International Journal of Dentistry最新文献

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The Prospective Effect of Green Tea versus Pomegranate Peels Extracts on Submandibular Salivary Glands of Albino Rats after Methotrexate Administration (Histological and Immunohistochemical Study). 绿茶和石榴皮提取物对服用甲氨蝶呤后白化大鼠颌下唾液腺的前瞻性影响(组织学和免疫组化研究)
IF 2.1
International Journal of Dentistry Pub Date : 2024-01-03 eCollection Date: 2024-01-01 DOI: 10.1155/2024/3290187
Rasha M Taha, Ghada A Abdel-Latif, Rania H Said
{"title":"The Prospective Effect of Green Tea versus Pomegranate Peels Extracts on Submandibular Salivary Glands of Albino Rats after Methotrexate Administration (Histological and Immunohistochemical Study).","authors":"Rasha M Taha, Ghada A Abdel-Latif, Rania H Said","doi":"10.1155/2024/3290187","DOIUrl":"10.1155/2024/3290187","url":null,"abstract":"<p><strong>Background: </strong>There is curiosity in the use of substances that can stop cell damage. Antioxidants are substances that can prevent free radicals from damaging cells, and they can be used to treat and avoid a wide variety of illnesses.</p><p><strong>Objectives: </strong>The current investigation set out to evaluate the histological changes brought on by a single high dose of methotrexate in the submandibular glands of rats treated with green tea and pomegranate peel extract, both are well-known as antioxidants.</p><p><strong>Materials and methods: </strong>Forty-eight healthy Albino rats were used in the current study. Animals were divided into six groups. Group 1: Vehicle group which is control group, Group 2: methotrexate treated group, Group 3: green tea control group, Group 4: pomegranate peel extract control group, Group 5: green tea + methotrexate group, and Group 6: pomegranate peel extract + methotrexate group. Rats of all groups were left 1 week after the end of the treatment. Cervical dislocation was used to kill all of the rats. Samples were gained from the rats' submandibular salivary glands of different groups for histological and immunohistochemical evaluation.</p><p><strong>Results: </strong>Green tea + methotrexate group showed improvement in the histological picture of the submandibular salivary gland compared to methotrexate group and the pomegranate peel extract + methotrexate group.</p><p><strong>Conclusion: </strong>The antioxidant activity of green tea is more potent than that of pomegranate peels extract in blocking methotrexate that induced cytotoxicity in the submandibular salivary glands of rats. As a result, it can be administered to people undergoing cancer treatment as a safeguard for their salivary glands.</p>","PeriodicalId":13947,"journal":{"name":"International Journal of Dentistry","volume":"2024 ","pages":"3290187"},"PeriodicalIF":2.1,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10781530/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139424618","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}
引用次数: 0
Prevalence of Vertical Root Fractures in a University Endodontics Program versus a Private Endodontics Office 大学牙髓病学专业与私人牙髓病学诊室垂直根折的发生率对比
IF 2.1
International Journal of Dentistry Pub Date : 2023-12-19 DOI: 10.1155/2023/2098629
Berit Ek, S. Zweig, Ramon G. Roges, Yaara Berdan, Rafael Roges, A. Abulhamael, Abrar Kutbi, A. Alqutub, Osama S. Alothmani, Amna Y. Siddiqui
{"title":"Prevalence of Vertical Root Fractures in a University Endodontics Program versus a Private Endodontics Office","authors":"Berit Ek, S. Zweig, Ramon G. Roges, Yaara Berdan, Rafael Roges, A. Abulhamael, Abrar Kutbi, A. Alqutub, Osama S. Alothmani, Amna Y. Siddiqui","doi":"10.1155/2023/2098629","DOIUrl":"https://doi.org/10.1155/2023/2098629","url":null,"abstract":"Introduction. Vertical root fractures (VRFs) typically have a poor prognosis with an extraction or occasionally root amputation as the preferred treatment. VRFs have been considered an epidemic, motivating changes in the access openings, as well as in the preparation and disinfection protocols of endodontic treatment. Hence, we aimed to evaluate the prevalence of VRFs by tracking cases in both a University Endodontic Program (UEP) and a private endodontics practice (PP). We also evaluated changes in prevalence during COVID-19 along with