The journal of adhesive dentistry最新文献

{"title":"Experts' Willingness to Restore With Direct Composite: Complexity, Cuspal Coverage, and Techniques.","authors":"Oliver Bailey, Frank Pfefferkorn, Thomas Attin, Roland Frankenberger, Bas Loomans, Anne-Katrin Lührs, Nicola Scotti, Diana Wolff, Reinhard Hickel, Niek Opdam","doi":"10.3290/j.jad.c_2709","DOIUrl":"10.3290/j.jad.c_2709","url":null,"abstract":"<p><strong>Purpose: </strong>Minimal evidence exists on how class II cavity complexity influences direct restoration provision or if complexifying factors influence the use of techniques and materials. This study aimed to explore: (1) experts' willingness to restore a variety of specific presentations of class II cavities with direct composite restorations; (2) the influence of cavity characteristics on this and the provision of cuspal coverage; and (3) how varying cavity presentations affected technique and material use.</p><p><strong>Methods and materials: </strong>An e-questionnaire developed by international experts was distributed to 67 experts on direct composite restoration. The questionnaire section reported here presented vignettes of varying class II cavities, coded by potential complexifying factors. Respondents were asked if they would restore them with a direct composite. If so, it then asked what specific materials and techniques would be used. Regression analyses were performed.</p><p><strong>Results: </strong>Vignette response rate was 78%. There was a large variation in willingness to restore varying class II cavity presentations with direct composite. This was significantly influenced by the presence of large inter-proximal 'bridging' gaps, root fillings, broad boxes, ≥ 3 cavity surfaces involved and deep sub-gingival margins. When present, these complexifying characteristics affected material and technique use. Those willing to restore more complex cavities were more likely to use more curved circumferential bands and less likely to use a rubber dam, among other factors.</p><p><strong>Conclusion: </strong>Cavity complexity affects experts' willingness to place direct composite restorations. The willingness to use a variety of techniques was associated with a greater readiness to restore more complex class II cavities with direct composite.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"28 ","pages":"83-97"},"PeriodicalIF":2.7,"publicationDate":"2026-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13237434/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148159546","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":"Improving Orthodontic Bracket Adhesion to Monolithic Zirconia: Pretreatment Protocols Across Different Zirconia Types.","authors":"Natalie Kuipers, Matthias Kern, Sebastian Wille, Frank Lehmann, Sinan Sen, Maximiliane Amelie Schlenz, Alexander Schmidt","doi":"10.3290/j.jad.c_2668","DOIUrl":"10.3290/j.jad.c_2668","url":null,"abstract":"<p><strong>Purpose: </strong>The increasing use of monolithic translucent zirconia for fixed dental restora-tions in orthodontic patients has created new challenges for reliable bracket bonding. This in vitro study evaluated the influence of different surface pretreatment protocols on the shear bond strength (SBS) of metal brackets bonded to 3-mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP) and 5-mol% yttria-stabilized partially stabilized zirconia (5Y-PSZ) ceramics using an adhesive resin cement.</p><p><strong>Methods and materials: </strong>Ninety-six specimens were prepared (n = 48 per zirconia type), each providing two bonding interfaces (n = 192). Three surface pretreatment protocols were tested: pumice slurry (PS), silicon carbide burr roughening (SiB), and alumina air-particle abrasion (AP). Metal brackets were bonded using an MDP-containing self-adhesive resin cement and a custom 3D-printed bonding device, applying a standardized load of 7.4 N. Half of the specimens were tested for SBS after 3 days of water storage at 37°C; the remaining half after artificial aging (37,500 thermocycles between 5°C and 55°C) for 150 days. SBS was measured using a universal testing machine. Data were analyzed using non-parametric tests (Kruskal-Wallis; Mann-Whitney U with Bonferroni-Holm correction; α = 0.05).</p><p><strong>Results: </strong>Artificial aging significantly affected SBS, whereas zirconia type had no significant influence. After 3 days, no significant differences were observed among surface pretreatment methods. Following artificial aging, AP and SiB pretreatments achieved significantly higher SBS values than PS for both zirconia types. AP yielded the highest bond strengths overall (up to 51.3 MPa for 5Y-PSZ after 150 days). Spontaneous debonding occurred only in the PS groups.