The International journal of prosthodontics最新文献

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The Effect of Denture Cleansers on the Surface Roughness of Heat-Polymerized Denture Base Resins Polished by Three Different Techniques. 义齿清洁剂对三种不同工艺抛光热聚合义齿基托树脂表面粗糙度的影响。
The International journal of prosthodontics Pub Date : 2025-05-19 DOI: 10.11607/ijp.9294
Konstantinos Chatzivasileiou, Savvas N Kamalakidis, Argirios L Pissiotis, Eleni Kotsiomiti
{"title":"The Effect of Denture Cleansers on the Surface Roughness of Heat-Polymerized Denture Base Resins Polished by Three Different Techniques.","authors":"Konstantinos Chatzivasileiou, Savvas N Kamalakidis, Argirios L Pissiotis, Eleni Kotsiomiti","doi":"10.11607/ijp.9294","DOIUrl":"https://doi.org/10.11607/ijp.9294","url":null,"abstract":"<p><strong>Purpose: </strong>Removable complete dentures function in an environment colonized by numerous microorganisms which attach to hard, non-shedding surfaces leading to various diseases, such as Denture-related stomatitis. The purpose of the study was to evaluate the combined effect of different polishing protocols and different denture cleansers on the surface roughness of 3 heat-polymerized polymethyl methacrylate (PMMA) denture base materials.</p><p><strong>Materials and methods: </strong>The 216 specimens were fabricated from 3 commercially available heat-polymerized denture base acrylic resins. Specimens of each resin were divided in 3 groups, each receiving one of 3 different surface treatments (laboratory, chairside, and carbide bur). Specimens of each group were further divided into 3 sub-groups which were immersed in either distilled water or each of the tested denture cleansers for 15 minutes. A year's cycle of cleansers use was simulated. Surface roughness was measured using an optical profilometer.</p><p><strong>Results: </strong>Statistical analysis of the data revealed that surface roughness was influenced by the type of acrylic resin, the polishing method employed but not by the immersion in denture cleansers. There was a statistically significant interaction between levels of immersion solution and material and a significant two-way interaction between level of surface polishing and material.</p><p><strong>Conclusion: </strong>Within the limitations of this study, it was concluded that immersion in the tested denture cleansers did not alter on average the surface roughness values of the tested materials, irrespective of the polishing procedure, after a simulated period of 365 days. Thus, they can be safely used as a method of removable denture hygiene.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-18"},"PeriodicalIF":0.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144103472","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
A Three-Dimensional Analysis of the Influence of Palatal Vault Depth on Digitization Accuracy of Partially Dentate Arches. 腭顶深度对部分齿状弓数字化精度影响的三维分析。
The International journal of prosthodontics Pub Date : 2025-05-19 DOI: 10.11607/ijp.9353
Enas Elhamy Negm, Mangala Patel, Paul Ryan
{"title":"A Three-Dimensional Analysis of the Influence of Palatal Vault Depth on Digitization Accuracy of Partially Dentate Arches.","authors":"Enas Elhamy Negm, Mangala Patel, Paul Ryan","doi":"10.11607/ijp.9353","DOIUrl":"https://doi.org/10.11607/ijp.9353","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the impact of palatal vault depth on the accuracy of scans obtained using three digitization techniques for partially dentate arches through three-dimensional (3D) analysis.</p><p><strong>Materials and methods: </strong>Four maxillary Kennedy class II resin casts with varying palatal vault depths (flat: 20.4°, shallow: 26.1°, medium: 40.7°, deep: 58.8°) were digitized using three techniques: direct (intraoral scanner), indirect impression digitization, and indirect cast digitization. Each cast was scanned five times per technique, producing 60 scans. The scanned files were analyzed for trueness and precision using a digital metrology program, with root mean square (RMS) deviations assessed via color maps. Data were analyzed using two way ANOVA and Tukey HSD test (α = .05).