European Journal of Dentistry最新文献

{"title":"Temperature Changes of NaOCl after Irrigation Using Passive Ultrasonic Irrigation, Easy Clean, and XP-Endo Finisher: A Randomized Crossover Clinical Trial.","authors":"Geraldo Edson Freitas Athayde de Moraes, Daniel Guimarães Pedro Rocha, Carlos Eduardo Fontana, Rina Andréa Pelegrine, Alexandre Sigrist de Martin, Índia Olinta De Azevedo Queiroz, Carlos Eduardo da Silveira Bueno","doi":"10.1055/s-0044-1791685","DOIUrl":"https://doi.org/10.1055/s-0044-1791685","url":null,"abstract":"<p><p>The aim of this study was to evaluate the temperature changes of sodium hypochlorite (NaOCl) after the use of different activation techniques: passive ultrasonic irrigation (PUI), XP-Endo Finisher (XP), and Easy Clean (EC).Thirty patients were selected for this randomized crossover study and each patient received root canal treatment in maxillary incisor. Each tooth was subjected to three activation techniques in a random order in the final irrigation of the treatment. All irrigation was performed using a 2.5% NaOCl solution, with the solution's temperature stabilized at 21°C (baseline) in the syringe. No agitation was used as a control before the use of the devices. After each activation technique, the intracanal temperature was measured using a K-type thermocouple. Statistical analyses were performed using Kruskal-Wallis and Dunn tests.Temperatures remain in the range of 21.0 to 21.2°C at baseline and were higher in the control (29.5-34.1°C), PUI (29.9-34.2°C), EC (29.8-35.6°C), and XP (29.9-34.7°C) groups. The temperature average of the baseline period was inferior to those observed in all groups; moreover, despite of temperature changes among the control and all experimental groups no difference between them were identified.The temperature increase caused by activation with PUI, EC, and XP was similar and did not exceed the levels observed when no agitation was performed.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143614217","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":"Association between Dental Variables and Hashimoto's Disease: A Retrospective Cohort Study.","authors":"Romana Peršić Bukmir, Ema Paljević, Jelena Vidas Hrstić, Elvis Božac, Katarzyna Mocny-Pachonska, Ivana Brekalo Pršo","doi":"10.1055/s-0044-1800825","DOIUrl":"https://doi.org/10.1055/s-0044-1800825","url":null,"abstract":"<p><strong>Objectives: </strong> The present study aimed to compare dental, endodontic, and periodontal status in patients with Hashimoto's disease and healthy patients, as well as to disclose the relation between dental variables and Hashimoto's disease.</p><p><strong>Materials and methods: </strong> The research included 85 patients affected by Hashimoto's thyroiditis (analyzed group) and 85 healthy patients (control group). The two groups were matched according to age and gender. Data regarding patients' health status was acquired from their medical records. Data regarding dental, endodontic, and periodontal status were acquired from patients' dental records and digital panoramic radiographs.</p><p><strong>Statistical analysis: </strong> Since a nonnormal distribution of data was detected, a median and interquartile range were used as a measure of central tendency and dispersion. Mann-Whitney <i>U</i> test and chi-squared test were used to test the differences between the groups. Multiple linear regression analysis and logistic regression analysis were used to test the association of the data.</p><p><strong>Results: </strong> Healthy participants had significantly higher median number of teeth with secondary caries (median 2; interquartile range 1-3) when compared with participants with Hashimoto's disease (median 1; interquartile range 0-2; <i>p</i> < 0.001). Periodontal disease was present in significantly more participants with Hashimoto's disease than healthy patients (68.2% vs. 45.9%; chi-square = 7.779; <i>p</i> = 0.005). The presence of Hashimoto's disease increased the risk of periodontal disease presence three times (odds ratio [OR] = 3.14; 95% confidence interval [CI] 1.38-7.15; <i>p</i> = 0.007). The presence of periodontal disease increased the risk of Hashimoto's disease presence by 2.5 times (OR 2.54; 95% CI: 1.36-4.73; <i>p</i> = 0.004).</p><p><strong>Conclusion: </strong> With the study limitations in mind, it may be concluded that a positive relationship between periodontal disease and Hashimoto's thyroiditis exists.