Guangdong No. 2 Provincial People's Hospital, Guangdong, China
| | - Zhixiang Peng
- Department of Operative Dentistry and Endodontics, Guanghua School and Hospital of Stomatology, Institute of Stomatological Research, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, China.
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Frough Reyhani M, Yavari H, Ghasemi N, Rahimi S, Soroush Barhaghi MH, Mokhtari H, Sarikhani P. Comparing the Coronal Seal of Different Thicknesses of MTA with Gutta-Percha after Post Space Preparation. ScientificWorldJournal 2015; 2015:708639. [PMID: 25984559 PMCID: PMC4423004 DOI: 10.1155/2015/708639] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 03/30/2015] [Indexed: 01/12/2023] Open
Abstract
INTRODUCTION The aim of this study was to compare the coronal seal of different thicknesses of MTA with gutta-percha after post space preparation. MATERIALS AND METHODS A total of 50 maxillary central incisors randomly divided into 5 experimental groups (n = 8). After preparation of the root canals with step back technique, in groups 1 and 2, post spaces were prepared and 4 or 5 mm gutta-percha remained in the apical, respectively. In groups 3, 4, and 5, there was 1-2 and 3 mm MTA in the apical, respectively. The ten teeth serve as control groups. The teeth were connected to a bacterial microleakage evaluation system. The study period was 120 days and the samples were evaluated on ten-day intervals; Meier-Kaplan technique was used for estimation of the mean time of microleakage to occur. Log-rank test was used for comparison of microleakage. RESULTS Number of samples exhibiting microleakage in MTA was less than those of gutta-percha at all intervals. Means of days with no microleakage were maximum and minimum with 3 mm MTA and 4 mm gutta-percha, respectively. CONCLUSION Obturation of root canals using the MTA technique provides a proper seal with the minimum thickness of MTA in teeth requiring post space preparation.
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Affiliation(s)
- Mohammad Frough Reyhani
- Department of Endodontics, Dental Faculty, Tabriz University (Medical Sciences), Tabriz 5154613475, Iran
| | - Hamidreza Yavari
- Department of Endodontics, Dental Faculty, Tabriz University (Medical Sciences), Tabriz 5154613475, Iran
| | - Negin Ghasemi
- Department of Endodontics, Dental Faculty, Tabriz University (Medical Sciences), Tabriz 5154613475, Iran
| | - Saeed Rahimi
- Dental and Periodontal Research Center, Dental Faculty, Tabriz University (Medical Sciences), Tabriz 5154613475, Iran
| | | | - Hadi Mokhtari
- Department of Endodontics, Dental Faculty, Tabriz University (Medical Sciences), Tabriz 5154613475, Iran
| | - Payman Sarikhani
- Dental Faculty, Tabriz University (Medical Sciences), Tabriz 5154613475, Iran
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Abstract
Actinomyces israelii has long been recognized as a causative agent of actinomycosis. During the past 3 decades, a large number of novel Actinomyces species have been described. Their detection and identification in clinical microbiology laboratories and recognition as pathogens in clinical settings can be challenging. With the introduction of advanced molecular methods, knowledge about their clinical relevance is gradually increasing, and the spectrum of diseases associated with Actinomyces and Actinomyces-like organisms is widening accordingly; for example, Actinomyces meyeri, Actinomyces neuii, and Actinomyces turicensis as well as Actinotignum (formerly Actinobaculum) schaalii are emerging as important causes of specific infections at various body sites. In the present review, we have gathered this information to provide a comprehensive and microbiologically consistent overview of the significance of Actinomyces and some closely related taxa in human infections.
