Lucas Menezes Dos Anjos, Aurélio de Oliveira Rocha, Felipe Gomes Dallepiane, Fernanda Pretto Zatt, Filipe Colombo Vitali, Pablo Silveira Santos, Christiane Cabral Leite, Natalia de Oliveira Miranda, Ariadne Cristiane Cabral Cruz, Mariane Cardoso, Bruno Henriques
{"title":"Immediate dental implant placement: A bibliometric analysis of the 100 most cited articles.","authors":"Lucas Menezes Dos Anjos, Aurélio de Oliveira Rocha, Felipe Gomes Dallepiane, Fernanda Pretto Zatt, Filipe Colombo Vitali, Pablo Silveira Santos, Christiane Cabral Leite, Natalia de Oliveira Miranda, Ariadne Cristiane Cabral Cruz, Mariane Cardoso, Bruno Henriques","doi":"10.4317/jced.62274","DOIUrl":"10.4317/jced.62274","url":null,"abstract":"<p><strong>Background: </strong>This study aims to scrutinize the characteristics of the 100 most cited articles concerning the immediate placement of dental implants.</p><p><strong>Material and methods: </strong>Employing a specific search strategy comprising keywords and Boolean operators, we conducted a comprehensive search in the Web of Science database in January 2024. The identified articles were then arranged in descending order based on their citation counts. Two researchers meticulously gathered information on the number and density of citations, publication year and journal, study design, authorship and affiliations, keywords, as well as the country and continent of origin. Bibliometric maps were constructed using VOSviewer.</p><p><strong>Results: </strong>The citations for the selected articles ranged from 76 to 569, spanning the publication years 1994 to 2018. Clinical Oral Implants Research emerged as the most frequently referenced journal, accounting for 30% of the publications. Interventional studies constituted the majority (29%) of the articles. Buser D and Lang NP were the most prolific authors, each contributing 11% of the published articles. The University of Bern had a total representation of 10%. The United States garnered significant attention at 20%, while Europe emerged as the predominant continent, constituting 46% of the publications. VOSviewer maps illustrated a convergence of authorship.</p><p><strong>Conclusions: </strong>The 100 most cited articles on immediate implant placement predominantly originated from authors in the United States, emphasizing Clinical Oral Implants Research as a notable outlet featuring observational studies. <b>Key words:</b>Immediate implantation, Bibliometric analysis, Dental implants.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 5","pages":"e507-e514"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12142360/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248123","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}
Thalles Moreira Suassuna, Elenisa Glaucia Ferreira Dos Santos, Sérgio Murilo Cordeiro de Melo Filho, Maria Taywri Almeida Costa, José Rodrigues Laureano Filho, Fábio Andrey da Costa Araújo
{"title":"Unfavorable fractures during Sagittal Split Osteotomy. What are the Risk Factors? A Retrospective Tomographic Study.","authors":"Thalles Moreira Suassuna, Elenisa Glaucia Ferreira Dos Santos, Sérgio Murilo Cordeiro de Melo Filho, Maria Taywri Almeida Costa, José Rodrigues Laureano Filho, Fábio Andrey da Costa Araújo","doi":"10.4317/jced.62726","DOIUrl":"10.4317/jced.62726","url":null,"abstract":"<p><strong>Background: </strong>This study aims to analyze the epidemiology of \"Bad Split\" (BS) during Sagittal Osteotomy of the Mandible, identifying anatomical and technical risk factors associated with its occurrence.</p><p><strong>Material and methods: </strong>A retrospective analysis was conducted on 157 patients (314 osteotomies) over five years. Multi-slice helical CT scans, both pre- and post-operative, were examined to classify BS and identify potential risk factors. Anatomical variables included the presence of third molars, edentulism, prior fixation systems, mandibular ramus dimensions, lingula position, and alveolar crest height. Technical aspects of osteotomy execution were also assessed. Measurements were performed using Dolphin Imaging Software 11.95 after orienting the skull in the Natural Head Position.