Dentistry Journal最新文献

{"title":"Pulp Responsiveness of Healthy Non-Pathological Teeth Following Surgical Enucleation of Cysts.","authors":"Syed Nabil, Muhd Fazlynizam Rashdi, Abd Jabar Nazimi","doi":"10.3390/dj13030116","DOIUrl":"10.3390/dj13030116","url":null,"abstract":"<p><p><b>Background/Objectives</b>: Odontogenic cysts are pathological cavities lined by cells arising from odontogenic epithelial cells, occurring mostly on the tooth-bearing areas of the jaws. It is common to find that the apices of the teeth around the cyst are within the cyst's cavities due to its expansion. This study aims to assess the outcome of cyst enucleation on the associated teeth, specifically the latter's responsiveness after cyst enucleation. <b>Methods</b>: This retrospective study examined a sample of patients who had been previously treated for odontogenic cysts from 1 January 2000 to 31 December 2021. A list of patients was obtained and included whether they met the imposed inclusion criteria. The data collected included the patients' preoperative and postoperative electric pulp testing readings and their timings. <b>Results</b>: In total, 77 individual teeth from 19 patients were included after meeting the inclusion/exclusion criteria. Overall, 57 out of the 77 (74%) teeth were responsive following long-term follow-up. Among the 57 teeth with a positive response, 8 teeth were initially non-responsive and regained their responsiveness after a period of time. Pulp responsiveness recovery was seen even 300 days after surgery. <b>Conclusions</b>: It is not certain that a tooth with apices involved in a cyst cavity will be non-vital following enucleation. It is recommended that these teeth be reassessed for a minimum of 10 months postoperatively before proceeding with root canal treatment.</p>","PeriodicalId":11269,"journal":{"name":"Dentistry Journal","volume":"13 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11941462/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143709116","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":"Oral Hygiene Management of Hematologic Patients Undergoing Auto-Transplantation: An Observational Study.","authors":"Marco Miceli, Elisabetta Carli, Enrico Orciolo, Maria Rita Giuca, Rossana Izzetti","doi":"10.3390/dj13030115","DOIUrl":"10.3390/dj13030115","url":null,"abstract":"<p><p><b>Background/Objectives:</b> The present study evaluated the effectiveness of a prevention protocol involving oral hygiene, instructions, and motivation in patients eligible for hematopoietic stem cell transplantation (HSCT). <b>Methods:</b> Consecutive patients scheduled for HSCT were enrolled. All patients received a complete dental examination aimed at assessing periodontal health status through periodontal charting and registration of the levels of plaque and inflammation. Subsequently, patients received professional oral hygiene care and were instructed on and motivated toward oral prophylaxis prior to HSCT. Upon engraftment, patients received dedicated instructions to improve oral hygiene maneuvers. After HSCT, patients were re-evaluated for periodontal clinical parameters. The Oral Health Impact Profile-14 (OHIP-14) questionnaire was also administered to evaluate perceived oral health status. <b>Results:</b> Thirty-five patients (18 males and 17 females, with a mean age of 43.28 ± 11.73 years) were enrolled. An overall improvement was noted in periodontal parameters. However, despite plaque reduction, inflammation was still present because of the treatment. The OHIP-14 score slightly worsened after HSCT. <b>Conclusions:</b> Professional oral hygiene and prophylaxis proved effective in improving the oral health status of patients undergoing HSCT, potentially impacting post-treatment outcomes. Further assessment is needed to validate these results.</p>","PeriodicalId":11269,"journal":{"name":"Dentistry Journal","volume":"13 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11941489/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143709108","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":"Is Sustainability Part of the Drill? Examining Knowledge and Awareness Among Dental Students in Bucharest, Romania.","authors":"Ana Maria Cristina Țâncu, Marina Imre, Laura Iosif, Silviu Mirel Pițuru, Mihaela Pantea, Ruxandra Sfeatcu, Radu Ilinca, Dana Cristina Bodnar, Andreea Cristiana Didilescu","doi":"10.3390/dj13030114","DOIUrl":"10.3390/dj13030114","url":null,"abstract":"<p><p><b>Background.</b> Despite dentistry's alarmingly high energy use, plastic waste, and travel emissions, research on Romanian dental students' sustainability awareness is absent. This study aimed to assess their knowledge of the environmental impact of dental materials and practices, hypothesizing that early exposure to sustainability education would benefit preclinical students most. <b>Materials and Methods.