Mostafa Mohamed Sobhy Tahoon, Nouran Mahmoud Abdelnabi, Ahmed Mostafa Esmat Elsisy, Amani Ramadan Ali Moussa, Amal Rekaby Taha
{"title":"3D-Printed anterior repositioning splint versus stabilization splint for patients with anterior disc displacement with reduction: A randomized cross-over clinical trial.","authors":"Mostafa Mohamed Sobhy Tahoon, Nouran Mahmoud Abdelnabi, Ahmed Mostafa Esmat Elsisy, Amani Ramadan Ali Moussa, Amal Rekaby Taha","doi":"10.4103/jips.jips_8_25","DOIUrl":"https://doi.org/10.4103/jips.jips_8_25","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this study was to compare the improvement of pain between a digitally constructed stabilization splint (SS) and anterior repositioning splint (ARS) for patients with anterior disc displacement with reduction (DDWR).</p><p><strong>Settings and design: </strong>The trial was a cross-over randomized control trial.</p><p><strong>Materials and methods: </strong>Twenty patients were diagnosed using magnetic resonance imaging to have anterior disc displacement were included in the following trial. All included patients met the inclusion criteria and they were all suffering from pain and were classified as anterior DDWR. They were randomized using the sealed envelopes into two groups. Group A patients received ARS for 3 months and then SS for another 3 months after a 14-day wash out period, while in group B patients received SS for 3 months and then ARS for another 3 months after a wash out period of 14 days. All included patients received a primary impression followed by a centric relation record and a protrusive record for the fabrication of the splints. All splints were designed and then printed. Pain was evaluated using the Visual Analog Scale (VAS), an easy subjective proportion of pain intensity using a scale from 0 to 10, where 0 indicates no pain and 10 indicates high intensity.</p><p><strong>Statistical analysis used: </strong>An independent t-test was performed for both groups at each fixed time interval.</p><p><strong>Results: </strong>There was a statistically significant difference within absolute change in pain reduction for both groups over the 3-month follow-up period. During the 1st week, Group B showed a greater pain reduction compared to Group A (0.43 vs. 0.32, respectively; P = 0.0001). However, at the 2nd week, 1 month, 2 months, and 3 months, Group A demonstrated greater pain reduction than Group B, with the values of (0.87, 1.5, 1.54, and 1.82) for Group A and (0.81, 1.19, 1.43, and 1.78) for Group B, respectively (P = 0.0001).</p><p><strong>Conclusion: </strong>Within the limitations of this study, both splints are considered reliable treatment options for patients with anterior disc displacement. The ARS initially demonstrated a greater improvement in pain compared to the SS. However, after the 3-month follow-up period, no significant difference was observed between the two splints.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 2","pages":"163-168"},"PeriodicalIF":1.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12057826/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144039537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A comparative evaluation of prosthetic and clinical outcomes influenced by two digitally fabricated extracoronal restorations: An onlay and a full crown: A prospective, cross-arch randomized study.","authors":"Sarojini Biswal, Bhupender Kumar Yadav, Abhishek Nagpal, Omkar Krishna Shetty, Pankaj Ritwal, Shalini Kapoor","doi":"10.4103/jips.jips_331_24","DOIUrl":"https://doi.org/10.4103/jips.jips_331_24","url":null,"abstract":"<p><strong>Aim: </strong>The aim of the study was to investigate and compare the prosthetic parameters, clinical indices, and survival rates of two digitally fabricated extracoronal restorations, namely an onlay and a full crown, at baseline, 1 year, and 2 years.</p><p><strong>Settings and design: </strong>This was a prospective clinical study conducted on endodontically treated posterior teeth.</p><p><strong>Materials and methods: </strong>Endodontically treated posterior teeth (n = 15) present bilaterally in the mandibular arch were selected. Digitally fabricated lithium disilicate onlay and crown were placed on either side of the same arch after randomization. Clinical parameters and prosthetic characteristics (as per the modified United States Public Health Service criteria) were evaluated at baseline, 1-year, and 2-year follow-ups.</p><p><strong>Statistical analysis used: </strong>Data were descriptively examined. The results were evaluated using the Chi-square test and ANOVA. Statistical significance was determined at P < 0.05.</p><p><strong>Results: </strong>Full crowns showed a 100% survival rate, while onlays had an 83.3% survival rate, with a significant difference (P = 0.030, 95% confidence interval: 0.01-0.12). Onlays exhibited significantly better periodontal outcomes, including lower bleeding on probing (P = 0.000), plaque index (P = 0.001), and probing pocket depth (P = 0.000) at 1 and 2 years. Marginal discoloration (20%) and marginal integrity loss (13.3%) were observed in onlays, with significant differences (P = 0.001). Both groups showed no fractures, secondary caries, or significant surface texture changes, and 100% patient satisfaction throughout.