the alterations in the frequency of cases diagnosed by clinical and radiographic signs which were later confirmed by direct visualization compared to those in which the suspicion was based on clinical and radiographic signs alone. Methods and Materials. This retrospective study looked at the prevalence of VRF in patient records at UEP and a PP. Data for the pre-COVID-19 and COVID-19 time periods were extracted from patient records and referral letters then compared. Data for suspected and confirmed prevalence were compared. Results. The UEP group included 21,156 patients while the PP group comprised 7,209 patients. The prevalence of VRFs in the former cohort was 1.80%, while 2.62% of the latter cohort exhibited VRFs with a combined total of 2.01%. The combined total prevalence of VRFs pre-COVID-19 was 1.72%, increasing from 2.1% to 3.82% during COVID-19 (\u0000 \u0000 p\u0000 <\u0000 0.0001\u0000 \u0000 ). The same applied to suspected cases for both clinical settings. The increase in confirmed cases between the two periods was statistically significant for the UEP group (\u0000 \u0000 p\u0000 =\u0000 0.0202\u0000 \u0000 ) but it was insignificant for the PP group (\u0000 \u0000 p\u0000 =\u0000 0.0721\u0000 \u0000 ). Conclusion. The combined prevalence for VRFs was 2.01% for all years denying the claim that VRF is a pandemic phenomenon. COVID-19 period saw almost a double increase in the prevalence of VRF compared to pre-COVID-19 era. This was consequently associated with a significant increase in the number of suspected VRF cases.","PeriodicalId":13947,"journal":{"name":"International Journal of Dentistry","volume":" March","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138960587","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}
引用次数: 0
Comparative Evaluation of the Effect of Implant Crown Materials on Implant Components and Bone Stress Distribution: A 3D Finite Element Analysis. 种植体牙冠材料对种植体组件和骨应力分布影响的比较评估:三维有限元分析
IF 2.1
International Journal of Dentistry Pub Date : 2023-12-14 eCollection Date: 2023-01-01 DOI: 10.1155/2023/1896475
Kimia Nokar, Faezeh Atri, Saied Nokar
{"title":"Comparative Evaluation of the Effect of Implant Crown Materials on Implant Components and Bone Stress Distribution: A 3D Finite Element Analysis.","authors":"Kimia Nokar, Faezeh Atri, Saied Nokar","doi":"10.1155/2023/1896475","DOIUrl":"10.1155/2023/1896475","url":null,"abstract":"<p><strong>Background: </strong>Choosing implant crown materials for restoration remains challenging in clinical practice. This study assesses the impact of all-ceramic restoration instead of porcelain-fused-to-metal (PFM) restoration on the stress distribution within implant components and the surrounding bone.</p><p><strong>Methods: </strong>Four 3D models of a mandibular second premolar were meticulously prepared. The study groups comprised zirconia, lithium disilicate, and zirconia lithium silicate monolithic ceramic crowns cemented onto a zirconia hybrid abutment. A PFM crown cemented onto a cementable abutment was chosen as the control group. A total vertical load of 583 N was applied to the occlusal contact areas. Stress distribution within the crown and implant components was analyzed using von Mises stress analysis. Principal stress analyses were employed to assess stress distribution in the peripheral bone.</p><p><strong>Results: </strong>The PFM model exhibited the highest von Mises stress values for both the implant (428.7 MPa) and crown (79.7 MPa) compared to the other models. The all-ceramic models displayed the highest maximum von Mises stress within the abutment, approximately 335 MPa, compared to the PFM model. von Mises stresses of the abutment and implant in the all-ceramic models were 69% higher and 20% lower, respectively, than those in the PFM model. Screw stresses were relatively consistent across all groups. Principal stresses in spongy bone and minimum principal stress in cortical bone were consistent across all models.</p><p><strong>Conclusions: </strong>All-ceramic restoration with a hybrid abutment, as opposed to traditional PFM restoration with a cementable abutment, does not adversely affect the implant and abutment screw and reduces crown stresses. Stresses within hybrid abutments were notably higher than those within cementable abutments. Spongy bone stresses remained unaffected by the type of crown or abutment.</p>","PeriodicalId":13947,"journal":{"name":"International Journal of Dentistry","volume":"2023 ","pages":"1896475"},"PeriodicalIF":2.1,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10735729/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138829613","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}
