Application of quantitative light-induced fluorescence technology in early caries detection and resin infiltration treatment.

Objectives: The aim of this study is to explore the specific application scenarios of quantitative light-induced fluorescence (QLF) in the detection and treatment of early caries, so as to provide more evidence for the clinical application of QLF.

Methods: (1) The accuracy of QLF in detecting the lesion depth of early caries was evaluated by combining transverse microradiography (TMR) and spectrophotometer analysis (n=6). (2) Resin infiltration therapy was used as a representative method for the treatment of early caries to evaluate the ability of QLF in assessing the therapeutic effect on early caries (n=6).

Imbalance of oral microbiome homeostasis: the relationship between microbiota and the occurrence of dental caries.

Background: Streptococcus mutans is recognized as a key pathogen responsible for the development of dental caries. With the advancement of research on dental caries, the understanding of its pathogenic mechanism has gradually shifted from the theory of a single pathogenic bacterium to the theory of oral microecological imbalance. Acidogenic and aciduric microbial species are also recognized to participate in the initiation and progression of dental caries.

Roles of in human health: beyond dental caries.

() is the main pathogenic bacterium causing dental caries, and the modes in which its traits, such as acid production, acid tolerance, and adhesion that contribute to the dental caries process, has been clarified. However, a growing number of animal experiments and clinical revelations signify that these traits of are not restricted to the detriment of dental tissues. These traits can assist in evading the immune system within body fluids; they empower to adhere not merely to the surface of teeth but also to other tissues such as vascular endothelium; they can additionally trigger inflammatory reactions and inflict damage on various organs, thereby leading to the occurrence of systemic diseases.

A novel pH-responsive monomer inhibits a dual antifungal mode of action.

The scarcity of the antifungal drug arsenal highlights an urgent need to develop alternative treatments for candidiasis caused by (). As pH is closely associated with infection, it could be an essential target in a novel approach for designing antifungal therapy. In this study, a novel intelligent antifungal monomer, dodecylmethylaminoethyl methacrylate (DMAEM), with a pH-responsive tertiary amine group and a methacrylate-derived CC double bond group is developed.

Effects of Green Tea Extract Epigallocatechin-3-Gallate on Oral Diseases: A Narrative Review.

Objectives: Oral diseases are among the most prevalent diseases globally. Accumulating new evidence suggests considerable benefits of epigallocatechin-3-gallate (EGCG) for oral health. This review aims to explore the role and application of EGCG in main oral diseases.

wraps around and synergistically escapes from Neutrophil extracellular traps.

Background: NETs, a unique neutrophil immune mechanism, are vital in defending against microbial invasions. Understanding the mechanisms of co-infection by and , which often leads to higher mortality and poorer prognosis, is crucial for studying infection progression.

Methods: In our study, we established a mouse model of subcutaneous infection to characterize the inflammation induced by co-infection.

Heavy Ion Radiation Directly Induced the Shift of Oral Microbiota and Increased the Cariogenicity of .

Radiation caries is one of the most common complications of head and neck radiotherapy. A shift in the oral microbiota is the main factor of radiation caries. A new form of biosafe radiation, heavy ion radiation, is increasingly being applied in clinical treatment due to its superior depth-dose distribution and biological effects.

Roles of - interaction in early childhood caries: a literature review.

As one of the most common oral diseases in kids, early childhood caries affects the health of children throughout the world. Clinical investigations show the copresence of and in ECC lesions, and mechanistic studies reveal co-existence of and affects both of their cariogenicity. Clearly a comprehensive understanding of the interkingdom interaction between these two microorganisms has important implications for ECC treatment and prevention.

pH-responsive DMAEM Monomer for dental caries inhibition.

Previous research indicated that there is an aggregate of microorganism in oral cavity which takes part in promoting the occurrence of dental caries, but few studies on anticaries materials for these 'core microbiome' were developed. And We've found that DMAEM monomer has an obvious inhibitory effect on the growth of Streptococcus mutans and saliva biofilm, but the effect of that on the "core microbiome" of caries need further research. Thus, the objectives of this study were to explore the effect of DMAEM monomer on the core microbiota of dental caries, and to further study its anticaries effect.

[Research Progress on the Interaction Between Microorganisms and Macrophages and Their Role in the Mediation of the Onset and Development of Oral Cancer].

Oral squamous cell carcinoma is the sixth most common malignant tumor in the world, and the clinical treatment effect is not satisfactory. Because of the special nature of its location, oral cancer is inextricably linked with a wide variety of microorganisms, and its pathogenesis and development are also extremely susceptible to microbial regulation. In addition, the mediating role of the immune system is also indispensable to the course of tumor pathogenesis and development, especially tumor-associated macrophages, which amplify the regulatory role of microorganisms, and in turn regulate the microbial population components--two complementary effects that jointly exacerbate oral cancer.

The human oral - nasopharynx microbiome as a risk screening tool for nasopharyngeal carcinoma.

Nasopharyngeal carcinoma (NPC) is a common head and neck cancer with a poor prognosis. There is an urgent need to develop a simple and convenient screening tool for early detection and risk screening of NPC. 139 microbial samples were collected from 40 healthy people and 39 patients with nasopharyngeal biopsy.

The Preventive Effect of A Magnetic Nanoparticle-Modified Root Canal Sealer on Persistent Apical Periodontitis.

