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Tongue Piercing: experience of piercees and practice of piercers in Klang Valley, Malaysia 舌穿孔:马来西亚巴生谷的穿孔经验和实践
Pub Date : 2016-12-30 DOI: 10.22452/ADUM.VOL23NO2.2
R. Saub, Nurul Muhaimin Mohamad Mohsin, Wan Nurfitriyana Wan Othman
To explore the phenomenon of tongue piercing in Klang Valley. Semi-structured in-depth interviews were conducted with piercers and those who had their tongue pierced (“piercees”) in Klang Valley. Five piercers and eight piercees were interviewed. Piercees had their tongue pierced at age 16-25 years. Three mainreasons for tongue piercing were to enhance appearance, express their individuality, and out of curiosity. They reported that they experienced various immediate and late complications. However, most were aware of and expected the complications. The majority of piercers reported adequate infection control procedures and enquired about the client’s health prior to piercing. Although some clients reported problems, such reports were rare. Tongue piercing is an invasive procedure with some risks, but precautions such as proper infection control procedures minimize the likelihood of encountering serious problems. The reasons for tongue piercing varied between individuals. Although the majority of the interviewed piercers reported cross-infection control, their knowledge of the medical risks associated with tongue piercing varied widely.
探讨巴生谷的刺舌现象。我们对巴生谷的穿孔者和舌孔者进行了半结构化的深度访谈。采访了5名穿孔者和8名穿孔者。在16-25岁之间穿舌孔的人。在舌头上穿环的三个主要原因是为了增强外表、表达个性和出于好奇。他们报告说,他们经历了各种即时和晚期并发症。然而,大多数人都意识到并预料到了并发症。大多数穿刺者报告了充分的感染控制程序,并在穿刺前询问了客户的健康状况。尽管一些客户报告了问题,但这样的报告很少。舌头穿孔是一种有一定风险的侵入性手术,但适当的感染控制程序等预防措施可以最大限度地减少遇到严重问题的可能性。穿舌环的原因因人而异。虽然大多数接受采访的穿刺者报告了交叉感染的控制,但他们对舌穿刺相关医疗风险的了解差异很大。
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引用次数: 0
Oral Hygiene Practices and Bottle Feeding Pattern Among Children with Early Childhood Caries: A Preliminary Study 儿童早期龋齿的口腔卫生习惯与奶瓶喂养方式的初步研究
Pub Date : 2016-12-30 DOI: 10.22452/ADUM.VOL23NO2.1
N. Buhari, Zainal Abidin Fn, S.A. Mani, I. Khan
The purpose of this study was to assess the association of bottle feeding and oral hygiene practices with the severity of caries among 3 to 5-year-old children with Early Childhood Caries (ECC). This cross-sectional study was carried out on pediatric dental patients with ECC attending a public university hospital. Theparents or guardians were interviewed for the bottle-feeding pattern and oral hygiene practices followed by a clinical dental examination of their children with ECC. Data analysis was done using Chi squared test. Out of 32 children, 69% had severe early childhood caries with mean dft of 8.88. In this study, 87.5% ofthe subjects had a history of bottle feeding, with 53.1% still being bottle fed at the time of study. Current bottle-feeding habit was found to be statistically significant with the severity of caries (p=0.021). Majority (69 %) of the children were introduced to tooth brushing only after 1 year of age. About 40% of the children consumed either pre-chewed rice and/or shared spoons or feeding utensils with their parents or siblings but there was no significant association with the severity of caries (p=1.00). Because of its association with ECC, prolonged bottle feeding is significantly associated with the severity of caries in our study population. Besides, vertical and horizontal transmission of bacteria was also a risk factor for ECC, but it did not show any significant association with severity of ECC.
