The journal of adhesive dentistry最新文献

{"title":"Physico-Chemical Properties and Performance of Functional Monomers Used in Contemporary Dental Adhesive Technology.","authors":"António H S Delgado, Mohammed H Ahmed, Marta Nunes Ferreira, Ana Mano Azul, Mário Polido, Kumiko Yoshihara, Bart Van Meerbeek","doi":"10.3290/j.jad.c_2297","DOIUrl":"10.3290/j.jad.c_2297","url":null,"abstract":"<p><p>This comprehensive literature-based review critically examines the physico-chemical properties of functional monomers present in contemporary dental adhesive formulations or dental materials relying on self-adhesive technology. A qualitative synthesis of evidence was conducted through searches in PubMed, Scopus, and LILACS over a 20-year period (2005-2025), without language restrictions. Data on the chemical structure, composition, adhesive performance, pKa, etching efficacy, polymerization, mechanical properties, toxicity, and hydrolytic stability/degradation were analyzed from peer-reviewed studies and manufacturer technical information. Several relevant acidic functional monomers are covered, but key players include 10-MDP, GPDM, and 4-META. Notably, 10-MDP emerged as the most prevalent monomer in commercial adhesives, appearing in nearly 50% of the current adhesives in the market. Its superior adhesive performance and longevity stem from its unique chemical characteristics, whereas other commercial acidic monomers, including GPDM and 4-META, are still present in many adhesive formulations despite their structural limitations and comparatively lower bonding efficacy. Understanding the chemical composition of dental adhesives is essential for achieving improved clinical outcomes and driving material development. This knowledge allows clinicians to select adhesive materials based on performance requirements and informs future innovations to address challenges such as degradation pathways, biocompatibility, and their overall long-term bonding efficacy.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"27 ","pages":"175-193"},"PeriodicalIF":2.7,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12532035/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145240809","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":"Long-term Observational Study of the Longevity, Clinical Quality, and Periodontal Health Impact of Fiber-reinforced Composite Fixed Dental Prostheses.","authors":"Svenja Koeppe, Sebastian Soliman, Gabriel Krastl, Ralf Krug, Britta Hahn","doi":"10.3290/j.jad.c_2281","DOIUrl":"10.3290/j.jad.c_2281","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Purpose: &lt;/strong&gt;The goal of this study was to determine the survival rate, success rate, and periodontal health quality (PHQ) of glass fiber-reinforced composite (FRC) resin-bonded fixed dental prostheses (RBFDPs) over an observation period of up to 22 years.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Materials and methods: &lt;/strong&gt;RBFDPs reinforced with unidirectional glass fiber strands were fabricated directly (n = 16) or indirectly (n = 31; *n = 1 missing data) for 48 adult patients (24 female, 24 male) and used to replace 39 anterior teeth and 9 posterior teeth in the maxilla (n = 33) or mandible (n = 15) using different framework designs: single-retainer (n = 8), double-retainer (n = 33), or multi-retainer (n = 7). Their fate was classified as a success, functional survival, or failure based on observed complications. PHQ was evaluated by measuring PPD, CAL, SBI, and PI around the abutment teeth and unrestored reference teeth (controls). The clinical quality of the restorations was evaluated according to the Fédération Dentaire Internationale (FDI) criteria. Statistical analysis included Kaplan-Meier survival analysis, Wilcoxon tests, Mann-Whitney U tests, and Chi-squared tests. The significance level was set at P 0.05 for all statistical tests.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;The outcome was 'failure' in 37 cases (52.9%), 'functional survival' (at a mean follow-up of 9 years) in 15 cases (25.7%), and 'success' in 18 cases (25.7%). The median time to first complication was 32.0 months. The most common complications were debonding and fracture. Multi-retainer FRC-RBFDPs had the highest complication rates. Most FRC-RBFDPs were of good clinical quality according to FDI criteria. PHQ scores showed significantly higher clinical attachment level (CAL) (pw = 0.027) around abutments (3.40 ± 1.42/controls: 3.09 ± 1.11) and significantly greater plaque accumulation around abutments (pw = 0.008, 3.28 ± 1.03/controls: 2.83 ± 1.02) and pontics (pw = 0.001, 3.50 ± 0.99/controls: 2.83 ± 1.02) than around control teeth. Pocket probing depth (PPD) values were lower for abutments (2.43 ± 0.49) than for control teeth (2.52 ± 0.55). The opposite was true for sulcus bleeding index (SBI) scores (abutments: 0.64 ± 0.76/controls: 0.42 ± 0.71). There were no significant differences in periodontal health variables between younger and older restorations. In group comparisons, mean and median PPD, CAL, and plaque index (PI) scores for abutment and control teeth were higher in older patients than in younger patients.