</p><p><strong>Results: </strong>Direct digitization showed larger palatal deviations compared to indirect methods. The deep vault exhibited the lowest trueness (53.3 ± 7.4 µm) and precision (50.7 ± 6.6 µm) when digitized directly (P < .001). Indirect impression digitization produced the lowest trueness (35.8 ± 7.2 µm) and precision (31.5 ± 3.1 µm) for the medium vault. Indirect cast digitization had the lowest trueness (23.1 ± 3.4 µm) for the medium vault and the lowest precision (31.3 ± 3.2 µm) for the deep vault (P < .001).</p><p><strong>Conclusion: </strong>Digitization accuracy (trueness and precision) was significantly influenced by vault depth and the interaction between digitization technique and depth (P < .001). Direct digitization had the highest accuracy for the medium vault, whereas indirect techniques provided superior accuracy for other vault depths. The deep vault showed reduced accuracy with both direct and indirect digitization methods.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-28"},"PeriodicalIF":0.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144103464","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
Modifying Digital Occlusal Spacer Effect on the Marginal Gap of Zirconia-reinforced Lithium Silicate Crowns: In-Vitro Scanning Electron Microscopy Evaluation. 改良数字咬合间隔器对氧化锆增强硅酸锂冠边缘间隙的影响:体外扫描电镜评价。
The International journal of prosthodontics Pub Date : 2025-05-12 DOI: 10.11607/ijp.9188
Gil Ben-Izhack, Diva Lugassy, Shahd Bishara, Omer Koton, Leon Eliasaf, Joseph Nissan, Asaf Shely
{"title":"Modifying Digital Occlusal Spacer Effect on the Marginal Gap of Zirconia-reinforced Lithium Silicate Crowns: In-Vitro Scanning Electron Microscopy Evaluation.","authors":"Gil Ben-Izhack, Diva Lugassy, Shahd Bishara, Omer Koton, Leon Eliasaf, Joseph Nissan, Asaf Shely","doi":"10.11607/ijp.9188","DOIUrl":"https://doi.org/10.11607/ijp.9188","url":null,"abstract":"<p><strong>Purpose: </strong>the study objective was to evaluate the effect of modifying digital occlusal spacers on the marginal gap of full monolithic zirconia-reinforced lithium silicate crowns by using 4- axis machine.</p><p><strong>Materials and methods: </strong>Forty-five acrylic teeth with preparation for full crowns were divided into three groups with different occlusal digital spacers (60,90,120 μm). All forty-five abutments were scanned by an intra-oral scanner and a 4-axis machine grinned zirconia reinforced lithium silicate crowns. Each crown was cemented to the abutment by using universal resin cement and for each unit (crown and abutment) a scanning electronic microscope was used to assess the marginal gap. For comparing the marginal gap between the three groups a kolmogorov-smirnov test was performed on the study variables indicated a normal distribution (p>0.05) followed by a one-way ANOVA with post-hoc Bonferroni test (α=.05).</p><p><strong>Results: </strong>The total mean marginal gap for 120 µm (101.38 ±17.94 µm) occlusal spacer was found significantly higher compared to the 90 µm (72.84 ±27.21 µm) and 60 µm (60.16 ± 29.34 µm) (p<.05). There was no significant difference between the 90 μm (72.84 ±27.21 µm) and 60 μm (60.16 ± 29.34 µm) groups (p=0.533).</p><p><strong>Conclusions: </strong>Clinically acceptable marginal gap (<120 µm) was obtained for all three occlusal spacers (60,90,120). As the digital occlusal spacer reduces the marginal gap reduces as well. Occlusal spacer of 120 µm showed a significantly higher marginal gap compared to 90 and 60 µm. The digital occlusal spacer which should be favorable for zirconia-reinforced lithium silicate crowns is 60 µm.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-22"},"PeriodicalIF":0.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144060928","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
Trends and Productivity in 3D Printing Technologies and Materials for Dental Research: A Bibliometric Analysis from 2013 to 2024. 牙科研究3D打印技术和材料的趋势和生产力:2013年至2024年的文献计量分析。