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Zomorodian K, Ghadiri P, Saharkhiz MJ, Moein MR, Mehriar P, Bahrani F, Golzar T, Pakshir K, Fani MM. Antimicrobial activity of seven essential oils from Iranian aromatic plants against common causes of oral infections. Jundishapur J Microbiol 2015; 8:e17766. [PMID: 25793100 PMCID: PMC4353034 DOI: 10.5812/jjm.17766] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 04/26/2014] [Accepted: 09/22/2014] [Indexed: 01/12/2023] Open
Abstract
Background: Over the past two decades, there has been a growing trend in using oral hygienic products originating from natural resources such as essential oils (EOs) and plant extracts. Seven aromatic plants used in this study are among popular traditional Iranian medicinal plants with potential application in modern medicine as anti-oral infectious diseases. Objectives: This study was conducted to determine the chemical composition and antimicrobial activities of essential oils from seven medicinal plants against pathogens causing oral infections. Materials and Methods: The chemical compositions of EOs distilled from seven plants were analyzed by gas chromatography/mass spectrometry (GC/MS). These plants included Satureja khuzestanica, S. bachtiarica, Ocimum sanctum, Artemisia sieberi, Zataria multiflora, Carum copticum and Oliveria decumbens. The antimicrobial activity of the essential oils was evaluated by broth micro-dilution in 96 well plates as recommended by the Clinical and Laboratory Standards Institute (CLSI) methods. Results: The tested EOs inhibited the growth of examined oral pathogens at concentrations of 0.015-16 µL/mL. Among the examined oral pathogens, Enterococcus faecalis had the highest Minimum Inhibitory Concentrations (MICs) and Minimum Microbicidal Concentrations (MMCs). Of the examined EOs, S. khuzestanica, Z. multiflora and S. bachtiarica, showed the highest antimicrobial activities, respectively, while Artemisia sieberi exhibited the lowest antimicrobial activity. Conclusions: The excellent antimicrobial activities of the tested EOs might be due to their major phenolic or alcoholic monoterpenes with known antimicrobial activities. Hence, these EOs can be possibly used as an antimicrobial agent in treatment and control of oral pathogens.
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Affiliation(s)
- Kamiar Zomorodian
- Basic Sciences in Infectious Disease Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Pooria Ghadiri
- Student Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Mohammad Jamal Saharkhiz
- Department of Horticultural Sciences, Faculty of Agriculture, Shiraz University, Shiraz, IR Iran
| | - Mohammad Reza Moein
- Department of Pharmacognos, Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Peiman Mehriar
- Florida Institute for Advanced Dental Education, Miami, Florida, USA
- Corresponding author: Peiman Mehriar, Florida Institute for Advanced Dental Education, Miami, Florida, USA. Tel: +1-3106503034, E-mail:
| | - Farideh Bahrani
- Department of Prosthodontics, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Tahereh Golzar
- Student Research Committee, School of Medicine, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Keyvan Pakshir
- Department of Medical Mycology and Parasitology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Mohammad Mehdi Fani
- Department of Oral Medicine, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, IR Iran
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Fabris AS, Nakano V, Avila-Campos MJ. Bacteriological analysis of necrotic pulp and fistulae in primary teeth. J Appl Oral Sci 2014; 22:118-24. [PMID: 24676582 PMCID: PMC3956403 DOI: 10.1590/1678-775720130358] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Accepted: 01/13/2014] [Indexed: 11/21/2022] Open
Abstract
Objectives Primary teeth work as guides for the eruption of permanent dentition, contribute
for the development of the jaws, chewing process, preparing food for digestion,
and nutrient assimilation. Treatment of pulp necrosis in primary teeth is complex
due to anatomical and physiological characteristics and high number of bacterial
species present in endodontic infections. The bacterial presence alone or in
association in necrotic pulp and fistula samples from primary teeth of boys and
girls was evaluated. Material and Methods Necrotic pulp (103) and fistula (7) samples from deciduous teeth with deep caries
of 110 children were evaluated. Bacterial morphotypes and species from all
clinical samples were determined. Results A predominance of gram-positive cocci (81.8%) and gram-negative
coccobacilli (49.1%) was observed. In 88 out of 103 pulp samples, a
high prevalence of Enterococcus spp. (50%), Porphyromonas
gingivalis (49%), Fusobacterium nucleatum (25%) and
Prevotella nigrescens (11.4%) was observed.
