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Bond strength of resin-based restorative materials to fast-setting calcium silicate cement using different resin adhesive systems. 使用不同树脂粘合剂系统的树脂基修复材料与速凝硅酸钙水泥的粘合强度。
IF 1.8 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-10-27 DOI: 10.1111/eos.13025
Bahram Ranjkesh, Hilde M Kopperud, Henrik Løvschall

This study assessed the bond strength of resin-based restorative materials to fast-setting calcium silicate cement (Aarhus Uinversity, Denmark) when treated with each of two one-bottle universal adhesive systems. The cement surface (N = 256) was treated with a self-priming adhesive and a self-etch phosphate monomer-containing adhesive with and without etching of the cement surface. Specimens then received either resin composite or compomer restorative materials (n = 32). The bond strength was measured after 1 day and 1500 thermocycles (n = 16). The failure type was visually inspected. The cement-adhesive-restorative material interface was visualized using scanning electron microscopy (SEM). The data were analyzed using multiple linear regression. Restorative material type, resin adhesive system, and thermocycling had a statistically significant effect on the bond strength. Compomer restorative material and self-etch universal adhesive system demonstrated statistically significantly higher bond strength values to fast-setting calcium silicate cement, predominantly exhibiting cement cohesive failure. Etching the cement surface enhanced the bond strength of the self-priming universal adhesive. Thermocycling significantly reduced the bond strength. SEM showed self-etch universal adhesive seemingly diffused over the etched cement surface compared to other groups. Self-etch phosphate monomer-containing universal adhesive and compomer resulted in the highest bond strength to fast-setting calcium silicate cement.

本研究评估了树脂基修复材料与快速固化硅酸钙水泥(丹麦奥胡斯大学)在使用两种单瓶通用粘合剂系统处理时的粘结强度。使用自吸式粘合剂和含磷酸单体的自酸蚀粘合剂处理水泥表面(N = 256),并对水泥表面进行蚀刻和不蚀刻处理。然后,试样接受树脂复合材料或复合材料修复材料(n = 32)。在 1 天和 1500 个热循环后测量粘接强度(n = 16)。对失败类型进行目测。使用扫描电子显微镜(SEM)观察骨水泥-粘接剂-修复材料的界面。使用多元线性回归分析数据。修复材料类型、树脂粘接系统和热循环对粘接强度有显著的统计学影响。从统计学角度看,复合修复材料和自酸蚀通用粘合剂系统与速凝硅酸钙水门汀的粘结强度值明显更高,主要表现为水门汀粘结失效。蚀刻水门汀表面增强了自喷涂通用粘接剂的粘接强度。热循环明显降低了粘接强度。扫描电子显微镜显示,与其他组别相比,自喷通用粘合剂似乎扩散到了蚀刻水泥表面。含磷酸单体的自酸蚀通用粘合剂和复合材料与速凝硅酸钙水泥的粘合强度最高。
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引用次数: 0
Different adhesive approaches for the bonding of a new universal resin cement to a disilicate glass-ceramic. 将新型通用树脂粘接剂与二硅酸盐玻璃陶瓷粘接的不同粘接方法。
IF 1.8 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-10-25 DOI: 10.1111/eos.13024
Anna Caroliny Detogni, Vitaliano Gomes Araújo-Neto, Renally Bezerra Wanderley Lima, Mário Alexandre Coelho Sinhoreti

This study aimed to evaluate the shear bond strength (SBS) when bonding a universal resin cement to a disilicate glass-ceramic using different adhesive protocols. Sixty specimens were etched with 10% hydrofluoric acid (HF) for 20 s and assigned to one of four treatment protocols (n = 15): The Positive control protocol comprised use of a universal adhesive system + adhesive resin cement; the Test1 protocol comprised use of a new universal adhesive system + universal resin cement; the Test2 protocol comprised use of a silane coupling agent + universal resin cement; and the use of a universal resin cement without adhesive and silane served as the Negative control. One of the two resin cement cylinders built on each specimen in each group was used to test for 24-h SBS, while the other was thermocycled and then tested for SBS. Data were submitted to two-way ANOVA, Tukey's test, and Weibull analysis. The negative control (24 h) showed the lowest SBS mean value. The Test2 protocol resulted in the highest SBS mean value after thermocycling. Adhesive and mixed failures were prevalent in all groups. No statistical difference in m values was observed among the groups at 24 h. After thermocycling, the two Test protocols showed the highest m values. The m values were significantly lower after thermocycling than at 24 h for all groups. After thermal aging, The Test2 protocol resulted in a statistically significantly higher SBS mean value after thermal aging than seen for the other groups.