本研究的目的是评估奶瓶喂养和口腔卫生习惯与3 - 5岁早期儿童龋病(ECC)严重程度的关系。本研究是针对在公立大学医院就诊的儿童牙科患者进行的横断面研究。对家长或监护人进行访谈,了解其奶瓶喂养方式和口腔卫生习惯,然后对患有ECC的儿童进行临床牙科检查。数据分析采用卡方检验。在32名儿童中,69%患有严重的早期儿童龋齿,平均dft为8.88。在本研究中,87.5%的受试者有奶瓶喂养史,其中53.1%的受试者在研究时仍在奶瓶喂养。目前的奶瓶喂养习惯与龋齿严重程度有统计学意义(p=0.021)。大多数(69%)儿童在1岁以后才开始刷牙。约40%的儿童食用预先咀嚼过的米饭和/或与父母或兄弟姐妹共用勺子或喂养器具,但这与龋齿的严重程度没有显著关联(p=1.00)。在我们的研究人群中,长期奶瓶喂养与龋病的严重程度显著相关,因为它与ECC有关。此外,细菌的垂直和水平传播也是ECC的危险因素,但与ECC的严重程度无显著相关性。
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引用次数: 3
Depth of Cure and Mechanical Properties of Bulk-Fill Posterior Dental Composites 块状充填后牙复合材料的固化深度及力学性能
Pub Date : 2016-06-30 DOI: 10.22452/ADUM.VOL23NO1.2
Saamah An, Said As, N. A. Yahya
The objectives of this study were to compare the microhardness, flexural strength and compressive strength of a new bulk-fill composite (SonicFill™) to a conventional nanohybrid composite (Herculite Precis) and an established bulk-fill composite (Tetric N Ceram). In addition, the depth of cure of the two bulk-fill resin composites was also investigated. The materials were prepared and tested for the mechanical properties following ISO 4049:2009. Microhardness and depth of cure were measured using Vickers hardness tester. Compressive and flexural strength were tested using a universal testing machine. To determine the depth of cure, microhardness of the bulk-fill composites were measured as a function of selected depth of materials at 0.5 mm, 2.0 mm and 4.0 mm. Data were analyzed by either one-way ANOVA or Friedman test. Analysis demonstrated that SonicFill™ gave the highest microhardness value (101.8 + 4.6 VHN) compared to the other two groups. There were no significant differences among all groups in flexural and compressive strength. The depth of cure decreased as the thickness of both bulk-fill composites increased. In conclusion, SonicFill™ showed favorable mechanical properties compared to other composites tested. In both bulk-filled groups, microhardness value decreased as the thickness of the composite increased. The polymerization of the bulk-filled composites was effective only at 2 mm or less.
本研究的目的是比较新型填充复合材料(SonicFill™)与传统纳米复合材料(Herculite Precis)和现有填充复合材料(Tetric N Ceram)的显微硬度、抗折强度和抗压强度。此外,还研究了两种块体填充树脂复合材料的固化深度。按照ISO 4049:2009标准制备并测试了材料的机械性能。采用维氏硬度计测定显微硬度和固化深度。在万能试验机上进行了抗压和抗折强度测试。为了确定固化深度,测量了块体填充复合材料的显微硬度作为材料深度选择的函数,分别为0.5 mm, 2.0 mm和4.0 mm。数据分析采用单因素方差分析或Friedman检验。分析表明,与其他两组相比,SonicFill™具有最高的显微硬度值(101.8 + 4.6 VHN)。各组间抗折、抗压强度无显著差异。随着两种块体填充复合材料厚度的增加,固化深度减小。总之,与其他测试的复合材料相比,SonicFill™具有良好的机械性能。在两个填充体组中,显微硬度值随着复合材料厚度的增加而降低。体积填充复合材料的聚合仅在2mm或更小的地方有效。
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引用次数: 4
Three-Dimensional Cell Culture at the Frontiers of in Vitro Cancer Research: Present Perspectives 三维细胞培养在体外肿瘤研究的前沿:目前的观点
Pub Date : 2016-06-30 DOI: 10.22452/ADUM.VOL23NO1.1
Soo Leng Lee, Z. Rahman, H. Tsujigiwa, Kiyofumi Takabatake, K. Nakano, W. Chai, H. Nagatsuka, C. Siar
In recent years, three-dimensional (3D) in vitro cell culture models have earned great attention, especially in the field of human cancer disease modelling research as they provide a promising alternative towards the conventional two-dimensional (2D) monolayer culture of cells with improved tissue organization. In 2D cell culture systems, the complexity of cells on a planar surface does not accurately reflects the in vivo cellular microenvironment. Cells propagated in 3D cell culture model, on the other hand, exhibit physiologically relevant cell-to-cell interactions and cell-to-extracellular matrix (ECM) interactions, important in maintaining a normal homeostasis and specificity of tissues. This review gives an overview on 2D models and their limitations, followed by 3D cell culture models, their advantages, drawbacks and challenges in present perspectives. The review also highlights the dissimilarities of 2D and 3D models and the applicability of 3D models in current cancer research.
