Mahmoud M. Bakr , Ghassan Idris , Mahmoud Al Ankily
{"title":"The potential integration of Simodont® Dental Trainer in different stages of the dental curriculum","authors":"Mahmoud M. Bakr , Ghassan Idris , Mahmoud Al Ankily","doi":"10.1016/j.sdentj.2024.09.002","DOIUrl":"10.1016/j.sdentj.2024.09.002","url":null,"abstract":"<div><h3>Background</h3><div>The lack of standardised studies remains an obstacle to developing a consistent approach to integrating virtual dental simulation (VDS) into dental education. The aim of this study was to develop consensus among experienced educators and dental practitioners on the optimal integration of VDS at various stages of dental curricula. The goal was to propose clear yet flexible recommendations that could be implemented by most educational institutions.</div></div><div><h3>Methods</h3><div>Focus groups were established, consisting of experienced academic educators involved in VDS, experienced academic staff who had not previously been involved in VDS, and experienced dental practitioners. These groups exchanged ideas about the best ways to integrate VDS into dental curricula. The Simodont® Dental Trainer system was used to design a curriculum for VDS.</div></div><div><h3>Results</h3><div>The expert group agreed that VDS for manual dexterity exercises should be introduced in the first year of dental curricula. This should be followed by cariology exercises in the second year and crown preparation exercises in the third year, alongside traditional manikin-based simulation exercises. Additionally, VDS was recommended for senior students on an ad hoc basis for academic recovery purposes. However, VDS endodontic exercises were excluded from the proposed integrative dental curriculum. Other ways of utilising VDS were identified, such as student recruitment activities and intensive refreshment programs at the start of each academic year.</div></div><div><h3>Conclusions</h3><div>This study proposes a flexible approach to including VDS in dental curricula. This proposed approach can be customised to meet the specific needs of each educational institution, providing a tailored learning experience for students.</div></div>","PeriodicalId":47246,"journal":{"name":"Saudi Dental Journal","volume":"36 11","pages":"Pages 1449-1455"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659001","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}
Hawra Ali Aljanobi , Amr S. Bugshan , Muneer H. AlShuyukh , Mohammed M. Al-Hulami , Asim M. Khan
{"title":"Evaluating the effectiveness of various agents as interim preservative media for biopsy specimens: An experimental in vitro study","authors":"Hawra Ali Aljanobi , Amr S. Bugshan , Muneer H. AlShuyukh , Mohammed M. Al-Hulami , Asim M. Khan","doi":"10.1016/j.sdentj.2024.09.001","DOIUrl":"10.1016/j.sdentj.2024.09.001","url":null,"abstract":"<div><div>In the field of medicine, diagnosing diseases involves various steps, procedures, and protocols. Histopathological examination remains the gold standard for a definitive and accurate diagnosis. This process relies on an initial step of tissue fixation.</div><div>Formaldehyde is a traditional fixative material and is typically used as 10% or 4% buffered solutions. However, significant health risks are associated with formaldehyde exposure.</div><div>Our paper aimed to evaluate and compare variable media as a preservative agent. The study included eight groups as follows: (1) normal saline 0.9%; (2) local anesthesia with epinephrine (2% Lidocaine HCl/ 1:100,000 epi); (3) local anesthesia without epinephrine (3% Mepivacaine HCl/ plain); (4) distilled water; (5) Saliva collected from healthy male participants; (6) Milk (Almarai- full-fat fresh milk); (7) Propolis; and (8) l0% formalin. Three tissue samples from each group were fixed in 10% formalin for 24 h after being preserved for 6 h at ambient temperature in their respective media. All specimens were stained with Hematoxylin and Eosin.