Porphyromonas gingivalis was detected in three out of seven fistula
samples, Enterococcus spp. in two out of seven samples, and
F. nucleatum, P. nigrescens and D.
pneumosintes in one out of seven samples. Conclusions Our results show that Enterococcus spp. and P.
gingivalis were prevalent in necrotic pulp from deciduous teeth in
boys from 2 to 5 years old, and that care of the oral cavity of children up to
five years of age is important.
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Affiliation(s)
- Antonio Scalco Fabris
- Anaerobe Laboratory, Department of Microbiology, Institute of Biomedical Sciences, University of Sao Paulo, SP, Brazil
| | - Viviane Nakano
- Anaerobe Laboratory, Department of Microbiology, Institute of Biomedical Sciences, University of Sao Paulo, SP, Brazil
| | - Mario Julio Avila-Campos
- Anaerobe Laboratory, Department of Microbiology, Institute of Biomedical Sciences, University of Sao Paulo, SP, Brazil
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Abstract
Acute apical abscess is the most common form of dental abscess and is caused by infection of the root canal of the tooth. It is usually localized intraorally, but in some cases the apical abscess may spread and result in severe complications or even mortality. The reasons why dental root canal infections can become symptomatic and evolve to severe spreading and sometimes life-threatening abscesses remain elusive. Studies using culture and advanced molecular microbiology methods for microbial identification in apical abscesses have demonstrated a multispecies community conspicuously dominated by anaerobic bacteria. Species/phylotypes commonly found in these infections belong to the genera Fusobacterium, Parvimonas, Prevotella, Porphyromonas, Dialister, Streptococcus, and Treponema. Advances in DNA sequencing technologies and computational biology have substantially enhanced the knowledge of the microbiota associated with acute apical abscesses and shed some light on the etiopathogeny of this disease. Species richness and abundance and the resulting network of interactions among community members may affect the collective pathogenicity and contribute to the development of acute infections. Disease modifiers, including transient or permanent host-related factors, may also influence the development and severity of acute abscesses. This review focuses on the current evidence about the etiology and treatment of acute apical abscesses and how the process is influenced by host-related factors and proposes future directions in research, diagnosis, and therapeutic approaches to deal with this disease.
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Yao N, Zhang C, Chu C. Effectiveness of Photoactivated Disinfection (PAD) to Kill Enterococcus faecalis in Planktonic Solution and in an Infected Tooth Model. Photomed Laser Surg 2012; 30:699-704. [DOI: 10.1089/pho.2011.3216] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Na Yao
- The Second Dental Center, Peking University School and Hospital of Stomatology Beijing, China
| | - Chengfei Zhang
- Department of Endodontics, Faculty of Dentistry, University of Hong Kong, Hong Kong SAR, China
| | - Chunhung Chu
- Oral Diagnosis and Polyclinic, Faculty of Dentistry, University of Hong Kong, Hong Kong SAR, China
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Mashimo C, Kamitani H, Nambu T, Yamane K, Yamanaka T, Sugimori-Shinozuka C, Tatami T, Inoue J, Kamei M, Morita S, Leung KP, Fukushima H. Identification of the genes involved in the biofilm-like structures on actinomyces oris K20, a clinical isolate from an apical lesion. J Endod 2012; 39:44-8. [PMID: 23228256 DOI: 10.1016/j.joen.2012.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 08/21/2012] [Accepted: 08/21/2012] [Indexed: 12/29/2022]
Abstract
INTRODUCTION Although the production of biofilm is thought to be crucial in the pathogenesis of abscess formations caused by oral resident microorganisms, the particular mechanisms are still unknown. The aim of this study was to identify gene(s) responsible for maintaining the cell surface-associated meshwork-like structures, which are found in some biofilm-producing bacteria, in a clinical isolate of Actinomyces oris K20. METHODS Random insertional mutagenesis by using transposon EZ-Tn5 was performed against the strain K20. Transposon insertion mutants were screened by scanning electron microscopy for the absence of cell surface-associated meshwork-like structures. The disrupted genes by the transposon insertion were determined by direct genome sequencing with the transposon-end primers. RESULTS Five mutants without the meshwork-like structures were identified from 175 mutants. Sequencing of flanking regions of transposon insertion revealed that 3 mutants had a gene encoded polysaccharide deacetylase, Spo0J containing ParB-like nuclease domain, and hypothetical protein, respectively. The other 2 mutants had an insertion in a noncoding region and an unidentified region, respectively. CONCLUSIONS Our findings indicated that these genes might be involved in the formation of meshwork-like structures on Actinomyces oris K20.
