keyword
https://read.qxmd.com/read/38496819/antimicrobial-and-optical-properties-of-a-new-biogenic-silica-coated-silver-nanoparticles-incorporated-into-experimental-resin
#1
JOURNAL ARTICLE
Marina-Mariante Viana, Thaís-Rodrigues Souza, Bruno Bueno-Silva, Flávia Gonçalves, Roberto-Ruggiero Braga, Fábio-Dupart Nascimento, Rodrigo-Mendes Pereira, Bruno-Lemos Batista, Amedea-Barozzi Seabra, Marcela-Charantola Rodrigues
BACKGROUND: Evaluate the effects of incorporating silica-coated silver nanoparticles (Ag@SiO2 NPs) into odontological clinic resin materials. MATERIAL AND METHODS: Silver nanoparticles coated with silicon dioxide were added to the experimental resin matrix at 1, 3, and 5wt%. Degree of conversion (DC), optical properties (total transmittance and color change), and microstructural analysis were evaluated. Materials were tested for silver ion release, cytotoxicity in dental pulp fibroblasts, Streptococcus mutans biofilm growth by Colony-Forming Unit (CFU) and confocal laser scanning microscopy (CLSM)...
February 2024: Journal of Clinical and Experimental Dentistry
https://read.qxmd.com/read/38487116/antibacterial-activity-and-shear-bond-strength-of-orthodontic-adhesive-containing-various-sizes-of-chitosan-nanoparticles-an-in-vitro-study
#2
JOURNAL ARTICLE
Reem Almeshal, Sarah Pagni, Ala Ali, Driss Zoukhri
INTRODUCTION: White spot lesions are common after orthodontic treatment. Chitosan nanoparticles (CS-NPs) have emerged as promising antibacterial agents that inhibit the growth of Streptococcus mutans . The aim of the study was to investigate the nano-effect of adhesives containing CS-NPs on S. mutans  and their effects on shear bond strength. MATERIALS AND METHODS: The inhibitory effects of two sizes of CS-NPs were assessed using the disc agar diffusion method...
February 2024: Curēus
https://read.qxmd.com/read/38487111/biosynthesis-of-zinc-nanoparticles-from-actinobacterium-streptomyces-species-and-their-biological-potential
#3
JOURNAL ARTICLE
Aravind Sivakumar, Vasugi Suresh, Sathya Sethuraman, Pitchiah Sivaperumal
BACKGROUND: In today's world, antibiotic-resistant microorganisms are a major concern. There is solid evidence that metal nanoparticles (NPs) tend to have antimicrobial properties. The most effective substitute for antibiotic resistance is the incorporation of metal NPs. The antibacterial properties of NPs are currently being explored and shown to be successful. Zinc (Zn) NPs that are biosynthesized from marine Actinobacterium proved to be more biocompatible, bioactive, and affordable...
February 2024: Curēus
https://read.qxmd.com/read/38481926/evaluation-of-antioxidant-anti-inflammatory-and-antimicrobial-activities-of-raspberry-fruit-extract-an-in-vitro-study
#4
JOURNAL ARTICLE
R Gomathi, T N Umamaheswari, Roland Prethipa
Introduction Rubus idaeus (R. idaeus) is an edible fruit that contains numerous significant bioactive compounds that hold important biological properties and are categorized as nutraceuticals owing to the health benefits it imparts including decreasing the risk of chronic diseases like diabetes mellitus, cancer, heart disease, and many other diseases. The objective of the present research was to explore the antimicrobial, antioxidant, and anti-inflammatory characteristics of the aqueous raspberry extract through in vitro assays...
February 2024: Curēus
https://read.qxmd.com/read/38475535/antimicrobial-activity-on-streptococcus-mutans-and-enterococcus-faecalis-of-cyperus-articulatus-ethanolic-extracts
#5
JOURNAL ARTICLE
Daniela Vieira de Castro Macambira, José Sousa de Almeida Júnior, Claudia Fernandes de Magalhães Silveira, Sandra Layse Ferreira Sarrazin, Tânia Mara Pires Moraes, Bruno Alexandre da Silva, Antonio Humberto Hamad Minervino, Waldiney Pires Moraes, Lauro Euclides Soares Barata
Oral diseases are one of the biggest public health problems worldwide, caused by opportunistic pathogens such as Streptococcus mutans and Enterococcus faecalis . Cyperus articulatus (priprioca) is a plant conventionally used in traditional medicine in the Amazon region. However, little is known about the possible dentistry-related uses of extracts from the rhizomes and solid waste generated by the extraction of essential oils from this vegetable. This study aimed to investigate the chemical composition of volatile compounds and antimicrobial activity through the Minimum Inhibitory Concentration test (MIC and assessment of the toxicity by Hens Egg Test-Chorion Allantoic Membrane (HET-CAM) of the ethanolic extracts from Cyperus articulatus intact rhizomes and solid waste...
