Journal of oral biology and craniofacial research最新文献

{"title":"Agreement between cephalometric analyses in diagnosing the dento-skeletal characteristics of malocclusion","authors":"J. Monisha,&nbsp;Ulaganathan Sangeetha,&nbsp;Bhaskar Nivethitha,&nbsp;Balasubramanian Madhan","doi":"10.1016/j.jobcr.2025.04.012","DOIUrl":"10.1016/j.jobcr.2025.04.012","url":null,"abstract":"<div><h3>Background</h3><div>Conflicting results from different cephalometric analyses is a common problem with broader implications but has not received due attention. This study evaluated the agreement between common cephalometric analyses in diagnosing the essential dento-skeletal characteristics of malocclusion.</div></div><div><h3>Material and methods</h3><div>A total of 125 lateral cephalograms were analyzed digitally using Downs, Steiner, Wits, Tweed, Bjork, Ricketts, and McNamara analysis. The diagnosis of sagittal jaw relation (Class 1/2/3), maxillary and mandibular positions (Orthognathic/Prognathic/Retrognathic), growth pattern (Normodivergent/Hypodivergent/Hyperdivergent), and upper and lower incisors positions (Normal/Proclined/Retroclined) were established based on each analysis. The extent of agreement between the analyses was assessed using Kappa statistics.</div></div><div><h3>Results</h3><div>The overall agreement between analyses was moderate for sagittal jaw relationship [k = 0.41 (0.37-0.45)], fair for growth pattern [k = 0.24 (0.20-0.27)], mandibular position [k = 0.25, (0.20-0.30)], upper incisor (k = 0.38, CI = 0.32-0.44) and lower incisor [k = 0.21 (0.17-0.25)] positions, and only slight for maxillary position [k = 0.18 (0.13-0.23)]. For pairwise comparisons of analyses, the agreement was moderate to substantial for the sagittal jaw relationship (except for comparisons involving McNamara analysis) and slight to moderate for other variables. Also, the diagnosis of normal dentofacial relationships (Class 1 and normodivergent skeletal pattern, orthognathic jaw positions, and normal incisor positions) was less consistent than those of deviant subgroups.</div></div><div><h3>Conclusions</h3><div>The agreement between the cephalometric analyses evaluated was moderate for sagittal jaw relation and only fair for most other dento-skeletal characteristics. McNamara's analysis showed less agreement with others. These highlight the need for a more cautious and scientific approach to Cephalometrics.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"15 4","pages":"Pages 744-748"},"PeriodicalIF":0.0,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143902272","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":"Corrigendum to “Antibiofilm efficiency of silver and copper nanoparticle incorporated calcium hydroxide as an intracanal medicament: An in vitro study” [Journal of Oral Biology and Craniofacial Research 15 (2025) (2) 319–324]","authors":"Murali H. Rao ,&nbsp;Krishnan Rajkumar ,&nbsp;Gopal Pavithra ,&nbsp;Ramya Ramadoss ,&nbsp;Suryanarayanan Shankar ,&nbsp;Krishnamachari Janani ,&nbsp;Kumar Chandan Srivastava ,&nbsp;Deepti Shrivastava ,&nbsp;Dinesh Rokaya","doi":"10.1016/j.jobcr.2025.02.009","DOIUrl":"10.1016/j.jobcr.2025.02.009","url":null,"abstract":"","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"15 3","pages":"Pages 659-661"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942658","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":"Exploring the biological activity and setting dynamics of a novel polydopamine-based root repair material","authors":"Lakshmi Nidhi Rao ,&nbsp;Aditya Shetty ,&nbsp;Arun M. Isloor ,&nbsp;Sooraj Nayak ,&nbsp;Mohana Kumar ,&nbsp;Jayaprakasha Shetty K ,&nbsp;Muttanna Venkatesh","doi":"10.1016/j.jobcr.2025.04.001","DOIUrl":"10.1016/j.jobcr.2025.04.001","url":null,"abstract":"<div><h3>Background</h3><div>Root perforation represents a significant complication in endodontics, compromising the structural integrity of the tooth. Effective repair are critical to mitigating the associated risks and preserving long-term dental function. Despite extensive research, the ideal repair material that fulfills all requisite biological and mechanical properties remains elusive.