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Affiliation(s)
- Chiho Mashimo
- Department of Bacteriology, Osaka Dental University, Osaka, Japan.
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Saha S, Tomaro-Duchesneau C, Tabrizian M, Prakash S. Probiotics as oral health biotherapeutics. Expert Opin Biol Ther 2012; 12:1207-20. [PMID: 22690730 DOI: 10.1517/14712598.2012.693474] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Oral health is affected by its resident microorganisms. Three prominent oral disorders are dental caries, gingivitis and periodontitis, with the oral microbiota playing a key role in the initiation/progression of all three. Understanding the microbiota and the diseases they may cause is critical to the development of new therapeutics. This review is focused on probiotics for the prevention and/or treatment of oral diseases. AREAS COVERED This review describes the oral ecosystem and its correlation with oral health/disease. The pathogenesis and current prevention/treatment strategies of periodontal diseases (PD) and dental caries (DC) are depicted. An introduction of probiotics is followed by an analysis of their role in PD and DC, and their potential role(s) in oral health. Finally, a discussion ensues on the future research directions and limitations of probiotics for oral health. EXPERT OPINION An effective oral probiotic formulation should contribute to the prevention/treatment of microbial diseases of the oral cavity. Understanding the oral microbiota's role in oral disease is important for the development of a therapeutic to prevent/treat dental diseases. However, investigations into clinical efficacy, delivery/dose optimization, mechanism(s) of action and other related parameters are yet to be fully explored. Keeping this in mind, investigations into oral probiotic therapies are proving promising.
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Affiliation(s)
- Shyamali Saha
- McGill University, Physiology and Artificial Cells and Organs Research Centre, Departments of Biomedical Engineering, Biomedical Technology and Cell Therapy, Research Laboratory, Faculty of Medicine, 3775 University Street, Montreal, Quebec, H3A 2B4, Canada
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Ito IY, Junior FM, Paula-Silva FWG, Da Silva LAB, Leonardo MR, Nelson-Filho P. Microbial culture and checkerboard DNA-DNA hybridization assessment of bacteria in root canals of primary teeth pre- and post-endodontic therapy with a calcium hydroxide/chlorhexidine paste. Int J Paediatr Dent 2011; 21:353-60. [PMID: 21481034 DOI: 10.1111/j.1365-263x.2011.01131.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM To investigate the root canal microbiota of primary teeth with apical periodontitis and the in vivo antimicrobial effects of a calcium hydroxide/chlorhexidine paste used as root canal dressing. DESIGN Baseline samples were collected from 30 root canals of primary teeth with apical periodontitis. Then, the root canals were filled with a calcium hydroxide paste containing 1% chlorhexidine for 14 days and the second bacteriologic samples were taken prior to root canal filling. Samples were submitted to microbiologic culture procedure to detect root canal bacteria and processed for checkerboard DNA-DNA hybridization. RESULTS Baseline microbial culture revealed high prevalence and cfu number of anaerobic, black-pigmented bacteroides, Streptococcus, and aerobic microorganisms. Following root canal dressing, the overall number of cfu was dramatically diminished compared to initial contamination (P <0.05), although prevalence did not change (P > 0.05). Of 35 probes used for checkerboard DNA-DNA hybridization, 31 (88.57%) were present at baseline, and following root canal dressing, the number of positive probes reduced to 13 (37.14%). Similarly, the number of bacterial cells diminished folowing application of calcium hydroxide/chlorhexidine root canal dressing (P = 0.006). CONCLUSION Apical periodontitis is caused by a polymicrobial infection, and a calcium hydroxide/chlorhexidine paste is effective in reducing the number of bacteria inside root canals when applied as a root canal dressing.
