The International journal of prosthodontics最新文献

{"title":"Maxillary All-on-6 Treatment Using Zygomatic Implants. Bone Loss Evaluation by CBCT: 3-Year Follow-up.","authors":"Amira Mokhtar Abouelhuda, Abdallah Mohammed Ibrahim, Mohammed Hassan Elkenawy, Salah Abd ElFattah Hegazy","doi":"10.11607/ijp.8744","DOIUrl":"10.11607/ijp.8744","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate radiographic changes around six implants (two posterior zygomatic implants and four conventional implants) used with fixed detachable restorations in patients with severe maxillary posterior resorption with either polyether ether ketone (PEEK) or titanium frameworks.</p><p><strong>Materials and methods: </strong>In total, 12 maxillary edentulous patients were rehabilitated with six implants, including two posterior zygomatic and four conventionally placed implants for each patient following All-on-6 distribution and opposing a mandibular All-on-4 implant-retained fixed detachable prosthesis. A two-stage surgical unloaded healing protocol was performed. According to framework and teeth materials, there were two groups: group 1- CAD/CAM-milled framework from modified BioHPP PEEK bonded to PMMA crowns; and group 2-screwretained CAD/CAM-milled framework from titanium bonded to zirconia crowns. Bone loss evaluation for six implants was performed using CBCT at the time of delivery (T0), after 1 year (T1), and after 3 years (T2).</p><p><strong>Results: </strong>There was a statistically significant difference in bone loss between the PEEK and titanium groups. There was less bone loss in the PEEK group around anterior conventional implants at buccal (P = .01), mesial (P < .001), and distal surfaces (P < .001) and for zygomatic implants at buccal (P = .004) and palatal surfaces (P = .003).</p><p><strong>Conclusions: </strong>Within the limitations of the study, the full-arch PEEK and titanium frameworks of fixed-detachable prostheses used with an All-on-6 distribution using zygomatic implants for rehabilitation of maxillary edentulous atrophied posterior arches was a promising treatment approach. Less bone loss was observed with the PEEK framework restorations combined with the PMMA crowns group.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"46-54"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41165696","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":"Color Alterations, Flexural Strength, and Microhardness of 3D-Printed Resins Treated in Different Coloring Agents.","authors":"Kevser Kurt Demirsoy, S Kutalmış Buyuk, Serdar Akarsu, Melek Hilal Kaplan, Huseyin Simsek, Feridun Abay","doi":"10.11607/ijp.9043","DOIUrl":"10.11607/ijp.9043","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the color alterations, flexural strength, and microhardness properties of two different 3D-printed permanent crown resins.</p><p><strong>Materials and methods: </strong>Samples were produced from two different 3D-printed permanent crown resins: Group 1 (Saremco Crowntec, Saremco Dental) and Group 2 (P-crown V2, Senertek). Color changes (ΔE values), flexural strength, and Vickers hardness number (VHN) of the samples were calculated. Data were analyzed with Shapiro-Wilk normality test, independent t test, and Mann-Whitney U tests. The significance level was accepted as P < .05.</p><p><strong>Results: </strong>ΔE values for red wine were found to be significantly higher in Group 1 (6.43 ± 2.26; P < .001). The flexural strength values (MPa) of Group 1 were significantly higher than Group 2 in all three solutions (P < .001). There was no significant difference between the VHN values of the samples kept in wine and coffee solutions (P = .271; .827).</p><p><strong>Conclusions: </strong>3D-printing resins are affected at different levels by coloring solutions. Microhardness and flexural strength of 3D-printed samples kept in different coloring agents are different. In the use of 3D-printing resins, product selection should be made by taking into account the individual factors such as the eating and drinking habits of the patient and the physical properties expected from the sample.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"111-118"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140898579","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 'One Customized Abutment One Time' Concept-An Innovative Technique for Optimizing Immediacy and Digital Protocols.","authors":"Mohit Kheur, Supriya Kheur, Tabrez Lakha, Prajakta Dongre, Ronald E Jung, Daniel Thoma","doi":"10.11607/ijp.8603","DOIUrl":"10.11607/ijp.8603","url":null,"abstract":"<p><p>Multiple disconnection and reconnection of abutments has been known to affect the mucosal barrier around implants, leading to marginal bone loss (MBL). This clinical report describes a novel technique that amalgamates the benefits of digital technologies including the fabrication of surgical guides for implant placement, customized hybrid zirconia abutments, and all-ceramic lithium disilicate crowns prior to implant placement. Correct 3D implant positioning, along with immediate placement of the definitive hybrid customized abutment and a lithium disilicate crown, have the potential to reduce treatment time, visits, and costs while delivering optimal esthetic outcomes.