Link between caries,periodontitis,and pregnancy:The role of personalized oral hygiene

Optimal health during pregnancy is crucial for ensuring the well-being of the mother and the developing fetus.This article is focused on the impact of oral health and the role of personalized oral hygiene management in addressing prevalent dental issues among pregnant women,with particular emphasis on periodontal disease and dental caries.Despite the high prevalence of these dental problems and their association with obstetric complications such as pre-term birth and low birth weight,many pregnant women do not receive adequate dental care.This gap in care is often due to misconceptions about the safety of dental treat-ments during pregnancy and lack of awareness on the part of healthcare profes-sionals.Appreciations of the impacts of oral health and personalization of oral hygiene strategies such as tailored education and support,have proven effective in improving oral health in this population.Significant reductions in the incidence of caries and periodontal disease may be achieved by adapting care to the specific needs of each patient,thereby enhancing maternal and fetal health outcomes.Integration of personalized oral hygiene management into maternal health pro-grams and enhancement of ongoing education for pregnant women and healthcare professionals are essential steps in the reduction of pregnancy-related risks and improvement of maternal and neonatal well-being.Core Tip:In this article,we reviewed a recent study on the effects of personalized oral hygiene management on the oral health of pregnant women,as discussed in the article by Men et al.The study demonstrated that personalized oral hygiene interventions significantly improved oral health outcomes during pregnancy by reducing the prevalence of dental caries and periodontal disease.We emphasized the importance of individualized oral care programs that integrate education and tailored support,and we highlighted their significance in enhancing maternal and fetal health.This approach underscores the need for incorporating personalized oral hygiene management into routine prenatal care in order to optimize health outcomes.CONCLUSION This article emphasizes the critical role of personalized oral hygiene management in improving oral health during pregnancy.By tailoring oral care strategies to individual needs,significant improvements in dental health may be achieved,as evidenced by the reduced CAT scores observed in the experimental group in the study by Men et al[25].This personalized approach not only addresses common oral issues such as dental caries and periodontal disease but also underscores the broader implications for maternal and fetal health.Despite the positive results,there remains a gap in consistency in the application of oral health practices during pregnancy,partly due to misconceptions and lack of awareness among patients and healthcare providers.Future research should aim at validating these findings across diverse populations,investigating the impact of oral hygiene interventions at various stages of pregnancy,and evaluating their long-term effects on maternal and fetal health.Integrating personalized oral hygiene management into maternal health programs and promoting continuous education for pregnant women and healthcare professionals are essential steps toward enhancing overall health outcomes.By proactively managing oral health,the risks associated with pregnancy may be reduced while improving maternal and neonatal well-being.

Unraveling brain aging through the lens of oral microbiota

The oral cavity is a complex physiological community encompassing a wide range of microorganisms.Dysbiosis of oral microbiota can lead to various oral infectious diseases,such as periodontitis and tooth decay,and even affect systemic health,including brain aging and neurodegenerative diseases.Recent studies have highlighted how oral microbes might be involved in brain aging and neurodegeneration,indicating potential avenues for intervention strategies.In this review,we summarize clinical evidence demonstrating a link between oral microbes/oral infectious diseases and brain aging/neurodegenerative diseases,and dissect potential mechanisms by which oral microbes contribute to brain aging and neurodegeneration.We also highlight advances in therapeutic development grounded in the realm of oral microbes,with the goal of advancing brain health and promoting healthy aging.

Tongluo Jiedu as an adjuvant therapy for oral cancer

Oral cancer is one of the malignant neoplasms that present major global health challenge.It is the sixth most prevalent type of cancer in the world,with a high incidence and mortality rate.This letter is a review of the study by Yin et al which was published in the World Journal of Clinical Cases(2024).The study evaluated the effect of Tongluo Jiedu as an adjuvant treatment for oral cancer.Over the years,there has been a continuous search for effective and less invasive treatments for oral cancer.This article emphasizes and discusses various therapeutic options currently available,and it highlights that early intervention and multidisciplinary management are crucial for improving outcomes.Traditional Chinese medicine,particularly Tongluo Jiedu,presents potential complementary approach to co-nventional oral cancer therapies.Future research on Tongluo Jiedu should be focused on validation of its efficacy and safety through large,well-designed clinical trials,as well as better understanding of the molecular mechanisms in-volved,and optimization of therapeutic combinations.Additionally,continuous education of health professionals is key to the effective and safe integration of this traditional medicine into clinical practice.Continuous research is essential for optimization of therapeutic strategies and for addressing the challenges presented by this neoplasm.