Persistent apical periodontitis is a critical challenge for endodontists. Developing root canal filling materials with continuous antibacterial effects and tightly sealed root canals are essential strategies to avoid the failure of root canal therapy and prevent persistent apical periodontitis. We modified the EndoREZ root canal sealer with the antibacterial material dimethylaminododecyl methacrylate (DMADDM) and magnetic nanoparticles (MNPs).

Culture Supernatant of Promotes the Hyphal Morphogenesis and Biofilm Formation of .

(1) Background: and are often isolated from infected root canals. The interaction between these two species is not clear enough. Therefore, the objective of this study was to investigate the effect of on the biofilm formation, hyphal morphogenesis and virulence gene expression of .

The Oral Complications of COVID-19.

COVID-19 is a novel coronavirus infectious disease associated with the severe acute respiratory syndrome. More and more patients are being cured due to the development of clinical guidelines for COVID-19 pneumonia diagnosis, treatment, and vaccines. However, the long-term impact of COVID-19 on patients after recovery is unclear.

[Innovative Instructional Reform and Practice of -A Course in Undergraduate Stomatology Curriculum].

is a vital component of the basic science of stomatology and an important compulsory course for undergraduate students of stomatology, focusing on the oral microbiology and microecology, the pathogenesis of oral infectious diseases, and the relationship between oral microbes and human health. Our faculty team have made reforms of the theory and laboratory teaching of the course . We have introduced in the classroom the concept of the full involvement of everyone, the through-course approach and all-round education-and offered inquiry-based instruction through a combination of extracting the core information from every chapter, using the core information as the foundation, integrating the core information with clinical problems, and using experiment operation to foster in the students an attitude of solving clinical problems through research.

A Qualitative and Comprehensive Analysis of Caries Susceptibility for Dental Fluorosis Patients.

Dental fluorosis (DF) is an endemic disease caused by excessive fluoride exposure during childhood. Previous studies mainly focused on the acid resistance of fluorotic enamel and failed to reach a consensus on the topic of the caries susceptibility of DF patients. In this review, we discuss the role of DF classification in assessing this susceptibility and follow the "four factors theory" in weighing the pros and cons of DF classification in terms of host factor (dental enamel and saliva), food factor, bacteria factor, and DF treatment factor.

The Clinical Potential of Oral Microbiota as a Screening Tool for Oral Squamous Cell Carcinomas.

Introduction: The oral squamous cell carcinoma (OSCC) is detrimental to patients' physical and mental health. The prognosis of OSCC depends on the early diagnosis of OSCC in large populations.

Objectives: Here, the present study aimed to develop an early diagnostic model based on the relationship between OSCC and oral microbiota.

Effects of Cold-Light Bleaching on Enamel Surface and Adhesion of .

Tooth bleaching is becoming increasingly popular among patients with tooth staining, but the safety of bleaching agents on tooth structure has been questioned. Primarily thriving on the biofilm formation on enamel surface, has been recognized as a major cariogenic bacterial species. The present study is aimed at investigating how cold-light bleaching would change enamel roughness and adhesion of .

d-Alanine metabolic pathway, a potential target for antibacterial drug designing in Enterococcus faecalis.

Enterococcus faecalis (E. faecalis) is associated with persistent root canal infection because of its biofilm and various virulence factors. However, E.

Effect of Antibacterial Root Canal Sealer on Persistent Apical Periodontitis.

The infection of and its interacting microorganisms in the root canal could cause persistent apical periodontitis (AP). Antibacterial root canal sealer has favorable prospects to inhibit biofilms. The purpose of this study was to investigated the antibacterial effect of root canal sealer containing dimethylaminododecyl methacrylate (DMADDM) on persistent AP in beagle dogs for the first time.

Novel dental implant modifications with two-staged double benefits for preventing infection and promoting osseointegration and .

Peri-implantitis are a major problem causing implant failure these days. Accordingly, anti-infection during the early stage and subsequent promotion of osseointegration are two main key factors to solve this issue. Micro-arc oxidation (MAO) treatment is a way to form an oxidation film on the surface of metallic materials.

The Inhibitory Effects of Ficin on Biofilm Formation.

To investigate the effects of ficin on biofilm formation of conditionally cariogenic (). Biomass and metabolic activity of biofilm were assessed using crystal violet assay, colony-forming unit (CFU) counting, and MTT assay. Extracellular polysaccharide (EPS) synthesis was displayed by SEM imaging, bacteria/EPS staining, and anthrone method while acid production was revealed by lactic acid assay.

Effect of LongZhang Gargle on Dual-Species Biofilm of Candida albicans and Streptococcus mutans.

Bioactive natural products have become a hot spot for oral disease treatments. At the present study, LongZhang Gargle was investigated for its effects on single-species biofilms of and dual-species biofilms of and . Two different models of single and dual-species biofilms were grown in YNBB medium under appropriate conditions.

The Role of Neutrophil Extracellular Traps in Periodontitis.

Periodontitis is a chronic, destructive disease of periodontal tissues caused by multifaceted, dynamic interactions. Periodontal bacteria and host immunity jointly contribute to the pathological processes of the disease. The dysbiotic microbial communities elicit an excessive immune response, mainly by polymorphonuclear neutrophils (PMNs).