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BMC Oral Health Jun 2020The use of silver-formulation as microbicide to arrest dentinal caries is gaining popularity. The primary objective of the present appraisal was to systematically review...
BACKGROUND
The use of silver-formulation as microbicide to arrest dentinal caries is gaining popularity. The primary objective of the present appraisal was to systematically review the clinical (in vivo) applications and antimicrobial potential of silver-containing formulations in arresting dentinal caries. Our secondary aim was to sum up the available in vitro applications of silver-containing formulations against cariogenic microbes isolated from dentine lesions.
METHODS
Ovid MEDLINE, EBSCO host, Web of Science, and Cochrane Library databases was searched between January 2009-May 2019.
RESULTS
In vivo: We observed conflicting evidence of antimicrobial efficacy of SDF on a diverse array of microbial taxa present in carious dentine of primary and permanent teeth. Moreover, there is insufficient evidence on the application of AgNP-fluoride as an effective microbicidal against cariogens of dentine lesions. In vitro: We found a good evidence of microbicidal efficacy of silver diamine fluoride (SDF) on selective cariogenic microbes in human dentine model. Additionally, a good evidence was noted of in vitro application of silver nanoparticles (AgNPs) as a useful microbicidal against S. mutans adhesion, growth and subsequent biofilm formation in human dentine models.
CONCLUSIONS
Taken together, in vitro evidence indicates the promising antimicrobial potential of silver-based formulations (SDF and nanosilver) against the predominant cariogenic flora, particularly from dentine lesions. Post-treatment clinical data of either the bactericidal and bacteriostatic effects of SDF or nanosilver are sparse. Furthermore, the current understanding of the specific size, concentration, antimicrobial mechanisms, and toxicological aspects of nano-silver compounds is inadequate to draw firm conclusions on their clinical utility.
Topics: Anti-Infective Agents; Biofilms; Cariostatic Agents; Dental Caries; Fluorides, Topical; Humans; Metal Nanoparticles; Microbial Viability; Quaternary Ammonium Compounds; Silver; Silver Compounds; Streptococcus mutans; Treatment Outcome
PubMed: 32493272
DOI: 10.1186/s12903-020-01133-3 -
Scandinavian Journal of Primary Health... Jun 2020The pathogenicity of beta-hemolytic group C (GCS) in patients attending for an uncomplicated acute sore throat is unknown and it was the objective to clarify this.... (Meta-Analysis)
Meta-Analysis
The pathogenicity of beta-hemolytic group C (GCS) in patients attending for an uncomplicated acute sore throat is unknown and it was the objective to clarify this. Systematic literature review with meta-analysis. Medline and Scopus were searched from inception to February 2019, with searches of reference lists, case-control studies stating prevalence of GCS in patients as well as healthy controls presented for children and adults separately. Studies including patients already treated with antibiotics and studies focused on patients with HIV, malignancy or immunosuppression were not included. Pooled prevalence of GCS was compared between patients and controls using chi-square and was further explored by calculating the positive etiologic predictive value (P-EPV) showing the post-test probability of a link between a sore throat and the bacterial finding. P-EPV for GCS was compared with that for group A (GAS) using figures from the same publications and patients. Eleven studies were included. The prevalence of GCS among patients versus controls was similar in children (3.15 versus 2.87%, = .44) but for adults higher in patients (11%) than in controls (5.6%) ( < .0001). The P-EPV for finding GCS in children with a sore throat was 9.3% (0.0-41%). The corresponding P-EPV for GCS in adults with a sore throat was 53% (36-67%) while the corresponding P-EPV for GAS in adults was 94% (90-96%). GCS do not seem associated with the uncomplicated acute sore throat in children but there is support for an association in adults being weaker than for GAS. A possible consequence is to ignore GCS in otherwise healthy patients at their first visit for an uncomplicated sore throat. This would enable a stronger focus on the use of modern point of care tests (POCTs) to detect GAS.Key pointsThere is no current consensus on the pathogenicity of group C beta-hemolytic (GCS) in patients attending for an uncomplicated acute sore throat.This systematic literature review concludes it is unlikely that GCS is involved in the uncomplicated sore throat in otherwise healthy children.This meta-analysis found a moderate link between GCS and the uncomplicated sore throat in adults.The link in adults between GCS and the sore throat is much weaker than the corresponding link for group A beta-hemolytic
Topics: Adult; Child; Humans; Pharyngitis; Species Specificity; Streptococcal Infections; Streptococcus; Streptococcus anginosus
PubMed: 32362178
DOI: 10.1080/02813432.2020.1753374 -
Oral Health & Preventive Dentistry Apr 2020To assess the efficacy of licorice lollipops in reducing dental caries in children.
