The International journal of prosthodontics最新文献

{"title":"A Case Report Illustrating the 'Patient Selection' Part of the Workflow for the Rehabilitation of the Edentulous Maxilla Based on Core Outcome Sets.","authors":"Stephen Chen","doi":"10.11607/ijp.9951","DOIUrl":"https://doi.org/10.11607/ijp.9951","url":null,"abstract":"<p><p>This case report illustrates the 'Patient Selection' process as part of the GCCG structured workflow for the rehabilitation of the edentulous maxilla, and is according to the GCCG recommendations WG1_Rec1, WG4_Rec1, WG4_Rec4, WG4_Rec5.1 In this report, a 68-year-old male patient presented with maxillary partial edentulism. The remaining teeth were severely worn and he was self-conscious about his appearance. As part of the initial examination and assessment, several treatment options were proposed and discussed, based on the concept of shared-decision. The patient ultimately decided to have an implant supported fixed complete maxillary prosthesis.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-6"},"PeriodicalIF":1.8,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148922468","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":"Treatment Procedures for the Edentulous Maxilla: Supplement report for the 1st Global Consensus for Clinical Guidelines (GCCG).","authors":"German O Gallucci, Larissa Bemquerer, Alejandro Lanis, Ronald E Jung, Dominique Rousson, Kevser Pala","doi":"10.11607/ijp.9981","DOIUrl":"https://doi.org/10.11607/ijp.9981","url":null,"abstract":"<p><p>Rehabilitation of the edentulous maxilla with implant-supported restorations is a complex procedure requiring comprehensive treatment planning and precise clinical execution. The First Global Consensus for Clinical Guidelines (GCCG) established a systematic, evidence-based, and patient-centered workflow for the rehabilitation of the edentulous maxilla. This article presents the clinical application of the treatment procedures component of the GCCG workflow through a step-by-step case report, illustrating the recommended clinical protocol for rehabilitation of an edentulous maxilla. The presented protocol provides a practical framework for translating the GCCG recommendations into routine clinical practice.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-13"},"PeriodicalIF":1.8,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148922464","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":"Complications in Full-Arch Implant-Supported Restorations During the Maintenance Phase: A Three-Domain Critical Analysis.","authors":"David Norré, Venceslav Stankov, Wael Att","doi":"10.11607/ijp.9932","DOIUrl":"https://doi.org/10.11607/ijp.9932","url":null,"abstract":"<p><p>Full-arch implant-supported restorations are widely regarded as a predictable treatment modality for edentulous patients, demonstrating high implant survival rates over long-term follow-up. However, the maintenance phase is frequently characterized by a substantial burden of biological, hygienic, and mechanical complications that extend far beyond implant survival alone. Current literature often reports survival outcomes exceeding 90% after 10 years,1 yet these metrics fail to adequately reflect the recurrent maintenance interventions required throughout the lifespan of the prosthesis. This paper proposes a three-domain framework for understanding complications in full-arch implant-supported restorations: biological complications, hygiene-related challenges, and long-term prosthetic wear with recurrent mechanical complications. Rather than treating these events as isolated phenomena, this model emphasizes their interdependence and the central role of prosthetic design, implant positioning, and maintenance accessibility. Biological complications include peri-implant mucositis, peri-implantitis, and marginal bone loss. Hygiene-related challenges arise from prosthetic contours and geometries that compromise plaque control and long-term maintainability. Long-term prosthetic wear includes recurrent technical complications such as screw loosening, screw fracture, material degradation, veneering failure, and implant or abutment fracture. Recent evidence from the Global Consensus for Clinical Guidelines (GCCG) highlights the lack of standardized maintenance protocols and the high prevalence of prosthetic complications in implant-supported fixed complete dentures. A shift toward maintenance-oriented and prosthetically driven treatment planning appears essential to improve long-term outcomes.