The International journal of prosthodontics Pub Date : 2025-05-12 DOI: 10.11607/ijp.9334
Omar Alageel
{"title":"Trends and Productivity in 3D Printing Technologies and Materials for Dental Research: A Bibliometric Analysis from 2013 to 2024.","authors":"Omar Alageel","doi":"10.11607/ijp.9334","DOIUrl":"https://doi.org/10.11607/ijp.9334","url":null,"abstract":"<p><strong>Purpose: </strong>Research on three-dimensional (3D) printing in dentistry has been widely studied, yet there is a gap in comprehensive bibliometric analysis focusing on materials and printing technologies used in this field. This study aims to analyze research trends from 2013 to 202 using a bibliometric approach, focusing on publication distribution, productivity, and trends in materials and 3D printing technologies in dentistry.</p><p><strong>Material and methods: </strong>Data, including English language articles, were collected from the Web of Science Core Collection. Microsoft Excel and bibliometrix were used for quantitative analysis, while SPSS was employed for correlation and regression analysis.</p><p><strong>Results: </strong>The analysis included 596 studies published in 161 journals. On average, each article received 13.47 citations, with 2,461 authors. International collaboration was significant, with 27.85% of studies involving co-authorship across countries. Publication volume has increased steadily, with an annual growth rate of 60.25%, peaking at 179 articles in 2023. The peak mean citation rate was 6.65 per article in 2019. Key authors and institutions from South Korea, Egypt, Switzerland, and Saudi Arabia. The USA led to article output and citations, followed by China and South Korea. This study identified key trends in material usage, highlighting the predominance of resin and zirconia, along with the significant use of DLP and SLA 3D printing technologies.</p><p><strong>Conclusions: </strong>3D printing in dental research has grown rapidly, peaking in 2023. Notable advancements in resins and the development of DLP and SLA technologies underscore the transformative potential of 3D printing in dentistry.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-22"},"PeriodicalIF":0.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143995989","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
The Association of Sleep, Awake, or Combined Sleep/Awake Bruxism and Temporomandibular Disorders Subtypes: A Cross- Sectional Population Study. 睡眠、清醒或睡眠/清醒联合磨牙症与颞下颌疾病亚型的关系:一项横断面人群研究。
The International journal of prosthodontics Pub Date : 2025-04-30 DOI: 10.11607/ijp.9394
Ruy Teichert Filho, Patrícia Saram Progiante, Marcos Pascoal Pattussi, Patrícia Krieger Grossi, Márcio Lima Grossie
{"title":"The Association of Sleep, Awake, or Combined Sleep/Awake Bruxism and Temporomandibular Disorders Subtypes: A Cross- Sectional Population Study.","authors":"Ruy Teichert Filho, Patrícia Saram Progiante, Marcos Pascoal Pattussi, Patrícia Krieger Grossi, Márcio Lima Grossie","doi":"10.11607/ijp.9394","DOIUrl":"https://doi.org/10.11607/ijp.9394","url":null,"abstract":"<p><strong>Objectives: </strong>To assess the association of the role of sleep (SB), awake (AB), and combined SB/AB bruxism with temporomandibular disorders (TMD) subtypes.</p><p><strong>Materials and methods: </strong>The sample (n=1,463) were registered users of the Brazilian Public Health Care System (SUS). The Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) Axis I was used to classify TMD subtypes; and the RDC/TMD Axis II, to assess Graded Chronic Pain Scale (GCPS), depression, somatization with or without pain, sociodemographic data, pain history, and bruxism. Sleep quality was assessed by the Sleep Assessment Questionnaire (SAQ®).