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The Effects of Selected Mouthwashes on the Surface Microhardness of a Single-shade Universal Resin Composite: In Vitro Study 选定漱口水对单色通用树脂复合材料表面显微硬度的影响:体外研究
IF 0.7 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2022-10-18 DOI: 10.1177/23202068221129020
L. Al-Saud, Lina M. Alolyet, Dhayah S. Alenezi
Aim: To investigate the effects of selected alcohol-free mouthwashes with different formulations (zinc-hydroxyapatite, hydrogen peroxide, and sodium fluoride) on the surface microhardness of a single-shade universal resin composite. Materials and Methods: Forty disc-shaped specimens (8 × 2 mm) from the universal resin composite (Omnichroma®), and a nano-hybrid composite (Tetric® N-Ceram) were prepared. After polymerization, baseline surface microhardness values were recorded using Vickers microhardness tester. The samples from each material were randomly assigned to 4 groups (n = 10) and immersed in 20 ml of the mouthwashes: Biorepair®, Listerine®, Colgate® Optic White, and distilled water (control). The samples were kept in the immersion solutions for 24 hours, and post-immersion microhardness values were recorded. Data were analyzed with one-way ANOVA and paired sample t-tests at p < .05. Results: Significant reduction in microhardness was observed in all resin composite groups after immersion in the mouthwashes compared to baseline values (p < .0001). The highest microhardness reduction in Omnichroma® group was observed after immersion in Colgate® Optic White; and Tetric® N-Ceram group after immersion in Listerine® mouthwash. For both materials, the least reduction in microhardness was observed after immersion in Biorepair®. Microhardness values for Omnichroma were significantly higher than Tetric® N-Ceram (p < .0001). However, Omnichroma exhibited a significantly greater reduction in microhardness after immersion in the tested mouthwashes. Conclusion: In vitro simulated use of the investigated mouthwashes negatively affected the surface microhardness of both tested resin composites. The observed effects were both mouthwash and material dependent.
目的:研究不同配方(锌-羟基磷灰石、过氧化氢和氟化钠)的无酒精漱口水对单色通用树脂复合材料表面显微硬度的影响。材料与方法:用通用树脂复合材料(Omnichroma®)和纳米复合材料(Tetric®N-Ceram)制备40个圆盘状样品(8 × 2mm)。聚合后,用维氏显微硬度计记录基线表面显微硬度值。每种材料的样本被随机分为4组(n = 10),分别浸泡在20 ml漱口水中:Biorepair®、Listerine®、高露洁®Optic White和蒸馏水(对照组)。样品在浸泡溶液中保存24小时,记录浸泡后的显微硬度值。数据分析采用单因素方差分析和配对样本t检验,p < 0.05。结果:与基线值相比,浸泡在漱口水中后,所有树脂复合组的显微硬度均显著降低(p < 0.0001)。在高露洁®Optic White浸泡后,观察到Omnichroma®组显微硬度降低幅度最大;和Tetric®N-Ceram组浸泡在李斯特林®漱口水中。对于这两种材料,浸泡在Biorepair®中后,观察到显微硬度的降低最小。Omnichroma显微硬度值显著高于Tetric®N-Ceram (p < 0.0001)。然而,浸泡在测试的漱口水中后,全无色体的显微硬度明显降低。结论:体外模拟使用所研究的漱口水对两种树脂复合材料的表面显微硬度均有负面影响。观察到的效果既依赖于漱口水,也依赖于物质。
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引用次数: 1
The Effect of Sintering Procedures on Fit and Color in Zirconia Crowns 烧结工艺对氧化锆冠贴合度和颜色的影响
IF 0.7 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2022-10-18 DOI: 10.1177/23202068221129025
Haydar Albayrak, R. Eraslan, Ozan Temizkanli, Bahar Sayin Sahin, Mustafa Ayata, Taygun Sezer
Purpose: The aim of this study was to examine the effects of various sintering procedures on the color parameters, marginal, and internal fit of zirconia crowns. Materials and Methods: Overall, 60 zirconia crowns were produced using 3 distinct zirconia blocks (Wieland Zenostar, Zirkonzahn Ice Translucent, and Zirkonzahn Prettau). For the sintering procedure of the crowns, six groups were created as follows: Wieland-Standard, Wieland-Speed, Ice-Standard, Ice-Speed, Prettau-Slow, and Prettau-Standard programs. The crowns were assigned into groups (n = 10 in each group). The color parameters, marginal fit, and internal fit of the crowns were evaluated. The normality of data distribution was evaluated with the Kolmogrov–Smirnov test. Two independent samples t-test and Mann–Whitney U test were used to compare the sintering groups. Results: Acceleration of sintering caused a significant change in the color parameters of the Wieland and Ice groups but not in the Prettau group. In the Wieland group, marginal (p = .047) and internal (p = .004) gap values of speed sintering were found to be significantly lower than those in standard sintering. In the Ice group, the marginal gap values of speed sintering were found to be significantly lower than those in standard sintering (p = .019). In the Prettau group, the marginal gap values of standard sintering were found to be significantly higher (p = .035) than those in slow sintering. Conclusions: It was concluded that the effects of sintering procedures on color parameters, and internal and marginal fit of zirconia crowns were clinically insignificant. Speed sintering can be recommended for zirconia restorations.