</div></div><div><h3>Methodology</h3><div>This study introduces a novel polydopamine based repair material designed to address the limitations of existing materials. The material was characterized using field emission scanning electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, transmission electron microscopy, zeta potential, and particle size analysis. The material's initial and final setting times were evaluated using a Gilmore needle apparatus. Biocompatibility was assessed via the MTT assay, while bioactivity was quantified through calcium ion release analysis. Comparative evaluations were conducted against ProRoot MTA, a commercially available standard in root repair.</div></div><div><h3>Results</h3><div>The findings revealed no statistically significant differences in cytotoxicity (P &gt; 0.05) between the experimental material and ProRoot MTA, affirming the biocompatibility of both. However, the experimental material demonstrated a significantly faster set (P &lt; 0.001) than ProRoot MTA, a critical advantage in clinical applications. the inclusion of calcium chloride and bioactive glass enhanced calcium ion release, with the experimental material showing significantly higher levels at 7 days.</div></div><div><h3>Conclusion</h3><div>The polydopamine-bioactive glass composite exhibited favorable biological activity, superior setting dynamics, and enhanced bioactivity, positioning it as a promising candidate for perforation repair. These results lay the groundwork for further research and potential clinical translation, offering a viable solution to a longstanding challenge in endodontics.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"15 4","pages":"Pages 737-743"},"PeriodicalIF":0.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882189","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":"Effects of different curcumin concentrations on human periodontal ligament fibroblast adhesion and proliferation on periodontally involved root surfaces: In-vitro study","authors":"Amina Fouad Farag ,&nbsp;Hala H. Yassin ,&nbsp;Ahmed Y. Gamal ,&nbsp;Noorhan El Badawi ,&nbsp;Mahetab M. Abdalwahab","doi":"10.1016/j.jobcr.2025.04.006","DOIUrl":"10.1016/j.jobcr.2025.04.006","url":null,"abstract":"<div><h3>Introduction</h3><div>Periodontopathic endotoxins infiltrate root surface and prevent cellular adhesion to tooth surfaces. Naturally occurring curcumin has anti-inflammatory, antioxidant and antibacterial qualities that promote fast wound healing by increasing fibroblast cell proliferation and migration in concentration-dependent manner.</div></div><div><h3>Objectives</h3><div>This study was conducted to evaluate the effect of 0.12 %, 1 % and 2 % curcumin concentrations on PDL cell adhesion, viability and proliferation to periodontally affected root surfaces.</div></div><div><h3>Materials and methods</h3><div>20 periodontally affected teeth sectioned into root samples were included. PDL fibroblasts were collected from freshly extracted teeth, cultured and expanded. PDL fibroblast (1 × 10⁵ cells/ml) was seeded on curcumin coated root samples in different concentrations. Study samples were divided into 4 groups: G1 (0.12 % of curcumin paste), G2 (1 % curcumin paste), G3 (2 % curcumin paste) and G4 (control/unconditioned group). All samples were investigated by SEM and MTT assay.</div></div><div><h3>Results</h3><div>G3 showed highest viability and cell proliferation compared to other groups where well defined multilayered adherent cells covering entire surface with totally flat polyhedral bodies with long cytoplasmic extensions and little or no bacterial colonization.</div></div><div><h3>Conclusion</h3><div>Curcumin 2 % provides optimal stimulation of cellular attachment, viability, proliferation and antibacterial effects over periodontitis affected root surfaces.</div></div><div><h3>Clinical relevance</h3><div>Determination of optimal curcumin concentration in this study revealed 2 % concentration produced highest levels of PDL cellular attachment, viability, proliferation and antibacterial action over root surfaces afflicted by periodontitis. Therefore, the use of that optimal curcumin concentration as adjunctive to non-surgical periodontal therapy may modify the periodontal pocket ecology to improve the healing of periodontal tissues.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"15 4","pages":"Pages 729-736"},"PeriodicalIF":0.