近年来,体外三维(3D)细胞培养模型备受关注,特别是在人类癌症疾病建模研究领域,因为它们为传统的二维(2D)单层细胞培养提供了一种有希望的替代方法,改善了组织组织。在二维细胞培养系统中,细胞在平面上的复杂性并不能准确反映体内细胞微环境。另一方面,在3D细胞培养模型中繁殖的细胞表现出与生理相关的细胞间相互作用和细胞与细胞外基质(ECM)相互作用,这对维持正常的体内平衡和组织的特异性很重要。本文综述了二维细胞培养模型及其局限性,然后介绍了三维细胞培养模型的优点、缺点和当前面临的挑战。该综述还强调了2D和3D模型的不同之处以及3D模型在当前癌症研究中的适用性。
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引用次数: 0
Mechanical and Surface Properties of Initial and Working Aesthetic Orthodontic Archwires 初始和工作美学正畸弓线的力学和表面特性
Pub Date : 2016-06-30 DOI: 10.22452/ADUM.VOL23NO1.3
Tang Yc, Peh Xl, Zakaria Nn, Radzi Z
The study aimed to compare mechanical properties and surface characteristics of initial and working aesthetic archwires with their conventional counterparts. High Aesthetic Sentalloy (full rhodium coating nickel-titanium; Dentsply GAC) represented the initial aesthetic archwires; and FLI TRU-CHROME (labial PTFE-coated stainless steel; RMO) as the working aesthetic archwires; together with their conventional counterparts were analysed. A three point bending test was conducted using a universal testing machine (AGS-X SERIES, Shimadzu, Japan) to determine the load-deflection characteristics of archwires. Surface hardness was evaluated by Vickers microhardness test (HMV-FA, Shimadzu, Japan). A 3D Optical Surface Texture Analyzer (ALICONA, InfiniteFocus Real3D, Belgium) and a Field Emission Scanning Electron Microscope (FESEM, FEI Quanta 250, USA) were used for surface evaluation. Results showed that loaddeflection characteristics of High Aesthetic Sentalloy archwires did not differ from its control, whereas FLI TRU-CHROME archwires exhibited higher loading and unloading forces than its counterpart. No statistically significant difference in surface hardness was found between FLI TRU-CHROME and its control archwires. The coating surfaces of both aesthetic archwires were rougher than the non-coated conventional archwires, with similar roughness between non-coated surface of FLI TRU-CHROME archwires and its counterpart. FLI TRU-CHROME archwires showed a distinct coating thickness but coating layer is undefined in High Aesthetic Sentalloy archwires. In conclusion, the aesthetic rhodium coated nickel titanium archwire has similar mechanical properties as control nickel titanium archwire without being adversely affected by the addition of the coating layer. The aesthetic coated PTFE stainless steel archwire has higher load response which could be an advantage as rigid wire in working stage of orthodontic treatment. Based on their performance, their use could be recommended in cases where aesthetic aspect is crucial and where the friction aspect is not critical as their surface roughness values increased.