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-23"},"PeriodicalIF":1.8,"publicationDate":"2026-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148852314","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":"Digitally Designed Record Base with Peripheral Relief for a Selective Pressure Edentulous Digital Impression.","authors":"Mohamed Sherif Omar, Sherif Hosney","doi":"10.11607/ijp.9898","DOIUrl":"https://doi.org/10.11607/ijp.9898","url":null,"abstract":"<p><p>This technique aims to address the limitations of intraoral scanning in recording edentulous functional peripheral borders. A record base designed from an intraoral scan is digitally modified to incorporate peripheral relief. After the record base is tried in and extensions are verified, border molding is completed using either thermoplastic compound or a heavy consistency of elastomeric material. Once the functional border molding is complete, the record base is digitized and serves as the final impression. The resulting impression records the denture bearing area in a mucostatic state using an intraoral scanner, while simultaneously capturing the extension and dimensions of the peripheral borders in a functional state. This approach may produce a denture with functional borders, adequate extension, and improved retention, thereby overcoming limitations inherent to intraoral scanning of edentulous arches.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-16"},"PeriodicalIF":1.8,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148803911","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":"Conventional and Digital Oral Splint Precision: A Crossover Randomized Clinical Trial.","authors":"Rafael de Araujo Vidal, Helio Radke Bittencourt, Daniel Bertuzzi, Márcio Lima Grossi","doi":"10.11607/ijp.9783","DOIUrl":"https://doi.org/10.11607/ijp.9783","url":null,"abstract":"<p><strong>Purpose: </strong>To compare the precision (i.e., adaptation and adjustment time, contacts, comfort, satisfaction, and retention) of one conventional and two digital oral (Michigan type) splints. The null hypothesis is that there is no significant differences between conventional and digital oral splints precision.</p><p><strong>Materials and methods: </strong>This crossover randomized clinical trial (RCT) included 20 bruxers (41.8 ± 13.2 years old, 6 men and 14 women), who underwent three different types of oral splints. The sample was randomly allocated into three groups: a) Group 1: conventional oral splints fabricated in centric relation (CR) with a 3mm interincisal opening using a Lucia's Jig; b) Group 2: 3D printed digital oral splints designed in a virtual articulator using the same scanned 3mm CR bite registration (virtual Lucia's Jig); and c) Group 3: 3D printed digital oral splints designed in a virtual articulator using a 3mm interincisal opening, achieved by raising the virtual interincisal pin from the maximal intercuspal position (MIP). After the initial adaptation, the evaluation of the contacts was performed using the Occlusense® (Bausch). The satisfaction, comfort, and retention levels were measured by means of a questionnaire.</p><p><strong>Results: </strong>The results favored both digital splints (Groups 2 and 3) despite non-significant differences in adaptation and adjustment time. Levels of comfort and satisfaction were greater in both digital splint groups as compared to the conventional one (Group 1); however, no significant differences were found among the three groups regarding retention and contacts. Finally, no significant differences between CR versus MIP digital oral splints (Groups 2 and 3) were found in any outcome.</p><p><strong>Conclusion: </strong>The results support the use of partial or 100% digital workflows in the fabrication of oral splints as an alternative to conventional workflow, depending on time and cost efficiency.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-23"},"PeriodicalIF":1.8,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148803766","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":"Influence of Milling Parameters on the In-vitro Performance of Zirconia Molar Crowns.","authors":"Michael Benno Schmidt, Angelika Rauch, Sebastian Hahnel, Martin Rosentritt, Cordula Merle","doi":"10.11607/ijp.9499","DOIUrl":"https://doi.org/10.11607/ijp.9499","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate the influence of milling parameters on the durability of zirconia molar crowns during in-vitro aging-simulation and on fracture force.</p><p><strong>Materials and methods: </strong>Identical molar crowns (n=8 per group) were milled from IPS emax ZirCAD Prime (Ivoclar Vivadent, Schaan, Liechtenstein; n=8 per group) with different processing speed (soft, normal, fast) or level of details (very high, high, low) from 98 mm discs. All crowns were adhesively bonded on standardized resin-based composite molars. Artificial aging was performed with thermal cycling and mechanical loading (2x3000x5°C/55°C, 2 min, H2O dist., 1.2x106 force 50 N). Fracture forces were determined (v = 1 mm/min, Z010, Zwick, Germany). Statistics were performed by using Pearson-correlation, one-way ANOVA, and Bonferroni post-hoc-tests (α=0.05).