February 29, 2024: Plants (Basel, Switzerland)
https://read.qxmd.com/read/38475272/exploring-the-effect-of-cetylpyridinium-chloride-addition-on-the-antibacterial-activity-and-surface-hardness-of-resin-based-dental-composites
#6
JOURNAL ARTICLE
Sara Khan, Faiza Amin, Rafat Amin, Naresh Kumar
The aim of this study was to evaluate the effect of cetylpyridinium chloride (CPC) addition on the antibacterial and surface hardness characteristics of two commercial resin-based dental composites (RBDCs). A total of two hundred and seventy ( n = 270) specimens from Filtek Z250 Universal and Filtek Z350 XT flowable RBDCs were fabricated with the addition of CPC at 2 %wt and 4 %wt concentrations to assess their antibacterial activity using the agar diffusion test and direct contact inhibition test, and their surface hardness using the Vickers microhardness test after 1 day, 30 days, and 90 days of aging...
February 21, 2024: Polymers
https://read.qxmd.com/read/38474510/antimicrobial-activity-of-syzygium-aromaticum-essential-oil-in-human-health-treatment
#7
REVIEW
Valentina Maggini, Giulia Semenzato, Eugenia Gallo, Alessia Nunziata, Renato Fani, Fabio Firenzuoli
The use of natural compounds to prevent and treat infective diseases is increasing its importance, especially in the case of multidrug-resistant (MDR) microorganisms-mediated infections. The drug resistance phenomenon is today a global problem, so it is important to have available substances able to counteract MDR infections. Syzygium aromaticum (L.) Merr. & L.M. Perry (commonly called clove) is a spice characterized by several biological properties. Clove essential oil (EO) consists of numerous active molecules, being eugenol as the principal component; however, other compounds that synergize with each other are responsible for the biological properties of the EO...
February 25, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38467637/efficacy-of-biomin-f-and-novamin-toothpastes-against-streptococcus-mutans-an-in-vitro-study
#8
JOURNAL ARTICLE
Haya Doura Alomari, Yasser Alsayed Tolibah, Chaza Kouchaji
OBJECTIVE: This in vitro study was accomplished to demonstrate the antibacterial efficacy of BioMin F and NovaMin toothpastes against the recently-isolated Streptococcus Mutans in comparison with a commonly used fluoride toothpaste. MATERIALS AND METHODS: Dental plaque collection method was adopted to isolate streptococcus mutans in children with dental caries. Then an ideal Streptococcus Mutans colony was incubated in 20 Petri dishes that contained Mueller-Hinton medium...
March 11, 2024: BDJ Open
https://read.qxmd.com/read/38465428/marine-microalgae-schizochytrium-sp-s31-potential-source-for-new-antimicrobial-and-antibiofilm-agent
#9
JOURNAL ARTICLE
Doaa Abdullah Hammadi Al-Ogaidi, Sevinç Karaçam, Rafig Gurbanov, Nurcan Vardar-Yel
BACKGROUND: The rise of antibiotic-resistant bacteria necessitates the discovery of new, safe, and bioactive antimicrobial compounds. The antibacterial and antibiofilm activity of microalgae makes them a potential candidate for developing natural antibiotics to limit microbial infection in various fields. OBJECTIVE: This study aimed to analyze the antibacterial effect of the methanolic extract of Schizochytrium sp. S31 microalgae by broth microdilution and spot plate assays...
March 7, 2024: Current Pharmaceutical Biotechnology
https://read.qxmd.com/read/38465103/analysis-of-spatial-and-biochemical-characteristics-of-in-vitro-cariogenic-biofilms
#10
JOURNAL ARTICLE
Poojitha Kumaran, Ramya Ramadoss, Sandhya Sundar, Suganya Panneer Selvam, Bargavi P, Pratibha Ramani
Background Dental caries is the most common bacterial disease of calcified tissues of teeth. Cariogenic biofilms formed on the tooth surface secrete organic acids and thus result in demineralization. Delving into the depth of biofilms is crucial to understand the pathogenic mechanisms and design improved therapeutic approaches. The aim of the study is to analyze the spatial and biochemical characteristics of cariogenic biofilms. Materials and methods Pulp tissue samples sourced from freshly extracted third molars were incubated with oral cariogenic bacteria namely Streptococcus mutans , Staphylococcus aureus , Escherichia coli , Entamoeba faecalis , and Candida albicans to form the biofilm...