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusion: &lt;/strong&gt;Based on our survival and complication data, FRC-RBFDPs can be considered short- to medium-term restorations. A 5-year survival rate of approximately 80% can be expected. The most common complications were reparable defects. Thus, repairs can prolong the survival time in many cases. Patient age had a greater effect on PHQ than restoration age. For example, FRC-RBFDPs in older patients were associated with higher levels of plaque accumul","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"27 ","pages":"163-173"},"PeriodicalIF":2.7,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12465233/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145139939","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":"Resin Composite Injection Technique With a Digital Workflow To Reconstruct Canine Guidance: A Two-Year Follow-Up.","authors":"Yuta Utsumi, Keiichiro Watanabe, Sooha Matsuki, Takuma Sakamaki, Eiji Tanaka, Keiichi Hosaka","doi":"10.3290/j.jad.c_2213","DOIUrl":"10.3290/j.jad.c_2213","url":null,"abstract":"<p><strong>Purpose: </strong>Orthodontic treatment often requires anatomical tooth reconstruction for esthetic and functional reasons. Direct resin composite (RC) restorations, which preserve tooth structure while providing high bond strength, are widely used. Recently, orthodontic treatment plans increasingly incorporate RC restorations for correction of tooth form. This report presents a case in which RC injection, aided by a digital workflow, successfully restored lost canine morphology.</p><p><strong>Materials and methods: </strong>An intraoral scanner was used to obtain optical impressions and occlusal records, which were then imported into a computer-aided design (CAD) system for analysis using a virtual articulator. Lateral movements were simulated in the virtual articulator to replicate occlusal contacts. Subsequently, a digital wax-up was used to fabricate a 3D-printed model, and a transparent silicone index with designated openings for RC injection was created. A flowable RC (Filtek™ Supreme Ultra Flowable Restorative, Solventum) was injected through the incisal access opening of the index.</p><p><strong>Results: </strong>By utilizing a clear index designed through the digital workflow, the wear of the canine teeth was efficiently restored using the injection technique. Evaluation of occlusal guidance with a digital articulator revealed that minimal morphological adjustment was required, resulting in a significant reduction in chair time. At the two-year follow-up, the clinical outcomes remained highly favorable.</p><p><strong>Conclusions: </strong>Preoperative occlusal simulations enable precise transfer of tooth form, enhancing clinician-technician communication and reducing chair time. Despite requiring additional visits for index fabrication and specialized equipment, digital workflow-assisted RC injection guarantees esthetic and functional outcomes.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"27 ","pages":"155-161"},"PeriodicalIF":2.7,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12371564/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144877661","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":"12 Months Results of Bond Strength and Endogenous Enzymatic Activity of Radicular Dentin Obturated With Bioceramic Sealer.","authors":"Allegra Comba, Jessica Giannatiempo, Andrea Dirutigliano, Andrea Baldi, Mario Alovisi, Nicola Scotti, Annalisa Mazzoni, Lorenzo Breschi, Leila Es Sebar, Damiano Pasqualini","doi":"10.3290/j.jad.c_2128","DOIUrl":"10.3290/j.jad.c_2128","url":null,"abstract":"<p><strong>Purpose: </strong>Evaluation of radicular bond strength and dentinal matrix metalloproteinases (MMPs) activity with different endodontic sealers (traditional vs bioceramic), filling techniques (warm vs cold), and adhesive protocols (self-etch vs etch-and-rinse), after 24 hours and after one year (T0 vs T1).