目的:研究不同的烧结工艺对氧化锆冠的颜色参数、边缘和内部配合的影响。材料和方法:总共使用3种不同的氧化锆块(Wieland Zenostar、Zirkonzahn Ice半透明和Zirkonzahn Prettau)制作了60个氧化锆冠。对于冠的烧结程序,分为六个组:挥舞-标准,挥舞-速度,冰-标准,冰-速度,prettau -慢,prettau -标准程序。牙冠被分成不同的组(每组10个)。评价冠的颜色参数、边缘拟合和内部拟合。采用Kolmogrov-Smirnov检验评价数据分布的正态性。采用两个独立样本t检验和Mann-Whitney U检验对烧结组进行比较。结果:加速烧结对Wieland组和Ice组的颜色参数有明显的影响,而对Prettau组没有影响。在Wieland组中,快速烧结的边缘间隙值(p = 0.047)和内部间隙值(p = 0.004)明显低于标准烧结。在冰组中,速度烧结的边际间隙值明显低于标准烧结(p = 0.019)。在Prettau组中,标准烧结的边缘间隙值明显高于慢速烧结组(p = 0.035)。结论:烧结工艺对氧化锆冠颜色参数、内缘配合度的影响均不显著。快速烧结可推荐用于氧化锆修复。
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引用次数: 1
The Effect of Additional Finishing and Polishing Sequences on Hardness and Roughness of Two Different Dental Composites: An In Vitro Study 额外抛光和抛光顺序对两种牙体复合材料硬度和粗糙度影响的体外研究
IF 0.7 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2022-09-28 DOI: 10.1177/23202068221121518
Kıvanç Dülger
Aim: The aim of this study was to evaluate the effect of additional finishing and polishing sequences on a new structural colored (Omnichroma) and a conventional dental composite (Estelite Sigma Quick). Materials and Method: Forty disk-shaped dental composite specimens were prepared from each dental composite and assigned to four groups in terms of additional finishing polishing sequences. Group 1: Mylar strip (control). Group 2: Abrasive disks. Group 3: After abrasive disks, application of a felt brush with abrasive paste. Group 4: After abrasive disks, application of a felt brush with abrasive paste. Then, a single-bottle adhesive was applied as a surface sealer. Hardness and surface roughness were measured using the Vickers hardness test and a profilometer, respectively. SEM images of one of each group were captured at 500x, 1500x, and 3500x magnifications. Two-way analysis of variance, Tukey HSD, and Shapiro–Wilk tests were used for the statistical analysis. Results: Mean hardness values differ in terms of finishing-polishing sequences (P < .001), dental composites (P < .001), and interaction of finishing-polishing sequences-dental composites (P < .001). Mean roughness values differ in terms of finishing-polishing (P = .002). The main effect of composites on roughness values was not found statistically significant (P = .990). Also, there is no difference between the mean roughness values in terms of the interactions of finishing-polishing and composites (P = .967). Conclusion: Finishing-polishing with abrasive disks and abrasive paste are important steps for these dental composites. However, the application of a single-bottle adhesive as a surface sealant on these composites decreases the hardness of the materials.
