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Cervical and craniofacial morphology in asthmatic children: A cephalometric study 哮喘儿童的颈部和颅面形态:头颅测量研究
Q1 Medicine Pub Date : 2024-05-24 DOI: 10.1016/j.jobcr.2024.05.003
Prashanth S, B. Nandlal
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引用次数: 0
Dentin-derived alveolar bone graft for alveolar augmentation: A systematic review 牙本质牙槽骨移植用于牙槽骨增量:系统性综述
Q1 Medicine Pub Date : 2024-05-24 DOI: 10.1016/j.jobcr.2024.05.005
Dedy Agoes Mahendra , Kavanila Bilbalqish , Alexander Patera Nugraha , Arief Cahyanto , Kaushik Sengupta , Kamal Hanna , Asti Meizarini , Ninuk Hariyani

Introduction

Application of alveolar bone graft (ABG) in alveolar augmentation is done to prevent excessive bone resorption due to tooth extraction, missing teeth, or other diseases/conditions affecting the alveolar bone. The use of autogenous dentin-derived ABG has been considered as the composition of dentin appears to be nearly analogous to that of bone.

Objective

This systematic review aims to assess the efficacy of dentin-derived ABG for alveolar augmentation of post-extraction sockets or other alveolar bone defects by evaluating volume gain and histomorphometric data.

Material and methods

A search of systematic literature was conducted in Pubmed, Scopus, Web of Science, and Embase from database inception to October 2023. The review included both randomized controlled trials (RCT), pilot studies, clinical trials, and retrospective studies reporting on dentin-derived ABG use for alveolar augmentation.

Results

Overall, 298 articles were obtained from the initial search. From these articles, 21 articles met the inclusion criteria and were included for descriptive analysis. All of the studies indicated low risk of bias. Studies of dentin-derived ABG, which used bone-derived grafts as the control group, have shown significantly higher percentages of new bone formation, gain in vertical and horizontal dimensions, and less reduction in dimensions.

Conclusions

Dentin-derived ABG was effective in volume maintenance, indicating promising results via histomorphometric and radiographic analysis.

导言在牙槽骨增量中应用牙槽骨移植(ABG)是为了防止因拔牙、缺牙或其他影响牙槽骨的疾病/病症导致的骨质过度吸收。本系统性综述旨在通过评估体积增大和组织形态计量数据,评估牙本质来源的 ABG 在拔牙后牙槽骨或其他牙槽骨缺损的牙槽骨增量中的疗效。综述包括随机对照试验 (RCT)、试点研究、临床试验以及报告牙本质衍生 ABG 用于牙槽增量的回顾性研究。在这些文章中,有 21 篇符合纳入标准,并被纳入进行描述性分析。所有研究均显示偏倚风险较低。牙本质衍生 ABG 的研究使用骨源性移植物作为对照组,结果显示新骨形成的百分比明显更高,垂直和水平尺寸增加,尺寸减少。
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引用次数: 0
Comparative evaluation of the efficacy of Triphala mouthwash and Curcumin mouthwash in the treatment of gingivitis – A randomized controlled study 三叶草漱口水和姜黄素漱口水治疗牙龈炎疗效的比较评估--随机对照研究
Q1 Medicine Pub Date : 2024-05-24 DOI: 10.1016/j.jobcr.2024.05.002
S. Divya Bharathi , S.P. Aiswarya , Archana R. Sankar

Background

Numerous studies on Triphala and Curcumin mouthwashes were analyzed individually and no study has compared the efficacy of Triphala mouthwash to Curcumin mouthwash in the management of gingivitis. Although various mouthwashes have shown reduction of plaque and gingivitis the search is still on for an ideal mouthwash with minimum side effects and better patient acceptance.

Objectives

To access the efficacy of all the mouthwashes in the management of gingivitis.

