The International journal of prosthodontics最新文献

{"title":"The Two-Color Chewing Gum Mixing Ability Test for The Measurement of Masticatory Function in Dentistry and Medicine: A Scoping Review.","authors":"Luca Aquilanti, Valentina Farella, Mauro Merli, Giorgio Rappelli","doi":"10.11607/ijp.9184","DOIUrl":"https://doi.org/10.11607/ijp.9184","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this scoping review is to provide a comprehensive overview of the twocolor chewing gum mixing ability test's use across dental and medical fields, highlighting its potential for standardizing masticatory performance assessment and improving clinical decision-making.</p><p><strong>Materials and methods: </strong>A scoping review was conducted on Pubmed/Medline, following the PRISMA-ScR guidelines. Abstracts of research papers were screened for suitability, and fulltext articles were obtained for those which satisfied the inclusion criteria.</p><p><strong>Results: </strong>After the screening, 73 articles were selected and considered eligible for this review in addition to other 11 studies identified from manual searching. A total of 84 studies were included in this scoping review. Overall, 20 articles were related to the development and the improvement of the two-color chewing gum mixing ability test over the years and they were discussed at first. Finally, 64 studies investigated its application to assess MP in different fields of Dentistry and Medicine.</p><p><strong>Conclusions: </strong>The two-color chewing gum mixing ability test was successfully adopted in the assessment of masticatory function, not only in Dentistry, but also in general Medicine.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-34"},"PeriodicalIF":0.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144048935","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}

{"title":"Significance of Primary Stability in Non-Immediate Loaded Dental Implants: A Systematic Review & Meta-Analysis.","authors":"Nahal Razaghi, Thomas Gill, Anuya Patankar, Dominic Hurst, Aviva Petrie, Shakeel Shahdad","doi":"10.11607/ijp.9115.","DOIUrl":"10.11607/ijp.9115.","url":null,"abstract":"<p><strong>Objectives: </strong>Primary stability is considered critical for osseointegration of immediately-loaded implants. However, evidence does not conclude whether this is equally critical for early or delayed-loaded protocols. This systematic review aims to determine the significance of primary stability, as measured by insertion torque (IT) and/or implant stability quotient (ISQ), in achieving osseointegration of non-immediate loaded implants.</p><p><strong>Materials & methods: </strong>Three electronic databases were searched. Studies were included if they measured IT and/or ISQ at time of placement and reported survival for up to 1 year. For studies where at least one implant failed, a random effects meta-analysis was carried out for the odds of survival.</p><p><strong>Results: </strong>3431 publications were screened; 79 were accepted for analysis. These comprised of 28 RCTs, 12 CCTs, 10 cohort studies, and 29 case series. Twenty-one studies provided individual implant data for a total of 1413 implants. Seven studies were included for metaanalysis. 264 implants were placed with ISQ <60, and 249 with IT <35. Survival of implants placed with ISQ <60 and IT <35 were 97.7% and 95.2% respectively. Meta-analysis found no evidence that an ISQ≥60 was less likely to fail compared with ISQ<60 (OR 0.54, 95%CI 0.17-1.75, P=0.31), or that an IT≥35 resulted in higher odds of failure compared to IT<35 (OR 0.82, 95%CI 0.13-5.40, P=0.84).</p><p><strong>Conclusions: </strong>This study found no evidence to support an IT≥35 or ISQ≥60 for non-immediately loaded implants results in higher survival than those below these values.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-41"},"PeriodicalIF":0.0,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766243","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}