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878793","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":"Reduction in tongue space/tongue volume ratio as a risk factor for oral tongue squamous cell carcinoma-an exploratory study","authors":"Mahija Janardhanan ,&nbsp;Sandya C.J ,&nbsp;Manu Raj ,&nbsp;Venkitachalam Ramanarayanan ,&nbsp;Rajalakshmi G ,&nbsp;Subramania Iyer K","doi":"10.1016/j.jobcr.2025.04.002","DOIUrl":"10.1016/j.jobcr.2025.04.002","url":null,"abstract":"<div><h3>Background</h3><div>The occurrence of tongue cancers in young adults with no associated habitual risk factors is emerging as a major health concern. The objective of the study was to investigate the role of low tongue space-tongue volume ratio as a risk factor for oral tongue squamous cell carcinoma.</div></div><div><h3>Methods</h3><div>A case control study was conducted among histopathologically confirmed cases of squamous cell carcinoma of lateral border of the tongue who underwent treatment at the Department of Head &amp; Neck Surgery (case group, n = 50). The patients with normal tongue referred for the evaluation of Magnetic Resonance Imaging of head region for other ailments formed the control group (n = 50). The space available for the tongue and the tongue volume of the study population were measured from the Magnetic Resonance Images (MRI), using in built software, and the mean Tongue space/Tongue volume ratio (TS/TV) of both the case group and the control group were calculated. A comparison of the TS/TV ratio was made between the test group and the control group using independent two sample <em>t</em>-test. The cut off value for TS/TV ratio between the groups was determined using Receiver Operating Characteristic (ROC) Curve method and Odds ratio was calculated by grouping the study population as low or high TS/TV ratio group using the cut off value obtained.</div></div><div><h3>Results</h3><div>A statistically significant variation was observed in the TS/TV ratio between tongue cancer patients and the normal controls with the mean value in normal controls higher than tongue cancer patients (p value = 0.009). The cut off value for TS/TV ratio for the development of tongue cancer was determined as 1.259 using ROC curve and the Odds ratio for malignant transformation in patients with low TS-TV ratio was calculated as 2.6.</div></div><div><h3>Conclusion</h3><div>A significant difference in TS/TV ratio between cases &amp; normal controls observed in our study indicated that a lack of available space for the tongue either due to increase in tongue volume or decrease in tongue space may predispose an individual for the development of tongue cancer.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"15 4","pages":"Pages 718-723"},"PeriodicalIF":0.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858949","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 and correlation of oral cancer phobia and anxiety in oral submucous fibrosis patients: A cross-sectional study","authors":"Ashita Ritesh Kalaskar ,&nbsp;Gauri Ashok Somani ,&nbsp;Ritesh Rambharose Kalaskar","doi":"10.1016/j.jobcr.2025.04.008","DOIUrl":"10.1016/j.jobcr.2025.04.008","url":null,"abstract":"<div><h3>Objective</h3><div>Oral Cancer Phobia and anxiety in patients having premalignant conditions like Oral Submucous fibrosis (OSMF) needs to be evaluated so as to provide an overall effective management to these patients.</div></div><div><h3>Methods &amp; materials</h3><div>Patients having OSMF were tested for oral cancer phobia and anxiety using the validated Marathi translation of CAI and 5-item version of the Spielberger State-Trait Anxiety Inventory (STAI) questionnaire respectively. The correlation was obtained for Oral cancer phobia, anxiety, and socio-demographic status.</div></div><div><h3>Results</h3><div>Cancer phobia and anxiety (mild to severe) were present in all the participants with the majority (65 %) having severe scores and significantly correlated with each other (p value &lt; 0.001). Their scores significantly increased with an increase in grades of OSMF. A co-relation with socio-demographic profiles revealed females to be more affected by severe cancerophobia and anxiety. Patients with less education and housewives had greater levels of cancerophobia and anxiety. Housewives were also more concerned about acquiring cancer.</div></div><div><h3>Conclusion</h3><div>Cancer phobia and anxiety are prevalent in Oral Submucous Fibrosis patients highlighting the significance of identifying and providing psychological therapy as an important part of OSMF management protocol.