Methods

By purposive sampling, 81 patients of both sexes with gingivitis were randomized by lottery method into 3 groups - A, B and C. Group A received scaling and Triphala mouthwash, Group B received scaling and Curcumin mouthwash and Group C underwent scaling and received Chlorhexidine mouthwash. Oral hygiene was assessed using Plaque, Gingival and Bleeding indices at baseline,7th day and 14th day. The inter-group comparisons were analysed using One-way analysis of variance (ANOVA) and multiple comparisons using Tukey's Honest significant difference test (α = 0.05) and the intra-group comparisons for the indices across various time periods within each group were analysed using Repeated-measures ANOVA and Bonferroni-adjusted pairwise comparisons post hoc test (α = 0.05). The statistical significance was set at p ≤ 0.05.

Results

The study has shown that herbal mouthwashes are as effective as chlorhexidine in treating gingivitis although curcumin mouthwash showed a greater potential in reducing gingival inflammation.

Conclusion

Both Triphala and Curcumin mouthwashes were proven to be equally effective in reducing plaque, gingival and bleeding scores, although curcumin was better in reducing gingival inflammation. Hence herbal mouthwashes such as Triphala and Curcumin with no side effects can be considered as an alternative mouthwash to chlorhexidine.

背景对三黄酚醛漱口水和姜黄素漱口水的大量研究进行了单独分析,但还没有研究对三黄酚醛漱口水和姜黄素漱口水在治疗牙龈炎方面的功效进行比较。尽管各种漱口水都能减少牙菌斑和牙龈炎,但人们仍在寻找一种副作用最小、患者接受度更高的理想漱口水。方法通过有目的的抽样,将 81 名患有牙龈炎的男女患者以抽签方式随机分为 A、B 和 C 三组。A 组接受洗牙和 Triphala 漱口水,B 组接受洗牙和姜黄素漱口水,C 组接受洗牙和洗必泰漱口水。分别在基线、第 7 天和第 14 天使用牙菌斑、牙龈和出血指数对口腔卫生进行评估。组间比较采用单因素方差分析(ANOVA),多重比较采用 Tukey's 诚实显著差异检验(α = 0.05),各组内不同时间段的指数组内比较采用重复测量方差分析和 Bonferroni-adjusted 配对比较事后检验(α = 0.05)。研究结果表明,草药漱口水在治疗牙龈炎方面与洗必泰一样有效,但姜黄素漱口水在减轻牙龈炎症方面表现出更大的潜力。结论事实证明,Triphala 和姜黄素漱口水在减少牙菌斑、牙龈和出血评分方面同样有效,但姜黄素在减轻牙龈炎症方面表现更好。因此,Triphala 和姜黄素等无副作用的草药漱口水可作为洗必泰的替代漱口水。
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引用次数: 0
Tumor thickness and depth of invasion in squamous cell carcinoma of tongue as indicators of the loco-regional spread of the disease: A preliminary study 以舌鳞癌的肿瘤厚度和浸润深度作为疾病局部区域扩散的指标:初步研究
Q1 Medicine Pub Date : 2024-05-24 DOI: 10.1016/j.jobcr.2024.05.006
Rupsa Das , Satya Ranjan Misra , Satya Sundar Gajendra Mohapatra , Pravakar Bahinipati , Smita Rani Priyadarshini , Alkananda Sahoo , Debahuti Mishra , Anamika Rai

Background

Magnetic resonance imaging (MRI) is a routinely used imaging modality for pre-treatment radiologic evaluation of tongue carcinoma, providing accurate information regarding the extent of the disease.

Aims and objectives

To investigate the role of MRI-derived depth of invasion and tumor thickness evaluation in squamous cell carcinoma of the tongue, and to assess if any correlation exists between depth of invasion, tumor thickness, nodal metastasis, muscles, and space involved.

Materials and methods

Thirty-three patients with oral squamous cell carcinoma of the tongue who had undergone pre-treatment MRI and excisional biopsy were included. The tumor thickness (TT) and depth of invasion (DOI) were evaluated on MRI and histopathologic images.

Result

The relation between different methodologies for assessing showed a very high correlation for the tumor tissue thickness (r = 0.99, p < 0.05) and depth of invasion (r = 0.82, p < 0.05). The tumor thickness and the depth of invasion increased with the loss of differentiation in the carcinoma histopathologically. As the depth of invasion increases, the extent of the spread of the carcinoma to tongue musculature, lingual septum, and spaces also increases.

