European Journal of Dentistry最新文献

{"title":"Color Stability of Microhybrid Composite Resins Depending on the Immersion Medium.","authors":"Sabra Jaâfoura, Amira Kikly, Meriem Fejjeri, Sarra Nasri, Mariem Brini, Dorra Kammoun","doi":"10.1055/s-0044-1791762","DOIUrl":"10.1055/s-0044-1791762","url":null,"abstract":"<p><strong>Objective: </strong> The aim of this study was to assess the color stability of two microhybrid composite resins after immersion in different coloring solutions for 4 weeks.</p><p><strong>Materials and methods: </strong> Sixty disc-shaped samples (2 mm in thickness and 10 mm in diameter) were prepared according to ISO standard 4049. Two composite resins were used: Filtek Z350 XT (3M ESPE) and Harvard Restore (Harvard Dental International GmbH). After initial color measurements, five samples of each resin were immersed in artificial saliva, Turkish coffee, lemonade, black tea, Coca-Cola 0%, and green tea for 4 weeks. The spectrophotometric measurements were carried out after 24 hours of immersion in the various solutions and then weekly, using a VITA Easyshade Advance 4.0 spectrophotometer (CIE L*a*b* system). Statistical analysis was carried out with SPSS 25.0 software.</p><p><strong>Results: </strong> The two composite resins tested revealed discoloration after immersion in all the drinks at a variable immersion period showing different color behaviors. The one-way analysis of variance showed a significant difference in the values of brightness (L), in chromaticity from green to red (a), in chromaticity from blue to yellow (b), and in the color (ΔE) of the two materials at different time intervals. The greatest color change in all the groups was caused by coffee followed by lemonade and black tea followed by green tea, Coca-Cola 0%, and artificial saliva.</p><p><strong>Clinical significance: </strong> The importance of color stability of dental restorations is crucial for dental professionals and patients. Indeed, the quality of a restoration is considered from both a functional and esthetic points of view. The information obtained from this study should prove useful for clinicians to make informed decisions in selecting the best materials for their patients' esthetic restorations.</p><p><strong>Conclusion: </strong> The Harvard Restore showed a better colorimetric behavior compared with the Filtek Z350. Coffee, black tea, and green tea had the most marked effects on the discoloration of composites, especially on Filtek Z350. Coca-Cola 0% showed a similar behavior to artificial saliva.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":"500-512"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12020586/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142686348","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":"Calcium Silicate-Based Sealers: Apatite Deposition on Root Canal Dentin and pH Variation Analysis.","authors":"Ike Dwi Maharti, Romilda Rosseti, Dini Asrianti, Nendar Herdianto, Winda Rianti","doi":"10.1055/s-0044-1788685","DOIUrl":"10.1055/s-0044-1788685","url":null,"abstract":"<p><strong>Objective: </strong> This study analyzes the biomineralization potential of calcium silicate-based sealers Ceraseal (Meta Biomed Co., Cheongju, Korea) and AH Plus Bioceramic (Dentsply Sirona, United States), focusing on evaluating apatite deposition in root canal dentin and pH increases.</p><p><strong>Materials and methods: </strong> Calcium silicate-based sealers Ceraseal (Meta Biomed Co.) and AH Plus Bioceramic (Dentsply Sirona) were applied to the root canal dentin of premolars that had undergone root canal preparation procedures. This was followed by a 14-day immersion in phosphate-buffered saline (PBS). Biomineralization analysis was performed by analyzing the formation of the apatite layer after the 14-day immersion. The thickness of the apatite layer deposits was observed using a scanning electron microscope (SEM). Additionally, the sealers were placed in molds and submerged in PBS solution with pH measurements taken on days 0, 7, and 14 using a digital pH meter.</p><p><strong>Statistical analysis: </strong> The average thickness of apatite deposition in the interfacial layer was analyzed using the Mann-Whitney's test. The pH value differences among the groups were analyzed using a one-way analysis of variance test, followed by a post hoc least significant difference.</p><p><strong>Results: </strong> There were differences in the apatite deposition in the interfacial layer between Ceraseal and AH Plus Bioceramic within 14 days of observation. There was a significant difference (<i>p</i> < 0.05) between the pH values of Ceraseal and AH Plus Bioceramic at 7 and 14 days of observation. Ceraseal showed greater alkalizing activity compared with AH Plus Bioceramic.