</b> A cross-sectional survey using a form questionnaire with 15 items was conducted on 1800 dental students at Carol Davila University of Medicine and Pharmacy, Bucharest, Romania, for one week in March 2022. The questionnaire, consisting of socio-demographics, students' perspectives on sustainability in dentistry, and personal sustainability, was analyzed using SPSS 26. Data analysis included the Shapiro-Wilk test for normality, Fisher's exact test for categorical variables, the Mann-Whitney U test for non-parametric quantitative comparisons, and Z-tests with Bonferroni correction for contingency tables. <b>Results.</b> A response rate of 26.06% was achieved, with 469 participants. The majority (51.1%), particularly males (66.1%), perceived sustainability as promoting durability. The most common definition of sustainability (33.8%) was related to environmental protection, with significantly higher agreement among female students (39.4%) (<i>p</i> = 0.001). While 49.3% of participants identified single-use plastics in patient care as having the greatest environmental impact in dental practices, 39.2% of female students, primarily from clinical study years (50%), ranked patient paperwork and records as the most significant factor (<i>p</i> = 0.031). The highest-carbon-footprint dental procedures were considered to be amalgam and composite fillings (50.7%), with clinical year students indicating this as the most relevant issue (62.8% vs. 47.7%) (<i>p</i> = 0.011). Students aged 25-30 were more actively engaged in sustainability initiatives compared to the younger group (<i>p</i> = 0.005), while all students over 30 identified scaling and polishing as the most impactful procedure (<i>p</i> < 0.001). A majority of students supported future university sustainability initiatives (62.7%) and an elective course on sustainability in dentistry (65%). Female students showed significantly greater interest than male students in both initiatives (66.3% vs. 52.7%, <i>p</i> = 0.003 and 70.8% vs. 49.6%, <i>p</i> < 0.001, respectively). <b>Conclusions.</b> Greater awareness of sustainability was found in preclinical-year dental students and among female students, with knowledge gaps in clinical-year students, particularly regarding the environmental impact of dental practices and materials. Introducing sustainability courses could better prepare future dentists for sustainable practices in dentistry. Research collaborations and curriculum reforms to further promote sustainability would also be beneficial.</p>","PeriodicalId":11269,"journal":{"name":"Dentistry Journal","volume":"13 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11941699/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143709014","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":"Novel Roles of Nestin in Postnatal Root Formation.","authors":"Yan Jing, Jinqiu Wu, Ying Liu, Xiaohua Liu, Chi Ma","doi":"10.3390/dj13030113","DOIUrl":"10.3390/dj13030113","url":null,"abstract":"<p><p><b>Background/Objectives:</b> Nestin is an intermediate filament protein and a marker of odontoblasts, but its function in tooth and bone formation is largely unknown. This study aimed to determine whether Nestin plays a role in postnatal tooth formation. <b>Methods:</b> 4-week-old Nestin knockout (KO) mice were analyzed with a range of techniques, including X-ray imaging, uCT, backscattered and acid-etched casted SEM, FITC-confocal microscopy, H&E and TRAP staining, and immunohistochemistry. <b>Results:</b> The KO mice had no apparent difference in crown formation compared to age-matched wild-type (WT) but showed delayed molar eruption with reduced TRAP⁺ osteoclasts. More importantly, KO mice developed expanded predentin and shorter, thinner roots with irregular and shortened dentin tubules. Additionally, the Nestin KO mice exhibited a reduced cellular cementum mass with sharp reductions in DMP1, OPN, and BSP. <b>Conclusions:</b> These findings suggest that Nestin plays a critical role in the postnatal development of root dentin and cellular cementum.