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Affiliation(s)
- Izabel Yoko Ito
- Department of Clinical Analysis, Toxicology and Bromatology, School of Pharmaceutical Sciences of Ribeirão Preto, Ribeirão Preto, SP, Brazil
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FIGDOR DAVID, GULABIVALA KISHOR. Survival against the odds: microbiology of root canals associated with post-treatment disease. ACTA ACUST UNITED AC 2011. [DOI: 10.1111/j.1601-1546.2011.00259.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ozbek SM, Ozbek A, Erdorgan AS. Analysis of Enterococcus faecalis in samples from Turkish patients with primary endodontic infections and failed endodontic treatment by real-time PCR SYBR green method. J Appl Oral Sci 2010; 17:370-4. [PMID: 19936510 PMCID: PMC4327658 DOI: 10.1590/s1678-77572009000500004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2008] [Accepted: 11/30/2008] [Indexed: 11/22/2022] Open
Abstract
Objective: The aims of this study were to investigate the presence of Enterococcus faecalis in primary endodontic infections and failed endodontic treatments using real-time PCR and to determine the statistical importance of the presence of E. faecalis in a Turkish population with endodontic infections. Material and Methods: E. faecalis was investigated from 79 microbial samples collected from patients who were treated at the Endodontic Clinic of the Dental School of Atatürk University (Erzurum, Turkey). Microbial samples were taken from 43 patients (Group 1) with failed endodontic treatments and 36 patients (Group 2) with chronic apical periodontitis (primary endodontic infections). DNA was extracted from the samples by using a QIAamp® DNA mini-kit and analyzed with real-time PCR SYBR Green. Results: E. faecalis was detected in 41 out of 79 patients, suggesting that it exists in not less than 61% of all endodontic infections when the proportion test (z= -1.645, <x= 0.05) was applied. Real-time PCR SYBR Green allowed for the detection of E. faecalis in 32 out of 43 (74.4%) in Group 1, and in 9 out of 36 (25%) in Group 2. Conclusions: These results suggest that E. faecalis is a frequent isolate for endodontic infections in Turkish patients, and is more often associated with failed endodontic treatments than primary endodontic infections.
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Affiliation(s)
- Selcuk M Ozbek
- Department of Endodontics, Dental School, Ataturk University, Erzurum, Turkey
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Abstract
Although fungi, archaea, and viruses contribute to the microbial diversity in endodontic infections, bacteria are the most common micro-organisms occurring in these infections. Datasets from culture and molecular studies, integrated here for the first time, showed that over 460 unique bacterial taxa belonging to 100 genera and 9 phyla have been identified in different types of endodontic infections. The phyla with the highest species richness were Firmicutes, Bacteroidetes, Actinobacteria, and Proteobacteria. Diversity varies significantly according to the type of infection. Overall, more taxa have been disclosed by molecular studies than by culture. Many cultivable and as-yet-uncultivated phylotypes have emerged as candidate pathogens based on detection in several studies and/or high prevalence. Now that a comprehensive inventory of the endodontic microbial taxa has been established, future research should focus on the association with different disease conditions, functional roles in the community, and susceptibility to antimicrobial treatment procedures.
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Affiliation(s)
- J F Siqueira
- Department of Endodontics and Molecular Microbiology, Faculty of Dentistry, Estácio de Sá University, Av. Alfredo Baltazar da Silveira, 580/cobertura, Recreio, Rio de Janeiro, RJ, Brazil.