</p><p><strong>Materials and methods: </strong>96 extracted, caries-free, single-rooted teeth were selected and shaped with Proglider, ProTaper Next X1-X2. Samples were randomly divided into four groups: warm filling with ZOE sealer; cold filling with resin-based sealer; cold filling with bioceramic sealer; warm filling with bioceramic sealer. After 7 days, a 10 mm post space was prepared using dedicated drills, and each group was divided into two subgroups according to the adhesive procedure (self-etch vs etch-and-rinse, SE vs ER) employed for fiber post cementation with dual resin cement. Samples were analyzed with push-out tests at T0 and T1. 16 additional non-carious multirooted teeth were prepared following the described groups and subgroups for in-situ zymography analysis at T0 and T1. A four-way ANOVA, post-hoc Tukey was used to test the four factors and one-way ANOVA to evaluate the differences within each variable (α = 0.05).</p><p><strong>Results: </strong>Bioceramic sealer showed significantly higher bond strength than traditional sealer (P 0.05), especially when associated with the warm filling technique. SE adhesive protocol performed significantly better (P 0.05) independently of the sealer used, the filling technique, and the aging time. Greater endogenous collagenolytic activity was identified within the hybrid layer of ER-treated samples compared to SE independently from the other variables tested. In addition, warm technique proved to significantly reduce MMPs activity compared to the cold technique.</p><p><strong>Conclusion: </strong>The results showed that bioceramic sealers should guarantee better results in radicular dentin bond strength, without altering the endogenous enzymatic activity. The heat produced during the root canal obturation might reduce the internal enzymatic activity but, in association with bioceramic sealers, after 12 months, it produces higher bond strength. Heat reduces the difference between the two adhesive systems. ER technique and aging increase enzymatic activity. Aging tends to increase bond strength, especially in traditional sealers groups associated with ER protocol.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"27 ","pages":"145-153"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12215943/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144532208","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":"Effect of Indirect Pulp Capping Materials On Regional Dentin Seal.","authors":"Roland Frankenberger, Nora Michalowski, Stefanie Amend, Susanne Lücker, Norbert Krämer","doi":"10.3290/j.jad.c_2109","DOIUrl":"10.3290/j.jad.c_2109","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this in-vitro study was to evaluate the effect of different indirect pulp capping (IPC) materials on bond strength to surrounding dentin.</p><p><strong>Materials and methods: </strong>Fifty-six human third molars were used in this study. Occlusal dentin of 42 teeth was exposed. Dentin surfaces (n = 6) were left uncovered (control) or received a 1 × 1 mm central IPC (KL: Kerr life, DY: Dycal, TC: Theracal LC, CL: Calcimol LC, BD: Biodentine, and PR: ProRoot MTA) and were then bonded with Scotchbond Universal adhesive and restored with a composite resin build-up (Filtek™ Z250). After 24 h of water storage, the specimens were cut into sticks, which were marked red (1 mm distance from IPC spot), green (2 mm distance), and blue (3 mm distance). Consequently, µ-TBS tests were performed and analyzed using one-way ANOVA (P 0.05) for normal distributions and Mann-Whitney U-test (P 0.05) for non-normal distributions. Pretesting failures were recorded as 0 MPa. Fracture modes were analyzed under a fluorescence microscope, and interfaces and surfaces of 14 additional specimens were visualized under a scanning electron microscope (SEM).</p><p><strong>Results: </strong>A significant reduction in peripheral seal was only observed for KL (Mann-Whitney U-test, P 0.05). All groups showed increasing bond strengths from the IPC area to the periphery, indicating a certain contamination potential of IPC materials.</p><p><strong>Conclusion: </strong>IPC materials being applied in very deep cavity areas except Kerr Life do not harm peripheral seal to dentin. Especially, hydraulic cements can be used without a negative effect on the peripheral dentin seal.