Conclusion

The present study has depicted a high correlation between the tumor thickness and the depth of invasion between MRI and histopathological findings and is the first of its kind to correlate DOI to the invasiveness of the disease.

背景磁共振成像(MRI)是舌癌治疗前放射学评估的常规成像模式,可提供有关疾病范围的准确信息。材料和方法纳入33例接受过治疗前磁共振成像和切除活检的口腔舌鳞状细胞癌患者。结果不同评估方法之间的关系显示,肿瘤组织厚度(r = 0.99,p < 0.05)和浸润深度(r = 0.82,p < 0.05)具有很高的相关性。从组织病理学角度看,肿瘤厚度和浸润深度随着癌组织分化的消失而增加。结论本研究描述了磁共振成像和组织病理学结果之间肿瘤厚度和侵袭深度的高度相关性,是同类研究中首次将 DOI 与疾病的侵袭性相关联。
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引用次数: 0
The effect of cacao bean extracts on the prevention of periodontal tissue breakdown in diabetic rats with orthodontic tooth movements 可可豆提取物对预防糖尿病大鼠牙齿正畸移动导致牙周组织破坏的影响
Q1 Medicine Pub Date : 2024-05-24 DOI: 10.1016/j.jobcr.2024.05.013
Nuzulul Hikmah , Mohamad Hidayat , Nur Permatasari , Aulanni'am Aulanni'am , Achmad Rudijanto

Objective

Proper management of orthodontic treatment in diabetic patients is essential due to the heightened risk of periodontal tissue breakdown associated with hyperglycemia. Cacao bean extracts (CBE) are known to reduce the inflammatory response and increase synthesis and angiogenesis in periodontitis. Therefore, this study aims to examine the effect of CBE on preventing periodontal tissue breakdown in diabetes with orthodontic force.

Methods

A total of 25 Wistar rats were divided randomly into 5 groups, including non-diabetes, diabetes, diabetes cacao 125, 250, and 500 mg/kg BW. Diabetic rats were induced with the stratified dose of Streptozotocin, and a 30-g-force from orthodontic device was applied in all groups. Diabetes cacao group was given CBE for 7 days using a gastric probe. GCF samples were used to analyze the eNOS level through the ELISA method. NFκB, Collagen-1, and FGF-2 expression were then assessed using the immunohistochemical method, while the number of fibroblasts and blood vessels was observed using hematoxylin-eosin stained tissue. The data obtained were analyzed with one-way ANOVA and post hoc tests, with p < 0.05.

Results

CBE at a dose of 250 mg/kg BW significantly increased eNOS level, Collagen-1, and FGF-2 expression, and the number of fibroblasts and blood vessels in diabetes groups. Meanwhile, the treatment decreased NFκB expression in diabetes groups (p < 0.05).

Conclusion

This study proved that CBE increased periodontal ligament synthesis and angiogenesis and decreased inflammatory response, thereby preventing periodontal tissue breakdown in diabetic rat models with tooth movement.

目标由于高血糖会增加牙周组织破坏的风险,因此对糖尿病患者正畸治疗的正确管理至关重要。众所周知,可可豆提取物(CBE)能减轻牙周炎的炎症反应,增加合成和血管生成。方法将 25 只 Wistar 大鼠随机分为 5 组,包括非糖尿病组、糖尿病组、糖尿病可可豆 125、250 和 500 mg/kg BW 组。各组均使用分层剂量的链脲佐菌素诱导糖尿病大鼠,并使用正畸装置施加 30 g 的力。糖尿病可可组使用胃探针连续 7 天给予 CBE。采用 ELISA 方法对 GCF 样品进行 eNOS 水平分析。然后用免疫组化方法评估 NFκB、胶原-1 和 FGF-2 的表达,并用苏木精-伊红染色组织观察成纤维细胞和血管的数量。结果 250 mg/kg BW 剂量的 CBE 能显著提高糖尿病组 eNOS 水平、胶原蛋白-1 和 FGF-2 表达、成纤维细胞和血管数量。结论本研究证明,CBE 可增加糖尿病模型大鼠牙周韧带的合成和血管生成,减少炎症反应,从而防止牙周组织的破坏。
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引用次数: 0
Stress distribution in endodontically treated external cervical resorption lesions restored with MTA and biodentine – A finite element analysis 使用 MTA 和生物牙本质修复的牙髓治疗外牙颈部吸收病变的应力分布 - 有限元分析
Q1 Medicine Pub Date : 2024-05-24 DOI: 10.1016/j.jobcr.2024.04.012
Mudita Manaktala , Sonali Taneja , Vidhi Kiran Bhalla

