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    文章类型: Journal Article
    孤儿院的儿童正面临许多挑战,一个主要的问题是他们的口腔健康是一个常见的未满足的需求。研究表明,龋齿和口面部创伤的患病率很高。这归因于人满为患,缺乏足够的工作人员,口腔卫生差,不当的饮食习惯,孤儿院系统的不足,以及医疗保健系统的不足。这项研究旨在评估伊巴丹孤儿院儿童龋齿和创伤的患病率和影响因素。
    在伊巴丹大都市的5个地方政府地区的所有18个注册孤儿院中,所有年龄组(7-15岁)的所有儿童都被纳入研究。口腔检查在自然光下进行,龋齿检测使用触觉和视觉方法进行。为此使用无菌口镜和CPI探针。评估每个孩子的龋齿状况和诱发因素。还评估了牙齿创伤的存在和诱发因素。数据处理是在SPSS版本21的帮助下进行的。
    一百四十六个孩子参加了这项研究,其中男性占51.4%,女性占48.6%。儿童的年龄范围和平均年龄为7-15岁9。分别为69±3.78。儿童龋齿患病率为17.8%,牙外伤患病率为7.5%。发现平均DMFT/dmft为0.42±1.06。性别以及深坑和裂隙的存在是龋齿的统计学显着预测因素。
    口腔健康在所有年龄段都至关重要,这项研究表明,在容易患龋齿和创伤的机构儿童中,相关性要高得多。孤儿院的普通儿童可能会受到龋齿和创伤的影响,但在这种环境下似乎更容易患龋齿。
    UNASSIGNED: A number of challenges are being faced by children in orphanages, a major one being their oral health as a common unmet need. Studies have shown high prevalence of dental caries and oro-facial trauma. This has been attributed to overcrowding, lack of adequate staff, poor oral hygiene, improper dietary habits, inadequacies in the orphanage system, as well as inadequacies in the healthcare system.This study aimed at assessing the prevalence and factors affecting dental caries and trauma among children in orphanages in Ibadan.
    UNASSIGNED: All the children within the age group (7 - 15 years) in all the 18 registered orphanages in the 5 Local Government Areas within Ibadan metropolis were recruited into the study. Intra-oral examination was done under natural light and caries detection was done using tactile and visual method. Sterile mouth mirrors and CPI probes were used for this purpose. Dental caries status and the predisposing factors in each child were assessed. Presence of dental trauma and the predisposing factors were also assessed. Data processing was carried out with the aid of SPSS version 21.
    UNASSIGNED: One hundred and forty-six children participated in the study, 51.4% of them were males while 48.6% were females. The age range and the mean age of the children were 7 - 15 years 9. 69 ± 3.78 respectively. The prevalence of dental caries among the children was 17.8% while that of dental trauma was 7.5%. The mean DMFT/dmft was found to be 0.42 ± 1.06. Gender and the presence of deep pits and fissures were the statistically significant predictors of dental caries.
    UNASSIGNED: Oral health is of utmost importance across all ages, much more pertinent among institutionalized children who are prone to dental caries and trauma as revealed by this study. An average child in an orphanage may be affected by both dental caries and trauma, but appears to be more prone to dental caries in this environment.