</p><p><strong>Conclusion: </strong>Although AP pretreatment achieved the highest bond strength values, its clinical application is limited by the risk of surface damage and uncontrollable intraoral pressures. SiB pretreatment provided clinically sufficient bond strength while preserving zirconia surfaces, representing a safer and more practical alternative. Pumice slurry alone was inadequate for reliable bonding. Thus, SiB can be recommended as a minimally invasive and effective clinical protocol for orthodontic bonding to zirconia restorations.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"28 ","pages":"65-74"},"PeriodicalIF":2.7,"publicationDate":"2026-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13223366/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148059238","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 In Vitro Evaluation of Residual Fiber Contamination from Applicators in the Adhesive Interface.","authors":"Alicia Miguel-Calvo, Santiago Berrendero, Belén Morón-Conejo, Francisco Martínez-Rus, Guillermo Pradies, Maria Paz Salido","doi":"10.3290/j.jad.c_2687","DOIUrl":"10.3290/j.jad.c_2687","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate and compare the presence and distribution of residual fibers from two different brands of adhesive applicators within the adhesive interface after active application of a universal adhesive.</p><p><strong>Methods and materials: </strong>Eighteen sound human molars were prepared with standardized Class II cavities and randomly assigned to two groups (n = 9) according to the applicator used: group P (Proclinic SAU, Spain) or group K (Kerr, USA). A one-step self-etch universal adhesive (Scotchbond Universal Plus; Solventum, USA) was actively applied following the manufacturer's instructions. After polymerization, specimens were examined under ultraviolet (UV) light using an optical microscope. Residual fibers were identified, quantified, and categorized according to their location (external cavity surfaces, cavosurface margins, internal line angles, axial walls, and cavity floors). Data were analyzed using the Fisher-Freeman-Halton exact test (P 0.05).</p><p><strong>Results: </strong>Residual fibers were detected in all specimens, predominantly on external cavity surfaces, cavosurface margins, and axial walls. Statistically significant differences were observed between the two applicator brands (P 0.05), with group P showing a higher number and greater length of fibers than group K.</p><p><strong>Conclusion: </strong>Both applicator brands released microscopic fibers that became incorporated into the adhesive interface, revealing an unrecognized source of contamination and leading to rejection of the null hypothesis. Fiber distribution was not homogeneous across cavity surfaces. The proposed methodology proved effective for detecting and localizing applicator-derived residues, highlighting an overlooked source of contamination that may influence adhesive performance and restoration durability.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"28 ","pages":"57-64"},"PeriodicalIF":2.7,"publicationDate":"2026-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13169626/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147936034","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":"Influence of Composite Type, Surface Treatment, and Thermocycling Aging on the Shear Bond Strength of Repaired Composite Resins.","authors":"Didar Dilan Hartavi, Rafat Sasany, Murat Tiryaki","doi":"10.3290/j.jad.c_2659","DOIUrl":"10.3290/j.jad.c_2659","url":null,"abstract":"<p><strong>Purpose: </strong>This study evaluated the effects of different surface treatment methods and thermocycling on the shear bond strength (SBS) of repaired composite resin restorations across three composite types (nanohybrid, bulk-fill, and microhybrid).