Łukasz Lassmann, Marcelo A Calamita, Danielle Manfredini
{"title":"Myths surrounding vertical dimension of occlusion in restorative dentistry: A scoping review.","authors":"Łukasz Lassmann, Marcelo A Calamita, Danielle Manfredini","doi":"10.1111/jerd.13303","DOIUrl":"https://doi.org/10.1111/jerd.13303","url":null,"abstract":"<p><strong>Objective: </strong>This scoping review aims to clarify the concept of vertical dimension of occlusion (VDO) in prosthetic dentistry, addressing prevalent myths, and controversies regarding its clinical management and impact on the stomatognathic system.</p><p><strong>Methods: </strong>This paper critically examines common beliefs about VDO alteration and its effects on temporomandibular disorders (TMD) through an extensive literature review and an international survey. The survey included 862 general dentists and prosthodontists and explored their approaches to altering VDO and their perceptions of the clinical implications. The literature review provided a thorough analysis of existing research on VDO modification techniques, the adaptability of the stomatognathic system, and the relationship between VDO changes and TMD.</p><p><strong>Results: </strong>The survey revealed insights into dentists' perspectives on VDO, showing that while many practitioners test a new VDO due to concerns about patient adaptation, a significant majority observed that patients typically adjust well to a new VDO regardless of the technique used. The survey highlighted differing beliefs about the need for a gradual process and trial phase for VDO alteration, as well as the stability of modified VDO. Literature review suggests the stability and adaptability of VDO changes due to muscle adaptability and indicates no direct causal or curative link between VDO changes and TMD. Traditional methods for determining VDO in complete dentures may not be suitable for worn dentition, underscoring the need for tailored approaches.</p><p><strong>Conclusion: </strong>This paper suggests that the traditional belief in the need for a prolonged trial phase for VDO alterations may be reconsidered in light of evidence supporting the adaptability of the stomatognathic system. Moreover, it emphasizes the importance of distinguishing between methods suitable for complete dentures and those for managing cases of worn dentition. The purported link between VDO alterations and TMD is also found to lack scientific evidence, highlighting the need for individualized patient care based on current evidence and clinical judgment.</p>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142072944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Precision layering techniques: Integrating digital tools for accurate color matching and realistic try-ins in anterior composite restorations","authors":"Jordi Manauta DMD, Gabriela Almeida DMD, MSc, Zsolt M. Kovacs-Vajna PhD, Valentin Vervack MSc, PhD, Osama Shaalan DMD, Walter Devoto DMD, Michela Faccoli PhD, Rui I. Falacho DMD, MSc, PhD, Angelo Putignano DMD","doi":"10.1111/jerd.13297","DOIUrl":"10.1111/jerd.13297","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>This article aims to demonstrate the clinical application of a comprehensive workflow that integrates digital tools for accurate color matching, and its immediate implementation in the restoration of anterior teeth.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Considerations</h3>\u0000 \u0000 <p>Two patients demonstrating dissatisfaction regarding a maxillary central incisor had an old restoration replaced resorting to a digital workflow to enhance the predictability of the new direct restoration. OptiShade allowed the precise assessment of tooth color and the CompoShade application provided precise color and material selection, as well as the determination of a layering strategy. Precision and accuracy of the colorimeter and the composite layering application were demonstrated clinically in vivo.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Implementing a digital workflow with the integration of OptiShade measurements and the CompoShade layering recipe calculation, as well as the respective realistic try-in, enables the achievement of precise color matching for anterior composite restorations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Significance</h3>\u0000 \u0000 <p>The employment of a digital colorimeter and layering recipes simplify shade matching, and optimizes composite resin clinical use and success. The implementation of a realistic try-in, previous to the definitive restoration, allows the clinician to perform any adjustments if needed.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jerd.13297","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142072945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Stefan Vulović, Markus B Blatz, Jovan Bukorović, Nikola Živković, Aleksandar Todorović, Aleksandar Vencl, Aleksandra Milić Lemić