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  • 文章类型: Journal Article
    银(I)-二氨基氟化物(SDF)和银(I)-氟化物(SF)络合物已经成功地用于龋齿的阻止多年。然而,迄今为止,很少有研究报告这些药物的分子结构组成和溶液状态[通常作为高浓度的38%(w/v)溶液应用]。这里,我们探索了市售SDF和SF产品的溶液状态和化学成分,其次,研究了这些产品与完整的人全口唾液上清液(WMSS)中存在的生物分子的多组分相互作用。
    高分辨率19FNMR分析用于探索SDF和SF产品解决方案,并确定WMSS氟化物(F-)浓度,而氨(NH3)释放形式SDF通过1HNMR光谱追踪。采用SEM和薄膜FTIR-ATR分析来探索顺序生成的AgCl沉积物和发色Ag/AgCl纳米颗粒(CSNP)的原子和分子组成;后者的时间依赖性生成是通过分光光度法进行的。
    SF水溶液的19FNMR光谱包含非常宽的F-信号(Δv1/270Hz),证明其溶剂化的F-含量在NMR时间尺度上与Ag(I)快速交换,但是自卫队的人有更强烈的共鸣,类似于“自由”F-(4Hz)。此外,进一步的NMR结果表明,流行的SDF产物含有高摩尔过量的F-和NH3。用SDF和SF处理WMSS产生灰白色沉淀,在23°C下缓慢发展成CSNP;SEM显示该材料中银和氯化物的含量很高(原子含量比为ca.1:1)。FTIR-ATR分析发现,形成的CSNP含有一系列唾液生物分子,其似乎包封Ag/AgCl核(还发现显著的硫氰酸盐含量)。总之,获得的核磁共振结果表明,SF,但不是SDF,产品解决方案具有在其“自由”形式和Ag(I)结合形式之间快速交换F-,并且SDF包含大量过量的F-及其NH3配体。这些复合物与WMSS生物分子的相互作用依次产生了表征的AgCl沉积物和CSNP。
    鉴于其众所周知的杀微生物和防龋性能,观察到的涉及唾液催化的CSNP的自体生物构建具有重要的治疗意义。
    UNASSIGNED: Silver(I)-diammine fluoride (SDF) and silver(I)-fluoride (SF) complexes have been successfully employed for the arrest of dental caries for many years. However, to date there are very few studies available reporting on the molecular structural compositional and solution status of these agents [typically applied as highly-concentrated 38% (w/v) solutions]. Here, we explored the solution status and chemical constitution of commercially-available SDF and SF products, and secondly investigated the multicomponent interplay of these products with biomolecules present in intact human whole-mouth salivary supernatants (WMSSs) in vitro.
    UNASSIGNED: High-resolution 19F NMR analysis was employed to explore SDF and SF product solutions, and to determine WMSS fluoride (F-) concentrations, whereas ammonia (NH3) release form SDF was tracked by 1H NMR spectroscopy. SEM and thin-film FTIR-ATR analyses were employed to explore the atomic and molecular compositions of sequentially-generated AgCl deposits and chromophoric Ag/AgCl nanoparticles (CSNPs); the time-dependent generation of the latter was followed spectrophotometrically.
    UNASSIGNED: 19F NMR spectra of aqueous SF solutions contained a very broad F- signal (Δv1/2 70 Hz), demonstrating that much of its solvated F- content was rapidly exchanging with Ag(I) on the NMR timescale, but those of SDF had a much sharper resonance, similar to that of \"free\" F- (4 Hz). Moreover, further NMR results revealed that a popular SDF product contained high molar excesses of both F- and NH3. Treatment of WMSSs with SDF and SF generated an off-white precipitate, which slowly developed into CSNPs at 23°C; SEM demonstrated high contents of both silver and chloride in this material (ca.1:1 atomic content ratio). FTIR-ATR analysis found that the CSNPs formed contained a range of salivary biomolecules, which appear to encapsulate the Ag/AgCl core (significant thiocyanate contents were also found). In conclusion, NMR results acquired demonstrated that SF, but not SDF, product solutions feature rapidly-exchanging F - between its \"free\" and Ag(I)-bound forms, and that SDF contains large excesses of both F- and its NH3 ligands. Characterised AgCl deposits and CSNPs were sequentially produced from the interactions of these complexes with WMSS biomolecules.
    UNASSIGNED: In view of their well-known microbicidal and cariostatic properties, the observed autobioconstruction of CSNPs involving salivary catalysis is of much therapeutic significance.