</p><p><strong>Methods and materials: </strong>A total of 252 disk-shaped specimens (Ø20 × 5 mm, n = 7 per group) were fabricated from three composite resins: a nanohybrid composite (Filtek Z550; 3M ESPE), a bulk-fill composite (Opus Bulk Fill; FGM), and a microhybrid composite (Gradia Direct Anterior; GC). The specimens were divided into four subgroups according to surface treatment: no surface treatment (ST-C), airborne-particle abrasion (ST-AO), bur roughening with a medium-grit diamond bur under water cooling (ST-B), and phosphoric acid etching followed by application of a universal adhesive (ST-PH). For all groups, the repair procedure was performed using a nanohybrid composite (Filtek Z550; Ø2.38 × 3 mm). Aging protocols included water storage at 37°C for 24 h (Immediate), thermocycling for 10,000 cycles, and 30,000 cycles between 5°C and 55°C. Shear bond strength (SBS) was measured using a universal testing machine at a crosshead speed of 1 mm/min. Data were analyzed using the Shapiro-Wilk and Levene tests, followed by three-way ANOVA (with stratified one-way ANOVAs where interactions were significant) and Tukey post hoc tests (α = 0.05).</p><p><strong>Results: </strong>A three-way ANOVA revealed that composite type, surface treatment, and aging condition significantly affected SBS (P 0.001). SBS differed significantly among composites and surface treatments (P 0.001). For RC-BF, ST-PH provided the highest bond strength after 10,000 and 30,000 cycles. In RC-MH, bur roughening (ST-B) yielded the highest bond strength at 10,000 cycles. For RC-NH, ST-PH initially showed the highest SBS values; however, at 30,000 cycles, ST-B provided the best repair stability for the RC-NH group (12.96 MPa). However, the highest overall SBS value across all tested materials at this final aging stage was achieved by the RC-BF group treated with ST-PH (13.91 MPa).. Thermocycling significantly reduced SBS (P 0.001). Nanohybrid composites exhibited relatively stable SBS values across aging conditions.</p><p><strong>Conclusion: </strong>Appropriate surface treatment, particularly phosphoric acid etching combined with universal adhesive application, significantly increased shear bond strength following thermocycling. Nanohybrid composites demonstrated stable SBS trends across aging conditions compared with the other materials.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"28 ","pages":"49-55"},"PeriodicalIF":2.7,"publicationDate":"2026-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13138319/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147793836","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":"Evaluation of Micro-Shear Bond Strength of Self-Adhesive Flowable Giomer To Bovine Tooth.","authors":"Eunjin Kim, Yooseok Shin, Dohyun Kim, Jeong-Hee Kim, Ran-Ah Kim, Jeong-Won Park","doi":"10.3290/j.jad.c_2654","DOIUrl":"10.3290/j.jad.c_2654","url":null,"abstract":"<p><strong>Purpose: </strong>Self-adhesive flowable giomer (SAG) has been used in dental practice recently to simplify clinical procedures and shorten chair times. However, there are only few studies evaluating its bond strength to enamel and dentin, resulting in a lack of evidence. The purpose of this study was to compare the micro-shear bond strength with and without adhesive in enamel and dentin to evaluate the self-adhesive ability of SAG.</p><p><strong>Methods and materials: </strong>Sound bovine teeth were used as the tooth substrates. For μ-SBS tests, enamel and dentin specimens were prepared for SAG (Beautifil Kids SA - BK), a self-adhesive flowable composite (Vertise Flow - VF), and a nanohybrid flowable giomer (Beautifil Flow Plus F03 - BF). Two adhesive modes were tested for BK and VF (with self-etching adhesive and no adhesive), and one for BF (with self-etching adhesive). The μ-SBS test was conducted after 24 h and after thermocycling for 10,000 cycles using a universal testing machine.</p><p><strong>Results: </strong>For all materials, when self-etching adhesive was used, the μ-SBS was significantly higher than that of the no-adhesive group (P 0.05). No statistically significant difference was found between the restorative materials under any condition. Thermocycling had no significant effect on the μ-SBS of BK. In the self-etching adhesive group, mixed failure was predominant for all materials. However, in no-adhesive group, adhesive failure and mixed failure were observed at similar levels for all materials.</p><p><strong>Conclusion: </strong>The self-adhesive resin without adhesive showed lower bonding strength in both enamel and dentin compared to the one with adhesive.</p><p><strong>Clinical relevance: </strong>Although there were no significant differences in bond strength stability between materials, SAG still offers a simplified bonding process without compromising bond strength, making it a viable option for clinical use.