{"title":"Effect of acidic media on surface characteristics of highly filled flowable resin-based composites: An in vitro study.","authors":"Stefan Vulović, Markus B Blatz, Jovan Bukorović, Nikola Živković, Aleksandar Todorović, Aleksandar Vencl, Aleksandra Milić Lemić","doi":"10.1111/jerd.13301","DOIUrl":"https://doi.org/10.1111/jerd.13301","url":null,"abstract":"<p><strong>Objective: </strong>To analyze and compare the impact of acidic media on the surface characteristics of highly filled flowable resin-based composites.</p><p><strong>Materials and methods: </strong>Two hundred fifty-six specimens were divided into four groups: GUF (G-aenial Universal Flo), GUI (G-aenial Universal Injectable), TEF (Tetric EvoFlow), and FSF (Filtek Supreme Flowable Restorative). Surface characteristics were analyzed before (T0) and after specimens immersion in different media, such as gastric juice (GJ), fizzy drink (FD), citric juice (CJ), or artificial saliva (AS), for 9 h (T1) and 18 h (T2). The analyses included surface roughness (SR) measurements, where average roughness (Ra) was obtained, scanning electron microscopy (SEM) analysis, and surface hardness (SH) evaluation, with Vickers numbers (HV) reported. The differences in values among groups/subgroups within the same stage were assessed using two-way ANOVA and Tukey's post hoc test, whereas repeated measures ANOVA with Bonferroni post hoc test was performed to compare the changes in values through the stages. Data were presented as mean ± standard deviation (SD).</p><p><strong>Results: </strong>At T0, GUI and GUF revealed lower Ra values (p < 0.05), more evenness in SEM micrographs, and higher HV values (p < 0.05) than FSF and TEF. At T1 and T2, specimens of all groups/subgroups demonstrated an increase in Ra and a decrease in HV compared with T0 (p < 0.05), as well as the changes in surface morphology on SEM micrographs. The lowest Ra and highest HV values were observed in GUI group, in contrast to FSF group, and in specimens immersed in GJ.</p><p><strong>Conclusions: </strong>GUI revealed lower SR and higher SH compared to GUF and FSF both before and after exposure to acidic media. The presence of acidic media, especially GJ, significantly increases SR and decreases SH of tested materials.</p><p><strong>Clinical significance: </strong>Information on the changes in the surface characteristics of highly filled resin-based composites after exposure to acidic media may be essential for the longevity of restorations like composite veneers fabricated from these materials.</p>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142008894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The influence of the addition of titanium oxide nanotubes on the properties of 3D printed denture base materials","authors":"Anwr Hasan Mhaibes BDS, Ihab Nabeel Safi BDS, MSc, PhD, Julfikar Haider BSc Eng, MA, PhD","doi":"10.1111/jerd.13299","DOIUrl":"10.1111/jerd.13299","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Introduction</h3>\u0000 \u0000 <p>In this study, the effects of adding titanium dioxide nanotubes (TiO<sub>2</sub>) to 3D-printed denture base resin on the mechanical and physical properties of denture bases were examined for the first time.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>The specimens were digitally created using 3D builder software from Microsoft Corporation through computer-aided design. In accordance with the test specifications for transverse strength, impact strength, hardness, surface roughness, and color stability, specimens were designed and printed with certain dimensions following relevant standards. TiO<sub>2</sub> nanotubes (diameter: 15–30 nm and length: 2–3 μm) were added to the 3D-printed denture base resin (DentaBase, Asiga, Australia) at 1.0% and 1.5% by weight. Flexural strength, impact strength (Charpy impact), hardness, surface roughness, and color stability were evaluated, and the collected data were analyzed with ANOVA followed by Tukey's post hoc test (<i>α</i> = 0.05). Field emission scanning electron microscopy (FESEM) and energy dispersive x-ray spectroscopy (EDX) mapping were used to evaluate the dispersion of the nanotubes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Compared with those of the control group (0.0 wt.% TiO<sub>2</sub> nanotubes), the average flexural, impact, and hardness values of the 1.0 and 1.5 wt.% TiO<sub>2</sub> nanotube reinforcement groups increased significantly. Both nanocomposite groups showed significant color changes compared to that of the pure resin, and there was a considerable reduction in the surface roughness of the nanocomposites compared to that of the control group.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Adding TiO<sub>2</sub> nanotubes to 3D-printed denture base materials at 1.0 and 1.5 wt.% could enhance the mechanical and physical properties of the material, leading to better clinical performance.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Significance</h3>\u0000 \u0000 <p>In terms of clinical applications, 3D-printed denture base material has been shown to be a viable substitute for traditional heat-cured materials. By combining this with nanotechnology, existing dentures could be significantly enhanced, promoting extended service life and patient satisfaction while addressing the shortcomings of the current standard materials.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jerd.13299","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142000098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kanza Tahir BDS, Afeefa Abul Barakaat BDS, Umair Shaukat BDS, FCPS II, Muhammad Maaz BDS, FCPS II, Mubassar Fida BDS, MCPS & FCPS (Orthodontics), MCPS (Periodontology), MCPS (Community Dentistry), PGD HIMS, Rashna Hoshang Sukhia BDS, MSc (Epidemiology and Biostatistics), FCPS, MOrth RCSEd, FFD Orth RCSI, FHEA