Introduction

Root resorption poses a significant challenge in dental practice, with external cervical resorption (ECR) being a common manifestation. ECR is often asymptomatic until advanced stages, complicating its diagnosis and management. Various factors contribute to its etiology, ranging from trauma to orthodontic treatment. The classification system proposed by Patel et al. (2018) offers a comprehensive framework for characterizing ECR lesions based on location and extent. Treatment strategies for ECR involve a combination of endodontic intervention and restorative techniques, with bioactive materials like mineral trioxide aggregate (MTA) and Biodentine emerging as promising options. However, the biomechanical behavior of teeth restored with these materials in the context of ECR remains underexplored.

Materials and methods

This study utilized finite element analysis (FEA) to assess stress distribution in teeth with simulated ECR lesions of varying sizes and locations, restored with MTA or Biodentine. Three-dimensional models of maxillary central incisors were generated based on CBCT scans, incorporating periodontal ligament and surrounding bone structures. Eight experimental models representing different ECR configurations were created and subjected to FEA using Optistruct software based on dimensional classification given by Patel et al., in 2018, A70 M & A70B: 1Ap, A130 M & A130B: 1Bp, B70 M & B70B: 2Ap, B130 M & B130B: 2Bp. All the models were tested for stress distribution by restoring the lesions with either M: MTA or B: Biodentine. Oblique load of 100 N was applied at 45°angle to the long axis 2 mm lingual to incisal edge. vonMises Stress distribution in enamel, dentine, restoration and at all the interfaces were observed.

Results

The analysis revealed that both MTA and Biodentine restorations exhibited uniform stress distribution around ECR lesions, with no significant differences based on lesion location or size. Maximum stress concentrations were observed around the restorations, particularly in subcrestal lesions. However, overall stress levels were comparable between MTA and Biodentine restorations, indicating similar biomechanical performance.

Conclusion

Finite element analysis provides valuable insights into the biomechanical behavior of teeth with ECR lesions restored with MTA and Biodentine. Both materials exhibit similar stress distribution patterns and offer adequate reinforcement against mechanical forces. Clinicians can confidently utilize MTA or Biodentine in the management of ECR, considering their favorable biomechanical properties and clinical outcomes. Further research is necessary to validate these findings and optimize treatment protocols for ECR.