Immunohistochemical expression of matrix metalloproteinase-9 and 13 in oral squamous cell carcinoma and their role in predicting lymph node metastasis

BACKGROUND One of the main characteristics of oral squamous cell carcinoma(OSCC)is that it metastasizes to cervical lymph nodes frequently with a high degree of local invasiveness.A primary feature of malignant tumors is their penetration of neighboring tissues,such as lymphatic and blood arteries,due to the tumor cells'capacity to break down the extracellular matrix(ECM).Matrix metalloproteinases(MMPs)constitute a family of proteolytic enzymes that facilitate tissue remodeling and the degradation of the ECM.MMP-9 and MMP-13 belong to the group of extracellular matrix degrading enzymes and their expression has been studied in OSCC because of their specific functions.MMP-13,a collagenase family member,is thought to play an essential role in the MMP activation cascade by breaking down the fibrillar collagens,whereas MMP-9 is thought to accelerate the growth of tumors.Elevated MMP-13 expression has been associated with tumor behavior and patient prognosis in a number of malignant cases.AIM To assess the immunohistochemical expression of MMP-9 and MMP-13 in OSCC.METHODS A total of 40 cases with histologically confirmed OSCC by incisional biopsy were included in this cross-sectional retrospective study.The protocols for both MMP-9 and MMP-13 immunohistochemical staining were performed according to the manufacturer’s recommendations along with the normal gingival epithelium as a positive control.All the observations were recorded and Pearson’sχ²test with Fisher exact test was used for statistical analysis.RESULTS Our study showed no significant correlation between MMP-9 and MMP-13 staining intensity and tumor size.The majority of the patients were in advanced TNM stages(III and IV),and showed intense expression of MMP-9 and MMP-13.CONCLUSION The present study suggests that both MMP-9 and MMP-13 play an important and independent role in OSCC progression and invasiveness.Intense expression of MMP-9 and MMP-13,irrespective of histological grade of OSCC,correlates well with TNM stage.Consequently,it is evident that MMP-9 and MMP-13 are important for the invasiveness and progression of tumors.The findings may facilitate the development of new approaches for evaluating lymph node metastases and interventional therapy techniques,hence enhancing the prognosis of patients diagnosed with OSCC.

Development and application prospect of stem cell combined with 3D printing technology for oral disease

With organ transplantation facing many dilemmas,tissue and organ regeneration as an alternative has bright prospects.In regenerative medicine,Three-dimensional(3D)printing technology and stem cells has been widely applied to the treatment of diseases related to tissue or organ replacement in dentistry,respectively.However,there are very few studies on the combination of the two,and even fewer clinical studies have been reported in dentistry.In this review,the current oral tissue engineering in vivo and in vitro based on 3D printing and stem cell technology will be summarized,and the discussion on the development prospects of this research direction will be given.Besides,the working principles and advantages&disadvantages of several types of 3D printers,as well as the mechanism of stem cells in tissue engineering will be elucidated.This review provides clinicians and researchers with the current state of research and trends in the combination of stem cells and 3D printing technology to treat oral-related diseases.In the future,3D bioprinters are poised for ongoing innovation with the advancement of relevant technologies,catalyzing an increase in clinical studies focused on treating oral diseases using stem cells and 3D scaffolds.Consequently,these developments will further advance the field of oral tissue engineering.

Reflux after peroral endoscopic myotomy:The dilemma and the options

Per oral endoscopic myotomy(POEM)is rapidly emerging as the treatment of choice for achalasia cardia,but its success is marred by problematic reflux.Although symptomatic reflux rates are low and often comparable to that after laparoscopic Hellers myotomy(LHM),a high incidence of pathologic reflux has been noted after POEM.This poses a dilemma as to what is true reflux,and in determining the indications and optimal endpoints for managing post-POEM reflux.The two pertinent reasons for the difference in reflux rates between LHM and POEM are the variation in length and location of myotomy and the absence of an anti-reflux procedure in POEM.Proton pump inhibitor remains the most sought-after treatment of POEM derived reflux.Nevertheless,modifications in the procedural technique of POEM and the addition of endoscopic fundoplication can probably emerge as a game changer.This article briefly reviews the incidence,causes,controversies,predictive factors,and management strategies related to post-POEM reflux.