</p><p><strong>Conclusion: </strong> Calcium silicate-based sealer Ceraseal showed better biomineralization potential than AH Plus Bioceramic.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":"374-381"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12020572/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282541","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 Additive Manufacturing Techniques for Cobalt-Chromium Alloys on Opposing Enamel Wear.","authors":"Pattrapond Eopsirisuk, Wacharasak Tumrasvin","doi":"10.1055/s-0045-1804887","DOIUrl":"https://doi.org/10.1055/s-0045-1804887","url":null,"abstract":"<p><strong>Objectives: </strong> This study aimed to examine the wear on opposing enamel caused by additive manufacturing techniques for cobalt-chromium (Co-Cr) alloys. Selective laser melting (SLM) techniques were compared with conventional methods. Cast nickel-chromium (Ni-Cr) alloys were also included for comparison.</p><p><strong>Materials and methods: </strong> Four groups of dental alloys were examined (<i>n</i> = 10/group): as-built SLM Co-Cr (CS), heat-treated SLM Co-Cr (CS-H), cast Co-Cr (CC), and cast Ni-Cr (NC) alloys. Surface roughness and hardness of these alloys were initially assessed. Wear test was conducted against human enamel cusps using a chewing simulator (49-N load, 1.6-Hz frequency). Volumetric and vertical enamel wear were measured at 60,000, 120,000, and 240,000 chewing cycles using an intraoral scanner combined with open-source 3D software.</p><p><strong>Statistical analysis: </strong> Enamel wear was analyzed using a generalized estimating equation (α = 0.05).</p><p><strong>Results: </strong> Alloy hardness varied among the groups. NC exhibited the lowest hardness, followed by CS, CC, and CS-H. Throughout the entire test, no significant differences in enamel wear were observed among CS, CS-H, and CC. However, NC caused lower enamel wear than the other groups, with a more pronounced difference observed after 120,000 chewing cycles.</p><p><strong>Conclusion: </strong> SLM is a promising alternative for manufacturing Co-Cr alloys used in fixed dental prostheses, as it exhibited comparable enamel wear to conventional casting. Moreover, optimized heat treatment enhanced the hardness of SLM-fabricated alloys without increasing enamel wear. However, it is noteworthy that Co-Cr alloys fabricated by any techniques resulted in higher enamel wear than Ni-Cr alloys.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143997867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rare Mandibular Surgical Ciliated Cysts: First Case Reported in a Brazilian.","authors":"Gabriela Lopes-Santos, Hugo Nary Filho, Denise Tostes Oliveira","doi":"10.1055/s-0044-1795077","DOIUrl":"10.1055/s-0044-1795077","url":null,"abstract":"<p><p>This reported case represents the first well-documented mandibular surgical ciliated cyst, following orthognathic surgery consisting of a combination of Le Fort I bimaxillary and sagittal osteotomy concomitantly with genioplasty, reported in a Brazilian patient. A case of 43-year-old female presenting a mandibular surgical ciliated cyst after 16 years of an orthognathic surgery, consisting of a combination of Le Fort I osteotomy and genioplasty, is reported. The cystic lesion was enucleated, and the histopathological analysis showed a cystic cavity lined by pseudostratified columnar respiratory-type epithelium presenting ciliated and mucous cells supported by fibrous connective tissue without inflammation. The diagnosis established was a mandibular surgical cilited cyst. Then, for diagnosis of mandibular surgical ciliated cyst is essential the association of clinical/imagological and histopathological features with the patient' past history showing evidence of previous surgery in the mandible concomitant with the maxilla.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":"540-543"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12020611/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142921350","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 Precision of All-on-Four Implant Position Recorded from Three Different CBCT Machines.","authors":"Osamah Alsulimani, Abdulrahman Alhaddad, Mosa Altassan, Asmaa Bukhari, Lulu Munshi, Ghalia Sabir","doi":"10.1055/s-0044-1788613","DOIUrl":"10.1055/s-0044-1788613","url":null,"abstract":"<p><strong>Objective: </strong> To investigate the dimensional discrepancy and degree of deviation of All-on-Four implant position between different cone-beam computed tomography (CBCT) machines.