</p><p><strong>Results: </strong>The results in this study have demonstrated that all three bruxer groups (SB, AB, and combined SB/AB) increased the risk of developing TMD measured by the GCPS and muscle diagnoses, and AB increased the risk in disk displacements. The combined SB/AB group increased the risk (adjusted odds ratio - OR) for GCPS and muscle diagnoses in 3.8 and 4.1 times, respectively; while the AB group alone increased the risk for disk displacements in 1.8 times. The OR was adjusted for sleep quality and psychosocial variables: depression, somatization (physical symptoms) without pain, gender, income level, and employment; which have shown in the univariate analysis to differ among all bruxer groups.</p><p><strong>Conclusions: </strong>Bruxism increased the risk for TMD subtype development, but it varied among the three bruxism types assessed (SB, AB, or combined SB/AB), and it was also modulated by sleep and psychosocial variables. SB and AB, separately and in combination, contribute to TMD subtype development and must be assessed in all studies.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-27"},"PeriodicalIF":0.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144040364","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
CAD-CAM-Fabricated Zirconia Removable Dental Prosthesis With Telescopic Crowns: A Case Report. cad - cam制造的可移动氧化锆假体带伸缩冠1例报告。
The International journal of prosthodontics Pub Date : 2025-04-30 DOI: 10.11607/ijp.9262
Takeru Kondo, Sabina Bhattarai, Masanori Hatakeyama, Hiroshi Egusa
{"title":"CAD-CAM-Fabricated Zirconia Removable Dental Prosthesis With Telescopic Crowns: A Case Report.","authors":"Takeru Kondo, Sabina Bhattarai, Masanori Hatakeyama, Hiroshi Egusa","doi":"10.11607/ijp.9262","DOIUrl":"https://doi.org/10.11607/ijp.9262","url":null,"abstract":"<p><p>Clasp-retained removable partial dentures, which are selected to avoid invasive dental implant placement surgery and the challenges of cleaning around fixed dental prostheses, remain a common option for replacing missing teeth. However, the clasps are visually unappealing and patients demand more esthetic treatment options. Telescopic crowns, a more esthetic alternative to clasp-retained removable partial dentures, allow for better oral hygiene maintenance. This case report describes a combination of telescopic crowns and computeraided design-computer-aided manufacturing-fabricated zirconia removable dental prosthesis. This technique offers an esthetic and minimally invasive solution for patients seeking to restore their smiles and maintain better oral hygiene.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144061624","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
Fixed Implant Rehabilitation for A Mandibular Edentulous Patient Using Innovative Multi-Direct Capturing Intraoral Scanning Technology: A Case Report. 采用创新的多直接捕获口内扫描技术对下颌无牙患者进行固定种植康复:1例报告。
The International journal of prosthodontics Pub Date : 2025-04-30 DOI: 10.11607/ijp.9379
Karla Soto
{"title":"Fixed Implant Rehabilitation for A Mandibular Edentulous Patient Using Innovative Multi-Direct Capturing Intraoral Scanning Technology: A Case Report.","authors":"Karla Soto","doi":"10.11607/ijp.9379","DOIUrl":"https://doi.org/10.11607/ijp.9379","url":null,"abstract":"<p><p>The adoption of digital impressions has significantly refined workflows for implant-based restorations, enhancing clinical precision and procedural efficiency. Although intraoral scanning is well-documented for single and multiple implant restorations, evidence regarding its accuracy and reliability in full-arch rehabilitations remains sparse. This case report presents an All-on-6 full-arch rehabilitation utilizing a novel optical scanning technology, the Multi-Direct Capturing (MDC). This technology addresses critical challenges associated with full-arch scanning, while enhancing both operator control and patient experience. The case demonstrates the potential for immediate and precise fit, advancing clinical outcomes in mandibular full arch implantsupported restoration.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-22"},"PeriodicalIF":0.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144061286","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
