The Journal of Indian Prosthodontic Society最新文献

{"title":"Effect of photofunctionalization with and without vibration on osseointegration of titanium implants: A comparative in vitro study.","authors":"Priyanka Patra, Rajyalakshmi Ravuri, Praveen Mamidi, Gautam Kumar Annojjula, Tejaswi Manasa Emany, Chittaranjan Bogishetty","doi":"10.4103/jips.jips_194_25","DOIUrl":"https://doi.org/10.4103/jips.jips_194_25","url":null,"abstract":"<p><strong>Aim: </strong>Enhancing early cell-implant interaction is vital for successful osseointegration. This in vitro study aimed to evaluate the combined effect of photofunctionalization and low-frequency mechanical vibration on osteoblast cells derived from human placental tissue cultured on titanium surfaces.</p><p><strong>Settings and design: </strong>Following approval from the Institutional Ethics Committee and informed consent, a controlled in vitro experimental study was conducted in the Department of Prosthodontics in collaboration with a certified cell culture laboratory.</p><p><strong>Materials and methods: </strong>Osteoblast cells were isolated and cultured. Titanium implant surface was photofunctionalized using ultraviolet C (UV-C) light (254 nm) for 48 h. Cells were seeded onto the implant surface and divided into three groups: Group 1: Control (untreated titanium), Group 2: UV-treated titanium, and Group 3: UV-treated titanium implant with mechanical vibration (20 Hz for 3 min/day for 3 days) to osteoblast cells. Cell proliferation was assessed using MTT assay, mineralization via Alizarin Red S staining, and osteogenic gene expression (runt-related transcription factor-2, Alkaline phosphatase, OCN) through reverse transcription polymerase chain reaction.</p><p><strong>Statistical analysis used: </strong>Data were analyzed using analysis of variance with Tukey's post hoc test (P < 0.05).</p><p><strong>Results: </strong>The combination of photofunctionalization and mechanical vibration (Group 3) significantly enhanced cell proliferation, mineral deposition, and osteogenic gene expression compared to Groups 1 and 2 (P < 0.05). While photofunctionalization alone improved osteoblast activity, the synergistic application of mechanical vibration further amplified the response.</p><p><strong>Conclusion: </strong>The combination of photofunctionalization and low-frequency vibration significantly enhances the osteogenic response of osteoblast cells to titanium, indicating its potential to improve implant osseointegration.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 4","pages":"334-339"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145329787","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":"Immediate complete denture rehabilitation using combined digital-functional impression technique and three-dimensional-printed occlusal templates.","authors":"Dhitika Handa, Abhijit Ashok Patil, Ajay Sabane, Rupali Patil","doi":"10.4103/jips.jips_353_25","DOIUrl":"https://doi.org/10.4103/jips.jips_353_25","url":null,"abstract":"<p><p>Integration of digital technology in prosthodontics enables precise and predictable outcomes. A hybrid digital-conventional workflow combines the accuracy of digital protocols with the reliability of traditional techniques. A 46-year-old male with generalized aggressive periodontitis required full-mouth extraction and immediate dentures. Intraoral scans were captured at the existing vertical dimension and used to design custom trays in EXOCAD. The trays, three-dimensional-printed with windows for natural teeth, facilitated border molding and final impressions for soft tissue capture. These impressions were digitized, superimposed on intraoral scans, and used to create a virtual model, perform virtual extractions, and fabricate definitive dentures. The digital approach improved patient comfort, accelerated planning, and enhanced accuracy, while conventional steps ensured an optimal peripheral seal in scanner-inaccessible areas. The technique delivered a functionally stable and esthetically satisfactory outcome.