Relationship between HBV genotypes and anti-viral therapeutic efficacy of interferon-alpha

BACKGROUND: Much evidence demonstrates that the genotypes of hepatitis B virus (HBV) present differences in pathogenicity and outcomes owing to differences in genetic structure. This study aimed to investigate the influences of HBV genotypes on the anti-viral therapeutic efficacy of interferon-alpha (IFN-alpha) in chronic hepatitis B patients, and to determine the relationship between HBV genotypes and levels of viral replication or gene variations. METHODS: The chronic hepatitis B patients who were treated with IFN-alpha were selected randomly. Anti-viral therapeutic efficacy was monitored in these patients. The HBV genotypes were detected by PCR microplate hybridization ELISA. The levels of serum HBV-DNA were determined by fluorescence quantitative PCR. HBV gene variation at pre-C and basic core promoter (BCP) regions were assayed by gene chip technology. RESULTS: Genotypes B and C were predominant in 94 chronic hepatitis B patients. A, E and F genotypes were not found in these patients. The HBV-DNA levels of genotype C and mixed genotypes were significantly higher than those of genotype B. The response to IFN-alpha in patients with genotype B was markedly better than in those with genotypes C and D, and the complete response to IFN-alpha was only observed in genotype B. The response to IFN-alpha in patients with mixed genotypes was the least sensitive. The negative transition of HBeAg was correlated with variations in the HBV pre-C and BCP regions in patients with partial or no response to IFN-alpha. The variation rates of HBV pre-C and BCP regions were clearly higher in genotype C than in genotype B. CONCLUSIONS: The results suggest that HBV genotype is correlated with the serum levels of HBV-DNA, HBV gene variations and therapeutic efficacy of IFN-alpha. The regular detection of HBV genotypes in the clinic will be of benefit for disease prognosis and planning of anti-viral therapeutic strategies.

Era of direct acting anti-viral agents for the treatment of hepatitis C

Hepatitis C infection is universal and the most common indication of liver transplantation in the United States. The period of less effective interferon therapy with intolerable side effects has gone. Now we have stepped into the era of direct acting anti-viral agents(DAAs) against hepatitis C virus. Treatment of hepatitis C is now extremely effective, tolerable and requires a short duration of intake of oral agents. Less monitoring is required with the current therapy and drug-drug interactions are less than the previous regimen. The current treatment options of chronic hepatitis C with various DAAs are discussed in this article.

Investigation on taste characteristics and sensory perception of soft-boiled chicken during oral processing based on electronic tongue and electronic nose

The sensory perception of food is a dynamic process,which is closely related to the release of flavor substances during oral processing.It’s not only affected by the food material,but also subjected to the individual oral environment.To explore the oral processing characteristics of soft-boiled chicken,the sensory properties,texture,particle size,viscosity,characteristic values of electronic nose and tongue of different chicken samples were investigated.The correlation analysis showed that the physical characteristics especially the cohesiveness,springiness,resilience of the sample determined oral processing behavior.The addition of chicken skin played a role in lubrication during oral processing.The particle size of the bolus was heightened at the early stage,and the fluidity was enhanced in the end,which reduced the chewing time to the swallowing point and raised the aromatic compounds signal of electronic nose.But the effect of chicken skin on chicken thigh with relatively high fat content,was opposite in electronic nose,which had a certain masking effect on the perception of umami and sweet taste.In conclusion,fat played a critical role in chicken oral processing and chicken thigh had obvious advantages in comprehensive evaluation of soft-boiled chicken,which was more popular among people.

Anti-viral Effect of Caulis Tripterygii Wilfordii

There have appeared more and more antibiotics to antagonize against causative organism, but in comparison few antivirals have. Hence, many viral diseases remain refractory and fatal due to lack of effective medicine.Caulis Tripterygii wilfordii (TW) is a specific and potent Chinese medicine, and its effect in treating various intractable diseases, such as systemic lupus erythematosus, dermatomyositis, scleroderma, psoriasis and eczema has been confirmed by many medical researches. Pharmacological researches also proved that TW has anti-inflammatory and immunomodulatory actions. It is interesting that some effective components isolated from TW have an antiviral effect and more and more intention has been paid to related achievements at home and abroad.