</p><p><strong>Materials and methods: </strong> Four implants (4.5 × 10 mm Superline II, Dentium, South Korea) were placed in an All-on-Four style in an artificial mandible. The jaw was radiated 30 times using three different CBCT machines (Rainbow CT, Dentium; Veraview X800, Morita, Japan; Planmeca Viso G3, Planmeca OY, Finland). A total of 30 Digital Imaging and Communications in Medicine (DICOM) files were exported, <i>n</i> = 10. All-on-Four implants from each DICOM file were segmented and exported as an STL file (three-dimensional image) using Blue Sky Plan software (version 4.12.13/Blue Sky Bio, United States). All-on-Four implant zone dimensions (<i>X</i>, <i>Y</i>, and <i>Z</i> axes) and the total degree of deviation between All-on-Four implants per CBCT machine were measured using Autodesk Meshmixer software (version 3.5.474/California, United States). The data distribution's normality and variances' equality were tested with Shapiro-Wilk's and Levene's tests, respectively (<i>p</i>-value < 0.05). Data were analyzed using Brown-Forsythe one-way analysis of variance and Tamhane's post hoc tests to compare the differences between the groups (<i>p</i>-value <0.05).</p><p><strong>Results: </strong> The respective <i>X</i>, <i>Y</i>, and <i>Z</i> mean dimensions of the All-on-Four implant zone were: Dentium (34.95, 14.71, and 9.97); Morita (34.88, 14.74, and 10.56); and Planmeca (34.73, 15.15, and 12.33). Significant differences between CBCT machines were found in all axes (<i>p</i>-value < 0.05); however, the <i>Z</i>-axis had the most differences. Notably, Planmeca exhibited the highest standard deviation (SD) in all axes (0.16-0.35), exhibiting the lowest consistency in the CBCT machines' readings. The Dentium exhibited the lowest deviation in the implant position, with the lowest SD (0.61). A significant difference in the total degree of deviation was spotted when only Morita was included in the comparison (<i>p</i>-value < 0.05).</p><p><strong>Conclusion: </strong> This study's findings are of significant importance as they reveal that the implant position recorded from the CBCT machines was most discrepant in the buccolingual dimension (<i>Z</i>-axis). Planmeca exhibited the least implant-dimensional accuracy of the CBCT machines, while Dentium exhibited the highest implant position accuracy. These results could significantly impact the choice of CBCT machine for implant placement, especially since an accurate CBCT image is crucial for digital implant planning.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":"337-345"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12020579/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141751429","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 Role of 3D Printing in Endodontic Treatment Planning: A Comprehensive Review.","authors":"Mustafa Hussein Alattas","doi":"10.1055/s-0044-1791242","DOIUrl":"10.1055/s-0044-1791242","url":null,"abstract":"<p><p>This review aims to provide an overall picture of the three-dimensional (3D) printing contributions to endodontic practice in treatment planning and execution. The methodology entails a comprehensive literature review of the technological processes and 3D printing applications in the field. Some key findings show that 3D printing is highly effective in producing the right dental models for training, helps in complex surgeries, and supports the transition toward personalized therapies. The review reveals that 3D printing has many benefits but that the broader adoption of this technology faces issues, including high technical requirements, high costs, and the need for safety standards. The study concludes that although in the future some challenges need to be addressed, the potential of 3D printing in endodontics is enormous and this means that the treatment methods of dentistry could be more efficient and innovative.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":"298-304"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12020613/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142603753","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":"Antimicrobial and Antibiofilm Properties of Hydroxyapatite/Nano-Hydroxyapatite in Preventing Dental Caries: A Systematic Review.","authors":"Nurdiana Dewi, Meirina Gartika, Dwi Gustiono, Dikdik Kurnia, Arief Cahyanto","doi":"10.1055/s-0045-1802568","DOIUrl":"https://doi.org/10.1055/s-0045-1802568","url":null,"abstract":"<p><p>Controlling biofilm is a crucial strategy and an essential component of preventing dental caries. Considerable research has been conducted in recent years on the clinical application of hydroxyapatite (HAp) and hydroxyapatite nanoparticles (nHAp) in preventing dental caries. However, these studies have yet to investigate the effectiveness or mechanism of these substances as antibacterial and antibiofilm agents. This study aimed to provide a thorough analysis of the current evidence on the antibacterial and antibiofilm characteristics of HAp/nHAp in the prevention of dental caries. Searches were conducted across five databases: Cochrane Library, PubMed, Scopus, EBSCOhost, and ScienceDirect. Google Scholar was also searched. Titles, abstracts, and full text were evaluated following the guidelines set by the Preferred Reporting Item for Systematic Review and Meta-Analyses (PRISMA). A methodological quality assessment of the studies was conducted using the QUIN tool. The initial retrieval totaled 15,047 studies, from which 3,487 were excluded. A total of 11,560 studies were screened based on the title and abstract, resulting in 24 full-text studies considered potentially eligible for inclusion (<i>κ</i> = 0.9599). Finally, 19 studies met all the defined inclusion criteria and were included in this comprehensive systematic review (<i>κ</i> = 0.8837). HAp/nHAp demonstrates antimicrobial activities against gram-negative and gram-positive bacteria and fungi. However, nHAp's antibiofilm efficacy remains limited. Further investigation is required to improve the efficacy of antibacterial and antibiofilm agents.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143976408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Arch Length Discrepancy Analysis Comparison with the Huckaba and Moyers Method in Angle Class I Malocclusion in Surabayan Children with Mixed Dentition during the Growth and Development Phase: A Retrospective Cross-Sectional Study in Universitas Airlangga Dental Hospital.","authors":"Alexander Patera Nugraha, Delfia Amanda Putri, Andree Salim, Ida Bagus Narmada, Ari Triwardhani, I Gusti Aju Wahju Ardani, Alida Alida, Adya Pramusita, Tengku Natasha Eleena Binti Tengku Ahmad Noor","doi":"10.1055/s-0045-1807732","DOIUrl":"https://doi.org/10.1055/s-0045-1807732","url":null,"abstract":"<p><p>The aim of the study was to compare the ALD results obtained using the Huckaba and Moyers methods, including the segmentation and brass wire techniques, in class I Angle malocclusion in Surabayan children during the MD and GDP at Dental Hospital Universitas Airlangga.This study adopted a retrospective cross-sectional design, involving a total of 252 samples. However, only 32 samples that met the inclusion criteria were analyzed for ALD by using the Huckaba and Moyers methods. Sex, chronological age, and malocclusion angle classification were recorded. Cervical maturation vertebrae stage was conducted to determine the skeletal age, while dental age was investigated through the Demirjian method in the GDP during MD in Javanese children. Lateral cephalogram was examined to determine skeletal malocclusion based on the Steiner analysis (Sella-Nasion-A [<SNA], Sella, Nasion, B [<SNB], [SNA-SNB] <ANB).The Shapiro-Wilk and Levene tests revealed nonnormal distribution and lack of homogeneity, leading to the use of nonparametric Kruskal-Wallis and Mann-Whitney U tests for identifying significant differences.In the upper and jaw, the Moyers method demonstrated a positive ALD value, whereas the Huckaba method exhibited a negative ALD value, indicating a significant difference between the groups.Discrepancy analysis revealed significant differences between the Huckaba and Moyers methods for class I Angle malocclusion in Surabayan children during MD and GDP at Dental Hospital Universitas Airlangga.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143986048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the Efficacy of Resveratrol-Containing Mouthwash as an Adjunct Treatment for Periodontitis: A Randomized Clinical Trial.","authors":"Sura A Mohammed, Hadeel Mazin Akram","doi":"10.1055/s-0044-1788686","DOIUrl":"10.1055/s-0044-1788686","url":null,"abstract":"<p><strong>Objectives: </strong> To evaluate the effectiveness of resveratrol mouthwash as an adjunct to nonsurgical periodontal treatment of periodontitis.</p><p><strong>Materials and methods: </strong> This study was a randomized, double-blind clinical trial study. The study included 57 participants with periodontitis. Clinical parameters (plaque index [PI], bleeding on probing [BOP], probing pocket depth [PPD], and clinical attachment loss [CAL]) were examined at the baseline visit, after 7 days, and after 30 days of using resveratrol mouthwash as an adjunct to nonsurgical periodontal treatment. The salivary levels of (interleukin [IL]-6) and RANKL (receptor activator of nuclear factor-kappa B ligand) were measured and compared before and after treatment. The participants answered the visual analog scale-based assessment questionnaire at the last visit.