本研究旨在评估使用不同粘接方案将通用树脂粘接剂粘接到二硅酸盐玻璃陶瓷时的剪切粘接强度(SBS)。60 个试样用 10%氢氟酸(HF)腐蚀 20 秒,然后分配到四种处理方案之一(n = 15):阳性对照方案包括使用通用粘合剂系统+粘合树脂水泥;测试 1 方案包括使用新型通用粘合剂系统+通用树脂水泥;测试 2 方案包括使用硅烷偶联剂+通用树脂水泥;使用不含粘合剂和硅烷的通用树脂水泥作为阴性对照。在每组试样上制作的两个树脂水泥圆柱体中,一个用于测试 24 小时 SBS,另一个进行热循环,然后测试 SBS。对数据进行了双向方差分析、Tukey 检验和 Weibull 分析。阴性对照(24 小时)的 SBS 平均值最低。热循环后,Test2 方案的 SBS 平均值最高。所有组中都普遍存在粘合和混合故障。热循环后,两个 Test 方案的 m 值最高。所有组的 m 值在热循环后都明显低于 24 小时时的值。热老化后,Test2 方案的 SBS 平均值在统计上明显高于其他组别。
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引用次数: 0
Psychological resilience in patients with primary Sjögren's syndrome: effect of involvement of major salivary and lacrimal glands. 原发性斯约格伦综合征患者的心理适应能力:主要唾液腺和泪腺受累的影响。
IF 1.8 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-10-16 DOI: 10.1111/eos.13022
Esra Sevimli, Seda Günay, Alida Aliyeva, Burcu Aksoy, Farida Fortune, Nevsun Inanc, Gonca Mumcu

The aim of this study was to assess whether the involvement of major salivary and lacrimal glands in primary Sjögren's syndrome (pSS) affected the psychological resilience of patients. This cross-sectional study included 116 patients with pSS. Data were collected through clinical examinations, measurement of salivary flow rates (SFRs), and from Schirmer's test, as well as from patient-reported outcome measures (PROMs), such as the European League Against Rheumatism (EULAR) Sjögren's Syndrome Patient Reported Index (ESSPRI), Brief Resilience Scale (BRS), Work Productivity and Activity Impairment (WPAI), Oral Health Impact Profile-14 (OHIP-14), and the Hospital Anxiety and Depression Scale (HADS). Hyposalivation was defined as an unstimulated SFR of ≤0.1 mL/min. The BRS score (mean ± SD = 2.60 ± 0.69) was lower in patients with recurrent parotitis (2.11 ± 0.37) than in those without recurrent parotitis (2.67 ± 0.86), in the whole group. In patients with an unacceptable symptom state (ESSPRI score ≥ 5 points), a lower BRS score was observed in patients with both hyposalivation and ocular dryness (2.59 ± 0.69) than in patients with isolated hyposalivation (2.84 ± 0.84). The BRS score was also negatively associated with the WPAI-Daily Impairment and OHIP-14 scores in patients with hyposalivation as well as with HADS-A (the seven items of HADS relating to the anxiety dimension) and HADS-D (the seven items of HADS relating to the depression dimension) in the whole group. The results suggest that psychological resilience in pSS may be affected by recurrent parotitis, the levels of anxiety and depression, as well as hyposalivation with ocular dryness.