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143614090","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":"Foundations of Interprofessional Education in Dental Schools: A Narrative Review.","authors":"Ahmed Yaseen Alqutaibi, Mohamed M Rahhal, Rawda Awad, Omer Sheriff Sultan, Mohamed A M Iesa, Muhammad Sohail Zafar, Mohamed Jaber","doi":"10.1055/s-0045-1804504","DOIUrl":"https://doi.org/10.1055/s-0045-1804504","url":null,"abstract":"<p><p>Interprofessional education (IPE) and interprofessional collaborative practice have gained significant recognition for their ability to enhance health care education and improve patient outcomes, particularly in dentistry. Given the close connection between oral and general health, incorporating IPE into dental curricula has become essential in preparing practitioners for collaborative patient-centered care. This review focuses on the foundations of IPE in dental schools, focusing on its role in preparing students for collaborative health care. It discusses the evolution and current trends of IPE, examples of existing programs, and the importance of interprofessional teamwork for dental students. Key interprofessional competencies, such as communication, ethics, and teamwork, are highlighted, along with methods for assessing these skills, emphasizing the value of IPE in developing well-rounded dental professionals.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143614208","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":"Histological Assessment of the Anti-Inflammatory Effectiveness of Peperomia pellucida Extract Administered to the Gingival Sulcus in Rats Induced with Periodontitis.","authors":"Dewi Lidya Ichwana Nasution, Sri Tjahajawati, Ratna Indriyanti, Amaliya Amaliya, Widya Irsyad, Indah Puti Sabirin","doi":"10.1055/s-0045-1802950","DOIUrl":"https://doi.org/10.1055/s-0045-1802950","url":null,"abstract":"<p><p>This study aims to assess the impact of <i>Peperomia pellucida</i> extract on periodontitis in rats, using the Papillary Bleeding Index (PBI), gingival index (GI), and histological evaluation of key inflammatory cells such as osteoclasts, osteoblasts, polymorphonuclear neutrophils (PMNs), macrophages, and fibroblasts to explore its potential in reducing inflammation and preserving periodontal tissue.The extract was prepared using the reflux method with 96% ethanol as a solvent, followed by phytochemical screening and antibacterial testing via the disk diffusion method. This <i>in vivo</i> study utilized a posttest control group experiment with 24 Wistar rats, divided into four groups: nonperiodontitis, no-treatment, chlorhexidine-treated (CHX), and extract-treated groups, with the latter three groups induced with periodontitis. Induction was performed using a 0.3-mm ligature wire and plaque from periodontitis patients, along with nicotine administration (0.001 mg/L) for 7 days. The extract group received a topical application of 2.5 µL of <i>P. pellucida</i> leaf extract, while the CHX group was administered 0.05 mL of CHX daily for 1 week. Observations of GI and PBI were made on days 0, 3, 5, and 7. Histological changes were assessed on day 7 by evaluating the cell counts of osteoclasts, osteoblasts, fibroblasts, macrophages, and PMNs.Data were analyzed using one-way analysis of variance and Kruskal-Wallis with Mann-Whitney post hoc tests for pairwise comparisons.Phytochemical analysis confirmed the presence of alkaloids, polyphenols, tannins, flavonoids, quinones, monoterpenoids, and sesquiterpenoids in <i>P. pellucida</i> extract. The extract demonstrated antibacterial activity against <i>Porphyromonas gingivalis</i>, a key pathogen in periodontitis. Clinical and histological assessments showed significant improvements in the extract-treated group, with outcomes comparable to the CHX-treated group after 7 days.Based on these findings, <i>P. pellucida</i> (L.) Kunth extract contains phytochemicals and exhibits antibacterial and anti-inflammatory properties, as demonstrated by clinical and histological parameters in rats induced with periodontitis.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143614209","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":"In vitro Evaluation of Cytotoxicity, Biocompatibility, and Osteogenic Effect of Two Calcium Silicate Sealers Compared with AH Plus Jet.","authors":"Monique Aparecida de Lima Rios Pitzschk, Carlos Eduardo da Silveira Bueno, Carlos Eduardo Fontana, Alexandre Sigrist De Martin, Daniel Guimarães Pedro Rocha, Carolina Pessoa Stringheta, Ana Grasiela da Silva Limoeiro, Virgilio Marcio Bastos Braga, Caroliny Chavier Guimaraes, Marilia Fagury Videira Marceliano-Alves, Wayne Martins Nascimento, Thiago Sena Guimarães, Rina Andrea Pelegrine","doi":"10.1055/s-0044-1789602","DOIUrl":"https://doi.org/10.1055/s-0044-1789602","url":null,"abstract":"<p><strong>Objective: </strong> The purpose of the study was to investigate the cytotoxicity, biocompatibility, and osteogenic effect of EndoSequence BCSealer HiFlow (BCH) and Bio-C Sealer (BCS) in osteosarcoma cells SAOS-2 compared with AH Plus Jet.