The International journal of prosthodontics最新文献_第7页

A Pilot Study to Predict the Lifetime of Resin- Based Materials for Dentures: Presentation of an In Vitro Thermally Accelerated Aging Method. 预测树脂基义齿材料寿命的初步研究：体外热加速老化方法的介绍。

The International journal of prosthodontics Pub Date : 2025-07-22 DOI: 10.11607/ijp.8854

Lionel Sadoun, Guy Ravalec, Géraldine Rohman, Claudine Wulfman

{"title":"A Pilot Study to Predict the Lifetime of Resin- Based Materials for Dentures: Presentation of an In Vitro Thermally Accelerated Aging Method.","authors":"Lionel Sadoun, Guy Ravalec, Géraldine Rohman, Claudine Wulfman","doi":"10.11607/ijp.8854","DOIUrl":"10.11607/ijp.8854","url":null,"abstract":"Purpose: To present a method for predicting the lifetime of dental materials using in vitro thermally accelerated aging. The technique was tested to compare the behavior of three resin base materials for dentures.Materials and methods: Bar-shaped samples of the polymethyl methacrylate (PMMA)-based resin Probase Hot (Probase), CAD/CAM disk Ivobase CAD (IvoCAD), and high-impact resin IvoCAP were aged in artificial saliva for 15, 30, 45, 60, 90, 120, and 180 days at 55°C, 75°C, and 90°C. Flexural strength and surface roughness of the three resins for each aging duration and temperature were measured for three samples (n = 189). Using the time-temperature equivalence principle and the Arrhenius model, a master curve was constructed, the activation energy of the simulated aging process was calculated, and the lifetime of each material was estimated based on degradation of flexural strength value over time.Results: The mean initial flexural strength was 87.98 ± 7.37, 79.35 ± 10.01, and 97.31 ± 4.97 MPa for IvoCAD, IvoCAP, and Probase, respectively. Activation energies of the aging in artificial saliva were measured at 81.9, 82.6, and 66.2 kJ/mol, respectively, and average lifetimes at 37°C were estimated at 19.5, 14.4, and 9.2 years.Conclusions: In this first approach to estimating the in vitro lifetime in artificial saliva of resin-based materials for dentures, the three materials met the expected criteria, validating the estimation method. Therefore, thermally accelerated aging and the Arrhenius model could be an interesting tool to add to routine tests used to validate new polymer materials and manufacturing processes.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"409-417"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142866877","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 Milestone for Prosthodontics and Implant Dentistry: Reflections on the First Global Consensus for Clinical Guidelines Workshop in Boston, June 16-18, 2025. 口腔修复学和种植牙科的里程碑：对首次全球共识临床指南研讨会的反思，波士顿，6月16日至18日，2025。

The International journal of prosthodontics Pub Date : 2025-07-22 DOI: 10.11607/ijp.2025.4e

Irena Sailer

引用次数: 0

Accuracy Of Stereophotogrammetry in Implant Scanning Compared to Intraoral Scanning in Completely Edentulous Patients - A Systematic Review and Meta-Analysis. 立体摄影测量在种植体扫描与全无牙患者口腔内扫描中的准确性——系统回顾和荟萃分析。

IF 1.8

The International journal of prosthodontics Pub Date : 2025-07-22 DOI: 10.11607/ijp.9358

Carolina P Noronha, Camila Ferreira de Souza, Marília Dantas Dos Santos Oliveira, Emily V F da Silva, Newton Sesma, Márcio Katsuyoshi Mukai

{"title":"Accuracy Of Stereophotogrammetry in Implant Scanning Compared to Intraoral Scanning in Completely Edentulous Patients - A Systematic Review and Meta-Analysis.","authors":"Carolina P Noronha, Camila Ferreira de Souza, Marília Dantas Dos Santos Oliveira, Emily V F da Silva, Newton Sesma, Márcio Katsuyoshi Mukai","doi":"10.11607/ijp.9358","DOIUrl":"10.11607/ijp.9358","url":null,"abstract":"This study aimed to evaluate the accuracy of full-arch implant impressions by comparing photogrammetry and intraoral scanning techniques, through a systematic review and meta- analysis following the Cochrane protocol. A comprehensive literature search was conducted in PubMed, Scopus, and ISI Web of Science until May 2024. Keywords based on the PICO question were used without time or language restrictions. In vitro studies assessing full-arch implant rehabilitations that compared photogrammetry with intraoral scanning were included. The risk of bias was assessed using the Quin Tool Method. Data were analyzed through meta- analysis in RevMan (Review Manager Cochrane), grouping the results into three subgroups: angle deviation (°), precision (μm), and trueness (μm). The search yielded 6348 studies; 11 met the eligibility criteria, and 7 provided sufficient data for quantitative meta-analysis. Photogrammetry demonstrated superior precision, with a mean difference (MD) of -0.03 (95% CI: -0.04, -0.02) and a high weight of 94.2%, indicating consistent evidence. For angle deviation (MD = -0.12, 95% CI: -0.16, -0.08, P < 0.00001) and trueness (MD = -0.16, 95% CI: -0.19, -0.13, P < 0.00001), the photogrammetry group also showed favorable results. Although trueness exhibited expressive mean difference values, it had a lower overall weight (5.8%). Within the limitations of this study, photogrammetry significantly improves the accuracy of full arch implant rehabilitations compared to intraoral scanning. These findings support the adoption of photogrammetry for more accurate and consistent outcomes in dental implant procedures.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-20"},"PeriodicalIF":1.8,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144692902","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