导言牙根吸收是牙科实践中的一项重大挑战,其中外牙颈部吸收(ECR)是一种常见的表现形式。ECR 在晚期之前通常没有任何症状,这就使其诊断和治疗变得更加复杂。其病因多种多样,包括外伤和正畸治疗。帕特尔等人(2018 年)提出的分类系统为根据位置和范围描述 ECR 病变提供了一个全面的框架。ECR 的治疗策略涉及牙髓干预和修复技术的结合,其中三氧化二铝矿物骨料(MTA)和 Biodentine 等生物活性材料是很有前景的选择。材料和方法本研究利用有限元分析(FEA)来评估用 MTA 或 Biodentine 修复的不同大小和位置的模拟 ECR 病变牙齿的应力分布。根据 CBCT 扫描结果生成了上颌中切牙的三维模型,其中包含牙周韧带和周围骨结构。根据帕特尔等人在 2018 年给出的尺寸分类(A70 M & A70B: 1Ap、A130 M & A130B: 1Bp、B70 M & B70B: 2Ap、B130 M & B130B: 2Bp),创建了代表不同 ECR 配置的八个实验模型,并使用 Optistruct 软件进行有限元分析。结果分析表明,MTA 和 Biodentine 修复体在 ECR 病损周围的应力分布均匀,没有因病损位置或大小而产生的显著差异。在修复体周围观察到了最大的应力集中,尤其是在冠下病变处。然而,MTA 和 Biodentine 修复体的总体应力水平相当,这表明它们具有相似的生物力学性能。两种材料都表现出相似的应力分布模式,并对机械力提供了足够的加固作用。考虑到 MTA 或 Biodentine 良好的生物力学特性和临床效果,临床医生可以放心使用它们来治疗 ECR。要验证这些发现并优化 ECR 的治疗方案,还需要进一步的研究。
{"title":"Stress distribution in endodontically treated external cervical resorption lesions restored with MTA and biodentine – A finite element analysis","authors":"Mudita Manaktala ,&nbsp;Sonali Taneja ,&nbsp;Vidhi Kiran Bhalla","doi":"10.1016/j.jobcr.2024.04.012","DOIUrl":"https://doi.org/10.1016/j.jobcr.2024.04.012","url":null,"abstract":"<div><h3>Introduction</h3><p>Root resorption poses a significant challenge in dental practice, with external cervical resorption (ECR) being a common manifestation. ECR is often asymptomatic until advanced stages, complicating its diagnosis and management. Various factors contribute to its etiology, ranging from trauma to orthodontic treatment. The classification system proposed by Patel et al. (2018) offers a comprehensive framework for characterizing ECR lesions based on location and extent. Treatment strategies for ECR involve a combination of endodontic intervention and restorative techniques, with bioactive materials like mineral trioxide aggregate (MTA) and Biodentine emerging as promising options. However, the biomechanical behavior of teeth restored with these materials in the context of ECR remains underexplored.</p></div><div><h3>Materials and methods</h3><p>This study utilized finite element analysis (FEA) to assess stress distribution in teeth with simulated ECR lesions of varying sizes and locations, restored with MTA or Biodentine. Three-dimensional models of maxillary central incisors were generated based on CBCT scans, incorporating periodontal ligament and surrounding bone structures. Eight experimental models representing different ECR configurations were created and subjected to FEA using Optistruct software based on dimensional classification given by Patel et al., in 2018, A70 M &amp; A70B: 1Ap, A130 M &amp; A130B: 1Bp, B70 M &amp; B70B: 2Ap, B130 M &amp; B130B: 2Bp. All the models were tested for stress distribution by restoring the lesions with either M: MTA or B: Biodentine. Oblique load of 100 N was applied at 45°angle to the long axis 2 mm lingual to incisal edge. vonMises Stress distribution in enamel, dentine, restoration and at all the interfaces were observed.</p></div><div><h3>Results</h3><p>The analysis revealed that both MTA and Biodentine restorations exhibited uniform stress distribution around ECR lesions, with no significant differences based on lesion location or size. Maximum stress concentrations were observed around the restorations, particularly in subcrestal lesions. However, overall stress levels were comparable between MTA and Biodentine restorations, indicating similar biomechanical performance.</p></div><div><h3>Conclusion</h3><p>Finite element analysis provides valuable insights into the biomechanical behavior of teeth with ECR lesions restored with MTA and Biodentine. Both materials exhibit similar stress distribution patterns and offer adequate reinforcement against mechanical forces. Clinicians can confidently utilize MTA or Biodentine in the management of ECR, considering their favorable biomechanical properties and clinical outcomes. Further research is necessary to validate these findings and optimize treatment protocols for ECR.</p></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"14 4","pages":"Pages 415-422"},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S221242682400068X/pdfft?md5=f91e9dfa8c89227a56f7a7408f885f63&pid=1-s2.0-S221242682400068X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141090063","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
Systematic content analysis of self-help smokeless tobacco cessation smartphone applications available in India 对印度现有无烟戒烟自助智能手机应用的系统内容分析
Q1 Medicine Pub Date : 2024-05-24 DOI: 10.1016/j.jobcr.2024.04.011
Nishant Nishant , Arpit Gupta , Richa Shrivastava , Arpita Rai , Diptajit Das , Ashima Goyal

Background

The content of smartphone applications (apps) that offer smoking cessation interventions has been appraised in the past. Considering the high prevalence of smokeless tobacco (SLT) use in Southeast Asia, identifying high-quality and credible apps for SLT cessation would be more helpful.