引用次数: 0
Prevalence of Dental Caries in Schoolchildren from the Galapagos Islands: ESSO-Gal Cohort Report. 加拉帕戈斯群岛学龄儿童龋齿患病率:ESSO-Gal队列报告。
IF 2.1
International Journal of Dentistry Pub Date : 2023-12-11 eCollection Date: 2023-01-01 DOI: 10.1155/2023/6544949
Ana Armas-Vega, Juan Marcos Parise-Vasco, María Cristina Díaz-Segovia, David Alejandro Arroyo-Bonilla, María José Cabrera-Dávila, María Christel Zambrano-Bonilla, Ingrid Ordonez-Romero, Andrea Caiza-Rennella, Andrea Zambrano-Mendoza, Celia Ponce-Faula, Andrés Viteri-García
{"title":"Prevalence of Dental Caries in Schoolchildren from the Galapagos Islands: ESSO-Gal Cohort Report.","authors":"Ana Armas-Vega, Juan Marcos Parise-Vasco, María Cristina Díaz-Segovia, David Alejandro Arroyo-Bonilla, María José Cabrera-Dávila, María Christel Zambrano-Bonilla, Ingrid Ordonez-Romero, Andrea Caiza-Rennella, Andrea Zambrano-Mendoza, Celia Ponce-Faula, Andrés Viteri-García","doi":"10.1155/2023/6544949","DOIUrl":"https://doi.org/10.1155/2023/6544949","url":null,"abstract":"<p><strong>Objective: </strong>Dental caries remains a prevalent disease worldwide. Several epidemiological studies have shown that it affects the oral health of the pediatric population, and the Galapagos population in Ecuador is no exception. The aim of this study was to determine the prevalence of dental caries and its association, based on baseline information from the Galapagos Oral Health Study (ESSO-Gal), in children of the Galapagos Islands, Ecuador.</p><p><strong>Methods: </strong>A cross-sectional study was conducted involving 804 children aged 2-11 years. The prevalence of dental caries was assessed using the International Caries Detection and Assessment System (ICDAS II) criteria, while the presence of dental biofilm was assessed using the Silness-Löe index. Descriptive statistics, including frequency analysis and measures of central tendency and dispersion, were performed. Inferential statistical analyses were conducted to identify associations between variables. Statistical analyses were performed using the SPSS version 25.0 statistical program.</p><p><strong>Results: </strong>The caries prevalence rates based on ICDAS II codes 1-6, 1-2, and 3-6 were 98.01%, 96.9%, and 85%, respectively. A statistically significant difference was observed among the different islands regarding the cutoff point for ICDAS II codes 3-6 (<i>p</i> ≤ 0.001). Participants aged 6-11 years had the highest caries prevalence.</p><p><strong>Conclusions: </strong>The results show a high prevalence of dental caries among children in the Galapagos Islands, which increases with age. Contrary to expectations, the study did not find a significant correlation between the severity of dental caries and the presence of dental biofilm.</p>","PeriodicalId":13947,"journal":{"name":"International Journal of Dentistry","volume":"2023 ","pages":"6544949"},"PeriodicalIF":2.1,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10727802/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138796655","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}
引用次数: 0
Use of Optical Coherence Tomography in Dentistry. 光学相干断层扫描在牙科中的应用。
IF 2.1
International Journal of Dentistry Pub Date : 2023-12-11 eCollection Date: 2023-01-01 DOI: 10.1155/2023/4179210
Omer Sefvan Janjua, Waqar Jeelani, Muhammad Ikram Khan, Sana Mehmood Qureshi, Muhammad Saad Shaikh, Muhammad Sohail Zafar, Zohaib Khurshid