February 2024: Curēus
https://read.qxmd.com/read/38465060/biosynthesis-of-silver-nanoparticles-from-marine-actinobacterium-micromonospora-sp-and-their-bioactive-potential
#11
JOURNAL ARTICLE
Keshav Rajesh, Sivaperumal Pitchiah, Kamala Kannan, Vasugi Suresh
Background The biosynthesis of nanoparticles represents a rapid, environmentally friendly, cost-effective, and straightforward technology. This approach allows for the production of nanoparticles with a wide range of chemical compositions, sizes, shapes, high uniformity, and scalability. One of the principal advantages of biogenic nanoparticles is their water solubility and compatibility with biological systems. Biologically synthesized nanoparticles have demonstrated superior efficiency compared to conventionally synthesized particles...
February 2024: Curēus
https://read.qxmd.com/read/38462859/-em-allium-sativum-em-oil-as-an-alternative-non-vital-pulpotomy-medicament-in-primary-teeth-a-randomised-controlled-trial
#12
JOURNAL ARTICLE
Mashal Mazhar, Shazia Naz, Ambreen Zahra, Nazia Bashir, Muhammad Asdaq Hussain
OBJECTIVE: To use Allium sativum oil as non-vital pulpotomy medicament in primary teeth by evaluating its antibacterial effect (Colony-Forming Units/ml- CFU/ml), against Streptococcus mutans and Lactobacillus acidophilus. STUDY DESIGN: A double-blinded, randomised controlled trial. Place and Duration of the Study: Paediatric Dentistry Department, de' Montmorency College of Dentistry, Lahore in collaboration with the Microbiology Department, Lahore General Hospital, from October 2022 to February 2023...
March 2024: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://read.qxmd.com/read/38456674/plasmalogen-a-glycerophospholipid-crucial-for-streptococcus-mutans-acid-tolerance-and-colonization
#13
JOURNAL ARTICLE
Rong Mu, Stephanie Momeni, Madeline Krieger, Baotong Xie, Xixi Cao, Justin Merritt, Hui Wu
UNLABELLED: Plasmalogen is a specific glycerophospholipid present in both animal and bacterial organisms. It plays a crucial function in eukaryotic cellular processes and is closely related to several human diseases, including neurological disorders and cancers. Nonetheless, the precise biological role of plasmalogen in bacteria is not well understood. In this study, we identified SMU_438c as the enzyme responsible for plasmalogen production in Streptococcus mutans under anaerobic conditions...
March 8, 2024: Applied and Environmental Microbiology
https://read.qxmd.com/read/38456080/oral-streptococci-modulators-of-health-and-disease
#14
REVIEW
Susanne Bloch, Fiona F Hager-Mair, Oleh Andrukhov, Christina Schäffer
Streptococci are primary colonizers of the oral cavity where they are ubiquitously present and an integral part of the commensal oral biofilm microflora. The role oral streptococci play in the interaction with the host is ambivalent. On the one hand, they function as gatekeepers of homeostasis and are a prerequisite for the maintenance of oral health - they shape the oral microbiota, modulate the immune system to enable bacterial survival, and antagonize pathogenic species. On the other hand, also recognized pathogens, such as oral Streptococcus mutans and Streptococcus sobrinus , which trigger the onset of dental caries belong to the genus Streptococcus ...
2024: Frontiers in Cellular and Infection Microbiology
https://read.qxmd.com/read/38455815/in-silico-molecular-docking-of-phytochemicals-of-murraya-koenigii-against-streptococcus-mutans
#15
JOURNAL ARTICLE
Kancharla Uma Maheswari, Sathish Sankar
Background The curry leaf tree, Murraya koenigii , is a tropical to subtropical tree in the family Rutaceae that is native to Asia. The plant parts are shown to have potential antimicrobial, antioxidant, antifungal, antidiarrheal, antidiabetic, anticancer, and anti-inflammatory properties. Streptococcus mutans is a facultative anaerobic, Gram-positive cocci, a common inhabitant of the human oral cavity that forms biofilms, contributing to dental caries. Aim The study aimed to analyze the inhibitory potential of phytocompounds in M...