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  • 文章类型: Journal Article
    碳水化合物有饮食的作用,但是过量食用高热量的糖会导致代谢性疾病和龋齿的发病率增加。最近,具有甜味特性和低热值的碳水化合物,如D-塔格糖,已被研究为替代糖。D-塔格糖是一种稀有糖,具有对健康非常感兴趣的营养和功能特性。这篇文献综述提出了一种研究D-塔格糖生物学效应的方法,强调它对口腔健康的好处。研究报告D-塔格糖具有抗氧化和益生元作用,低消化率,降低血糖和胰岛素反应,以及改善血脂状况的潜力,构成糖尿病和肥胖症的替代品。还可以观察到D-塔格糖具有抗氧化作用,有利于消除自由基,因此,导致细胞氧化应激的减少。此外,它还具有抗口腔物种的抗菌潜力。关于口腔健康,研究表明,D-塔格糖有效地逆转细菌共聚,包括牙周病变物种,并损害了致龋细菌的活性和生长,比如S.mutans。D-塔格糖显著抑制生物膜形成,变异链球菌培养物中的pH降低和不溶性葡聚糖合成。唾液变形链球菌计数也通过消耗含有D-塔格糖和木糖醇的口香糖而显著减少。此外,有证据表明,塔格糖作为生物膜净化的空气抛光粉是有效的。文献表明,D-塔格糖有助于预防全身性疾病,也是改善口腔健康的有前途的药物。
    Carbohydrates have a dietary role, but excessive consumption of high-calorie sugars can contribute to an increased incidence of metabolic diseases and dental caries. Recently, carbohydrates with sweetening properties and low caloric value, such as D-tagatose, have been investigated as alternative sugars. D-tagatose is a rare sugar that has nutritional and functional properties of great interest for health. This literature review presents an approach to the biological effects of D-tagatose, emphasizing its benefits for oral health. Studies report that D-tagatose has antioxidant and prebiotic effects, low digestibility, reduced glycemic and insulinemic responses, and the potential to improve the lipid profile, constituting an alternative for diabetes mellitus and obesity. It can also be observed that D-tagatose has an antioxidant action, favoring the elimination of free radicals and, consequently, causing a reduction in cellular oxidative stress. Furthermore, it also has antibacterial potential against oral species. Regarding oral health, studies have shown that D-tagatose efficiently reversed bacterial coaggregations, including periodontopathogenic species, and impaired the activity and growth of cariogenic bacteria, such as S. mutans. D-tagatose significantly inhibited biofilm formation, pH decrease and insoluble glucan synthesis in S. mutans cultures. Salivary S. mutans counts were also significantly reduced by the consumption of chewing gum containing D-tagatose and xylitol. In addition, there is evidence that tagatose is effective as an air-polishing powder for biofilm decontamination. The literature indicates that D-tagatose can contribute to the prevention of systemic diseases, also constituting a promising agent to improve oral health.
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  • 文章类型: Journal Article
    背景和目的:这项随机的口开研究对照临床试验的目的是比较放置在非龋齿宫颈病变(NCCL)上的复合树脂修复体的2年临床表现与一步自蚀刻,总蚀刻,和选择性搪瓷蚀刻和自蚀刻粘合剂技术。材料和方法:32例患者分别在NCCL(TetricEvoCeram/Ivoclar/Vivadent)接受了三种树脂复合材料修复体,用全蚀刻粘合剂(ExciTEF/Ivoclar/Vivadent)和自蚀刻(粘合剂SEOneF/Ivoclar/Vivadent)粘合,不使用和使用选择性搪瓷蚀刻。所有修复体在基线时由两名审查员评估,6-,12-,18-,和24个月的FDI临床标准(术后保留,龋齿的发生,边际适应,和边缘染色)。逻辑回归分析,科恩的卡帕统计数据,多因素分析,和X2用广义估计方程进行。结果:2年后,总蚀刻的保留率为86.8%,自蚀刻92.26%,选择性牙釉质蚀刻和自蚀刻为93.63%。在修复物上未检测到龋齿。关于边际适应,全蚀刻技术的临床完美修复率为26.9%,16%用于自蚀刻,选择性搪瓷蚀刻和自蚀刻为25.9%。逻辑回归模型显示,只有时间降低了完美边际适应的概率。结论:所有三种粘附策略都提供了修复体,保留率或边缘适应没有显着差异,而总蚀刻对边缘染色产生更好的性能。所有修复体在2年后被评估为临床上可接受的。