{"title":"Use of Optical Coherence Tomography in Dentistry.","authors":"Omer Sefvan Janjua, Waqar Jeelani, Muhammad Ikram Khan, Sana Mehmood Qureshi, Muhammad Saad Shaikh, Muhammad Sohail Zafar, Zohaib Khurshid","doi":"10.1155/2023/4179210","DOIUrl":"https://doi.org/10.1155/2023/4179210","url":null,"abstract":"<p><p>Optical coherence tomography (OCT) is an optics-based imaging technique, which may be called an \"optical biopsy.\" It can be used to acquire structural information about a tissue at a resolution comparable to histopathology. OCT is based on the principle of low-coherence interferometry where near-infrared (NIR) light is shown on a tissue sample and then cross-sectional images are obtained based on backscattered light and echo time delay. Two main types of OCT are characterized as time-domain OCT (TD-OCT) and Fourier-domain OCT (FD-OCT). The applications of OCT in dentistry can be broadly divided into two groups, i.e., assessment of pathologies and assessment of surfaces and interfaces. Lately, OCT has made its transition from experimental laboratories to mainstream clinical applications. Starting from the short-term training courses, clinicians working in specialities like oral pathology, oral medicine, and oral implantology may find it a useful tool for their practices. It is now clear that OCT will be considered a gold standard diagnostic tool for the detection and characterization of several conditions and lesions of the orofacial region. However, the next challenge will be to incorporate it into the undergraduate and postgraduate curriculum and train dental healthcare staff in the use of these devices.</p>","PeriodicalId":13947,"journal":{"name":"International Journal of Dentistry","volume":"2023 ","pages":"4179210"},"PeriodicalIF":2.1,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10727803/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138796891","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}
引用次数: 0
Oral Inflammation and Human Papilloma Virus Association among Hispanics. 西班牙裔口腔炎症与人类乳头瘤病毒的关系
IF 2.1
International Journal of Dentistry Pub Date : 2023-12-11 eCollection Date: 2023-01-01 DOI: 10.1155/2023/7247976
Maira A Castañeda-Avila, Cynthia M Pérez, José Vivaldi, Elba C Díaz-Toro, Jeslie M Ramos-Cartagena, Oelisoa M Andriankaja, Ana P Ortiz
{"title":"Oral Inflammation and Human Papilloma Virus Association among Hispanics.","authors":"Maira A Castañeda-Avila, Cynthia M Pérez, José Vivaldi, Elba C Díaz-Toro, Jeslie M Ramos-Cartagena, Oelisoa M Andriankaja, Ana P Ortiz","doi":"10.1155/2023/7247976","DOIUrl":"10.1155/2023/7247976","url":null,"abstract":"<p><strong>Background: </strong>Identifying factors related to persistent human papillomavirus (HPV) infection is essential to reduce the incidence of HPV-related cancers.</p><p><strong>Objective: </strong>To evaluate whether gingival/periodontal inflammation is associated with oral HPV infection.</p><p><strong>Methods: </strong>This cross-sectional study (<i>n</i> = 740) uses data from the follow-up visit of the San Juan Overweight Adults Longitudinal Study, which recruited overweight/obese adults aged 40-65 from Puerto Rico. Participants completed a dental examination and two interviews (face-to-face/ACASI) and provided oral rinse samples for HPV detection. Oral inflammation was assessed using two definitions: (1) the number of sites with bleeding on probing (BOP), and (2) the number of teeth with probing pocket depths (PPD) ≥ 4 mm and BOP. Multivariate logistic regression was used to assess the association between oral inflammation and oral HPV.</p><p><strong>Results: </strong>Nearly three-quarters (72%) of participants were female, and 68% had 50 years or older. Participants with HPV had a higher mean number of sites with BOP (15.5 vs. 10.1) and teeth with PPD ≥ 4 mm and BOP (8.5 vs. 3.2) than participants without HPV (<i>p</i> < 0.05). After adjusting for sex, age, income, and the number of oral sex partners, the odds of having an oral HPV infection increased by 3% (95% confidence interval (CI): 1.00-1.06) for any additional sites with BOP and 5% (95% CI: 1.02-1.09) for any other teeth with PPD ≥ 4 mm and BOP.</p><p><strong>Conclusions: </strong>We found that oral inflammation was associated with oral HPV infection among adults in Puerto Rico. Future studies need to further investigate the underlying mechanisms.</p>","PeriodicalId":13947,"journal":{"name":"International Journal of Dentistry","volume":"2023 ","pages":"7247976"},"PeriodicalIF":2.1,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10727800/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138796417","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}