</p><p><strong>Results: </strong>The incidence of BS was 3.2% (10 patients), with a slight left-side predominance (60%). Class A BS (distal fracture of the proximal segment) was the most common (60%). Anatomically, 83.3% of Class A cases had a more anteriorly positioned lingula and 66% presented a lower alveolar crest. Technically, 80% of BS cases showed deviations in osteotomy execution, with incomplete osteotomy at the basal level being the most frequent (60%).</p><p><strong>Conclusions: </strong>This study suggests that technical factors, particularly osteotomy execution, play a more decisive role in BS occurrence than anatomical variables. Surgical precision is crucial, emphasizing careful osteotomy techniques to minimize the risk of BS, especially in anatomically predisposed mandibles. <b>Key words:</b>Bad split, Intraoperative complications, Bilateral sagittal split osteotomy, Orthognathic surgery.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 5","pages":"e501-e506"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12142364/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248137","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":"A Comprehensive Clinical Perspective of Nasoalveolar Molding (NAM) for the Treatment of Cleft Lip and Palate patients.","authors":"Abdalmawla Alhussin Ali Ali","doi":"10.4317/jced.62575","DOIUrl":"10.4317/jced.62575","url":null,"abstract":"<p><strong>Background: </strong>Cleft lip and palate is widespread congenital abnormalities affecting the orofacial area. Nasoalveolar Molding (NAM) is a pre-surgical orthodontic method that has revolutionized the management of newborns with cleft lip and palate. Objectives: The purpose of this research are to present the steps of NAM appliance construction as well as to evaluate how presurgical nasoalveolar molding affected the long-term nasal, alveolar, and palate shape of infants with cleft lip and palate.</p><p><strong>Material and methods: </strong>Individuals with complete unilateral cleft lip and palate are candidates for NAM treatment. Earlier intervention, within the initial weeks of life, is essential for attaining best outcomes. Patients must be assessed for their general health and appropriateness for the NAM management.</p><p><strong>Results: </strong>The improvement of nostril height was 0.8 mm after application of NAM appliance and after primary surgical repair by 0.7mm, whereas the nostril width reported decrease by 1.4 mm after utilization of NAM and by 1 mm after lip repair. Columella-nasal base angle increase from 51.8 º to 90.1 º after application of NAM appliance and primary surgical repair. There were reduction of alveolar gap width by 7.6 mm and 9.3 mm after application of NAM appliance and primary surgical repair respectively.</p><p><strong>Conclusions: </strong>Nasoalveolar molding is effective pre-operative treatment for newborns with cleft lip and palate in comparison to their birth status. The advantages of this advanced approach to cleft treatment will be further increased by continuous research and improvement of NAM procedures, as well as a strong focus on interdisciplinary collaboration. <b>Key words:</b>Nasoalveolar molding for cleft lip and palate, Craniofacial anomalies, Pediatric dentistry, Infant Orthopedics, Pre-surgical orthodontics, Quality of life.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 5","pages":"e552-e559"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12142368/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248113","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}
Pooja V Ravi, Kavitha Ramar, Víctor Samuel, Pradeep K Yadalam, Carlos M Ardila
{"title":"Comparative evaluation of fracture resistance force of three different posterior aesthetic crowns and occlusal wear of antagonist primary teeth - An <i>in vitro</i> study.","authors":"Pooja V Ravi, Kavitha Ramar, Víctor Samuel, Pradeep K Yadalam, Carlos M Ardila","doi":"10.4317/jced.62730","DOIUrl":"10.4317/jced.62730","url":null,"abstract":"<p><strong>Background: </strong>Aesthetic restorations for managing severely carious primary molars pose a clinical challenge, particularly regarding limited treatment options and the importance of aesthetics to parents. While zirconia crowns are commonly used for posterior teeth due to their aesthetic appeal, advancements in digital technology have introduced alternative options such as polymethylmethacrylate (PMMA) crowns and 3D printable photopolymer resin crowns, which offer cost-effective alternatives. This in vitro study aimed to comparatively evaluate the fracture resistance force (FRF) and occlusal wear of three types of posterior aesthetic crowns: milled zirconia crowns, PMMA crowns, and 3D printable photopolymer resin crowns.