Comparison of Horizontal Jaw Relation Pathways of Edentulous Patients Recorded with a Digital Jaw Motion Tracking Device 数字下颌运动跟踪仪记录无牙患者水平下颌关系通路的比较
The International journal of prosthodontics Pub Date : 2025-04-30 DOI: 10.11607/ijp.9232
Ciocca Leonardo, Maltauro Mattia, Tozzi Federico, Elisa Vargiu, Meneghello Roberto, Angela Montanari, Laura Anderlucci
{"title":"Comparison of Horizontal Jaw Relation Pathways of Edentulous Patients Recorded with a Digital Jaw Motion Tracking Device","authors":"Ciocca Leonardo, Maltauro Mattia, Tozzi Federico, Elisa Vargiu, Meneghello Roberto, Angela Montanari, Laura Anderlucci","doi":"10.11607/ijp.9232","DOIUrl":"https://doi.org/10.11607/ijp.9232","url":null,"abstract":"<p><strong>Purpose: </strong>This clinical study compares condyle path elements (CPE) in edentulous patients using fully adjustable (FA) and semi-adjustable (MS) digital articulators.</p><p><strong>Materials and methods: </strong>Ten patients with at least one edentulous jaw were included. Jaw relation records were digitally set in the articulators using two approaches: the MS group employed standard mean occlusal parameter values, while the FA group used individual values obtained using a digital jaw motion tracking device. Differences in CPEs, represented as Δ-values, were statistically analyzed using the non-parametric Wilcoxon signed-rank test and post-hoc Tukey tepPst. These analyses evaluated overall differences between FA and MS articulators, identified the regions with the greatest Δ-errors, and determined the percentage of movement required for statistical significance.</p><p><strong>Results: </strong>CPEs differed significantly between semi- and fully adjustable articulators. Significant variations were observed in individual CPEs (P < .001), with motion percentage significantly influencing Δ-values ( P< .001). Notably, within the first 20% of CPEs MS pathways, significant differences were within the initial 2 mm of movement, a critical range for prosthetic rehabilitation.</p><p><strong>Conclusion: </strong>This study highlights statistically significant differences in CPEs between semiand fully adjustable digital articulators, particularly within the initial 2 mm of movement. These findings underscore the importance of precise CPEs replication for occlusal design of complete dentures.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-26"},"PeriodicalIF":0.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144050994","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
Effects of Toothbrushing and Thermocycling on Color, Opalescence, Fluorescence, and Surface Analyses of Stained CAD-CAM Glass-ceramics and Zirconia. 刷牙和热循环对染色CAD-CAM玻璃陶瓷和氧化锆的颜色、乳光、荧光和表面分析的影响。
The International journal of prosthodontics Pub Date : 2025-04-30 DOI: 10.11607/ijp.9231
Bruno Arruda Mascaro, Giovana Pompeu Parrilha, Rafael de Pauli Santos, José Maurício Dos Santos Nunes Reis
{"title":"Effects of Toothbrushing and Thermocycling on Color, Opalescence, Fluorescence, and Surface Analyses of Stained CAD-CAM Glass-ceramics and Zirconia.","authors":"Bruno Arruda Mascaro, Giovana Pompeu Parrilha, Rafael de Pauli Santos, José Maurício Dos Santos Nunes Reis","doi":"10.11607/ijp.9231","DOIUrl":"https://doi.org/10.11607/ijp.9231","url":null,"abstract":"<p><strong>Purpose: </strong>To assess the impact of toothbrushing and thermocycling on color, opalescence, fluorescence, and surface of extrinsically stained CAD-CAM ceramics.</p><p><strong>Materials and methods: </strong>Specimens (n=20) of VITA Mark II (VBII), VITA Suprinity (SUP), and IPS e.max ZirCAD (ZIR) were stained and glazed, then divided into two groups based on dentifrice (n=10; conventional or whitening). Aging was simulated via 100,000 toothbrushing cycles followed by 12.000 cycles of thermocycling. Color differences (ΔE00) and opalescence were calculated. Images under ultraviolet lamp were obtained for fluorescence analysis. Surface roughness was analyzed using 3D laser confocal microscopy, and chemical elemental characterization was determined using energy-dispersive X-ray spectroscopy (XEDS). Statistical analyses (α=0.05) included 2-way ANOVA and Tukey HSD tests for ΔE00, and 3way ANOVAs with Sidak post hoc test for opalescence, fluorescence, and surface roughness. ΔE00 values were compared to perceptibility and acceptability thresholds.