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"15 4","pages":"Pages 724-728"},"PeriodicalIF":0.0,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858947","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 profiling and analysis of gene expression in rat temporomandibular joint disc tissue and its derived cells","authors":"Haruna Kashio ,&nbsp;Rie Takai ,&nbsp;Ayuko Takada ,&nbsp;Yuya Nakao ,&nbsp;Nattakarn Hosiriluck ,&nbsp;Masahiro Iijima ,&nbsp;Yoshihiro Abiko ,&nbsp;Itaru Mizoguchi ,&nbsp;Toshiya Arakawa","doi":"10.1016/j.jobcr.2025.03.018","DOIUrl":"10.1016/j.jobcr.2025.03.018","url":null,"abstract":"<div><h3>Objective</h3><div>The temporomandibular joint (TMJ) disc is composed of a fibrocartilaginous connective tissue. Its dysfunction, resulting from excessive jaw movement, can lead to TMJ disorders. In this study, we aimed to investigate the crucial molecular information regarding the extracellular matrix (ECM), which would be necessary for treating such disorders through TMJ disc regeneration. To achieve this, we compared the gene profiles of TMJ disc tissues, their derived cells, and the periodontal ligament (PDL) in our previous study.</div></div><div><h3>Methods</h3><div>TMJ discs were isolated from male Wistar rats. Cells derived from the TMJ discs were cultured, and mRNA extracted from the disc tissues and derived cells was analyzed for gene profiling via microarray hybridization. Additionally, we compared the ECM expression between the TMJ disc and the PDL.</div></div><div><h3>Results</h3><div>Collagen (types I, II, III, and VI) and proteoglycans (biglycan and fibromodulin) were highly expressed in the TMJ discs. Significant reduction in decorin, fibromodulin and COL2 were observed in the TMJ-derived cells than in the tissue. Type VI collagen was the third most highly expressed in both the TMJ disc and PDL tissues, following types I and III.</div></div><div><h3>Conclusions</h3><div>Collagen types VI and II were prominently expressed, followed by collagen types I and III, in TMJ disc tissues, reflecting the unique functions of the disc. Type VI collagen was highly expressed in both TMJ disc and PDL tissues. Overall, type VI collagen might be a key molecule for TMJ disc regeneration, ensuring elasticity and cushioning, and could provide new insights for TMJ regeneration.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"15 4","pages":"Pages 712-717"},"PeriodicalIF":0.0,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855717","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":"Tooth shape asymmetry in post-canine dentition: Evidence-based morphometric insights","authors":"Srikant Natarajan ,&nbsp;Junaid Ahmed ,&nbsp;Shravan Shetty ,&nbsp;Nidhin Philip Jose ,&nbsp;Sharada Chowdappa ,&nbsp;Sunita Carnelio","doi":"10.1016/j.jobcr.2025.04.010","DOIUrl":"10.1016/j.jobcr.2025.04.010","url":null,"abstract":"<div><h3>Background</h3><div>This study investigates the potential existence of asymmetry in the shape of tooth and location of landmarks of tooth anatomy and its variation between sexes.</div></div><div><h3>Methods</h3><div>Our study evaluated dental symmetry in 160 patients aged 13–20 years, focusing on post-canine dentition. Using 3D geometric morphometrics, the research evaluated the variations in the anatomical landmarks between left and right side.</div></div><div><h3>Results</h3><div>Analysis of the landmarks revealed that 20–30 % of the principal components explained 80 % of the shape variation. No significant difference in centroid size was found between sexes, but significant shape differences were noted in all teeth except the 3-cusp type mandibular second premolar. Asymmetry was more in the premolar segment in the maxillary arch and in the two-cusp type of mandibular second premolar and the mandibular first molar in the mandibular arch.</div></div><div><h3>Conclusion</h3><div>The research underscores the evolutionary advantage of bilateral symmetry and the presence of fluctuating asymmetry, possibly linked to genetic or environmental stressors. It emphasizes the importance of understanding dental asymmetry for effective treatment planning and diagnosis, in restorative dentistry and orthodontics.