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"28 ","pages":"39-47"},"PeriodicalIF":2.7,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13092815/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147701345","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":"Too Wet, Too Dry? Influence of Water Contamination and Overdrying on the Bond Strength of a Universal Adhesive to Dentin.","authors":"Malte Peters, Carolin Mempel, Kirstin Vach, Silke Jacker-Guhr, Nadine Schlueter, Anne-Katrin Luehrs","doi":"10.3290/j.jad.c_2521","DOIUrl":"10.3290/j.jad.c_2521","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this in vitro study was to measure the microtensile bond strength (μTBS) and the contact angle of a universal adhesive (Prime & Bond Active) to overdried and water-contaminated human dentin.</p><p><strong>Materials and methods: </strong>After exposing flat dentin surfaces (5×5 mm2) of 60 caries- and restoration-free molars, test groups were either overdried or water-contaminated before adhesive application (self-etch) or after phosphoric acid etching (etch&rinse). In control groups, the adhesive was applied according to the manufacturer's instructions. μTBS (n = 45 samples) was analyzed (24 h/thermocycling: 15,000 cycles, 5/55°C). Fracture patterns were assessed microscopically. Contact angles were measured using the sessile drop method. Statistical analysis was performed using Tobit regression and Scheffé correction for bond strength data and Kruskal-Wallis test for contact angle measurements (α = 0.05).</p><p><strong>Results: </strong>Overall, µTBS was significantly higher after etch&rinse application compared to the self-etch mode before (P 0.001, Δ 11.04 MPa) and after aging (P 0.001, Δ 6.73 MPa). The highest μTBS (29.9 ± 10.4 MPa) was achieved by the etch&rinse control before aging. For etch&rinse application, water contamination and overdrying initially led to significantly lower µTBS compared to the control (P = 0.014/P = 0.007). Aging significantly decreased μTBS in both etch&rinse control and overdry groups (P 0.001/P = 0.036). Fracture modes were predominantly adhesive (90%). Contact angle on water-contaminated dentin was significantly lower for self-etch than for etch&rinse mode (P = 0.008).</p><p><strong>Conclusion: </strong>The adhesive application mode significantly influenced bond strength. Dentin surface condition initially affected the µTBS solely in etch&rinse mode. Only on water-contaminated dentin, the contact angle was influenced by the adhesive application mode.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"28 ","pages":"29-38"},"PeriodicalIF":2.7,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13033893/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147535261","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 the Design and Exposure Mode of Different Multiple-Peak Light-Curing Units on Light Emission, Temperature Rise, and Intraoral Access.","authors":"Maria Tereza Hordones Ribeiro, Guilherme Mendonça Benoni, Maribí Isomar Terán Lozada, Airin Karelys Avendaño Rondon, Gisele Rodrigues da Silva, Carlos José Soares","doi":"10.3290/j.jad.c_2598","DOIUrl":"10.3290/j.jad.c_2598","url":null,"abstract":"<p><strong>Purpose: </strong>To measure the tip diameter (mm) and the ability to cover the anterior and posterior large restorations, radiant power (mW), radiant exitance (mW/cm2), emission spectrum (mW/cm2/nm), radiant exposure (J/cm2), the effect of the design on the access to the mouth posterior region, the temperature rise inside the pulp of three light-curing units (LCUs) and a new LCU available in the Brazil.</p><p><strong>Methods and materials: </strong>Four LCUs that cost over US$900, three well-established (Bluephase G2, Ivoclar Vivadent; VALO Grand, Ultradent; and VALO Cordless, Ultradent), and a new LCU (Quazar, FGM) were tested in standard mode (20 s for all LCUs), high mode (3 s for VALO Cordless, 5 s for Quazar, and 20 s for Bluephase G2), and Xtra power mode (3 s for VALO Grand). The radiant power (mW) and emission spectrum (mW/nm) were measured using an integrating sphere connected to a fiberoptic spectroradiometer. The internal tip diameter (mm) of each LCU was measured using a digital caliper and was used to calculate the radiant exitance (mW/cm2). Radiant exitance profiles at the light tip were measured using a laser beam profiler. The radiant exposure (J/cm2) was calculated. The in vitro temperature rise produced by LCUs inside the pulp cavity of molar teeth was measured using a thermocouple. The mouth access of the LCU tip on the occlusal surface of the first mandibular molar tooth with two mouth openings of 25 mm and 45 mm at the incisors was evaluated. The cost of each LCU in Brazil was correlated with internal tip diameter, radiant power, and radiant exitance.