目的:本研究的目的是评估额外的精加工和抛光序列对新型结构彩色(全彩色)和传统牙科复合材料(Estelite Sigma Quick)的影响。材料和方法:从每种牙复合材料中制备40个圆盘状牙复合材料样品,并根据额外的抛光顺序分为四组。第一组:密拉条(对照)。第二组:磨盘。第三组:研磨盘后,用毛毡刷涂上研磨膏。第4组:研磨盘后,用毛毡刷涂上研磨膏。然后,应用单瓶粘合剂作为表面密封剂。硬度和表面粗糙度分别用维氏硬度试验和轮廓仪测量。在500倍、1500倍和3500倍的放大倍率下,捕获每组各一组的SEM图像。采用双向方差分析、Tukey HSD和Shapiro-Wilk检验进行统计分析。结果:平均硬度值在抛光-抛光顺序(P < 0.001),牙科复合材料(P < 0.001)以及抛光-抛光顺序-牙科复合材料的相互作用(P < 0.001)方面存在差异。平均粗糙度值在精加工抛光方面有所不同(P = 0.002)。复合材料对粗糙度值的主要影响没有统计学意义(P = .990)。此外,就精加工-抛光和复合材料的相互作用而言,平均粗糙度值之间没有差异(P = .967)。结论:磨盘和磨料膏抛光是修复口腔复合材料的重要步骤。然而,在这些复合材料上应用单瓶粘合剂作为表面密封剂会降低材料的硬度。
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引用次数: 0
Effect of Different Adhesive Strategies on the Microshear Bond Strength of Calcium-Silicate-Based Materials 不同粘结策略对硅酸钙基材料微剪切粘结强度的影响
IF 0.7 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2022-09-01 DOI: 10.1177/23202068221118979
A. Gürcan, Soner Şişmanoğlu, Görkem Sengez
Aim: To evaluate the microshear bond strength (µSBS) of mineral trioxide aggregate and Biodentine to various resin-based materials using different adhesive strategies. Materials and Methods: Three resin-based materials—a self-adhering resin composite with or without acid etching (Vertise flow; Kerr, Orange, CA, USA), a conventional flowable composite with a total-etch adhesive (Filtek Ultimate Flowable; 3M ESPE, St. Paul, MN, USA), and a flowable resin-modified glass ionomer cement (RMGIC) without any surface modification (Ionoseal; VOCO GmbH, Cuxhaven, Germany)—and two calcium-silicate-based materials—Biodentine and BIOfactor mineral trioxide aggregate (MTA)—were tested. A total of 100 cylindrical acrylic molds were prepared. Biodentine and BIOfactor MTA were prepared and placed into the central holes on the molds. Specimens were divided into two main groups according to materials and into five subgroups (n = 10). µSBS were evaluated using a µSBS testing device. The failure modes were examined under a stereomicroscope with magnification. They were categorized as adhesive, cohesive, or mixed. Data were analyzed using two-way analysis of variance (ANOVA) and Tukey test. The significance level was taken as α = 0.05. Results: It was observed that both calcium-silicate-based material type and resin-based material type influenced the µSBS significantly according to two-way ANOVA. Biodentine exhibited higher bond strength values than MTA. However, no statistically significant interaction was demonstrated between these factors (P = .396). The µSBS values of intermediate materials to Biodentine and MTA were listed from the lowest to the highest as follows: RMGIC < Acid Etch + RMGIC < SARC (self-adhering resin composite) < FC (flowable composite) < Acid Etch + SARC. Conclusion: Self-adhering composites can be used on calcium-silicate-based materials in vital pulp treatments because of their mechanical properties. Acid-etching ensures high µSBS values. Although the µSBS of Biodentine were higher than MTA according to this study’s results, there was no statistically significant difference in µSBS of FC and acid-etched SARC to MTA.
目的:研究三氧化二矿骨料和生物钛在不同粘接策略下与不同树脂基材料的微剪切粘接强度(µSBS)。材料和方法:三种树脂基材料——一种自粘树脂复合材料,有或没有酸蚀(垂直流动;Kerr, Orange, CA, USA),一种具有全蚀刻粘合剂的传统可流动复合材料(Filtek Ultimate flowable;3M ESPE, St. Paul, MN, USA),以及一种无需任何表面改性的可流动树脂改性玻璃离子水泥(RMGIC) (Ionoseal;VOCO GmbH, Cuxhaven, Germany)和两种基于硅酸钙的材料——biodentine和BIOfactor矿物三氧化物聚集体(MTA)——进行了测试。共制备了100个圆柱形亚克力模具。制备Biodentine和BIOfactor MTA并放置在模具的中心孔中。标本按材料分为两大组和5个亚组(n = 10)。使用µSBS测试装置评估µSBS。在体视显微镜下观察了失效模式。它们被分为粘接型、内聚型和混合型。数据分析采用双因素方差分析(ANOVA)和Tukey检验。显著性水平取α = 0.05。结果:通过双因素方差分析发现,硅酸钙基材料类型和树脂基材料类型对微SBS均有显著影响。与MTA相比,Biodentine具有更高的粘结强度。然而,这些因素之间没有统计学上显著的相互作用(P = 0.396)。中间材料对Biodentine和MTA的µSBS值由低到高依次为RMGIC < Acid Etch + RMGIC < SARC(自粘树脂复合材料)< FC(可流动复合材料)< Acid Etch + SARC。结论:自粘复合材料具有良好的力学性能,可用于硅酸钙基材料的重要牙髓治疗。酸蚀确保高µSBS值。虽然本研究结果显示Biodentine的µSBS高于MTA,但FC和酸蚀SARC的µSBS与MTA的差异无统计学意义。
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引用次数: 0
Mechanical, Chemical, and Biological Properties of 3D-Printed Abutments: A Systematic Review 3d打印基台的机械、化学和生物特性:系统综述
IF 0.7 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2022-08-22 DOI: 10.1177/23202068221099772
Murilo Campos, T. T. Oliveira, A. Botelho, A. Reis
Aim: A systematic review of the methods of 3D printing and the materials used so far for the manufacture of abutments was performed to evaluate whether their clinical use is indicated through the mechanical, chemical, and biological analyses carried out. Materials and Methods: An electronic search conducted by three independent reviewers was carried out in the PubMed, Web of Science, Cochrane Library, Science Direct, and Lilac databases. The inclusion criterion was researching articles in English that contained as subject the manufacturing of abutments through 3D printing/additive manufacturing. Any meta-analyses, reviews, book chapters, abstracts, letters, conferences papers, and studies without abutments printed were excluded. Results: We found 780 references, which after applying the exclusion criteria resulted in the final inclusion of seven articles for review. The studies had a high heterogeneity, showing different materials and methodologies to manufacture abutments, which makes a comparison between them difficult, and for this reason it was not possible to carry out a meta-analysis with the data found. Conclusions: Even with the limitations found in the present research, it is possible to conclude that printed abutments have adequate mechanical, chemical, and biological properties that can indicate their clinical use. 3D printing presents high accuracy and speed and can produce customized abutments according to each case.
