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Comparison of the Stress Analysis To Obtain The Tensile Properties of Three Type-1 and Type-3 Collagen Membranes 三种1型和3型胶原膜拉伸性能的应力分析比较
Pub Date : 2023-09-30 DOI: 10.37191/mapsci-2582-3736-5(3)-154
Leandro Lécio de Lima Sousa
The aim of this study is to evaluate the mechanical tensile strength for control and specification of three collagen membranes, cross-linked and non-cross-linked, as well as their stress–strain curve. The treatment of sequelae caused by destruction of the periodontal structure resulting from periodontal disease, especially the treatment of alveolar bone defects, known as guided bone regeneration (GBR), is generally aimed at restoring the periodontal insertion apparatus, with the possibility of structural support of membranes and/or barrier, and has been widely studied. Depending on the reaction to their biological environment, membranes can be grouped into two types: resorbable membranes, which, due to biological degradation, induce a tissue response that can negatively affect wound healing and complicate regeneration; and non-resorbable membranes, which have proven to be effective in preventing the invasion of connective and epithelial tissue in the healing area. Resorbable membranes have a high potential for application in periodontal and peri implant regeneration, which indicates collagen as the main extracellular component involved in processes, including cell migration and differentiation. Descriptive statistics of quantitative variables were made by calculating the mean, standard deviation, and standard error; the number of observations was also considered. Statistical inference was applied based on one-way analysis of variance (ANOVA) in the comparison of means in three types of membranes (Bioguide, Jason, and Lumina Dermal) for four dependent variables: elastic modulus (GPa), maximum load (N), breaking stress (MPa), and breaking strain (%). The mechanical characteristics of collagen membranes can be influenced by the action of glutaraldehyde, creating a cross-linking structure in the collagen matrix, thereby substantially increasing the mechanical properties of the membrane; on the other hand, this also increases cytotoxicity. Otherwise, the search for natural collagen membranes with good fixation properties is difficult, due to membrane standardization. Nonetheless, through dimensional and mechanical measurements, it is possible to mechanically qualify collagen membranes and compare them. When assessing the physical stress and tensile properties of the three membranes, high levels of mechanical strength were observed, especially in the Lumina Dermal membrane by Criteria Biomateriais, which presents higher rates based on the methodologies and tests applied, mainly when compared to other samples.
本研究的目的是评价交联和非交联三种胶原膜的机械拉伸强度控制和规格,以及它们的应力-应变曲线。牙周病引起的牙周结构破坏引起的后遗症的治疗,特别是牙槽骨缺损的治疗,被称为引导骨再生(GBR),一般以恢复牙周插入器为目标,具有膜和/或屏障的结构支持的可能性,并已被广泛研究。根据对生物环境的反应,膜可分为两种类型:可吸收膜,由于生物降解,诱导组织反应,可能对伤口愈合产生负面影响,使再生复杂化;不可吸收膜,已被证明能有效防止愈合区域的结缔组织和上皮组织的入侵。可吸收膜在牙周和种植体周围再生中具有很高的应用潜力,这表明胶原蛋白是参与细胞迁移和分化等过程的主要细胞外成分。通过计算均值、标准差和标准误差对定量变量进行描述性统计;还考虑了观察的次数。采用单因素方差分析(ANOVA)比较三种膜(Bioguide、Jason和Lumina Dermal)弹性模量(GPa)、最大载荷(N)、断裂应力(MPa)和断裂应变(%)四个因变量的均值。胶原膜的力学特性可受戊二醛作用的影响,在胶原基质中产生交联结构,从而大幅度提高膜的力学性能;另一方面,这也增加了细胞毒性。否则,由于膜的标准化,很难寻找具有良好固定性能的天然胶原膜。尽管如此,通过尺寸和机械测量,有可能对胶原膜进行机械鉴定并进行比较。在评估三种膜的物理应力和拉伸性能时,观察到高水平的机械强度,特别是在标准生物材料中,根据所采用的方法和测试,其表现出更高的比率,主要是与其他样品相比。
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引用次数: 0
A Systematic Review of The Relationship Between Parental Stress and Early Childhood Caries 父母压力与幼儿龋病关系的系统综述
Pub Date : 2023-09-30 DOI: 10.37191/mapsci-2582-3736-5(2)-151
Sheetal Kalmadka