</div><div>The following histological structures were assessed: (1) superficial 1/3 of the epithelium, (2) middle 1/3 of the epithelium, (3) lower 1/3 of the epithelium, (4) basement membrane/rete ridges, (5) fibrous connective tissue, (6) blood vessels/endothelial cells, (7) skeletal muscle, (8) adipose tissue, and (9) nerve bundles. A numerical rating system was employed to assess these components, with scores ranging from 1 to 4.</div><div>Our findings suggest propolis has promising potential as a tissue fixative. This study highlighted the effectiveness of propolis as a preservative and fixative solution, which warrants further investigation.</div></div>","PeriodicalId":47246,"journal":{"name":"Saudi Dental Journal","volume":"36 11","pages":"Pages 1442-1448"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659000","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}
Ahmed Yaseen Alqutaibi , Hatem Hazzaa Hamadallah , Harith Fahad Oqbi , Sarah A. Almuzaini , Sary Borzangy
{"title":"Current applications and future perspective of virtual reality in dental education and practice in Saudi Arabia: A scoping review","authors":"Ahmed Yaseen Alqutaibi , Hatem Hazzaa Hamadallah , Harith Fahad Oqbi , Sarah A. Almuzaini , Sary Borzangy","doi":"10.1016/j.sdentj.2024.09.007","DOIUrl":"10.1016/j.sdentj.2024.09.007","url":null,"abstract":"<div><h3>Objective</h3><div>This scoping review aimed to evaluate the current state of virtual reality (VR) implementation in dental education and practice in Saudi Arabia, highlighting its advantages and challenges.</div></div><div><h3>Methods</h3><div>A scoping review examined VR’s role in regrading dental education and practice in Saudi Arabia by searching electronic databases, including PubMed, Web of Science, and Scopus, from inception to July 2024. Studies including VR applications for education, skills development, or anxiety/pain management involving Saudi dental students and practitioners were included.</div></div><div><h3>Results</h3><div>Eleven relevant studies were identified: 5 focused on education and 6 on clinical practice. Educational studies showed mixed effectiveness of VR versus traditional methods but positive student perceptions. Clinical application studies also had mixed results on VR’s impact on anxiety and pain, though some benefits were noted. VR systems included distraction-based, simulator-based, and hybrid VR/augmented reality with artificial intelligence.</div></div><div><h3>Conclusion</h3><div>While the current implementation of VR in dental practice in Saudi Arabia shows promise, particularly in enhancing students’ engagement and reducing patients’ anxiety, more comprehensive and robust research is needed to validate its effectiveness fully. Strategic efforts should focus on expanding research, tailoring applications, and integrating VR with traditional methods to align with the healthcare objectives<!--> <!-->of<!--> <!-->Vision<!--> <!-->2030.</div></div>","PeriodicalId":47246,"journal":{"name":"Saudi Dental Journal","volume":"36 11","pages":"Pages 1406-1416"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658531","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":"Association between dental diseases and stroke","authors":"Haocheng Zhang , Qian Yu , Caidi Ying , Yibo Liu , Xiaoyu Wang , Yinghan Guo , Liang Xu , Yuanjian Fang , Xiaoyue Liao , Sheng Chen","doi":"10.1016/j.sdentj.2024.09.012","DOIUrl":"10.1016/j.sdentj.2024.09.012","url":null,"abstract":"<div><h3>Introduction</h3><div>This study aimed to analyze the existing evidence on the association between dental diseases and stroke. Various pathogenic mechanisms, including bacteraemia and systemic inflammation, were investigated to explore their impact on stroke occurrence and severity.</div></div><div><h3>Methods</h3><div>A comprehensive literature search was conducted through the online databases PubMed, Google Scholar, Web of Science, and Scopus. The initial screening process resulted in a total of 138 articles being gathered. Upon subsequent refinement, 52 articles were discarded due to duplication or non-English language, leaving 86 articles for further assessment.