Objective

This study evaluated the technical quality of apps for SLT cessation and their content adherence with the standard tobacco cessation guidelines.

Materials and methods

A systematic search of SLT cessation smartphone apps freely available in the Google PlayStore was conducted using nine relevant search terms, and the first fifty apps under each search term were identified. The technical quality of the apps was rated using the Mobile App Rating Scale (MARS). Adherence of the app content to the standard tobacco cessation guidelines was also determined.

Results

Three apps were found to be relevant for SLT cessation. However, none of the apps was high-quality or incorporated existing evidence on SLT cessation.

Conclusion

Adherence of these apps to the tobacco cessation guidelines by the National Tobacco Control Program (NTCP), India and the National Institute for Health and Care Excellence (NICE), U.K., was limited only to a few checklist parameters.

背景过去曾对提供戒烟干预的智能手机应用程序(App)的内容进行过评估。考虑到东南亚地区无烟烟草(SLT)使用的高流行率,确定高质量、可信的戒烟应用程序将更有帮助。本研究评估了戒烟应用程序的技术质量及其内容与标准戒烟指南的一致性。应用的技术质量采用移动应用评分表(MARS)进行评分。结果发现有三款应用程序与SLT戒烟相关。结论这些应用程序与印度国家烟草控制计划(NTCP)和英国国家健康与护理卓越研究所(NICE)制定的戒烟指南的一致性仅局限于一些核对表参数。
{"title":"Systematic content analysis of self-help smokeless tobacco cessation smartphone applications available in India","authors":"Nishant Nishant ,&nbsp;Arpit Gupta ,&nbsp;Richa Shrivastava ,&nbsp;Arpita Rai ,&nbsp;Diptajit Das ,&nbsp;Ashima Goyal","doi":"10.1016/j.jobcr.2024.04.011","DOIUrl":"https://doi.org/10.1016/j.jobcr.2024.04.011","url":null,"abstract":"<div><h3>Background</h3><p>The content of smartphone applications (apps) that offer smoking cessation interventions has been appraised in the past. Considering the high prevalence of smokeless tobacco (SLT) use in Southeast Asia, identifying high-quality and credible apps for SLT cessation would be more helpful.</p></div><div><h3>Objective</h3><p>This study evaluated the technical quality of apps for SLT cessation and their content adherence with the standard tobacco cessation guidelines.</p></div><div><h3>Materials and methods</h3><p>A systematic search of SLT cessation smartphone apps freely available in the Google PlayStore was conducted using nine relevant search terms, and the first fifty apps under each search term were identified. The technical quality of the apps was rated using the Mobile App Rating Scale (MARS). Adherence of the app content to the standard tobacco cessation guidelines was also determined.</p></div><div><h3>Results</h3><p>Three apps were found to be relevant for SLT cessation. However, none of the apps was high-quality or incorporated existing evidence on SLT cessation.</p></div><div><h3>Conclusion</h3><p>Adherence of these apps to the tobacco cessation guidelines by the National Tobacco Control Program (NTCP), India and the National Institute for Health and Care Excellence (NICE), U.K., was limited only to a few checklist parameters.</p></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"14 4","pages":"Pages 390-394"},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2212426824000678/pdfft?md5=647591fbbaaac4be0e6c2a66eb5d8219&pid=1-s2.0-S2212426824000678-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141090093","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
Forensic evaluation of craniometric characteristics of the Kazakhstan population 对哈萨克斯坦人口颅骨测量特征的法医评估
Q1 Medicine Pub Date : 2024-05-24 DOI: 10.1016/j.jobcr.2024.04.004
Saule A. Mussabekova , Anastasiya O. Stoyan , Xeniya E. Mkhitaryan , Saule B. Zhautikova

Background

The human skull is the part of the skeleton most frequently used in population studies, as it was more exposed to genetic factors and less exposed to environmental factors. The skull is an important component in human forensic identification.