Effects of Tongluo Jiedu prescription on immune function and oxidative stress in patients with oral cancer

BACKGROUND Oral cancer,which is caused by mucous membrane variation,represents a prevalent malignant tumor in the oral and maxillofacial region,posing a significant threat to patients’lives and safety.While surgical intervention stands as a cornerstone treatment for oral cancer patients,it carries the risk of incomplete treatment or high rates of postoperative recurrence.Hence,a multifaceted approach incorporating diverse treatment modalities is essential to enhance patient prognosis.AIM To analyze the application effect of Tongluo Jiedu prescription as adjuvant therapy and its influence on patient prognosis in patients with oral cancer.METHODS Eighty oral cancer patients in our hospital were selected and divided into the observation group and control group by a random number table.The control group was treated with continuous arterial infusion chemotherapy of cisplatin and 5-fluorouracil.The observation group was additionally given Tongluo Jiadu prescription.The inflammatory stress level,peripheral blood T-cell subsets,and immune function of the two groups were subsequently observed.SPSS 21.0 was used for data analysis.RESULTS The observation group demonstrated lower levels of interleukin-6 and C-reactive protein,and a higher level of tumor necrosis factor in comparison to the control group.After treatment,the immune function in the observation group was significantly better than in the control group.CONCLUSION Tongluo Jiedu prescription can improve the immune function and oxidative stress level of patients with oral cancer and accelerate the recovery process.

Effects of personalized oral hygiene management on oral health status of pregnant women

BACKGROUND The Cariostat caries activity test(CAT)was used to evaluate the effectiveness of personalized oral hygiene management combining oral health education and professional mechanical tooth cleaning on the oral health status of pregnant women.AIM To investigate whether personalized oral hygiene management enhances the oral health status of pregnant women.METHODS A total of 114 pregnant women who were examined at Dalian Women’s and Children’s Medical Center were divided into four groups:High-risk experimental group(n=29;CAT score≥2;received personalized oral hygiene management training),low-risk experimental group(n=29;CAT score≤1;received oral health education),high-risk control group(n=28;CAT score≥2),and low-risk control group(n=28;CAT score≤1).No hygiene intervention was provided to control groups.CAT scores at different times were compared using independent samples t-test and least significant difference t-test.RESULTS No significant difference in baseline CAT scores was observed between the experimental and control groups,either in the high-risk or low-risk groups.CAT scores were reduced significantly after 3(1.74±0.47 vs 2.50±0.38,P<0.0001)and 6 months(0.53±0.50 vs 2.45±0.42,P<0.0001)of personalized oral hygiene management intervention but not after oral health education alone(0.43±0.39 vs 0.46±0.33,P>0.05 and 0.45±0.36 vs 0.57±0.32,P>0.05,respectively).Within groups,the decrease in CAT scores was significant(2.43±0.44 vs 1.74±0.47 vs 0.53±0.50,P<0.0001)for only the high-risk experimental group.CONCLUSION Personalized oral hygiene management is effective in improving the oral health of pregnant women and can improve pregnancy outcomes and the oral health of the general population.

Multifunctional role of oral bacteria in the progression of nonalcoholic fatty liver disease

Non-alcoholic fatty liver disease(NAFLD)encompasses a spectrum of liver disorders of varying severity,ultimately leading to fibrosis.This spectrum primarily consists of NAFL and non-alcoholic steatohepatitis.The pathogenesis of NAFLD is closely associated with disturbances in the gut micr-obiota and impairment of the intestinal barrier.Non-gut commensal flora,particularly bacteria,play a pivotal role in the progression of NAFLD.Notably,Porphyromonas gingivalis,a principal bacterium involved in periodontitis,is known to facilitate lipid accumulation,augment immune responses,and induce insulin resistance,thereby exacerbating fibrosis in cases of periodontitis-associated NAFLD.The influence of oral microbiota on NAFLD via the“oral-gut-liver”axis is gaining recognition,offering a novel perspective for NAFLD management through microbial imbalance correction.This review endeavors to encapsulate the intricate roles of oral bacteria in NAFLD and explore underlying mechanisms,emphasizing microbial control strategies as a viable therapeutic avenue for NAFLD.

