Journal of Clinical and Experimental Dentistry最新文献

{"title":"Strengthening Collaborations in Latin America for Advancing Oral cancer research and public health policies.","authors":"Juliana L Schussel, Mariana Villarroel-Dorrego, Sven Eric Niklander","doi":"10.4317/jced.62884","DOIUrl":"10.4317/jced.62884","url":null,"abstract":"<p><strong>Background: </strong>Oral cancer (OC) represents a significant public health challenge in Latin America, with similar challenges presented in most countries of the region. Regional partnerships are needed, as they can enhance the development of educational campaigns, prevention strategies addressing shared risk factors, and institutional strengthening. Additionally, expanding collaborations can attract international funding and integrate LAC researchers into global initiatives.</p><p><strong>Material and methods: </strong>This review examines the state of OC research in the region, highlighting collaborative efforts, gaps, and opportunities for advancement.</p><p><strong>Results: </strong>We identified 17 studies that have studied different aspects of oral cancer in Latin American countries (LAC). Studies varied in design, with ecological studies and case series being the most common. Most studies focused purely on OC, while research on oral potentially malignant disorders (OPMD) remains limited. Collaborative studies have increased over the past decade, with a growing focus on regional risk factors such as tobacco and alcohol use. Despite these advances, challenges persist, including limited epidemiological data, underreporting of cases, and inadequate public health infrastructure.</p><p><strong>Conclusions: </strong>Collaborative networks have the potential to reduce these gaps by pooling resources, expertise, and data. Improved public health policies supported by robust local data are crucial for reducing the OC burden in LAC. Strengthening regional and international collaborations will be fundamental for the advancement of OC research, improving early detection, and implementing effective prevention and treatment strategies tailored to the region's unique challenges. <b>Key words:</b>Oral cancer, mouth neoplasms, Latin America, oral potentially malignant disorders.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 7","pages":"e855-e861"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12357501/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144873412","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":"Blood pressure measurement in dental offices and dentists' cardiovascular risk management: A cross-sectional study.","authors":"Johanna Otero, Mario Guerrero, Yamileth Ortiz-Gomez","doi":"10.4317/jced.62888","DOIUrl":"10.4317/jced.62888","url":null,"abstract":"<p><strong>Background: </strong>Blood pressure measurement (BPM) is a primary test for detecting and managing cardiovascular risk, is an inexpensive strategy and can be performed by non-physician health workers (NPHWs). This study explored the association between the BPM in dental offices and other dentists' practices related to cardiovascular risk management.</p><p><strong>Material and methods: </strong>A cross-sectional study was conducted. A self-administered electronic survey was used, validated by experts with more than 10 years of clinical, teaching and research experience. Simple random sampling was used to select the participants at an anonymized database. The survey was completed by dentists who practice clinically at least part-time in Colombia. Descriptive and multivariate analyses were conducted.</p><p><strong>Results: </strong>A total of 232 dentists were interviewed. Blood pressure was measured in the dental office by 40.5% of the dentists, with 27.2% using an automatic device. After adjusting for age, education, and support staff, an association was observed between the absence of BPM in dental offices and the following practices: not inquiring about alcohol use, physical inactivity, high cholesterol, obesity, a lower likelihood of measuring glucose in the dental office, not referring patients to a laboratory for glucose measurement, not communicating with medical professionals to arrange patient treatment, and not educating people with obesity about the risk of systemic disease.</p><p><strong>Conclusions: </strong>BPM in dental offices is limited. Most dentists report inquiring about modifiable cardiovascular risk factors, as well as making referrals, providing counseling, and offering education. However, the absence of BPM in dental offices is associated with the omission of other practices related to cardiovascular risk management. NPHWs like dentists can task sharing cardiovascular risk management. <b>Key words:</b>Blood pressure, hypertension, cardiovascular risk factors, primary prevention, dental office.