该研究旨在比较初始和工作美学弓线与常规弓线的机械性能和表面特征。高美学Sentalloy(全铑镀镍钛);Dentsply GAC)代表了最初的美学弧线;和FLI truc - chrome(唇部ptfe涂层不锈钢;RMO)作为工作美学的拱线;与传统对应物一起进行了分析。采用万能试验机(AGS-X SERIES, Shimadzu, Japan)进行三点弯曲试验,以确定弓丝的载荷-挠度特性。表面硬度采用维氏显微硬度测试(HMV-FA, Shimadzu, Japan)。使用三维光学表面纹理分析仪(ALICONA, InfiniteFocus Real3D,比利时)和场发射扫描电子显微镜(FESEM, FEI Quanta 250,美国)进行表面评价。结果表明,高美观性Sentalloy弓丝的载荷偏转特性与对照无明显差异,而FLI truc - chrome弓丝的加载和卸载力均高于对照。FLI truc - chrome与对照弓丝的表面硬度无统计学差异。两种美学弧线的涂层表面都比未涂层的传统弧线更粗糙,未涂层的FLI truc - chrome弧线表面粗糙度与同类产品相似。FLI truc - chrome弧线的镀层厚度明显,但高美学Sentalloy弧线的镀层厚度不明确。综上所述,美学镀铑镍钛弓丝具有与对照镍钛弓丝相似的力学性能,且不受镀层添加的不利影响。美观涂层的聚四氟乙烯不锈钢弓丝具有较高的载荷响应,在正畸治疗的工作阶段作为刚性丝具有优势。基于它们的性能,可以推荐在美观方面至关重要的情况下使用它们,而摩擦方面并不重要,因为它们的表面粗糙度值增加。
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引用次数: 3
Prevalence of Oral Potentially Malignant Disorders and Awareness on Oral Cancer among Dental Patients 口腔潜在恶性疾病的患病率及对口腔癌的认识
Pub Date : 2016-06-30 DOI: 10.22452/ADUM.VOL23NO1.5
Ahmad Moin N, Zulkiffli S, Kallarakkal Tg
The burden of head and neck squamous cell carcinoma (HNSCC) is increasing globally with 600,000new cases being reported annually. A great proportion of these are oral squamous cell carcinomas (OSCCs) which are preceded by oral potentially malignant disorders (OPMDs). The aim of our study was to assess the prevalence of OPMDs among adult Malaysian dental patients with and without risk habits. The objectives of this study were i) to determine the prevalence of OPMDs among dental patients who were tobacco smokers ii) to determine the prevalence of OPMDs among dental patients who were alcohol users iii) to determine the prevalence of OPMDs among dental patients without any risk habits iv) to determine the awareness on oral cancer among dental patients with and without risk habits. Materials and methods: This was a cross sectional observational study, carried out at Faculty of Dentistry, University of Malaya. A conventional oral examination was conducted by two investigators who were trained and calibrated prior to the survey. Participants were administered a questionnaire that was pre-tested in a previous study. 83 subjects were recruited into the study. Leukoplakia was the only OPMD detected in our study with a prevalence of 10.8%. All patients diagnosed with leukoplakia were males (P < 0.05). A significant association between the prevalence of OPMDs and risk habits was found. There was a general lack of awareness among smokers regarding alcohol as an aetiological agent for oral cancer. A  significant proportion of subjects who smoked were unaware of early signs of oral cancer.
头颈部鳞状细胞癌(HNSCC)的负担正在全球范围内增加,每年报告60万新病例。其中很大一部分是口腔鳞状细胞癌(oscc),在口腔潜在恶性疾病(OPMDs)之前。我们研究的目的是评估有和没有危险习惯的马来西亚成年牙科患者中opmd的患病率。本研究的目的是:(1)确定吸烟牙科患者的opmd患病率;(2)确定饮酒牙科患者的opmd患病率;(3)确定无危险习惯牙科患者的opmd患病率;(4)确定有和无危险习惯牙科患者对口腔癌的认识。材料和方法:这是一项横断面观察性研究,在马来亚大学牙科学院进行。常规口腔检查由两名调查人员进行,他们在调查前接受过培训和校准。参与者在之前的研究中被预先测试了一份问卷。83名受试者被招募到这项研究中。白斑是本研究中唯一检测到的OPMD,患病率为10.8%。诊断为白斑的患者均为男性(P < 0.05)。发现opmd患病率与风险习惯之间存在显著关联。吸烟者普遍缺乏对酒精是口腔癌病因的认识。很大一部分吸烟者没有意识到口腔癌的早期症状。
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引用次数: 2
The Incidence of Signs and Symptoms of Temporomandibular Disorders Following Third Molar Surgery 第三磨牙手术后颞下颌紊乱症状和体征的发生率
Pub Date : 2016-06-30 DOI: 10.22452/ADUM.VOL23NO1.4
Munawar Nk, Abdukakharova Ss, F. Hariri