Multivariate analysis of oral mucosal ulcers during orthodontic treatment

BACKGROUND Orthodontic treatment can easily cause local soft tissue reactions in the oral cavity of patients under mechanical stress,leading to oral mucosal ulcers and affecting their quality of life.At present,only limited literature has explored the factors leading to oral ulcers in orthodontic treatment,and these research results are still controversial.AIM To investigate the current status and related factors of oral mucosal ulcers during orthodontic treatment,aiming to provide a valuable reference for preventing this disease in clinical practice.METHODS A total of 587 patients who underwent orthodontic treatment at the Peking University School of Stomatology and Hospital of Stomatology between 2020 and 2022 were selected and allocated to an observation or control group according to the incidence of oral mucosal ulcers during orthodontic therapy.A questionnaire survey was constructed to collect patient data,including basic information,lifestyle and eating habits,treatment details,mental factors,and trace element levels,and a comparative analysis of this data was performed between the two groups.RESULTS A logistic regression model with oral ulcers as the dependent variable was established.The regression results showed that age(≥60 years:odds ratio[OR]:6.820;95%confidence interval[CI]:2.226–20.893),smoking history(smoking:OR:4.434;95%CI:2.527–7.782),toothbrush hardness(hard:OR:2.804;95%CI:1.746–4.505),dietary temperature(hot diet:OR:1.399;95%CI:1.220–1.722),treatment course(>1 year:OR:3.830;95%CI:2.203–6.659),and tooth brushing frequency(>1 time per day:OR:0.228;95%CI:0.138–0.377)were independent factors for oral mucosal ulcers(P<0.05).Furthermore,Zn level(OR:0.945;95%CI:0.927–0.964)was a protective factor against oral ulcers,while the SAS(OR:1.284;95%CI:1.197–1.378)and SDS(OR:1.322;95%CI:1.231–1.419)scores were risk factors.CONCLUSION Age≥60 years,smoking history,hard toothbrush,hot diet,treatment course for>1 year,tooth brushing frequency of≤1 time per day,and mental anxiety are independent risk factors for oral mucosal ulcers.Therefore,these factors should receive clinical attention and be incorporated into the development and optimization of preventive strategies for reducing oral ulcer incidence.

Pre-assembled nanospheres in mucoadhesive microneedle patch for sustained release of triamcinolone in the treatment of oral submucous fibrosis

Objective:Drug-loaded mucoadhesive silk fibroin(SF)microneedle patch can overcome the limitations of low bioavailability and significant pain associated with traditional treatment methods,such as topical application or injection of triamcinolone for oral submucous fibrosis(OSF).However,these systems release the drug too quickly,failing to meet the clinical requirements.This study aims to construct a mucoadhesive SF microneedle patch pre-assembled with silk fibroin nanospheres(SFN)and explore its ability to sustain the release of triamcinolone in the treatment of OSF.Methods:SFN was pre-assembled via precipitation reaction and characterized by scanning electron microscope(SEM)for the morphology.The particle size andζ-potential were measured by dynamic light scattering(DLS).Triamcinolone was loaded onto SFN using a diffusional post-loading method.The effective loading of triamcinolone was confirmed using Fourier-transform infrared spectroscopy(FTIR).The concentration of unloaded triamcinolone was quantified by high-performance liquid chromatography.Drug encapsulation efficiency and loading capacity of SFN were then calculated to determine the optimal amount of drug loading.The SFN suspension was pre-mixed with SF solution to prepare the microneedle under-layer.The microneedle morphology was observed by SEM.Compression mechanical tests were performed to evaluate the fracture force of microneedles at different nanosphere contents(5%,10%,and 20%),determining the optimal pre-mixing ratio.Ex-vivo mouse oral mucosa permeation studies were performed to ascertain the insertion depth of the microneedles via histological sections.The adhesive top layer was synthesized using SF and tannic acid,with FTIR confirming its successful synthesis.Its viscoelasticity was characterized by a rheometer,and differential scanning calorimetry analyzed thermal properties.Tensile tests evaluated the interfacial bonding strength between the adhesive layer and microneedle base to ensure no detachment during use.Adhesion to wet oral mucosal tissues was tested and compared to commercial oral patches.Under the optimized conditions,the double-layered mucoadhesive microneedle patch with pre-assembled nanospheres was prepared.Its cell compatibility was evaluated by cell counting kit-8(CCK-8),live/dead staining,and phalloidin staining after co culturing with fibroblasts.The drug release experiment was conducted to demonstrate its sustained release efficacy.Results:SFN(mean diameter 46.25 nm)was successfully prepared.The maximum drug encapsulation efficiency was(63.88±1.09)%(corresponding loading capacity of SFN was(27.41±3.06)%when the weight ratio of triamcinolone/SFN was 0.5.The corporation of SFN did not affect microneedle morphology.The mechanical properties of microneedles decreased with increasing nanosphere amount.Only the fracture force of the group with 5%SFN[(0.07±0.01)N/needle]exceeded the minimum force required for mucosal penetration,thus selected as the optimal pre-mixing ratio.Histological sections confirmed that the SFN microneedles could penetrate the epithelial layer and deliver drugs to OSF affected areas.Adhesion strength between the microneedle base and top layer was(94.8±6.89)kPa,confirming strong bonding with no detachment during use.The wet adhesive strength of the double-layered mucoadhesive microneedle patch[(41.28±7.43)kPa]was significantly enhanced compared to commercial oral patches(4.5 kPa,P<0.01).CCK-8 and live/dead staining results confirmed no significant cytotoxicity.Drug release experiment showed the double-layered mucoadhesive microneedle patch with pre-assembled SFN enabled sustained release time of triamcinolone from 4 days to 14 days.Conclusion:Pre-assembling nanospheres in mucoadhesive SF microneedle patches can extend triamcinolone release time,meeting clinical requirements for sustained drug delivery.