</p><p><strong>Conclusion: </strong>In this clinical trial comparing lithium disilicate onlays and crowns for restoring posterior teeth following endodontic treatment, both options demonstrated satisfactory prosthetic parameters during subsequent follow-ups. However, marginal integrity and discoloration were more prevalent in the onlay group. Periodontal examination revealed that onlays exhibited superior periodontal outcomes compared to crowns, with full crowns showing greater periodontal damage at 1-year and 2-year follow-ups.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 2","pages":"150-162"},"PeriodicalIF":1.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12057828/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144015230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M Satyanarayana Raju, Sruthima N V S Gottumukkala, Koyya Sesha Sai Rakshitha, M A K V Raju
{"title":"Precision implant placement: A novel approach using dynamic navigation system-guided alveolar ridge splitting.","authors":"M Satyanarayana Raju, Sruthima N V S Gottumukkala, Koyya Sesha Sai Rakshitha, M A K V Raju","doi":"10.4103/jips.jips_372_24","DOIUrl":"https://doi.org/10.4103/jips.jips_372_24","url":null,"abstract":"<p><p>Conventional alveolar ridge splitting (ARS) technique involves a significant risk which may prove problematic. This case report presents the first documented application of dynamic navigation system (DNS)-guided ARS, demonstrating a precise approach to implant placement in a challenging anatomical scenario. A 37-year-old partially edentulous patient presented with missing mandibular posterior teeth. Clinical examination revealed a deficient alveolar ridge. Cone-beam computed tomography evaluation showed a Siebert's Class I resorbed ridge with 2.5 mm width and bone density ranging from 870 to 1040 Hounsfield Units in the #46 and #47 regions. Creating and designing three-dimensional virtual guide slits and implant planning using DNS were done in patient with insufficient bone width in the mandibular molar region. Piezoelectric ARS, osteotomy preparation with implant placement was done. 0.70 and 0.26 mm deviations at #46 and 0.50 and 0.01 mm deviations at #47 were observed at implant entry and implant apex, respectively. The angular deviations were optimal. ARS using real-time navigation appears to be an efficient and promising technique.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 2","pages":"179-184"},"PeriodicalIF":1.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12057829/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144064790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparative evaluation of osteogenic potential of light-emitting diode irradiation at varying distances from the target: An in vitro study.","authors":"Divyabharathi Selvam, Venkat Rengasamy","doi":"10.4103/jips.jips_488_24","DOIUrl":"https://doi.org/10.4103/jips.jips_488_24","url":null,"abstract":"<p><strong>Aim: </strong>To evaluate and compare the osteogenic effects of LED irradiation at varying distances using MG-63 osteoblast-like cells cultured on titanium discs.</p><p><strong>Settings and design: </strong>This in vitro experimental study involved human osteosarcoma (MG-63) cells cultured on titanium discs and subjected to LED irradiation at different distances, compared to a non-irradiated control group.</p><p><strong>Materials and methods: </strong>Forty-two titanium discs were divided into three groups: Control (no irradiation), LED Group 1 (10 mm distance), and LED Group 2 (20 mm distance). All discs were seeded with MG-63 cells and pre-cultured. Experimental groups received a single 2-minute exposure to 660 nm red LED light, while controls received no exposure. Cell viability was measured at 24 and 48 hours using the MTT assay. Cell attachment, growth, and proliferation were assessed at 72, 96, and 120 hours.</p><p><strong>Statistical analysis used: </strong>Data were analyzed using SPSS v28.0. Two-way ANOVA followed by Tukey's post-hoc test was applied to identify statistically significant differences among groups across time points. A p-value < 0.05 was considered significant.</p><p><strong>Results: </strong>Both LED-irradiated groups showed significantly enhanced osteogenic activity compared to controls (p < 0.05). Group 1 (10 mm) exhibited the highest cell viability, attachment, and proliferation. Group 2 (20 mm) showed moderate improvement but was inferior to Group 1, indicating distance-dependent effects.</p><p><strong>Conclusion: </strong>LED therapy enhances osteogenesis on titanium surfaces, with the greatest efficacy observed at a 10 mm irradiation distance. These findings support the use of optimized LED therapy to improve bone healing and implant integration.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 2","pages":"169-175"},"PeriodicalIF":1.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12057822/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144013965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V R Arun Kumar, Shivasakthy Manivasakan, K Prabhu, David Livingstone, J Shanti Swarup