PURPOSE
To assess the efficacy of licorice lollipops in reducing dental caries in children.
MATERIALS AND METHODS
A literature search was confined to the English language using MeSH terms congruent with PICO format in 'PubMed', 'Cochrane Library' and 'Ovid', covering the period from April 1967 to December 2017. Searches in Google Scholar, grey literature and hand search of cross-references were performed to find additional data. Suitable studies were selected based on the predefined inclusion and exclusion criteria. Quality analysis and risk of bias of the selected studies were performed using the Cochrane Collaboration's tool for risk of bias.
RESULTS
Overall 519 articles were retrieved, 516 (electronic databases) and 3 (Google scholar). 516 publications were excluded due to non-availability of abstracts, or because they were unrelated studies, narrative reviews, and systematic reviews as well as letters to editors. Only three studies were included for final analysis. Quality analysis of these three studies showed that only one was of high quality, whereas the other two were rated as low.
CONCLUSION
Licorice lollipops showed a promising effect in reducing caries by decreasing Streptococcus mutans counts in the saliva. Further research using randomised controlled clinical trial (RCT) designs with large sample size are recommended.
Topics: Child; Dental Caries; Glycyrrhiza; Humans; Plant Extracts; Randomized Controlled Trials as Topic; Saliva; Streptococcus mutans
PubMed: 32238980
DOI: 10.3290/j.ohpd.a44138 -
International Orthodontics Jun 2020Biofilm accumulation around orthodontic brackets and composite is a common complication of orthodontic treatment. (Meta-Analysis)
Meta-Analysis
An in vitro evaluation of the effects of nanoparticles on shear bond strength and antimicrobial properties of orthodontic adhesives: A systematic review and meta-analysis study.
INTRODUCTION
Biofilm accumulation around orthodontic brackets and composite is a common complication of orthodontic treatment.
OBJECTIVE
A systematic review and meta-analysis were done to find out whether the association of nanoparticles with the orthodontic adhesives compromises its properties and whether there are exceptional nanoparticles exhibiting excellent antimicrobial potential against cariogenic bacteria along with remarkable mechanical properties.
MATERIALS AND METHODS
Electronic databases were searched using the following keywords; orthodontic or orthodontics and antimicrobial or antibacterial and adhesive and nanoparticles and shear bond strength. Thirteen studies were included and meta-analysis was performed.
RESULTS
The results indicated no drastic changes in mechanical properties (0.812, 95% CI [0.750, 0.861], P=0.000). The Ag-HA, Cur, Cur-ZnO, and TiO in concentration≥1% showed a statistically significant difference, where the control groups had higher shear bond strength. Nine studies assessed the antimicrobial properties of nanoparticles. 1 wt% Cu and 5 wt% TiO not only did not affect shear bond strength but also showed more antimicrobial activity against Streptococcus mutans. The analysis demonstrated the absence of heterogeneity (Q value=44.014; df (Q)=12; and I=72.736) in shear bond strength of orthodontic adhesives with nanoparticles, with low risk of bias.
CONCLUSIONS
Adding≤5 wt% antimicrobial nanoparticles to an orthodontic adhesive is less conducive to microbial growth than unmodified adhesive and does not influence bracket-enamel bond strength.
Topics: Anti-Infective Agents; Biofilms; Dental Cements; Dental Stress Analysis; In Vitro Techniques; Nanoparticles; Orthodontic Brackets; Shear Strength; Streptococcus mutans
PubMed: 32088136
DOI: 10.1016/j.ortho.2020.01.011 -
Nutrition and Health Mar 2020Dental caries are the most prominent chronic disease of children and adults worldwide, and facilitating evidence-based, preventative care for their prevention is... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Dental caries are the most prominent chronic disease of children and adults worldwide, and facilitating evidence-based, preventative care for their prevention is critical. Caries are traditionally and successfully prevented by regular fluoride use, but there are opportunities to halt and restore caries with alternative agents in addition to fluoride use. Grape seed extract (GSE) is a readily available plant-based supplement that, due to its concentrated levels of proanthocyanidins, has promising characteristics that may assist in dental caries prevention.
AIM
The goal of this review was to investigate whether current research supports use of grape seed extract to prevent dental caries formation.
METHODS
A systematic review of articles related to grape seed extract, prevention of dental caries, inhibition of , and remineralization was conducted. Articles were first chosen by inclusion of dental models that used grape seed extract as an intervention, and then by strength of study design.
RESULTS
Twenty articles were reviewed. Studies overall supported three unique grape seed extract properties facilitating dental caries prevention. In the first articles reviewed, grape seed extract inhibited proliferation of bacterial biofilms on tooth surfaces. In addition, studies reviewed indicated that grape seed extract promoted dental remineralization.