</p><p><strong>Materials and methods: </strong> For cytotoxicity analysis, the [3-(4,5-dimethyl-thiazole)-2,5-diphenyltetrazolium bromide-MTT; Sigma/Aldrich] method was used after 24, 48, and 72 hours. For cellular bioactivity, alkaline phosphatase enzyme (ALP) was evaluated after 7 and 14 days.</p><p><strong>Statistical analysis: </strong> MTT assay was assessed using analysis of variance (ANOVA) and Tukey's test and over time using ANOVA and Sidak's test. For ALP analysis, the one-way ANOVA and Student's paired t-tests were used.</p><p><strong>Results: </strong> BCS was like AH Plus Jet. After 72 hours, BCH and BCS did not differ from AH Plus Jet and showed similar behavior in terms of viability. ALP showed a difference only after 14 days. BCH had the lowest bioactivity value. AH Plus Jet and BCS were like each other.</p><p><strong>Conclusion: </strong> AHP was more viable for SAOS-2, and the biocompatibility of Calcium silicate-based sealers was acceptable. The present finding assessed the biocompatibility of Calcium silicate bioceramic sealers, such as BCS, EndoSequence BCH, and AH Plus Jet, is acceptable and they have osteogenic effect and bioactivity.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143614211","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":"Internalization and Colocalization of a Polyclonal Antibody Against Porphyromonas gingivalis FimA type I in Infected Cells.","authors":"Napaporn Apiratmateekul, Kusuma Jamdee, Chantarapim Pinnork, Nawarat Khumyat, Niratcha Chaisomboon, Jantipa Jobsri","doi":"10.1055/s-0044-1801302","DOIUrl":"https://doi.org/10.1055/s-0044-1801302","url":null,"abstract":"<p><strong>Objective: </strong> The aim of this work was to investigate the effect of a rabbit polyclonal antibody specific to <i>Porphyromonas gingivalis</i> FimA type I (FimI) protein internalized into <i>P. gingivalis</i> infected cells.</p><p><strong>Materials and methods: </strong> Rabbits were immunized with <i>P. gingivalis</i> FimI protein and the serum was collected for immunoglobulin (Ig) purification. For visualization of the antibody inside the cells, it was labeled with Cy3 dye. Live <i>P. gingivalis</i> was labeled with PKH67 dye. Rabbit anti-FimI Ig-Cy3 was internalized into H357 cells infected with <i>P. gingivalis</i>-PKH67 by electroporation or coincubation. Location of the Ig or <i>P. gingivalis</i> was observed under fluorescence microscope or confocal microscope. Percentage of <i>P. gingivalis</i>-PKH67 infected cells was analyzed by flow cytometry.</p><p><strong>Statistical analysis: </strong> Normality of data distribution was tested by Shapiro-Wilk test. The data failed normality test and were further analyzed by Kolmogorov-Smirnov test.</p><p><strong>Results: </strong> Rabbit anti-<i>P. gingivalis</i> FimI Ig-Cy3 and <i>P. gingivalis</i>-PKH67 were both located next to the nucleus. The rabbit anti-FimI Ig-Cy3 was able to enter H357 cells after the cells were cultured in the medium containing the labeled Ig for 16 hours. The location of the Ig was near the nucleus as found in cells electroporated with the Ig-Cy3. The percentage of <i>P. gingivalis</i>-PKH67 infected cells seemed to be decreased after the infected cells internalized anti-FimI Ig by electroporation. However, it was not statistically significance.</p><p><strong>Conclusion: </strong> Rabbit anti-<i>P. gingivalis</i> FimI Ig and <i>P. gingivalis</i> was colocalized near the nucleus. And the rabbit anti-FimI Ig was able to enter H357 cells by coincubation method.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143614212","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":"Impact of Silanized Nanographene Oxide Concentrations in Different Primers on Bonding Durability between Resin Cement and Zirconia.","authors":"Ahmed Q Mahmoud, Tarek Ahmed Soliman, Tarek A Elkhooly, Asmaa Harhash, El-Sayed Gad Eid","doi":"10.1055/s-0044-1795126","DOIUrl":"https://doi.org/10.1055/s-0044-1795126","url":null,"abstract":"<p><strong>Objectives: </strong> Zirconia (ZrO₂) has been used in dental restorations due to its increased mechanical properties, biocompatibility, low degree of bacterial adhesion, and acceptable optical properties. One of the major drawbacks of ZrO₂ is its short-term durable bond with resin cement. The objective of this study was to evaluate the effect of different primers embedded with silanized nanographene oxide (SGO) sheets on the wettability of ZrO₂ surface and bond strength durability between resin cement and ZrO₂.