目的:对3D打印方法和迄今为止用于制造基台的材料进行系统回顾,通过进行机械、化学和生物学分析来评估其临床应用是否合适。材料和方法:由三位独立审稿人在PubMed、Web of Science、Cochrane Library、Science Direct和Lilac数据库中进行电子检索。纳入标准是包含通过3D打印/增材制造制造基台的主题的英文研究文章。所有meta分析、综述、书籍章节、摘要、信函、会议论文和未打印基台的研究均被排除在外。结果:我们发现了780篇文献,应用排除标准后最终纳入了7篇文献。这些研究具有高度的异质性,显示了不同的材料和方法来制造基台,这使得它们之间的比较变得困难,因此不可能对发现的数据进行荟萃分析。结论:即使在目前的研究中发现的局限性,也可以得出结论,打印基台具有足够的机械,化学和生物学特性,可以表明其临床应用。3D打印精度高,速度快,可根据不同情况定制基台。
{"title":"Mechanical, Chemical, and Biological Properties of 3D-Printed Abutments: A Systematic Review","authors":"Murilo Campos, T. T. Oliveira, A. Botelho, A. Reis","doi":"10.1177/23202068221099772","DOIUrl":"https://doi.org/10.1177/23202068221099772","url":null,"abstract":"Aim: A systematic review of the methods of 3D printing and the materials used so far for the manufacture of abutments was performed to evaluate whether their clinical use is indicated through the mechanical, chemical, and biological analyses carried out. Materials and Methods: An electronic search conducted by three independent reviewers was carried out in the PubMed, Web of Science, Cochrane Library, Science Direct, and Lilac databases. The inclusion criterion was researching articles in English that contained as subject the manufacturing of abutments through 3D printing/additive manufacturing. Any meta-analyses, reviews, book chapters, abstracts, letters, conferences papers, and studies without abutments printed were excluded. Results: We found 780 references, which after applying the exclusion criteria resulted in the final inclusion of seven articles for review. The studies had a high heterogeneity, showing different materials and methodologies to manufacture abutments, which makes a comparison between them difficult, and for this reason it was not possible to carry out a meta-analysis with the data found. Conclusions: Even with the limitations found in the present research, it is possible to conclude that printed abutments have adequate mechanical, chemical, and biological properties that can indicate their clinical use. 3D printing presents high accuracy and speed and can produce customized abutments according to each case.","PeriodicalId":43017,"journal":{"name":"Journal of Advanced Oral Research","volume":"29 1","pages":"167 - 175"},"PeriodicalIF":0.7,"publicationDate":"2022-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74015653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimation of Salivary Neopterin Levels in Aggressive and Chronic Periodontitis After Nonsurgical Periodontal Therapy: A Cohort Study 侵袭性和慢性牙周炎非手术治疗后唾液新蝶呤水平的评估:一项队列研究
IF 0.7 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2022-08-21 DOI: 10.1177/23202068221116749
S. N. Gottumukkala, Chaitanya A., Ramesh Konathala Santhosh Venkata, Gautami. S. Penmetsa, Suneetha Koneru, Swetha Pasupuleti
Aim: Neopterin is a marker associated with cell-mediated immunity produced by interferon-Ɣ-stimulated macrophages. The levels of neopterin in body fluids are elevated in infections, autoimmune diseases, malignancies, and allograft rejections. Recently, it was shown to be associated with the initiation and progression of periodontal disease. This investigation was designed to explore the use of salivary neopterin in predicting the outcome of nonsurgical periodontal therapy (NSPT) in aggressive and chronic periodontitis patients. Materials and Methods: This case-control study with stratified sampling comprised 45 subjects divided into three groups: a control group of 15 periodontally healthy participants, a test Group A of 15 participants with chronic periodontitis, and a test Group B of 15 participants with aggressive periodontitis. Periodontal parameters, including plaque index (PI), gingival index (GI), probing depth (PD), and clinical attachment level (CAL), were recorded at baseline and three months after scaling and root planing (SRP). An enzyme-linked immunosorbent assay (ELISA) analysis was performed to measure neopterin levels in saliva in study groups before and after SRP. Kruskal–Wallis analysis of variance and Mann–Whitney U tests were done for intra- and intergroup comparisons. The correlation between salivary neopterin levels with clinical parameters was done by Karl Pearson’s correlation coefficient. Results: Baseline salivary neopterin levels were least in the control group (5 62 nmol/L), higher in test Group A (9.30 nmol/L), and highest in test Group B (9.76 nmol/L). Three months after SRP, there was a significant reduction in all the clinical parameters, and the reduction in mean salivary neopterin levels were 2.79 and 2.57 in test Group A and test Group B, respectively; the difference was not statistically significant. Conclusion: Salivary neopterin levels have the potential to be utilized as a diagnostic tool for detecting the presence, activity of the disease, and the course of the lesions. It cannot, however, be utilized to distinguish between chronic and aggressive periodontitis.