</div></div><div><h3>Results</h3><div>Oral bacteria can travel to the brain’s blood vessels and cause bacteraemia, leading to local inflammation and the release of toxins. This process can result in the blockage or rupture of blood vessels, leading to stroke. Oral infections consistently trigger immune responses and systemic inflammation, with inflammation-related proteins playing a crucial role in stroke development. Notably, periodontal treatment could reduce the risk of stroke.</div></div><div><h3>Conclusion</h3><div>This review emphasizes the role of dental diseases in promoting stroke occurrence through various mechanisms. Dental diseases contribute to the development of stroke by facilitating bacteraemia and systemic inflammation. Furthermore, through effectively treating and preventing dental diseases, the risk of strokes can be significantly reduced.</div></div>","PeriodicalId":47246,"journal":{"name":"Saudi Dental Journal","volume":"36 11","pages":"Pages 1389-1396"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658528","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}
Arwa A. Alsayed , Mariam B. Aldajani , Marwan H. Aljohani , Hamdan Alamri , Maram A. Alwadi , Bodor Z. Alshammari , Falah R. Alshammari
{"title":"Assessing the quality of AI information from ChatGPT regarding oral surgery, preventive dentistry, and oral cancer: An exploration study","authors":"Arwa A. Alsayed , Mariam B. Aldajani , Marwan H. Aljohani , Hamdan Alamri , Maram A. Alwadi , Bodor Z. Alshammari , Falah R. Alshammari","doi":"10.1016/j.sdentj.2024.09.009","DOIUrl":"10.1016/j.sdentj.2024.09.009","url":null,"abstract":"<div><h3>Aim</h3><div>Evaluation of the quality of dental information produced by the ChatGPT artificial intelligence language model within the context of oral surgery, preventive dentistry, and oral cancer.</div></div><div><h3>Methodology</h3><div>This study adopted quantitative methods approach. The experts prepared 50 questions (including dimensions of, risk factors, preventive measures, diagnostic methods, and treatment options) that would be presented to ChatGPT, and its responses were rated for their accuracy, completeness, relevance, clarity or comprehensibility, and possible risks using a standardized rubric. To carry out the assessment of the responses by ChatGPT, a standardized scoring rubric was used. Evaluation process included feedback concerning the strengths, weaknesses, and potential areas of improvement in the responses provided by ChatGPT.</div></div><div><h3>Results</h3><div>While achieving the highest score for preventive dentistry at 4.3/5 and being able to communicate the complex information coherently, the tool showed lower accuracy for oral surgery and oral cancer, scoring 3.9/5 and 3.6/5, respectively, with several gaps for post-operative instructions, personalized risk assessments, and specialized diagnostic methods. Potential risks, such as a lack of individualized advice, were shown in 53% of the oral cancer and in 40% of the oral surgery. While showing promise in some domains, ChatGPT had important limitations in specialized areas that require nuanced expertise.</div></div><div><h3>Conclusion</h3><div>The findings point to the need for professional supervision while using AI-generated information and ongoing evaluation as capabilities evolve, for the assurance of responsible implementation in the best interest of patient care.</div></div>","PeriodicalId":47246,"journal":{"name":"Saudi Dental Journal","volume":"36 11","pages":"Pages 1483-1489"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658509","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}
Yasser S. Alali , Khaled M. Al Habeeb , Khaled A. Al Malhook , Sami Alshehri