</p><p><strong>Materials and methods: </strong> Four hundred ZrO₂ specimens were divided into four main groups as each group had 100 specimens according to the type of the primer: rely X ceramic primer (Group I), monobond N primer (Group II), monobond plus primer (Group III), and Z prime plus primer (ZP, Group IV). Each main group was subdivided into five subgroups according to SGO concentrations by weight blended into primers: (1) 0% (control), (2) 0.1%, (3) 0.3%, (4) 0.6%, and (5) 0.9% as each subgroup had 20 specimens. Immediate shear bond strength (SBS) test was done for half of the specimens per each subgroup (10 specimens) by universal testing machine, the other half of the specimens per each subgroup (10 specimens) were exposed to thermocycling for 10,000 cycles that is equivalent to 1 year of clinical use at controlled temperatures (5-55°C) by thermocycler then SBS test by universal testing machine was done. Water contact angle test was done for all specimens per each subgroup (20 specimens) by computer software and an optical tensiometer.</p><p><strong>Results: </strong> The SBS was nonsignificantly decreased after thermocycling for all primers embedded with SGO except for ZP primer. The best wettability of ZrO₂ surface was found in (ZP) primer group embedded with (0.9% SGO) with a mean value of 20.60.</p><p><strong>Conclusion: </strong> Primers embedded with SGO could increase the wettability of the ZrO₂ surface and bond strength durability between resin cement and ZrO₂ even after thermocycling aging. The clinical significance of this study was the possible increase of the wettability of ZrO₂ surface and SBS of resin cement to ZrO₂ with promising long-term stability when commercial primers embedded with SGO were used. This could reduce the risk of debonding between resin cement and ZrO₂ crowns or veneers.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143596334","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":"A Comparative Evaluation of Different Irrigation Activation Techniques on Root Canal Cleanliness: A Scanning Electron Microscope Study.","authors":"Lubna Ahmad, Prashant Bhasin, Hemanshi Kumar, Vrinda Vats, Prateek Madan, Monika Tandan","doi":"10.1055/s-0044-1801306","DOIUrl":"https://doi.org/10.1055/s-0044-1801306","url":null,"abstract":"<p><strong>Objective: </strong> This article compares the effect of ultrasonic, sonic activation of intracanal heated 3% sodium hypochlorite and laser-activated 3% sodium hypochlorite (NaOCl) on root canal cleanliness using scanning electron microscope.</p><p><strong>Materials and methods: </strong> Eighty-eight permanent mandibular premolars were extracted and decoronated to obtain 14 mm of standardized root length. Working length was calculated and canals were prepared till size 25/0.04. Samples were randomly divided into four groups according to the method of irrigation employed (<i>n</i> = 22)-group A: passive ultrasonic irrigation (PUI) of 3% intracanal heated NaOCl, group B: sonic activation of 3% intracanal heated NaOCl, group C: activation of 3% NaOCl by diode laser, and group D: conventional needle irrigation (CNI). Samples were split into two halves and the presence of debris at these regions was graded under scanning electron microscope. The chi-square test was employed to assess significant differences in cleanliness scores and pairwise comparisons using the Dunn test were performed to identify specific group difference. A <i>p</i>-value of < 0.05 was kept as level of significance for all analysis.</p><p><strong>Results: </strong> Group A and group B showed maximum cleanliness in middle third as compared with apical third. Group C (laser) showed better cleanliness in apical third as compared with middle third. While group D (CNI) irrigation showed the lowest cleaning efficiency both in the middle third and apical third.</p><p><strong>Conclusion: </strong> It was concluded that PUI with intracanal heating of 3% NaOCl and diode laser activation of 3% NaOCl can be recommended as a potential irrigant activation strategy to effectively clean inaccessible areas of the root canal system.