目的:Neopterin是一种与干扰素-Ɣ-stimulated巨噬细胞产生的细胞介导免疫相关的标志物。体液中新蝶呤的水平在感染、自身免疫性疾病、恶性肿瘤和同种异体移植排斥反应中升高。最近,它被证明与牙周病的发生和发展有关。本研究旨在探讨唾液新蝶呤在预测侵袭性和慢性牙周炎患者非手术牙周治疗(NSPT)结果中的应用。材料和方法:本分层抽样的病例对照研究将45名受试者分为三组:对照组15名牙周健康者,a组15名慢性牙周炎患者,B组15名侵袭性牙周炎患者。牙周参数,包括菌斑指数(PI)、牙龈指数(GI)、探诊深度(PD)和临床附着水平(CAL),在基线和刮治和根刨(SRP)后3个月进行记录。采用酶联免疫吸附法(ELISA)分析各组患者SRP前后唾液中的新蝶呤水平。组内和组间比较采用Kruskal-Wallis方差分析和Mann-Whitney U检验。唾液新蝶呤水平与临床参数的相关性采用Karl Pearson相关系数。结果:对照组唾液新蝶呤基线水平最低(5 62 nmol/L),试验A组最高(9.30 nmol/L),试验B组最高(9.76 nmol/L)。SRP后3个月,各临床指标均显著降低,a组和B组平均唾液新蝶呤水平分别降低2.79和2.57;差异无统计学意义。结论:唾液新蝶呤水平有可能被用作检测疾病存在、活动和病变过程的诊断工具。然而,它不能用来区分慢性牙周炎和侵袭性牙周炎。
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引用次数: 0
A Systematic Review and Meta-Analysis of the Success of Resin Composite Restorations 树脂复合修复体成功的系统回顾和荟萃分析
IF 0.7 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2022-08-21 DOI: 10.1177/23202068221114979
T. Kölüş, A. Uçar
Aim: This review examines the studies on resin composites within the past decade and evaluates the materials’ application methods and success through Fédération Dentaire Internationale (FDI) scores. Materials and Methods: Search results from three databases (a total of 3295 studies) were transferred to Mendeley Desktop (Mendeley, London, UK) software and deduplicated (2638 studies). Eight studies were included in this meta-analysis after scanning the title, abstract, and full-text screening. Risk of bias analysis was performed using the Cochrane Handbook tool. Shapiro–Wilk, Kolmogorov–Smirnov, Kruskal–Wallis, and post hoc Tamhane’s T2 were used for statistical analysis. Results: Conventional composite’s surface staining FDI score was higher than flowable and silorane composites (no difference between these two). Also, conventional composite has the highest score in terms of staining. Conventional composite + two-step self-etch adhesive and bulk fill composite + two-step self-etch adhesive have lower FDI scores in marginal staining. In noncarious cervical lesions (NCCL), conventional composite + two-step total-etch adhesive has a higher score than flowable composite + two-step self-etch adhesive. Flowable composite + two-step self-etch adhesive and conventional composite + single-step self-etch adhesive have the highest FDI scores for marginal adaptation (no statistical difference between them). Conventional composite + two-step self-etch adhesive and bulk fill composite + two-step self-etch have the lowest scores (no statistical difference between them). For recurrence of caries, all groups have Score 1, the best score, and there is no significant difference between them. Conclusions: Each restorative material and adhesive system has different advantages, and the practitioner must choose the most appropriate.