</p><p><strong>Results: </strong>All the LCUs were multiple-peak LCUs, and a uniform output. Quazar, VALO Cordless, and VALO Grand could maintain a perpendicular position regardless of mouth interincisal opening, while the Bluephase G2 required a tip angulation of 31.6 degrees at the 25 mm interincisal opening. The VALO Grand and VALO Cordless produced the highest temperature rise in standard mode ( 2.5°C), while in high mode, all LCUs produced lower temperature increases that use 5 s for Quazar and 3 s for VALO Grand and VALO Cordless, except for Bluephase G2, which produced a higher temperature rise ( 2.0°C) when activated for 20 s. There was a positive correlation between the cost of these LCUs and their averaged radiant power, diameter and the radiant exitance.</p><p><strong>Conclusions: </strong>The LCUs tested emit light in the blue and violet spectra, characterizing them as multiple peaks. The temperature increases in the produced pulp remained within safe thermal limits ( 2.5°C), although standard-mode exposures produced higher pulp temperature rises. Bluephase G2 created higher angulation at 25 mm of interincisal mouth opening. The Quazar LCU produced a light output that was comparable to that from leading LCUs.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"28 ","pages":"19-28"},"PeriodicalIF":2.7,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13022565/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147505802","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 Storage Time After Surface Treatment of Zirconia on Surface Free Energy and Bond Strength of Composite Cement.","authors":"Mina Aker Sagen, Heidi Vanessa Holm, Freya Andersen, Per Vult von Steyern","doi":"10.3290/j.jad.c_2562","DOIUrl":"10.3290/j.jad.c_2562","url":null,"abstract":"<p><strong>Purpose: </strong>Surface treatment of zirconia before cementation can be performed using different methods, e.g. airborne particle abrasion (APA) or various etching protocols. This study evaluated the effect of storage time between surface treatment and cementation on the surface free energy (SFE) of zirconia, the bond strength of composite cement, and failure mode.</p><p><strong>Materials and methods: </strong>Rod-shaped zirconia specimens were fabricated and assigned to two surface treatment groups: APA (n = 80) and hot etching with potassium hydrogen difluoride (KHF2, n = 80). Each group was divided into four storage time subgroups: immediate, 24 h, 1 week, and 1 month. After storage, specimens were either analyzed for SFE (n = 10) or cemented for shear bond strength (SBS) testing and failure mode evaluation (n = 10).</p><p><strong>Results: </strong>Two-way analysis of variance (ANOVA) showed a significant effect of both surface treatment and storage time on SFE (P 0.05), with KHF2-etched zirconia exhibiting the highest values across all time points. In both groups, SFE gradually decreased with increased storage. Surface treatment did not significantly affect SBS (P > 0.05). Storage time significantly influenced SBS (P 0.05), specifically for KHF2-etched zirconia; post-hoc comparisons showed higher SBS after 1 week than at immediate testing (P 0.05). Although adhesive failures to cement increased with longer storage time for KHF2-etched specimens, this trend was not significant (P > 0.05). For APA specimens, the highest incidence of adhesive failures (n = 9) to cement occurred after 24 h of storage.</p><p><strong>Conclusion: </strong>Given the significant decrease in SFE with prolonged storage and adhesive failures to zirconia tended to increase over time, minimizing the interval between surface treatment and cementation is recommended.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"28 ","pages":"11-18"},"PeriodicalIF":2.7,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12980088/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147437613","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":"Influence of an MDP Salt-Based Surface Cleaner on Bond Strength to Saliva-Contaminated Dentin At Different Stages of a Self-Etch Adhesive Procedure: An In Vitro Pilot Study.","authors":"Ruhsan Müdüroğlu Adıgüzel, Leyla Kerimova Köse, Eda Çakmak Aktan, Neslihan Arhun","doi":"10.3290/j.jad.c_2503","DOIUrl":"10.3290/j.jad.c_2503","url":null,"abstract":"<p><strong>Purpose: </strong>This in vitro study was designed to assess the influence of KATANA™ Cleaner (KC) on the microshear bond strength (μSBS) of composite resin restorations to saliva-contaminated dentin surfaces at various stages of the bonding process using a two-step self-etch adhesive system.