Third molar surgery, a common dental procedure in Dental Faculty University Malaya, is known to pose many possible complications, one of which is temporomandibular disorder (TMD); a chronic pain concerning the joint apparatus, masticatory musculature and the associated muscle of head and neck region. This research aims (i) to examine the signs and symptoms of TMD following third molar surgery (ii) to study the surgical components of third molar surgery that contribute to the development of TMD (iii) to compare incidence of TMD between operative and non-operative group six months after third molar surgery. A descriptive longitudinal cohort study was conducted by recruiting twenty-two patients as subjects of an operative group, and twenty patients as subjects of a non-operative group. The operative group were examined at baseline, one week, one month, three months and six months after surgery. Each patient underwent a series of Diagnostic Criteria of TMD DC/TMD examination and history questionnaire. In the operative group, we found (i) increased incidence of trismus (92%), myofascial pain (69%) and clicking (77%) of the patient group at one week review (ii) two new incidences of signs and symptoms of TMD at final review (iii) no significant relationship between operator qualification to development of TMD (iv) no association between degree of impaction to development of TMD (v) no relationship between duration of procedures to development of TMD (vi) there is a significant difference in signs and symptoms of TMD between operative group and control group (p<0.005).
第三磨牙手术是马来亚牙科学院大学常见的牙科手术,已知会造成许多可能的并发症,其中之一是颞下颌紊乱(TMD);一种涉及头颈部关节器官、咀嚼肌肉及相关肌肉的慢性疼痛。本研究旨在(i)检查第三磨牙手术后TMD的体征和症状;(ii)研究第三磨牙手术中导致TMD发展的手术成分;(iii)比较第三磨牙手术后6个月手术组和非手术组TMD的发生率。采用描述性纵向队列研究方法,选取22例患者作为手术组,20例患者作为非手术组。手术组分别于术后1周、1个月、3个月、6个月进行基线检查。每位患者均接受一系列TMD诊断标准DC/TMD检查和病史问卷调查。在手术组中,我们发现:(1)唇腭裂的发生率增加(92%);肌筋膜疼痛(69%)和点击(77%)患者组在一周复查时(ii)两次新的TMD体征和症状的发生率(iii)操作者资格与TMD发展之间无显著关系(iv)影响程度与TMD发展之间无关联(v)手术时间与TMD发展之间无关系(vi)手术组与对照组之间TMD的体征和症状有显著差异(p<0.005)。
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引用次数: 1
Awareness and Knowledge of Smoking and Periodontitis Among Dental Patients 牙科患者对吸烟与牙周炎的认知和知识
Pub Date : 2015-12-31 DOI: 10.22452/ADUM.VOL22NO2.3
Sadikin As, Mansor H, Saub R, Vaithlingam Rd
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引用次数: 0
An Audit of the Turnaround Time of Fixed Prosthodontics Cases in the Ceramic Laboratory 陶瓷实验室固定修复病例周转时间的审计
Pub Date : 2015-12-31 DOI: 10.22452/adum.vol22no2.1
Y. WaiYing, A. Khan, Sheikh Aladin Sha, M. Ns, Prema Sukumaran
This clinical audit is aimed to provide an insight into the performance of dental technicians in rendering fixed prosthodontics services at Faculty of Dentistry, University of Malaya. A retrospective audit was carried out between 1 st of November 2014 and 31 st January 2015 using data derived from records and monthly returns of the technicians, which are kept at the ceramic laboratory. Retrospective data on cases of diagnostic wax-ups, full metal crowns, metal ceramic crowns, all ceramic crowns and bridges that were sent to ceramic laboratory for fabrication from 1 st of September 2013 to 31 st of August 2014 was systematically extracted from the record and tabulated categorically in SPSS version 22.0. The turnaround time in workings day for diagnostic wax-ups and the prostheses was calculated by deducting exit date from entry date. Subsequently, the turnaround time and the complexity of cases were categorized accordingly. The association of turnaround time and the complexity of the cases was analysed using Fisher Exact test with p value < 0.05. Within this time frame, a total of 102 cases of diagnostic wax-ups, 36 cases of crown and 18 cases of bridges were fabricated. 57.8% of diagnostic wax-ups were completed within 3 days. 100% of 1 unit crown were completed within 7 days and 94.4% of bridges were completed within 14 days. There was a significant association of turnaround time and the complexity of the cases for diagnostic wax-ups and crowns with p value <0.05. The standard for turnaround time is being met by the ceramic laboratory at Faculty of Dentistry, University of Malaya. However, due to the excessive workload, the overall output of all the measured procedures remains low.