</p><p><strong>Statistical analysis: </strong> A one-way ANOVA (analysis of variance) test was used to compare the means of multiple groups (test, positive control, negative control) at baseline and after treatment. A paired <i>t</i>-test was also used to compare the means of a single group before and after treatment. In addition, Tukey's multiple comparisons test was used to identify specific pairwise differences between the three groups after finding significant differences with ANOVA. The Chi-square test was also used to compare the distribution of categorical variables like sex between the groups.</p><p><strong>Results: </strong> All interventions significantly reduced PI, BOP, PPD, and CAL, but resveratrol and chlorhexidine had a higher significant effect than placebo except for CAL without a significant difference between them. All mouthwashes significantly reduced the salivary concentration of IL-6. However, resveratrol and chlorhexidine had a significantly higher effect than placebo, while the concentration of RANKL was decreased in all groups without a significant difference between them. The participants' responses to the mouthwash questionnaire showed that resveratrol and chlorhexidine had the same feedback without significant differences.</p><p><strong>Conclusion: </strong> Resveratrol-containing mouthwash could be used as an alternative to chlorhexidine as an adjunct to nonsurgical periodontal treatment of periodontitis.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":"354-365"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12020602/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282543","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":"Debonding Characteristic and Survival Probability of Adhesive Flash-Free Ceramic Orthodontic Brackets Following pH Cycling.","authors":"Tarek Ahmed Soliman, Ali Robaian, Nasser Raqe Alqhtani, Abdullah Alshehri, Abdullah Saad Alqahtahni, Ibrahim Saleh Aljulayfi, Magdy Alazzazi, Ali Elkaffas, Shahad Saleh AlGhannam, Sayed Ghorab","doi":"10.1055/s-0044-1795125","DOIUrl":"10.1055/s-0044-1795125","url":null,"abstract":"<p><strong>Objectives: </strong> Orthodontic bracket bond failure is an obstacle in clinical orthodontics. This study investigated the influence of pH cycling on the shear bond strength (SBS), adhesive remnant index (ARI), and survival probability of adhesive-precoated flash-free ceramic brackets.</p><p><strong>Materials and methods: </strong> Forty mandibular premolars were randomly divided into two groups (<i>n</i> = 20): C: noncoated orthodontic brackets, and F: flash-free adhesive-precoated orthodontic brackets. Each group was subdivided into two subgroups according to storage medium solutions (<i>n</i> = 10): in subgroup AS, specimens were immersed in artificial saliva for 24 hours, and in Subgroup ASL, specimens were recycled between a demineralizing solution and an artificial saliva for 42 days. Within each subgroup, specimens were subjected to SBS and ARI testing. SBS data were analyzed using one-way ANOVA (analysis of variance) and Tukey's post-hoc test. Weibull analysis was performed on the SBS data to determine the characteristic SBS and their survival probabilities.</p><p><strong>Results: </strong> Flash-free adhesive-precoated brackets had higher significant (<i>p</i> < 0.001) SBS values in both the AS group (17.74 ± 1.74 MPa) and the ASL group (12.61 ± 1.40 MPa) compared with the noncoated bracket (10.67 ± 1.55 and 7.89 ± 1.39 MPa, respectively). The ARI scores for the noncoated brackets in the AS group were 70% occurrence for score 1, while 90% for score 1 in the ASL group. For the flash-free precoated brackets, ARI scores were 70% occurrence for score 2 in the AS group, while 80% for score 2 in the ASL group. Flash-free brackets had higher SBS in both AS and ASL groups (14.07 and 9.76 MPa, respectively), at 95% survival probability.</p><p><strong>Conclusion: </strong> Flash-free orthodontic brackets performed better in terms of significantly higher bond strength and higher ARI scores. Meanwhile, noncoated brackets revealed acceptable SBS results in both storage medium groups. Flash-free brackets showed higher survival than the noncoated brackets in both storage medium groups at 90% survival probability.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":"449-456"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12020615/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142921290","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}