</p><p><strong>Materials and methods: </strong>A total of 140 sound human molars were randomly assigned into 14 groups according to the timing of saliva contamination and the decontamination approach. Saliva contamination was introduced at critical phases of adhesive application (before primer, after primer, after bond application, and after bond polymerization). KC was used for surface decontamination where applicable. Clearfil SE Bond adhesive and Filtek Z250 composite resin were applied using standardized procedures. μSBS test was performed after 24-h water storage, and failure modes were analyzed using stereomicroscopy. Additionally, dentin surfaces were evaluated under SEM. EDS was employed to evaluate the structure of the adhesive surface. Data were statistically analyzed using one-way ANOVA and LSD post hoc tests (α = 0.05).</p><p><strong>Results: </strong>A significant difference in μSBS was observed among the groups (P = 0.029). The highest μSBS (29.5 ± 9.25 MPa) was recorded in the group that was contaminated after primer application and subsequently decontaminated with KC prior to bonding, surpassing even the uncontaminated control group. Decontamination following contamination after polymerization also led to significantly improved μSBS (26.5 ± 10.78 MPa). Groups without any decontamination exhibited significantly lower μSBS. Predominantly cohesive (in composite resin) and mixed failure modes were observed in high-strength groups, while adhesive failures were more common in low-strength groups.</p><p><strong>Conclusion: </strong>KC significantly improved the μSBS of composite resin in saliva-contaminated dentin, particularly when applied after primer or post-polymerization contamination. These findings support the clinical use of KC as an effective decontamination protocol to maintain bonding performance under compromised isolation.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"28 ","pages":"1-10"},"PeriodicalIF":2.7,"publicationDate":"2026-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12887243/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146145291","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 Etching Mode on the Dentin Bond Durability of Universal Adhesives.","authors":"Sena Balaban, Hacer Deniz Arısu","doi":"10.3290/j.jad.c_2447","DOIUrl":"10.3290/j.jad.c_2447","url":null,"abstract":"<p><strong>Purpose: </strong>This study evaluated the effects of etching mode, pH, and composition on the shear bond strength of three universal adhesives (UAs), in comparison with conventional adhesives.</p><p><strong>Materials and methods: </strong>Crowns from 110 extracted third molars were sectioned to obtain 220 dentin surfaces and allocated into 11 groups (n = 20) based on adhesive system (OptiBondFL, ClearfilSE Bond, All-Bond Universal, OptiBond Universal, G2-Bond Universal) and etching mode (etch-and-rinse [ER], self-etch [SE], selective dentin etching [SDE]). Each group was divided into pre- and post-aging sub-groups. Shear bond strength was tested at 24h and after 5,000 thermal cycles. The resin-dentin interface was examined using scanning electron microscopy (SEM). Data were analyzed using one-way ANOVA, LSD post-hoc and paired-sample t-tests (α = 0.05).</p><p><strong>Results: </strong>All-Bond Universal exhibited the highest bond strength across all modes, while OptiBond Universal showed the lowest. No significant difference was observed between ER and SE modes for most UAs, except G2-Bond Universal. SDE did not result in significantly higher bond strength compared to SE or ER in any group. After aging, G2-Bond Universal in SE mode exhibited the highest bond strength.</p><p><strong>Conclusion: </strong>Bond strength was influenced by etching mode, pH, and composition of the adhesive. UAs performed comparably to the gold-standard SE adhesive in SE mode; however, their performance in ER mode varied depending on their composition and pH.</p><p><strong>Clinical relevance: </strong>To ensure predictable clinical outcomes, clinicians should recognize that UAs do not perform uniformly. Selecting both the adhesive and etching mode according to the adhesive's composition may enhance long-term bonding success.</p>","PeriodicalId":94234,"journal":{"name":"The journal of adhesive dentistry","volume":"27 ","pages":"297-305"},"PeriodicalIF":2.7,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12720019/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145795772","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}