{"title":"Tea and Cola Stainability of Full Veneer Crowns Constructed from Repressed Conventional and Novel Lithium Disilicate Ceramic Ingots: An In Vitro Study.","authors":"Sherif Elsayed Sultan, Merin Mathew, Kiran Kumar Ganji, Amal Al Enazi, Abeer Atef Younes, Radwa Ashraf Eldessouky, Sherif Magdy Elsharkawy, Mohammed Magdy Kamel, Doaa Abdelaziz Helal","doi":"10.11607/ijp.9249","DOIUrl":"https://doi.org/10.11607/ijp.9249","url":null,"abstract":"<p><strong>Background: </strong>A large number of dental restorations are constructed from heat-pressed lithium disilicate (LDS) glass-ceramic ingots. These ingots' mechanical properties have not been adversely affected by repressing or repeating their processing. Despite this, little is known about the stainability of these LDS ceramic ingots that have been repeatedly processed.</p><p><strong>Objective: </strong>To evaluate change in colour of ceramic crowns constructed from 3 different repressed ceramic ingots: lithium disilicate (LS), lithium silicate material reinforced with zirconia (ZLS) and repressed lithium silicate crowns with high-density micronization technology (LS- HDM) following immersion in tea, and cola solutions and followed by brushing.</p><p><strong>Materials & methods: </strong>Three distinct heat-processed LDS ceramic ingots representing three groups (N= 24) E-max (EM), Lisi (Li), and Celtra (CA) were used to manufacture seventy-two identical ceramic crowns. Three subgroups (n = 8) representing the experimental (tea, and cola) and control (artificial saliva) groups were created from each group. Colour changes were measured at the beginning, following tea and cola staining, and after brushing, using the CIE L * a * b * system. The colour change (ΔE, ΔL, Δa, and Δb) were evaluated using one-way ANOVA, and post-hoc analysis was done to determine any significant differences between the groups.</p><p><strong>Results: </strong>The analysis revealed significant differences in color attributes (L, a, and b values) among crown materials, with variations observed following immersion in saliva and staining solutions. While all materials exhibited a decrease in L values post-immersion, only CA showed significant changes in a and b values, indicating shifts in red and yellow components. Additionally, the overall color change (ΔE) remained below acceptability thresholds post-brushing, suggesting minimal perceptible differences. These findings underscore the material-specific responses to staining agents.</p><p><strong>Conclusion: </strong>Immersion of ceramic crowns made from LS, LS-HDM, and ZLS in tea and cola solutions resulted in noticeable color changes. However, regular tooth brushing effectively restored the satisfactory color appearance of stained ceramic crowns fabricated from repeatedly processed LS-based ingots.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-22"},"PeriodicalIF":0.0,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766272","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}

{"title":"Impact of Extrinsic Staining on the Physical Properties Oof Provisional Resins Fabricated by Digital and Conventional Methods - An In Situ Study.","authors":"Pedro Roberto Braz Rodrigues, Ana Lucia Caetano Pereira, Rocio Geng Vivanco, Fernanda de Carvalho Panzeri","doi":"10.11607/ijp.9263","DOIUrl":"https://doi.org/10.11607/ijp.9263","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate, in situ, the color stability of a printed resin (PR), milled resin (MR), and bisacrylic resin (BR) after exposure to coffee and cigarette smoke.</p><p><strong>Materials and methods: </strong>Twelve participants per group (Control, coffee consumers, and smokers) used intraoral devices containing the specimens resins. Seventy-two samples of each resin were prepared, and initial surface roughness and color readings recorded. Participants wore the device, containing two samples of each resin, for 15 days, brushing three times per day. Final color and surface roughness measurements were obtained. Water sorption and solubility analyses were conducted (n=20). Data were analyzed using ANOVA and Tukey tests (α=0.05).</p><p><strong>Results: </strong>BR had the highest alterations in surface roughness under control conditions and after cigarette smoke exposure (p<0.05). PR showed the highest surface roughness and MR the lowest alteration after coffee consumption (p<0.05). After coffee consumption, BR exhibited higher color change than PR (p<0.05); and following cigarette smoke exposure, BR showed the highest alteration (p<0.05), while MR had the lowest (p<0.05). Cigarette smoke caused the highest color change across all resins. BR exhibited highest water sorption and solubility (p<0.05).</p><p><strong>Conclusion: </strong>Printed and milled resins demonstrated better color stability and less alteration in surface roughness change compared to bis-acrylic resin.</p><p><strong>Clinical significance: </strong>The results suggest that clinicians may achieve better esthetic outcomes by opting for digital methods, especially in patients exposed to common staining agents like coffee and cigarette smoke.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-20"},"PeriodicalIF":0.0,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766238","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}

{"title":"Digital Workflow of Occlusal Rehabilitation in Partial Edentulism Based on Multifunctional Gothic Arch Tracing Devices: A Case Report.","authors":"Zihan He, Ruyi Li, Xin Zhang, Qianbing Wan, Zhou Zhu, Jian Wang","doi":"10.11607/ijp.9207","DOIUrl":"https://doi.org/10.11607/ijp.9207","url":null,"abstract":"<p><p>We report a clinical case about occlusal rehabilitation under a digital workflow for partial edentulism using multifunctional Gothic arch tracing devices. The individualized Gothic arch tracing devices were designed based on the virtual patient model, enabling the recording of the centric relation, previewing the aesthetics of maxillary teeth, and aiding in assessment of the temporomandibular joint function. Serving as a pre-implant treatment, the removable partial dentures were delivered to the patient within two follow-up visits, establishing a stable occlusal relationship. Based on the previously recorded centric relation, the final implantsupported fixed prostheses were applied. The patient expressed satisfaction with the restoration in terms of aesthetics and functionality.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143766235","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}