{"title":"Influence of dental midline deviation with respect to facial flow line on smile esthetics—A cross-sectional study","authors":"Kanza Tahir BDS, Afeefa Abul Barakaat BDS, Umair Shaukat BDS, FCPS II, Muhammad Maaz BDS, FCPS II, Mubassar Fida BDS, MCPS & FCPS (Orthodontics), MCPS (Periodontology), MCPS (Community Dentistry), PGD HIMS, Rashna Hoshang Sukhia BDS, MSc (Epidemiology and Biostatistics), FCPS, MOrth RCSEd, FFD Orth RCSI, FHEA","doi":"10.1111/jerd.13298","DOIUrl":"10.1111/jerd.13298","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background/Objective</h3>\u0000 \u0000 <p>A contemporary concept states that dental midline deviation towards the direction of facial flow line (FFL) can mask the compromised smile esthetics. This study aimed to identify a range of midline deviations that can be perceived towards or away from the FFL influencing smile esthetics.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>A cross-sectional study was conducted using a frontal smile photograph of an adult female. The photograph was altered on Adobe Photoshop software into six different photographs by deviating the dental midlines towards and away from the FFL. A constant deviation of chin towards the left side was incorporated in all the photographs. Forty-three laypersons (LP) and dental professionals (DPs) evaluated those photographs. Independent <i>t</i>-test was used to compare the perception of dental midline deviation between LP and DPs. Simple linear regression was run to identify the factors associated with the scoring.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>A statistically significant difference was observed for picture two with 4 mm towards FFL in the perception of midline deviation between LP and DPs. LP could not perceive the midline deviations up to 4 mm while DPs were able to perceive deviations above 2 mm. The greater the age the better the scores were and female raters had a greater inclination towards poor scores.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>From 2 to 4 mm of midline deviation towards the FFL can be tolerated by LP and DPs.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Significance</h3>\u0000 \u0000 <p>These findings underscore the importance of considering facial symmetry in orthodontic and cosmetic dental treatments to optimize smile esthetics.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141992336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Triple digital guides for implant-supported restorations with alveoloplasty procedure in the esthetic zone.","authors":"Xiaohan Zhang, Chenxi Tang, Zhongyu Yu, Lin Peng","doi":"10.1111/jerd.13302","DOIUrl":"https://doi.org/10.1111/jerd.13302","url":null,"abstract":"<p><strong>Objective: </strong>The principal aim of this report is to address the challenge of integrating prosthetic crowns with natural dentition in the esthetic zone. It highlights the utilization of a prosthetically driven treatment plan, designed to ensure predictable esthetic outcomes.</p><p><strong>Clinical considerations: </strong>This report details a technique that utilizes three digital guides, all derived from a 3-dimensional digital smile design. The integration of a restoration guide, an implant drilling guide, and an alveoloplasty guide is described. These tools collectively facilitate the precise execution of both surgical and prosthetic procedures, enhancing treatment accuracy and esthetic integration.</p><p><strong>Conclusions: </strong>This technique considers the esthetic prosthetic crowns, implant positions, and alveoloplasty collectively. It enhances the predictability of esthetic outcomes in oral implantology and potentially provides an integrated prosthetically driven workflow in cosmetic dental treatments.</p><p><strong>Clinical significance: </strong>The application of multiple digital guides derived from the same prosthetically driven treatment significantly enhances the predictability of esthetic outcomes in oral implantology.</p>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141982469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Leandro Chambrone, Miguelángel Coccaro, Andrea Juliana Montaño, Gloria Inés Lafaurie
{"title":"The influence of tobacco smoking on the outcomes achieved by root coverage procedures: An updated systematic review.","authors":"Leandro Chambrone, Miguelángel Coccaro, Andrea Juliana Montaño, Gloria Inés Lafaurie","doi":"10.1111/jerd.13296","DOIUrl":"https://doi.org/10.1111/jerd.13296","url":null,"abstract":"<p><strong>Objective: </strong>This updated version of a systematic review (SR) originally published in 2009 evaluated the effect of smoking on the clinical outcomes achieved with root coverage (RC) procedures in the treatment of gingival recession (GR) defects.</p><p><strong>Materials and methods: </strong>This SR includes randomized controlled trials, controlled clinical trials, and case series with a minimum follow-up of 6 months. Eligible studies involved GR defects without interproximal tissue loss submitted to RC procedures, as well as outcome measures from smokers (i.e., those smoking 10 or more cigarettes per day at baseline) and nonsmokers, recorded separately. Three electronic databases were searched up to March 31, 2024. Random effects meta-analyses were conducted thoroughly.