Materials and methods

The craniometric characteristics of 186 male and 114 female skulls found on the territory of Kazakhstan were studied. Dimensions were measured using standard anthropometric methods and instruments. The results of measurements of 25 craniometric parameters are presented. Methods of descriptive and parametric statistics were used.

Results

Statistical analysis showed significant regional dimorphism, confirming theindividuality of the Kazakhstan population. Statistically significant deviations werefound in 6 male craniometric characteristics and 4 female craniometric characteristics(p<0.05). The most dimorphous variables for regional identification in Kazakhstanmales were the higher skull base and frontal chord width , full face height , condylarand bigonial width , and low mandibular body reference values (p<0.05). For females,significant statistical discrepancies were seen in the transverse diameter and skullbase width, mastoid and occipital aperture width (p<0.05).

Conclusion

The recorded variations and changes in the morphology of the humanskull of the population of Kazakhstan indicate the need to develop and updateosteometric standards used in practice for specific populations. All this will significantlyimprove the accuracy of forensic identification and more fully study the biologicalpatterns of population formation, as well as evaluate the comparative effectiveness ofindividual features in the reconstruction of the population history of various populationgroups.

背景人类头骨是人口研究中最常用的骨骼部分,因为它受遗传因素的影响较大,受环境因素的影响较小。材料和方法研究了在哈萨克斯坦境内发现的 186 个男性头骨和 114 个女性头骨的颅骨测量特征。使用标准人体测量方法和仪器测量了头骨的尺寸。本文介绍了 25 项头颅测量参数的测量结果。结果统计分析显示了显著的区域二态性,证实了哈萨克斯坦人口的个体性。在 6 个男性颅骨测量特征和 4 个女性颅骨测量特征中发现了具有统计学意义的偏差(p<0.05)。哈萨克斯坦男性在地区识别方面最二形的变量是较高的颅底和额弦宽度、全脸高度、髁状突和颌骨宽度以及较低的下颌骨体参考值(p<0.05)。女性在横径和颅底宽度、乳突和枕骨孔宽度方面存在明显的统计学差异(p<0.05)。所有这些都将大大提高法医鉴定的准确性,更全面地研究人口形成的生物模式,以及评估个体特征在重建不同人群历史中的比较效果。
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引用次数: 0
Quantitative and qualitative analysis of metallic ion release of orthodontic brackets in three different pH conditions - An invitro study 三种不同 pH 值条件下正畸托槽金属离子释放的定量和定性分析 - 一项无创研究
Q1 Medicine Pub Date : 2024-05-24 DOI: 10.1016/j.jobcr.2024.05.001
Pradeep DA , Saraa Angel L , Prabhat Kumar Chaudhari , Subhash C. Yadav , Ritu Duggal

Background

Fluoridated mouth rinses improve anti-cariogenic environment but decrease oral pH below critical value, affecting orthodontic bracket surface topography and causing corrosive changes over prolonged use. This invitro study aimed to quantitatively and qualitatively assess the surface topography and metallic ion release of the stainless steel (SS) brackets at varying acidic and alkaline pH.

Materials and methods

Forty unused SS brackets were divided into four groups (Group A, B, C, D) and immersed for 48- hours in solutions of artificial saliva and sodium fluoride (0.2 %) mouth rinse at varying pH of 5.5,6.7,7 and 8. The surface morphologic changes were analyzed under scanning electron microscope (SEM) at 50×, 150×, and 500× magnification. The changes in slot area were scored using the customized scale. The Energy Dispersive Xray Spectroscopy Analysis (EDAX) was used to estimate the probed elements' atomic and weight percentage.

Results

The mean score of the scale was 3.4 for the brackets immersed in the acidic solution which was statistically significant (p = 0.00)and for alkaline and neutral solutions (p = 0.00). Chromium was found to be significantly higher in the alkaline solution (p = 0.016) followed by the neutral solution. Carbon was found excess in acidic solution than the neutral and alkaline solution.

Conclusion

Quantitative and qualitative analysis of the ion release in stainless steel brackets using SEM and EDAX revealed the corrosive effect of fluoride ion causing maximum surface changes in acidic medium and chromium release in alkaline pH.