Monomer Elution of Additive- and Subtractive-Manufacturing Resins for Permanent Restorations. 用于永久修复的添加型和减量型人造树脂的单体洗脱。

The International journal of prosthodontics Pub Date : 2025-07-22 DOI: 10.11607/ijp.9119

Samet Atasoy, Sultan Aktuğ Karademir

{"title":"Monomer Elution of Additive- and Subtractive-Manufacturing Resins for Permanent Restorations.","authors":"Samet Atasoy, Sultan Aktuğ Karademir","doi":"10.11607/ijp.9119","DOIUrl":"10.11607/ijp.9119","url":null,"abstract":"Purpose: To evaluate the elution of residual monomers from resins used in additively and subtractively manufactured permanent restorations over a period of 1 month, using high performance liquid chromatography (HPLC).Materials and methods: Two additive manufacturing permanent crown resins (Crowntec [CT] and VarseoSmile Crown Plus [VS]) and a subtractive-manufacturing resin nanoceramic (Cerasmart [CS]) were used to fabricate 30 disc-shaped samples (10 × 2 mm; n = 10). The elution of bisphenol A ethoxylate dimethacrylate (BisEMA), urethane dimethacrylate (UDMA), and triethylene glycol dimethacrylate (TEGDMA) monomers was measured with HPLC at 1 day and 30 days after immersion. One-way ANOVA and post-hoc Tukey tests were used to evaluate differences in eluted monomer concentrations. Paired-sample t tests were used to test the differences in monomer concentration between storage times.Results: CS released BisEMA and UDMA residual monomers, while VS and CT released BisEMA and TEGDMA residual monomers. The residual monomer elution from CT was consistently lower than that from VS for both BisEMA (P < .001) and TEGDMA (P < .001). CS showed a decreasing release pattern in BisEMA (P = .002) and UDMA (P < .001) residual monomers, whereas VS and CT showed an increasing release pattern in BisEMA (P < .001) and TEGDMA (P < .001) residual monomers.Conclusions: The additive-manufacturing composite resins released higher amounts of residual monomers than the subtractive-manufacturing resin nanoceramic. Although the amounts of residual monomers released in the additive manufacturing composite resins increased over time in contrast to the subtractive manufacturing resin nanoceramic, these values were below cytotoxic levels.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":" ","pages":"430-436"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141904109","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 Complete Removable Dental Prostheses: A Pilot Study Evaluating a Novel System Using a Bicolored Monolithic Resin Disk. CAD-CAM完全可移动义齿：一项使用双色整体树脂盘评估新系统的初步研究。

The International journal of prosthodontics Pub Date : 2025-07-22 DOI: 10.11607/ijp.9398