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143572576","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":"A Retrospective Study Using a Novel Body-Shift Implant Design with a Novel Alloplastic Particulate Grafting Material in Immediate Extraction Sockets.","authors":"Dominic B O'Hooley, Costa Nicolopoulos, Mark G Worthing, Petros Yuvanoglu, Fotis Melas, Peter J M Fairbairn, Gregori M Kurtzman","doi":"10.1055/s-0045-1801849","DOIUrl":"https://doi.org/10.1055/s-0045-1801849","url":null,"abstract":"<p><p>With resurgence in immediate tooth replacement therapy (ITRT) as a method of preserving both hard and soft tissues for improved aesthetic outcomes, this multicenter, prospective study looked at two novel products and their effect on those outcomes. Thirty-one maxillary single-tooth implants were included, of these 54.8% were central incisors, 25.8% lateral incisors, and 19.4% canines. Three complications were reported; one case nondraining fistula, one case a nonseated provisional restoration, and one case a fractured zirconia abutment. The definitive restorations were delivered between 4 hours and 18 months postimplant placement and all restorations were screw-retained. ITRT is frequently utilized when a tooth to be extracted will be replaced by an implant aiding in preservation of the hard and soft tissue that may be lost due to resorption during healing of the extraction socket. The narrower neck region of the Inverta implant results in thicker crestal bone around the implant, where loading under function occurs. Grafting that area around the implant at placement with EthOss results in more predictable bone stability in the long term.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143122485","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":"Effect of Grinding and Polishing Protocols on Surface Roughness, Flexural Strength, and Phase Transformation of High-Translucent 5 mol% Yttria-Partially Stabilized Zirconia.","authors":"Chatnarong Phatphutthitham, Boondarick Niyatiwatchanchai, Phakvalunch Rujiraprasert, Junji Tagami, Thanaphum Osathanon, Anucharte Srijunbarl, Thawanrat Singthong, Sarat Suriyasangpetch, Dusit Nantanapiboon","doi":"10.1055/s-0044-1787001","DOIUrl":"10.1055/s-0044-1787001","url":null,"abstract":"<p><strong>Objectives: </strong> This study evaluated surface roughness, biaxial flexural strength, and phase transformation of 5Y-PSZ after grinding and polishing with different protocols.</p><p><strong>Material and methods: </strong> Two commercial 5Y-PSZ, Lava Esthetic (L) and Cercon xt (C), were used and divided into 3 groups: LC and CC represented unpolished control groups; LE and CE were polished with protocol I (EVE DIASYNT® PLUS HP following with EVE DIACERA RA); and LJ and CJ were polished with protocol II (Superfine diamond bur following with Jota ZIR Gloss polishing kit). Surface roughness was evaluated after polishing step-by-step with a contact-type profilometer. After high-gross polishing, the specimens were subjected to biaxial flexural strength test, crystallographic microstructure analysis using an X-ray diffractometer (XRD), and surface micro-topography using scanning electron microscopy (SEM).</p><p><strong>Statistical analysis: </strong>Surface roughness differences after each step and biaxial flexural strength between groups were evaluated with one-way ANOVA, followed by Bonferroni post-hoc analysis. Changes in surface roughness across four different time points within groups were assessed using one-way repeated measures ANOVA, followed by Bonferroni post-hoc analysis.</p><p><strong>Results: </strong> After high-gross polishing, both polishing protocols showed significantly lower surface roughness than the grinding group (<i>p</i> < 0.05). The LE and CE groups exhibited the highest surface roughness values, which were significant differences from the LJ and CJ groups (<i>p</i> < 0.05). The LE group showed significantly lower biaxial flexural strength compared to the LC group (<i>p</i> < 0.05). However, there was no statistically significant difference in the CE and CJ groups compared to the control group (<i>p</i> > 0.05). Furthermore, all polishing protocols did not change the phase transformation of zirconia.</p><p><strong>Conclusion: </strong> Polishing protocol II provided a smoother surface than the protocol I after high-gross polishing, while the biaxial flexural strength of materials remained unaffected.</p>","PeriodicalId":12028,"journal":{"name":"European Journal of Dentistry","volume":" ","pages":"80-89"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11750342/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141467120","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}