目的:综述了近十年来树脂复合材料的研究进展,并通过国际牙科医生协会(FDI)评分对树脂复合材料的应用方法和成功进行了评价。材料和方法:将三个数据库(共3295篇研究)的检索结果转移到Mendeley Desktop (Mendeley, London, UK)软件中并删除重复数据(2638篇研究)。在扫描标题、摘要和全文筛选后,本meta分析纳入了8项研究。使用Cochrane手册工具进行偏倚风险分析。采用Shapiro-Wilk、Kolmogorov-Smirnov、Kruskal-Wallis、post hoc Tamhane’s T2进行统计分析。结果:常规复合材料表面染色FDI评分高于可流动复合材料和硅烷复合材料(两者无差异)。此外,传统复合材料在染色方面得分最高。常规复合材料+两步自蚀刻胶和散装填充复合材料+两步自蚀刻胶的边缘染色FDI得分较低。在宫颈非龋齿病变(NCCL)中,常规复合+两步全蚀刻粘接剂评分高于流动复合+两步自蚀刻粘接剂。流动复合材料+两步自蚀刻胶与常规复合材料+单步自蚀刻胶的FDI边际适应性得分最高(两者之间无统计学差异)。常规复合材料+两步自蚀刻胶与散装填充复合材料+两步自蚀刻胶得分最低(两者之间无统计学差异)。在龋病复发方面,各组得分均为最高分1分,两组间差异无统计学意义。结论:每一种修复材料和粘接剂体系都有不同的优势,医生必须选择最合适的。
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引用次数: 0
Variation in the Use of Basic Behavioral Management Techniques in General and Pediatric Dental Practice: A Cross-sectional Study 在普通和儿童牙科实践中使用基本行为管理技术的差异:一项横断面研究
IF 0.7 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2022-08-05 DOI: 10.1177/23202068221103983
Osama Felemban, Ruba A. Baamer, Zuhor Bukhari, K. Baghlaf, M. Aldajani, Ohoud Sijini
Aim: Basic guidance on nonpharmacological behavioral management techniques in dental practice is fundamental for the effective treatment of pediatric patients. The aim of this study was to compare the use of basic nonpharmacological behavior guidance in general and specialist pediatric dentists and to evaluate the perceived difference in their effectiveness across hospital clinics in Jeddah, Saudi Arabia. Material and Methods: A cross-sectional study with a nonpurposive sample of 179 registered general and pediatric dentists in the Saudi Dental Society based in Jeddah in 2019. Participants were contacted and asked to complete a validated questionnaire. The first section of the questionnaire comprised questions on demographic data and the second section investigated the frequency of the use of various behavioral management techniques. Descriptive statistics (frequency and percentages) and inferential statistics were used. Results: A total of 109 participants completed the survey; 52 were general dentists and 57 were pediatric dentists. The techniques tell–show–do (P = .018), positive reinforcement (P = .004), distraction (P = .001), and nonverbal communication (P = .001) were used more frequently by pediatric dentists than general dentists, and there were statistically significant differences. Also, pediatric dentists reported that the techniques tell–show–do (P = 0.035), positive reinforcement (P = .026), distraction (P = .011), and nonverbal communication (P = .007) were highly effective more often than general dentists did. Conclusions: Statistically significant differences were found between general and pediatric dentists in the use of basic behavioral management techniques. Broadly, general dentists used fewer behavior guidance techniques compared to pediatric dentists. More pediatric dentists reported that behavioral management techniques were effective in comparison to general dentists.
目的:牙科临床非药物行为管理技术的基本指导是有效治疗儿科患者的基础。本研究的目的是比较普通儿科牙医和专科儿科牙医使用基本非药物行为指导的情况,并评估沙特阿拉伯吉达各医院诊所在其有效性方面的感知差异。材料和方法:2019年在吉达的沙特牙科协会对179名注册普通牙医和儿科牙医进行了无目的样本横断面研究。参与者被联系并被要求完成一份有效的问卷。调查表的第一部分包括关于人口统计数据的问题,第二部分调查了使用各种行为管理技术的频率。采用描述性统计(频率和百分比)和推断性统计。结果:共109名参与者完成调查;52名是普通牙医,57名是儿科牙医。儿童牙医使用“告诉-展示-做”(P = 0.018)、“正强化”(P = 0.004)、“分心”(P = 0.001)和非语言交流(P = 0.001)的频率高于普通牙医,差异有统计学意义。此外,儿科牙医报告说,告诉-展示-做(P = 0.035)、积极强化(P = 0.026)、分散注意力(P = 0.011)和非语言交流(P = 0.07)等技术比普通牙医更有效。结论:普通牙医和儿科牙医在使用基本行为管理技术方面存在统计学上的显著差异。总的来说,与儿科牙医相比,普通牙医使用的行为指导技巧更少。更多的儿科牙医报告说,与普通牙医相比,行为管理技术更有效。
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引用次数: 1
Color Change Evaluation of Three Universal Resin Composites after Storage in Water: An In Vitro Study 三种通用树脂复合材料在水中保存后的颜色变化评价:体外研究
IF 0.7 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2022-08-04 DOI: 10.1177/23202068221099100
Sinem Akgül, Ceyda Gündoğdu
Aim: The aim of this in vitro study was to evaluate the color changes of three different universal resin composites after immersion in distilled water for one month. Materials and Methods: Omnichroma, Estelite Σ Quick, and Filtek Universal Restorative were investigated. Ten disk shaped specimens (6 mm diameter, 2 mm thickness) were prepared according to the manufacturers’ instructions for each material. After polishing, initial color measurements were taken followed by individual storage of the specimens in distilled water at 37 °C for one month when color measurements were repeated. The change in the color of each resin composites (ΔE00) was calculated with a digital method, using the CIEDE2000 color difference formula. The data were analyzed using one-way ANOVA followed by Tukey post-hoc test (P < .05). Results: All resin composites exhibited acceptable color change after one month. Omnichroma exhibited the highest color change (2.26 ± 0.48) value while Filtek Universal Restorative showed the lowest (1.14 ± 0.38) value. All color parameters influenced the ΔE00 values in all groups except Filtek Universal for ΔL* and Δb values. Conclusion: When performing composite resin restorations, especially for esthetic purposes, polymerization may lead to change in the color of restorative material over time, but it should be considered whether this is within acceptable limits.