    Background and objective: The aim of this randomized split-mouth study-controlled clinical trial was to compare the 2-year clinical performance of resin composite restorations placed at non-caries cervical lesions (NCCL) with one-step self-etch, total-etch, and selective enamel etch and self-etch adhesive techniques. Materials and methods: Thirty-two patients received three resin composite restorations each at NCCLs (Tetric EvoCeram/Ivoclar/Vivadent), bonded with a total-etch adhesive agent (ExciTE F/Ivoclar/Vivadent) and a self-etch (AdheSE One F/Ivoclar/Vivadent) without and with selective enamel etching. All restorations were evaluated by two examiners at baseline, 6-, 12-, 18-, and 24-months with FDI clinical criteria (post-operation regarding retention, caries occurrence, marginal adaptation, and marginal staining). A logistic regression analysis, a Cohen\'s kappa statistic, a multifactorial analysis, and X2 were performed with generalized estimating equations. Results: After 2 years, the retention rate was 86.8% for total etch, 92.26% for self-etch, and 93.63% for selective enamel etching and self-etch. No caries was detected on the restorations. Concerning marginal adaptation, the clinically perfect restorations were 26.9% for the total-etch technique, 16% for self-etch, and 25.9% for selective enamel etch and self-etch. The logistic regression model revealed that only time reduced the probability of perfect marginal adaptation. Conclusions: All three adhesive strategies provided restorations with no significant differences in the retention rate or marginal adaptation, whereas the total etch yielded better performance for marginal staining. All restorations were assessed as clinically acceptable after 2 years.
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  • 文章类型: Journal Article
    背景和目标:本研究旨在通过利用韩国国家健康和营养调查(2013-2015)的数据来弥合这些差距。检查牛奶消费量之间的细微差别联系,频率,龋齿的类型和患病率。材料和方法:利用韩国国家健康和营养检查调查(2013-2015)的数据,这项研究探讨了4843名受试者(加权n=15,581)的牛奶消费与龋齿患病率之间的关系,包括2856名男性和1987名女性;男女加权样本量分别为6656和8925,分别。通过评估龋齿的数量来评估龋齿的患病率,已填充,缺少牙齿。结果:分析表明,牛奶消费量增加与患龋齿的风险之间存在显着正相关。总比值比为1.653(95%CI:1.153-2.370,p<0.05)。这种关联在女性中更为明显,表现出1.865的优势比(95%CI:1.157-3.006,p<0.05),年龄被确定为一个重要变量,特别是50岁及以上的参与者。相比之下,男性群体之间的关系,虽然为阳性(赔率比:1.613,95%CI:0.991-2.625),无统计学意义(p=0.054)。结论:这些发现表明,牛奶消费可能是龋齿的潜在风险指标,尤其是在女性中,强调在牙齿健康实践中需要有针对性的饮食建议。
    Background and Objectives: This study aims to bridge these gaps by utilizing data from the Korea National Health and Nutrition Examination Survey (2013-2015), examining the nuanced associations between milk consumption\'s quantity, frequency, and type and the prevalence of dental caries. Materials and Methods: Utilizing data from the Korea National Health and Nutrition Examination Survey (2013-2015), this study explores the association between milk consumption and the prevalence of dental caries in a sample of 4843 subjects (weighted n = 15,581), including 2856 males and 1987 females; weighted sample sizes were 6656 and 8925 for men and women, respectively. The prevalence of dental caries was assessed by evaluating the number of decayed, filled, and missing teeth. Results: The analysis demonstrated a significant positive association between increased milk consumption and the risk of developing dental caries, with an overall odds ratio of 1.653 (95% CI: 1.153-2.370, p < 0.05). The association was more pronounced in females, exhibiting an odds ratio of 1.865 (95% CI: 1.157-3.006, p < 0.05), and age was identified as a significant variable, particularly among participants aged 50 and above. In contrast, the relationship among the male group, though positive (odds ratio: 1.613, 95% CI: 0.991-2.625), was not statistically significant (p = 0.054). Conclusion: These findings suggest that milk consumption may be a potential risk indicator for dental caries, particularly among women, emphasizing the need for targeted dietary recommendations in dental health practices.