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 4","pages":"377-382"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145329807","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":"Role of prosthodontists in managing peri-implantitis.","authors":"Shilpa R Shetty","doi":"10.4103/jips.jips_476_25","DOIUrl":"10.4103/jips.jips_476_25","url":null,"abstract":"","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 4","pages":"283-284"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145329810","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 glazed and polished 3Y-TZP and 5 mol% yttria-stabilized partially stabilized zirconia on fibroblast behavior: In vitro study.","authors":"Mahima Ahuja, Umesh Y Pai, Vignesh Kamath, Ann Sales, Shobha J Rodrigues","doi":"10.4103/jips.jips_345_25","DOIUrl":"https://doi.org/10.4103/jips.jips_345_25","url":null,"abstract":"<p><strong>Aim: </strong>To evaluate and compare the viability, proliferation, and adhesion of HGFs on glazed and polished surfaces of 3 mol% yttria-stabilized tetragonal zirconia (3Y-TZP) and 5 mol% yttria-stabilized partially stabilized zirconia (5Y-PSZ).</p><p><strong>Settings and design: </strong>This in vitro experimental study was conducted to evaluate the viability, proliferation, and adhesion of HGFs on zirconia discs with different compositions (3Y-TZP and 5Y-PSZ) and surface treatments (glazed and polished). The study employed a comparative design with four groups based on the combination of material type and surface finish.</p><p><strong>Materials and methods: </strong>Sixty-four zirconia discs (n = 16/group) were prepared in four groups: 3Y-TZP glazed, 3Y-TZP polished, 5Y-PSZ glazed, and 5Y-PSZ polished. HGFs were cultured on each specimen. Cell viability was assessed using MTT assay at 24 h and 7 days. Cell morphology and adhesion were analyzed using the scanning electron microscope (SEM).</p><p><strong>Statistical analysis used: </strong>Statistical analysis was performed using the two-way analysis of variance (ANOVA) and Tukey's post hoc test.</p><p><strong>Results: </strong>All groups showed >70% cell viability at both time points, indicating noncytotoxicity. Polished zirconia surfaces exhibited significantly higher cell viability than glazed surfaces at 7 days (P < 0.05), with 5Y-PSZ polished showing the highest viability (95.4%). SEM revealed better fibroblast spreading and filopodia formation on polished surfaces. Two-way ANOVA indicated significant effects of material type and surface finish on cell viability (P < 0.05).</p><p><strong>Conclusion: </strong>Polished zirconia surfaces, irrespective of yttria content, enhanced HGF viability and adhesion compared to glazed surfaces. These findings suggest that polishing promotes superior soft-tissue integration and may contribute to the long-term biological success of zirconia restorations.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 4","pages":"362-368"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145329804","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":"Shear bond strength of intraoral porcelain repair systems to various CAD/CAM restorative materials.","authors":"Yusuf Polat, Gözde Sarak, Zeynep Özkurt-Kayahan","doi":"10.4103/jips.jips_113_25","DOIUrl":"https://doi.org/10.4103/jips.jips_113_25","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this research was to evaluate and compare the shear bond strength (SBS) of two intraoral porcelain repair systems to various restorative materials with and without thermocycling.</p><p><strong>Settings and design: </strong>The study employed an in vitro design with a disc-shaped samples (7 mm × 3 mm) bonded to repair systems, including thermocycling and SBS test with a universal testing machine.</p><p><strong>Materials and methods: </strong>Two hundred polyetheretherketone (PEEK), cobalt-chromium, zirconia, titanium, and glass ceramic samples were prepared with the computer-aided design/computer-aided manufacture system according to the ISO 6872:2024 (n = 40). After all samples were polished with silicon carbide sandpaper, the bonding surface was roughened with 50 µm Al2O3. Then, all materials were divided into two subgroups (n = 20) according to the repair system used: Bredent and Clearfil repair systems. After sample preparation, each group was divided into two subgroups (n = 10) and subjected to different storage conditions, short- and long-term storage (with 5000 thermocycles). SBS tests were performed on all samples, and fracture types were examined.