February 2024: Curēus
https://read.qxmd.com/read/38454808/chemical-composition-antifungal-antibiofilm-and-molecular-docking-studies-of-syzygium-dyerianum-essential-oil
#16
JOURNAL ARTICLE
Faezatul Alwani Mohd Rahim, Wan Mohd Nuzul Hakimi Wan Salleh, Mohd Hafiz Arzmi, Abubakar Siddiq Salihu
The current study describes the chemical composition, antifungal, antibiofilm, antibacterial and molecular docking studies of Syzygium dyerianum growing in Malaysia. The essential oil was obtained through hydrodistillation and characterized using gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS). The antifungal and antibacterial activities were developed using the broth microdilution assay, whereas the effect on the microbial biofilms was determined using a semi-quantitative static biofilm assay...
March 11, 2024: Zeitschrift Für Naturforschung. C, A Journal of Biosciences
https://read.qxmd.com/read/38454402/periodontal-ligament-stem-cell-derived-exosome-loaded-emodin-mediated-antimicrobial-photodynamic-therapy-against-cariogenic-bacteria
#17
JOURNAL ARTICLE
Maryam Pourhajibagher, Abbas Bahador
BACKGROUND: This study was conducted to investigate the efficiency of periodontal ligament (PDL) stem cell-derived exosome-loaded Emodin (Emo@PDL-Exo) in antimicrobial photodynamic therapy (aPDT) on Streptococcus mutans and Lactobacillus acidophilus as the cariogenic bacteria. MATERIALS AND METHODS: After isolating and characterizing PDL-Exo, the study proceeded to prepare and verify the presence of Emo@PDL-Exo. The antimicrobial effect, anti-biofilm activity, and anti-metabolic potency of Emo, PDL-Exo, and Emo@PDL-Exo were then evaluated with and without irradiation of blue laser at a wavelength of 405 ± 10 nm with an output intensity of 150 mW/cm2 for a duration of 60 s...
March 7, 2024: BMC Oral Health
https://read.qxmd.com/read/38453554/effects-of-hydroxyapatite-containing-toothpastes-on-some-caries-related-variables-a-randomised-clinical-trial
#18
JOURNAL ARTICLE
Guglielmo Campus, Fabio Cocco, Richard Johannes Wierichs, Thomas Gerhard Wolf, Claudia Salerno, Antonella Arghittu, Marco Dettori, Maria Grazia Cagetti
OBJECTIVES: This randomised clinical trial was designed and carried out with the aim to evaluate the capacity of fluoride-substituted hydroxyapatite (HAF) toothpaste to modulate oral microflora composition and biofilm acidogenicity in schoolchildren. METHODS: In all, 610 children (4 to 5 and 6 to 7 years) were enrolled. Four toothpastes were randomly administered during 24 months: 2 contained fluoride-substituted hydroxyapatite (HAF1000 and HAF1450 ; 1000 and 1450 ppmF) and magnesium-, strontium-, and carbonate-substituted hydroxyapatite in a chitosan matrix, and 2 were monofluorophosphate fluoridated toothpastes (F1000 and F1450 ; 1000 and 1450 ppmF)...
March 6, 2024: International Dental Journal
https://read.qxmd.com/read/38450244/leaf-extracts-of-moringa-oleifera-cultivated-in-baghdad-characterization-and-antimicrobial-potential-against-endodontic-pathogens
#19
JOURNAL ARTICLE
Nada E Shafiq, Anas F Mahdee, Zainab Y Mohammed Hasan
The use of medicinal plant preparations to clean and disinfect root canal infection is gaining popularity. The aim of this study was to evaluate the bioactive composition of leaf extracts of Moringa oleifera plants cultivated in Iraq (specifically Baghdad) and their antimicrobial activity against selected root canal pathogens for potential application in endodontic treatment. Materials and Methods . Moringa leaf extracts were prepared either through cold maceration or warm digestion techniques to perform an ethanolic or aqueous extraction, respectively...
2024: TheScientificWorldJournal
https://read.qxmd.com/read/38449492/prevalence-of-salivary-microbial-load-and-lactic-acid-presence-in-diabetic-and-non-diabetic-individuals-with-different-dental-caries-stages
#20
JOURNAL ARTICLE
Monika Mohanty, Shashirekha Govind, Shakti Rath
OBJECTIVES: This study aims to correlate caries-causing microorganism load, lactic acid estimation, and blood groups to high caries risk in diabetic and non-diabetic individuals and low caries risk in healthy individuals. MATERIALS AND METHODS: This study includes 30 participants divided into 3 groups: Group A, High-risk caries diabetic individuals; Group B, High-risk caries non-diabetic individuals; and Group C, Low-risk caries individuals. The medical condition, oral hygiene, and caries risk assessment (American Dental Association classification and International Caries Detection and Assessment System scoring) were documented...
February 2024: Restorative Dentistry & Endodontics
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