</p><p><strong>Material and methods: </strong>A universal mechanical testing machine was employed to measure the FRF, while occlusal wear was assessed by subjecting five samples from each group to chewing simulation with opposing natural teeth. Preoperative and post-operative 3D scan measurements were obtained.</p><p><strong>Results: </strong>The average force required to fracture 3D printable photopolymer resin crowns was 877.212 N, compared to 1,326.522 N for PMMA crowns and 1,712.488 N for milled zirconia crowns. Significant differences in occlusal wear were observed in the zirconia (<i>p</i>-value= 0.005) and 3D printed crown groups (<i>p</i>-value= 0.010) when comparing pre-operative and post-operative measurements.</p><p><strong>Conclusions: </strong>This study suggests that PMMA crowns exhibit clinically acceptable fracture resistance force and cause minimal occlusal wear on opposing primary teeth. These findings support the potential long-term clinical use of PMMA crowns as an alternative to zirconia crowns in aesthetic restorations for severely decayed primary molars. <b>Key words:</b>Zirconia crowns, polymethylmethacrylate crowns, Photopolymer resin crowns, Primary teeth.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 5","pages":"e528-e534"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12142372/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248118","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}
Rishi Tyagi, Amit Khatri, Deepak Khandelwal, Padma Yangdol, Aman Kumar, Harshita Bisht, Shaikh Misbah, Chithaluru Pranathi, Urvi Bhatia
{"title":"A Rare Case of Pyknodysostosis (Toulouse-Lautrec Syndrome): Dental Perspectives on Comprehensive Management.","authors":"Rishi Tyagi, Amit Khatri, Deepak Khandelwal, Padma Yangdol, Aman Kumar, Harshita Bisht, Shaikh Misbah, Chithaluru Pranathi, Urvi Bhatia","doi":"10.4317/jced.62495","DOIUrl":"10.4317/jced.62495","url":null,"abstract":"<p><p>Pyknodysostosis (PKND), also referred to as Toulouse-Lautrec Syndrome, is a rare autosomal recessive disorder marked by short limbs, short stature, and generalized bone sclerosis. The hallmark signs of this disorder include sclerosis of the terminal phalanges, persistent fontanelles, delayed suture closure, wormian bones, absence of frontal sinuses, obtuse mandibular gonial angle, and relative mandibular prognathism. This case report elucidates a 13-year-old boy presenting with systemic features such as short stature, frontal and parietal bossing, depressed nasal bridge, a beaked nose, hypoplastic midface, wrinkled skin on the fingertips, and nail abnormalities. The oro-dental manifestations include deep palate, prominent palatal rugae, constricted maxillary arch, proclined maxillary anterior teeth and Class III skeletal profile. Radiographic findings showed hypoplastic paranasal sinuses, atrophic mandible, taurodontism, impacted permanent teeth along with several retained deciduous molars. This case highlights the need for vigilance in identifying the dental and systemic signs of PKND, emphasizing the importance of early diagnosis and tailored treatment strategies to improve patient outcomes. <b>Key words:</b>Pyknodysostosis, Toulouse-Lautrec syndrome, Dental management.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 5","pages":"e608-e613"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12142366/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248115","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":"Enhancing Shear Bond Strength of Composite to In-Office Bleached Enamel with Biomimetic Remineralizing Agents: An <i>In-Vitro</i> Study.","authors":"Sanjana Agarwal, Shashi Rashmi Acharya, Shubha Chhaparwal, Arun Mayya, Akshatha Chatra","doi":"10.4317/jced.62159","DOIUrl":"10.4317/jced.62159","url":null,"abstract":"<p><strong>Background: </strong>Bleaching procedures alter enamel microstructure, impacting composite bonding. Biomimetic remineralizing agents may restore the bond strength post-bleaching. This in-vitro study aimed to evaluate and compare the role of remineralizing agents on the shear bond strength of composite to in-office bleached enamel using the total-etch technique.