{"title":"Diagnosis and management of idiopathic condylar Resorption: A review of literature","authors":"Yasser S. Alali , Khaled M. Al Habeeb , Khaled A. Al Malhook , Sami Alshehri","doi":"10.1016/j.sdentj.2024.09.013","DOIUrl":"10.1016/j.sdentj.2024.09.013","url":null,"abstract":"<div><h3>Background and objectives</h3><div>Idiopathic condylar resorption (ICR) can be described as a dysfunctional remodeling of the temporomandibular joint (TMJ). It is clinically characterized by morphological changes in TMJ including reduced ramus height, accelerated mandibular retrusion and reduced growth in juveniles. With a strong predilection towards females (90 %) within an age group of 10 to 40 years, diagnosis and management of ICR is a critical clinical challenge. The aim of this study is to present a comprehensive review of diagnosis and management strategies for ICR.</div></div><div><h3>Materials and Methods</h3><div>Literature search based on keywords relating to ICR was conducted on PubMed (Medline) database. Studies fulfilling the inclusion criteria (reports based on clinical diagnosis and management of ICR) were selected for comprehensive review.</div></div><div><h3>Results</h3><div>253 articles were identified through literature search. After abstract screening and full-text review, 54 studies were selected for qualitative synthesis. Diagnosis of ICR is established by combination of clinical and radiographic findings, patient history, and exclusion of all known local/systemic factors contributing to condylar resorption. Management of ICR depends on condylar activity and surgeon’s ability to preserve the articular disc and mandibular condyle, and could either be surgical or non-surgical. Surgical treatment can be either by orthognathic surgery alone or through a combination of orthognathic and TMJ surgeries.</div></div><div><h3>Conclusion</h3><div>Based on the present review, it may be concluded that diagnosis and management of ICR requires adequate clinical understanding of the condition. Identifying the stage of ICR is important in deciding optimum treatment plan. While early-stage ICR could be managed non-surgically by orthodontic and splint therapies, advanced stage disease require simultaneous TMJ Surgery with orthognathic correction for skeletal stability. Future research should focus on elucidating underlying mechanisms of ICR, refining diagnostic criteria, and optimizing treatment protocols to enhance patient outcomes.</div></div>","PeriodicalId":47246,"journal":{"name":"Saudi Dental Journal","volume":"36 11","pages":"Pages 1397-1405"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658530","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":"Mutagenicity and DNA damage assessment of locally produced nano-hydroxyapatite-silica-glass ionomer cement on human periodontal ligament fibroblasts using Ames and Comet assays","authors":"Fayez Hussain Niazi , Norhayati Luddin , Abdurahman Niazy , Suharni Mohamad , Masitah Hayati Harun , Mohammed Noushad , Kannan Thirumulu Ponnuraj","doi":"10.1016/j.sdentj.2024.08.009","DOIUrl":"10.1016/j.sdentj.2024.08.009","url":null,"abstract":"<div><h3>Aim</h3><div>This research assessed the mutagenicity and DNA damage of a novel type of nano-hydroxyapatite-silica glass ionomer cement (nano-HA-SiO<sub>2</sub>-GIC) and a conventional GIC (cGIC) using Ames and Comet assays.</div></div><div><h3>Methods</h3><div>Cell viability was tested on human periodontal ligament fibroblasts (HPLFs) using 3.125 mg/ml, 6.25, 12.5, 25, 50, 100 and 200 mg/ml, on both types of GICs employing MTT assay. For the Comet assay, HPLFs were treated with IC<sub>50</sub>, IC<sub>25</sub> and IC<sub>10</sub> of test materials and the tail moments were measured. In the Ames test, four genotypic variants of strains of <em>Salmonella typhimurium</em> (TA100, TA98, TA1537 and TA1535) and a strain of <em>Escherichia coli</em> (WP2 uvrA) were employed. The material tested was extracted using sterile distilled water (0.2 g per ml) at 37 °C for 72 h. This was considered as 100 %, which was diluted to 50, 25, 12.5 and 6.25 % utilizing sterile distilled water. These five concentrations were incubated with the bacterial strains with and without metabolic activation (S9), along with appropriate positive controls. The number of revertant colonies was used to evaluate the outcome.