{"title":"Effects of Surface Treatments and Mouth Rinses on the Roughness and Color Stability of Interim Restorations Produced through Additive Manufacturing.","authors":"Ekin Gazioglu, Deger Ongul","doi":"10.11607/ijp.9303","DOIUrl":"https://doi.org/10.11607/ijp.9303","url":null,"abstract":"<p><strong>Purpose: </strong>The effect of mouth rinses on staining and roughness of interim restorations produced by additive manufacturing is unclear. This study investigated how surface treatments and mouth rinses affect staining, surface roughness, and the role of polishing on staining.</p><p><strong>Methods: </strong>320 disc-shaped specimens were produced from four resin materials (n=80) using conventional and additive methods. Each group was divided into two groups (n=40) according to surface applications: conventional (Group C) and sealant (Group S). After measuring surface roughness, groups were divided into four subgroups (n=10) and immersed in mouth rinses: LISTERINE (LIS), chlorhexidine gluconate 0.2% (CHX), chlorhexidine gluconate 0.1% (ELU), and artificial saliva (AS). Specimens were stored for one day (T1) and seven days (T2) in these solutions. Color measurements were performed before and after storage using a spectrophotometer, and color differences were calculated via the CIELab system. Post assessment, specimens were polished, and ∆E values were remeasured. Data were statistically analyzed with 1-Way ANOVA and Bonferroni tests (α=0.05).</p><p><strong>Results: </strong>The highest surface roughness values were observed in the PMMA, and the lowest were in printed groups among the conventional and sealanted groups (P < .05). LIS had the highest ∆E values against all mouth rinses. The surface sealant applied groups showed the lowest ∆E values and surface roughness in all time points. The process of polishing reduced ∆E values in all tested groups.</p><p><strong>Conclusions: </strong>Printed resins have sufficient optical and surface properties for interim restorations. Long-term use of mouth rinses may cause discolouration but using surface sealant and polishing may reduce this discolouration.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-21"},"PeriodicalIF":0.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702627","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}

{"title":"Fit and Fracture Load of Milled and 3D Printed Composite Onlays, an In Vitro Study.","authors":"Rani D'haese, Charlotte Hermans, Jana Hauspie, Stefan Vandeweghe","doi":"10.11607/ijp.9081","DOIUrl":"https://doi.org/10.11607/ijp.9081","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this in vitro study was to evaluate and compare the fit and fracture load of 3D printed and milled composite onlays.</p><p><strong>Materials and methods: </strong>An onlay preparation of a lower right molar was duplicated 28 times by means of 3D printing (Model 2.0, Nextdent, 3D systems, Soesterburg, the Netherlands). Fourteen onlays were milled (Brilliant Crios, Coltène, Whaledent AG, Switzerland) and 14 onlays were 3D printed (Nextdent C&B MHF, 3D systems, Soesterburg, the Netherlands). The marginal and internal fit were evaluated using the silicone-replica technique. For each impression, two sections were made in the silicone material. Each slice was photographed using a digital microscope and 13 measurements were performed on both slices using ImageJ. Next the onlays were cemented on their corresponding models (relyX Universal/SBU+, 3M ESPE, Seefeld, Germany) and tested in a universal testing machine (AGS-X, Shimadzu, Tokyo, Japan) to determine the fracture load.</p><p><strong>Results: </strong>The printed onlays showed a significant better marginal and internal fit (p<0.05). The marginal and internal fit for the 3D printed onlays was respectively 78µm (SD 23µm) and 222µm (SD 30µm) and for the milled onlays 100µm (SD 38µm) and 249µm (SD 55µm). In contrast, the milled onlays showed significant better results in terms of fracture load (p<0.05).</p><p><strong>Conclusion: </strong>Within the limits of this in vitro study, the printing process demonstrated a better fit, but with lower mechanical properties. Both the fit of the 3D printed and milled composite onlays were within the clinical acceptable limits.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-15"},"PeriodicalIF":0.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702629","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}