{"title":"Effectiveness of the implant stabilizing plate on the stress distribution around the implant placed immediately after maxillary sinus lifting: A finite element study.","authors":"V R Arun Kumar, Shivasakthy Manivasakan, K Prabhu, David Livingstone, J Shanti Swarup","doi":"10.4103/jips.jips_409_24","DOIUrl":"https://doi.org/10.4103/jips.jips_409_24","url":null,"abstract":"<p><strong>Aim: </strong>To assess the effectiveness of this Implant T Stabilizing plate in distributing the masticatory stress around the implant placed immediately after maxillary sinus lifting in cases with reduced remaining bone height (3 mm).</p><p><strong>Settings and design: </strong>In vitro experimental study.</p><p><strong>Materials and methods: </strong>Two 3D finite element maxillary models with implant placement in 16 region were designed, one without an implant T stabilizing plate and another with an implant T stabilizing plate. Interim removable partial denture with soft liner replacing 16 and 17 was also designed for both models over which the masticatory force of 12 kg was applied. The maximum principal stress generated around the implant and surrounding bone in both models was measured.</p><p><strong>Statistical analysis used: </strong>Statistical analysis was done by using MedCalc stratistical software - version 23.1.7 in which 'Receiver Operating Characteristic Curve' analysis was performed to check for the sensitivity and specificity of the material used.</p><p><strong>Results: </strong>The maximum principal stress around the implant and the cortical bone in working model 1 (without the ITS plate) was 5.2972 and 5.2387 mega pascal respectively. The maximum principal stress around the implant and the cortical bone in working model 2 (with ITS plate) was 1.1663 and 4.5568 mega pascal respectively. In the working model 2, the Implant T stabilizing plate absorbs maximum stress of 10.022 mega pascal.</p><p><strong>Conclusion: </strong>The implant T stabilizing (ITS) plate to the implant placed immediately after maxillary sinus lifting absorbs the maximum stress there by reducing the stress around the implant and surrounding bone even in cases of minimal remaining bone height.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 2","pages":"138-143"},"PeriodicalIF":1.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12057825/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144014708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Spectral characterization of biosynthesized silver nanomodified poly(methyl methacrylate) resin for denture applications.","authors":"Lata Shankrappa Mushannavar, Ramesh K Nadiger","doi":"10.4103/jips.jips_455_24","DOIUrl":"https://doi.org/10.4103/jips.jips_455_24","url":null,"abstract":"<p><strong>Aim: </strong>The aim was to investigate the interaction of the biosynthesized silver nanoparticles (AgNPs) with poly (methyl methacrylate) (PMMA) denture base resin using Fourier transform infrared (FTIR) spectroscopy.</p><p><strong>Settings and design: </strong>This was a comparative in vitro study.</p><p><strong>Materials and methods: </strong>In the present study, AgNPs were biosynthesized using Trigonella foenum-graecum leaf extract. The biosynthesized AgNPs at concentrations 32 and 64 μg/ml were incorporated into PMMA, and characterization was carried out using FTIR spectroscopy.</p><p><strong>Statistical analysis used: </strong>None, as only one sample from each group was subjected for FTIR spectroscopy.</p><p><strong>Results: </strong>The biosynthesis of AgNPs was confirmed by a color change from green to brown. When compared to the control group, the test group showed no changes in the band locations for C = C and C = O. Importantly, the infrared spectra of all specimens with AgNP additives exhibited the distinctive peaks associated with PMMA.</p><p><strong>Conclusion: </strong>Based on the study's limitations, it was determined that AgNPs had physically interacted with the PMMA matrix.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 2","pages":"132-137"},"PeriodicalIF":1.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12057830/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144039538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A clinical and radiographic evaluation of immediately loaded fixed full-arch prosthesis supported by implants placed in extraction sockets and healed ridges using All-on-4/All-on-6 protocol: A 2-year follow-up.","authors":"Nitin Sethi, Princy Agarwal, Parikshit Gupt","doi":"10.4103/jips.jips_238_24","DOIUrl":"https://doi.org/10.4103/jips.jips_238_24","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this study was to evaluate immediately loaded implants, both clinically and radiographically, in extraction sites (IPIL) and healed sites (HSIL), rehabilitated using All-on-4/All-on-6 protocol, over a time span of 2 years.</p><p><strong>Setting and design: </strong>The study proceeded under following phases of patient selection, placement of implants followed by immediate loading and then statistically analyzing the collected data.