引用次数: 0
Vertical Marginal Discrepancy of a Monolithic Zirconia Crown with Different Cement Spaces 不同粘接剂间隙的整体氧化锆冠的垂直边缘差异
IF 2.1
International Journal of Dentistry Pub Date : 2023-12-07 DOI: 10.1155/2023/6698453
Turki S Alkhallagi, Meshari Alzahrani, Majed Ali Alkathiri, Ghadeer I. Basunbul, Amin Marghalani
{"title":"Vertical Marginal Discrepancy of a Monolithic Zirconia Crown with Different Cement Spaces","authors":"Turki S Alkhallagi, Meshari Alzahrani, Majed Ali Alkathiri, Ghadeer I. Basunbul, Amin Marghalani","doi":"10.1155/2023/6698453","DOIUrl":"https://doi.org/10.1155/2023/6698453","url":null,"abstract":"The long-term clinical success of indirect restorations highly depends on their marginal integrity. The cement space is an element that might affect the marginal integrity, but it can be altered during the configuring of the computer-assisted designing/computer-aided manufacturing (CAD–CAM) restoration. However, there is controversy in the literature regarding the effect of the cement space on the precision of zirconia crown marginal adaptation. The aim of this study was to measure the vertical marginal discrepancies between different cement thickness settings for CAD–CAM monolithic zirconia restorations. Material and Methods. An artificial mandibular right molar tooth mounted on a typodont was prepared for a zirconia crown using the standard method. The study sample consisted of 30 zirconia crowns (Zenostar Zr Translucent Zirconia, Weiland Dental, Germany) milled using an (iMes-iCore) milling machine. Each group of 10 crowns was designed with 30–50 and 70 μm spacer thicknesses. The vertical marginal adaptation at the center of the four different planes (mesial, distal, buccal, and palatal) was measured under a microscope at 40x magnification. A one-way analysis of variance test was used for statistical analysis. Results. The mean of Group 30 was 27.45; of Group 50 was 22.22; and of Group 70 was 22.90. There was no statistically significant difference between the groups (\u0000 \u0000 p\u0000 ≥\u0000 0.5\u0000 \u0000 ). Conclusions. The increase in the cement space up to 70 μm did not influence the vertical marginal adaptation of the monolithic zirconia crowns.","PeriodicalId":13947,"journal":{"name":"International Journal of Dentistry","volume":"38 24","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138592181","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}
引用次数: 0
Knowledge Enhancement of Elementary School Staff about Traumatic Dental Injuries Using Different Educational Tools 利用不同的教育工具提高小学教职员工对牙科创伤的认识
IF 2.1
International Journal of Dentistry Pub Date : 2023-12-06 DOI: 10.1155/2023/9167041
Mojtaba Salehi Karizmeh, Fatemeh Mozaffari, M. Mirzadeh, Razieh Jabbarian
{"title":"Knowledge Enhancement of Elementary School Staff about Traumatic Dental Injuries Using Different Educational Tools","authors":"Mojtaba Salehi Karizmeh, Fatemeh Mozaffari, M. Mirzadeh, Razieh Jabbarian","doi":"10.1155/2023/9167041","DOIUrl":"https://doi.org/10.1155/2023/9167041","url":null,"abstract":"Introduction. This study aimed to assess the efficacy of different educational tools for knowledge enhancement of elementary school staff about the management of traumatic dental injuries (TDIs). Materials and Methods. This quasi-experimental (pretest–posttest) study was conducted on 126 elementary school staff in Qazvin city, who were randomly selected by the cluster sampling in 2020. The baseline knowledge level of the participants about TDIs was assessed by an online questionnaire. Next, they were randomized into the poster, video clip, and no-intervention control groups (56 samples in each group). An informatory poster and a video clip about TDIs were sent to the participants in the first two groups, respectively, through the WhatsApp instant messaging app, and the knowledge level of the three groups was assessed again after 3 weeks. Data were analyzed by ANOVA, McNemar test, chi-square test, and t-test. Results. A significant correlation was noted between the baseline knowledge level of the participants and their educational level, participation in first aid courses covering TDIs, and history of