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"27 ","pages":"137-144"},"PeriodicalIF":2.7,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12215944/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144328297","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":"Surface Pretreatment Protocols For Indirect/Semi-Direct Dental Restorations: A Cross-Sectional Survey and Expert Consensus.","authors":"Felicitas Mayinger, Valerie Lankes, Malgorzata Roos, Nadja Rohr, Alexis Ioannidis, Adham Elsayed, Jan-Frederik Güth, Daniel Edelhoff, Nicole Passia, Iman Esmail, Florian Beuer, Stefan Wolfart, Benedikt Christopher Spies, Martin Schimmel, Samir Abou-Ayash, Sebastian Hahnel, Maximiliane Amelie Schlenz, Roland Frankenberger, Uwe Blunck, Dominik Kraus, Marcus Engelschalk, Fabian Huettig, Matthias Kern, Anne-Katrin Luehrs, Petra C Gierthmuehlen, Bogna Stawarczyk","doi":"10.3290/j.jad.c_2106","DOIUrl":"10.3290/j.jad.c_2106","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate, via questionnaire, how protocols for adhesive luting workflows of dental restorations are applied in three German-speaking countries.</p><p><strong>Material and methods: </strong>A 47-item questionnaire gathered data on airborne particle abrasion (APA) unit characteristics, parameters, operating procedures, pretreatments in adhesive luting workflows for restorations, and participant demographics. The survey was distributed via trade journals, expert associations, universities, technical schools, and social media. Marginal absolute and relative frequencies were analyzed (95% confidence intervals), with Chi-squared tests comparing observed and expected frequencies (P0.05). Twenty-three experts voted on 23 recommendations regarding APA parameters and other pretreatments for bonding restorations.</p><p><strong>Results: </strong>A total of 267 participants completed the survey. Access to an APA unit was linked to a higher likelihood of performing APA before placement. Approximately half of the participants used APA in their practice. For zirconia restorations, 47.2% applied alumina APA at 50 µm/0.1 MPa, while 36.7% used the same settings for polymer-based restorations. For alloys, 37.5% employed 110 µm/0.2 MPa. These preferences correlated with age (≥30 years), experience (≥10 years), profession (dental technician/dentist), prior instruction/training, and daily APA use. Adhesives with MDP were used for zirconia (63.8%) and those with silane for silicate-based ceramics (55.9%). Agreement on recommendations ranged between 52% and 100%, with 21/23 reaching an average of 93%.</p><p><strong>Conclusion: </strong>Access to APA influenced clinical decisions and the feasibility of adhesive luting workflows. Adequate APA equipment in dental facilities is essential for quality care. Standardized protocols, training, and education across dental professions are necessary to enhance understanding and proper use of APA.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"27 ","pages":"123-136"},"PeriodicalIF":2.7,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12231566/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144328298","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":"Self-Etching Primer Or Hydrofluoric Acid: Effects On the Bond Strength Stability of a Leucite-Based Glass-Ceramic.","authors":"Camila da Silva Rodrigues, Manassés Tercio Vieira Grangeiro, Rita Adriana Souza da Silva de Assi, Mateus Gaya Dos Santos, Marco Antonio Bottino, Renata Marques de Melo","doi":"10.3290/j.jad.c_2092","DOIUrl":"10.3290/j.jad.c_2092","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the effect of a self-etching primer on the long-term bond strength stability between a leucite-based glass-ceramic and resin cement, compared to the conventional treatment involving hydrofluoric acid (HF) etching followed by silane application.</p><p><strong>Materials and methods: </strong>Blocks of a leucite-based glass-ceramic (IPS Empress CAD) were cut into plates and embedded in acrylic resin. Half of the specimens were treated with 5% HF for 60 s and silane application, and the other half was treated with a self-etching primer (Monobond Etch and Prime, MEP). Resin cement cylinders (n = 24) were built onto their surfaces, and the specimens of each group were divided into three subgroups according to the microshear bond strength (µSBS) testing time: baseline, after 10,000 thermocycles, or after 10,000 thermocycles followed by 180 days of immersion in water. Statistical analysis was performed with two-way analysis of variance and Tukey's tests. Complementary failure mode, contact angle, and scanning electron microscopy analyses were carried out.