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  • 文章类型: Journal Article
    背景和目的:在具有开放顶点的牙齿中,由于难以处理三氧化二矿骨料(MTA),因此进行一次疗程的apexification是一项具有挑战性的处理。牙科中的微创方法也影响了牙髓的腔设计。直到现在,在将MTA放置在传统(TradAC)或保守(ConsAC)牙髓进入腔中的过程中,除了手动冷凝之外,还没有研究不同的技术。这项体外研究的目的是比较和评估在TradACs或ConsACs中使用不同技术放置的MTA根尖塞的闭塞质量。材料与方法:根据空腔设计将60颗上中央牙分为两个主要组,然后根据MTA放置技术将每个主要组进一步分为三个亚组(n=10):TradAC手册,TradAC-手动+间接超声波激活,TradAC-manual+XP-endoShaper(XPS),ConsAC-manual,ConsAC-手动+间接超声激活,和ConsAC-manual+XPS。随后,使用显微计算机断层扫描分析了MTA根尖塞的孔隙率。使用Kruskal-WallisH检验和Mann-WhitneyU检验进行统计分析。统计学显著性设定为p<0.05。结果:根据腔体设计和MTA应用技术,孔隙率的体积百分比(%)存在差异(p<0.05)。除XPS组外,与TradACs相比,在ConsACs中观察到更多的孔隙率。在TradAC中,在手册中观察到明显最低的开孔率和总孔隙率,超声波,和XPS技术,分别。在ConsAC中,在手册中观察到明显最低的孔隙率,XPS,和超声波技术,分别为(p<0.05)。结论:在MTA闭塞中,腔设计和应用技术对MTA孔隙率有影响。与TradAC相比,在ConsAC中创建根尖塞可能会导致更多的孔隙率,特别是当手动或间接超声激活是优选的。单独选择手动技术可以被认为足以控制TradAC和ConsAC的孔隙率。
    Background and Objectives: In teeth with open apices, performing single session apexification is a challenging treatment due to the difficulty in handling mineral trioxide aggregate (MTA). Minimally invasive approaches in dentistry have also influenced the cavity designs in endodontics. Until now, different techniques have not been investigated in addition to manual condensation during the process of placing MTA in traditional (TradACs) or conservative (ConsACs) endodontic access cavities. The aim of this in vitro study was to compare and evaluate the obturation quality of MTA apical plugs placed with different techniques in TradACs or ConsACs. Materials and Methods: Sixty upper central teeth were divided into two main groups based on cavity design, and then each main group was further divided into three subgroups according to MTA placement techniques (n = 10): TradAC-manual, TradAC-manual + indirect ultrasonic activation, TradAC-manual + XP-endo Shaper (XPS), ConsAC-manual, ConsAC-manual + indirect ultrasonic activation, and ConsAC-manual + XPS. Subsequently, the porosity percentages in the MTA apical plug were analyzed using micro-computed tomography. The statistical analysis was performed using the Kruskal-Wallis H test and Mann-Whitney U test. Statistical significance was set at p < 0.05. Results: There were differences in volume of porosity percentages (%) according to cavity designs and MTA application techniques (p < 0.05). Except for the XPS group, more porosity was observed in ConsACs compared to TradACs. In TradACs, the significantly lowest open and total porosity was observed in the manual, ultrasonic, and XPS techniques, respectively. In ConsACs, the significantly lowest porosity was observed in the manual, XPS, and ultrasonic techniques, respectively (p < 0.05). Conclusions: In MTA obturation, cavity designs and application techniques had an impact on the MTA porosity. Creating an apical plug in ConsACs may result in more porosity compared to TradACs, especially when manual or indirect ultrasonic activation is preferred. Opting for the manual technique alone may be considered sufficient for controlling porosity for both TradACs and ConsACs.
