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Comparison between microporous and nanoporous orthodontic miniscrews : An experimental study in rabbits. 微孔和纳米多孔正畸微型螺钉的比较：兔子实验研究。
IF 1.7
The Journal of the Arkansas Medical Society Pub Date : 2024-01-01 Epub Date: 2022-05-20 DOI: 10.1007/s00056-022-00398-3
Yueh-Tse Lee, Eric Jein-Wein Liou, Sinn-Wen Chen
{"title":"Comparison between microporous and nanoporous orthodontic miniscrews : An experimental study in rabbits.","authors":"Yueh-Tse Lee, Eric Jein-Wein Liou, Sinn-Wen Chen","doi":"10.1007/s00056-022-00398-3","DOIUrl":"10.1007/s00056-022-00398-3","url":null,"abstract":"<p><strong>Purpose: </strong>Surface characteristics of orthodontic miniscrews might affect survival rates and removal torque values (RTVs). This experimental study aimed to clarify whether and why a microporous or nanoporous surface promotes higher survival rates and RTVs for orthodontic miniscrews.</p><p><strong>Methods: </strong>Using a split-leg design, one set each of nonporous (sham control, n = 24) and microporous (control, n = 6), and three sets of nanoporous (experimental, n = 6 per set) miniscrews were implanted in the tibias of 12 New Zealand rabbits and immediately loaded with 1.5 N nickel-titanium coil springs for 12 weeks. The surface morphology, micropores, and nanotube diameters of the miniscrews were examined using scanning electron microscopy and field-emission scanning electron microscopy. The surface composition and thickness were determined using Auger electron spectroscopy. The survival rates and RTVs of each set were assessed.</p><p><strong>Results: </strong>The nanoporous miniscrews had higher survival rates, RTVs (p < 0.001), and thicker nanotube oxide thicknesses (p < 0.001) than the nonporous and microporous miniscrews. The nonporous and microporous miniscrews had no nanotube structures. The surface oxide composition was titanium dioxide (TiO<sub>2</sub>). The threshold RTV, TiO<sub>2</sub> thickness, and nanotube diameter of nanoporous miniscrews needed to promote the experimental survival rate to 100% was determined to be 6.6 ± 0.8 N-cm (p < 0.05), 22.5 ± 4.8 nm (p < 0.05), and 17.6 ± 2.3 nm or above, respectively.</p><p><strong>Conclusion: </strong>Nanoporous surfaces promoted higher survival rates and RTVs than microporous miniscrews. This could be due to TiO<sub>2</sub> nanotube structures with thicker oxide layers in nanoporous miniscrews.</p>","PeriodicalId":75122,"journal":{"name":"The Journal of the Arkansas Medical Society","volume":"74 3 1","pages":"1-12"},"PeriodicalIF":1.7,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83534531","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
Demonstration of a simple do-it-yourself test of mask barrier function using widely available commercial products. 演示一个简单的自己做测试的口罩屏障功能，使用广泛可用的商业产品。
The Journal of the Arkansas Medical Society Pub Date : 2021-06-01
Marissa K Johnston, Mitchell R McGill
{"title":"Demonstration of a simple do-it-yourself test of mask barrier function using widely available commercial products.","authors":"Marissa K Johnston,&nbsp;Mitchell R McGill","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>By December 2020, SARS-CoV-2 caused the deaths of nearly 1.5 million people worldwide. A common strategy to mitigate spread of the virus is mask wearing. Considerable data demonstrate that masks can create an effective barrier to the respiratory droplets that can carry the virus. However, the effectiveness of consumer masks for this purpose varies, and there are currently no minimum standards that mask manufacturers must meet. Therefore, a need exists for an at-home test of mask barrier function. Here, we demonstrate a simple test to compare the function of selected masks using widely available materials and resources.</p>","PeriodicalId":75122,"journal":{"name":"The Journal of the Arkansas Medical Society","volume":"117 12","pages":"282-283"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8603387/pdf/nihms-1755003.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39643360","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
Mountain Sickness 高山病
The Journal of the Arkansas Medical Society Pub Date : 2021-01-01 DOI: 10.1542/ppe_schmitt_297
{"title":"Mountain Sickness","authors":"","doi":"10.1542/ppe_schmitt_297","DOIUrl":"https://doi.org/10.1542/ppe_schmitt_297","url":null,"abstract":"","PeriodicalId":75122,"journal":{"name":"The Journal of the Arkansas Medical Society","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67569447","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
Characteristics of E-Cigarette, or Vaping, Product Use-Associated Lung Injury (EVALI) Patients. 电子烟或电子烟产品使用相关肺损伤(EVALI)患者的特征
The Journal of the Arkansas Medical Society Pub Date : 2020-11-01
Allison E James, Brandy Sutphin, Patrick Fleming, Donald McCormick, Appathurai Balamurugan