本研究旨在评估原发性斯约格伦综合征(pSS)的主要唾液腺和泪腺受累是否会影响患者的心理适应能力。这项横断面研究包括 116 名原发性斯约格伦综合征患者。研究人员通过临床检查、唾液流速(SFR)测量、施尔默试验以及患者报告结果测量(PROMs)收集数据,如欧洲抗风湿联盟(EULAR)的斯约格伦综合征患者报告指数(ESSPRI)、简易复原力量表(BRS)、工作效率和活动障碍(WPAI)、口腔健康影响档案-14(OHIP-14)以及医院焦虑抑郁量表(HADS)。唾液分泌过少定义为非刺激性 SFR ≤0.1 mL/min。整组患者中,复发性腮腺炎患者的 BRS 评分(平均值 ± SD = 2.60 ± 0.69)(2.11 ± 0.37)低于非复发性腮腺炎患者(2.67 ± 0.86)。在症状状态不可接受(ESSPRI 评分≥ 5 分)的患者中,同时存在唾液分泌过少和眼部干燥的患者(2.59 ± 0.69)的 BRS 评分低于单独存在唾液分泌过少的患者(2.84 ± 0.84)。BRS评分与唾液分泌过少患者的WPAI-日常障碍和OHIP-14评分呈负相关,与全组患者的HADS-A(HADS中与焦虑维度相关的7个项目)和HADS-D(HADS中与抑郁维度相关的7个项目)也呈负相关。研究结果表明,复发性腮腺炎、焦虑和抑郁程度以及唾液分泌过少和眼部干燥可能会影响 pSS 患者的心理适应能力。
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引用次数: 0
Effect of propolis added to single-bottle adhesives on water permeation through the hybrid layer. 单瓶粘合剂中添加蜂胶对混合层透水性的影响。
IF 1.8 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-10-10 DOI: 10.1111/eos.13023
Lucineide Silva da Rocha, Daniela Ferreira de Oliveira, Cinthya Luna Veloso de Lima, Ticiano Gomes do Nascimento, Johnnatan Duarte de Freitas, Jeniffer Mclaine Duarte de Freitas, Isabel Cristina Celerino de Moraes Porto

Water treeing and water droplets are observed within adhesive layers and on the hybridized surface after bonding sound dentin using single-bottle etch-and-rinse adhesives, indicating permeability of the hybrid layer to water. The aim of this study was to assess the efficacy of dentin sealing by adhesives containing propolis by quantifying the area of water transudation from dentinal tubules after dentin hybridization. Brazilian red propolis was added to experimental adhesive and Single Bond (3M/ESPE) adhesive; experimental adhesive and Single Bond without propolis were used as controls. Under simulated pulp pressure, two layers of adhesive were applied to etched human dentin discs. Three minutes after light-curing, the hybridized dentin surface was replicated, and epoxy resin replicas were created to obtain scanning electron microscope images. Data were evaluated using ANOVA and Tukey's test. Single Bond containing propolis significantly decreased water permeation through the hybrid layer compared with the control group. Three minutes after polymerization, the experimental adhesive without propolis had formed a permeable hybrid layer. The addition of Brazilian red propolis significantly reduced surface water on hybridized dentin in a concentration-dependent manner. Two-step etch-and-rinse adhesives containing propolis were effective in reducing water permeation through the hybridized dentin surface.

使用单瓶蚀刻-冲洗粘合剂粘合健全牙本质后,在粘合剂层内和杂化表面可观察到水树化和水滴,这表明杂化层具有透水性。本研究的目的是通过量化牙本质杂交后牙本质小管的水渗出面积,评估含有蜂胶的粘合剂密封牙本质的功效。实验用粘合剂和 Single Bond(3M/ESPE)粘合剂中添加了巴西红蜂胶;实验用粘合剂和不含蜂胶的 Single Bond 用作对照组。在模拟牙髓压力下,将两层粘合剂涂在蚀刻的人类牙本质圆盘上。光固化三分钟后,复制杂化的牙本质表面,并制作环氧树脂复制品,以获得扫描电子显微镜图像。数据采用方差分析和 Tukey 检验进行评估。与对照组相比,含蜂胶的单一粘结剂可明显减少杂交层的透水性。聚合三分钟后,不含蜂胶的实验粘合剂已形成可渗透的混合层。添加巴西红蜂胶可显著减少杂化牙本质表面的水分,其减少程度与浓度有关。含有蜂胶的两步腐蚀-冲洗粘合剂可有效减少杂化牙本质表面的水分渗透。
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引用次数: 0
Three-dimensional finite element analysis of the impact of access cavity preparation on first molar fracture resistance: A scoping review. 三维有限元分析检修洞准备对第一磨牙抗折性的影响:范围综述。
IF 1.8 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-09-30 DOI: 10.1111/eos.13021
Chuang Zhou, Ruochen Pu, Bin Liu