Sabrina Maniewicz, Johan Haerri, Philippe Mojon, Frauke Müller

{"title":"CAD-CAM Complete Removable Dental Prostheses: A Pilot Study Evaluating a Novel System Using a Bicolored Monolithic Resin Disk.","authors":"Sabrina Maniewicz, Johan Haerri, Philippe Mojon, Frauke Müller","doi":"10.11607/ijp.9398","DOIUrl":"https://doi.org/10.11607/ijp.9398","url":null,"abstract":"Objectives: This pilot study aims to evaluate monolithic digital complete dentures fabricated from shell-geometry two-colored Polymethylmethacrylate disks (Ivotion®, Ivoclar Vivadent AG).Material and methods: The Biofunctional Prosthetic System (Ivoclar Vivadent AG) workflow was used for manufacturing complete upper and lower prostheses. The primary outcome was esthetic appearance, assessed by the accuracy of the pink-white resin transition and an esthetic score. Secondary outcomes included oral health-related quality of life (OHRQoL), denture satisfaction index (DSI), masticatory performance (MP), maximum bite force (MBF), bite pressure (BP) and prosthetic maintenance. Data analysis included descriptive statistics and multivariate comparison tests. The sample size was limited to ten participants.Results: Three women and 7 men (mean age: 65 years) participated in the study; 9 completed the 3-month follow-up. Among the 20 prostheses, 8 presented imperfections of the white-pink transition (median: 1 mm; range: 0,3-10 mm). From 2 weeks onward, the novel dentures scored higher on the esthetic score than the previous dentures, which were considered ideal/near ideal (p<0.05). A non-significant improvement in OHRQoL, DSI and MP was noted whereas MBF and BP improved significantly over the observation period (p<0.05). Prosthodontic maintenance events included 2 small adjustments before the 2-week follow-up.Conclusion: The positive evaluations on esthetics with no or minor deviations in the transition from the white to the pink confirm the suitability of the design of the two-colored shell-geometry resin disk for CAD/CAM complete denture manufacturing. Furthermore, favorable patient-reported and clinical outcomes suggest that this novel system seems to be a viable treatment modality that warrants further investigation.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-23"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144692904","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

Digital Workflow of Occlusal Rehabilitation in Partial Edentulism Based on Multifunctional Gothic Arch Tracing Devices: A Case Report. 基于多功能哥特弓追踪装置的部分义齿咬合康复数字化工作流程1例报告。

The International journal of prosthodontics Pub Date : 2025-07-22 DOI: 10.11607/ijp.9207

Zihan He, Ruyi Li, Xin Zhang, Qianbing Wan, Zhou Zhu, Jian Wang

引用次数: 0

30-Year Clinical Performance of Double-Crown-Retained Removable Partial Dentures-A Practice-Based Retrospective Study. 双冠固位可摘局部义齿的三十年临床表现--一项基于实践的回顾性研究。

IF 1.8

The International journal of prosthodontics Pub Date : 2025-07-22 DOI: 10.11607/ijp.9148

Lea S Prott, Zara A von Zitzewitz, Ralph Brinks, Robert Teeuwen, Alfons Hugger, Petra C Gierthmuehlen

引用次数: 0

Influence of Gingival Color and Finish Line Location on the Accuracy of Intraoral Scans for Complete-Arch Tooth Preparation. 牙龈颜色及终点位置对全牙弓预备口腔内扫描准确度的影响。

The International journal of prosthodontics Pub Date : 2025-07-22 DOI: 10.11607/ijp.9420

Nazmiye Şen, Sabire Isler

{"title":"Influence of Gingival Color and Finish Line Location on the Accuracy of Intraoral Scans for Complete-Arch Tooth Preparation.","authors":"Nazmiye Şen, Sabire Isler","doi":"10.11607/ijp.9420","DOIUrl":"https://doi.org/10.11607/ijp.9420","url":null,"abstract":"Purpose: To investigate the influence of different gingival colors and finish line locations on the accuracy of intraoral scans for complete-arch tooth preparation.Methods: Ten complete-arch maxillary models with 5 different gingival colors [light pink (LP), dark pink (DP), orange (Or), brown (Br), and purple (P)] and 2 different finish line locations [equigingival (Eq) and subgingival (Sb)] were used. Ten scans of each reference model were made with an intraoral scanner and exported as STL files. Assessment of precision and trueness was conducted with 3D analysis software. Each STL file was individually aligned with the reference scan and 3D differences were calculated using the root mean square (RMS) value. Data were statistically analyzed using 2-way ANOVA and Tukey HSD tests (α=.05).Results: Regarding trueness, significant differences were found between different gingival colors and finish line locations. The highest mean RMS value was found in the gingival color group of Or with Sb finish line. Regardless of the finish line location applied, significantly lower RMS values were found in the gingival color groups of Br and P. Regarding precision, finish line location significantly influenced the mean RMS values of LP, DP, and Or. Regardless of the finish line location applied, significantly lower RMS values were obtained in the gingival color groups of Br and P.Conclusions: Gingival color influenced the scan accuracy of complete-arch tooth preparation. When the gingival color was a darker gingival color, the scan accuracy was improved, especially in the case of a subgingival finish line location.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-16"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144692909","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

Color Stability of Different CAD/CAM Complete Denture Resins. 不同CAD/CAM全口义齿树脂的颜色稳定性。

The International journal of prosthodontics Pub Date : 2025-07-21 DOI: 10.11607/ijp.9390

Martina Bonvicini, Carlo Monaco, Claudia Mazzitelli, Tatjana Maravic, Annalisa Mazzoni, Lorenzo Breschi