Omics for deciphering oral microecology

The human oral microbiome harbors one of the most diverse microbial communities in the human body,playing critical roles in oral and systemic health.Recent technological innovations are propelling the characterization and manipulation of oral microbiota.High-throughput sequencing enables comprehensive taxonomic and functional profiling of oral microbiomes.New long-read platforms improve genome assembly from complex samples.Single-cell genomics provides insights into uncultured taxa.Advanced imaging modalities including fluorescence,mass spectrometry,and Raman spectroscopy have enabled the visualization of the spatial organization and interactions of oral microbes with increasing resolution.Fluorescence techniques link phylogenetic identity with localization.Mass spectrometry imaging reveals metabolic niches and activities while Raman spectroscopy generates rapid biomolecular fingerprints for classification.Culturomics facilitates the isolation and cultivation of novel fastidious oral taxa using high-throughput approaches.Ongoing integration of these technologies holds the promise of transforming our understanding of oral microbiome assembly,gene expression,metabolites,microenvironments,virulence mechanisms,and microbe-host interfaces in the context of health and disease.However,significant knowledge gaps persist regarding community origins,developmental trajectories,homeostasis versus dysbiosis triggers,functional biomarkers,and strategies to deliberately reshape the oral microbiome for therapeutic benefit.The convergence of sequencing,imaging,cultureomics,synthetic systems,and biomimetic models will provide unprecedented insights into the oral microbiome and offer opportunities to predict,prevent,diagnose,and treat associated oral diseases.

Genomic alterations in oral multiple primary cancers

Oral squamous cell carcinoma (OSCC) is the predominant type of oral cancer, while some patients may develop oral multiple primary cancers (MPCs) with unclear etiology. This study aimed to investigate the clinicopathological characteristics and genomic alterations of oral MPCs. Clinicopathological data from patients with oral single primary carcinoma (SPC, n=202) and oral MPCs (n=34) were collected and compared. Copy number alteration (CNA) analysis was conducted to identify chromosomal-instability differences among oral MPCs, recurrent OSCC cases, and OSCC patients with lymph node metastasis. Whole-exome sequencing was employed to identify potential unique gene mutations in oral MPCs patients. Additionally, CNA and phylogenetic tree analyses were used to gain preliminary insights into the molecular characteristics of different primary tumors within individual patients. Our findings revealed that, in contrast to oral SPC, females predominated the oral MPCs (70.59%), while smoking and alcohol use were not frequent in MPCs.Moreover, long-term survival outcomes were poorer in oral MPCs. From a CNA perspective, no significant differences were observed between oral MPCs patients and those with recurrence and lymph node metastasis. In addition to commonly mutated genes such as CASP8, TP53 and MUC16, in oral MPCs we also detected relatively rare mutations, such as HS3ST6 and RFPL4A. Furthermore, this study also demonstrated that most MPCs patients exhibited similarities in certain genomic regions within individuals, and distinct differences of the similarity degree were observed between synchronous and metachronous oral MPCs.