</p><p><strong>Results: </strong>A total of 12 studies reporting on 181 smokers and 162 nonsmokers, submitted to different RC procedures, were included. Half of these trials were originally included in the 2009 SR, whereas the other half (six studies) were included in this update. Nonsmokers experienced greater reductions in GR and gains in clinical attachment level compared to smokers. Pooled estimates comparing smokers and nonsmokers who received coronally advanced flap (CAF) alone and subepithelial connective tissue graft (SCTG) + CAF showed that nonsmokers achieved greater mean root coverage (MRC) in both treatments. Significant differences in MRC of 10.85% (95% CI, 1.92 to 19.77) and 22.04 (95% CI, 14.25 to 29.83), favoring nonsmokers, were identified for CAF and SCTG + CAF, respectively. Similarly, nonsmokers treated with SCTG + CAF displayed superior number of sites exhibiting complete root coverage (CRF) when compared with smokers (risk ratio, 4.12; 95% CI, 1.73 to 9.80).</p><p><strong>Conclusions: </strong>Smoking negatively impacts the outcomes of RC procedures, particularly those achieved by SCTG-based procedures.</p><p><strong>Clinical significance: </strong>Smoking was linked to poorer RC outcomes. These outcomes highlight the critical need to integrate smoking cessation into periodontal treatment plans.</p>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141975788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cover Image, volume 36, Issue 9","authors":"","doi":"10.1111/jerd.13304","DOIUrl":"https://doi.org/10.1111/jerd.13304","url":null,"abstract":"The cover image is based on the article Esthetic outcomes in orthodontics through digital customization with a lingual appliance system by Andre Weissheimer et al., https://doi.org/10.1111/jerd.13244.\u0000image","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141919823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cover Image, volume 36, Issue 9","authors":"","doi":"10.1111/jerd.13304","DOIUrl":"10.1111/jerd.13304","url":null,"abstract":"<p>The cover image is based on the article <i>Esthetic outcomes in orthodontics through digital customization with a lingual appliance system</i> by Andre Weissheimer et al., https://doi.org/10.1111/jerd.13244.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jerd.13304","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141919376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Belén Morón-Conejo DDS, MSc, Santiago Berrendero DDS, PhD, Shizhu Bai DDS, PhD, Francisco Martínez-Rus DDS, PhD, Guillermo Pradies DDS, PhD
{"title":"Fit comparison of interim crowns manufactured with open and proprietary 3D printing modes versus milling technology: An in vitro study","authors":"Belén Morón-Conejo DDS, MSc, Santiago Berrendero DDS, PhD, Shizhu Bai DDS, PhD, Francisco Martínez-Rus DDS, PhD, Guillermo Pradies DDS, PhD","doi":"10.1111/jerd.13295","DOIUrl":"10.1111/jerd.13295","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>This study aimed to assess the fit of interim crowns produced using DLP-based 3D printing with different manufacturing workflows—open and proprietary—versus milling technology.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A total of 120 crowns were evaluated using the replica technique. The control group (Mill, <i>n</i> = 30) was manufactured via subtractive technology. Experimental groups were printed using a DLP printer (SprintRay Pro95). In the proprietary mode (SR100, <i>n</i> = 30), manufacturer resin was used with a 100-μm layer thickness (LT) and a splashing cleaning postprocessing. In the open mode, validated resin was used. Group B100 (<i>n</i> = 30) had a 100-μm LT, and group B50 (<i>n</i> = 30) had a 50-μm followed by postprocessing in an ultrasonic bath with full immersion in isopropyl alcohol. Kruskal–Wallis tests with Bonferroni correction was applied after normal analysis (<i>α</i> = 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Group B50 exhibited the best overall fit (123.87 ± 67.42 μm), which was comparable to the gold standard Milling group, which demonstrated the lowest marginal fit (<i>p</i> = 0.760). SR100 showed significantly poorer performance compared to Mill, B50, and B100 (<i>p</i> < 0.001).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>3D printed and milled interim crowns generally demonstrated clinically acceptable fit, with the exception of the SR100 group. Postprocessing notably influenced crown fit, with the open mode with total immersion in isopropyl alcohol being superior.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Significance</h3>\u0000 \u0000 <p>The present study demonstrates that the selection of an optimal manufacturing and postprocessing workflow results in superior fit for interim crowns. This enables dental professionals to evaluate protocols and ensure reliable outcomes with improved clinical outcomes in interim crown fabrication.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jerd.13295","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141909821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}