</p>","PeriodicalId":11269,"journal":{"name":"Dentistry Journal","volume":"13 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11941000/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143709106","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":"Impact of Marital Status, Education, and Family Size on Parental Behaviors Toward Early Childhood Caries in Romania.","authors":"Abel Emanuel Moca, Ioan Andrei Țig, Jessica Olivia Cherecheș, Rahela Tabita Moca, Raluca Iurcov","doi":"10.3390/dj13030111","DOIUrl":"10.3390/dj13030111","url":null,"abstract":"<p><p><b>Background and Objectives</b>: This study aimed to examine the influence of socio-demographic factors (marital status, number of children, and education level) on the knowledge, attitudes, and practices (KAP) concerning Early Childhood Caries (ECC) prevention among parents in Bihor, Romania. This research seeks to address the lack of regional data on the influence of socio-demographic factors, such as marital status, number of children, and education level, on parental knowledge, attitudes, and practices regarding ECC prevention. These insights are essential for developing targeted public health interventions in Romania. <b>Materials and Methods</b>: Conducted from March to September 2024, this cross-sectional study utilized a KAP questionnaire distributed online to parents of children under six. The survey was adapted to local contexts and included sections on demographic data and ECC-specific knowledge, attitudes, and practices. Statistical analyses, including Chi-square tests, were performed to evaluate the relationship between socio-demographic factors and KAP outcomes, ensuring robust data interpretation under ethical standards set by the Declaration of Helsinki. <b>Results</b>: Of the 798 respondents who accessed the questionnaire, 419 completed it, resulting in a completion rate of 52.5%. The participants had a mean age of 33.8 years. In terms of gender distribution, 348 (83.1%) were female and 71 (16.9%) were male. Higher educational levels were strongly correlated with better ECC knowledge and preventive practices; parents with university degrees demonstrated significantly better understanding and engagement in ECC prevention (<i>p</i> < 0.05). Married parents participated more actively in ECC prevention than unmarried ones, with 61.1% adhering to recommended practices compared to significantly lower rates among unmarried parents (<i>p</i> = 0.020). While this difference was statistically significant, the lower representation of unmarried parents in the sample should be considered when interpreting this finding. Families with fewer children showed more effective ECC preventive practices (<i>p</i> = 0.001). <b>Conclusions</b>: The study suggests that higher education and smaller family sizes are associated with better ECC prevention behaviors, emphasizing the need for targeted public health interventions. These could include parental education campaigns on ECC prevention, community-based oral health workshops, subsidized fluoride programs, and increased accessibility to pediatric dental services for underprivileged families.</p>","PeriodicalId":11269,"journal":{"name":"Dentistry Journal","volume":"13 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11941607/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143708989","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":"Color Change and Color Stability of White Spot Lesions Treated with Resin Infiltration, Microabrasion, or Nano-Hydroxyapatite Remineralization: An In Vitro Study.","authors":"Nina Novozhilova, Anastasia Mun, Maria Polyakova, Anna Mikheikina, Alexandr Zaytsev, Ksenia Babina","doi":"10.3390/dj13030112","DOIUrl":"10.3390/dj13030112","url":null,"abstract":"<p><p><b>Background</b>: We compared the camouflage effect of three white spot lesion (WSL) treatments (infiltration, nano-hydroxyapatite (nHAP) remineralization, and microabrasion) and color stability of the treated surfaces. <b>Methods</b>: Fifty sound extracted teeth were used in the study. WSLs were created on 40 buccal dento-enamel specimens through the use of acidic methylcellulose gel. These specimens were randomly assigned to treatment groups (<i>n</i> = 10 per group): negative controls, nano-hydroxyapatite (nHAP), resin infiltration, and microabrasion. After the treatment, all 50 specimens were immersed in coffee for 7 days. Color measurements were performed four times: at baseline (T0), after the demineralization procedure (T1), after the treatments (T2), and after immersion in coffee (T3). <b>Results</b>: No restoration of the initial enamel color was observed in any of the groups. The ICON and MA groups exhibited the highest masking effect, with the mean ΔE_T0-T2 = 7.46, although the differences among the study groups were insignificant. All three treatments increased the resistance of WSLs to discoloration in coffee compared to the negative control group; however, infiltration (∆E_T2-T3 = 4.13) and microabrasion (∆E_T2-T3 = 3.49) showed a better color stability tendency than nHAP remineralization (∆E_T2-T3 = 7.26). <b>Conclusions</b>: Despite its well-known remineralizing and desensitizing effects, nHAP showed the least masking effect for WSLs and lower color stability compared to resin infiltration and microabrasion. However, none of the methods allowed for complete restoration of the original color. After the discoloration procedure, the color changes in the white spots treated with microabrasion and infiltration were comparable to those of the sound enamel.