</p><p><strong>Statistical analysis used: </strong>The data were analyzed using two-way analysis of variance and Tukey's honestly significant difference test. Significance was determined as P < 0.05.</p><p><strong>Results: </strong>In short-term storage, when Clearfil repair system was evaluated, the lowest SBS values were recorded for glass ceramic (7.88 ± 1.63 MPa), and the highest SBS values were recorded for titanium (14.92 ± 3.65 MPa) (P < 0.05). When Bredent repair system was evaluated in short-term storage, the lowest SBS values were recorded for zirconia (8.33 ± 1.84 MPa), and the highest SBS values were recorded for titanium (15.77 ± 5.79 MPa) (P < 0.05). Long-term storage decreased the bonding between the materials and the repair systems.</p><p><strong>Conclusions: </strong>The Clearfil system, used on metal, titanium, and zirconia, and the Bredent system used on PEEK, metal, and titanium materials, demonstrated a minimum SBS of 10 MPa in the short term, suggesting their appropriateness for clinical use. Long-term storage decreased the bonding between the materials and the repair systems.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 4","pages":"295-304"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145329830","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 optical, surface, and microbiological properties of computer-aided design/computer-aided manufacturing-milled and three-dimensional-printed denture bases after aging by thermocycling: An in vitro study.","authors":"Victor Augusto Alves Bento, João Mateus Cavalaro Sayeg, Cleber Davi Del Rei Daltro Rosa, Leonardo Ferreira de Toledo Piza Lopes, Maria Carolina Silva Marques, Eduardo Piza Pellizzer","doi":"10.4103/jips.jips_88_25","DOIUrl":"https://doi.org/10.4103/jips.jips_88_25","url":null,"abstract":"<p><strong>Aim: </strong>The purpose of this study was to evaluate the surface properties, optical stability, and Candida albicans adhesion to resins used in the base of conventional, milled, and three-dimensional (3D)-printed dentures after aging by thermocycling.</p><p><strong>Settings and design: </strong>In vitro study.</p><p><strong>Materials and methods: </strong>A total of 96 resin samples were manufactured, divided into 3 resin groups (n= 32) (conventional thermally activated, milled and 3D-printed), and subdivided into 4 aging times by thermocycling at temperatures 5 ± 1°C and 55 ± 1°C in 24h, 5.000, 10.000, 20.000 cycles (n = 8), evaluating the adhesion of C. albicans, optical stability, surface roughness, hydrophilicity, and energy surface.</p><p><strong>Statistical analysis used: </strong>Data were evaluated by two-way ANOVA and Tukey's test for pairwise comparisons (P < .05).</p><p><strong>Results: </strong>Conventional resin exhibited lower C. albicans colonization, with significant reductions at T1 (1.05±1.38) (P = .003) and T3 (3.67 ±1.86) (P = .023) compared to other resins. The conventional resin had significantly the lowest ΔE00 value at T0 (0.98 ± 0.41) (P < .05). The milled resin had significantly lower roughness value at T0 (0.031 ± 0.00) (P < .05). The conventional resin had significantly higher surface energy values compared to the other resins (P < .05). The conventional resin exhibited a significantly lower water contact angle than the other resins (P < .001).</p><p><strong>Conclusion: </strong>The conventional thermally activated resin showed less adhesion of C. albicans than the resins manufactured by CAD/CAM. Among CAD/CAM resins, milled resin showed better properties than 3D-printed resin over time.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 4","pages":"312-319"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145329766","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":"Mapping the trends of peer-reviewed research on platform switching - A bibliometric analysis.","authors":"Abrar Ahmad Hakeem, Mohammad Muneeb Mubashir","doi":"10.4103/jips.jips_220_25","DOIUrl":"10.4103/jips.jips_220_25","url":null,"abstract":"<p><strong>Aim: </strong>To conduct a bibliometric analysis of peer-reviewed literature concerning the platform switching (PS) concept in dental implants, assessing publication trends, influential authors, leading journals, and prevalent research themes.