</div></div><div><h3>Results</h3><div>The highest cell viability (159.4 %) for nano-HA-SiO<sub>2</sub>-GIC was noticed at 3.125 mg/ml, while the lowest (24.26 %) was observed at 200 mg per ml. IC<sub>50</sub>, IC<sub>25</sub> and IC<sub>10</sub> values were 95.27, 51.4 and 20.1 mg/ml for cGIC, 106.9, 55.8 and 22.9 mg/ml for nano-HA-SiO<sub>2</sub>-GIC, respectively. The IC<sub>10</sub> of both test materials showed no significant DNA damage compared to that of the negative control based on the Comet assay. The plate treated with nano-HA-SiO<sub>2</sub>-GIC showed less than double the average number of revertant colonies compared to that of negative control with regard to the Ames test.</div></div><div><h3>Conclusions</h3><div>It can be concluded that nano-HA-SiO<sub>2</sub>-GIC is non-mutagenic based on the Ames test and did not cause DNA damage at the lowest concentration of IC<sub>10</sub> based on the Comet assay.</div></div>","PeriodicalId":47246,"journal":{"name":"Saudi Dental Journal","volume":"36 11","pages":"Pages 1432-1437"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658998","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}
Nermine Ramadan Mahmoud , Mohamed Hatem Kamal Eldin , Mai Hassan Diab , Omar Samy Mahmoud , Yasser El-Sayed Fekry
{"title":"Computer guided versus freehand dental implant surgery: Randomized controlled clinical trial","authors":"Nermine Ramadan Mahmoud , Mohamed Hatem Kamal Eldin , Mai Hassan Diab , Omar Samy Mahmoud , Yasser El-Sayed Fekry","doi":"10.1016/j.sdentj.2024.09.006","DOIUrl":"10.1016/j.sdentj.2024.09.006","url":null,"abstract":"<div><h3>Objective</h3><div>This study compares, in terms of rehabilitation and recovery, freehand implant placement using flapless or mini-flap procedures with the use of 3D implant design software and specialized surgical templates among patients who are partially or completely edentulous. A secondary aim is to propose an algorithm for predicting the accuracy of implant placement. Method.</div><div>Patients with an alveolar height of at least 7 mm and an alveolar width of at least 4 mm were randomly assigned to two groups. Group I comprised ten patients who received computer-guided dental implant placement, while Group II comprised ten patients who received manual placements. A temporary prosthodontic was immediately inserted onto the implants, which was replaced by a permanent one after 4–6 months.</div></div><div><h3>Results</h3><div>The study enrolled twenty patients. A blinded, independent assessor evaluated the outcome variables, which included implant failure, marginal bone loss, treatment duration, post-surgical pain and swelling, use of painkillers, surgical time, and patient satisfaction. Pain scores in Group II were significantly higher than those in Group I, but there were no other significant differences. All patients experienced pain after 2 days, but by 7 days, only two patients in Group I and four patients in Group II were still suffering, although this difference was not statistically significant. After 14 days, all patients were asymptomatic.</div></div><div><h3>Conclusion</h3><div>Although the freehand technique is straightforward for experienced surgeons, surgical guides enhance the accuracy of implant placement, particularly in a deficient alveolar ridge.</div></div>","PeriodicalId":47246,"journal":{"name":"Saudi Dental Journal","volume":"36 11","pages":"Pages 1472-1476"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659005","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}
Firas K. Alqarawi , Mohammed E. Sayed , Harisha Dewan , Fawzia Ibraheem Shaabi , Hina Naim , Manawar Ahmad , Hanan Ibrahim Hakami , Ebrahim Fihaid Alsubaiy , Areen Sultan , Saad Saleh AlResayes