</p><p><strong>Results: </strong>Higher ΔE00 were observed for VBII in the whitening group and SUP in the conventional group. All ΔE00 values remained below perceptibility. ZIR exhibited the lowest opalescence and fluorescence before and after aging. SUP and ZIR showed a significant reduction but continued to exhibit fluorescence after aging. VBII whitening and SUP conventional exhibited increased roughness. XEDS indicated that extrinsic characterization persisted on the surface with subtle changes in elemental composition after aging.</p><p><strong>Conclusions: </strong>The findings suggest that toothbrushing with different dentifrices and thermocycling can impact the aesthetic outcome and surface of stained CAD-CAM ceramics. Despite these, the materials evaluated maintained color stability and resisted the proposed aging.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-31"},"PeriodicalIF":0.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144053155","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
The Distortion of the Implant-Framework Interface of Screw- Retained Co-Cr Ceramic Fixed Dental Prosthesis Following Ceramic Veneering: An In Vitro Study. 螺钉保留Co-Cr陶瓷固定义齿陶瓷贴面后种植体-框架界面变形的体外研究。
The International journal of prosthodontics Pub Date : 2025-04-30 DOI: 10.11607/ijp.9299
Marco Toia, Andrea Parpaiola, Evaggelia Papia, Ruggero Rodriguez Y Baena, Saturnino Marco Lupi
{"title":"The Distortion of the Implant-Framework Interface of Screw- Retained Co-Cr Ceramic Fixed Dental Prosthesis Following Ceramic Veneering: An In Vitro Study.","authors":"Marco Toia, Andrea Parpaiola, Evaggelia Papia, Ruggero Rodriguez Y Baena, Saturnino Marco Lupi","doi":"10.11607/ijp.9299","DOIUrl":"https://doi.org/10.11607/ijp.9299","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the effect of ceramic firing cycles on the interface of screw-retained implant-supported metal-ceramic fixed dental prosthesis.</p><p><strong>Materials and methods: </strong>Twenty-two frameworks were produced in cobalt-chrome alloy using an integrated CAD/CAM system. The frameworks were manufactured with an additive process on the milled implantframework interface. The total distortion of the interface was measured before (T1) and after (T2) the ceramic firing thermal cycles. The interface distortion was measured using a Coordinate Measuring Machine with an uncertainty of 2.5 nm and a resolution of 25 nm and a universal software for dimensional metrology. To test whether there was a significant difference in total 3D distortion, the Kruskal-Wallis test and Dunn's test were employed; linear distortions between groups were compared using the Kolmogorov-Smirnov test and the Mann-Whitney test. A p-value of ≤ 0.05 was considered statistically significant.</p><p><strong>Results: </strong>The total 3D distortion between the nominal value and T1 was 0.5 ± 1.0 μm, between the nominal value and T2 was 10.5 ± 4.9 μm, and between T1 and T2 was 10.6 ± 4.9 μm. The distortion between T1 and the nominal value was significantly smaller than that between the other two groups. The average deviations around the three axes and diameters were not significantly different among the three groups.</p><p><strong>Conclusions: </strong>CAD/CAM manufacturing of the implantframework interface is an accurate process and does not present appreciable distortions. The ceramic firing cycles induce three-dimensional interface distortion. The observed distortion values were well below clinically relevant levels.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-19"},"PeriodicalIF":0.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144048728","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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