</p><p><strong>Settings and design: </strong>Bibliometric analysis based on peer-reviewed publications retrieved from major scientific databases.</p><p><strong>Materials and methods: </strong>A comprehensive literature search was conducted across five electronic databases: PubMed, Scopus, Web of Science, Cochrane, and ScienceDirect, covering publications from 2000 to 2025. Search terms included \"platform switching,\" \"dental implants,\" \"marginal bone loss,\" and \"bibliometric analysis.\" Inclusion criteria comprised peer-reviewed original articles, systematic reviews, meta-analyses, and clinical studies focusing on PS. Bibliometric indicators, including publication counts, citation analysis, authorship patterns, and keyword co-occurrence, were analyzed using bibliometric tools.</p><p><strong>Statistical analysis used: </strong>Descriptive bibliometric statistics were applied, including publication trends, citation frequencies, and network visualizations for keyword co-occurrence and authorship patterns.</p><p><strong>Results: </strong>The analysis revealed a substantial increase in PS-related publications after 2005, peaking in 2015. Influential contributors include Lazzara, Porter, and Atieh. The Journal of Periodontology, Clinical Oral Implants Research, and the Journal of Clinical Medicine were identified as leading journals in this domain. Prominent research themes focus on marginal bone preservation, implant-abutment interface design, and the biomechanical implications of PS.</p><p><strong>Conclusion: </strong>This bibliometric analysis demonstrates a growing scholarly interest in platform switching within implant dentistry. The concentration of research within specific journals and among a limited number of authors highlights the need for broader dissemination and diversification in future investigations.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 4","pages":"285-294"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145329739","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 biointegration and hydrophilicity of titanium and zirconia after vacuum-assisted ultraviolet-functionalization - An in vitro study.","authors":"Neelima Manoj, Ahila Singaravel Chidambaranathan, Muthukumar Balasubramanium","doi":"10.4103/jips.jips_338_25","DOIUrl":"https://doi.org/10.4103/jips.jips_338_25","url":null,"abstract":"<p><strong>Aim: </strong>To evaluate the hydrophilicity and cellular response of titanium and zirconia following vacuum-assisted ultraviolet (UV) photofunctionalization using the MG-63 cell line.</p><p><strong>Setting and design: </strong>An in vitro study.</p><p><strong>Materials and methods: </strong>12-disc-shaped titanium (Grade 4) and zirconia (10 mm diameter × 1 mm thickness) specimens were fabricated according to ISO 19403-2:2020. Specimens were divided into six groups based on the duration of photofunctionalization: Group 1 (control), Group 2 (15 s), Group 3 (30 s), Group 4 (45 s), Group 5 (60 s), and Group 6 (90 s). Surface wettability was evaluated using goniometer. Cell proliferation was assessed at 24, 48, and 72 h using the methyl thiazolyl diphenyl-tetrazolium bromide assay.</p><p><strong>Statistical analysis used: </strong>one-way analysis of variance with Tukey's post hoc test.</p><p><strong>Results: </strong>Titanium specimens showed a reduction in contact angle from 109.74° ± 0.72° in the control group to 92.33° ± 0.52° after 60 s of treatment, while zirconia showed a decrease in contact angle from 74.48° ± 0.53° to 61.27° ± 0.51°. The highest cell proliferation was observed in 60-s titanium group, with mean viabilities of 63.51%, 64.19%, and 70.21% at 24, 48, and 72 h. Zirconia demonstrated increased proliferation of 47.29%, 49.38%, and 62.70% at the same time intervals. Absorbance values at 570 nm for 60-s treatment followed a similar trend, confirming enhanced metabolic activity. Statistical analysis revealed significant differences among groups (P < 0.0001).</p><p><strong>Conclusion: </strong>Vacuum-assisted UV photofunctionalization effectively enhanced the surface hydrophilicity and promoted cellular proliferation on titanium and zirconium. 60-s treatment duration yielded the most favorable biological outcomes for zirconium, supporting its potential for improving early-stage biointegration in implant applications.