</p><p><strong>Results: </strong>No crown failures occurred during TCML. The fracture forces ranged between 1551.1 ± 225.0 N (SV) and 2178.6 ± 479.0 N (SL). Significant (p<0.001) differences between groups were identified in ANOVA comparisons. Significant differences (p=0.006) were identified between high and low level of detail. No correlation was observed for fracture force and the processing speed (Pearson: 0.153/p=0.199) or the level of detail (0.124/0.301). Tests showed intermediate subject effects for the level of detail (p=0.007) and the level of detail*processing speed (p=0.002).</p><p><strong>Conclusion: </strong>The fracture forces were only slightly influenced by the different machining parameters of the milling machine. A low level of detail in combination with a soft machining speed appears to be ideal for achieving the highest fracture forces.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-18"},"PeriodicalIF":1.8,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148803880","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 Oxygen Plasma Treatment and Resin Cement on the Esthetic Outcomes of High-Translucency Monolithic Zirconia.","authors":"Pat Prasongpholchai, Mali Palanuwech","doi":"10.11607/ijp.9728","DOIUrl":"10.11607/ijp.9728","url":null,"abstract":"<p><strong>Purpose: </strong>Oxygen plasma treatment improves retention compared with no surface treatment of titanium; however, evidence on its esthetic effects after treatment is lacking. This study investigated the effects of oxygen plasma treatment and clear resin cement type on color differences (ΔE) in high-translucency monolithic zirconia (HTMZ).</p><p><strong>Materials and methods: </strong>A 1.0-mm-thick A2-shade HTMZ specimen group (n = 7) was evaluated using two types of clear resin cement (n = 7 each) in combination with six Ti groups (n = 7 each): non-surface-treated Ti (T), anodized Ti (A), polished Ti (P), polished Ti followed by Oxygen plasma treatment (PX), polished Ti followed by anodization (PA), and polished and anodized Ti followed by Oxygen plasma treatment (PAX). The ΔE1, ΔE2, and ΔE3 values were calculated to test the first, second, and third hypotheses, respectively. ΔE1 represented the color difference between Zir + Ti and Zir + A2D-shade composite resin, ΔE2 represented the color difference between Zir + cement + Ti and Zir + cement + A2D-shade composite resin, and ΔE3 represented the color difference between Zir + cement + Ti and Zir + Ti. All specimens were measured using a spectrophotometer, and the ΔE values were calculated relative to the corresponding control group. The data obtained were statistically analyzed using ANOVA followed by post hoc tests (P = .05).</p><p><strong>Results: </strong>All parameters significantly influenced ΔE (P < .05). Oxygen plasma treatment did not influence baseline color differences (ΔE1). However, the interaction between oxygen plasma treatment and cement type significantly affected post-cementation color changes (ΔE2 and ΔE3). The use of clear resin cement marginally reduced the color difference values across all titanium groups. All ΔE1 and ΔE2 values exceeded the clinically acceptable threshold (ΔE > 1.8), whereas all ΔE3 values remained below the perceptibility threshold (ΔE < 0.8).</p><p><strong>Conclusion: </strong>Oxygen plasma treatment did not alter ΔE, and both clear resin cement types had negligible effects that remained below the perceptibility threshold across all titanium substrates.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-30"},"PeriodicalIF":1.8,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148803909","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":"Standardized Digital Volumetric Evaluation of Removed Tooth Structure: A New Technique.","authors":"Davide Silvestri, Martina Bonvicini, Andrea Minghelli, Antonio Arena, Vincent Fehmer, Irena Sailer, Carlo Monaco","doi":"10.11607/ijp.9736","DOIUrl":"https://doi.org/10.11607/ijp.9736","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to quantify tooth structure removed during full crown preparation and test a method to evaluate preparation proximity to the pulp chamber using a digital approach.</p><p><strong>Materials and methods: </strong>To obtain 10 digital central upper incisors, five. STL and five Dicom files, achieved for clinical purposes, were matched in a dedicated software (RealGuide 5.0, 3DIEMME). The volume of each tooth was extrapolated with real shapes and dimensions. Moreover, the volume of pulp chambers was segmented and subtracted from the final volume. The virtual teeth were uploaded in a dental CAD software (DentalCAD, Exocad GmbH) and digital preparations were performed. Four preparation types with definite parameters were simulated: knife edge, chamfer, light chamfer, and knife edge with differentiated thicknesses. Data were analyzed using one-way ANOVA (a=0.05) and Tukey Test (a=0.05).</p><p><strong>Results: </strong>Statistical analysis showed a significant difference among preparations: light chamfer preparation was more conservative compared to chamfer (P=0.002) and knife edge (P=0.001) preparations. Knife edge preparation removed more tooth substance compared to knife edge preparation with differentiated thicknesses (p= 0.040).