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 7","pages":"e840-e847"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12357504/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144873384","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 different size of prophylaxis brush on marginal microleakage and hybrid layer morphology of composite restorations.","authors":"Monique Evelin Pereira Da Silva, Maria Eduarda Da Silva Mendes, Tayná Souza Gomes da Silva, Danielle Ferreira Sobral-Souza, Marlon Ferreira Dias, Paulo Cardoso Lins Filho, Hilcia Mezzalira Teixeira, Audrey Nunes de Andrade, Antonio José Torres Neto, Renata Pedrosa Guimarães","doi":"10.4317/jced.62831","DOIUrl":"10.4317/jced.62831","url":null,"abstract":"<p><strong>Background: </strong>Tooth cavity cleaning is a fundamental step to achieve greater adhesion in composite resins restorations. This study aimed to evaluate the influence of different sizes of prophylaxis brush on marginal microleakage and hybrid layer morphology in composite restorations.</p><p><strong>Material and methods: </strong>Thirty Class V tooth preparations were distributed into 3 groups according to the type of cavity cleaning (n=10): G1: no prophylaxis; G2: Prophylaxis brush with regular size (Robson Brush Prophylaxis/DHPro); G3: Prophylaxis brush with reduced size (Robson Microtuft®/DHPro brush). After the respective cleaning protocol, third human molars were restored using a universal adhesive system (Single Bond Universal - 3M ESPE) and composite resin (FiltekTM Z350 XT 3M ESPE). To characterize the dentin substrate, the samples were prepared until the selective conditioning step and evaluated by scanning electron microscope (SEM) and hybrid layer's morphology was also evaluated after the restorative procedure (n=2). To assess the marginal microleakage, the sample were submitted to the thermocycling process, finished, and polished. After this step, the images were obtained by Micro-CT, and two calibrated evaluators scored the depth of dye penetration as 0 to 3. The Kruskal-Wallis test was used to compare groups regarding marginal microleakage (<i>p</i><0.05).</p><p><strong>Results: </strong>G1 and G2 showed the presence of a gap between restoration and dentin, however, G3 showed greater regularity compared to the other groups. In microleakage scores, G1 showed more frequency for score 3 followed by G3 e G2 (<i>p</i>>0.05).</p><p><strong>Conclusions: </strong>Therefore, the Robson Microtuft® brush did not influence the marginal infiltration of the adhesive restorations, but the absence of prior prophylaxis increased the levels of infiltration and obtained a more irregular adhesive interface. <b>Key words:</b>Microleakage. marginal adaptation. universal adhesives.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 7","pages":"e764-e770"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12357503/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144873407","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":"Concordance Between Clinical and Histopathological Diagnoses of Oral and Maxillofacial Lesions in Thailand: A 20-Year Retrospective Study.","authors":"Chanyanuch Teerawong, Tanyaaonann Chulaksanadecha, Thiyada Anansila, Punnapa Krasaetanont, Chaidan Intapa, Chalatip Chompunud Na Ayudhya","doi":"10.4317/jced.62771","DOIUrl":"10.4317/jced.62771","url":null,"abstract":"<p><strong>Background: </strong>Accurate diagnosis is crucial for effective treatment planning and management. This study aims to evaluate the concordance between clinical and histopathological diagnoses of oral biopsy specimens submitted to the Oral Pathology Unit, Faculty of Dentistry, Naresuan University, Thailand, over a 20-year period.</p><p><strong>Material and methods: </strong>Histopathology reports from 2004 to 2023 were retrieved and reviewed. Data on age, gender, lesion location, clinical diagnosis, and histopathological diagnosis were collected. The concordance between clinical and histopathological diagnoses, as well as factors associated with the concordance rate, were analyzed.</p><p><strong>Results: </strong>Of 1,253 biopsied cases, a total of 1,148 were included in the study. These comprised 513 males (44.69%) and 635 females (55.31%), with an average age of 40.97 ± 20.70 years. The majority of lesions were reactive and inflammatory lesions (35.1%), followed by epithelial pathology (10.02%), and immune-mediated lesions (7.58%), respectively. Twenty-nine cases (2.53%) were malignant. Overall, clinico-pathological concordance was observed in 69.34% of cases. The highest and lowest concordance rates were noted in immune-mediated lesions and non-odontogenic cysts and tumors, respectively.</p><p><strong>Conclusions: </strong>There is considerable variability in concordance among different oral lesion types. The results of this study provide insights into the prevalence of oral lesions in a group of Thai population and offer a valuable database for clinicians in developing clinical diagnoses for oral lesions. <b>Key words:</b>Concordance, Oral biopsy, Clinical diagnosis, Histopathological diagnosis.