本次临床审核旨在深入了解马来亚大学牙科学院牙科技术人员在提供固定修复服务方面的表现。在2014年11月1日至2015年1月31日期间进行了回顾性审核,使用的数据来自陶瓷实验室保存的技术人员的记录和月度报表。回顾性分析2013年9月1日至2014年8月31日送陶瓷实验室制作的诊断性结蜡病例、全金属冠病例、金属陶瓷冠病例、全陶瓷冠病例、全陶瓷冠病例和桥病例的资料,系统提取并在SPSS 22.0中分类制表。诊断性上蜡和假体的周转时间在工作日内由进入日期减去退出日期计算。随后,对案件的周转时间和复杂程度进行了分类。采用Fisher精确检验分析周转时间与病例复杂性的关系,p值< 0.05。在此期间,共制作了102例诊断性上蜡,36例冠和18例桥。57.8%的诊断蜡检在3天内完成。1个单位冠7 d内成形率100%,14 d内成形率94.4%。诊断性上蜡和冠的周转时间与病例的复杂程度有显著相关(p值<0.05)。马来亚大学牙科学院的陶瓷实验室达到了周转时间的标准。然而,由于工作量过大,所有测量程序的总体输出仍然很低。
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引用次数: 0
Satisfaction of Patient in Undergraduate Periodontal Clinic at University of Malaya 马来亚大学牙周专科门诊患者满意度调查
Pub Date : 2015-12-31 DOI: 10.22452/adum.vol22no2.5
M. Abdulghani, Mohd Zaki Mh, C. W. Cheah
The aim of study was to evaluate the level of satisfaction of patients treated in the undergraduate Year 4 and Year 5 of University of Malaya. The subjects were patients treated in the Year 4 periodontology clinic (Polyclinic B) (n=38) and Year 5 periodontology clinic (Polyclinic C) (n=30). Data was gathered using a questionnaire which consisted of 4 components namely appointment facilities, infrastructure and basic facilities, behaviour of students dental clinician, and quality and efficiency of treatment provided. The results showed that for appointment facilities the level of satisfaction was almost 80%; for infrastructure and basic facilities the satisfaction was more than 85%; for behavior of students dental clinician the level of satisfaction was more than 90% and for quality and efficiency of treatment provided the level of satisfaction was more than 60%. When all the components were compared between patients treated in Polyclinic B to patients treated in Polyclinic C, there was no statistically significant difference (p>0.05). In conclusion, the level of satisfaction of patients treated in the undergraduate Year 4 and Year 5 periodontology clinic of University of Malaya is the same.
本研究的目的是评估马来亚大学本科四年级和五年级患者的满意度。研究对象是在四年级牙周病诊所(B综合诊所)(n=38)和五年级牙周病诊所(C综合诊所)(n=30)接受治疗的患者。采用问卷调查的方式收集数据,问卷调查内容包括预约设施、基础设施和基本设施、学生牙科临床医生的行为以及所提供治疗的质量和效率。结果表明,对预约设施的满意度接近80%;基础设施和基础设施满意度在85%以上;学生对牙科临床医生的行为满意度在90%以上,对治疗质量和效率满意度在60%以上。B综合门诊患者与C综合门诊患者的各项指标比较,差异无统计学意义(p < 0.05)。综上所述,马来亚大学本科四年级和五年级牙周病门诊患者的满意度是相同的。
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引用次数: 0
期刊
Annals of dentistry
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