CONCLUSIONS
Caries prevention by grape seed extract may be unique compared with fluoride, and is linked to grape seed extract's bacteriostatic and collagen crosslinking properties. Future research should investigate potential delivery methods, and benefits of combined grape seed extract use with known caries preventative agents, in human participants.
Topics: Adult; Antioxidants; Biofilms; Child; Dental Caries; Fluorides; Grape Seed Extract; Humans; Proanthocyanidins; Streptococcus mutans; Tooth Remineralization
PubMed: 31760860
DOI: 10.1177/0260106019887890 -
Photodiagnosis and Photodynamic Therapy Sep 2019There is still no systematized evidence in the literature regarding the combination of curcumin to improve the effects of antimicrobial photodynamic therapy (aPDT) on...
BACKGROUND
There is still no systematized evidence in the literature regarding the combination of curcumin to improve the effects of antimicrobial photodynamic therapy (aPDT) on complex oral biofilms. Therefore, the objective of this review was to systematically assess the antimicrobial effect of curcumin-mediated aPDT on the vitality of biofilms of microorganisms Streptococcus mutans and Candida albicans.
METHODS
The addressed focused question was: "What are the effects of curcumin-mediated antimicrobial therapy on the biofilm viability of Streptococcus mutans and Candida albicans in vitro models?" A literature search was conducted in the electronic databases Pubmed, Web of Science, Scopus, Cochrane Library and Bireme up to April 2019. In vitro studies evaluating the effect of curcumin-mediated antimicrobial photodynamic therapy on S. mutans and C. albicans biofilms were included.
RESULTS
From 95 citations, 11 full-text articles were screened and 6 studies were included in this review. Because of the heterogeneity observed in the studies selected, meta-analysis was not possible.
CONCLUSIONS
The in vitro studies indicate the potential use of curcumin-mediated aPDT to inactivate microorganisms; Streptococcus mutans and Candida albicans. This survey should be viewed as a starting point for further examinations using standardized parameters to enhance outcomes.
Topics: Biofilms; Candida albicans; Curcumin; Humans; In Vitro Techniques; Microbial Viability; Photochemotherapy; Photosensitizing Agents; Streptococcus mutans
PubMed: 31352059
DOI: 10.1016/j.pdpdt.2019.07.010 -
The European Respiratory Journal Sep 2019Pleural infection is a major cause of morbidity and mortality among adults. Identification of the offending organism is key to appropriate antimicrobial therapy. It is...
BACKGROUND AND OBJECTIVES
Pleural infection is a major cause of morbidity and mortality among adults. Identification of the offending organism is key to appropriate antimicrobial therapy. It is not known whether the microbiological pattern of pleural infection is variable temporally or geographically. This systematic review aimed to investigate available literature to understand the worldwide pattern of microbiology and the factors that might affect such pattern.
DATA SOURCES AND ELIGIBILITY CRITERIA
Ovid MEDLINE and Embase were searched between 2000 and 2018 for publications that reported on the microbiology of pleural infection in adults. Both observational and interventional studies were included. Studies were excluded if the main focus of the report was paediatric population, tuberculous empyema or post-operative empyema.
STUDY APPRAISAL AND SYNTHESIS METHODS
Studies of ≥20 patients with clear reporting of microbial isolates were included. The numbers of isolates of each specific organism/group were collated from the included studies. Besides the overall presentation of data, subgroup analyses by geographical distribution, infection setting (community hospital) and time of the report were performed.
RESULTS
From 20 980 reports returned by the initial search, 75 articles reporting on 10 241 patients were included in the data synthesis. The most common organism reported worldwide was . Geographically, pneumococci and viridans streptococci were the most commonly reported isolates from tropical and temperate regions, respectively. The microbiological pattern was considerably different between community- and hospital-acquired infections, where more Gram-negative and drug-resistant isolates were reported in the hospital-acquired infections. The main limitations of this systematic review were the heterogeneity in the method of reporting of certain bacteria and the predominance of reports from Europe and South East Asia.
CONCLUSIONS
In pleural infection, the geographical location and the setting of infection have considerable bearing on the expected causative organisms. This should be reflected in the choice of empirical antimicrobial treatment.