{"title":"Evaluation of Surface Roughness and Wear Resistance of Additively and Subtractively Manufactured CAD-CAM Dental Materials: An In Vitro Study.","authors":"Bersu Bedirhandede, Emre Tokar","doi":"10.11607/ijp.9318","DOIUrl":"https://doi.org/10.11607/ijp.9318","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the wear resistance and surface roughness of subtractively manufactured resin matrix ceramics and additively manufactured hybrid composites, both subjected to different surface treatments and thermomechanical aging.</p><p><strong>Materials and methods: </strong>Two additively manufactured materials and one subtractively manufactured polymer-infiltrated resin ceramic were used to fabricate square-shaped specimens.These specimens were divided into two subgroups based on surface treatment (n = 12). After surface roughness measurements and SEM analysis, the specimens were subjected to thermomechanical aging. Pre- and post-aging scans were analyzed to calculate wear depth. Surface roughness and SEM analyses were repeated, and 2-way ANOVA with Tukey's HSD test was used for statistical analysis.</p><p><strong>Results: </strong>Glazed surfaces exhibited significantly higher wear depth than polished ones (p = .018). Vita Enamic showed significantly greater wear depth compared to both VarseoSmile Crown Plus (p = 0.002) and P-Crown V2 (p = 0.001). For polished surfaces, Vita Enamic had significantly greater wear depth than VarseoSmile Crown. Plus (p = 0.001) and P-Crown V2 (p < .05). Initially, surface roughness values for glazed surfaces were similar (p = .076), but aging increased roughness significantly, with glazed P Crown V2 being rougher than glazed VarseoSmile Crown Plus (p = .001). After aging, glazed surfaces had significantly higher surface roughness than polished ones across all materials.</p><p><strong>Conclusion: </strong>Material type and surface treatment affected surface roughness and wear depth during thermomechanical aging. Glazed surfaces showed higher wear depth and roughness, with the glaze layer removed after aging. Polished surfaces exhibited greater wear for subtractive materials.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-21"},"PeriodicalIF":0.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702628","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}

{"title":"Effect of Recycling Cobalt-Chromium Alloy Powder on Metal- Ceramic Bond Strength and Microstructure.","authors":"Islam Guluzade, Haydar Albayrak, Rıdvan Yamanoğlu, Hasan İsmail Yavuz, Mustafa Ayata","doi":"10.11607/ijp.9298","DOIUrl":"https://doi.org/10.11607/ijp.9298","url":null,"abstract":"<p><strong>Purpose: </strong>This in vitro study is of significant importance as it examines the effects of reusing cobalt-chromium-tungsten-containing alloy powder on metal-ceramic bond strength and microstructure, providing valuable insights into the field of dental materials.</p><p><strong>Materials and methods: </strong>Thirty bar and nine square-shaped cobalt-chromium frameworks were produced by the conventional lost wax (Group C, [nBar=10, nSquare=3]) and selective laser melting technique (virgin powder, Group V [nBar=10, nSquare=3]; 25-times reused powder, Group R [nBar=10, nSquare=3]). X-ray diffraction, scanning electron microscopy, and ONH analysis were used to evaluate the casting ingot, powders, and frameworks' phase compositions, grain size, and microstructure. Three-point bend tests were used to assess the metal-ceramic bond strengths. Metal-ceramic bond strength values were compared using a one-way analysis of variance.</p><p><strong>Results: </strong>The bond strengths did not show significant differences (P>.05) between Groups C (29.95 ±4.60), V (31.32 ±3.44), and R (29.90 ±5.50). The recycled alloy powder's grain size (14.1 ±6.33 µm) was more significant than that of the virgin alloy powder (12.24 ±6.03 µm). Twenty-five times reused alloy powder had a greater N concentration than virgin powder. Group V and R had similar X-ray diffraction patterns, but the Group R frameworks had porous microstructure.</p><p><strong>Conclusion: </strong>Reusing cobalt-chromium alloy powder 25 times did not affect the metal-ceramic bond strength. Recycling the cobalt-chromium alloy powder is advisable.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-23"},"PeriodicalIF":0.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702626","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}

{"title":"Teaching and Motivating Gen Z in Prosthodontics.","authors":"Irena Sailer","doi":"10.11607/ijp.2025.2e","DOIUrl":"https://doi.org/10.11607/ijp.2025.2e","url":null,"abstract":"","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"25 2","pages":"155-156"},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143672120","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}