</p>","PeriodicalId":11269,"journal":{"name":"Dentistry Journal","volume":"13 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11940927/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143709075","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":"Breaking Barriers in Orthodontics: An Experimental Study on How Stabilization Discs Improve Mini-Implant Outcomes.","authors":"Tinela Panaite, Cristian Liviu Romanec, Mihnea Iacob, Carina Balcos, Carmen Savin, Nicolae Daniel Olteanu, Raluca-Maria Vieriu, Chehab Alice, Irina Nicoleta Zetu","doi":"10.3390/dj13030109","DOIUrl":"10.3390/dj13030109","url":null,"abstract":"<p><p><b>Background/Objectives:</b> The stabilization disc (SD) for orthodontic mini-implants is a novel device designed to enhance anchorage stability and minimize the risk of mini-implant mobility. The disc features a flat structure with four prongs and is crafted from biocompatible materials such as titanium or stainless steel. It provides additional support to mini-implants by improving force distribution and reducing stress concentration around the insertion site. This study aims to evaluate the biomechanical performance of mini-implants with an SD compared to without-SD mini-implants, with a specific focus on their ability to maintain anchorage under orthodontic loading conditions. <b>Methods</b>: A finite element analysis (FEA) model was created for a commercially available mini-implant (2.0 mm in diameter and 12 mm in length). The mandible's anatomical structure was reconstructed in 3D from computed tomography (CT) scans using SpaceClaim software 2023.1. To simulate real-world orthodontic conditions, forces of 10 N were applied at an angle of 30°. This retrospective study explores the role of SDs in enhancing mini-implant stability by reducing displacement and optimizing stress distribution. The evaluation included analyzing von Mises stress, cortical bone deformation, and mini-implant movement under simulated orthodontic loading. <b>Results</b><i>:</i> The results demonstrate that the SD significantly reduces maximum total displacements by over 41% and redistributes von Mises stresses more evenly across the mini-implant and surrounding bone. Cortical bone stress and deformation were reduced in cases utilizing the SD, indicating enhanced implant stability and durability. <b>Conclusions</b>: The stabilization disc enhances mini-implant stability by improving stress distribution and reducing deformation without requiring permanent implant modifications. Its adaptability makes it a valuable solution for managing variable bone density and high orthodontic forces, offering a promising advancement in orthodontic anchorage.</p>","PeriodicalId":11269,"journal":{"name":"Dentistry Journal","volume":"13 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11941622/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143709073","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":"Antibiotic Prescription for the Prevention of Postoperative Complications After Third-Molar Extractions: A Systematic Review.","authors":"Nicola De Angelis, Lorenzo Denegri, Ioana Cristina Miron, Catherine Yumang, Paolo Pesce, Domenico Baldi, Francesca Delucchi, Francesco Bagnasco, Maria Menini","doi":"10.3390/dj13030107","DOIUrl":"10.3390/dj13030107","url":null,"abstract":"<p><strong>Background: </strong>Third-molar extractions are common procedures often complicated by infections and alveolitis. The use of antibiotics as prophylaxis to prevent these complications is debated due to potential risks and side effects. Therefore, the aim of the present systematic review was to determine the efficacy of antibiotic prescription for the prevention of these complications.</p><p><strong>Methods: </strong>A comprehensive literature search was conducted in MEDLINE/PubMed, Cochrane, and SCOPUS databases up until June 2024. The focused question was \"Does the antibiotic prescription influence the incidence of postoperative complications following third-molar extractions in healthy patients?\" Systematic reviews assessing complications after third-molar extractions were included.</p><p><strong>Results: </strong>A total of 16 studies were included, revealing that antibiotic use significantly reduces infection risk and dry socket incidence compared to no prescription. Amoxicillin-clavulanic acid was particularly effective.</p><p><strong>Conclusions: </strong>Antibiotics, especially amoxicillin-clavulanic acid, are effective in preventing postoperative infections and alveolitis after third-molar extraction. However, their administration should be carefully considered to balance benefits against potential risks. Evidence supports the judicious use of antibiotics in dental surgery to optimize patient outcomes, minimizing possible adverse effects and the risk of developing antibiotic resistance.