Topics: Acinetobacter; Adult; Aged; Anti-Bacterial Agents; Enterobacteriaceae; Global Health; Humans; Klebsiella; Middle Aged; Pleural Diseases; Pseudomonas; Risk; Staphylococcal Infections; Staphylococcus aureus; Streptococcus pneumoniae; Viridans Streptococci
PubMed: 31248959
DOI: 10.1183/13993003.00542-2019 -
Pediatric Dentistry Mar 2019The purpose of this study was to perform a systematic review to assess current evidence for association between various risk factors and the prevalence or incidence of... (Meta-Analysis)
Meta-Analysis
The purpose of this study was to perform a systematic review to assess current evidence for association between various risk factors and the prevalence or incidence of early childhood caries (ECC). Two reviewers searched various databases until January 2019. The Newcastle-Ottawa scale was used to perform risk of bias assessment. The included studies were categorized according to the World Bank classification. Data were summarized in a meta-analysis using fixed and random effects inverse-generic meta-analyses. A total of 7,034 records involving 89 studies that evaluated 1,352,097 individuals were included; 23 were high, 46 were moderate, and 20 were of low quality. A total of 123 risk factors were found. Meta-analysis revealed that the strongest risk factors found in the high-income countries were presence of dentinal caries (dmft greater than zero; odds ratio [OR] equals 4.21 [2.18 to 8.16]) and high levels of mutans streptococci (OR equals 3.83 [1.81 to 8.09]). In upper-middle-income countries, presence of enamel defects (OR equals 14.62 [6.10 to 35.03]) was found to be the strongest risk factor. The strongest risk factors associated with early childhood caries was the presence of enamel defects, presence of dentinal caries and high levels of mutans streptococci.
Topics: DMF Index; Dental Caries; Dental Enamel; Humans; Risk Factors; Streptococcus mutans
PubMed: 30992106
DOI: No ID Found -
World Neurosurgery May 2019Acupuncture is a common form of alternative medicine that is used for pain control among other modalities of treatment. It is a relatively safe procedure, but...
BACKGROUND
Acupuncture is a common form of alternative medicine that is used for pain control among other modalities of treatment. It is a relatively safe procedure, but complications, including those of infectious etiology, may still occur.
CASE DESCRIPTION
A 47-year-old immunosuppressed woman presented with fever, altered level of consciousness, dysphasia, and a left occipital subgaleal fluctuant mass after acupuncture for headaches in the same area. Imaging demonstrated subgaleal and epidural collection localized in the left occipital region. She underwent urgent surgical evacuation of both collections. Cultures from intraoperative specimens grew Streptococcus anginosus. The patient started targeted antibiotic treatment leading to complete recovery.
CONCLUSIONS
To our knowledge, this is the first report of intracranial abscess after acupuncture. Given the worldwide application of this alternative treatment, physicians, acupuncturists, and the general public should be aware of the possibility of this rare but serious complication.
Topics: Acupuncture Therapy; Epidural Abscess; Female; Humans; Middle Aged; Neuralgia; Occipital Lobe; Streptococcal Infections; Streptococcus anginosus
PubMed: 30743042
DOI: 10.1016/j.wneu.2019.01.189 -
Journal of Gynecology Obstetrics and... Apr 2019An abnormal vaginal microbiota composition has been shown to lead to pre-term births, miscarriage, and problems with conceiving. Studies have suggested that dysbiosis... (Meta-Analysis)
Meta-Analysis
An abnormal vaginal microbiota composition has been shown to lead to pre-term births, miscarriage, and problems with conceiving. Studies have suggested that dysbiosis reduces successful early pregnancy development during IVF. However, conflicting reports exist. This meta-analysis aims to answer the following question: what is the aggregated effect found by studies investigating the influence of the vaginal microbiota composition on early pregnancy rates after IVF treatment? A systematic review was performed using the Medline and EMBASE databases, using search terms for healthy vaginal microbiota, abnormal vaginal microbiota, fertility and pregnancy. The search resulted in six included articles. Of these, all six were used for further meta-analysis. The main outcome measures were the clinical pregnancy rate, determined through ultrasound proven fetal heartbeat and/or hCG results before 10 weeks gestation, in relation to the vaginal microbiota composition. We found a correlation between abnormal vaginal microbiota and lower rates of early pregnancy development after IVF treatment (OR = 0.70, 95% CI = 0.49 - 0.99). One study showed the reverse correlation. However, heterogeneity between study methodologies in various forms was found. In conclusion, women with an abnormal vaginal microbiota are roughly 1.4 times less likely to have a successful early pregnancy development after IVF treatment when compared to women with normal microbiota.
Topics: Dysbiosis; Embryo Transfer; Female; Fertility; Fertilization in Vitro; Humans; MEDLINE; Microbiota; Pregnancy; Pregnancy Outcome; Pregnancy Rate; Staphylococcus aureus; Treatment Outcome; Vagina; Viridans Streptococci
PubMed: 30685426
DOI: 10.1016/j.jogoh.2019.01.007