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Brundin M, Figdor D, Sundqvist G, Sjögren U. Starvation response and growth in serum of Fusobacterium nucleatum, Peptostreptococcus anaerobius, Prevotella intermedia, and Pseudoramibacter alactolyticus. ACTA ACUST UNITED AC 2009; 108:129-34. [DOI: 10.1016/j.tripleo.2009.03.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2009] [Accepted: 03/06/2009] [Indexed: 11/26/2022]
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Meire MA, De Prijck K, Coenye T, Nelis HJ, De Moor RJG. Effectiveness of different laser systems to killEnterococcus faecalisin aqueous suspension and in an infected tooth model. Int Endod J 2009; 42:351-9. [DOI: 10.1111/j.1365-2591.2008.01532.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Affiliation(s)
- M Zehnder
- Department of Preventive Dentistry, Periodontology, and Cariology, University of Zürich Center of Dental Medicine, Zürich, Switzerland.
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Abstract
The acute dental abscess is frequently underestimated in terms of its morbidity and mortality. The risk of potential serious consequences arising from the spread of a dental abscess is still relevant today with many hospital admissions for dental sepsis. The acute dental abscess is usually polymicrobial comprising facultative anaerobes, such as viridans group streptococci and the Streptococcus anginosus group, with predominantly strict anaerobes, such as anaerobic cocci, Prevotella and Fusobacterium species. The use of non-culture techniques has expanded our insight into the microbial diversity of the causative agents, identifying such organisms as Treponema species and anaerobic Gram-positive rods such as Bulleidia extructa, Cryptobacterium curtum and Mogibacterium timidum. Despite some reports of increasing antimicrobial resistance in isolates from acute dental infection, the vast majority of localized dental abscesses respond to surgical treatment, with antimicrobials limited to spreading and severe infections. The microbiology and treatment of the acute localized abscess and severe spreading odontogenic infections are reviewed.
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Affiliation(s)
- D. Robertson
- Department of Restorative Dentistry, University of Glasgow, Medical Faculty, Glasgow Dental Hospital and School, 378 Sauchiehall Street, Glasgow G2 3JZ, UK
| | - A. J. Smith
- Infection and Immunity Section, University of Glasgow, Medical Faculty, Glasgow Dental Hospital and School, 378 Sauchiehall Street, Glasgow G2 3JZ, UK
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Cogulu D, Uzel A, Oncag O, Eronat C. PCR-based identification of selected pathogens associated with endodontic infections in deciduous and permanent teeth. ACTA ACUST UNITED AC 2008; 106:443-9. [PMID: 18547832 DOI: 10.1016/j.tripleo.2008.03.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2007] [Revised: 02/29/2008] [Accepted: 03/01/2008] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The aim of the present study was to evaluate the presence of the selected pathogens in samples from deciduous and permanent tooth root canals by using PCR method and to determine the association of these organisms with clinical symptoms. STUDY DESIGN A total of 145 children, 5 to 13 years old, were involved in this study. The presence of selected pathogens (Actinomyces israelii, Candida albicans, Enterococcus faecalis, Fusobacterium nucleatum, Porphyromonas endodontalis, Porphyromonas gingivalis, Prevotella intermedia, Streptococcus intermedius, Treponema denticola, Parvimonas micra, Tannerella forsythensis, Enterococcus faecium, Prevotella melaninogenica) in infected root canals was studied using PCR. RESULTS T. denticola (P = .012, .02) and E. faecalis (P = .012, .04) were highly associated with periapical radiolucency and previous pain, while P. gingivalis was associated with tenderness to percussion in both deciduous and permanent teeth (P = .01, .015). CONCLUSION The results of the present study confirm that certain species of microorganisms are associated with clinical signs and symptoms of endodontic disease in both deciduous and permanent teeth.
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Affiliation(s)
- Dilsah Cogulu
- Department of Pedodontics, Ege University, School of Dentistry, Bornova-Izmir, Turkey.