Access cavity preparation represents the initial step in root canal treatment. Minimally invasive approaches have gained increasing attention and involve advancements in the traditional access cavity preparation. Simultaneously, the development of three-dimensional finite element analysis (3D-FEA) has provided a theoretical foundation for evaluating the merits and drawbacks of various access cavity preparations. Studies using static loading 3D-FEA have suggested that conservative access cavity preparation reduces the concentration of stress in the cervical region, thereby strengthening fracture resistance. However, the lack of support from clinical data raises concerns about the validity of this suggestion. Conversely, studies involving cyclic loading 3D-FEA and dynamic loading 3D-FEA have challenged the prevailing perspectives by taking into account additional factors such as filling materials, thus providing a more comprehensive understanding of the impact of access cavity preparation on fracture resistance. Existing research lacks a comprehensive comparison of the different 3D-FEA methods, and this review fills this gap by providing a systematic assessment of different 3D-FEA methods and their applications in access cavity preparation.

入路腔预备是根管治疗的第一步。微创方法日益受到关注,并在传统的通路洞预备中取得了进步。与此同时,三维有限元分析(3D-FEA)的发展为评估各种通路洞预备方法的优缺点提供了理论基础。使用静态加载三维有限元分析的研究表明,保守的入路腔准备可减少颈椎区域的应力集中,从而增强抗骨折能力。然而,由于缺乏临床数据的支持,人们对这一观点的有效性产生了担忧。相反,涉及循环加载 3D-FEA 和动态加载 3D-FEA 的研究通过考虑填充材料等额外因素,对普遍观点提出了挑战,从而更全面地了解了入路腔准备对抗骨折性的影响。现有研究缺乏对不同 3D-FEA 方法的全面比较,本综述通过对不同 3D-FEA 方法及其在通路空腔制备中的应用进行系统评估,填补了这一空白。
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引用次数: 0
Effects of sodium copper- and sodium iron-chlorophyllin primers on resin bonding to dentin 铜钠和铁钠叶绿素底漆对牙本质树脂粘合的影响
IF 1.8 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-09-24 DOI: 10.1111/eos.13017
Yohsuke Taira, Takafumi Egoshi, Kei Kaida, Shizuka Yamada

This study evaluated the effects of two chlorophyll derivatives, sodium copper chlorophyllin (Cu-Chl) and sodium iron chlorophyllin (Fe-Chl), on the bond strength between a self-curing luting agent (4-META/MMA-TBB resin) and dentin. Five aqueous primers containing 35% 2-hydroxyethylmethacrylate with 0.007% Cu-Chl, 0.07% Cu-Chl, 0.007% Fe-Chl, 0.07% Fe-Chl, or neither Cu-Chl nor Fe-Chl (no-Chl) were prepared. The extracted human dentin surfaces were etched with 10% phosphoric acid (10PA), primed, and bonded to a resin block using the 4-META/MMA-TBB resin. A conventional etching agent (10-3) and 10PA without primer (PA/no-primer) were used as controls. The microtensile bond strength was determined after 48 h. The arithmetic medians for 20 stick specimens were calculated and statistically analyzed using a nonparametric Steel-Dwass test (α = 0.05). The maximum bond strength was achieved in the 0.007% Cu-Chl group, followed by those in the 0.07% Cu-Chl, 0.07% Fe-Chl, 10-3, 0.007% Fe-Chl, no-Chl, and PA/no-primer groups. No significant difference was observed between 0.007% Fe-Chl, 0.07% Fe-Chl, and 10-3. The bond strength to dentin etched with 10PA was influenced by the type and concentration of the chlorophyll derivatives applied. Cu-Chl rather than Fe-Chl should be useful as a component of surface treatment agents for bonding 4-META/MMA-TBB resin to dentin.