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  • 文章类型: Journal Article
    孕妇口腔健康相关生活质量及其对健康状况的影响是科学研究中需要研究的重要课题。这项研究的目的是评估孕前肥胖对孕妇口腔健康相关生活质量(OHRQoL)的影响。对93名孕妇进行了前瞻性队列研究,这些孕妇在妊娠中期(T1)和分娩后(T2)进行了评估。以下进行了分析:龋齿(DMFT),OHRQoL(OHIP-14),人体测量数据(BMI),社会经济,人口统计学,口腔卫生行为习惯和牙科服务的使用。进行了未调整和调整的泊松回归分析,以确定预测因子对OHRQoL的影响。调整后的分析结果显示较低的教育相对风险(RR)(1.37;95CI1.02-1.83;<0.00),低收入(RR2.19;95CI1.63-2.93;<0.00)和孕前BMI较高(RR1.03;95%CI1.01-1.04;<0.00)与产后孕妇OHRQoL恶化相关.折线是T2时OHRQoL较好的预测因子(RR0.73;95CI0.57-0.93;<0.01)。BMI较高,低教育,低收入和口腔卫生习惯不足是婴儿出生后孕妇OHRQOL恶化的预测因素。
    The oral health-related quality of life of pregnant women and its effects on health conditions are important topics to be investigated in scientific research. The objective of this study was to evaluate the impact of pre-pregnancy obesity on oral health-related quality of life (OHRQoL) in pregnant women. A prospective cohort study was carried out with 93 pregnant women who were evaluated in the 2nd trimester of pregnancy (T1) and after delivery (T2). The following were analyzed: dental caries (DMFT), OHRQoL (OHIP-14), anthropometric data (BMI), socioeconomic, demographic, oral hygiene behavioral habits and the use of dental services. Unadjusted and adjusted Poisson regression analyses were performed to determine the impact of predictors on OHRQoL. The results of the adjusted analysis showed lower education relative risk (RR) (1.37; 95%CI 1.02-1.83; <0.00), low income (RR 2.19; 95%CI 1.63-2.93; <0.00) and higher BMI pre-pregnancy (RR 1.03; 95% CI 1.01-1.04; <0.00) were associated with worse OHRQoL in postpartum pregnant women. Flossing was a predictor of better OHRQoL at T2 (RR 0.73; 95%CI 0.57-0.93; <0.01). Higher BMI, low education, low income and inadequate oral hygiene habits were predictors of worse OHRQOL of pregnant women after the birth of the baby.