背景含氟漱口水可改善抗龋齿环境,但会使口腔 pH 值降至临界值以下,从而影响正畸托槽的表面形貌,并在长期使用过程中产生腐蚀性变化。这项无创研究旨在定量和定性评估不锈钢(SS)托槽在不同酸碱 pH 值下的表面形貌和金属离子释放情况。材料和方法将 40 个未使用过的 SS 托槽分为四组(A、B、C、D 组),分别浸泡在人工唾液和氟化钠(0.2%)漱口水溶液中 48 小时,pH 值分别为 5.5、6.7、7 和 8。在 50×、150× 和 500× 倍率的扫描电子显微镜(SEM)下分析表面形态变化。使用定制的刻度对槽面积的变化进行评分。结果浸泡在酸性溶液中的支架的刻度平均分为 3.4,具有统计学意义(p = 0.00),浸泡在碱性和中性溶液中的支架的刻度平均分为 3.4,具有统计学意义(p = 0.00)。铬在碱性溶液中明显偏高(p = 0.016),其次是中性溶液。结论使用 SEM 和 EDAX 对不锈钢托架中的离子释放进行定性和定量分析,发现氟离子的腐蚀作用在酸性介质中造成最大的表面变化,而铬的释放则在碱性 pH 值中造成最大的表面变化。
{"title":"Quantitative and qualitative analysis of metallic ion release of orthodontic brackets in three different pH conditions - An invitro study","authors":"Pradeep DA ,&nbsp;Saraa Angel L ,&nbsp;Prabhat Kumar Chaudhari ,&nbsp;Subhash C. Yadav ,&nbsp;Ritu Duggal","doi":"10.1016/j.jobcr.2024.05.001","DOIUrl":"https://doi.org/10.1016/j.jobcr.2024.05.001","url":null,"abstract":"<div><h3>Background</h3><p>Fluoridated mouth rinses improve anti-cariogenic environment but decrease oral pH below critical value, affecting orthodontic bracket surface topography and causing corrosive changes over prolonged use. This invitro study aimed to quantitatively and qualitatively assess the surface topography and metallic ion release of the stainless steel (SS) brackets at varying acidic and alkaline pH.</p></div><div><h3>Materials and methods</h3><p>Forty unused SS brackets were divided into four groups (Group A, B, C, D) and immersed for 48- hours in solutions of artificial saliva and sodium fluoride (0.2 %) mouth rinse at varying pH of 5.5,6.7,7 and 8. The surface morphologic changes were analyzed under scanning electron microscope (SEM) at 50×, 150×, and 500× magnification. The changes in slot area were scored using the customized scale. The Energy Dispersive Xray Spectroscopy Analysis (EDAX) was used to estimate the probed elements' atomic and weight percentage.</p></div><div><h3>Results</h3><p>The mean score of the scale was 3.4 for the brackets immersed in the acidic solution which was statistically significant (p = 0.00)and for alkaline and neutral solutions (p = 0.00). Chromium was found to be significantly higher in the alkaline solution (p = 0.016) followed by the neutral solution. Carbon was found excess in acidic solution than the neutral and alkaline solution.</p></div><div><h3>Conclusion</h3><p>Quantitative and qualitative analysis of the ion release in stainless steel brackets using SEM and EDAX revealed the corrosive effect of fluoride ion causing maximum surface changes in acidic medium and chromium release in alkaline pH.</p></div>","PeriodicalId":16609,"journal":{"name":"Journal of oral biology and craniofacial research","volume":"14 4","pages":"Pages 435-440"},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2212426824000708/pdfft?md5=83d254ec967ae1f5b8ba8a834bb3db7b&pid=1-s2.0-S2212426824000708-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141090089","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
Erratum regarding missing declaration of competing interest statements in previously published articles 关于以前发表的文章中缺少竞争利益声明的勘误
Q1 Medicine Pub Date : 2024-05-23 DOI: 10.1016/j.jobcr.2024.05.009
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引用次数: 0
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Journal of oral biology and craniofacial research
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