</p><p><strong>Material and methods: </strong>28 human maxillary premolars were extracted for orthodontic purposes and split into buccal and palatal halves. The 55 samples were divided into five groups. Bleaching procedure was conducted and remineralizing agents were applied twice daily for 5 minutes over 24 days. The five groups included a negative control (Group 1) and groups treated with GC Tooth Mousse Plus (Group 2), Curodont Repair (Group 3), Regenerate Paste (Group 4), and CTx4 Gel (Group 5). A universal composite restorative was applied after total-etch and adhesive application. Shear bond strength was evaluated using an Instron 3366 universal testing machine with a 0.5mm/min loading rate. SEM analysis to assess the failure mode was evaluated on the representative samples. The normality of the data was assessed using the Shapiro-Wilkinson test. Inferential statistics were done using the Whitney U Test (between the groups).</p><p><strong>Results: </strong>Results of all the test groups (Groups 2-5) had statistically significant differences (<i>P</i>< 0.05) when compared with the negative control group (Group 1). There was a significant difference between Group III (Curodont Repair - p11-4 peptide) and Group IV (Regenerate Paste-NR5 Technology) with Group IV being the superior one.</p><p><strong>Conclusions: </strong>The null hypothesis was rejected. Remineralizing agents enhance the shear bond strength of composite to in-office bleached enamel using the total-etch technique. Regenerate paste (nR5 Technology) showed statistically better results than Curodont Repair paste (p11-4 peptide). <b>Key words:</b>CPP-ACP, Nano-hydroxyapatite, NR-5 Technology, Remineralization, Shear bond strength, Self-assembling peptide P11-4, Tooth bleaching.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 5","pages":"e569-e575"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12142359/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248121","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}
Noemí Vieira-Sebe, Fernando Almeida-Parra, Álvaro Ranz-Colio, Esther Moreno-Moreno, Julio Acero-Sanz
{"title":"Metastasis of oncocytic thyroid carcinoma in the mandibular condyle: An exceptional localization.","authors":"Noemí Vieira-Sebe, Fernando Almeida-Parra, Álvaro Ranz-Colio, Esther Moreno-Moreno, Julio Acero-Sanz","doi":"10.4317/jced.62635","DOIUrl":"10.4317/jced.62635","url":null,"abstract":"<p><strong>Introduction: </strong>Oncocytic thyroid carcinoma, previously known as Hürthle cell carcinoma, is a well-differentiated neoplasm accounting for 3-5% of malignant thyroid tumors. This type of carcinoma exhibits aggressive behavior with a propensity for lymphovascular invasion and distant metastases.</p><p><strong>Objective: </strong>To present an unusual clinical case of oncocytic thyroid carcinoma metastasis to the right mandibular condyle, highlighting its surgical management and clinical significance.</p><p><strong>Case report: </strong>An 86-year-old woman with a history of oncocytic thyroid carcinoma treated with total thyroidectomy and radioactive iodine in 2019. During follow-up, elevated thyroglobulin levels were detected, and a PET-CT scan revealed uptake in the right mandibular condyle. The lesion was confirmed by magnetic resonance imaging and surgical biopsy and was treated with a right condylectomy. Histopathological analysis revealed bone infiltration by oncocytic carcinoma. The patient had a favorable postoperative course, with undetectable serum thyroglobulin levels after surgery.</p><p><strong>Discussion: </strong>Bone metastases from oncocytic carcinoma are rare, with the lungs being the most common metastatic site. To our knowledge, this is the second reported case of mandibular metastasis and the first involving the mandibular condyle, underscoring the importance of radical surgical intervention and a multidisciplinary approach in such cases.</p><p><strong>Conclusions: </strong>This case highlights the aggressive nature of oncocytic thyroid carcinoma and the importance of early diagnosis and personalized treatment to improve the prognosis of bone metastases. <b>Key words:</b>Oncocytic thyroid carcinoma, bone metastases, mandible metastases.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 5","pages":"e614-e618"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12142357/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248124","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}