</p><p><strong>Results: </strong>MEP groups showed higher bond strength results than HF. HF-treated specimens exhibited a decrease in bond strength after thermocycling and water storage, while MEP-treated specimens maintained similar bond strength values across all aging conditions. Only cohesive failures within the ceramic were observed at baseline. After aging, most HF specimens exhibited adhesive failures. HF etching created more irregularities with apparent deeper defects on the ceramic surface compared to MEP. HF etching produced a lower contact angle between the ceramic surface and the water drop compared to the self-etching primer.</p><p><strong>Conclusion: </strong>Applying the self-etching primer resulted in higher bond strength stability between leucite-based glass-ceramic and resin cement compared to conventional treatment.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"27 ","pages":"115-122"},"PeriodicalIF":2.7,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12215945/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144268312","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":"The Incorporation of Copper-Doped Bioactive Glass Nanoparticles into Resin Composites Improves Their Biological, Mechanical and Adhesive Properties.","authors":"Romina Aliaga-Gálvez, Mario Felipe Gutiérrez, Benjamín Valenzuela, Saulo Geraldeli, Gabriel Abuna, Carolina Inostroza, Cristian Bravo, Gabriel Cochinski, Alessandro D Loguercio","doi":"10.3290/j.jad.c_2014","DOIUrl":"10.3290/j.jad.c_2014","url":null,"abstract":"<p><strong>Purpose: </strong>This study aims to develop and characterize copper-doped bioactive glass nanoparticles (BG/CuNp), and to evaluate the effects of their addition into a resin composite on antimicrobial activity (AMA), cytotoxicity (CTX), ultimate tensile strength (UTS), Knoop microhardness (KHN), as well as immediate resin-dentin microtensile bond strength (μTBS), nanoleakage (NL) and in-situ degree of conversion (DC).</p><p><strong>Materials and methods: </strong>BG/CuNp were added to a resin composite at different concentrations (0% [control]; 5, 10 and 20 wt%). The AMA was evaluated against Streptococcus mutans. For CTX, the Gingival mesenchymal stem cells (GMSC) cell line was used. For UTS and KHN, specimens were tested after 24 h and 28 days. For bonding evaluation, a universal adhesive was applied on flat dentin surfaces, experimental resin composite build-ups were prepared, and specimens were sectioned to obtain resin-dentin sticks. These were evaluated for μTBS, NL and DC after water storage. Data were submitted to statistical analyses (α = 0.05).</p><p><strong>Results: </strong>The addition of 5% and 10% of BG/CuNp increases AMA (P 0.05), while the CTX remained unchanged with resin-containing BG/CuNp (P > 0.05). UTS and KHN remained stable with the addition of 5% and 10% of BG/CuNp at 24 h, but showed significantly higher values compared to the control after 28 d (P 0.05). μTBS and in-situ DC remained unchanged with BG/CuNp addition, regardless of the concentration added. However, significantly lower NL was observed for BG/CuNp groups (P 0.05).</p><p><strong>Conclusion: </strong>The addition of BG/CuNp in the tested concentrations into a resin composite may be an alternative to provide antimicrobial activity and improve the integrity of the hybrid layer, without compromising biological, adhesives and mechanical properties.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"27 ","pages":"103-114"},"PeriodicalIF":2.7,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12057575/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144004446","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":"Effects of Cleaning Protocols on Resin Bond Strength to Saliva-Contaminated Monolithic Zirconia.","authors":"Ozge Genc, Necla Demir, Mutlu Özcan","doi":"10.3290/j.jad.c_2011","DOIUrl":"10.3290/j.jad.c_2011","url":null,"abstract":"<p><strong>Purpose: </strong>Considering the significant weakening of the bonding of resin cements to saliva-contaminated zirconia restorations, this study aimed to investigate the effect of various surface treatment methods on the bonding of self-adhesive resin cement to zirconia after various cleansing methods.