本研究评估了两种叶绿素衍生物--叶绿素铜钠(Cu-Chl)和叶绿素铁钠(Fe-Chl)--对自固化粘接剂(4-META/MMA-TBB树脂)和牙本质之间粘接强度的影响。我们制备了五种水性底漆,分别含有 35% 的 2- 羟乙基甲基丙烯酸酯和 0.007% 的 Cu-Chl、0.07% 的 Cu-Chl、0.007% 的 Fe-Chl、0.07% 的 Fe-Chl,或者既没有 Cu-Chl,也没有 Fe-Chl(无 Chl)。用 10%磷酸(10PA)对拔出的人类牙本质表面进行蚀刻、打底,然后用 4-META/MMA-TBB 树脂将其粘结到树脂块上。常规蚀刻剂(10-3)和不含底剂的 10PA 作为对照。计算 20 个试样的算术中值,并使用非参数的 Steel-Dwass 检验(α = 0.05)进行统计分析。0.007% Cu-Chl 组的粘结强度最大,其次是 0.07% Cu-Chl、0.07% Fe-Chl、10-3、0.007% Fe-Chl、无 Chl 和 PA/无引物组。在 0.007% Fe-Chl、0.07% Fe-Chl 和 10-3 之间没有观察到明显的差异。用 10PA 蚀刻的牙本质的粘接强度受叶绿素衍生物的类型和浓度的影响。在将 4-META/MMA-TBB 树脂与牙本质粘合时,Cu-Chl 而不是 Fe-Chl 应作为表面处理剂的一种成分。
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引用次数: 0
Effect of interleukin-17A on inflammatory mediator production in interleukin-1β-stimulated human dental pulp fibroblasts 白细胞介素-17A 对白细胞介素-1β 刺激人牙髓成纤维细胞产生炎症介质的影响
IF 1.8 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-09-20 DOI: 10.1111/eos.13019
Tadashi Nakanishi, Katsuhiro Mieda, Hitomi Kuramoto, Daisuke Takegawa

In response to pro-inflammatory cytokines such as interleukin (IL)-1β, dental pulp fibroblasts produce various inflammatory mediators, including IL-6, IL-8, CC chemokine ligand 20 (CCL20), and CXC chemokine ligand 10 (CXCL10), leading to the progression of pulpitis. IL-17/IL-17A (IL-17A) is a pro-inflammatory cytokine secreted by T helper (Th) 17 cells following their recruitment to inflamed sites; however, the roles of IL-17A during pulpitis remain unclear. The purpose of this study was to investigate the effect of IL-17A on IL-6, IL-8, CCL20 and CXCL10 production by human dental pulp fibroblasts (HDPFs) in vitro. IL-17A at a concentration of 100 ng/ml induced the production of 10 times more IL-8 and 4 times more CXCL10, but not IL-6 and CCL20, compared to controls. Co-stimulation of HDPFs with IL-17A and IL-1β synergistically enhanced the production of IL-6, CCL20, IL-8 and CXCL10. IL-1β increased expression of IL-17 receptor/IL-17RA (IL-17R) on HDPFs. Moreover, the cell signal pathways of p38 mitogen-activated protein kinase (MAPK) and nuclear factor-κB (NF-κB) were more potently activated by simultaneous stimulation with IL-17A and IL-1β. These findings suggest that IL-17A participates in the progression of dental pulp inflammation through the enhanced production of inflammatory mediators in HDPFs.

为应对白细胞介素(IL)-1β 等促炎细胞因子,牙髓成纤维细胞会产生各种炎症介质,包括 IL-6、IL-8、CC 趋化因子配体 20(CCL20)和 CXC 趋化因子配体 10(CXCL10),从而导致牙髓炎的恶化。IL-17/IL-17A(IL-17A)是T辅助(Th)17细胞被招募到发炎部位后分泌的一种促炎细胞因子;然而,IL-17A在牙髓炎中的作用仍不清楚。本研究旨在探讨 IL-17A 对体外人牙髓成纤维细胞(HDPFs)产生 IL-6、IL-8、CCL20 和 CXCL10 的影响。与对照组相比,浓度为 100 ng/ml 的 IL-17A 诱导的 IL-8 和 CXCL10 的产生量分别增加了 10 倍和 4 倍,而 IL-6 和 CCL20 的产生量则没有增加。用IL-17A和IL-1β共同刺激HDPF可协同增强IL-6、CCL20、IL-8和CXCL10的产生。IL-1β 增加了 HDPFs 上 IL-17 受体/IL-17RA(IL-17R)的表达。此外,p38 丝裂原活化蛋白激酶(MAPK)和核因子-κB(NF-κB)等细胞信号通路在 IL-17A 和 IL-1β 的同时刺激下被更有效地激活。这些研究结果表明,IL-17A 通过增强 HDPFs 中炎症介质的产生参与了牙髓炎症的进展。
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引用次数: 0
Effect of peroxide-free and peroxide-based in-office bleaching on the surface and mechanical properties of CAD/CAM esthetic restorative materials 不含过氧化物和含过氧化物的诊室漂白对 CAD/CAM 美学修复材料表面和机械性能的影响
IF 1.8 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-09-13 DOI: 10.1111/eos.13016
Majed M. Alsarani, Aftab Ahmed Khan, Leonel S. J. Bautista, Hanan Alsunbul, Jukka P. Matinlinna