{"title":"Characteristics of E-Cigarette, or Vaping, Product Use-Associated Lung Injury (EVALI) Patients.","authors":"Allison E James,&nbsp;Brandy Sutphin,&nbsp;Patrick Fleming,&nbsp;Donald McCormick,&nbsp;Appathurai Balamurugan","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>During August-December 2019, 23 persons who received a diagnosis of e-cigarette, or vaping, product use-associated lung injury (EVALI) were reported to the Arkansas Department of Health (ADH); none died. Among Arkansas EVALI patients, most were aged <25 years and white; two-thirds were male. Approximately half of Arkansas EVALI patients were admitted to intensive care units. Among 18 patients who were interviewed, 61% reported using both nicotine and tetrahydrocannabinol in an e-cigarette, or vaping, device during the 90 days preceding illness onset. Clinicians should remain vigilant for EVALI and continue to report cases to ADH.</p>","PeriodicalId":75122,"journal":{"name":"The Journal of the Arkansas Medical Society","volume":"117 5","pages":"110-112"},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10174092/pdf/nihms-1703187.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9467158","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
Walking. 散步。
The Journal of the Arkansas Medical Society Pub Date : 2020-02-07 DOI: 10.32388/7owx6w
H. A. Grimes
{"title":"Walking.","authors":"H. A. Grimes","doi":"10.32388/7owx6w","DOIUrl":"https://doi.org/10.32388/7owx6w","url":null,"abstract":"","PeriodicalId":75122,"journal":{"name":"The Journal of the Arkansas Medical Society","volume":"83 4 1","pages":"175-6"},"PeriodicalIF":0.0,"publicationDate":"2020-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41994093","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
Atrial Myxoma 心房粘液瘤
The Journal of the Arkansas Medical Society Pub Date : 2020-02-07 DOI: 10.32388/5u98rw
{"title":"Atrial Myxoma","authors":"","doi":"10.32388/5u98rw","DOIUrl":"https://doi.org/10.32388/5u98rw","url":null,"abstract":"","PeriodicalId":75122,"journal":{"name":"The Journal of the Arkansas Medical Society","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69621236","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
Myocardial infarction. 心肌梗死。
The Journal of the Arkansas Medical Society Pub Date : 2020-02-07 DOI: 10.32388/oyot3h
A. Kahn
{"title":"Myocardial infarction.","authors":"A. Kahn","doi":"10.32388/oyot3h","DOIUrl":"https://doi.org/10.32388/oyot3h","url":null,"abstract":"","PeriodicalId":75122,"journal":{"name":"The Journal of the Arkansas Medical Society","volume":"76 5 1","pages":"218-9"},"PeriodicalIF":0.0,"publicationDate":"2020-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42382755","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
AIDS related lymphoma. 艾滋病相关淋巴瘤。
The Journal of the Arkansas Medical Society Pub Date : 2020-02-07 DOI: 10.32388/7hulpg
J. Beck
{"title":"AIDS related lymphoma.","authors":"J. Beck","doi":"10.32388/7hulpg","DOIUrl":"https://doi.org/10.32388/7hulpg","url":null,"abstract":"An aggressive lymphoma that develops in HIV-positive patients. There is a significant increase in the incidence of lymphomas associated with the AIDS epidemic. These lymphomas are usually extranodal, most often express a B-cell phenotype and morphologically are classified as Burkitt, diffuse large B-cell, and Hodgkin lymphomas. The prognosis is closely related to the severity of immunodeficiency.","PeriodicalId":75122,"journal":{"name":"The Journal of the Arkansas Medical Society","volume":"87 8 1","pages":"327-8"},"PeriodicalIF":0.0,"publicationDate":"2020-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41860642","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
Plastic surgery. 整形手术。
The Journal of the Arkansas Medical Society Pub Date : 2019-05-20 DOI: 10.1201/9780429091513-7
J. Stuckey
{"title":"Plastic surgery.","authors":"J. Stuckey","doi":"10.1201/9780429091513-7","DOIUrl":"https://doi.org/10.1201/9780429091513-7","url":null,"abstract":"","PeriodicalId":75122,"journal":{"name":"The Journal of the Arkansas Medical Society","volume":"60 1","pages":"103-4"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49486024","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
Lead poisoning. 铅中毒。
The Journal of the Arkansas Medical Society Pub Date : 2019-04-01 DOI: 10.1891/9780826179357.0229
I. L. Millard
{"title":"Lead poisoning.","authors":"I. L. Millard","doi":"10.1891/9780826179357.0229","DOIUrl":"https://doi.org/10.1891/9780826179357.0229","url":null,"abstract":"","PeriodicalId":75122,"journal":{"name":"The Journal of the Arkansas Medical Society","volume":"82 6 1","pages":"263-4"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49612403","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
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