</p>","PeriodicalId":11269,"journal":{"name":"Dentistry Journal","volume":"13 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11941164/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143709102","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":"Dissolution of Bovine Palatal Tissue with Degassed Sodium Hypochlorite.","authors":"Justin Fang, Zhen Shen, Ransome van der Hoeven, David E Jaramillo","doi":"10.3390/dj13030110","DOIUrl":"10.3390/dj13030110","url":null,"abstract":"<p><p><b>Objective:</b> To investigate the tissue dissolution efficacy of different concentrations of sodium hypochlorite (NaOCl) using the GentleWave^® technology (GW) and compare it with that of passive ultrasonic irrigation. This study will provide a novel in vitro model used to evaluate the tissue dissolution efficacy of different concentrations of NaOCl using the GentleWave^® procedure. <b>Materials and Methods:</b> Palatal bovine tissue was standardized by weight at 70-75 mg (average of 74.4 mg). The samples were divided into three groups of <i>n</i> = 10, Group 1: GW + 0.5% NaOCl, Group 2: GW + 3% NaOCl, and Group 3: ultrasonic group (US) + 6% NaOCl, and a control group of <i>n</i> = 2 with GW + H₂O. A specialized CleanFlow instrument was manufactured for the GW groups. For the US group, an apparatus was developed to allow the tissue to be in close contact with a freely operating ultrasonic tip. Each group was operated with its specific irrigants and dissolution times were obtained unless the samples were not visually dissolved within 5 min, and the dissolution rates were calculated. Dissolution times and rates were analyzed using univariate analysis of variance followed by a <i>t</i>-test. <b>Results:</b> The GW groups with 0.5% and 3% NaOCl dissolved entire tissue samples within 5 min and had average dissolution times of 227.5 s (Group 1) and 81.5 s (Group 2). GW with water had a higher tissue dissolution rate than ultrasonics with 6% NaOCl. <b>Conclusions:</b> The GentleWave^® using a lower concentration of NaOCl showed a similar clinical efficacy of dissolving tissues but displayed a significantly faster rate when compared with passive ultrasonic agitation.</p>","PeriodicalId":11269,"journal":{"name":"Dentistry Journal","volume":"13 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11941429/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143708211","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 Effect of MRI Exposure on the Shear Bond Strength and Adhesive Remnant Index of Different Bracket Types.","authors":"Luka Šimunović, Jakov Stojanović, Katarina Tečić, Dijana Zadravec, Senka Meštrović","doi":"10.3390/dj13030108","DOIUrl":"10.3390/dj13030108","url":null,"abstract":"<p><p><b>Background/Objectives</b>: Magnetic resonance imaging (MRI) is widely used in diagnostics, but its effects on orthodontic materials remain a concern. This study aimed to evaluate the impact of MRI exposure at 1.5 T and 3 T on the shear bond strength (SBS) and adhesive remnant index (ARI) of different orthodontic bracket types (metal, self-ligating, and ceramic). <b>Methods</b>: A total of 90 extracted human premolars were divided into three groups (control, 1.5 T, and 3 T MRI exposure). The three bracket types were bonded using Transbond XT adhesive and subjected to standardized polymerization. MRI scans were conducted using 1.5 T and 3 T machines with clinically relevant sequences. SBS was measured using a universal testing machine, and the ARI was assessed under a stereomicroscope. Statistical analysis was performed using Kruskal-Wallis and chi-square tests. <b>Results</b>: MRI exposure influenced SBS and the ARI differently across bracket types. Firstly, 3 T MRI exposure significantly reduced SBS in self-ligating (<i>p</i> = 0.017) and ceramic brackets (<i>p</i> = 0.014) compared to the control, whereas metal brackets showed no significant changes. ARI scores varied across MRI conditions, with metal and self-ligating brackets showing increased adhesive retention at higher field strengths. No significant differences were observed in ARI scores for ceramic brackets across MRI conditions. <b>Conclusions</b>: The clinical importance of understanding these results is that both patients and clinicians must be aware of inevitable changes that occur in SBS during MRI, since exposure to high-field MRI, particularly 3 T, may alter bond strength and adhesive failure characteristics.</p>","PeriodicalId":11269,"journal":{"name":"Dentistry Journal","volume":"13 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11941266/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143709133","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}