{"title":"Color Stability of Different CAD/CAM Complete Denture Resins.","authors":"Martina Bonvicini, Carlo Monaco, Claudia Mazzitelli, Tatjana Maravic, Annalisa Mazzoni, Lorenzo Breschi","doi":"10.11607/ijp.9390","DOIUrl":"https://doi.org/10.11607/ijp.9390","url":null,"abstract":"Purpose: The purpose of this in vitro study was to evaluate the color stability of resins for complete dentures produced with different technologies after immersion in coffee solution.Materials and methods: 50 square-shaped specimens were prepared from different resins for complete dentures (n=10): Probase Hot (PH; Ivoclar AG), IvoBase CAD (IBC; Ivoclar AG), Ivotion Dent white (ID, Shade A2; Ivoclar AG), Dima Print Denture Base (DPDB; Kulzer), Dima Print Denture Teeth (DPDT, Shade A2; Kulzer). One side of each specimen was polished according to manufacturers' instructions (POL) while the other one was left unpolished. (UNPOL) (T0). The specimens were immersed in a coffee solution at 37 °C for 28 days (T28). During the storage period, the staining solution was replaced every 24 h. The CIELab color. differences (ΔEab) between the different time intervals were evaluated using a live-video. comparative spot digital colorimeter (Smart_Vision). Data were collected and statistically analyzed (p<0.05).Results: The highest color stability was recorded for IBC UNPOL (∆E= 0.32; p<0.05). All specimens scored an acceptable ∆E, except for DPDT UNPOL (∆E= 4.56) which scored significantly lower as compared to all the other specimens (p>0.05).Conclusions: Milled and 3D printed resins for complete dentures demonstrated comparable color stability to traditionally-fabricated materials. Polishing influenced the color stability only in the 3D printed white resin where the unpolished group reached an clinically unacceptable level of color change after staining.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-18"},"PeriodicalIF":0.0,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144692905","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 Retrospective Clinical Multicenter Study of Single Retainer Glass-Ceramic Resin Bonded Fixed Dental Prostheses and Implant-Supported Single Crowns in the Esthetic Zone. 单固位玻璃陶瓷树脂粘接固定义齿与种植体支撑单冠在美观区的回顾性临床多中心研究。

IF 1.8

The International journal of prosthodontics Pub Date : 2025-07-21 DOI: 10.11607/ijp.9427

Zahra Athab Abdulijabbar, Alf Eliasson, Victoria Franke Stenport, Lars Hjalmarsson

{"title":"A Retrospective Clinical Multicenter Study of Single Retainer Glass-Ceramic Resin Bonded Fixed Dental Prostheses and Implant-Supported Single Crowns in the Esthetic Zone.","authors":"Zahra Athab Abdulijabbar, Alf Eliasson, Victoria Franke Stenport, Lars Hjalmarsson","doi":"10.11607/ijp.9427","DOIUrl":"10.11607/ijp.9427","url":null,"abstract":"Purpose: To evaluate and compare the 3-8-year survival, complication, esthetics, and patient- reported outcomes of single retainer glass-ceramic resin bonded fixed dental prostheses (RBFDPs), and implant supported single crowns (ISSCs).Materials and methods: A retrospective multicenter study including 48 participants with 66 single retainer lithium disilicate RBFDPs and 45 participants with 53 ISSCs in the anterior or premolar position. A clinical and radiographical examination including esthetic evaluation using White and Pink Esthetic Score index (PES and WES) were performed. Participants completed the Oral Health Impact Profile questionnaire (OHIP-14) and a visual analogue scale VAS, to evaluate subjective treatment outcomes.Results: The mean follow up was 50 months for RBFDPs and 73 months for ISSCs. There was a statistically significant difference in 5-year survival rates for RBFDPs 87.9% and ISSCs 96.7% and 100% for implants (P=.012). There was also a statistically significant difference in survival rates for RBFDPs between the clinics (P = .015). The RBFDP group had 15% technical complications (one debonding and nine fatal fractures), and the ISSCs had 11.3% technical (four extensive and two minor ceramic fractures) and 5.6% biological complications. The WES evaluation was statistically significantly better for RBFDPs than for the ISSCs (P=.002) but, no statistical difference was present in PES evaluation (P=.47). All participants were satisfied according to OHIP-14 and VAS except for two with ISSCs.Conclusions: ISSCs had a higher survival rate than the RBFDPs, however a correctly designed single retainer glass-ceramic lithium disilicate RBFDP is a viable treatment when ISSC is not indicated.","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-26"},"PeriodicalIF":1.8,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144692901","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