The study aimed to investigate the influence of H2O2-based and H2O2-free in-office bleaching on the surface and mechanical attributes of CAD/CAM composite blocks. CAD/CAM composite blocks from five different composite materials (CC1, CC2, CC3, CC4, and CC5) were randomly divided into two groups according to bleaching application (H2O2-based and H2O2-free). The surface topography, morphology, nanohardness, elastic modulus, flexural strength, and fracture toughness were measured. A paired and unpaired sample t-tests gauged the effect of pre- and post-bleaching on the substrates. The estimated mean differences (before-after bleaching) suggested an increase in surface roughness for two materials CC2 and CC4, and a significant decrease in nanohardness for material CC4 and in elastic modulus for materials CC2 and CC4 with H2O2-based bleaching, whereas H2O2-free bleaching resulted in changes compatible with no change in these properties. Flexural strength and fracture toughness showed no evidence of changes, irrespective of the bleaching gel used. Scanning electron microscopic analysis revealed erosive effects and micropore formation due to H2O2-based bleaching. H2O2-based bleaching deteriorates the surface of CAD/CAM composite materials while H2O2-free bleaching gel had an insignificant effect on both surface and bulk properties. The clinician should carefully evaluate the potential effects of H2O2-based bleaching on the surface properties of CAD/CAM composites.

该研究旨在探讨基于 H2O2 和不含 H2O2 的诊室漂白对 CAD/CAM 复合材料块表面和机械属性的影响。将五种不同复合材料(CC1、CC2、CC3、CC4 和 CC5)的 CAD/CAM 复合材料块按漂白应用(基于 H2O2 和不含 H2O2)随机分为两组。测量材料的表面形貌、形态、纳米硬度、弹性模量、抗弯强度和断裂韧性。通过配对和非配对样本 t 检验来衡量漂白前后对基底的影响。估计的平均差异(漂白前后)表明,CC2 和 CC4 两种材料的表面粗糙度增加了,CC4 材料的纳米硬度显著降低了,CC2 和 CC4 材料的弹性模量显著降低了,而不含 H2O2 的漂白则导致了与这些特性无变化相适应的变化。无论使用哪种漂白凝胶,弯曲强度和断裂韧性都没有发生变化。扫描电子显微镜分析表明,基于 H2O2 的漂白会产生侵蚀作用并形成微孔。基于 H2O2 的漂白会恶化 CAD/CAM 复合材料的表面,而不含 H2O2 的漂白凝胶对其表面和整体性能的影响都不大。临床医生应仔细评估 H2O2 漂白对 CAD/CAM 复合材料表面特性的潜在影响。
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引用次数: 0
Effect of blockage of Trem1 on the M1 polarization of macrophages in the regulation dental pulp inflammation 阻断 Trem1 对调控牙髓炎症中巨噬细胞 M1 极化的影响
IF 1.8 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-09-12 DOI: 10.1111/eos.13018
Ting-Ting Wang, Wen-Rui Jiang, Li Xu, Mei-Yun Zhou, Yong-Song Huang

Dental pulp inflammation is a common and significant factor related to poor dental prognosis. Current treatment strategies primarily concentrate on managing the inflammatory response, with specific targets for intervention still under investigation. Triggering receptors expressed on myeloid cells (TREMs) are a group of receptor molecules extensively present on myeloid cell surfaces, crucial in the regulation of inflammatory process. Our analysis of transcriptomic sequencing data from clinical pulp samples of dataset GSE77459 and animal models revealed up-regulation of Trem1 during pulpitis. Administration of the Trem1-blocking peptide LP17 led to lower (more than 1-fold) levels of several pro-inflammatory factors and inhibition of M1 macrophage polarization both in vivo and in vitro. This study of the expression patterns and functions of Trem1 in the development of dental pulp inflammation provides novel insights into the therapeutic strategies for clinical pulpitis.