</p><p><strong>Material and methods: </strong>A total of 105 monolithic zirconia specimens were cut from pre-sintered blocks using a water-cooled precision diamond saw. Specimens were kept in the artificial saliva except for the control group. The specimens were then cleaned using one of the following methods: 1. Air-water spray, 2. Isopropyl Alcohol, 3. Pumice, 4. Universal cleaning agent (Ivoclean), 5. Sandblasting, 6. Sandblasting + Ivoclean. Specimens were bonded to self-adhesive resin cement. Specimens were thermocycled for 5,000 cycles after cementation and tested in shear mode (1 mm/min). Images were obtained using a stereomicroscope, scanning electron microscope, and energy-dispersive spectroscopy. Data were analyzed using ANOVA, and multiple comparisons were performed with the Duncan test (α = 0.05).</p><p><strong>Results: </strong>The mean shear bond strength values were as follows in descending order: Sandblasting + Ivoclean (9.3 MPa) > sandblasting (8.59 MPa) > Ivoclean (7.21 MPa) > Pumice (4.82 MPa) > Air-water spray (4.15 MPa) > Control (3.65 MPa) > Isopropyl alcohol (3.04 MPa). Significant difference was observed between sandblasting and Ivoclean groups, and between sandblasting and sandblasting + Ivoclean groups (P 0.05). A significant difference was also found between the Ivoclean and sandblasting + Ivoclean groups. The groups treated with sandblasting + Ivoclean, sandblasting, and Ivoclean showed a significant difference compared to all other surface treatment groups. There was no significant difference in shear bond strength among the control, air-water, alcohol, and pumice groups (P > 0.05). Sandblasting, Ivoclean, and Ivo-clean after sandblasting applications were found to deliver significantly higher (P 0.05) adhesion compared with air-water, pumice, and alcohol applications.</p><p><strong>Conclusions: </strong>Subsequent applications of Ivoclean after sandblasting established a stronger bond between self-adhesive resin cement and monolithic zirconia than other cleaning methods tested.</p><p><strong>Clinical implications: </strong>Following airborne particle abrasion, intaglio surfaces of zirconia restorations should best be cleaned using Ivoclean.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"27 ","pages":"93-102"},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12057574/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144059343","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":"Push-out Bond Strength of Bulk-Fill Composites Used as Intracanal Anchorage Material.","authors":"Richard Sturm, Hagay Shemesh, Emely Bortel, Bernhard Hesse, Kerstin Bitter","doi":"10.3290/j.jad.c_1991","DOIUrl":"10.3290/j.jad.c_1991","url":null,"abstract":"<p><strong>Purpose: </strong>Evaluation of different composites with varying viscosity for their suitability as intracanal anchorage (ICA) materials using push-out bond strength testing.</p><p><strong>Materials and methods: </strong>48 human maxillary incisors were root filled, crowns partially removed except one residual wall, and distributed into four groups (n = 12), according to one of the following ICA composites: Ormocer (AFx), preheated composite (VB), core build-up (RDC) or flowable (SDR). A 4 mm deep root canal enlargement was prepared using Gates Glidden burrs, and hard tissues were conditioned using a universal adhesive in etch-and-rinse mode. Intracanal cavities were filled using the groups' specific ICA material and a nanohybrid composite (GrandioSO, VOCO) for crown reconstruction. Two samples per group were scanned using phase-contrast-enhanced µ-computer tomography (PCE-CT). The remaining samples were thermo-mechanically loaded (TML), and push-out bond strengths and fracture patterns of ICA materials were analyzed.</p><p><strong>Results: </strong>Push-out bond strengths were significantly affected by ICA materials (P = 0.001) and location inside the root canal (P 0.005; generalized estimating equations). VB showed a significantly lower bond strength (13.5MPa ± 5.3MPa) compared to RDC (19.6MPa ±7.6MPa) and AFx (21.4MPa ±7.6MPa), but did not differ significantly from SDR (20MPa ± 10.3MPa). All groups demonstrated predominantly adhesive failures between the composite and dentin (P 0.05; Chi-square test). µ-CT scans indicate material-dependent localization and quantity of voids.</p><p><strong>Conclusion: </strong>The survival rates after TML and the push-out bond strength values indicate a sufficient bonding of all ICA materials. Frequently occurring voids highlight problems of application and the effects of materials' viscosity on void formation and bond strength.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"27 ","pages":"81-91"},"PeriodicalIF":2.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12057576/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144015770","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}