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 7","pages":"e834-e839"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12357509/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144873387","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":"Microfiltration of glass ionomer restorations in teeth treated with silver diamine fluoride: A scoping review.","authors":"Ana Lucia Avellaneda-Gonzales, Maria Elizabeth Cruz-Flores, Rosa Josefina Roncal-Espinoza, Alfredo Carlos Manuel Rendon-Alvarado","doi":"10.4317/jced.62928","DOIUrl":"10.4317/jced.62928","url":null,"abstract":"<p><strong>Background: </strong>The current approach to dental caries focuses on early diagnosis and intervention at initial stages. In the presence of a carious lesion, a minimally invasive strategy is favored. Within this context, materials have been developed to promote remineralization, prevention, and conservative treatments, with silver diamine fluoride (SDF) standing out as an effective alternative. The purpose of this scoping review is to evaluate, through a literature review, the success of restorations in teeth treated with SDF, using microleakage as the evaluation parameter.</p><p><strong>Material and methods: </strong>A search was conducted in electronic databases including PubMed, Virtual Health Library, EBSCOHost, SCOPUS, ProQuest, and ScienceDirect. The search was carried out up to May 24, 2024, following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines.</p><p><strong>Results: </strong>A total of 298 articles were retrieved, of which only 8 met the inclusion criteria and were used for the literature review. The selected studies underwent a quality control review to assess the success of restorations in teeth treated with SDF.</p><p><strong>Conclusions: </strong>Although information on the effect of SDF on the adhesion of resin-modified glass ionomer restorations is limited, some studies show no correlation indicating that prior SDF treatment causes microleakage in such restorations. <b>Key words:</b>Dental caries, Preventive dentistry, Dental restoration, Silver diamine fluoride.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 7","pages":"e862-e866"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12357513/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144873410","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":"Clinical assessment of marginal and bulk fractures and discoloration in posterior composite after 12 to 36 months: A retrospective study.","authors":"Vahideh Motamedosanaye, Hadi Akbari, Sara Ziaaddini, Mohammad Mostafazadehbakhtiyary, Atefeh Sadat Langari","doi":"10.4317/jced.62724","DOIUrl":"10.4317/jced.62724","url":null,"abstract":"<p><strong>Background: </strong>This retrospective cohort study aimed to evaluate the marginal discoloration, fractures, and bulk fractures of posterior composite restorations over a period of 1 to 3 years.</p><p><strong>Material and methods: </strong>A total of 281 restorations, performed by a restorative dental specialist, were assessed using modified United States Public Health Service (USPHS) criteria. Demographic data, occlusal information, and patient habits were collected, along with characteristics of the restoration (composite resin type, adhesive, restoration type, and treated tooth). Data were analyzed using the chi-square test and independent t-test (α = 0.05).</p><p><strong>Results: </strong>Posterior Gradia, P60, and X-tra Fil were employed in 51.2%, 38.07%, and 14.23% of the restorations, respectively. Most of the restorations (81.5%) received an Alpha score for marginal discoloration, which was significantly associated with composite resin type, colored beverage consumption, oral hygiene, caries risk, and restoration classification (<i>P</i><0.05). Bravo discoloration was more common in patients who received Xtra Fil composite, consumed moderate to high amounts of colored beverages, had moderate to poor oral hygiene, and exhibited high caries risk. Additionally, Bravo discoloration was more frequent in Class II and build-up restorations. Restorations with a Bravo score were found to have significantly higher average restoration age, patient age, and a greater number of missing teeth compared to those with an Alpha score (<i>P</i><0.05). In terms of marginal fractures, 99.6% of restorations received an Alpha score, with no significant associations with the evaluated variables. Furthermore, 99.6% of restorations showed no bulk fractures.</p><p><strong>Conclusions: </strong>Posterior composite resin restorations demonstrated clinically acceptable performance with respect to marginal discoloration and integrity after 12 to 36 months. <b>Key words:</b>Composite filling, marginal fracture, bulk fracture, discoloration.