Background: Until now, there has been a lack of comprehensive evaluation to establish the extent to which parental stress affects children's oral health, such as the occurrence of dental caries. This study aimed to explore the relationship between parental stress and early childhood caries (ECC). Objective: The objective of this review was to evaluate the association between ECC development and stress-related factors, including parental stress. Method: A comprehensive web-based search identified 12 studies that examined parental stress and Early Childhood Caries. Results: The research examined several areas related to parenting, including satisfaction with parenting, parenting-related stress, the parent-child relationship, and specific parenting practices. Out of 12 studies, 10 studies showed that there is a correlation between parental stress and the occurrence of early childhood caries, and 2 studies showed there is no association. Conclusions: The systematic review focuses on the work of researchers who have studied parental stress and how it is related to the occurrence of early childhood caries. A consistent association between parental attitude and oral health outcomes in children has been demonstrated by these studies. Despite several studies on the relationship between parental stress and early childhood caries (ECC), the overall literature is limited by methodological constraints that hinder the ability to establish a causal link between parental stress and ECC. Further study is also needed to advance our current understanding of the association of Early Childhood Caries and Parental Stress
背景:到目前为止,还缺乏全面的评估来确定父母压力对儿童口腔健康的影响程度,如龋齿的发生。本研究旨在探讨父母压力与儿童早期龋病(ECC)的关系。目的:本综述的目的是评估ECC发展与压力相关因素(包括父母压力)之间的关系。方法:一个全面的网络搜索确定了12项研究,研究了父母压力和儿童早期龋齿。结果:该研究调查了与养育子女有关的几个方面,包括对养育子女的满意度、与养育子女有关的压力、亲子关系和具体的养育子女的做法。在12项研究中,10项研究表明父母压力与儿童早期龋齿的发生有相关性,2项研究表明没有相关性。结论:本系统综述的重点是研究父母压力及其与幼儿龋齿发生关系的研究人员的工作。这些研究表明,父母的态度与儿童口腔健康结果之间存在一致的联系。尽管有几项关于父母压力与儿童早期龋齿(ECC)之间关系的研究,但总体文献受到方法限制,阻碍了建立父母压力与ECC之间因果关系的能力。还需要进一步的研究来提高我们目前对儿童早期龋齿和父母压力之间关系的理解
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引用次数: 0
Exploring Periodontics specialty: A Vision for the Future (Opinion) 探索牙周病专业:对未来的展望(意见)
Pub Date : 2023-09-30 DOI: 10.37191/mapsci-2582-3736-5(2)-152
Nada Hashim
Periodontics is a dynamic profession characterized by complex treatment planning and a diverse spectrum of treatment modalities ranging from traditional to novel treatments. It is a separate branch of dentistry that allows for both tooth preservation and effective implant-based tooth replacement. The future of periodontics is promising and exciting, but it is unlikely to happen without major effort and obstacles.
牙周病是一个充满活力的专业,其特点是复杂的治疗计划和从传统到新型治疗方法的多种治疗方式。它是牙科的一个独立分支,允许牙齿保存和有效的种植牙替代。牙周病的未来是充满希望和令人兴奋的,但如果没有重大的努力和障碍,这是不可能发生的。
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引用次数: 0
Statistical Analysis and Mathematical Modelling for the Utilization and Efficacy of Menthol Crystals Vapor Inhalation for the Control of the Covid-19 Pandemic 薄荷醇晶体蒸汽吸入对新冠肺炎疫情控制效果的统计分析与数学建模
Pub Date : 2023-09-30 DOI: 10.37191/mapsci-2582-3736-5(1)-148
Christopher Ogunsalu
Aim: To find out the utilization and efficacy of menthol crystal and its vapor in Jamaica since the validating clinical trial for its use in the prevention and cure of COVID-19 and by extension utilize by extrapolation and mathematical modeling the possible effect of its utilization on the hospitalization, morbidity and mortality from COVID-19. Method: The aim of this paper is to utilize a purposefully designed questionnaire called the Menthol crystal utilization questionnaire which is to be completed by pharmacists in Montego Bay Jamaica, and to be subjected to statistical analysis so as to appreciate at a glance whether there has been an increase in the usage of menthol crystal through purchases after a clinical trial designed to validate the use of menthol as a drug or chemical substance that can prevent the acquisition of COVID-19 and that also cure the early diagnosed COVID-19. This questionnaire-based research also looks into whether menthol crystal is a prescription drug in Jamaica or not and additionally it is designed to evaluate the complications and side effects if any following the use if menthol during the pandemic. The statistical outcome was then subjected to mathematical model for efficacy function of sale volume and the period of menthol crystal utilization for the treatment and control of COVID-19. Conclusion: All the respondent pharmacies declared that menthol crystals are not a prescription medical substance. They all also responded that there has been an increase usage of menthol by customers, which is identified by an unusually high, though variable increase in purchase ranging from 10-20% to 90-100. None of these respondents identified any side effect or complication following the use of menthol crystal.