Gabriel Pereira Rosa, José Renato Brandão, Thiago Pires Claudio, Matheus Antoni da Silva Costa, Rogério de Oliveira Gondak, Elena Riet Correa Rivero, Ricardo Luiz Cavalcanti de Albuquerque-Júnior
{"title":"A Rare Case of Myofibroma of the Mandible Complicated by Traumatic Neuroma Arising After a Conservative Surgical Approach.","authors":"Gabriel Pereira Rosa, José Renato Brandão, Thiago Pires Claudio, Matheus Antoni da Silva Costa, Rogério de Oliveira Gondak, Elena Riet Correa Rivero, Ricardo Luiz Cavalcanti de Albuquerque-Júnior","doi":"10.4317/jced.62278","DOIUrl":"10.4317/jced.62278","url":null,"abstract":"<p><p>Myofibroma (MF) is an uncommon benign mesenchymal neoplasm composed of myofibroblasts. Traumatic neuroma (TN) is a non-neoplastic proliferative disorder of the nerve sheath in response to injury or surgery. Both are uncommon in the jaws. We present a case of a 39-year-old Afro-descendant woman with a unilocular radiolucent lesion in the posterior mandible, showing mild expansion and cortical disruption. Biopsy revealed proliferation of fascicularly arranged spindle cells strongly positive for α-SMA and podoplanin, with low Ki-67 (<5%), and the final diagnosis was central MF. Ten months after enucleation and curettage, persistent pain led to a second biopsy, which revealed proliferation of multiple hyperplastic nerve fascicles consistent with TN. The postoperative course was uneventful with 14-month follow-up. A discussion on the clinicopathological criteria for differential diagnosis of MF and other spindle cell tumors as well as the rare occurrence of post-surgical TN is also provided. <b>Key words:</b>Mouth neoplasms, differential diagnosis, mandible, oral pathology.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 5","pages":"e594-e598"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12142373/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248114","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}
Néstor Ríos-Osorio, Sandra Briñez-Rodríguez, Rafael Fernández-Grisales, Juan Triana-Correa, Anthony Pushaina-Velásquez, Hernán García-Restrepo, David Betancur-Calle, Camilo Meza-Meza, Adriana Tapia-Sierra, Carolina Berruecos, José Sierra-Sánchez
{"title":"Dynamic cyclic fatigue resistance of Reciproc® Blue, One Reci®, R-Motion®, and two Replica-Like endodontic files after autoclave sterilisation and/or immersion in sodium hypochlorite: A comparative <i>in vitro</i> study.","authors":"Néstor Ríos-Osorio, Sandra Briñez-Rodríguez, Rafael Fernández-Grisales, Juan Triana-Correa, Anthony Pushaina-Velásquez, Hernán García-Restrepo, David Betancur-Calle, Camilo Meza-Meza, Adriana Tapia-Sierra, Carolina Berruecos, José Sierra-Sánchez","doi":"10.4317/jced.62529","DOIUrl":"10.4317/jced.62529","url":null,"abstract":"<p><strong>Background: </strong>To compare the cyclic fatigue resistance (CFR) of Reciproc® Blue (RB), One Reci® (OR), R-Motion® (RM), Roll Wave Gold (RW) and RCS Blue T (RCS B-T) instruments.</p><p><strong>Material and methods: </strong>525 files (105 RB (25/0.08), 105 OR (25/0.06), 105 RM (25/0.06), 105 Wave Roll (25/0.07) and 105 RCS Blue T (25/0.06) were assigned into 7 groups (n =15) for each brand. Group 0: Instruments were not exposed to NaOCl or sterilization. Groups 1 and 4: instruments were exposed to 5% NaOCl 1 and 3 times, respectively. Groups 2 and 5: instruments were sterilized 1 and 3 times, respectively. Groups 3 and 6: Instruments were exposed to both, NaOCl and sterilization 1 and 3 times, respectively. Subsequently, files underwent a dynamic CFR test. The chemical composition of the files' surfaces from Group 0 was determined using energy-dispersive X-ray spectroscopy (EDS). Cyclic fatigue resistance time was statistically analysed using 1-way ANOVA and the Kruskal-Wallis test. Post hoc multiple range analysis applying Tukey's test and the Games-Howell test was conducted to assess significant differences.