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"15 4","pages":"Pages 703-711"},"PeriodicalIF":0.0,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847536","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":"Comparison of proximal contact tightness and contour of bioclear biofit HD versus Composi-tight 3DXR matrix systems in Class-II composite restoration: A randomized clinical study","authors":"Shreya Volety ,&nbsp;Ajay Singh Rao ,&nbsp;Karkala Venkappa Kishan ,&nbsp;Nimisha C. Shah ,&nbsp;Dikshit Solanki ,&nbsp;Geetanjali Jain","doi":"10.1016/j.jobcr.2025.04.005","DOIUrl":"10.1016/j.jobcr.2025.04.005","url":null,"abstract":"<div><h3>Objective</h3><div>To assess proximal contact tightness and contour of two different sectional matrix systems in class-II direct composite restoration using newly designed assessment criteria.</div></div><div><h3>Materials and methods</h3><div>In a double-blinded randomized clinical trial, 62 class-II direct composite restorations were performed in 62 patients using <em>Composi-Tight 3DXR</em> (n = 31) and <em>Bioclear Biofit HD</em> matrix systems (n = 31). Proximal contact tightness and contour were assessed using a self-designed criterion. Statistical analysis utilized <em>Chi-Square</em> and <em>Independent sample t-test</em>, with P &lt; 0.001 considered significant.</div></div><div><h3>Results</h3><div>The mean ± sd score for clinical and radiographical evaluation of proximal contact tightness of the <em>Bioclear Biofit HD</em> group (1.06 ± 0.25) was statistically significant with a p-value (&lt;0.001) compared to the <em>Composi-Tight 3DXR</em> group (2.39 ± 0.72).</div></div><div><h3>Conclusion</h3><div>The study found that the Bioclear Biofit HD matrix system demonstrated better proximal contact and contour than the <em>Composi-Tight 3DXR</em> Sectional Matrix System in Class-II direct composite restorations.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"15 4","pages":"Pages 696-702"},"PeriodicalIF":0.0,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847535","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 Microarc Oxidation and sandblasting on the retention of cement-retained implant restorations: An in-vitro study","authors":"Angelin Glory ,&nbsp;Vidhya Jeyapalan ,&nbsp;Jayakrishnakumar Sampathkumar ,&nbsp;Hariharan Ramakrishnan ,&nbsp;Shivakumar Baskaran ,&nbsp;Deepavalli Arumuganainar","doi":"10.1016/j.jobcr.2025.04.004","DOIUrl":"10.1016/j.jobcr.2025.04.004","url":null,"abstract":"<div><h3>Purpose</h3><div>The aim was to compare the impact of two distinct surface treatment methods on implant abutments concerning the retention of implant-supported restorations.</div></div><div><h3>Materials and methods</h3><div>30 implant analogs, individually embedded into blocks of autopolymerizing acrylic resin, were paired with 30 titanium implant abutments and divided into three groups (each, n = 10) based on surface treatment. Group I included untreated implant abutments; group II included abutments treated with sandblasting; and group III comprised abutments treated with Microarc Oxidation. A qualitative surface analysis was conducted using scanning electron microscope. Each abutment was connected to its analog embedded in the resin block. Resin copings were fabricated using rapid additive prototyping (3D printing) and cast into Ni-Cr alloy copings and cemented onto the abutments using zinc-polycarboxylate cement. Test samples were subjected to tensile bond strength (TBS) testing using an Axial-Torsion Servohydraulic Fatigue-Testing System. The results were tabulated and subjected to statistical evaluation.</div></div><div><h3>Results</h3><div>The mean TBS of the cemented cast copings on implant abutments was 4.276 MPa-group I; 6.340 MPa-group II; and 8.117 MPa-group III. Upon comparison, group III demonstrated the highest mean TBS, followed by group II, while group I exhibited the lowest strength. Qualitative surface analysis revealed that the test samples in group II and group III had greater surface roughness compared to those in group I.</div></div><div><h3>Conclusion</h3><div>The surface treatments of implant abutments using sandblasting and Microarc Oxidation enhanced the tensile bond strength of cemented cast copings and, MAO significantly increased retention of cement-retained restorations compared to sandblasting.</div></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"15 4","pages":"Pages 663-669"},"PeriodicalIF":0.0,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143842594","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}