{"title":"Cumulative effect of digital manufacturing techniques, preparation taper and finish line designs on the retention of aged temporary molar crowns − An in vitro study","authors":"Firas K. Alqarawi , Mohammed E. Sayed , Harisha Dewan , Fawzia Ibraheem Shaabi , Hina Naim , Manawar Ahmad , Hanan Ibrahim Hakami , Ebrahim Fihaid Alsubaiy , Areen Sultan , Saad Saleh AlResayes","doi":"10.1016/j.sdentj.2024.09.008","DOIUrl":"10.1016/j.sdentj.2024.09.008","url":null,"abstract":"<div><h3>Objective</h3><div>This study evaluated the effects of finish-line design, tooth preparation taper or total occlusal convergence (TOC), and digital production technology on the retention of provisional crowns for molars.</div></div><div><h3>Material and Methods</h3><div> <!-->Different taper angles (10° TOC and 20° TOC) and finish line designs (chamfer and shoulder) were used to prepare four mandibular first molar teeth. Two subgroups of the prepared teeth received temporary crowns that were either “Computer-Aided Design” and “Computer-Aided Manufacturing (CAD/CAM) milled or 3D printed. Hence, eight test groups of temporary crowns containing 10 samples each were created. Groups 1–4 were milled, and Groups 5–8 were 3D printed specimens. A consistent procedure was used to cement 80 temporary crowns. The specimens were thermocycled for a total of 5000 heat cycles, initially at 5 °C for 30 s (dwell time) and then at 55 °C for 30 s. The pull-off force necessary to remove the temporary crowns was recorded, and the tensile strength, which served as the dependent variable, was calculated. Analysis of variance (ANOVA) was used to assess the variations in retention forces among the test groups.</div></div><div><h3>Results</h3><div> <!-->The mean tensile strengths at maximum load [MPa] were higher in Groups 5, 6, 7, 8 (6.6 MPa, 6.91 MPa, 7.65 MPa, and 7.45 MPa respectively) as compared to the mean tensile strengths at maximum load [MPa] in Groups 1, 2, 3, 4 (2.35 MPa, 3.52 MPa, 3.21 MPa, and 2.45 MPa respectively).</div></div><div><h3>Conclusion</h3><div>For extended periods, 3D-printed crowns with steeper preparation tapers (20° TOC) and shoulder finish lines exhibited enhanced retention.</div></div>","PeriodicalId":47246,"journal":{"name":"Saudi Dental Journal","volume":"36 11","pages":"Pages 1477-1482"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659006","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}
Martha Esperanza García-Moreno, Elias Nahum Salmerón-Valdés, Adriana Alejandra Morales-Valenzuela, Ulises Velázquez-Enríquez, Víctor Hugo Toral-Rizo, Edith Lara-Carrillo
{"title":"An in vitro study of fluoride-preloaded halloysite nanotubes to enhance the fluoride release in conventional and resin-modified glass ionomer cements","authors":"Martha Esperanza García-Moreno, Elias Nahum Salmerón-Valdés, Adriana Alejandra Morales-Valenzuela, Ulises Velázquez-Enríquez, Víctor Hugo Toral-Rizo, Edith Lara-Carrillo","doi":"10.1016/j.sdentj.2024.09.010","DOIUrl":"10.1016/j.sdentj.2024.09.010","url":null,"abstract":"<div><h3>Objective</h3><div>The purpose of the study was to compare the fluoride release in two conventional glass ionomer cements (Ionobond, Ketac Molar) and two resin-modified glass ionomer cements (Vitrebond, Fuji II LC) adapted with halloysite nanotubes preloaded with sodium fluoride at different concentrations.</div></div><div><h3>Methods</h3><div>In total, 96 samples were prepared and distributed into four control groups and eight experimental groups (5 % and 10 %). Totals of 10 % and 5 % of the total weight of ionomer powder needed to prepare the samples were replaced with nanotubes, preloaded at 2,000 parts per million, respectively. The experimental groups were followed for 120 days at seven time intervals. All the samples were stored at 37 °C.</div></div><div><h3>Results</h3><div>All the experimental groups showed significant differences compared with the control groups; likewise, differences were observed between the concentrations of 5% and 10%.</div></div><div><h3>Conclusion</h3><div>The experimental groups (conventional and resin-modified glass ionomer cements adapted with preloaded nanotubes) released a higher and more constant amount of fluoride compared to the control groups.</div></div>","PeriodicalId":47246,"journal":{"name":"Saudi Dental Journal","volume":"36 11","pages":"Pages 1490-1494"},"PeriodicalIF":1.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658510","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}