目的:了解薄荷醇晶体及其蒸汽在牙买加防治新型冠状病毒肺炎临床试验验证以来的使用情况和疗效,并通过外推法和数学模型分析其使用对新型冠状病毒肺炎住院率、发病率和死亡率可能产生的影响。方法:本文的目的是利用一份有目的设计的问卷,名为薄荷醇晶体利用问卷,由牙买加蒙特哥湾的药剂师完成。并进行统计分析,以便在临床试验后,通过购买薄荷醇晶体的使用是否有所增加,该临床试验旨在验证薄荷醇作为药物或化学物质的使用,可以防止获得COVID-19并治愈早期诊断的COVID-19。这项基于问卷的研究还调查了薄荷醇晶体在牙买加是否是处方药,此外,它旨在评估在大流行期间使用薄荷醇后的并发症和副作用(如果有的话)。将统计结果应用于薄荷醇晶体治疗和控制COVID-19的销量和使用周期功效函数的数学模型。结论:所有受访药店均声明薄荷醇晶体不是处方药。他们也都回应说,顾客对薄荷醇的使用量有所增加,购买量的增加幅度从10-20%到90- 100%不等,但可以确定的是,薄荷醇的使用量异常高。这些应答者均未发现使用薄荷醇晶体后的任何副作用或并发症。
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引用次数: 0
Treatments For Painful Post-Traumatic Trigeminal Neuropathy: A Literature Review and Clinical Case Report 疼痛性创伤后三叉神经病变的治疗:文献回顾及临床病例报告
Pub Date : 2023-09-30 DOI: 10.37191/mapsci-2582-3736-5(2)-153
Luiza P. Zuba
Trigeminal neuralgia (NT), also known as Fortherghill's disease or Prosopalgia Dolorosa (LEITÃO & FIGUEIRÊDO, 1985), is a disease mainly affected by middle-aged women, characterized by paroxysms of pain, shock and burning. During an episode of pain, the muscles of the face go into a state of intense contraction. Treatments range from laser therapy, electro acupuncture, use of anticonvulsants to surgeries, indicated for patients with failed pharmacological therapy (30%) and those who had a good initial response but became refractory to treatment over time. The percutaneous procedures most used today are radiofrequency thermocoagulation, glycerol rhizolysis (MENESES et al., 1994) and balloon decompression (HOLZER et al., 1992). The objective of this work is to refer to the different types of treatments for the disease, through a literature review and a clinical case report.
三叉神经痛(NT),也被称为fortherhill病或Prosopalgia Dolorosa (LEITÃO &FIGUEIRÊDO, 1985),是一种主要影响中年妇女的疾病,其特点是阵发性疼痛、休克和灼烧。在疼痛发作时,面部肌肉进入剧烈收缩状态。治疗范围从激光治疗、电针、使用抗惊厥药到手术,适用于药物治疗失败的患者(30%)和最初反应良好但随着时间的推移变得难以治疗的患者。目前最常用的经皮手术是射频热凝、甘油根茎溶解(MENESES等,1994)和球囊减压(HOLZER等,1992)。这项工作的目的是参考不同类型的治疗疾病,通过文献综述和临床病例报告。
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引用次数: 0
Melanotic Neuroectodermal Tumor of Infancy: A Rare Case Report and Review 婴儿期黑色素样神经外胚层肿瘤1例报告及复习
Pub Date : 2023-09-30 DOI: 10.37191/mapsci-2582-3736-5(2)-150
Osama Khalifa
The melanotic neuroectodermal tumor of infancy is a benign but locally aggressive vanillylmandelic acid (VMA) producing neoplasm that originates from neural crest cells. It predominantly affects infants and is most common in the maxilla. Due the anatomical complexity of the head and neck region and the pathological nature of this tumor entity, the surgical therapeutic management poses considerable challenges upon surgeons and patients. The purpose of this article is to report a rare case of a rapidly growing mass, diagnosed as melanotic neuroectodermal tumor of infancy (MNTI), in the right maxilla in a 3-month-old boy which was treated by a radical local resection and followed up after one year without any clinical and radiographical signs of recurrence.