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 7","pages":"e848-e854"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12357502/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144873385","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":"Bioceramic dressing and its influence on intratubular penetration and bond strength of endodontic sealers.","authors":"Lívia Pacheco Rodrigues, Jefferson Ricardo Pereira, Fabiana Vieira Vier-Pelisser, Leonardo Thomasi Jahnke, Gabriel Barcelos Só, Ricardo Abreu da Rosa, Marcus Vinicius Reis Só","doi":"10.4317/jced.62609","DOIUrl":"10.4317/jced.62609","url":null,"abstract":"<p><strong>Background: </strong>This study aimed to evaluate the influence of bioceramic root canal dressing (BRCD) BIO-C TEMP (BT) on intratubular penetrability through confocal laser scanning microscopy (CLSM) and bond strength (push out) of epoxy resin AH Plus (AH) and bioceramic Bio-C (BC) sealers and evaluate the dentin surface after removing the intracanal medication by scanning electron microscopy (SEM).</p><p><strong>Material and methods: </strong>After biomechanical preparation, 48 bovine incisors were filled and evaluated for bond strength and intratubular penetrability. The groups were established by the type of sealer used: AH (n=24) or BC (n=24) and no use (0BT) (n=8) or use of root canal dressing for two different experimental times, 7 (7BT) (n=8) and 30 (30BT) (n=8) days. For SEM evaluation, five unfilled teeth were used: without BT (n=1), BT for 7 (n=2) and 30 (n=2) days. Kruskal-Wallis and T-tests were performed for bond strength analysis. Descriptive analysis was used in CLSM and SEM evaluations.</p><p><strong>Results: </strong>BT decreased the bond strength of AH and BC sealers in both experimental times (7 and 30 days) (<i>P</i>< 0.05). The intratubular penetration with AP was higher than that with BC. SEM showed remnants of BT on the dentin surface in both groups (7 and 30 days). The AH Plus sealer showed more evident intratubular penetration than the Bio-C sealer.</p><p><strong>Conclusions: </strong>It is not possible to remove a BRCD completely from the root canal. A bioceramic root canal dressing Bio-C Temp decreased the bond strength of both tested sealers, epoxy resin AH Plus and bioceramic Bio-C Sealer. <b>Key words:</b>Root canal dressing, bioceramic, scanning electron microscopy, laser scanning confocal microscopy, sealer.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 6","pages":"e627-e634"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12225775/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144575574","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 Analysis of Enamel Surface Integrity and Pulpal Temperature in Debonding Metallic Brackets: A Study of Two Intensity Levels of Diode Laser Versus Conventional Method.","authors":"Remmiya Mary Varghese, Ashwin George Mathew, Shreya Kishore, Lincy Rachel Thomas, Reshma Mohan","doi":"10.4317/jced.62738","DOIUrl":"10.4317/jced.62738","url":null,"abstract":"<p><strong>Background: </strong>The process of removing metallic orthodontic brackets creates difficulties which affect the enamel surface condition along with excessive temperature rise in the pulp. Traditional ethnomethodological debonding methods lead to enamel destruction yet the advent of diode lasers promises to decrease adverse side effects. Speakers evaluate the impact of using two different laser intensity settings during diode laser-assisted bracket debonding on enamel surface preservation andclarations of intrapulpal temperature changes.</p><p><strong>Material and methods: </strong>A test involved sixty human premolars bonded with metallic brackets by means of a standardized adhesive system that was then randomly distributed into three groups where each group consisted of twenty premolars (Group A - conventional debonding by pliers, Group B - laser debonding at 2.5 W, and Group C - laser debonding at 3.5 W). The research used thermocouple technology to monitor pulpal temperature changes while Scanning Electron Microscopy (SEM) together with modified Adhesive Remnant Index (ARI) evaluated the condition of enamel surfaces. A statistical Analysis was performed by using ANOVA and post hoc tests in which the p value was set below 0.05.</p><p><strong>Results: </strong>The debonding technique by conventional means (Group A) generated a mean temperature elevation of 2.1 ± 0.5°C in the pulpal area while Group B with 2.5 W laser power and Group C with 3.5 W laser power led to temperature rises of 4.5 ± 0.8°C and 6.2 ± 1.1°C respectively. Quantitative evaluation through SEM revealed Group A had the highest rates of enamel damage whereas Group C registered the lowest amount of enamel modification. The ARI results confirmed that Group A experienced more adhesive residual on enamel surfaces whereas both Groups B and C maintained more adhesive material on their bracket bases during the debonding process.</p><p><strong>Conclusions: </strong>Diode laser-assisted brackets debonding conducted at low and high intensity settings produced better enamel preservation results than standard debonding methods. The pulpal temperature generated at the 3.5 W setting exceeded other measurements which justifies careful use of this method. A diode laser at 2.5 W offers a suitable tradeoff between enamel protection and pulpal thermal safety. <b>Key words:</b>Diode laser, orthodontic debonding, enamel integrity, pulpal temperature, metallic brackets.