encountering TDIs (\u0000 \u0000 P\u0000 <\u0000 0.05\u0000 \u0000 ). The knowledge level of the participants significantly increased after the intervention in the poster and video clip groups (\u0000 \u0000 P\u0000 <\u0000 0.05\u0000 \u0000 ). Knowledge enhancement was 43.26% in the poster and 36.61% in the video clip group (\u0000 \u0000 P\u0000 >\u0000 0.05\u0000 \u0000 ). Conclusion. Despite the low-baseline knowledge level of the elementary school staff in Qazvin city about TDIs, their knowledge level significantly improved after the educational interventions.","PeriodicalId":13947,"journal":{"name":"International Journal of Dentistry","volume":"52 7","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138596800","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}
引用次数: 0
Evaluation of Antimicrobial Activity and Cytotoxicity of an Epoxy Resin-Based Endodontic Sealer Containing Nanoparticles Amorphous Calcium Phosphate 评估含无定形磷酸钙纳米颗粒的环氧树脂牙髓封闭剂的抗菌活性和细胞毒性
IF 2.1
International Journal of Dentistry Pub Date : 2023-12-05 DOI: 10.1155/2023/8717655
Bilal H. Ibrahim, Hussain Al-Huwaizi
{"title":"Evaluation of Antimicrobial Activity and Cytotoxicity of an Epoxy Resin-Based Endodontic Sealer Containing Nanoparticles Amorphous Calcium Phosphate","authors":"Bilal H. Ibrahim, Hussain Al-Huwaizi","doi":"10.1155/2023/8717655","DOIUrl":"https://doi.org/10.1155/2023/8717655","url":null,"abstract":"Background The main cause of posttreatment disease in endodontics is the remaining of microorganisms within the root canal walls after endodontic therapy. Therefore, it is essential to use root canal sealers with potent antibacterial properties. These sealers play a vital role in eradicating any remaining microorganisms and preventing recontamination, especially in situations where there might be microleakage. Aim The objective of this research was to examine the antimicrobial properties of epoxy root canal sealers containing nanoparticle amorphous calcium phosphate (NACP) against planktonic Enterococcus faecalis in a controlled laboratory environment. Furthermore, the study aimed to assess the potential cytotoxic effects of these sealers. Method In order to determine the antimicrobial activity, the epoxy resin sealer (AH Plus, Dentsply, Germany) was supplemented with NACP from Sigma–Aldrich, at a concentration of 3wt.%, as per the previous flowability tests. The agar well diffusion assay method was employed to evaluate the antibacterial efficacy. For this, cultured plates (n = 8) were prepared, with each plate containing three wells: one with AH Plus, one with AH Plus + NACP, and one with NACP alone. Subsequently, the plates were sited at 37°C in an incubator and allowed to incubate overnight. The width of the inhibition zones was then analyzed and recorded by the SPSS statistical software package (Version 20.0 for Windows, SPSS, Chicago, IL, USA). The cytotoxicity of the NACP incorporated AH Plus and AH Plus sealers were tested indirectly by MTT assay and directly by the multiparametric high content screening toxicology assay using fibroblast-like cells as cell lines. Results AH Plus + NACP showed a higher antimicrobial activity than AH Plus with significant difference (P < 0.0001). Both materials showed nonsignificant difference compared to negative control, which indicated lower cytotoxicities. For AH Plus, P=0.3599, 0.5959,  and 0.4071, with time intervals 24, 72, and 168 hr, respectively. For AH Plus + NACP, P=0.4386, 0.6182,  and 0.2080, with 24, 72, and 168 hr, respectively. Conclusions NACP incorporation with epoxy resin sealer AH PLUS had a higher antimicrobial activity with lower cytotoxic effect indicating their potential therapeutic values.","PeriodicalId":13947,"journal":{"name":"International Journal of Dentistry","volume":"83 5","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138598195","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}
引用次数: 0
Brand Experience and Customer Loyalty in Dentistry: The Role of Perceived Brand Authenticity. 品牌体验与牙科顾客忠诚:感知品牌真实性的作用。
IF 2.1
International Journal of Dentistry Pub Date : 2023-11-24 eCollection Date: 2023-01-01 DOI: 10.1155/2023/2541243
Ghaith Al-Abdallah, Jegr Ababakr
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