婴儿期黑色素神经外胚层肿瘤是一种良性但局部侵袭性的香草扁桃酸(VMA)产生肿瘤,起源于神经嵴细胞。它主要影响婴儿,最常见于上颌骨。由于头颈部的解剖复杂性和这种肿瘤实体的病理性质,手术治疗管理对外科医生和患者提出了相当大的挑战。本文的目的是报告一例罕见的快速生长的肿块,诊断为婴儿期黑色素神经外胚层肿瘤(MNTI),在3个月大的男孩右上颌接受根治性局部切除治疗,并在一年后随访,无任何临床和影像学复发迹象。
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引用次数: 0
Clinical Dentistry and Oral Cancer Screening 临床牙科及口腔癌筛检
Pub Date : 2023-09-30 DOI: 10.37191/mapsci-2582-3736-5(2)-149
Liviu Steier
The In accordance with the Center for Disease Control and Prevention (CDC) and the World Health Organization (WHO), from September 2019, the American Dental Association (ADA) now recommends dentists to routinely conduct oral and oropharyngeal cancer screening on all patients.
根据美国疾病控制与预防中心(CDC)和世界卫生组织(WHO)的规定,从2019年9月起,美国牙科协会(ADA)现在建议牙医对所有患者定期进行口腔和口咽癌筛查。
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引用次数: 0
Evolution or Revolution: Is Robotics the New Age Digital Shift in Dental Education? 进化还是革命:机器人是牙科教育的新时代数字化转变吗?
Pub Date : 2023-01-01 DOI: 10.37191/mapsci-2582-3736-5(1)-147
T. Wiedemann
For years, technology has been the primary driver of dentistry’s evolution. Advancements in radiology, biomaterials, scanning, and milling technologies have forged a path for clinicians to expand their scope of practice, offering patients more predictable and accepted outcomes, with shortened chairside times needed for care delivery.
多年来,技术一直是牙科发展的主要推动力。放射学、生物材料、扫描和铣削技术的进步为临床医生扩大其实践范围开辟了一条道路,为患者提供更可预测和可接受的结果,缩短了护理所需的椅边时间。
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引用次数: 0
Oral Cancer and the Tragedy of Thinking Inside the Box 口腔癌症与盒内思维的悲剧
Pub Date : 2023-01-01 DOI: 10.37191/mapsci-2582-3736-5(1)-146
L. Steier
Analyzing The National Cancer Data Base, Fujiwara et al. (2016) concluded that oral cancer treatment delay significantly impacts overall survival [2]. On December 26th, 2022, the following statement could be identified on the website of the National Cancer Institute: “There is inadequate evidence to establish whether screening would result in a decrease in mortality from the oral cavity and nasopharyngeal cancers” [3]
Fujiwara等(2016)分析The National Cancer Data Base,得出口腔癌治疗延迟显著影响总生存期的结论。2022年12月26日,在美国国家癌症研究所的网站上可以看到以下声明:“没有足够的证据证明筛查是否会导致口腔癌和鼻咽癌死亡率的降低”[3]
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引用次数: 0
Intra-lesional Steroid Treatment of Mandibular Central Giant Cell Granuloma 病灶内类固醇治疗下颌骨中央巨细胞肉芽肿
Pub Date : 2022-11-10 DOI: 10.37191/mapsci-2582-3736-4(4)-144
Mohammed H. Al-Bodbaij
Central giant cell granuloma (CGCG) is a non-neoplastic benign lesion. CGCG can be treated by various modalities of which surgery is the most common treatment but have possible variable recurrence rates. Other treatment modalities like calcitonin and intralesional steroid have showed good long-term result in many clinical cases. As CGCG occurs commonly in young adults and children of less than 30 years, noon-surgical treatment is a better and least invasive option. The case of an 18-year-old Saudi female is represented with an aggressive mandible CGCG which has been treated with steroid intralesional injections on a weekly basis for six weeks that has been observed as a good treatment option for CGCG clinically.
中央巨细胞肉芽肿(CGCG)是一种非肿瘤性良性病变。CGCG可以通过各种方式进行治疗,其中手术是最常见的治疗方法,但可能有不同的复发率。其他治疗方式,如降钙素和病灶内类固醇,在许多临床病例中显示出良好的长期效果。由于CGCG常见于年轻人和30岁以下的儿童,中午手术治疗是一种更好、微创的选择。一名18岁沙特女性的病例表现为侵袭性下颌骨CGCG,该患者每周接受类固醇病灶内注射治疗,持续六周,这在临床上被视为CGCG的良好治疗选择。
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引用次数: 0
期刊
Journal of dentistry and oral sciences
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