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"138-143"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41224511","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 Journey of Additive Manufacturing in Prosthodontics from the Early Dawn till the Current State of Art: A Narrative Review.","authors":"Ahmed Hytham, Reham B Osman","doi":"10.11607/ijp.8998","DOIUrl":"10.11607/ijp.8998","url":null,"abstract":"<p><p>Additive manufacturing (AM), also known as 3D printing, has become one of the pillars of digital technology in the dental field of prosthodontics. With the burgeoning development in preexisting AM technology and the evolution of new techniques, which are concurrent with the development of printable biomaterials, the application range of the technology has broadened from the construction of diagnostic models to more complex applications such as maxillofacial prosthetics and implant planning. A full understanding of the technology and its related fabrication parameters will enable the maximum benefit from such technology. Therefore, the aim of this review is to represent a range of AM technologies so that prosthodontists and dental technicians can evaluate more closely the advantages and disadvantages of each technique, the application of technology in the field of prosthodontics, areas of current research in the field, and recommendations for areas of future research.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"126-137"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141289069","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":"A Novel Digital Approach Using Extended Design Scan Bodies for Intraoral Scanning and Fabrication of Full-Arch Implant-Supported Restorations A Proof-of-Concept Case Report and Technical Notes.","authors":"Peter Gehrke, Grzegorz Wasiluk, Carsten Fischer","doi":"10.11607/ijp.9279","DOIUrl":"https://doi.org/10.11607/ijp.9279","url":null,"abstract":"<p><strong>Purpose: </strong>To address the challenges of obtaining accurate digital impressions for the fabrication of fixed restorations on multiple implants in full-arch edentulous cases.</p><p><strong>Materials and methods: </strong>An approach to the use of extended design scan bodies (EDSBs) and advanced digital technologies in full-arch implant rehabilitation is presented. Clinical and laboratory treatment sequences are illustrated, focusing on intraoral scanning, restorative materials, and digital fabrication techniques.</p><p><strong>Results: </strong>EDSBs provide accurate digital impression results, maintaining precision over longer distances and proving effective for both fixed and removable implant restorations.</p><p><strong>Conclusions: </strong>Using EDSBs with L-shaped and T-shaped extensions creates a stable reference framework during scanning, overcoming the lack of reliable landmarks on edentulous mucosa and enhancing digital impression accuracy and clinical outcomes.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"1-32"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143070162","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":"A Lifelong 'Dental Identity': New Opportunities in the Era of Digital Dentistry.","authors":"Frauke Müller","doi":"10.11607/ijp.2025.1e","DOIUrl":"https://doi.org/10.11607/ijp.2025.1e","url":null,"abstract":"","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"38 1","pages":"7-8"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143071182","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":"Long-Term Peri-implant Health and Papilla Formation at Healed Sites with Chairside Provisionalization of Single-Tooth Implants: A Prospective Case Series.","authors":"Jonas Lorenz, Maximilian Blume, Frank Schwarz, Paul Weigl, Shahram Ghanaati, Rober A Sader","doi":"10.11607/ijp.8719","DOIUrl":"10.11607/ijp.8719","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate the effect of immediate provisionalization of single-tooth implants at healed sites for peri-implant soft-tissue conditions, focusing on papilla formation around single implants.</p><p><strong>Materials and methods: </strong>In total, 12 patients received a total of 12 implants in the incisor, canine, or premolar region of the maxilla or mandible at healed sites with immediate chairside provisionalization. After 4 months, the temporary crown was replaced with the permanent crown. After 40 ± 13.1 months, clinical follow-up was conducted, assessing probing pocket depth (PPD), bleeding on probing (BoP), mucosal recession (MR), and width of keratinized mucosa (KM). Papilla index (PI) was determined immediately after implant placement (t0), before removing the temporary crown (t1), 4 weeks after delivery of the definitive crown (t2), and at the final follow-up examination (t3) to evaluate papilla formation and its change over time.</p><p><strong>Results: </strong>None of the implants were lost. The mean PPD was 2.5 ± 0.39 mm, and BoP of 25% and 3.5 mm of KM were observed at the final follow-up. No implants showed MR. PI increased in all patients from 1.5 ± 0.45 at t0 to 2.4 ± 0.56 at t1, 2.6 ± 0.47 at t2, and 3.0 ± 0 at t3. The increase in PI between t0 and each individual timepoint from t1 to t3 showed statistical significance.</p><p><strong>Conclusions: </strong>The present results indicate the suitability and benefit of immediate provisionalization to achieve favorable peri-implant soft tissue conditions and papilla formation.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"27-34"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139975270","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":"Conversion of the Anatomical Crown of a Natural Tooth to an Interim Implant-Retained Restoration for Enhanced Esthetics and Soft Tissue Stability in the Esthetic Zone: A Clinical Report.","authors":"Konstantinos Michalakis, Dimitra Vasilaki, Christos Kalpidis, Thomas Taylor","doi":"10.11607/ijp.8841","DOIUrl":"10.11607/ijp.8841","url":null,"abstract":"<p><p>Immediate nonfunctional loading of an implant in the anterior region is a documented treatment modality with high success rates. This therapeutic approach is frequently used to overcome esthetic and functional problems during the provisionalization period but also because it provides better support of peri-implant soft tissues. For that purpose, an implant-supported resin restoration, either traditionally or digitally made, is used. This clinical report describes the modification of a patient's natural tooth, which was previously fractured, to be used as an implant-supported provisional restoration to obtain better esthetics and preservation of the soft tissues in their original, pre-extraction position.