Investigation of the Oral Health Status of Patients Based on Rehabilitation Nursing

Objective: To investigate the current situation of knowledge, attitude, and practice (KAP) of oral health among rehabilitation nursing patients, and provide some reference for implementing oral health intervention measures for rehabilitation nursing patients. Method: A total of 231 nursing patients in the rehabilitation department of a tertiary hospital in this city from January 2023 to October 2023 were selected as the research subjects. Their oral health knowledge, attitudes, and behaviors were investigated, and the oral health behavior habits of patients with different genders, education levels, and disease situations were compared. Result: The total awareness rate of oral health knowledge among patients was 73.16%, and the average score of oral health knowledge was 6.58 ± 1.25 points. The overall positive rate of oral health attitude among patients is 55.70%, and the average score of oral health attitude is 5.01 ± 1.04 points. The average score for oral health behavior is 16.87 ± 5.23 points. Only 8.48%, 3.3%, 1.3%, 2.6%, and 0.87% of patients seek timely medical treatment for bleeding tooth roots, gum swelling and pain, gum bleeding, tooth pain, and dental calculus, respectively;Only 5.19% of people change their toothbrush every 3 months, and only 10.39% use the vertical brush method to brush their teeth. The scores of oral health knowledge, attitudes, and behaviors of patients are related to age, educational level, disease type, and smoking situation. The oral health knowledge and attitude scores of elderly patients were lower than those of younger patients, and the difference was statistically significant (P P P P P < 0.05). Conclusion: The oral health status of rehabilitation nursing patients is not optimistic, with a moderate level of oral health knowledge, weak awareness of oral health, and a low qualification rate of oral health behaviors. Strengthening oral health education for rehabilitation nursing patients and incorporating oral health care procedures into rehabilitation nursing procedures is of great significance.

Electrostatic spraying for fine-tuning particle dimensions to enhance oral bioavailability of poorly water-soluble drugs

While spray-drying has been widely utilized to improve the bioavailability of poorly water-soluble drugs,the outcomes often exhibit suboptimal particle size distribution and large particle sizes,limiting their effectiveness.In this study,we introduce electrostatic spraying as an advanced technology tailored for poorly water-soluble drugs,enabling the fabrication of nanoparticles with fine and uniform particle size distribution.Regorafenib(1 g),as a model drug,copovidone(5 g),and sodium dodecyl sulfate(0.1 g)were dissolved in 200 ml ethanol and subjected to conventional-spray-dryer and electrostatic spray dryer.The electrostatic spray-dried nanoparticles(ESDN)showed smaller particle sizes with better uniformity compared to conventional spray-dried nanoparticles(CSDN).ESDN demonstrated significantly enhanced solubility and rapid release in water.In vitro studies revealed that ESDN induced apoptosis in HCT-116 cells to a greater extent,exhibiting superior cytotoxicity compared to CSDN.Furthermore,ESDN substantially improved oral bioavailability and antitumor efficacy compared to CSDN.These findings suggest that ESD shows potential in developing enhanced drug delivery systems for poorly water-soluble drugs,effectively addressing the limitations associated with CSD methods.

Oral candidiasis and potential risk factors among disabled and nondisabled in Al-Baha region, Saudi Arabia

BACKGROUND Oral candidiasis(OC)is an oral health disease that could influence patients’oral health quality of life.AIM To estimate prevalence of OC among disabled and non-disabled individuals and its potential risk factors in the Al-Baha region,Saudi Arabia.METHODS An observational cross-sectional study was carried out among 148 disabled and non-disabled participants.The technique of concentrated oral rinse employing the Sabouraud Dextrose Agar medium accompanied with 0.05%chloramphenicol was conducted to assess and isolate candida.Oral examination using the World Health Organization guidelines was conducted to examine participants’oral hea-lth status.A pre-designed questionnaire was also used to evaluate sociodemo-graphic,medical history,and oral hygiene habits of the studied population.RESULTS Out of 148 participants(n=57,38%)had colonized candida.None of the studied population had visible Candida lesions.However,Candida was found in the oral rinses without the subject presenting any lesions or issues caused by Candida(asymptomatic colonization).The most common prevalent OC among participants were Candida albicans,Candida glabrata,Candida dubliniensis,Candida krusei,Candida tropicalis,and Candida parapsilosis(n=35,61%;n=8,14%;n=6,10%;n=5,9%;n=2,4%;and n=1,2%)respectively.Diabetes,smoking,poor plaque,and gingival status were key potential risk factors that significantly associated with candida’s density and presence(P=0.001,P=0.001,P=0.01,and P=0.01)respectively.Disability status had no statistically significant effect on presence and density of Candida.CONCLUSION The prevalence of OC is almost third of the studied population;thus,may provoke a need to develop preventive strategies to reduce the OC rate and establish solid treatment plans.