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Antibacterial properties of four endodontic sealers. J Endod 2008; 34:735-8. [PMID: 18498902 DOI: 10.1016/j.joen.2008.03.012] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2008] [Revised: 03/15/2008] [Accepted: 03/16/2008] [Indexed: 11/21/2022]
Abstract
The purpose of this study was to evaluate the antimicrobial effects of root canal sealers. The direct contact test (DCT) was used to assess the antibacterial properties of AH plus, Apexit Plus, Epiphany SE, and RoekoSeal when in contact with Enterococcus faecalis. The materials were examined immediately after setting and 1, 2, 7, and 14 days after aging in phosphate-buffered-saline. Statistical analysis with two-way analysis of variance, one-way analysis of variance, and Tukey multiple comparison was applied to the data. Apexit Plus had a short-term antibacterial effect of 1 day on E. faecalis, whereas Epiphany SE enhanced bacterial growth for at least 7 days. AH plus and RoekoSeal were ineffective.
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Sassone LM, Fidel R, Faveri M, Fidel S, Figueiredo L, Feres M. Microbiological evaluation of primary endodontic infections in teeth with and without sinus tract. Int Endod J 2008; 41:508-15. [PMID: 18422583 DOI: 10.1111/j.1365-2591.2008.01397.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM To examine the microbiological status of primary endodontic infections in teeth with and without a sinus tract. METHODOLOGY Samples were collected by means of a size 15 H-type file and two sterile paper points from 30 cases of primary endodontic infections with (n = 15) or without (n = 15) a sinus tract. The presence of 40 bacterial species was determined by the checkerboard DNA-DNA hybridization method. RESULTS The species found at the highest levels and prevalence were Fusobacterium nucleatum sp. vincentii, Porphyromonas gingivalis, Veillonella parvula, Enterococcus faecalis, Campylobacter gracilis and Neisseria mucosa. Total bacterial counts were similar between teeth with (44 x 10(5)) and without (50 x 10(5)) a sinus tract (t-test: P > 0.05). E. faecalis, Streptococcus anginosus, Capnocytophaga sputigena and Capnocytophaga gingivalis had significantly higher counts in the absence of sinus tract (Mann-Whitney test, P < 0.05). Higher levels of P. gingivalis and Fusobacterium nucleatum sp. nucleatum were observed in cases with a sinus tract. Leptotrichia buccalis (OR = 1.83; CI 95%) and Porphyromonas endodontalis (OR = 2.15; CI 95%) were associated with an increased chance of subjects having a sinus tract. CONCLUSIONS Primary endodontic infections were associated with a large variety of bacterial species. Specific differences between the composition of the microbiota of primary root canal infections were observed in cases with or without a sinus tract.
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Affiliation(s)
- L M Sassone
- Proclin Department, School of Dentistry, Rio de Janeiro State University, Rio de Janeiro, Brazil
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Cogulu D, Oncag O, Kutukculer N, Uzel A, Eronat C. The correlation between serum immunoglobulin A and immunoglobulin G levels and the presence of Treponema denticola in human periapical lesions. J Endod 2008; 33:1413-6. [PMID: 18037048 DOI: 10.1016/j.joen.2007.08.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2007] [Revised: 08/29/2007] [Accepted: 08/29/2007] [Indexed: 11/26/2022]
Abstract
The aim of this study was to compare the serum immunoglobulin A (IgA) and immunoglobulin G (IgG) levels and the presence of Treponema denticola in the root canals in a group of teeth with/without periapical lesion. A total of 66 children aged 8 to 13 years old were involved in this study. Five milliliters of blood samples were taken to detect the serum IgA and IgG levels. Sixty-six endodontic samplings were also obtained to determine the presence of T. denticola by polymerase chain reaction. The presence of T. denticola between the groups with/without periapical lesion was statistically significant (p = 0.026). A significant negative correlation was found between serum IgG and IgA levels and the presence of T. denticola (p = 0.023 and 0.038, respectively). This study may support the hypothesis that the presence of T. denticola in the root canals is mainly related to the periapical lesions, and the higher levels of serum IgG and IgA levels may protect against T. denticola.
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Affiliation(s)
- Dilsah Cogulu
- Department of Pediatric Dentistry, School of Dentistry, Ege University School of Medicine, Izmir, Turkey.
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