</p><p><strong>Conclusions: </strong>With the limitations of an in vitro study, it could be asserted that the tested digital technique can be considered a possible option to measure the total amount of tooth structure removed during a dental preparation. Moreover, it was possible to calculate the residual thicknesses of tooth structure with respect to the pulp chamber. This technique could be used to evaluate different types of preparations, like partial crowns, inlays, onlays, overlays, and laminate veneers.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-19"},"PeriodicalIF":1.8,"publicationDate":"2026-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148803920","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":"The Influence of Seating Load on Internal and Marginal Fit of a Fixed Dental Prosthesis: An In Vitro Study.","authors":"Hanna Josefsson, Anna Fridell, Anders Falk, Per Vult von Steyern","doi":"10.11607/ijp.9517","DOIUrl":"10.11607/ijp.9517","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to investigate how axial seating loads and shear loads influence the marginal and internal fit of a six-unit fixed dental prosthesis (FDP), using the replica technique.</p><p><strong>Materials and methods: </strong>Preparation for a six-unit FDP was made on plastic teeth, and a titanium FDP was constructed using CAD/CAM. A master epoxy cast of the abutment teeth was fabricated. The fit of the FDP was evaluated using the impression replica technique. Seating loads at 20, 35, 50, and 70 N in an axial direction and shear loads at 50 N were applied. The replicas were sectioned, and the silicone film representing cement gap was measured.</p><p><strong>Results: </strong>The results showed that seating loads of 20 N gave the largest cement gaps, and seating loads of 35 N had a great range. At seating loads of 50 N, smaller cement gaps could be seen. When testing with 70 N the cement gaps did not become any smaller. Testing with shear loads resulted in larger cement gaps compared to testing without shearing at 50 and 70 N.</p><p><strong>Conclusions: </strong>Within the limitations of the present in-vitro study, the following conclusions can be drawn. Seating loads below 50 N are insufficient to provide an acceptable fit of a six-unit FDP, whereas seating loads exceeding 50 N do not markedly improve the fit. The presence of shear loads affects the fit negatively. Further studies are needed to evaluate whether the results are applicable on other prosthetic constructions and in clinical settings.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-17"},"PeriodicalIF":1.8,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148803912","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":"Complete Dentures in Academia: Bridging Tradition and Innovation.","authors":"Wendy A Clark, Vivia Sequeira","doi":"10.11607/ijp.8934","DOIUrl":"https://doi.org/10.11607/ijp.8934","url":null,"abstract":"<p><p>Over the years, educators have repeatedly questioned the relevance of complete denture education. The evolution of implants, shrinking curriculum time, and lack of patients have helped drive this sentiment. An aging population with complex medical needs and socioeconomic backgrounds are most likely to need removable complete dentures. Over the years, prosthodontic educators have come up with many creative and innovative solutions, including the treatment of standardized patients to overcome this multi-faceted challenge. Despite their efforts, dental students are graduating with low confidence in their abilities to provide removable prosthodontic services. Integration of digital denture technologies in complete denture curricula is having a transformative impact on academia. As technology evolves, the initial apprehension of adoption is slowly being replaced by a broader understanding of the benefits of digital technology in solving issues like maximizing curriculum time and minimizing chair time through customized workflows. Technology-savvy students are readily embracing digital denture training, leading to improved understanding of conventional workflow concepts, learning digital software skills, and gaining clinical confidence. While infrastructure, faculty training, laboratory and technical support continue to challenge institutions globally, educators recognize that digital workflows will eventually outpace conventional. As private clinical practices are transitioning to become digitally equipped, there is an acknowledged responsibility to graduate dental students to be practice ready in both digital and conventional denture workflows. Education must continually evolve to meet modern needs with modern solutions, since the need for removable complete denture treatment is not going away.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-19"},"PeriodicalIF":1.8,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148803712","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}