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  • 文章类型: Journal Article
    在这项探索性研究中,我们搜索了两种最常见的口腔疾病——龋齿和牙周病之间的关联,同时考虑了其他因素,例如个性化的临床图片(患者的个体风险因素),基于人龈沟液(GCF)组成分子变化的多元数据分析方法。为此,一组来自不同人口统计学患者的龈沟液样品的同步加速器傅里叶变换红外光谱(FTIR)光谱,龋齿发展和牙周病的水平,并获得和分析伴随慢性疾病的存在/不存在。使用一组技术(v-,F-,卡方检验;主成分分析(PCA);以及R软件包FactoMineR中实现的主成分分层聚类(HCPC))使我们能够评估主成分(PC)与受访者特征之间的关系。通过识别对光谱数据集的区分贡献最大的特征(FTIR光谱中的振动模式),并考虑到患者特征之间的相互关系,我们能够将特定的生物学标记(特定的分子群)与两种感兴趣的因素-两种类型的口腔疾病进行匹配.获得的结果表明,从患有不同龋齿发展和牙周疾病的患者的GCF样品的红外(IR)光谱中观察到的模式的定量和定性组成的变化证实了识别患者特异性光谱信息的难度。同时,与龋齿发展水平相比,不同的牙周病理与患者的其他特征更密切相关。对光谱数据集进行的多变量分析表明,不仅需要考虑口腔疾病的共同发生,还有其他一些因素。缺乏这种考虑(在该领域的许多研究中很典型)可能会导致误解,从而在搜索某些口腔疾病的生物学标记时导致数据丢失。
    In this exploratory study, we searched for associations between the two most common diseases of the oral cavity-dental caries and periodontal diseases-taking into account additional factors, such as personalized clinical pictures (the individual risk factors of the patient), based on the method of a multivariate data analysis of the molecular changes in the composition of human gingival crevicular fluid (GCF). For this purpose, a set of synchrotron Fourier-transform infrared spectroscopy (FTIR) spectra of gingival crevicular fluid samples from patients with different demographics, levels of dental caries development and periodontal diseases, and the presence/absence of concomitant chronic diseases were obtained and analyzed. Using a set of techniques (v-, F-, Chi-square tests; a principal component analysis (PCA); and the hierarchical clustering of principal components (HCPCs)) implemented in the R package FactoMineR allowed us to assess the relationship between the principal components (PCs) and characteristics of the respondents. By identifying the features (vibrational modes in the FTIR spectra) that contribute most to the differentiation of the spectral dataset, and by taking into account the interrelationships between the patients\' characteristics, we were able to match specific biological markers (specific molecular groups) to the two factors of interest-two types of oral pathologies. The results obtained show that the observed changes in the quantitative and qualitative composition of the modes in the infrared (IR) spectra of the GCF samples from patients with different dental caries developments and periodontal diseases present confirm the difficulty of identifying patient-specific spectral information. At the same time, different periodontal pathologies are more closely associated with other characteristics of the patients than the level of their caries development. The multivariate analysis performed on the spectral dataset indicates the need to take into account not only the co-occurrence of oral diseases, but also some other factors. The lack of this consideration (typical in lots of studies in this area) may lead to misinterpretations and consequently to a loss of data when searching for biological markers of certain oral diseases.
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  • 文章类型: Journal Article
    本研究利用植物化学筛选对植物提取物进行定性分析,旨在鉴定各种类型的次生代谢产物。此外,测定了不同类型的牛至和丹参提取物的抗菌活性。为了达到本研究的目的,水性,乙醇,制备和酶提取物,并筛选植物化学能力和抗氧化活性。抗菌活性的测定包括口腔和食物病原菌菌株的抗生素敏感性模式的表型筛选,最低抑菌浓度和最低杀菌浓度的测定-通过微量稀释液试验和体外评估抗菌效果-研究的草药提取物的抗生物膜特性。结果:我们的研究评估了植物化学成分和抗氧化剂,抗菌,O.vulgare和S.triloba提取物的抗生物膜特性。分析的样品含有生物活性化合物,如酚类和类黄酮,有助于观察到的强抗氧化作用。此外,它们对口腔生物膜形成表现出显著的活性,并对龋齿微生物和食物病原体表现出显著的抗菌功效。尽管方法不同,所有提取物均显示出显着的抗氧化能力和对各种病原体的有希望的抗菌活性,包括耐药菌株,同时也抑制生物膜的形成。尽管仅限于两种植物物种,并且面临方法上的限制,这项研究为未来的研究奠定了基础,表明了O.vulgare和S.triloba提取物的治疗潜力。需要进一步探索报告潜在机制并通过临床试验验证疗效。
    This study utilized phytochemical screening to conduct the qualitative analysis of plant extracts, aiming to identify various classes of secondary metabolites. Moreover, the antibacterial activity of different types of Oregano vulgare and Salvia triloba extracts was determined. To achieve the aim of this study, aqueous, ethanolic, and enzymatic extracts were prepared and screened for phytochemical capacity and antioxidant activities. The determination of the antibacterial activity included phenotypic screening of antibiotic susceptibility pattern of oral and food pathogenic bacterial strains, determination of the minimum inhibitory concentration and minimum bactericidal concentration-via microdilution broth test and in vitro valuation of antibacterial efficacies-of the anti-biofilm properties of the studied herbal extractions. Results: Our study evaluated the phytochemical composition and the antioxidant, antibacterial, and anti-biofilm properties of O. vulgare and S. triloba extracts. The analyzed samples contained bioactive compounds, such as phenolics and flavonoids, contributing to the observed strong antioxidant effect. Furthermore, they exhibited notable activity against oral biofilm formation and demonstrated significant antibacterial efficacy against dental caries\' microorganisms as well as food pathogens. Despite methodological variations, all extracts showed significant antioxidant capacity and promising antibacterial activity against various pathogens, including resistant strains, while also inhibiting biofilm formation. Although limited to two plant species and facing methodological constraints, this study lays the groundwork for future research, indicating the therapeutic potential of O. vulgare and S. triloba extracts. Further exploration is needed to report on underlying mechanisms and validate efficacy through clinical trials.