</p><p><strong>Results: </strong>Greater CFR values were observed in the RB instruments, followed by the RM, OR, RW and RCS B-T files, respectively (<i>p</i><0.05). No significant differences were observed among RM, OR and RW files (<i>p</i>>0.05). The lowest CFR values were observed in the RCS B-T files(<i>p</i><0.05). The CFR of RB, RM, and OR decreased when the instruments were autoclaved and immersed in 5% NaOCl (<i>p</i>>0.05) (3 times) compared with the control group.</p><p><strong>Conclusions: </strong>The RB displayed the best CFR values. The RB, RM and OR instruments were more vulnerable to the repeated cycles of NaOCl immersion combined with autoclave sterilisation. The high density of microstructural defects on the surface of RW and RCS B-T instruments, caused by a lack of quality control, makes their biomechanical behaviour unpredictable. <b>Key words:</b>Dynamic cyclic fatigue, nickel-titanium, autoclave sterilisation, sodium hypochlorite, Replica-Like endodontic files.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 5","pages":"e542-e551"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12142362/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248120","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":"<i>In vitro</i> comparison of the surface microhardness of three nanohybrid resin composites immersed in different pigmented beverages for varying exposure times.","authors":"Wendy Ayala-Amaya, Leonor Castro-Ramirez, Flor Santander-Rengifo, María Alvino-Vales, Denisse Turpo-Claudio, César Cayo-Rojas","doi":"10.4317/jced.62640","DOIUrl":"10.4317/jced.62640","url":null,"abstract":"<p><strong>Background: </strong>To assess the surface microhardness (SMH) of three nanohybrid resin composites after immersion in different pigmented beverages for varying exposure times.</p><p><strong>Material and methods: </strong>This <i>in vitro</i> longitudinal experimental study consisted of 120 samples equally distributed for Filtek Z350XT, Tetric N-Ceram, and Brillant NG resin composites. These were immersed for 1, 4, and 7 days in burgundy wine, ground coffee, purple corn beverage, and artificial saliva (control). For statistical analysis, the Kruskal-Wallis H-test and Friedman's test with Bonferroni's post hoc test were used. The significance level was <i>p</i><0.05.</p><p><strong>Results: </strong>When comparing the SMH on days 1, 4, and 7 of immersion in different beverages, it was evident that there were no significant differences in the composite resins Filtek Z350XT (<i>p</i> = 0.678, <i>p</i> = 0.731, and p<i>p</i> = 0.225; respectively) and Tetric N-Ceram (<i>p</i> = 0.214, <i>p</i> = 0.382, and <i>p</i> = 0.521; respectively). However, there were significant differences in Brilliant NG resin composite (<i>p</i> = 0.010, <i>p</i> = 0.011, and <i>p</i> = 0.006; respectively), showing that coffee significantly decreased the SMH of this resin compared to artificial saliva (<i>p</i> = 0.012, <i>p</i> = 0.007, and <i>p</i> = 0.004; respectively). In addition, burgundy wine, ground coffee, and purple corn significantly decreased the SMH of the three composite resins over time (<i>p</i><0.001).</p><p><strong>Conclusions: </strong>Brilliant NG resin composite significantly decreased its SMH on days 1, 4 and 7 of immersion in all beverages compared to Filtek Z350XT and Tetric N-Ceram resin composites. On the other hand, over time, burgundy wine, ground coffee, and purple corn significantly decreased the SMH of all three resin composites, while artificial saliva did not. <b>Key words:</b>Microhardness, nanohybrid resins, pigment drinks, in vitro study.</p>","PeriodicalId":15376,"journal":{"name":"Journal of Clinical and Experimental Dentistry","volume":"17 5","pages":"e493-e500"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12142371/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144248111","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}