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 6","pages":"e713-e717"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12225760/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144575576","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":"Ion Release, Microhardness and Enamel Demineralization Resistance of New Bioactive Restorative Materials.","authors":"Tayseer Maaly, Fawzy A Darweesh, Mohamed Samir Elnawawy","doi":"10.4317/jced.62357","DOIUrl":"10.4317/jced.62357","url":null,"abstract":"<p><strong>Background: </strong>The objective of the study was to assess fluoride and calcium release from new bioactive materials and to correlate the results with surface hardness and enamel demineralization resistance.</p><p><strong>Material and methods: </strong>Three ion releasing restorative materials were considered: Surefil one (SO), Equia forte fil HT (EF), and Activa bioactive resorative (AB). Baseline microhardness (MH) of the restorative materials was recorded. The amount of released fluoride and calcium ions and microhardness of the materials were estimated at different intervals of 7,14 and 21 days storage in distallid water. Ion release values were recorded using Ionchromatography. Finally, enamel demineralization resistance was evaluated using a microhardness tester. Enamel surface morphology, calcium and phosphorous wt. % were evaluated utilizing the scanning electron microscopy with energy dispersive X-ray spectroscopy (SEMEDX).</p><p><strong>Results: </strong>SO released more fluoride and lower calcium ions than the other groups (<i>p</i>< 0.05). EF recorded more fluoride and calcium ion release compared to AB. The highest MH values at all intervals were for SO followed by EF, both materials exhibited significant MH increase upon storage. AB exhibited the lowest MH which decreased upon storage. In the acid resistance test, EF showed effective resistance to demineralization followed by AB.</p><p><strong>Conclusions: </strong>EF is an effective restorative material when applied in cariogenic media with adequate surface hardness qualities upon storage. <b>Key words:</b>Bioactive material, Ion release, Enamel demineralization resistance, Microhardness.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 6","pages":"e656-e664"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12225766/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144575596","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 the Effect of Rosmarinic Acid as an Antioxidant Agent on Shear Bond Strength of Resin Composite to Bleached Enamel.","authors":"Hamideh Sadat Mohammadipour, Majid Akbari, Moona Zamanpour, Atefeh Nemati-Karimooy, Arsalan Shahri, Mehrzad Khorshid","doi":"10.4317/jced.62309","DOIUrl":"10.4317/jced.62309","url":null,"abstract":"<p><strong>Background: </strong>Tooth bleaching, a routine esthetic dental procedure, can compromise bond strength to enamel and dentin, especially if composite restorations are bonded immediately post-bleaching due to residual peroxide and free radicals. To address this, various treatments, including antioxidants like sodium ascorbate (SA), have been used, though SA may increase bacterial accumulation. Rosmarinic acid (RA), an alternative antioxidant, offers additional antibacterial and adhesive benefits. This study evaluates the effect of RA application time on shear bond strength (SBS) in bleached enamel, comparing its efficacy with SA under varying treatment durations. Three null hypotheses regarding RA's impact on SBS are tested.</p><p><strong>Material and methods: </strong>The labial surfaces of 60 freshly extracted bovine incisors were randomly assigned into 6 groups and subjected to a specific surface treatment as follows: no bleaching procedure (NBL), bleaching with 38% hydrogen peroxide (BL), BL+ 10% sodium ascorbate for 10 min (SA), BL+ RA for 10 seconds (RA1), 60 seconds (RA2) and 10 min (RA3). The resin composite was bonded to enamels s immediately after these treatments. After storage in water for 24 hours, the bonded samples were mounted on a universal testing machine and loaded to the fracture point. Data analysis was performed using Kolmogorov-Smirnov, Lilliefors, One-way analysis of variance and Games-Howell tests.</p><p><strong>Results: </strong>The NBL group had the highest SBS, comparable only to SA (<i>P</i>= 0.908). SA outperformed all RA groups (<i>P</i>< 0.001). RA3 showed the lowest SBS, significantly lower than RA1 (<i>P</i>= 0.011). The main fracture mode in all research groups was adhesive failure.</p><p><strong>Conclusions: </strong>Rosmarinic acid was not able to reverse the bond strength to enamel immediately after the bleaching process, regardless of the duration of application. <b>Key words:</b>Antioxidant agents, Dental bleaching, Enamel, Rosmarinic acid, Shear bond strength.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 6","pages":"e619-e626"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12225771/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144575578","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}