牙髓炎症是导致牙科预后不良的常见重要因素。目前的治疗策略主要集中于控制炎症反应,具体的干预目标仍在研究之中。髓系细胞上表达的触发受体(TREMs)是一组广泛存在于髓系细胞表面的受体分子,对炎症过程的调控至关重要。我们对数据集 GSE77459 中的临床牙髓样本和动物模型的转录组测序数据进行了分析,发现牙髓炎期间 Trem1 上调。服用Trem1阻断肽LP17后,体内和体外几种促炎因子的水平都降低了(超过1倍),M1巨噬细胞的极化也受到了抑制。这项关于Trem1在牙髓炎症发展过程中的表达模式和功能的研究为临床牙髓炎的治疗策略提供了新的见解。
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引用次数: 0
Effect of combining aminomethacrylate and fluoride against erosive and abrasive challenges on enamel and dentin 结合使用氨基甲基丙烯酸酯和氟化物对珐琅质和牙本质的腐蚀性和磨蚀性挑战的影响。
IF 1.8 4区 医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2024-08-29 DOI: 10.1111/eos.13015
Marina Gullo Augusto, Luis Felipe Oliveira da Silva, Giovanna Lotto, Tamires Maria de Andrade Santos, Idalina Vieira Aoki, Carlos Rocha Gomes Torres, Tais Scaramucci, Alessandra Bühler Borges

This study evaluated the effect of solutions containing aminomethacrylate copolymer (AA) and sodium fluoride (F; 225 ppm F) or fluoride plus stannous chloride (FSn; 225 ppm F, 800 ppm Sn2+) against enamel and dentin erosion/abrasion. Solutions F, FSn, AA, F+AA, FSn+AA, and deionized water as negative control were tested. Bovine enamel and dentin specimens (n = 13/solution/substrate) underwent a set of erosion-abrasion cycles (0.3% citric acid [5 min, 4×/day], human saliva [1 h, 4×/day], brushing [15 s, 2×/day], and treatments [2 min, 2×/day]) for each of five days. Initial enamel erosion was evaluated using Knoop microhardness after the first and second acid challenge on day 1, and surface loss with profilometry after day 5. KOH-soluble fluoride was assessed. Data were analyzed with ANOVA/Tukey tests. The combination of fluoride and AA resulted in higher protection against enamel erosion, whereas this was not the case for the combination of AA and FSn. All treatments protected against enamel and dentin loss. The lowest surface loss values were observed with F+AA and FSn+AA. The polymer did not significantly influence the KOH-soluble fluoride formation on enamel/dentin specimens. The aminomethacrylate copolymer effectively enhanced the efficacy of sodium fluoride against initial erosion and improved the control of enamel and dentin wear of F and FSn solutions.

本研究评估了含有氨基甲基丙烯酸酯共聚物(AA)和氟化钠(F;225 ppm F-)或氟加氯化亚锡(FSn;225 ppm F-,800 ppm Sn2+)的溶液对牙釉质和牙本质侵蚀/磨损的影响。对溶液 F、FSn、AA、F+AA、FSn+AA 和作为阴性对照的去离子水进行了测试。牛珐琅质和牙本质样本(n = 13/溶液/基质)在五天内分别经历了一组侵蚀-磨损循环(0.3% 柠檬酸[5 分钟,4×/天]、人类唾液[1 小时,4×/天]、刷牙[15 秒,2×/天]和处理[2 分钟,2×/天])。在第 1 天的第一次和第二次酸挑战后,使用努氏显微硬度计对初始釉质侵蚀进行评估,在第 5 天后使用轮廓仪对表面损失进行评估。还对 KOH 溶性氟化物进行了评估。数据采用方差分析/Tukey 检验进行分析。氟化物和 AA 的组合能更有效地防止釉质侵蚀,而 AA 和 FSn 的组合则不然。所有处理方法都能防止珐琅质和牙本质流失。F+AA 和 FSn+AA 的表面损失值最低。聚合物对珐琅质/牙本质试样上 KOH 溶性氟化物的形成没有明显影响。氨基甲基丙烯酸酯共聚物有效增强了氟化钠对初始侵蚀的功效,并改善了 F 和 FSn 溶液对牙釉质和牙本质磨损的控制。
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European Journal of Oral Sciences
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