目的:研究三种不同的通用树脂复合材料在蒸馏水中浸泡一个月后的颜色变化。材料和方法:研究了全彩色、Estelite Σ Quick和Filtek Universal Restorative。每种材料按厂家说明制作10个圆盘形试样(直径6 mm,厚度2 mm)。抛光后,进行初始颜色测量,然后将样品单独存放在37°C蒸馏水中一个月,重复进行颜色测量。使用CIEDE2000色差公式,通过数字方法计算每种树脂复合材料的颜色变化(ΔE00)。数据分析采用单因素方差分析和Tukey事后检验(P < 0.05)。结果:1个月后,所有树脂复合材料的颜色变化均可接受。全彩组的颜色变化值最高(2.26±0.48),Filtek Universal Restorative组的颜色变化值最低(1.14±0.38)。除Filtek Universal的ΔL*和Δb值外,所有颜色参数都影响所有组的ΔE00值。结论:在进行复合树脂修复体时,特别是出于美观目的,聚合可能会导致修复材料随着时间的推移而发生颜色变化,但应考虑这是否在可接受的范围内。
{"title":"Color Change Evaluation of Three Universal Resin Composites after Storage in Water: An In Vitro Study","authors":"Sinem Akgül, Ceyda Gündoğdu","doi":"10.1177/23202068221099100","DOIUrl":"https://doi.org/10.1177/23202068221099100","url":null,"abstract":"Aim: The aim of this in vitro study was to evaluate the color changes of three different universal resin composites after immersion in distilled water for one month. Materials and Methods: Omnichroma, Estelite Σ Quick, and Filtek Universal Restorative were investigated. Ten disk shaped specimens (6 mm diameter, 2 mm thickness) were prepared according to the manufacturers’ instructions for each material. After polishing, initial color measurements were taken followed by individual storage of the specimens in distilled water at 37 °C for one month when color measurements were repeated. The change in the color of each resin composites (ΔE00) was calculated with a digital method, using the CIEDE2000 color difference formula. The data were analyzed using one-way ANOVA followed by Tukey post-hoc test (P < .05). Results: All resin composites exhibited acceptable color change after one month. Omnichroma exhibited the highest color change (2.26 ± 0.48) value while Filtek Universal Restorative showed the lowest (1.14 ± 0.38) value. All color parameters influenced the ΔE00 values in all groups except Filtek Universal for ΔL* and Δb values. Conclusion: When performing composite resin restorations, especially for esthetic purposes, polymerization may lead to change in the color of restorative material over time, but it should be considered whether this is within acceptable limits.","PeriodicalId":43017,"journal":{"name":"Journal of Advanced Oral Research","volume":"100 1","pages":"176 - 182"},"PeriodicalIF":0.7,"publicationDate":"2022-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85792554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Comparison of the Marginal and Internal Discrepancy of Metal-Ceramic Restorations Produced by Milling for Soft Metal, Direct Metal Laser Sintering and Casting Methods: An In Vitro Study 软金属铣削、直接金属激光烧结和铸造金属陶瓷修复体的边缘和内部差异比较:体外研究
IF 0.7 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2022-07-11 DOI: 10.1177/23202068221103980
Nazli Aydin, Orhun Ekren, E. Koçak, Y. Uçar
Aim: To evaluate the effect of ceramic firing cycles on the internal and marginal discrepancy of restorations fabricated using conventional lost wax casting (LW), direct metal laser sintering (DMLS), and milling for soft metal (MS). Materials and Methods: A total of 45 restorations were produced by LW, DMLS, and MS methods (n = 15), according to the digital impression on the metal die representing the prepared first molar. The internal discrepancy (ID) was measured through the silicon weight method and the marginal discrepancy (MD) was measured using a light microscope. ID and MD measurements were repeated following the metal manufacturing, ceramic application, and glazing. Statistical analyses were conducted by means of two-way analysis of variance and Tukey-HSD (α = 0.05) tests. Results: Statistically significant differences were found between the fabrication methods (P ≤ 0.001) both for MD and ID. The mean MD values of the restorations were 31.4 ± 13.8 µm for MS, 20.8 ± 14.4 µm for LW, and 7.3 ± 6 µm for DMLS. A statistically significant increase was observed in the mean MD values of metal frameworks (P ≤ 0.001) following ceramic and glaze applications. However, no statistically significant difference was found between the ceramic and the glaze applied stages (P = .072). The mean ID values were 37 ± 5.7 mg for LW, 28 ± 6.1 mg for DMLS, and 21.6 ± 7.3 mg for MS. Unlike the manufacturing method, ceramic firing cycles had no effects on the ID (P > 0.05). Conclusion: MS had the highest mean MD, but it had the lowest ID. The ceramic firing had a significantly negative effect only on MD.