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  • 文章类型: Journal Article
    目的:本研究旨在比较硅酸钙基水泥(Biodentine)和玻璃离聚物水泥(GIC:FujiIX)对人工脱矿质牙本质的再矿化作用。
    方法:在从34个提取的有声人类第三磨牙制备的牙本质盘中制备四个标准腔。在每个光盘中,在去盐之前用耐酸清漆覆盖一个空腔(第1组)。将标本浸泡在化学去矿质溶液中96小时,以诱发人工龋齿病变。此后,每个腔填充生物牙本质(第2组)和GIC(第3组),分别,一个龋齿病变未恢复作为阴性对照(第4组)。接下来,将标本浸入模拟体液(SBF)中21天。在对标本进行横切后,通过使用扫描电子显微镜-能量色散X射线光谱(SEM-EDX)计算每个样品中的Ca/P比。最后,使用重复测量方差分析和事后Bonferroni校正对数据进行分析.
    结果:与第4组相比,两种水泥类型均诱导牙本质再矿化。第2组的Ca/P比显著高于第3组(p<0.05)。
    结论:Biodentine的牙本质病变再矿化能力高于GIC,表明前者作为生物活性牙本质替代材料的有用性。
    结论:Biodentine对龋齿牙本质的再矿化能力高于GIC,其界面性质使其成为一种有前途的生物活性牙本质修复材料。
    OBJECTIVE: This study aimed to compare the remineralization effects of a calcium silicate-based cement (Biodentine) and of a glass ionomer cement (GIC: Fuji IX) on artificially demineralized dentin.
    METHODS: Four standard cavities were prepared in dentin discs prepared from 34 extracted sound human third molars. In each disc, one cavity was covered with an acid-resistant varnish before demineralization (Group 1). The specimens were soaked in a chemical demineralization solution for 96 h to induce artificial carious lesions. Thereafter, one cavity each was filled with Biodentine (Group 2) and GIC (Group 3), respectively, and one carious lesion was left unrestored as a negative control (Group 4). Next, specimens were immersed in simulated body fluid (SBF) for 21 days. After cross-sectioning the specimens, the Ca/P ratio was calculated in each specimen by using scanning electron microscopy-energy-dispersive X-ray spectroscopy (SEM-EDX). Finally, data were analyzed using repeated-measures ANOVA with post-hoc Bonferroni correction.
    RESULTS: Both cement types induced dentin remineralization as compared to Group 4. The Ca/P ratio was significantly higher in Group 2 than in Group 3 (p < 0.05).
    CONCLUSIONS: The dentin lesion remineralization capability of Biodentine is higher than that of GIC, suggesting the usefulness of the former as a bioactive dentin replacement material.
    CONCLUSIONS: Biodentine has a higher remineralization ability than that of GIC for carious dentin, and its interfacial properties make it a promising bioactive dentin restorative material.
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