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 4","pages":"353-361"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145329741","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 the effect of temporomandibular joint disorders on craniocervical posture: A cross-sectional study.","authors":"Sanath Kumar Shetty, Anusha Ishwarappa Katageri, Rajesh Shetty, Mallikarjuna Ragher, Uma Mayoor Prabhu","doi":"10.4103/jips.jips_273_25","DOIUrl":"https://doi.org/10.4103/jips.jips_273_25","url":null,"abstract":"<p><strong>Aims: </strong>The aim of the study was to evaluate the effect of TMDs on craniocervical posture by assessing head-shoulder angle asymmetry and craniovertebral angle (CVA).</p><p><strong>Settings and design: </strong>A cross-sectional study involving individuals with and without clinical signs and symptoms of temporomandibular joint disorders.</p><p><strong>Materials and methods: </strong>Eighty-two participants were divided into a test group (n = 41) with TMD signs and a control group (n = 41). TMDs were assessed using a structured questionnaire and the Diagnostic Criteria/TMD (2014) criteria. Postural evaluation included photographic analysis of head-shoulder angle asymmetry using GNU Image Manipulation Program software and CVA measurement using a goniometer.</p><p><strong>Statistical analysis used: </strong>Independent t-tests, Mann-Whitney U-tests, and Spearman's correlation.</p><p><strong>Results: </strong>FHP was more prevalent among participants with TMD (57.5%), with a mean CVA of 49.37° ± 3.90° compared to controls (25%), which was statistically significant (P < 0.05). The mean asymmetry in head-shoulder angle was 5.62° ± 1.32° in the TMD group and 1.03° ± 0.89° in the control group.</p><p><strong>Conclusions: </strong>TMDs are associated with increased head-shoulder asymmetry and FHP. These findings highlight the importance of postural assessment in TMD management.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 4","pages":"327-333"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145329800","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":"Comparative evaluation of marginal fit of three-dimensional-printed provisional crowns with two different build angles and layer heights using triple scan protocol: An in vitro study.","authors":"Harshala Prashant Manchalwar, Suryakant Deogade, Sattyam Wankhade, Sulekha Gosavi, Jithendra Kumar Potti","doi":"10.4103/jips.jips_318_25","DOIUrl":"10.4103/jips.jips_318_25","url":null,"abstract":"<p><strong>Aims: </strong>This in vitro study evaluated how build angle and layer thickness affect the marginal fit of provisional crowns fabricated by digital light processing (DLP) 3D printing, an important consideration for restoration success.</p><p><strong>Settings and design: </strong>This was an in-vitro study.</p><p><strong>Materials and methods: </strong>Twenty-four provisional crowns were 3D-printed using a DLP printer and divided into four groups (n = 6 each) based on build angle (150° vs. 180°) and layer height (20 µm vs. 40 µm): Group I - 150°, 20 µm, Group II - 180°, 20 µm, Group III - 150°, 40 µm, and Group IV - 180°, 40 µm. Using a triple-scan protocol, researchers scanned the master die, the internal surface of each crown, and the seated crown.</p><p><strong>Statistical analysis used: </strong>The Kruskal-Wallis test and Bonferroni post hoc analysis were used.</p><p><strong>Results: </strong>All groups demonstrated clinically acceptable marginal fit, but the differences were statistically significant (P < 0.05). The best fit was achieved in Group IV (180° build angle and 40 µm layer height) with a marginal gap of 0.05 ± 0.02 µm. The least accurate was Group II (180°, 20 µm), showing a gap of 0.27 ± 0.25 µm.</p><p><strong>Conclusions: </strong>From the study, it was determined that 3D-printed provisional crowns with higher build angles and larger layer heights, i.e. Group IV: build angle 180° and layer height 40 µm, exhibited improved marginal fit.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 4","pages":"320-326"},"PeriodicalIF":1.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145329806","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}