目的:评价陶瓷烧成周期对传统失蜡铸造(LW)、直接金属激光烧结(DMLS)和软金属铣削(MS)修复体内部和边缘差异的影响。材料和方法:根据金属模具上代表制备的第一磨牙的数字印模,采用LW, DMLS和MS方法共生产45个修复体(n = 15)。用硅重量法测量了内部差异(ID),用光学显微镜测量了边缘差异(MD)。在金属制造、陶瓷应用和上釉之后,重复进行ID和MD测量。采用双向方差分析和Tukey-HSD (α = 0.05)检验进行统计学分析。结果:MD和ID的制作方法差异有统计学意义(P≤0.001)。MS、LW和DMLS修复体的平均MD值分别为31.4±13.8µm、20.8±14.4µm和7.3±6µm。在陶瓷和釉料应用后,观察到金属框架的平均MD值有统计学意义上的显著增加(P≤0.001)。然而,陶瓷和釉面应用阶段之间没有统计学上的显著差异(P = 0.072)。LW的平均ID值为37±5.7 mg, DMLS的平均ID值为28±6.1 mg, ms的平均ID值为21.6±7.3 mg,与制造方法不同,陶瓷烧制周期对ID没有影响(P > 0.05)。结论:MS的平均MD最高,而ID最低。陶瓷烧制仅对MD有显著的负向影响。
{"title":"Comparison of the Marginal and Internal Discrepancy of Metal-Ceramic Restorations Produced by Milling for Soft Metal, Direct Metal Laser Sintering and Casting Methods: An In Vitro Study","authors":"Nazli Aydin, Orhun Ekren, E. Koçak, Y. Uçar","doi":"10.1177/23202068221103980","DOIUrl":"https://doi.org/10.1177/23202068221103980","url":null,"abstract":"Aim: To evaluate the effect of ceramic firing cycles on the internal and marginal discrepancy of restorations fabricated using conventional lost wax casting (LW), direct metal laser sintering (DMLS), and milling for soft metal (MS). Materials and Methods: A total of 45 restorations were produced by LW, DMLS, and MS methods (n = 15), according to the digital impression on the metal die representing the prepared first molar. The internal discrepancy (ID) was measured through the silicon weight method and the marginal discrepancy (MD) was measured using a light microscope. ID and MD measurements were repeated following the metal manufacturing, ceramic application, and glazing. Statistical analyses were conducted by means of two-way analysis of variance and Tukey-HSD (α = 0.05) tests. Results: Statistically significant differences were found between the fabrication methods (P ≤ 0.001) both for MD and ID. The mean MD values of the restorations were 31.4 ± 13.8 µm for MS, 20.8 ± 14.4 µm for LW, and 7.3 ± 6 µm for DMLS. A statistically significant increase was observed in the mean MD values of metal frameworks (P ≤ 0.001) following ceramic and glaze applications. However, no statistically significant difference was found between the ceramic and the glaze applied stages (P = .072). The mean ID values were 37 ± 5.7 mg for LW, 28 ± 6.1 mg for DMLS, and 21.6 ± 7.3 mg for MS. Unlike the manufacturing method, ceramic firing cycles had no effects on the ID (P > 0.05). Conclusion: MS had the highest mean MD, but it had the lowest ID. The ceramic firing had a significantly negative effect only on MD.","PeriodicalId":43017,"journal":{"name":"Journal of Advanced Oral Research","volume":"104 1","pages":"183 - 190"},"PeriodicalIF":0.7,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86745349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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Journal of Advanced Oral Research
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