</p><p><strong>Materials and methods: </strong>A total of 15 patients were evaluated, in 2 years, for study purpose. Among 87 immediately loaded implants, 44 were IPIL and 43 were HSIL. The bone level was measured using Implant abutment junction as reference point, at 0, 6, 12, 18 and 24 months. Bone loss was calculated as difference of mean.</p><p><strong>Statistically analysis: </strong>The collected data was statistically analyzed using independent t-test (P < 0.05).</p><p><strong>Results: </strong>The average bone loss for 2 years was 1.39 mm and 1.17 mm, in IPIL and HSIL group respectively with 100% implant survival rate and no statistical difference (P < 0.05).</p><p><strong>Conclusion: </strong>Full arch prostheses can be successfully delivered by immediate loading of implants regardless of placement (healed or extraction sites).</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 2","pages":"125-131"},"PeriodicalIF":1.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12057833/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144013885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jayant N Palaskar, Amit Dhansukhlal Hindocha, Nikhil Joshi, Ketaki Balsaraf
{"title":"Evaluation of horizontal condylar guidance on a fully adjustable articulator at varying protrusive distances: An in vivo study.","authors":"Jayant N Palaskar, Amit Dhansukhlal Hindocha, Nikhil Joshi, Ketaki Balsaraf","doi":"10.4103/jips.jips_470_24","DOIUrl":"https://doi.org/10.4103/jips.jips_470_24","url":null,"abstract":"<p><strong>Aim: </strong>This study aimed to assess the accuracy of HCG values obtained with records at various protrusive distances on a fully adjustable articulator.</p><p><strong>Settings and design: </strong>Pantographs are used for condylar settings on a fully adjustable articulator but are complex and time-consuming. Protrusive interocclusal records can be used to set horizontal condylar guidance (HCG) in fully adjustable articulators; however, the ideal protrusive distance to do so remains unclear. This was an in vivo observational cross-sectional study.</p><p><strong>Materials and methods: </strong>Twenty-five dentate subjects participated in this study. Customized guides with calibrations at 2, 4, 6, and 8 mm were used to create protrusive interocclusal records at each increment. The HCG values derived from these records were set on a fully adjustable articulator (Denar D5A, Whip Mix Corp.). For control, standardized digital lateral cephalograms of each subject were taken in edge-to-edge and maximal intercuspal positions. These cephalograms were superimposed using Dolphin Imaging software (Dolphin Imaging and Management Solutions), allowing the determination of the cephalometric HCG angle by measuring the intersection between a line passing from the Condylion and the Frankfort horizontal plane. The HCG values from the articulator were compared with the cephalometric HCG values.</p><p><strong>Statistical analysis used: </strong>Statistical analysis was conducted using repeated measures ANOVA for intragroup comparison and one-way ANOVA with Bonferroni post hoc tests for intergroup comparisons. The Shapiro-Wilk test was conducted to assess normality.</p><p><strong>Results: </strong>The mean HCG values obtained at 2, 4, 6, and 8 mm were 49.92°, 44.28°, 36.60°, and 26.60°, respectively, while the cephalometric HCG value was 44.51°. Analysis revealed no significant difference between the cephalometric HCG and the 4 mm record (P > 0.05), but significant differences were noted at 2, 6, and 8 mm (P < 0.05).</p><p><strong>Conclusions: </strong>The HCG set on the Denar D5A articulator using a 4 mm protrusive interocclusal record closely matched the cephalometric HCG, suggesting that a 4 mm record may be optimal when using protrusive records for programming this articulator.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 2","pages":"144-149"},"PeriodicalIF":1.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12057827/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143994930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Incremental impression technique for an implant-retained orbital prosthesis.","authors":"Neeraj Kumar Chandraker","doi":"10.4103/jips.jips_22_25","DOIUrl":"https://doi.org/10.4103/jips.jips_22_25","url":null,"abstract":"<p><p>Accurate impressions are an essential prerequisite for fabricating implant-retained maxillofacial prostheses. This article describes an impression technique for recording orbital defects by making increments for an implant-retained orbital prosthesis using an open-tray impression. This technique enables an accurate transfer of implant position and recording of the area of interest. A wide range of impression-transfers, including dental implant impression posts, can also be used.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 2","pages":"185-188"},"PeriodicalIF":1.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12057831/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143998801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}