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"119-125"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138292635","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 Using Cheek Retractors on Patient Satisfaction and Trueness of Peripheral Borders in Maxillary Digital Scans for Totally Edentulous Patients: An In Vivo Study.","authors":"Carmen Saadeh, Hani Tohme, Ghida Lawand, Nicolas Khoury, Carole Yared","doi":"10.11607/ijp.8895","DOIUrl":"10.11607/ijp.8895","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the effect of cheek retractors on the accuracy of capturing peripheral borders in totally edentulous digital scans by comparing the conventional impression technique to digital scans made using two different cheek retractors.</p><p><strong>Materials and methods: </strong>In total, 16 edentulous maxillary impressions were made using three techniques: (1) the conventional impression technique, using modeling thermoplastic compound and zinc oxide eugenol paste; (2) the digital intraoral scanning technique, using the DIO scan retractor (DIO); and (3) the digital intraoral scanning technique, using the Brånemark lip retractor (BRAN). The control impressions of each patient were poured, scanned using a desktop scanner, and transferred into a 3D-analysis software. DIO and BRAN groups were scanned using an intraoral scanner, imported, and superimposed, using best-fit algorithm on the corresponding control. The root mean square for the whole surface and for particular regions of interest were calculated to assess the degree of trueness. Patient perception of the impression techniques was the secondary outcome. Statistical analyses were performed using one-sample t test and Wilcoxon test (α = .05).</p><p><strong>Results: </strong>Significant discrepancies were found for BRAN and DIO compared to the control. No significant discrepancies were found when comparing RMS of BRAN and DIO at different regions. Scan retractors had a significant impact on patient satisfaction, with patients preferring DIO.</p><p><strong>Conclusions: </strong>Edentulous intraoral scans made using cheek retractors had similar deviations when compared to each other but diverged from the conventional impression in the edentulous maxilla. Patient preference for intraoral scans over conventional impressions was confirmed. The use of different retraction methods during intraoral scanning of totally edentulous maxillary arches does not affect the peripheral border registration.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"0 0","pages":"55-63"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140295767","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":"Survival Analysis and Prevalence of Biologic and Technical Complications in Fully Edentulous Patients Rehabilitated with Different Modalities of Complete Dentures: A Retrospective Study in Zurich.","authors":"Ilijana Milisavljevic, Porawit Kamnoedboon, Murali Srinivasan","doi":"10.11607/ijp.8691","DOIUrl":"10.11607/ijp.8691","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the prevalence of biologic and technical/mechanical complications in an edentulous older population rehabilitated with complete removable dental prostheses (CDs) and overdentures (toothretained [ODs], implant-retained [IODs]).</p><p><strong>Materials and methods: </strong>Patient records of adults (> 60 years) rehabilitated with CDs, ODs, and IODs were included. Demographic information (age, sex), information on the prostheses type, number and type of biologic/prosthetic complications, and the number and time of the complications were extracted. Kaplan-Meier model was used for statistical analyses.</p><p><strong>Results: </strong>A total of 162 patients (mean age: 74.5 ± 9.45 years; n = 224 prostheses: CD = 172, OD = 21, IOD = 31) were included. The average period of function in situ was 19.70 ± 27.66, 32.72 ± 27.84, and 31.73 ± 32.67 months for the CDs, ODs, and IODs, respectively. Five prostheses failed. Survival analysis revealed an overall survival rate (SR) of 97.8%, with individual 5-year cumulative survival probability of 96.1% for CDs, 94.1% for ODs, and 100.0% for IODs. There were no significant survival differences between maxillary and mandibular prostheses within each type of rehabilitation. In the maxilla, no significant differences were found in maintenance visit times due to prosthodontic complications among the different types of prostheses. Patients with mandibular CDs required maintenance visits earlier compared to mandibular ODs (P < .001) and IODs (P < .001). Patients with mandibular ODs also required maintenance visits earlier than those with mandibular IODs (P = .005).</p><p><strong>Conclusions: </strong>Rehabilitation of the edentulous arches, whether with CDs, ODs, or IODs, is a predictable treatment modality with high SRs. Differences in maintenance visit times were observed, with CDs and ODs in the mandible requiring earlier visits compared to IODs.</p>","PeriodicalId":94232,"journal":{"name":"The International journal of prosthodontics","volume":"38 1","pages":"64-75"},"PeriodicalIF":0.0,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143071113","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}